--- /dev/null
- while (pkt_temp->size > 0) {
+/*
+ * ffplay : Simple Media Player based on the FFmpeg libraries
+ * Copyright (c) 2003 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include <inttypes.h>
+#include <math.h>
+#include <limits.h>
+#include "libavutil/avstring.h"
+#include "libavutil/colorspace.h"
+#include "libavutil/mathematics.h"
+#include "libavutil/pixdesc.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/dict.h"
+#include "libavutil/parseutils.h"
+#include "libavutil/samplefmt.h"
+#include "libavutil/avassert.h"
+#include "libavformat/avformat.h"
+#include "libavdevice/avdevice.h"
+#include "libswscale/swscale.h"
+#include "libavcodec/audioconvert.h"
+#include "libavutil/opt.h"
+#include "libavcodec/avfft.h"
+
+#if CONFIG_AVFILTER
+# include "libavfilter/avcodec.h"
+# include "libavfilter/avfilter.h"
+# include "libavfilter/avfiltergraph.h"
+# include "libavfilter/buffersink.h"
+#endif
+
+#include <SDL.h>
+#include <SDL_thread.h>
+
+#include "cmdutils.h"
+
+#include <unistd.h>
+#include <assert.h>
+
+const char program_name[] = "ffplay";
+const int program_birth_year = 2003;
+
+#define MAX_QUEUE_SIZE (15 * 1024 * 1024)
+#define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
+#define MIN_FRAMES 5
+
+/* SDL audio buffer size, in samples. Should be small to have precise
+ A/V sync as SDL does not have hardware buffer fullness info. */
+#define SDL_AUDIO_BUFFER_SIZE 1024
+
+/* no AV sync correction is done if below the AV sync threshold */
+#define AV_SYNC_THRESHOLD 0.01
+/* no AV correction is done if too big error */
+#define AV_NOSYNC_THRESHOLD 10.0
+
+#define FRAME_SKIP_FACTOR 0.05
+
+/* maximum audio speed change to get correct sync */
+#define SAMPLE_CORRECTION_PERCENT_MAX 10
+
+/* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
+#define AUDIO_DIFF_AVG_NB 20
+
+/* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
+#define SAMPLE_ARRAY_SIZE (2*65536)
+
+static int sws_flags = SWS_BICUBIC;
+
+typedef struct PacketQueue {
+ AVPacketList *first_pkt, *last_pkt;
+ int nb_packets;
+ int size;
+ int abort_request;
+ SDL_mutex *mutex;
+ SDL_cond *cond;
+} PacketQueue;
+
+#define VIDEO_PICTURE_QUEUE_SIZE 2
+#define SUBPICTURE_QUEUE_SIZE 4
+
+typedef struct VideoPicture {
+ double pts; ///<presentation time stamp for this picture
+ double target_clock; ///<av_gettime() time at which this should be displayed ideally
+ double duration; ///<expected duration of the frame
+ int64_t pos; ///<byte position in file
+ SDL_Overlay *bmp;
+ int width, height; /* source height & width */
+ int allocated;
+ enum PixelFormat pix_fmt;
+
+#if CONFIG_AVFILTER
+ AVFilterBufferRef *picref;
+#endif
+} VideoPicture;
+
+typedef struct SubPicture {
+ double pts; /* presentation time stamp for this picture */
+ AVSubtitle sub;
+} SubPicture;
+
+enum {
+ AV_SYNC_AUDIO_MASTER, /* default choice */
+ AV_SYNC_VIDEO_MASTER,
+ AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
+};
+
+typedef struct VideoState {
+ SDL_Thread *read_tid;
+ SDL_Thread *video_tid;
+ SDL_Thread *refresh_tid;
+ AVInputFormat *iformat;
+ int no_background;
+ int abort_request;
+ int paused;
+ int last_paused;
+ int seek_req;
+ int seek_flags;
+ int64_t seek_pos;
+ int64_t seek_rel;
+ int read_pause_return;
+ AVFormatContext *ic;
+
+ int audio_stream;
+
+ int av_sync_type;
+ double external_clock; /* external clock base */
+ int64_t external_clock_time;
+
+ double audio_clock;
+ double audio_diff_cum; /* used for AV difference average computation */
+ double audio_diff_avg_coef;
+ double audio_diff_threshold;
+ int audio_diff_avg_count;
+ AVStream *audio_st;
+ PacketQueue audioq;
+ int audio_hw_buf_size;
+ /* samples output by the codec. we reserve more space for avsync
+ compensation */
+ DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
+ DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
+ uint8_t *audio_buf;
+ unsigned int audio_buf_size; /* in bytes */
+ int audio_buf_index; /* in bytes */
+ int audio_write_buf_size;
+ AVPacket audio_pkt_temp;
+ AVPacket audio_pkt;
+ enum AVSampleFormat audio_src_fmt;
+ AVAudioConvert *reformat_ctx;
+ double audio_current_pts;
+ double audio_current_pts_drift;
+
+ enum ShowMode {
+ SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB
+ } show_mode;
+ int16_t sample_array[SAMPLE_ARRAY_SIZE];
+ int sample_array_index;
+ int last_i_start;
+ RDFTContext *rdft;
+ int rdft_bits;
+ FFTSample *rdft_data;
+ int xpos;
+
+ SDL_Thread *subtitle_tid;
+ int subtitle_stream;
+ int subtitle_stream_changed;
+ AVStream *subtitle_st;
+ PacketQueue subtitleq;
+ SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
+ int subpq_size, subpq_rindex, subpq_windex;
+ SDL_mutex *subpq_mutex;
+ SDL_cond *subpq_cond;
+
+ double frame_timer;
+ double frame_last_pts;
+ double frame_last_delay;
+ double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
+ int video_stream;
+ AVStream *video_st;
+ PacketQueue videoq;
+ double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used)
+ double video_current_pts_drift; ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
+ int64_t video_current_pos; ///<current displayed file pos
+ VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
+ int pictq_size, pictq_rindex, pictq_windex;
+ SDL_mutex *pictq_mutex;
+ SDL_cond *pictq_cond;
+#if !CONFIG_AVFILTER
+ struct SwsContext *img_convert_ctx;
+#endif
+
+ char filename[1024];
+ int width, height, xleft, ytop;
+ int step;
+
+#if CONFIG_AVFILTER
+ AVFilterContext *out_video_filter; ///<the last filter in the video chain
+#endif
+
+ float skip_frames;
+ float skip_frames_index;
+ int refresh;
+} VideoState;
+
+static int opt_help(const char *opt, const char *arg);
+
+/* options specified by the user */
+static AVInputFormat *file_iformat;
+static const char *input_filename;
+static const char *window_title;
+static int fs_screen_width;
+static int fs_screen_height;
+static int screen_width = 0;
+static int screen_height = 0;
+static int audio_disable;
+static int video_disable;
+static int wanted_stream[AVMEDIA_TYPE_NB]={
+ [AVMEDIA_TYPE_AUDIO]=-1,
+ [AVMEDIA_TYPE_VIDEO]=-1,
+ [AVMEDIA_TYPE_SUBTITLE]=-1,
+};
+static int seek_by_bytes=-1;
+static int display_disable;
+static int show_status = 1;
+static int av_sync_type = AV_SYNC_AUDIO_MASTER;
+static int64_t start_time = AV_NOPTS_VALUE;
+static int64_t duration = AV_NOPTS_VALUE;
+static int workaround_bugs = 1;
+static int fast = 0;
+static int genpts = 0;
+static int lowres = 0;
+static int idct = FF_IDCT_AUTO;
+static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
+static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
+static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
+static int error_recognition = FF_ER_CAREFUL;
+static int error_concealment = 3;
+static int decoder_reorder_pts= -1;
+static int autoexit;
+static int exit_on_keydown;
+static int exit_on_mousedown;
+static int loop=1;
+static int framedrop=-1;
+static enum ShowMode show_mode = SHOW_MODE_NONE;
+
+static int rdftspeed=20;
+#if CONFIG_AVFILTER
+static char *vfilters = NULL;
+#endif
+
+/* current context */
+static int is_full_screen;
+static int64_t audio_callback_time;
+
+static AVPacket flush_pkt;
+
+#define FF_ALLOC_EVENT (SDL_USEREVENT)
+#define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
+#define FF_QUIT_EVENT (SDL_USEREVENT + 2)
+
+static SDL_Surface *screen;
+
+void exit_program(int ret)
+{
+ exit(ret);
+}
+
+static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
+{
+ AVPacketList *pkt1;
+
+ /* duplicate the packet */
+ if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
+ return -1;
+
+ pkt1 = av_malloc(sizeof(AVPacketList));
+ if (!pkt1)
+ return -1;
+ pkt1->pkt = *pkt;
+ pkt1->next = NULL;
+
+
+ SDL_LockMutex(q->mutex);
+
+ if (!q->last_pkt)
+
+ q->first_pkt = pkt1;
+ else
+ q->last_pkt->next = pkt1;
+ q->last_pkt = pkt1;
+ q->nb_packets++;
+ q->size += pkt1->pkt.size + sizeof(*pkt1);
+ /* XXX: should duplicate packet data in DV case */
+ SDL_CondSignal(q->cond);
+
+ SDL_UnlockMutex(q->mutex);
+ return 0;
+}
+
+/* packet queue handling */
+static void packet_queue_init(PacketQueue *q)
+{
+ memset(q, 0, sizeof(PacketQueue));
+ q->mutex = SDL_CreateMutex();
+ q->cond = SDL_CreateCond();
+ packet_queue_put(q, &flush_pkt);
+}
+
+static void packet_queue_flush(PacketQueue *q)
+{
+ AVPacketList *pkt, *pkt1;
+
+ SDL_LockMutex(q->mutex);
+ for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
+ pkt1 = pkt->next;
+ av_free_packet(&pkt->pkt);
+ av_freep(&pkt);
+ }
+ q->last_pkt = NULL;
+ q->first_pkt = NULL;
+ q->nb_packets = 0;
+ q->size = 0;
+ SDL_UnlockMutex(q->mutex);
+}
+
+static void packet_queue_end(PacketQueue *q)
+{
+ packet_queue_flush(q);
+ SDL_DestroyMutex(q->mutex);
+ SDL_DestroyCond(q->cond);
+}
+
+static void packet_queue_abort(PacketQueue *q)
+{
+ SDL_LockMutex(q->mutex);
+
+ q->abort_request = 1;
+
+ SDL_CondSignal(q->cond);
+
+ SDL_UnlockMutex(q->mutex);
+}
+
+/* return < 0 if aborted, 0 if no packet and > 0 if packet. */
+static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
+{
+ AVPacketList *pkt1;
+ int ret;
+
+ SDL_LockMutex(q->mutex);
+
+ for(;;) {
+ if (q->abort_request) {
+ ret = -1;
+ break;
+ }
+
+ pkt1 = q->first_pkt;
+ if (pkt1) {
+ q->first_pkt = pkt1->next;
+ if (!q->first_pkt)
+ q->last_pkt = NULL;
+ q->nb_packets--;
+ q->size -= pkt1->pkt.size + sizeof(*pkt1);
+ *pkt = pkt1->pkt;
+ av_free(pkt1);
+ ret = 1;
+ break;
+ } else if (!block) {
+ ret = 0;
+ break;
+ } else {
+ SDL_CondWait(q->cond, q->mutex);
+ }
+ }
+ SDL_UnlockMutex(q->mutex);
+ return ret;
+}
+
+static inline void fill_rectangle(SDL_Surface *screen,
+ int x, int y, int w, int h, int color)
+{
+ SDL_Rect rect;
+ rect.x = x;
+ rect.y = y;
+ rect.w = w;
+ rect.h = h;
+ SDL_FillRect(screen, &rect, color);
+}
+
+#define ALPHA_BLEND(a, oldp, newp, s)\
+((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
+
+#define RGBA_IN(r, g, b, a, s)\
+{\
+ unsigned int v = ((const uint32_t *)(s))[0];\
+ a = (v >> 24) & 0xff;\
+ r = (v >> 16) & 0xff;\
+ g = (v >> 8) & 0xff;\
+ b = v & 0xff;\
+}
+
+#define YUVA_IN(y, u, v, a, s, pal)\
+{\
+ unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
+ a = (val >> 24) & 0xff;\
+ y = (val >> 16) & 0xff;\
+ u = (val >> 8) & 0xff;\
+ v = val & 0xff;\
+}
+
+#define YUVA_OUT(d, y, u, v, a)\
+{\
+ ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
+}
+
+
+#define BPP 1
+
+static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
+{
+ int wrap, wrap3, width2, skip2;
+ int y, u, v, a, u1, v1, a1, w, h;
+ uint8_t *lum, *cb, *cr;
+ const uint8_t *p;
+ const uint32_t *pal;
+ int dstx, dsty, dstw, dsth;
+
+ dstw = av_clip(rect->w, 0, imgw);
+ dsth = av_clip(rect->h, 0, imgh);
+ dstx = av_clip(rect->x, 0, imgw - dstw);
+ dsty = av_clip(rect->y, 0, imgh - dsth);
+ lum = dst->data[0] + dsty * dst->linesize[0];
+ cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
+ cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
+
+ width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
+ skip2 = dstx >> 1;
+ wrap = dst->linesize[0];
+ wrap3 = rect->pict.linesize[0];
+ p = rect->pict.data[0];
+ pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
+
+ if (dsty & 1) {
+ lum += dstx;
+ cb += skip2;
+ cr += skip2;
+
+ if (dstx & 1) {
+ YUVA_IN(y, u, v, a, p, pal);
+ lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
+ cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
+ cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
+ cb++;
+ cr++;
+ lum++;
+ p += BPP;
+ }
+ for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
+ YUVA_IN(y, u, v, a, p, pal);
+ u1 = u;
+ v1 = v;
+ a1 = a;
+ lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
+
+ YUVA_IN(y, u, v, a, p + BPP, pal);
+ u1 += u;
+ v1 += v;
+ a1 += a;
+ lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
+ cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
+ cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
+ cb++;
+ cr++;
+ p += 2 * BPP;
+ lum += 2;
+ }
+ if (w) {
+ YUVA_IN(y, u, v, a, p, pal);
+ lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
+ cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
+ cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
+ p++;
+ lum++;
+ }
+ p += wrap3 - dstw * BPP;
+ lum += wrap - dstw - dstx;
+ cb += dst->linesize[1] - width2 - skip2;
+ cr += dst->linesize[2] - width2 - skip2;
+ }
+ for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
+ lum += dstx;
+ cb += skip2;
+ cr += skip2;
+
+ if (dstx & 1) {
+ YUVA_IN(y, u, v, a, p, pal);
+ u1 = u;
+ v1 = v;
+ a1 = a;
+ lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
+ p += wrap3;
+ lum += wrap;
+ YUVA_IN(y, u, v, a, p, pal);
+ u1 += u;
+ v1 += v;
+ a1 += a;
+ lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
+ cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
+ cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
+ cb++;
+ cr++;
+ p += -wrap3 + BPP;
+ lum += -wrap + 1;
+ }
+ for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
+ YUVA_IN(y, u, v, a, p, pal);
+ u1 = u;
+ v1 = v;
+ a1 = a;
+ lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
+
+ YUVA_IN(y, u, v, a, p + BPP, pal);
+ u1 += u;
+ v1 += v;
+ a1 += a;
+ lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
+ p += wrap3;
+ lum += wrap;
+
+ YUVA_IN(y, u, v, a, p, pal);
+ u1 += u;
+ v1 += v;
+ a1 += a;
+ lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
+
+ YUVA_IN(y, u, v, a, p + BPP, pal);
+ u1 += u;
+ v1 += v;
+ a1 += a;
+ lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
+
+ cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
+ cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
+
+ cb++;
+ cr++;
+ p += -wrap3 + 2 * BPP;
+ lum += -wrap + 2;
+ }
+ if (w) {
+ YUVA_IN(y, u, v, a, p, pal);
+ u1 = u;
+ v1 = v;
+ a1 = a;
+ lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
+ p += wrap3;
+ lum += wrap;
+ YUVA_IN(y, u, v, a, p, pal);
+ u1 += u;
+ v1 += v;
+ a1 += a;
+ lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
+ cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
+ cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
+ cb++;
+ cr++;
+ p += -wrap3 + BPP;
+ lum += -wrap + 1;
+ }
+ p += wrap3 + (wrap3 - dstw * BPP);
+ lum += wrap + (wrap - dstw - dstx);
+ cb += dst->linesize[1] - width2 - skip2;
+ cr += dst->linesize[2] - width2 - skip2;
+ }
+ /* handle odd height */
+ if (h) {
+ lum += dstx;
+ cb += skip2;
+ cr += skip2;
+
+ if (dstx & 1) {
+ YUVA_IN(y, u, v, a, p, pal);
+ lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
+ cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
+ cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
+ cb++;
+ cr++;
+ lum++;
+ p += BPP;
+ }
+ for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
+ YUVA_IN(y, u, v, a, p, pal);
+ u1 = u;
+ v1 = v;
+ a1 = a;
+ lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
+
+ YUVA_IN(y, u, v, a, p + BPP, pal);
+ u1 += u;
+ v1 += v;
+ a1 += a;
+ lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
+ cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
+ cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
+ cb++;
+ cr++;
+ p += 2 * BPP;
+ lum += 2;
+ }
+ if (w) {
+ YUVA_IN(y, u, v, a, p, pal);
+ lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
+ cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
+ cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
+ }
+ }
+}
+
+static void free_subpicture(SubPicture *sp)
+{
+ avsubtitle_free(&sp->sub);
+}
+
+static void video_image_display(VideoState *is)
+{
+ VideoPicture *vp;
+ SubPicture *sp;
+ AVPicture pict;
+ float aspect_ratio;
+ int width, height, x, y;
+ SDL_Rect rect;
+ int i;
+
+ vp = &is->pictq[is->pictq_rindex];
+ if (vp->bmp) {
+#if CONFIG_AVFILTER
+ if (vp->picref->video->sample_aspect_ratio.num == 0)
+ aspect_ratio = 0;
+ else
+ aspect_ratio = av_q2d(vp->picref->video->sample_aspect_ratio);
+#else
+
+ /* XXX: use variable in the frame */
+ if (is->video_st->sample_aspect_ratio.num)
+ aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
+ else if (is->video_st->codec->sample_aspect_ratio.num)
+ aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
+ else
+ aspect_ratio = 0;
+#endif
+ if (aspect_ratio <= 0.0)
+ aspect_ratio = 1.0;
+ aspect_ratio *= (float)vp->width / (float)vp->height;
+
+ if (is->subtitle_st) {
+ if (is->subpq_size > 0) {
+ sp = &is->subpq[is->subpq_rindex];
+
+ if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) {
+ SDL_LockYUVOverlay (vp->bmp);
+
+ pict.data[0] = vp->bmp->pixels[0];
+ pict.data[1] = vp->bmp->pixels[2];
+ pict.data[2] = vp->bmp->pixels[1];
+
+ pict.linesize[0] = vp->bmp->pitches[0];
+ pict.linesize[1] = vp->bmp->pitches[2];
+ pict.linesize[2] = vp->bmp->pitches[1];
+
+ for (i = 0; i < sp->sub.num_rects; i++)
+ blend_subrect(&pict, sp->sub.rects[i],
+ vp->bmp->w, vp->bmp->h);
+
+ SDL_UnlockYUVOverlay (vp->bmp);
+ }
+ }
+ }
+
+
+ /* XXX: we suppose the screen has a 1.0 pixel ratio */
+ height = is->height;
+ width = ((int)rint(height * aspect_ratio)) & ~1;
+ if (width > is->width) {
+ width = is->width;
+ height = ((int)rint(width / aspect_ratio)) & ~1;
+ }
+ x = (is->width - width) / 2;
+ y = (is->height - height) / 2;
+ is->no_background = 0;
+ rect.x = is->xleft + x;
+ rect.y = is->ytop + y;
+ rect.w = FFMAX(width, 1);
+ rect.h = FFMAX(height, 1);
+ SDL_DisplayYUVOverlay(vp->bmp, &rect);
+ }
+}
+
+static inline int compute_mod(int a, int b)
+{
+ return a < 0 ? a%b + b : a%b;
+}
+
+static void video_audio_display(VideoState *s)
+{
+ int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
+ int ch, channels, h, h2, bgcolor, fgcolor;
+ int16_t time_diff;
+ int rdft_bits, nb_freq;
+
+ for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
+ ;
+ nb_freq= 1<<(rdft_bits-1);
+
+ /* compute display index : center on currently output samples */
+ channels = s->audio_st->codec->channels;
+ nb_display_channels = channels;
+ if (!s->paused) {
+ int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq);
+ n = 2 * channels;
+ delay = s->audio_write_buf_size;
+ delay /= n;
+
+ /* to be more precise, we take into account the time spent since
+ the last buffer computation */
+ if (audio_callback_time) {
+ time_diff = av_gettime() - audio_callback_time;
+ delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
+ }
+
+ delay += 2*data_used;
+ if (delay < data_used)
+ delay = data_used;
+
+ i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
+ if (s->show_mode == SHOW_MODE_WAVES) {
+ h= INT_MIN;
+ for(i=0; i<1000; i+=channels){
+ int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
+ int a= s->sample_array[idx];
+ int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
+ int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
+ int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
+ int score= a-d;
+ if(h<score && (b^c)<0){
+ h= score;
+ i_start= idx;
+ }
+ }
+ }
+
+ s->last_i_start = i_start;
+ } else {
+ i_start = s->last_i_start;
+ }
+
+ bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
+ if (s->show_mode == SHOW_MODE_WAVES) {
+ fill_rectangle(screen,
+ s->xleft, s->ytop, s->width, s->height,
+ bgcolor);
+
+ fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
+
+ /* total height for one channel */
+ h = s->height / nb_display_channels;
+ /* graph height / 2 */
+ h2 = (h * 9) / 20;
+ for(ch = 0;ch < nb_display_channels; ch++) {
+ i = i_start + ch;
+ y1 = s->ytop + ch * h + (h / 2); /* position of center line */
+ for(x = 0; x < s->width; x++) {
+ y = (s->sample_array[i] * h2) >> 15;
+ if (y < 0) {
+ y = -y;
+ ys = y1 - y;
+ } else {
+ ys = y1;
+ }
+ fill_rectangle(screen,
+ s->xleft + x, ys, 1, y,
+ fgcolor);
+ i += channels;
+ if (i >= SAMPLE_ARRAY_SIZE)
+ i -= SAMPLE_ARRAY_SIZE;
+ }
+ }
+
+ fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
+
+ for(ch = 1;ch < nb_display_channels; ch++) {
+ y = s->ytop + ch * h;
+ fill_rectangle(screen,
+ s->xleft, y, s->width, 1,
+ fgcolor);
+ }
+ SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
+ }else{
+ nb_display_channels= FFMIN(nb_display_channels, 2);
+ if(rdft_bits != s->rdft_bits){
+ av_rdft_end(s->rdft);
+ av_free(s->rdft_data);
+ s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
+ s->rdft_bits= rdft_bits;
+ s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
+ }
+ {
+ FFTSample *data[2];
+ for(ch = 0;ch < nb_display_channels; ch++) {
+ data[ch] = s->rdft_data + 2*nb_freq*ch;
+ i = i_start + ch;
+ for(x = 0; x < 2*nb_freq; x++) {
+ double w= (x-nb_freq)*(1.0/nb_freq);
+ data[ch][x]= s->sample_array[i]*(1.0-w*w);
+ i += channels;
+ if (i >= SAMPLE_ARRAY_SIZE)
+ i -= SAMPLE_ARRAY_SIZE;
+ }
+ av_rdft_calc(s->rdft, data[ch]);
+ }
+ //least efficient way to do this, we should of course directly access it but its more than fast enough
+ for(y=0; y<s->height; y++){
+ double w= 1/sqrt(nb_freq);
+ int a= sqrt(w*sqrt(data[0][2*y+0]*data[0][2*y+0] + data[0][2*y+1]*data[0][2*y+1]));
+ int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
+ + data[1][2*y+1]*data[1][2*y+1])) : a;
+ a= FFMIN(a,255);
+ b= FFMIN(b,255);
+ fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
+
+ fill_rectangle(screen,
+ s->xpos, s->height-y, 1, 1,
+ fgcolor);
+ }
+ }
+ SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
+ s->xpos++;
+ if(s->xpos >= s->width)
+ s->xpos= s->xleft;
+ }
+}
+
+static void stream_close(VideoState *is)
+{
+ VideoPicture *vp;
+ int i;
+ /* XXX: use a special url_shutdown call to abort parse cleanly */
+ is->abort_request = 1;
+ SDL_WaitThread(is->read_tid, NULL);
+ SDL_WaitThread(is->refresh_tid, NULL);
+
+ /* free all pictures */
+ for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
+ vp = &is->pictq[i];
+#if CONFIG_AVFILTER
+ if (vp->picref) {
+ avfilter_unref_buffer(vp->picref);
+ vp->picref = NULL;
+ }
+#endif
+ if (vp->bmp) {
+ SDL_FreeYUVOverlay(vp->bmp);
+ vp->bmp = NULL;
+ }
+ }
+ SDL_DestroyMutex(is->pictq_mutex);
+ SDL_DestroyCond(is->pictq_cond);
+ SDL_DestroyMutex(is->subpq_mutex);
+ SDL_DestroyCond(is->subpq_cond);
+#if !CONFIG_AVFILTER
+ if (is->img_convert_ctx)
+ sws_freeContext(is->img_convert_ctx);
+#endif
+ av_free(is);
+}
+
+static void do_exit(VideoState *is)
+{
+ if (is) {
+ stream_close(is);
+ }
+ av_lockmgr_register(NULL);
+ uninit_opts();
+#if CONFIG_AVFILTER
+ avfilter_uninit();
+#endif
+ if (show_status)
+ printf("\n");
+ SDL_Quit();
+ av_log(NULL, AV_LOG_QUIET, "%s", "");
+ exit(0);
+}
+
+static int video_open(VideoState *is){
+ int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
+ int w,h;
+
+ if(is_full_screen) flags |= SDL_FULLSCREEN;
+ else flags |= SDL_RESIZABLE;
+
+ if (is_full_screen && fs_screen_width) {
+ w = fs_screen_width;
+ h = fs_screen_height;
+ } else if(!is_full_screen && screen_width){
+ w = screen_width;
+ h = screen_height;
+#if CONFIG_AVFILTER
+ }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
+ w = is->out_video_filter->inputs[0]->w;
+ h = is->out_video_filter->inputs[0]->h;
+#else
+ }else if (is->video_st && is->video_st->codec->width){
+ w = is->video_st->codec->width;
+ h = is->video_st->codec->height;
+#endif
+ } else {
+ w = 640;
+ h = 480;
+ }
+ if(screen && is->width == screen->w && screen->w == w
+ && is->height== screen->h && screen->h == h)
+ return 0;
+
+#ifndef __APPLE__
+ screen = SDL_SetVideoMode(w, h, 0, flags);
+#else
+ /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
+ screen = SDL_SetVideoMode(w, h, 24, flags);
+#endif
+ if (!screen) {
+ fprintf(stderr, "SDL: could not set video mode - exiting\n");
+ do_exit(is);
+ }
+ if (!window_title)
+ window_title = input_filename;
+ SDL_WM_SetCaption(window_title, window_title);
+
+ is->width = screen->w;
+ is->height = screen->h;
+
+ return 0;
+}
+
+/* display the current picture, if any */
+static void video_display(VideoState *is)
+{
+ if(!screen)
+ video_open(is);
+ if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO)
+ video_audio_display(is);
+ else if (is->video_st)
+ video_image_display(is);
+}
+
+static int refresh_thread(void *opaque)
+{
+ VideoState *is= opaque;
+ while(!is->abort_request){
+ SDL_Event event;
+ event.type = FF_REFRESH_EVENT;
+ event.user.data1 = opaque;
+ if(!is->refresh){
+ is->refresh=1;
+ SDL_PushEvent(&event);
+ }
+ //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
+ usleep(is->audio_st && is->show_mode != SHOW_MODE_VIDEO ? rdftspeed*1000 : 5000);
+ }
+ return 0;
+}
+
+/* get the current audio clock value */
+static double get_audio_clock(VideoState *is)
+{
+ if (is->paused) {
+ return is->audio_current_pts;
+ } else {
+ return is->audio_current_pts_drift + av_gettime() / 1000000.0;
+ }
+}
+
+/* get the current video clock value */
+static double get_video_clock(VideoState *is)
+{
+ if (is->paused) {
+ return is->video_current_pts;
+ } else {
+ return is->video_current_pts_drift + av_gettime() / 1000000.0;
+ }
+}
+
+/* get the current external clock value */
+static double get_external_clock(VideoState *is)
+{
+ int64_t ti;
+ ti = av_gettime();
+ return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
+}
+
+/* get the current master clock value */
+static double get_master_clock(VideoState *is)
+{
+ double val;
+
+ if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
+ if (is->video_st)
+ val = get_video_clock(is);
+ else
+ val = get_audio_clock(is);
+ } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
+ if (is->audio_st)
+ val = get_audio_clock(is);
+ else
+ val = get_video_clock(is);
+ } else {
+ val = get_external_clock(is);
+ }
+ return val;
+}
+
+/* seek in the stream */
+static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
+{
+ if (!is->seek_req) {
+ is->seek_pos = pos;
+ is->seek_rel = rel;
+ is->seek_flags &= ~AVSEEK_FLAG_BYTE;
+ if (seek_by_bytes)
+ is->seek_flags |= AVSEEK_FLAG_BYTE;
+ is->seek_req = 1;
+ }
+}
+
+/* pause or resume the video */
+static void stream_toggle_pause(VideoState *is)
+{
+ if (is->paused) {
+ is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
+ if(is->read_pause_return != AVERROR(ENOSYS)){
+ is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
+ }
+ is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
+ }
+ is->paused = !is->paused;
+}
+
+static double compute_target_time(double frame_current_pts, VideoState *is)
+{
+ double delay, sync_threshold, diff;
+
+ /* compute nominal delay */
+ delay = frame_current_pts - is->frame_last_pts;
+ if (delay <= 0 || delay >= 10.0) {
+ /* if incorrect delay, use previous one */
+ delay = is->frame_last_delay;
+ } else {
+ is->frame_last_delay = delay;
+ }
+ is->frame_last_pts = frame_current_pts;
+
+ /* update delay to follow master synchronisation source */
+ if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
+ is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
+ /* if video is slave, we try to correct big delays by
+ duplicating or deleting a frame */
+ diff = get_video_clock(is) - get_master_clock(is);
+
+ /* skip or repeat frame. We take into account the
+ delay to compute the threshold. I still don't know
+ if it is the best guess */
+ sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
+ if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
+ if (diff <= -sync_threshold)
+ delay = 0;
+ else if (diff >= sync_threshold)
+ delay = 2 * delay;
+ }
+ }
+ is->frame_timer += delay;
+
+ av_dlog(NULL, "video: delay=%0.3f pts=%0.3f A-V=%f\n",
+ delay, frame_current_pts, -diff);
+
+ return is->frame_timer;
+}
+
+/* called to display each frame */
+static void video_refresh(void *opaque)
+{
+ VideoState *is = opaque;
+ VideoPicture *vp;
+
+ SubPicture *sp, *sp2;
+
+ if (is->video_st) {
+retry:
+ if (is->pictq_size == 0) {
+ //nothing to do, no picture to display in the que
+ } else {
+ double time= av_gettime()/1000000.0;
+ double next_target;
+ /* dequeue the picture */
+ vp = &is->pictq[is->pictq_rindex];
+
+ if(time < vp->target_clock)
+ return;
+ /* update current video pts */
+ is->video_current_pts = vp->pts;
+ is->video_current_pts_drift = is->video_current_pts - time;
+ is->video_current_pos = vp->pos;
+ if(is->pictq_size > 1){
+ VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
+ assert(nextvp->target_clock >= vp->target_clock);
+ next_target= nextvp->target_clock;
+ }else{
+ next_target= vp->target_clock + vp->duration;
+ }
+ if((framedrop>0 || (framedrop && is->audio_st)) && time > next_target){
+ is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
+ if(is->pictq_size > 1){
+ /* update queue size and signal for next picture */
+ if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
+ is->pictq_rindex = 0;
+
+ SDL_LockMutex(is->pictq_mutex);
+ is->pictq_size--;
+ SDL_CondSignal(is->pictq_cond);
+ SDL_UnlockMutex(is->pictq_mutex);
+ goto retry;
+ }
+ }
+
+ if(is->subtitle_st) {
+ if (is->subtitle_stream_changed) {
+ SDL_LockMutex(is->subpq_mutex);
+
+ while (is->subpq_size) {
+ free_subpicture(&is->subpq[is->subpq_rindex]);
+
+ /* update queue size and signal for next picture */
+ if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
+ is->subpq_rindex = 0;
+
+ is->subpq_size--;
+ }
+ is->subtitle_stream_changed = 0;
+
+ SDL_CondSignal(is->subpq_cond);
+ SDL_UnlockMutex(is->subpq_mutex);
+ } else {
+ if (is->subpq_size > 0) {
+ sp = &is->subpq[is->subpq_rindex];
+
+ if (is->subpq_size > 1)
+ sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
+ else
+ sp2 = NULL;
+
+ if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
+ || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
+ {
+ free_subpicture(sp);
+
+ /* update queue size and signal for next picture */
+ if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
+ is->subpq_rindex = 0;
+
+ SDL_LockMutex(is->subpq_mutex);
+ is->subpq_size--;
+ SDL_CondSignal(is->subpq_cond);
+ SDL_UnlockMutex(is->subpq_mutex);
+ }
+ }
+ }
+ }
+
+ /* display picture */
+ if (!display_disable)
+ video_display(is);
+
+ /* update queue size and signal for next picture */
+ if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
+ is->pictq_rindex = 0;
+
+ SDL_LockMutex(is->pictq_mutex);
+ is->pictq_size--;
+ SDL_CondSignal(is->pictq_cond);
+ SDL_UnlockMutex(is->pictq_mutex);
+ }
+ } else if (is->audio_st) {
+ /* draw the next audio frame */
+
+ /* if only audio stream, then display the audio bars (better
+ than nothing, just to test the implementation */
+
+ /* display picture */
+ if (!display_disable)
+ video_display(is);
+ }
+ if (show_status) {
+ static int64_t last_time;
+ int64_t cur_time;
+ int aqsize, vqsize, sqsize;
+ double av_diff;
+
+ cur_time = av_gettime();
+ if (!last_time || (cur_time - last_time) >= 30000) {
+ aqsize = 0;
+ vqsize = 0;
+ sqsize = 0;
+ if (is->audio_st)
+ aqsize = is->audioq.size;
+ if (is->video_st)
+ vqsize = is->videoq.size;
+ if (is->subtitle_st)
+ sqsize = is->subtitleq.size;
+ av_diff = 0;
+ if (is->audio_st && is->video_st)
+ av_diff = get_audio_clock(is) - get_video_clock(is);
+ printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
+ get_master_clock(is),
+ av_diff,
+ FFMAX(is->skip_frames-1, 0),
+ aqsize / 1024,
+ vqsize / 1024,
+ sqsize,
+ is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0,
+ is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0);
+ fflush(stdout);
+ last_time = cur_time;
+ }
+ }
+}
+
+/* allocate a picture (needs to do that in main thread to avoid
+ potential locking problems */
+static void alloc_picture(void *opaque)
+{
+ VideoState *is = opaque;
+ VideoPicture *vp;
+
+ vp = &is->pictq[is->pictq_windex];
+
+ if (vp->bmp)
+ SDL_FreeYUVOverlay(vp->bmp);
+
+#if CONFIG_AVFILTER
+ if (vp->picref)
+ avfilter_unref_buffer(vp->picref);
+ vp->picref = NULL;
+
+ vp->width = is->out_video_filter->inputs[0]->w;
+ vp->height = is->out_video_filter->inputs[0]->h;
+ vp->pix_fmt = is->out_video_filter->inputs[0]->format;
+#else
+ vp->width = is->video_st->codec->width;
+ vp->height = is->video_st->codec->height;
+ vp->pix_fmt = is->video_st->codec->pix_fmt;
+#endif
+
+ vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
+ SDL_YV12_OVERLAY,
+ screen);
+ if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
+ /* SDL allocates a buffer smaller than requested if the video
+ * overlay hardware is unable to support the requested size. */
+ fprintf(stderr, "Error: the video system does not support an image\n"
+ "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
+ "to reduce the image size.\n", vp->width, vp->height );
+ do_exit(is);
+ }
+
+ SDL_LockMutex(is->pictq_mutex);
+ vp->allocated = 1;
+ SDL_CondSignal(is->pictq_cond);
+ SDL_UnlockMutex(is->pictq_mutex);
+}
+
+static int queue_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
+{
+ VideoPicture *vp;
+ double frame_delay, pts = pts1;
+
+ /* compute the exact PTS for the picture if it is omitted in the stream
+ * pts1 is the dts of the pkt / pts of the frame */
+ if (pts != 0) {
+ /* update video clock with pts, if present */
+ is->video_clock = pts;
+ } else {
+ pts = is->video_clock;
+ }
+ /* update video clock for next frame */
+ frame_delay = av_q2d(is->video_st->codec->time_base);
+ /* for MPEG2, the frame can be repeated, so we update the
+ clock accordingly */
+ frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
+ is->video_clock += frame_delay;
+
+#if defined(DEBUG_SYNC) && 0
+ printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
+ av_get_picture_type_char(src_frame->pict_type), pts, pts1);
+#endif
+
+ /* wait until we have space to put a new picture */
+ SDL_LockMutex(is->pictq_mutex);
+
+ if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
+ is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
+
+ while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
+ !is->videoq.abort_request) {
+ SDL_CondWait(is->pictq_cond, is->pictq_mutex);
+ }
+ SDL_UnlockMutex(is->pictq_mutex);
+
+ if (is->videoq.abort_request)
+ return -1;
+
+ vp = &is->pictq[is->pictq_windex];
+
+ vp->duration = frame_delay;
+
+ /* alloc or resize hardware picture buffer */
+ if (!vp->bmp ||
+#if CONFIG_AVFILTER
+ vp->width != is->out_video_filter->inputs[0]->w ||
+ vp->height != is->out_video_filter->inputs[0]->h) {
+#else
+ vp->width != is->video_st->codec->width ||
+ vp->height != is->video_st->codec->height) {
+#endif
+ SDL_Event event;
+
+ vp->allocated = 0;
+
+ /* the allocation must be done in the main thread to avoid
+ locking problems */
+ event.type = FF_ALLOC_EVENT;
+ event.user.data1 = is;
+ SDL_PushEvent(&event);
+
+ /* wait until the picture is allocated */
+ SDL_LockMutex(is->pictq_mutex);
+ while (!vp->allocated && !is->videoq.abort_request) {
+ SDL_CondWait(is->pictq_cond, is->pictq_mutex);
+ }
+ /* if the queue is aborted, we have to pop the pending ALLOC event or wait for the allocation to complete */
+ if (is->videoq.abort_request && SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_EVENTMASK(FF_ALLOC_EVENT)) != 1) {
+ while (!vp->allocated) {
+ SDL_CondWait(is->pictq_cond, is->pictq_mutex);
+ }
+ }
+ SDL_UnlockMutex(is->pictq_mutex);
+
+ if (is->videoq.abort_request)
+ return -1;
+ }
+
+ /* if the frame is not skipped, then display it */
+ if (vp->bmp) {
+ AVPicture pict;
+#if CONFIG_AVFILTER
+ if(vp->picref)
+ avfilter_unref_buffer(vp->picref);
+ vp->picref = src_frame->opaque;
+#endif
+
+ /* get a pointer on the bitmap */
+ SDL_LockYUVOverlay (vp->bmp);
+
+ memset(&pict,0,sizeof(AVPicture));
+ pict.data[0] = vp->bmp->pixels[0];
+ pict.data[1] = vp->bmp->pixels[2];
+ pict.data[2] = vp->bmp->pixels[1];
+
+ pict.linesize[0] = vp->bmp->pitches[0];
+ pict.linesize[1] = vp->bmp->pitches[2];
+ pict.linesize[2] = vp->bmp->pitches[1];
+
+#if CONFIG_AVFILTER
+ //FIXME use direct rendering
+ av_picture_copy(&pict, (AVPicture *)src_frame,
+ vp->pix_fmt, vp->width, vp->height);
+#else
+ sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
+ is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
+ vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
+ PIX_FMT_YUV420P, sws_flags, NULL, NULL, NULL);
+ if (is->img_convert_ctx == NULL) {
+ fprintf(stderr, "Cannot initialize the conversion context\n");
+ exit(1);
+ }
+ sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
+ 0, vp->height, pict.data, pict.linesize);
+#endif
+ /* update the bitmap content */
+ SDL_UnlockYUVOverlay(vp->bmp);
+
+ vp->pts = pts;
+ vp->pos = pos;
+
+ /* now we can update the picture count */
+ if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
+ is->pictq_windex = 0;
+ SDL_LockMutex(is->pictq_mutex);
+ vp->target_clock= compute_target_time(vp->pts, is);
+
+ is->pictq_size++;
+ SDL_UnlockMutex(is->pictq_mutex);
+ }
+ return 0;
+}
+
+static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
+{
+ int got_picture, i;
+
+ if (packet_queue_get(&is->videoq, pkt, 1) < 0)
+ return -1;
+
+ if (pkt->data == flush_pkt.data) {
+ avcodec_flush_buffers(is->video_st->codec);
+
+ SDL_LockMutex(is->pictq_mutex);
+ //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
+ for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
+ is->pictq[i].target_clock= 0;
+ }
+ while (is->pictq_size && !is->videoq.abort_request) {
+ SDL_CondWait(is->pictq_cond, is->pictq_mutex);
+ }
+ is->video_current_pos = -1;
+ SDL_UnlockMutex(is->pictq_mutex);
+
+ is->frame_last_pts = AV_NOPTS_VALUE;
+ is->frame_last_delay = 0;
+ is->frame_timer = (double)av_gettime() / 1000000.0;
+ is->skip_frames = 1;
+ is->skip_frames_index = 0;
+ return 0;
+ }
+
+ avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt);
+
+ if (got_picture) {
+ if (decoder_reorder_pts == -1) {
+ *pts = frame->best_effort_timestamp;
+ } else if (decoder_reorder_pts) {
+ *pts = frame->pkt_pts;
+ } else {
+ *pts = frame->pkt_dts;
+ }
+
+ if (*pts == AV_NOPTS_VALUE) {
+ *pts = 0;
+ }
+
+ is->skip_frames_index += 1;
+ if(is->skip_frames_index >= is->skip_frames){
+ is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
+ return 1;
+ }
+
+ }
+ return 0;
+}
+
+#if CONFIG_AVFILTER
+typedef struct {
+ VideoState *is;
+ AVFrame *frame;
+ int use_dr1;
+} FilterPriv;
+
+static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
+{
+ AVFilterContext *ctx = codec->opaque;
+ AVFilterBufferRef *ref;
+ int perms = AV_PERM_WRITE;
+ int i, w, h, stride[4];
+ unsigned edge;
+ int pixel_size;
+
+ av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
+
+ if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
+ perms |= AV_PERM_NEG_LINESIZES;
+
+ if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
+ if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
+ if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
+ if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
+ }
+ if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
+
+ w = codec->width;
+ h = codec->height;
+
+ if(av_image_check_size(w, h, 0, codec))
+ return -1;
+
+ avcodec_align_dimensions2(codec, &w, &h, stride);
+ edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
+ w += edge << 1;
+ h += edge << 1;
+
+ if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
+ return -1;
+
+ pixel_size = av_pix_fmt_descriptors[ref->format].comp[0].step_minus1+1;
+ ref->video->w = codec->width;
+ ref->video->h = codec->height;
+ for(i = 0; i < 4; i ++) {
+ unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
+ unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
+
+ if (ref->data[i]) {
+ ref->data[i] += ((edge * pixel_size) >> hshift) + ((edge * ref->linesize[i]) >> vshift);
+ }
+ pic->data[i] = ref->data[i];
+ pic->linesize[i] = ref->linesize[i];
+ }
+ pic->opaque = ref;
+ pic->age = INT_MAX;
+ pic->type = FF_BUFFER_TYPE_USER;
+ pic->reordered_opaque = codec->reordered_opaque;
+ if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
+ else pic->pkt_pts = AV_NOPTS_VALUE;
+ return 0;
+}
+
+static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
+{
+ memset(pic->data, 0, sizeof(pic->data));
+ avfilter_unref_buffer(pic->opaque);
+}
+
+static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
+{
+ AVFilterBufferRef *ref = pic->opaque;
+
+ if (pic->data[0] == NULL) {
+ pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
+ return codec->get_buffer(codec, pic);
+ }
+
+ if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
+ (codec->pix_fmt != ref->format)) {
+ av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
+ return -1;
+ }
+
+ pic->reordered_opaque = codec->reordered_opaque;
+ if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
+ else pic->pkt_pts = AV_NOPTS_VALUE;
+ return 0;
+}
+
+static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
+{
+ FilterPriv *priv = ctx->priv;
+ AVCodecContext *codec;
+ if(!opaque) return -1;
+
+ priv->is = opaque;
+ codec = priv->is->video_st->codec;
+ codec->opaque = ctx;
+ if((codec->codec->capabilities & CODEC_CAP_DR1)
+ ) {
+ av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
+ priv->use_dr1 = 1;
+ codec->get_buffer = input_get_buffer;
+ codec->release_buffer = input_release_buffer;
+ codec->reget_buffer = input_reget_buffer;
+ codec->thread_safe_callbacks = 1;
+ }
+
+ priv->frame = avcodec_alloc_frame();
+
+ return 0;
+}
+
+static void input_uninit(AVFilterContext *ctx)
+{
+ FilterPriv *priv = ctx->priv;
+ av_free(priv->frame);
+}
+
+static int input_request_frame(AVFilterLink *link)
+{
+ FilterPriv *priv = link->src->priv;
+ AVFilterBufferRef *picref;
+ int64_t pts = 0;
+ AVPacket pkt;
+ int ret;
+
+ while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
+ av_free_packet(&pkt);
+ if (ret < 0)
+ return -1;
+
+ if(priv->use_dr1 && priv->frame->opaque) {
+ picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
+ } else {
+ picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
+ av_image_copy(picref->data, picref->linesize,
+ priv->frame->data, priv->frame->linesize,
+ picref->format, link->w, link->h);
+ }
+ av_free_packet(&pkt);
+
+ avfilter_copy_frame_props(picref, priv->frame);
+ picref->pts = pts;
+
+ avfilter_start_frame(link, picref);
+ avfilter_draw_slice(link, 0, link->h, 1);
+ avfilter_end_frame(link);
+
+ return 0;
+}
+
+static int input_query_formats(AVFilterContext *ctx)
+{
+ FilterPriv *priv = ctx->priv;
+ enum PixelFormat pix_fmts[] = {
+ priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
+ };
+
+ avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
+ return 0;
+}
+
+static int input_config_props(AVFilterLink *link)
+{
+ FilterPriv *priv = link->src->priv;
+ AVStream *s = priv->is->video_st;
+
+ link->w = s->codec->width;
+ link->h = s->codec->height;
+ link->sample_aspect_ratio = s->sample_aspect_ratio.num ?
+ s->sample_aspect_ratio : s->codec->sample_aspect_ratio;
+ link->time_base = s->time_base;
+
+ return 0;
+}
+
+static AVFilter input_filter =
+{
+ .name = "ffplay_input",
+
+ .priv_size = sizeof(FilterPriv),
+
+ .init = input_init,
+ .uninit = input_uninit,
+
+ .query_formats = input_query_formats,
+
+ .inputs = (AVFilterPad[]) {{ .name = NULL }},
+ .outputs = (AVFilterPad[]) {{ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .request_frame = input_request_frame,
+ .config_props = input_config_props, },
+ { .name = NULL }},
+};
+
+static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
+{
+ char sws_flags_str[128];
+ int ret;
+ enum PixelFormat pix_fmts[] = { PIX_FMT_YUV420P, PIX_FMT_NONE };
+ AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc();
+ AVFilterContext *filt_src = NULL, *filt_out = NULL;
+ snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
+ graph->scale_sws_opts = av_strdup(sws_flags_str);
+
+ if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
+ NULL, is, graph)) < 0)
+ return ret;
+#if FF_API_OLD_VSINK_API
+ ret = avfilter_graph_create_filter(&filt_out, avfilter_get_by_name("buffersink"), "out",
+ NULL, pix_fmts, graph);
+#else
+ buffersink_params->pixel_fmts = pix_fmts;
+ ret = avfilter_graph_create_filter(&filt_out, avfilter_get_by_name("buffersink"), "out",
+ NULL, buffersink_params, graph);
+#endif
+ av_freep(&buffersink_params);
+ if (ret < 0)
+ return ret;
+
+ if(vfilters) {
+ AVFilterInOut *outputs = avfilter_inout_alloc();
+ AVFilterInOut *inputs = avfilter_inout_alloc();
+
+ outputs->name = av_strdup("in");
+ outputs->filter_ctx = filt_src;
+ outputs->pad_idx = 0;
+ outputs->next = NULL;
+
+ inputs->name = av_strdup("out");
+ inputs->filter_ctx = filt_out;
+ inputs->pad_idx = 0;
+ inputs->next = NULL;
+
+ if ((ret = avfilter_graph_parse(graph, vfilters, &inputs, &outputs, NULL)) < 0)
+ return ret;
+ } else {
+ if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0)
+ return ret;
+ }
+
+ if ((ret = avfilter_graph_config(graph, NULL)) < 0)
+ return ret;
+
+ is->out_video_filter = filt_out;
+
+ return ret;
+}
+
+#endif /* CONFIG_AVFILTER */
+
+static int video_thread(void *arg)
+{
+ VideoState *is = arg;
+ AVFrame *frame= avcodec_alloc_frame();
+ int64_t pts_int = AV_NOPTS_VALUE, pos = -1;
+ double pts;
+ int ret;
+
+#if CONFIG_AVFILTER
+ AVFilterGraph *graph = avfilter_graph_alloc();
+ AVFilterContext *filt_out = NULL;
+ int last_w = is->video_st->codec->width;
+ int last_h = is->video_st->codec->height;
+
+ if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
+ goto the_end;
+ filt_out = is->out_video_filter;
+#endif
+
+ for(;;) {
+#if !CONFIG_AVFILTER
+ AVPacket pkt;
+#else
+ AVFilterBufferRef *picref;
+ AVRational tb = filt_out->inputs[0]->time_base;
+#endif
+ while (is->paused && !is->videoq.abort_request)
+ SDL_Delay(10);
+#if CONFIG_AVFILTER
+ if ( last_w != is->video_st->codec->width
+ || last_h != is->video_st->codec->height) {
+ av_log(NULL, AV_LOG_INFO, "Frame changed from size:%dx%d to size:%dx%d\n",
+ last_w, last_h, is->video_st->codec->width, is->video_st->codec->height);
+ avfilter_graph_free(&graph);
+ graph = avfilter_graph_alloc();
+ if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
+ goto the_end;
+ filt_out = is->out_video_filter;
+ last_w = is->video_st->codec->width;
+ last_h = is->video_st->codec->height;
+ }
+ ret = av_buffersink_get_buffer_ref(filt_out, &picref, 0);
+ if (picref) {
+ avfilter_fill_frame_from_video_buffer_ref(frame, picref);
+ pts_int = picref->pts;
+ pos = picref->pos;
+ frame->opaque = picref;
+ }
+
+ if (av_cmp_q(tb, is->video_st->time_base)) {
+ av_unused int64_t pts1 = pts_int;
+ pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
+ av_dlog(NULL, "video_thread(): "
+ "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
+ tb.num, tb.den, pts1,
+ is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
+ }
+#else
+ ret = get_video_frame(is, frame, &pts_int, &pkt);
+ pos = pkt.pos;
+ av_free_packet(&pkt);
+#endif
+
+ if (ret < 0) goto the_end;
+
+#if CONFIG_AVFILTER
+ if (!picref)
+ continue;
+#endif
+
+ pts = pts_int*av_q2d(is->video_st->time_base);
+
+ ret = queue_picture(is, frame, pts, pos);
+
+ if (ret < 0)
+ goto the_end;
+
+ if (is->step)
+ stream_toggle_pause(is);
+ }
+ the_end:
+#if CONFIG_AVFILTER
+ avfilter_graph_free(&graph);
+#endif
+ av_free(frame);
+ return 0;
+}
+
+static int subtitle_thread(void *arg)
+{
+ VideoState *is = arg;
+ SubPicture *sp;
+ AVPacket pkt1, *pkt = &pkt1;
+ int got_subtitle;
+ double pts;
+ int i, j;
+ int r, g, b, y, u, v, a;
+
+ for(;;) {
+ while (is->paused && !is->subtitleq.abort_request) {
+ SDL_Delay(10);
+ }
+ if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
+ break;
+
+ if(pkt->data == flush_pkt.data){
+ avcodec_flush_buffers(is->subtitle_st->codec);
+ continue;
+ }
+ SDL_LockMutex(is->subpq_mutex);
+ while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
+ !is->subtitleq.abort_request) {
+ SDL_CondWait(is->subpq_cond, is->subpq_mutex);
+ }
+ SDL_UnlockMutex(is->subpq_mutex);
+
+ if (is->subtitleq.abort_request)
+ return 0;
+
+ sp = &is->subpq[is->subpq_windex];
+
+ /* NOTE: ipts is the PTS of the _first_ picture beginning in
+ this packet, if any */
+ pts = 0;
+ if (pkt->pts != AV_NOPTS_VALUE)
+ pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
+
+ avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub,
+ &got_subtitle, pkt);
+
+ if (got_subtitle && sp->sub.format == 0) {
+ sp->pts = pts;
+
+ for (i = 0; i < sp->sub.num_rects; i++)
+ {
+ for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
+ {
+ RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
+ y = RGB_TO_Y_CCIR(r, g, b);
+ u = RGB_TO_U_CCIR(r, g, b, 0);
+ v = RGB_TO_V_CCIR(r, g, b, 0);
+ YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
+ }
+ }
+
+ /* now we can update the picture count */
+ if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
+ is->subpq_windex = 0;
+ SDL_LockMutex(is->subpq_mutex);
+ is->subpq_size++;
+ SDL_UnlockMutex(is->subpq_mutex);
+ }
+ av_free_packet(pkt);
+ }
+ return 0;
+}
+
+/* copy samples for viewing in editor window */
+static void update_sample_display(VideoState *is, short *samples, int samples_size)
+{
+ int size, len;
+
+ size = samples_size / sizeof(short);
+ while (size > 0) {
+ len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
+ if (len > size)
+ len = size;
+ memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
+ samples += len;
+ is->sample_array_index += len;
+ if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
+ is->sample_array_index = 0;
+ size -= len;
+ }
+}
+
+/* return the new audio buffer size (samples can be added or deleted
+ to get better sync if video or external master clock) */
+static int synchronize_audio(VideoState *is, short *samples,
+ int samples_size1, double pts)
+{
+ int n, samples_size;
+ double ref_clock;
+
+ n = 2 * is->audio_st->codec->channels;
+ samples_size = samples_size1;
+
+ /* if not master, then we try to remove or add samples to correct the clock */
+ if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
+ is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
+ double diff, avg_diff;
+ int wanted_size, min_size, max_size, nb_samples;
+
+ ref_clock = get_master_clock(is);
+ diff = get_audio_clock(is) - ref_clock;
+
+ if (diff < AV_NOSYNC_THRESHOLD) {
+ is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
+ if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
+ /* not enough measures to have a correct estimate */
+ is->audio_diff_avg_count++;
+ } else {
+ /* estimate the A-V difference */
+ avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
+
+ if (fabs(avg_diff) >= is->audio_diff_threshold) {
+ wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
+ nb_samples = samples_size / n;
+
+ min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
+ max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
+ if (wanted_size < min_size)
+ wanted_size = min_size;
+ else if (wanted_size > max_size)
+ wanted_size = max_size;
+
+ /* add or remove samples to correction the synchro */
+ if (wanted_size < samples_size) {
+ /* remove samples */
+ samples_size = wanted_size;
+ } else if (wanted_size > samples_size) {
+ uint8_t *samples_end, *q;
+ int nb;
+
+ /* add samples */
+ nb = (samples_size - wanted_size);
+ samples_end = (uint8_t *)samples + samples_size - n;
+ q = samples_end + n;
+ while (nb > 0) {
+ memcpy(q, samples_end, n);
+ q += n;
+ nb -= n;
+ }
+ samples_size = wanted_size;
+ }
+ }
+ av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
+ diff, avg_diff, samples_size - samples_size1,
+ is->audio_clock, is->video_clock, is->audio_diff_threshold);
+ }
+ } else {
+ /* too big difference : may be initial PTS errors, so
+ reset A-V filter */
+ is->audio_diff_avg_count = 0;
+ is->audio_diff_cum = 0;
+ }
+ }
+
+ return samples_size;
+}
+
+/* decode one audio frame and returns its uncompressed size */
+static int audio_decode_frame(VideoState *is, double *pts_ptr)
+{
+ AVPacket *pkt_temp = &is->audio_pkt_temp;
+ AVPacket *pkt = &is->audio_pkt;
+ AVCodecContext *dec= is->audio_st->codec;
+ int n, len1, data_size;
+ double pts;
++ int new_packet = 0;
++ int flush_complete = 0;
+
+ for(;;) {
+ /* NOTE: the audio packet can contain several frames */
- if (data_size <= 0)
++ while (pkt_temp->size > 0 || (!pkt_temp->data && new_packet)) {
++ if (flush_complete)
++ break;
++ new_packet = 0;
+ data_size = sizeof(is->audio_buf1);
+ len1 = avcodec_decode_audio3(dec,
+ (int16_t *)is->audio_buf1, &data_size,
+ pkt_temp);
+ if (len1 < 0) {
+ /* if error, we skip the frame */
+ pkt_temp->size = 0;
+ break;
+ }
+
+ pkt_temp->data += len1;
+ pkt_temp->size -= len1;
- if (packet_queue_get(&is->audioq, pkt, 1) < 0)
++
++ if (data_size <= 0) {
++ /* stop sending empty packets if the decoder is finished */
++ if (!pkt_temp->data && dec->codec->capabilities & CODEC_CAP_DELAY)
++ flush_complete = 1;
+ continue;
++ }
+
+ if (dec->sample_fmt != is->audio_src_fmt) {
+ if (is->reformat_ctx)
+ av_audio_convert_free(is->reformat_ctx);
+ is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
+ dec->sample_fmt, 1, NULL, 0);
+ if (!is->reformat_ctx) {
+ fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
+ av_get_sample_fmt_name(dec->sample_fmt),
+ av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
+ break;
+ }
+ is->audio_src_fmt= dec->sample_fmt;
+ }
+
+ if (is->reformat_ctx) {
+ const void *ibuf[6]= {is->audio_buf1};
+ void *obuf[6]= {is->audio_buf2};
+ int istride[6]= {av_get_bytes_per_sample(dec->sample_fmt)};
+ int ostride[6]= {2};
+ int len= data_size/istride[0];
+ if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
+ printf("av_audio_convert() failed\n");
+ break;
+ }
+ is->audio_buf= is->audio_buf2;
+ /* FIXME: existing code assume that data_size equals framesize*channels*2
+ remove this legacy cruft */
+ data_size= len*2;
+ }else{
+ is->audio_buf= is->audio_buf1;
+ }
+
+ /* if no pts, then compute it */
+ pts = is->audio_clock;
+ *pts_ptr = pts;
+ n = 2 * dec->channels;
+ is->audio_clock += (double)data_size /
+ (double)(n * dec->sample_rate);
+#ifdef DEBUG
+ {
+ static double last_clock;
+ printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
+ is->audio_clock - last_clock,
+ is->audio_clock, pts);
+ last_clock = is->audio_clock;
+ }
+#endif
+ return data_size;
+ }
+
+ /* free the current packet */
+ if (pkt->data)
+ av_free_packet(pkt);
+
+ if (is->paused || is->audioq.abort_request) {
+ return -1;
+ }
+
+ /* read next packet */
- if(pkt->data == flush_pkt.data){
++ if ((new_packet = packet_queue_get(&is->audioq, pkt, 1)) < 0)
+ return -1;
- continue;
- }
++
++ if (pkt->data == flush_pkt.data)
+ avcodec_flush_buffers(dec);
+
+ pkt_temp->data = pkt->data;
+ pkt_temp->size = pkt->size;
+
+ /* if update the audio clock with the pts */
+ if (pkt->pts != AV_NOPTS_VALUE) {
+ is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
+ }
+ }
+}
+
+/* prepare a new audio buffer */
+static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
+{
+ VideoState *is = opaque;
+ int audio_size, len1;
+ int bytes_per_sec;
+ double pts;
+
+ audio_callback_time = av_gettime();
+
+ while (len > 0) {
+ if (is->audio_buf_index >= is->audio_buf_size) {
+ audio_size = audio_decode_frame(is, &pts);
+ if (audio_size < 0) {
+ /* if error, just output silence */
+ is->audio_buf = is->audio_buf1;
+ is->audio_buf_size = 1024;
+ memset(is->audio_buf, 0, is->audio_buf_size);
+ } else {
+ if (is->show_mode != SHOW_MODE_VIDEO)
+ update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
+ audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
+ pts);
+ is->audio_buf_size = audio_size;
+ }
+ is->audio_buf_index = 0;
+ }
+ len1 = is->audio_buf_size - is->audio_buf_index;
+ if (len1 > len)
+ len1 = len;
+ memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
+ len -= len1;
+ stream += len1;
+ is->audio_buf_index += len1;
+ }
+ bytes_per_sec = is->audio_st->codec->sample_rate *
+ 2 * is->audio_st->codec->channels;
+ is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index;
+ /* Let's assume the audio driver that is used by SDL has two periods. */
+ is->audio_current_pts = is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / bytes_per_sec;
+ is->audio_current_pts_drift = is->audio_current_pts - audio_callback_time / 1000000.0;
+}
+
+/* open a given stream. Return 0 if OK */
+static int stream_component_open(VideoState *is, int stream_index)
+{
+ AVFormatContext *ic = is->ic;
+ AVCodecContext *avctx;
+ AVCodec *codec;
+ SDL_AudioSpec wanted_spec, spec;
+ AVDictionary *opts;
+ AVDictionaryEntry *t = NULL;
+
+ if (stream_index < 0 || stream_index >= ic->nb_streams)
+ return -1;
+ avctx = ic->streams[stream_index]->codec;
+
+ opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index]);
+
+ /* prepare audio output */
+ if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
+ if (avctx->channels > 0) {
+ avctx->request_channels = FFMIN(2, avctx->channels);
+ } else {
+ avctx->request_channels = 2;
+ }
+ }
+
+ codec = avcodec_find_decoder(avctx->codec_id);
+ if (!codec)
+ return -1;
+
+ avctx->workaround_bugs = workaround_bugs;
+ avctx->lowres = lowres;
+ if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
+ avctx->idct_algo= idct;
+ if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
+ avctx->skip_frame= skip_frame;
+ avctx->skip_idct= skip_idct;
+ avctx->skip_loop_filter= skip_loop_filter;
+ avctx->error_recognition= error_recognition;
+ avctx->error_concealment= error_concealment;
+
+ if(codec->capabilities & CODEC_CAP_DR1)
+ avctx->flags |= CODEC_FLAG_EMU_EDGE;
+
+ if (!codec ||
+ avcodec_open2(avctx, codec, &opts) < 0)
+ return -1;
+ if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
+ av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
+ return AVERROR_OPTION_NOT_FOUND;
+ }
+
+ /* prepare audio output */
+ if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
+ if(avctx->sample_rate <= 0 || avctx->channels <= 0){
+ fprintf(stderr, "Invalid sample rate or channel count\n");
+ return -1;
+ }
+ wanted_spec.freq = avctx->sample_rate;
+ wanted_spec.format = AUDIO_S16SYS;
+ wanted_spec.channels = avctx->channels;
+ wanted_spec.silence = 0;
+ wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
+ wanted_spec.callback = sdl_audio_callback;
+ wanted_spec.userdata = is;
+ if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
+ fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
+ return -1;
+ }
+ is->audio_hw_buf_size = spec.size;
+ is->audio_src_fmt= AV_SAMPLE_FMT_S16;
+ }
+
+ ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
+ switch(avctx->codec_type) {
+ case AVMEDIA_TYPE_AUDIO:
+ is->audio_stream = stream_index;
+ is->audio_st = ic->streams[stream_index];
+ is->audio_buf_size = 0;
+ is->audio_buf_index = 0;
+
+ /* init averaging filter */
+ is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
+ is->audio_diff_avg_count = 0;
+ /* since we do not have a precise anough audio fifo fullness,
+ we correct audio sync only if larger than this threshold */
+ is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
+
+ memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
+ packet_queue_init(&is->audioq);
+ SDL_PauseAudio(0);
+ break;
+ case AVMEDIA_TYPE_VIDEO:
+ is->video_stream = stream_index;
+ is->video_st = ic->streams[stream_index];
+
+ packet_queue_init(&is->videoq);
+ is->video_tid = SDL_CreateThread(video_thread, is);
+ break;
+ case AVMEDIA_TYPE_SUBTITLE:
+ is->subtitle_stream = stream_index;
+ is->subtitle_st = ic->streams[stream_index];
+ packet_queue_init(&is->subtitleq);
+
+ is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
+ break;
+ default:
+ break;
+ }
+ return 0;
+}
+
+static void stream_component_close(VideoState *is, int stream_index)
+{
+ AVFormatContext *ic = is->ic;
+ AVCodecContext *avctx;
+
+ if (stream_index < 0 || stream_index >= ic->nb_streams)
+ return;
+ avctx = ic->streams[stream_index]->codec;
+
+ switch(avctx->codec_type) {
+ case AVMEDIA_TYPE_AUDIO:
+ packet_queue_abort(&is->audioq);
+
+ SDL_CloseAudio();
+
+ packet_queue_end(&is->audioq);
+ if (is->reformat_ctx)
+ av_audio_convert_free(is->reformat_ctx);
+ is->reformat_ctx = NULL;
+ break;
+ case AVMEDIA_TYPE_VIDEO:
+ packet_queue_abort(&is->videoq);
+
+ /* note: we also signal this mutex to make sure we deblock the
+ video thread in all cases */
+ SDL_LockMutex(is->pictq_mutex);
+ SDL_CondSignal(is->pictq_cond);
+ SDL_UnlockMutex(is->pictq_mutex);
+
+ SDL_WaitThread(is->video_tid, NULL);
+
+ packet_queue_end(&is->videoq);
+ break;
+ case AVMEDIA_TYPE_SUBTITLE:
+ packet_queue_abort(&is->subtitleq);
+
+ /* note: we also signal this mutex to make sure we deblock the
+ video thread in all cases */
+ SDL_LockMutex(is->subpq_mutex);
+ is->subtitle_stream_changed = 1;
+
+ SDL_CondSignal(is->subpq_cond);
+ SDL_UnlockMutex(is->subpq_mutex);
+
+ SDL_WaitThread(is->subtitle_tid, NULL);
+
+ packet_queue_end(&is->subtitleq);
+ break;
+ default:
+ break;
+ }
+
+ ic->streams[stream_index]->discard = AVDISCARD_ALL;
+ avcodec_close(avctx);
+ switch(avctx->codec_type) {
+ case AVMEDIA_TYPE_AUDIO:
+ is->audio_st = NULL;
+ is->audio_stream = -1;
+ break;
+ case AVMEDIA_TYPE_VIDEO:
+ is->video_st = NULL;
+ is->video_stream = -1;
+ break;
+ case AVMEDIA_TYPE_SUBTITLE:
+ is->subtitle_st = NULL;
+ is->subtitle_stream = -1;
+ break;
+ default:
+ break;
+ }
+}
+
+/* since we have only one decoding thread, we can use a global
+ variable instead of a thread local variable */
+static VideoState *global_video_state;
+
+static int decode_interrupt_cb(void)
+{
+ return (global_video_state && global_video_state->abort_request);
+}
+
+/* this thread gets the stream from the disk or the network */
+static int read_thread(void *arg)
+{
+ VideoState *is = arg;
+ AVFormatContext *ic = NULL;
+ int err, i, ret;
+ int st_index[AVMEDIA_TYPE_NB];
+ AVPacket pkt1, *pkt = &pkt1;
+ int eof=0;
+ int pkt_in_play_range = 0;
+ AVDictionaryEntry *t;
+ AVDictionary **opts;
+ int orig_nb_streams;
+
+ memset(st_index, -1, sizeof(st_index));
+ is->video_stream = -1;
+ is->audio_stream = -1;
+ is->subtitle_stream = -1;
+
+ global_video_state = is;
+ avio_set_interrupt_cb(decode_interrupt_cb);
+
+ err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
+ if (err < 0) {
+ print_error(is->filename, err);
+ ret = -1;
+ goto fail;
+ }
+ if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
+ av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
+ ret = AVERROR_OPTION_NOT_FOUND;
+ goto fail;
+ }
+ is->ic = ic;
+
+ if(genpts)
+ ic->flags |= AVFMT_FLAG_GENPTS;
+
+ opts = setup_find_stream_info_opts(ic, codec_opts);
+ orig_nb_streams = ic->nb_streams;
+
+ err = avformat_find_stream_info(ic, opts);
+ if (err < 0) {
+ fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
+ ret = -1;
+ goto fail;
+ }
+ for (i = 0; i < orig_nb_streams; i++)
+ av_dict_free(&opts[i]);
+ av_freep(&opts);
+
+ if(ic->pb)
+ ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
+
+ if(seek_by_bytes<0)
+ seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
+
+ /* if seeking requested, we execute it */
+ if (start_time != AV_NOPTS_VALUE) {
+ int64_t timestamp;
+
+ timestamp = start_time;
+ /* add the stream start time */
+ if (ic->start_time != AV_NOPTS_VALUE)
+ timestamp += ic->start_time;
+ ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
+ if (ret < 0) {
+ fprintf(stderr, "%s: could not seek to position %0.3f\n",
+ is->filename, (double)timestamp / AV_TIME_BASE);
+ }
+ }
+
+ for (i = 0; i < ic->nb_streams; i++)
+ ic->streams[i]->discard = AVDISCARD_ALL;
+ if (!video_disable)
+ st_index[AVMEDIA_TYPE_VIDEO] =
+ av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
+ wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
+ if (!audio_disable)
+ st_index[AVMEDIA_TYPE_AUDIO] =
+ av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
+ wanted_stream[AVMEDIA_TYPE_AUDIO],
+ st_index[AVMEDIA_TYPE_VIDEO],
+ NULL, 0);
+ if (!video_disable)
+ st_index[AVMEDIA_TYPE_SUBTITLE] =
+ av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
+ wanted_stream[AVMEDIA_TYPE_SUBTITLE],
+ (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
+ st_index[AVMEDIA_TYPE_AUDIO] :
+ st_index[AVMEDIA_TYPE_VIDEO]),
+ NULL, 0);
+ if (show_status) {
+ av_dump_format(ic, 0, is->filename, 0);
+ }
+
+ is->show_mode = show_mode;
+
+ /* open the streams */
+ if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
+ stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
+ }
+
+ ret=-1;
+ if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
+ ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
+ }
+ is->refresh_tid = SDL_CreateThread(refresh_thread, is);
+ if (is->show_mode == SHOW_MODE_NONE)
+ is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT;
+
+ if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
+ stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
+ }
+
+ if (is->video_stream < 0 && is->audio_stream < 0) {
+ fprintf(stderr, "%s: could not open codecs\n", is->filename);
+ ret = -1;
+ goto fail;
+ }
+
+ for(;;) {
+ if (is->abort_request)
+ break;
+ if (is->paused != is->last_paused) {
+ is->last_paused = is->paused;
+ if (is->paused)
+ is->read_pause_return= av_read_pause(ic);
+ else
+ av_read_play(ic);
+ }
+#if CONFIG_RTSP_DEMUXER
+ if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
+ /* wait 10 ms to avoid trying to get another packet */
+ /* XXX: horrible */
+ SDL_Delay(10);
+ continue;
+ }
+#endif
+ if (is->seek_req) {
+ int64_t seek_target= is->seek_pos;
+ int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
+ int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
+//FIXME the +-2 is due to rounding being not done in the correct direction in generation
+// of the seek_pos/seek_rel variables
+
+ ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
+ if (ret < 0) {
+ fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
+ }else{
+ if (is->audio_stream >= 0) {
+ packet_queue_flush(&is->audioq);
+ packet_queue_put(&is->audioq, &flush_pkt);
+ }
+ if (is->subtitle_stream >= 0) {
+ packet_queue_flush(&is->subtitleq);
+ packet_queue_put(&is->subtitleq, &flush_pkt);
+ }
+ if (is->video_stream >= 0) {
+ packet_queue_flush(&is->videoq);
+ packet_queue_put(&is->videoq, &flush_pkt);
+ }
+ }
+ is->seek_req = 0;
+ eof= 0;
+ }
+
+ /* if the queue are full, no need to read more */
+ if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
+ || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0)
+ && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0)
+ && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
+ /* wait 10 ms */
+ SDL_Delay(10);
+ continue;
+ }
+ if(eof) {
+ if(is->video_stream >= 0){
+ av_init_packet(pkt);
+ pkt->data=NULL;
+ pkt->size=0;
+ pkt->stream_index= is->video_stream;
+ packet_queue_put(&is->videoq, pkt);
++ }
++ if (is->audio_stream >= 0 &&
++ is->audio_st->codec->codec->capabilities & CODEC_CAP_DELAY) {
++ av_init_packet(pkt);
++ pkt->data = NULL;
++ pkt->size = 0;
++ pkt->stream_index = is->audio_stream;
++ packet_queue_put(&is->audioq, pkt);
+ }
+ SDL_Delay(10);
+ if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
+ if(loop!=1 && (!loop || --loop)){
+ stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
+ }else if(autoexit){
+ ret=AVERROR_EOF;
+ goto fail;
+ }
+ }
+ eof=0;
+ continue;
+ }
+ ret = av_read_frame(ic, pkt);
+ if (ret < 0) {
+ if (ret == AVERROR_EOF || url_feof(ic->pb))
+ eof=1;
+ if (ic->pb && ic->pb->error)
+ break;
+ SDL_Delay(100); /* wait for user event */
+ continue;
+ }
+ /* check if packet is in play range specified by user, then queue, otherwise discard */
+ pkt_in_play_range = duration == AV_NOPTS_VALUE ||
+ (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
+ av_q2d(ic->streams[pkt->stream_index]->time_base) -
+ (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
+ <= ((double)duration/1000000);
+ if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
+ packet_queue_put(&is->audioq, pkt);
+ } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
+ packet_queue_put(&is->videoq, pkt);
+ } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
+ packet_queue_put(&is->subtitleq, pkt);
+ } else {
+ av_free_packet(pkt);
+ }
+ }
+ /* wait until the end */
+ while (!is->abort_request) {
+ SDL_Delay(100);
+ }
+
+ ret = 0;
+ fail:
+ /* disable interrupting */
+ global_video_state = NULL;
+
+ /* close each stream */
+ if (is->audio_stream >= 0)
+ stream_component_close(is, is->audio_stream);
+ if (is->video_stream >= 0)
+ stream_component_close(is, is->video_stream);
+ if (is->subtitle_stream >= 0)
+ stream_component_close(is, is->subtitle_stream);
+ if (is->ic) {
+ av_close_input_file(is->ic);
+ is->ic = NULL; /* safety */
+ }
+ avio_set_interrupt_cb(NULL);
+
+ if (ret != 0) {
+ SDL_Event event;
+
+ event.type = FF_QUIT_EVENT;
+ event.user.data1 = is;
+ SDL_PushEvent(&event);
+ }
+ return 0;
+}
+
+static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
+{
+ VideoState *is;
+
+ is = av_mallocz(sizeof(VideoState));
+ if (!is)
+ return NULL;
+ av_strlcpy(is->filename, filename, sizeof(is->filename));
+ is->iformat = iformat;
+ is->ytop = 0;
+ is->xleft = 0;
+
+ /* start video display */
+ is->pictq_mutex = SDL_CreateMutex();
+ is->pictq_cond = SDL_CreateCond();
+
+ is->subpq_mutex = SDL_CreateMutex();
+ is->subpq_cond = SDL_CreateCond();
+
+ is->av_sync_type = av_sync_type;
+ is->read_tid = SDL_CreateThread(read_thread, is);
+ if (!is->read_tid) {
+ av_free(is);
+ return NULL;
+ }
+ return is;
+}
+
+static void stream_cycle_channel(VideoState *is, int codec_type)
+{
+ AVFormatContext *ic = is->ic;
+ int start_index, stream_index;
+ AVStream *st;
+
+ if (codec_type == AVMEDIA_TYPE_VIDEO)
+ start_index = is->video_stream;
+ else if (codec_type == AVMEDIA_TYPE_AUDIO)
+ start_index = is->audio_stream;
+ else
+ start_index = is->subtitle_stream;
+ if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
+ return;
+ stream_index = start_index;
+ for(;;) {
+ if (++stream_index >= is->ic->nb_streams)
+ {
+ if (codec_type == AVMEDIA_TYPE_SUBTITLE)
+ {
+ stream_index = -1;
+ goto the_end;
+ } else
+ stream_index = 0;
+ }
+ if (stream_index == start_index)
+ return;
+ st = ic->streams[stream_index];
+ if (st->codec->codec_type == codec_type) {
+ /* check that parameters are OK */
+ switch(codec_type) {
+ case AVMEDIA_TYPE_AUDIO:
+ if (st->codec->sample_rate != 0 &&
+ st->codec->channels != 0)
+ goto the_end;
+ break;
+ case AVMEDIA_TYPE_VIDEO:
+ case AVMEDIA_TYPE_SUBTITLE:
+ goto the_end;
+ default:
+ break;
+ }
+ }
+ }
+ the_end:
+ stream_component_close(is, start_index);
+ stream_component_open(is, stream_index);
+}
+
+
+static void toggle_full_screen(VideoState *is)
+{
+ is_full_screen = !is_full_screen;
+ video_open(is);
+}
+
+static void toggle_pause(VideoState *is)
+{
+ stream_toggle_pause(is);
+ is->step = 0;
+}
+
+static void step_to_next_frame(VideoState *is)
+{
+ /* if the stream is paused unpause it, then step */
+ if (is->paused)
+ stream_toggle_pause(is);
+ is->step = 1;
+}
+
+static void toggle_audio_display(VideoState *is)
+{
+ int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
+ is->show_mode = (is->show_mode + 1) % SHOW_MODE_NB;
+ fill_rectangle(screen,
+ is->xleft, is->ytop, is->width, is->height,
+ bgcolor);
+ SDL_UpdateRect(screen, is->xleft, is->ytop, is->width, is->height);
+}
+
+/* handle an event sent by the GUI */
+static void event_loop(VideoState *cur_stream)
+{
+ SDL_Event event;
+ double incr, pos, frac;
+
+ for(;;) {
+ double x;
+ SDL_WaitEvent(&event);
+ switch(event.type) {
+ case SDL_KEYDOWN:
+ if (exit_on_keydown) {
+ do_exit(cur_stream);
+ break;
+ }
+ switch(event.key.keysym.sym) {
+ case SDLK_ESCAPE:
+ case SDLK_q:
+ do_exit(cur_stream);
+ break;
+ case SDLK_f:
+ toggle_full_screen(cur_stream);
+ break;
+ case SDLK_p:
+ case SDLK_SPACE:
+ toggle_pause(cur_stream);
+ break;
+ case SDLK_s: //S: Step to next frame
+ step_to_next_frame(cur_stream);
+ break;
+ case SDLK_a:
+ stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
+ break;
+ case SDLK_v:
+ stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
+ break;
+ case SDLK_t:
+ stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
+ break;
+ case SDLK_w:
+ toggle_audio_display(cur_stream);
+ break;
+ case SDLK_LEFT:
+ incr = -10.0;
+ goto do_seek;
+ case SDLK_RIGHT:
+ incr = 10.0;
+ goto do_seek;
+ case SDLK_UP:
+ incr = 60.0;
+ goto do_seek;
+ case SDLK_DOWN:
+ incr = -60.0;
+ do_seek:
+ if (seek_by_bytes) {
+ if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
+ pos= cur_stream->video_current_pos;
+ }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
+ pos= cur_stream->audio_pkt.pos;
+ }else
+ pos = avio_tell(cur_stream->ic->pb);
+ if (cur_stream->ic->bit_rate)
+ incr *= cur_stream->ic->bit_rate / 8.0;
+ else
+ incr *= 180000.0;
+ pos += incr;
+ stream_seek(cur_stream, pos, incr, 1);
+ } else {
+ pos = get_master_clock(cur_stream);
+ pos += incr;
+ stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
+ }
+ break;
+ default:
+ break;
+ }
+ break;
+ case SDL_MOUSEBUTTONDOWN:
+ if (exit_on_mousedown) {
+ do_exit(cur_stream);
+ break;
+ }
+ case SDL_MOUSEMOTION:
+ if(event.type ==SDL_MOUSEBUTTONDOWN){
+ x= event.button.x;
+ }else{
+ if(event.motion.state != SDL_PRESSED)
+ break;
+ x= event.motion.x;
+ }
+ if(seek_by_bytes || cur_stream->ic->duration<=0){
+ uint64_t size= avio_size(cur_stream->ic->pb);
+ stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
+ }else{
+ int64_t ts;
+ int ns, hh, mm, ss;
+ int tns, thh, tmm, tss;
+ tns = cur_stream->ic->duration/1000000LL;
+ thh = tns/3600;
+ tmm = (tns%3600)/60;
+ tss = (tns%60);
+ frac = x/cur_stream->width;
+ ns = frac*tns;
+ hh = ns/3600;
+ mm = (ns%3600)/60;
+ ss = (ns%60);
+ fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
+ hh, mm, ss, thh, tmm, tss);
+ ts = frac*cur_stream->ic->duration;
+ if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
+ ts += cur_stream->ic->start_time;
+ stream_seek(cur_stream, ts, 0, 0);
+ }
+ break;
+ case SDL_VIDEORESIZE:
+ screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
+ SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
+ screen_width = cur_stream->width = event.resize.w;
+ screen_height= cur_stream->height= event.resize.h;
+ break;
+ case SDL_QUIT:
+ case FF_QUIT_EVENT:
+ do_exit(cur_stream);
+ break;
+ case FF_ALLOC_EVENT:
+ video_open(event.user.data1);
+ alloc_picture(event.user.data1);
+ break;
+ case FF_REFRESH_EVENT:
+ video_refresh(event.user.data1);
+ cur_stream->refresh=0;
+ break;
+ default:
+ break;
+ }
+ }
+}
+
+static int opt_frame_size(const char *opt, const char *arg)
+{
+ av_log(NULL, AV_LOG_WARNING, "Option -s is deprecated, use -video_size.\n");
+ return opt_default("video_size", arg);
+}
+
+static int opt_width(const char *opt, const char *arg)
+{
+ screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
+ return 0;
+}
+
+static int opt_height(const char *opt, const char *arg)
+{
+ screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
+ return 0;
+}
+
+static int opt_format(const char *opt, const char *arg)
+{
+ file_iformat = av_find_input_format(arg);
+ if (!file_iformat) {
+ fprintf(stderr, "Unknown input format: %s\n", arg);
+ return AVERROR(EINVAL);
+ }
+ return 0;
+}
+
+static int opt_frame_pix_fmt(const char *opt, const char *arg)
+{
+ av_log(NULL, AV_LOG_WARNING, "Option -pix_fmt is deprecated, use -pixel_format.\n");
+ return opt_default("pixel_format", arg);
+}
+
+static int opt_sync(const char *opt, const char *arg)
+{
+ if (!strcmp(arg, "audio"))
+ av_sync_type = AV_SYNC_AUDIO_MASTER;
+ else if (!strcmp(arg, "video"))
+ av_sync_type = AV_SYNC_VIDEO_MASTER;
+ else if (!strcmp(arg, "ext"))
+ av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
+ else {
+ fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
+ exit(1);
+ }
+ return 0;
+}
+
+static int opt_seek(const char *opt, const char *arg)
+{
+ start_time = parse_time_or_die(opt, arg, 1);
+ return 0;
+}
+
+static int opt_duration(const char *opt, const char *arg)
+{
+ duration = parse_time_or_die(opt, arg, 1);
+ return 0;
+}
+
+static int opt_show_mode(const char *opt, const char *arg)
+{
+ show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO :
+ !strcmp(arg, "waves") ? SHOW_MODE_WAVES :
+ !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT :
+ parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1);
+ return 0;
+}
+
+static void opt_input_file(void *optctx, const char *filename)
+{
+ if (input_filename) {
+ fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
+ filename, input_filename);
+ exit_program(1);
+ }
+ if (!strcmp(filename, "-"))
+ filename = "pipe:";
+ input_filename = filename;
+}
+
+static int dummy;
+
+static const OptionDef options[] = {
+#include "cmdutils_common_opts.h"
+ { "x", HAS_ARG, {(void*)opt_width}, "force displayed width", "width" },
+ { "y", HAS_ARG, {(void*)opt_height}, "force displayed height", "height" },
+ { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
+ { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
+ { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
+ { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
+ { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
+ { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
+ { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
+ { "ss", HAS_ARG, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
+ { "t", HAS_ARG, {(void*)&opt_duration}, "play \"duration\" seconds of audio/video", "duration" },
+ { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
+ { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
+ { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
+ { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
+ { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
+ { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
+ { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
+ { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
+ { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
+ { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
+ { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
+ { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
+ { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
+ { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
+ { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
+ { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
+ { "sync", HAS_ARG | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
+ { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
+ { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
+ { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
+ { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
+ { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
+ { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
+#if CONFIG_AVFILTER
+ { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
+#endif
+ { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
+ { "showmode", HAS_ARG, {(void*)opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
+ { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
+ { "i", OPT_BOOL, {(void *)&dummy}, "read specified file", "input_file"},
+ { NULL, },
+};
+
+static void show_usage(void)
+{
+ printf("Simple media player\n");
+ printf("usage: %s [options] input_file\n", program_name);
+ printf("\n");
+}
+
+static int opt_help(const char *opt, const char *arg)
+{
+ const AVClass *class;
+ av_log_set_callback(log_callback_help);
+ show_usage();
+ show_help_options(options, "Main options:\n",
+ OPT_EXPERT, 0);
+ show_help_options(options, "\nAdvanced options:\n",
+ OPT_EXPERT, OPT_EXPERT);
+ printf("\n");
+ class = avcodec_get_class();
+ av_opt_show2(&class, NULL,
+ AV_OPT_FLAG_DECODING_PARAM, 0);
+ printf("\n");
+ class = avformat_get_class();
+ av_opt_show2(&class, NULL,
+ AV_OPT_FLAG_DECODING_PARAM, 0);
+#if !CONFIG_AVFILTER
+ printf("\n");
+ class = sws_get_class();
+ av_opt_show2(&class, NULL,
+ AV_OPT_FLAG_ENCODING_PARAM, 0);
+#endif
+ printf("\nWhile playing:\n"
+ "q, ESC quit\n"
+ "f toggle full screen\n"
+ "p, SPC pause\n"
+ "a cycle audio channel\n"
+ "v cycle video channel\n"
+ "t cycle subtitle channel\n"
+ "w show audio waves\n"
+ "s activate frame-step mode\n"
+ "left/right seek backward/forward 10 seconds\n"
+ "down/up seek backward/forward 1 minute\n"
+ "mouse click seek to percentage in file corresponding to fraction of width\n"
+ );
+ return 0;
+}
+
+static int lockmgr(void **mtx, enum AVLockOp op)
+{
+ switch(op) {
+ case AV_LOCK_CREATE:
+ *mtx = SDL_CreateMutex();
+ if(!*mtx)
+ return 1;
+ return 0;
+ case AV_LOCK_OBTAIN:
+ return !!SDL_LockMutex(*mtx);
+ case AV_LOCK_RELEASE:
+ return !!SDL_UnlockMutex(*mtx);
+ case AV_LOCK_DESTROY:
+ SDL_DestroyMutex(*mtx);
+ return 0;
+ }
+ return 1;
+}
+
+/* Called from the main */
+int main(int argc, char **argv)
+{
+ int flags;
+ VideoState *is;
+
+ av_log_set_flags(AV_LOG_SKIP_REPEATED);
+
+ /* register all codecs, demux and protocols */
+ avcodec_register_all();
+#if CONFIG_AVDEVICE
+ avdevice_register_all();
+#endif
+#if CONFIG_AVFILTER
+ avfilter_register_all();
+#endif
+ av_register_all();
+
+ init_opts();
+
+ show_banner();
+
+ parse_options(NULL, argc, argv, options, opt_input_file);
+
+ if (!input_filename) {
+ show_usage();
+ fprintf(stderr, "An input file must be specified\n");
+ fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
+ exit(1);
+ }
+
+ if (display_disable) {
+ video_disable = 1;
+ }
+ flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
+ if (audio_disable)
+ flags &= ~SDL_INIT_AUDIO;
+#if !defined(__MINGW32__) && !defined(__APPLE__)
+ flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
+#endif
+ if (SDL_Init (flags)) {
+ fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
+ fprintf(stderr, "(Did you set the DISPLAY variable?)\n");
+ exit(1);
+ }
+
+ if (!display_disable) {
+#if HAVE_SDL_VIDEO_SIZE
+ const SDL_VideoInfo *vi = SDL_GetVideoInfo();
+ fs_screen_width = vi->current_w;
+ fs_screen_height = vi->current_h;
+#endif
+ }
+
+ SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
+ SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
+ SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
+
+ if (av_lockmgr_register(lockmgr)) {
+ fprintf(stderr, "Could not initialize lock manager!\n");
+ do_exit(NULL);
+ }
+
+ av_init_packet(&flush_pkt);
+ flush_pkt.data= "FLUSH";
+
+ is = stream_open(input_filename, file_iformat);
+ if (!is) {
+ fprintf(stderr, "Failed to initialize VideoState!\n");
+ do_exit(NULL);
+ }
+
+ event_loop(is);
+
+ /* never returns */
+
+ return 0;
+}
+++ /dev/null
--/*
- * Apple ProRes compatible decoder
- *
-- * Copyright (c) 2010-2011 Maxim Poliakovski
- * Copyright (c) 2010-2011 Elvis Presley
-- *
- * This file is part of FFmpeg.
- * This file is part of Libav.
-- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public
- * License as published by the Free Software Foundation;
- * version 2 of the License.
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
-- *
- * FFmpeg is distributed in the hope that it will be useful,
- * Libav is distributed in the hope that it will be useful,
-- * but WITHOUT ANY WARRANTY; without even the implied warranty of
-- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- * Lesser General Public License for more details.
-- *
- * You should have received a copy of the GNU General Public
- * License along with FFmpeg; if not, write to the Free Software
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
-- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
-- */
--
--/**
- * @file libavcodec/proresdec.c
- * Known FOURCCs: 'apch' (HQ), 'apcn' (SD), 'apcs' (LT), 'acpo' (Proxy), 'ap4c' (4444)
- * @file
- * This is a decoder for Apple ProRes 422 SD/HQ/LT/Proxy and ProRes 4444.
- * It is used for storing and editing high definition video data in Apple's Final Cut Pro.
- *
- * @see http://wiki.multimedia.cx/index.php?title=Apple_ProRes
-- */
--
- //#define DEBUG
-#define A32_BITSTREAM_READER // some ProRes vlc codes require up to 28 bits to be read at once
--
- #define A32_BITSTREAM_READER
-#include <stdint.h>
--
-#include "libavutil/intmath.h"
--#include "avcodec.h"
- #include "get_bits.h"
--#include "dsputil.h"
- #include "simple_idct.h"
-#include "get_bits.h"
--
- typedef struct {
- const uint8_t *data;
- unsigned mb_x;
- unsigned mb_y;
- unsigned mb_count;
- unsigned data_size;
- } SliceContext;
-#define BITS_PER_SAMPLE 10 ///< output precision of that decoder
-#define BIAS (1 << (BITS_PER_SAMPLE - 1)) ///< bias value for converting signed pixels into unsigned ones
-#define CLIP_MIN (1 << (BITS_PER_SAMPLE - 8)) ///< minimum value for clipping resulting pixels
-#define CLIP_MAX (1 << BITS_PER_SAMPLE) - CLIP_MIN - 1 ///< maximum value for clipping resulting pixels
-
--
--typedef struct {
- AVFrame frame;
-- DSPContext dsp;
- int frame_type; ///< 0 = progressive, 1 = tff, 2 = bff
- uint8_t qmat_luma[64];
- uint8_t qmat_chroma[64];
- SliceContext *slices;
- int slice_count; ///< number of slices in the current picture
- unsigned mb_width; ///< width of the current picture in mb
- unsigned mb_height; ///< height of the current picture in mb
- uint8_t progressive_scan[64];
- uint8_t interlaced_scan[64];
- const uint8_t *scan;
- int first_field;
- void (*idct_put)(DCTELEM *, uint8_t *restrict, int);
- } ProresContext;
-
- static void permute(uint8_t *dst, const uint8_t *src, const uint8_t permutation[64])
- {
- int i;
- for (i = 0; i < 64; i++)
- dst[i] = permutation[src[i]];
- }
-
- static av_always_inline void put_pixels(const DCTELEM *block, uint8_t *restrict pixels, int stride)
- {
- int16_t *p = (int16_t*)pixels;
- int i, j;
- AVFrame picture;
- ScanTable scantable;
- int scantable_type; ///< -1 = uninitialized, 0 = progressive, 1/2 = interlaced
--
- stride >>= 1;
- for(i = 0; i < 8; i++) {
- for (j = 0; j < 8; j++) {
- p[j] = av_clip(block[j], 4, 1019);
- }
- p += stride;
- block += 8;
- }
- }
- int frame_type; ///< 0 = progressive, 1 = top-field first, 2 = bottom-field first
- int pic_format; ///< 2 = 422, 3 = 444
- uint8_t qmat_luma[64]; ///< dequantization matrix for luma
- uint8_t qmat_chroma[64]; ///< dequantization matrix for chroma
- int qmat_changed; ///< 1 - global quantization matrices changed
- int prev_slice_sf; ///< scalefactor of the previous decoded slice
- DECLARE_ALIGNED(16, int16_t, qmat_luma_scaled[64]);
- DECLARE_ALIGNED(16, int16_t, qmat_chroma_scaled[64]);
- DECLARE_ALIGNED(16, DCTELEM, blocks[8 * 4 * 64]);
- int total_slices; ///< total number of slices in a picture
- const uint8_t **slice_data_index; ///< array of pointers to the data of each slice
- int chroma_factor;
- int mb_chroma_factor;
- int num_chroma_blocks; ///< number of chrominance blocks in a macroblock
- int num_x_slices;
- int num_y_slices;
- int slice_width_factor;
- int slice_height_factor;
- int num_x_mbs;
- int num_y_mbs;
-} ProresContext;
--
- static void idct_put(DCTELEM *block, uint8_t *restrict pixels, int stride)
- {
- ff_simple_idct_10(block);
- put_pixels(block, pixels, stride);
- }
--
--static const uint8_t progressive_scan[64] = {
-- 0, 1, 8, 9, 2, 3, 10, 11,
-- 16, 17, 24, 25, 18, 19, 26, 27,
-- 4, 5, 12, 20, 13, 6, 7, 14,
-- 21, 28, 29, 22, 15, 23, 30, 31,
-- 32, 33, 40, 48, 41, 34, 35, 42,
-- 49, 56, 57, 50, 43, 36, 37, 44,
-- 51, 58, 59, 52, 45, 38, 39, 46,
-- 53, 60, 61, 54, 47, 55, 62, 63
--};
--
--static const uint8_t interlaced_scan[64] = {
-- 0, 8, 1, 9, 16, 24, 17, 25,
-- 2, 10, 3, 11, 18, 26, 19, 27,
-- 32, 40, 33, 34, 41, 48, 56, 49,
-- 42, 35, 43, 50, 57, 58, 51, 59,
-- 4, 12, 5, 6, 13, 20, 28, 21,
-- 14, 7, 15, 22, 29, 36, 44, 37,
-- 30, 23, 31, 38, 45, 52, 60, 53,
- 46, 39, 47, 54, 61, 62, 55, 63,
- 46, 39, 47, 54, 61, 62, 55, 63
--};
-
--
--static av_cold int decode_init(AVCodecContext *avctx)
--{
-- ProresContext *ctx = avctx->priv_data;
--
- avctx->bits_per_raw_sample = 10;
- ctx->total_slices = 0;
- ctx->slice_data_index = 0;
-
- avctx->pix_fmt = PIX_FMT_YUV422P10; // set default pixel format
--
- avctx->bits_per_raw_sample = BITS_PER_SAMPLE;
-- dsputil_init(&ctx->dsp, avctx);
--
- avctx->coded_frame = &ctx->frame;
- ctx->frame.type = FF_I_TYPE;
- ctx->frame.key_frame = 1;
- avctx->coded_frame = &ctx->picture;
- avcodec_get_frame_defaults(&ctx->picture);
- ctx->picture.type = AV_PICTURE_TYPE_I;
- ctx->picture.key_frame = 1;
--
- ctx->idct_put = idct_put;
- memcpy(ctx->progressive_scan, progressive_scan, sizeof(progressive_scan));
- memcpy(ctx->interlaced_scan, interlaced_scan, sizeof(interlaced_scan));
- ctx->scantable_type = -1; // set scantable type to uninitialized
- memset(ctx->qmat_luma, 4, 64);
- memset(ctx->qmat_chroma, 4, 64);
- ctx->prev_slice_sf = 0;
--
-- return 0;
--}
-
--
--static int decode_frame_header(ProresContext *ctx, const uint8_t *buf,
-- const int data_size, AVCodecContext *avctx)
--{
- int hdr_size, width, height, flags;
- int version;
- int hdr_size, version, width, height, flags;
-- const uint8_t *ptr;
- const uint8_t *scan;
--
-- hdr_size = AV_RB16(buf);
- av_dlog(avctx, "header size %d\n", hdr_size);
-- if (hdr_size > data_size) {
- av_log(avctx, AV_LOG_ERROR, "error, wrong header size\n");
- av_log(avctx, AV_LOG_ERROR, "frame data too short!\n");
-- return -1;
-- }
--
-- version = AV_RB16(buf + 2);
- av_dlog(avctx, "%.4s version %d\n", buf+4, version);
- if (version > 1) {
- av_log(avctx, AV_LOG_ERROR, "unsupported version: %d\n", version);
- if (version >= 2) {
- av_log(avctx, AV_LOG_ERROR,
- "unsupported header version: %d\n", version);
-- return -1;
-- }
--
-- width = AV_RB16(buf + 8);
-- height = AV_RB16(buf + 10);
-- if (width != avctx->width || height != avctx->height) {
- av_log(avctx, AV_LOG_ERROR, "picture resolution change: %dx%d -> %dx%d\n",
- av_log(avctx, AV_LOG_ERROR,
- "picture dimension changed! Old: %d x %d, new: %d x %d\n",
-- avctx->width, avctx->height, width, height);
-- return -1;
-- }
--
-- ctx->frame_type = (buf[12] >> 2) & 3;
- if (ctx->frame_type > 2) {
- av_log(avctx, AV_LOG_ERROR,
- "unsupported frame type: %d!\n", ctx->frame_type);
- return -1;
- }
--
- av_dlog(avctx, "frame type %d\n", ctx->frame_type);
- ctx->chroma_factor = (buf[12] >> 6) & 3;
- ctx->mb_chroma_factor = ctx->chroma_factor + 2;
- ctx->num_chroma_blocks = (1 << ctx->chroma_factor) >> 1;
- switch (ctx->chroma_factor) {
- case 2:
- avctx->pix_fmt = PIX_FMT_YUV422P10;
- break;
- case 3:
- avctx->pix_fmt = PIX_FMT_YUV444P10;
- break;
- default:
- av_log(avctx, AV_LOG_ERROR,
- "unsupported picture format: %d!\n", ctx->pic_format);
- return -1;
- }
--
- if (ctx->frame_type == 0) {
- scan = progressive_scan;
- ctx->scan = ctx->progressive_scan; // permuted
- } else {
- scan = interlaced_scan;
- ctx->scan = ctx->interlaced_scan; // permuted
- ctx->frame.interlaced_frame = 1;
- ctx->frame.top_field_first = ctx->frame_type == 1;
- if (ctx->scantable_type != ctx->frame_type) {
- if (!ctx->frame_type)
- ff_init_scantable(ctx->dsp.idct_permutation, &ctx->scantable,
- progressive_scan);
- else
- ff_init_scantable(ctx->dsp.idct_permutation, &ctx->scantable,
- interlaced_scan);
- ctx->scantable_type = ctx->frame_type;
-- }
--
- avctx->pix_fmt = ((buf[12] & 0xC0) == 0xC0) ? PIX_FMT_YUV444P10 : PIX_FMT_YUV422P10;
- if (ctx->frame_type) { /* if interlaced */
- ctx->picture.interlaced_frame = 1;
- ctx->picture.top_field_first = ctx->frame_type & 1;
- }
--
- ctx->qmat_changed = 0;
-- ptr = buf + 20;
-- flags = buf[19];
- av_dlog(avctx, "flags %x\n", flags);
-
-- if (flags & 2) {
- permute(ctx->qmat_luma, scan, ptr);
- if (ptr - buf > hdr_size - 64) {
- av_log(avctx, AV_LOG_ERROR, "Too short header data\n");
- return -1;
- }
- if (memcmp(ctx->qmat_luma, ptr, 64)) {
- memcpy(ctx->qmat_luma, ptr, 64);
- ctx->qmat_changed = 1;
- }
-- ptr += 64;
-- } else {
-- memset(ctx->qmat_luma, 4, 64);
- ctx->qmat_changed = 1;
-- }
--
-- if (flags & 1) {
- permute(ctx->qmat_chroma, scan, ptr);
- if (ptr - buf > hdr_size - 64) {
- av_log(avctx, AV_LOG_ERROR, "Too short header data\n");
- return -1;
- }
- if (memcmp(ctx->qmat_chroma, ptr, 64)) {
- memcpy(ctx->qmat_chroma, ptr, 64);
- ctx->qmat_changed = 1;
- }
-- } else {
-- memset(ctx->qmat_chroma, 4, 64);
- ctx->qmat_changed = 1;
-- }
--
-- return hdr_size;
--}
--
- static int decode_picture_header(AVCodecContext *avctx, const uint8_t *buf, const int buf_size)
-
-static int decode_picture_header(ProresContext *ctx, const uint8_t *buf,
- const int data_size, AVCodecContext *avctx)
--{
- ProresContext *ctx = avctx->priv_data;
- int i, hdr_size, slice_count;
- unsigned pic_data_size;
- int log2_slice_mb_width, log2_slice_mb_height;
- int slice_mb_count, mb_x, mb_y;
- int i, hdr_size, pic_data_size, num_slices;
- int slice_width_factor, slice_height_factor;
- int remainder, num_x_slices;
-- const uint8_t *data_ptr, *index_ptr;
--
- hdr_size = buf[0] >> 3;
- if (hdr_size < 8 || hdr_size > buf_size) {
- av_log(avctx, AV_LOG_ERROR, "error, wrong picture header size\n");
- hdr_size = data_size > 0 ? buf[0] >> 3 : 0;
- if (hdr_size < 8 || hdr_size > data_size) {
- av_log(avctx, AV_LOG_ERROR, "picture header too short!\n");
-- return -1;
-- }
--
-- pic_data_size = AV_RB32(buf + 1);
- if (pic_data_size > buf_size) {
- av_log(avctx, AV_LOG_ERROR, "error, wrong picture data size\n");
- if (pic_data_size > data_size) {
- av_log(avctx, AV_LOG_ERROR, "picture data too short!\n");
-- return -1;
-- }
--
- log2_slice_mb_width = buf[7] >> 4;
- log2_slice_mb_height = buf[7] & 0xF;
- if (log2_slice_mb_width > 3 || log2_slice_mb_height) {
- av_log(avctx, AV_LOG_ERROR, "unsupported slice resolution: %dx%d\n",
- 1 << log2_slice_mb_width, 1 << log2_slice_mb_height);
- slice_width_factor = buf[7] >> 4;
- slice_height_factor = buf[7] & 0xF;
- if (slice_width_factor > 3 || slice_height_factor) {
- av_log(avctx, AV_LOG_ERROR,
- "unsupported slice dimension: %d x %d!\n",
- 1 << slice_width_factor, 1 << slice_height_factor);
-- return -1;
-- }
--
- ctx->mb_width = (avctx->width + 15) >> 4;
- ctx->mb_height = (avctx->height + 15) >> 4;
- ctx->slice_width_factor = slice_width_factor;
- ctx->slice_height_factor = slice_height_factor;
--
- slice_count = AV_RB16(buf + 5);
- ctx->num_x_mbs = (avctx->width + 15) >> 4;
- ctx->num_y_mbs =
- (avctx->height + (1 << (4 + ctx->picture.interlaced_frame)) - 1) >>
- (4 + ctx->picture.interlaced_frame);
--
- if (ctx->slice_count != slice_count || !ctx->slices) {
- av_freep(&ctx->slices);
- ctx->slices = av_mallocz(slice_count * sizeof(*ctx->slices));
- if (!ctx->slices)
- return AVERROR(ENOMEM);
- ctx->slice_count = slice_count;
- remainder = ctx->num_x_mbs & ((1 << slice_width_factor) - 1);
- num_x_slices = (ctx->num_x_mbs >> slice_width_factor) + (remainder & 1) +
- ((remainder >> 1) & 1) + ((remainder >> 2) & 1);
-
- num_slices = num_x_slices * ctx->num_y_mbs;
- if (num_slices != AV_RB16(buf + 5)) {
- av_log(avctx, AV_LOG_ERROR, "invalid number of slices!\n");
- return -1;
-- }
--
- if (!slice_count)
- return AVERROR(EINVAL);
- if (ctx->total_slices != num_slices) {
- av_freep(&ctx->slice_data_index);
- ctx->slice_data_index =
- av_malloc((num_slices + 1) * sizeof(uint8_t*));
- if (!ctx->slice_data_index)
- return AVERROR(ENOMEM);
- ctx->total_slices = num_slices;
- }
--
- if (hdr_size + slice_count*2 > buf_size) {
- av_log(avctx, AV_LOG_ERROR, "error, wrong slice count\n");
- if (hdr_size + num_slices * 2 > data_size) {
- av_log(avctx, AV_LOG_ERROR, "slice table too short!\n");
-- return -1;
-- }
--
- // parse slice information
- /* parse slice table allowing quick access to the slice data */
-- index_ptr = buf + hdr_size;
- data_ptr = index_ptr + slice_count*2;
- data_ptr = index_ptr + num_slices * 2;
--
- slice_mb_count = 1 << log2_slice_mb_width;
- mb_x = 0;
- mb_y = 0;
- for (i = 0; i < num_slices; i++) {
- ctx->slice_data_index[i] = data_ptr;
- data_ptr += AV_RB16(index_ptr + i * 2);
- }
- ctx->slice_data_index[i] = data_ptr;
--
- for (i = 0; i < slice_count; i++) {
- SliceContext *slice = &ctx->slices[i];
- if (data_ptr > buf + data_size) {
- av_log(avctx, AV_LOG_ERROR, "out of slice data!\n");
- return -1;
- }
--
- slice->data = data_ptr;
- data_ptr += AV_RB16(index_ptr + i*2);
- return pic_data_size;
-}
--
- while (ctx->mb_width - mb_x < slice_mb_count)
- slice_mb_count >>= 1;
--
- slice->mb_x = mb_x;
- slice->mb_y = mb_y;
- slice->mb_count = slice_mb_count;
- slice->data_size = data_ptr - slice->data;
-/**
- * Read an unsigned rice/exp golomb codeword.
- */
-static inline int decode_vlc_codeword(GetBitContext *gb, uint8_t codebook)
-{
- unsigned int rice_order, exp_order, switch_bits;
- unsigned int buf, code;
- int log, prefix_len, len;
--
- if (slice->data_size < 6) {
- av_log(avctx, AV_LOG_ERROR, "error, wrong slice data size\n");
- return -1;
- }
- OPEN_READER(re, gb);
- UPDATE_CACHE(re, gb);
- buf = GET_CACHE(re, gb);
--
- mb_x += slice_mb_count;
- if (mb_x == ctx->mb_width) {
- slice_mb_count = 1 << log2_slice_mb_width;
- mb_x = 0;
- mb_y++;
- }
- if (data_ptr > buf + buf_size) {
- av_log(avctx, AV_LOG_ERROR, "error, slice out of bounds\n");
- return -1;
- /* number of prefix bits to switch between Rice and expGolomb */
- switch_bits = (codebook & 3) + 1;
- rice_order = codebook >> 5; /* rice code order */
- exp_order = (codebook >> 2) & 7; /* exp golomb code order */
-
- log = 31 - av_log2(buf); /* count prefix bits (zeroes) */
-
- if (log < switch_bits) { /* ok, we got a rice code */
- if (!rice_order) {
- /* shortcut for faster decoding of rice codes without remainder */
- code = log;
- LAST_SKIP_BITS(re, gb, log + 1);
- } else {
- prefix_len = log + 1;
- code = (log << rice_order) + NEG_USR32((buf << prefix_len), rice_order);
- LAST_SKIP_BITS(re, gb, prefix_len + rice_order);
-- }
- } else { /* otherwise we got a exp golomb code */
- len = (log << 1) - switch_bits + exp_order + 1;
- code = NEG_USR32(buf, len) - (1 << exp_order) + (switch_bits << rice_order);
- LAST_SKIP_BITS(re, gb, len);
-- }
--
- return pic_data_size;
- CLOSE_READER(re, gb);
-
- return code;
--}
--
- #define DECODE_CODEWORD(val, codebook) \
- do { \
- unsigned int rice_order, exp_order, switch_bits; \
- unsigned int q, buf, bits; \
- \
- UPDATE_CACHE(re, gb); \
- buf = GET_CACHE(re, gb); \
- \
- /* number of bits to switch between rice and exp golomb */ \
- switch_bits = codebook & 3; \
- rice_order = codebook >> 5; \
- exp_order = (codebook >> 2) & 7; \
- \
- q = 31-av_log2(buf); \
- \
- if (q > switch_bits) { /* exp golomb */ \
- bits = exp_order - switch_bits + (q<<1); \
- val = SHOW_UBITS(re, gb, bits) - (1 << exp_order) + \
- ((switch_bits + 1) << rice_order); \
- SKIP_BITS(re, gb, bits); \
- } else if (rice_order) { \
- SKIP_BITS(re, gb, q+1); \
- val = (q << rice_order) + SHOW_UBITS(re, gb, rice_order); \
- SKIP_BITS(re, gb, rice_order); \
- } else { \
- val = q; \
- SKIP_BITS(re, gb, q+1); \
- } \
- } while (0); \
-#define LSB2SIGN(x) (-((x) & 1))
-#define TOSIGNED(x) (((x) >> 1) ^ LSB2SIGN(x))
--
- #define TOSIGNED(x) (((x) >> 1) ^ (-((x) & 1)))
-#define FIRST_DC_CB 0xB8 // rice_order = 5, exp_golomb_order = 6, switch_bits = 0
--
- #define FIRST_DC_CB 0xB8
-static uint8_t dc_codebook[4] = {
- 0x04, // rice_order = 0, exp_golomb_order = 1, switch_bits = 0
- 0x28, // rice_order = 1, exp_golomb_order = 2, switch_bits = 0
- 0x4D, // rice_order = 2, exp_golomb_order = 3, switch_bits = 1
- 0x70 // rice_order = 3, exp_golomb_order = 4, switch_bits = 0
-};
--
- static const uint8_t dc_codebook[7] = { 0x04, 0x28, 0x28, 0x4D, 0x4D, 0x70, 0x70};
--
- static av_always_inline void decode_dc_coeffs(GetBitContext *gb, DCTELEM *out,
- int blocks_per_slice, const int *qmat)
-/**
- * Decode DC coefficients for all blocks in a slice.
- */
-static inline void decode_dc_coeffs(GetBitContext *gb, DCTELEM *out,
- int nblocks)
--{
-- DCTELEM prev_dc;
- int code, i, sign;
- int i, sign;
- int16_t delta;
- unsigned int code;
--
- OPEN_READER(re, gb);
- code = decode_vlc_codeword(gb, FIRST_DC_CB);
- out[0] = prev_dc = TOSIGNED(code);
--
- DECODE_CODEWORD(code, FIRST_DC_CB);
- prev_dc = TOSIGNED(code);
- out[0] = 4096 + ((prev_dc * qmat[0]) >> 2);
- out += 64; /* move to the DC coeff of the next block */
- delta = 3;
--
- out += 64; // dc coeff for the next block
- for (i = 1; i < nblocks; i++, out += 64) {
- code = decode_vlc_codeword(gb, dc_codebook[FFMIN(FFABS(delta), 3)]);
--
- code = 5;
- sign = 0;
- for (i = 1; i < blocks_per_slice; i++, out += 64) {
- DECODE_CODEWORD(code, dc_codebook[FFMIN(code, 6)]);
- if(code) sign ^= -(code & 1);
- else sign = 0;
- prev_dc += (((code + 1) >> 1) ^ sign) - sign;
- out[0] = 4096 + ((prev_dc * qmat[0]) >> 2);
- sign = -(((delta >> 15) & 1) ^ (code & 1));
- delta = (((code + 1) >> 1) ^ sign) - sign;
- prev_dc += delta;
- out[0] = prev_dc;
-- }
- CLOSE_READER(re, gb);
--}
--
- // adaptive codebook switching lut according to previous run/level values
- static const uint8_t run_to_cb[16] = { 0x06, 0x06, 0x05, 0x05, 0x04, 0x29, 0x29, 0x29, 0x29, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x4C };
- static const uint8_t lev_to_cb[10] = { 0x04, 0x0A, 0x05, 0x06, 0x04, 0x28, 0x28, 0x28, 0x28, 0x4C };
--
- static av_always_inline void decode_ac_coeffs(AVCodecContext *avctx, GetBitContext *gb,
- DCTELEM *out, int blocks_per_slice,
- const int *qmat)
- {
- ProresContext *ctx = avctx->priv_data;
- int block_mask, sign;
- unsigned pos, run, level;
- int max_coeffs, i, bits_left;
- int log2_block_count = av_log2(blocks_per_slice);
-static uint8_t ac_codebook[7] = {
- 0x04, // rice_order = 0, exp_golomb_order = 1, switch_bits = 0
- 0x28, // rice_order = 1, exp_golomb_order = 2, switch_bits = 0
- 0x4C, // rice_order = 2, exp_golomb_order = 3, switch_bits = 0
- 0x05, // rice_order = 0, exp_golomb_order = 1, switch_bits = 1
- 0x29, // rice_order = 1, exp_golomb_order = 2, switch_bits = 1
- 0x06, // rice_order = 0, exp_golomb_order = 1, switch_bits = 2
- 0x0A, // rice_order = 0, exp_golomb_order = 2, switch_bits = 2
-};
--
- OPEN_READER(re, gb);
-/**
- * Lookup tables for adaptive switching between codebooks
- * according with previous run/level value.
- */
-static uint8_t run_to_cb_index[16] =
- { 5, 5, 3, 3, 0, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 2 };
-
-static uint8_t lev_to_cb_index[10] = { 0, 6, 3, 5, 0, 1, 1, 1, 1, 2 };
-
-
-/**
- * Decode AC coefficients for all blocks in a slice.
- */
-static inline void decode_ac_coeffs(GetBitContext *gb, DCTELEM *out,
- int blocks_per_slice,
- int plane_size_factor,
- const uint8_t *scan)
-{
- int pos, block_mask, run, level, sign, run_cb_index, lev_cb_index;
- int max_coeffs, bits_left;
--
- /* set initial prediction values */
-- run = 4;
-- level = 2;
--
- max_coeffs = 64 << log2_block_count;
- max_coeffs = blocks_per_slice << 6;
-- block_mask = blocks_per_slice - 1;
--
- for (pos = block_mask;;) {
- bits_left = gb->size_in_bits - (((uint8_t*)re_buffer_ptr - gb->buffer)*8 - 32 + re_bit_count);
- if (!bits_left || (bits_left < 32 && !SHOW_UBITS(re, gb, bits_left)))
- break;
- for (pos = blocks_per_slice - 1; pos < max_coeffs;) {
- run_cb_index = run_to_cb_index[FFMIN(run, 15)];
- lev_cb_index = lev_to_cb_index[FFMIN(level, 9)];
--
- DECODE_CODEWORD(run, run_to_cb[FFMIN(run, 15)]);
- pos += run + 1;
- if (pos >= max_coeffs) {
- av_log(avctx, AV_LOG_ERROR, "ac tex damaged %d, %d\n", pos, max_coeffs);
- bits_left = get_bits_left(gb);
- if (bits_left <= 8 && !show_bits(gb, bits_left))
-- return;
- }
--
- DECODE_CODEWORD(level, lev_to_cb[FFMIN(level, 9)]);
- level += 1;
- run = decode_vlc_codeword(gb, ac_codebook[run_cb_index]);
--
- i = pos >> log2_block_count;
- bits_left = get_bits_left(gb);
- if (bits_left <= 8 && !show_bits(gb, bits_left))
- return;
--
- sign = SHOW_SBITS(re, gb, 1);
- SKIP_BITS(re, gb, 1);
- out[((pos & block_mask) << 6) + ctx->scan[i]] = (((level ^ sign) - sign) * qmat[i]) >> 2;
- }
- level = decode_vlc_codeword(gb, ac_codebook[lev_cb_index]) + 1;
--
- CLOSE_READER(re, gb);
- pos += run + 1;
- if (pos >= max_coeffs)
- break;
-
- sign = get_sbits(gb, 1);
- out[((pos & block_mask) << 6) + scan[pos >> plane_size_factor]] =
- (level ^ sign) - sign;
- }
--}
--
- static void decode_slice_luma(AVCodecContext *avctx, SliceContext *slice,
- uint8_t *dst, int dst_stride,
- const uint8_t *buf, unsigned buf_size,
- const int *qmat)
-
-#define CLIP_AND_BIAS(x) (av_clip((x) + BIAS, CLIP_MIN, CLIP_MAX))
-
-/**
- * Add bias value, clamp and output pixels of a slice
- */
-static void put_pixels(const DCTELEM *in, uint16_t *out, int stride,
- int mbs_per_slice, int blocks_per_mb)
--{
- ProresContext *ctx = avctx->priv_data;
- LOCAL_ALIGNED_16(DCTELEM, blocks, [8*4*64]);
- DCTELEM *block;
- GetBitContext gb;
- int i, blocks_per_slice = slice->mb_count<<2;
- int mb, x, y, src_offset, dst_offset;
- const DCTELEM *src1, *src2;
- uint16_t *dst1, *dst2;
--
- for (i = 0; i < blocks_per_slice; i++)
- ctx->dsp.clear_block(blocks+(i<<6));
- src1 = in;
- src2 = in + (blocks_per_mb << 5);
- dst1 = out;
- dst2 = out + (stride << 3);
--
- init_get_bits(&gb, buf, buf_size << 3);
- for (mb = 0; mb < mbs_per_slice; mb++) {
- for (y = 0, dst_offset = 0; y < 8; y++, dst_offset += stride) {
- for (x = 0; x < 8; x++) {
- src_offset = (y << 3) + x;
--
- decode_dc_coeffs(&gb, blocks, blocks_per_slice, qmat);
- decode_ac_coeffs(avctx, &gb, blocks, blocks_per_slice, qmat);
- dst1[dst_offset + x] = CLIP_AND_BIAS(src1[src_offset]);
- dst2[dst_offset + x] = CLIP_AND_BIAS(src2[src_offset]);
--
- block = blocks;
- if (blocks_per_mb > 2) {
- dst1[dst_offset + x + 8] =
- CLIP_AND_BIAS(src1[src_offset + 64]);
- dst2[dst_offset + x + 8] =
- CLIP_AND_BIAS(src2[src_offset + 64]);
- }
- }
- }
--
- for (i = 0; i < slice->mb_count; i++) {
- ctx->idct_put(block+(0<<6), dst, dst_stride);
- ctx->idct_put(block+(1<<6), dst+16, dst_stride);
- ctx->idct_put(block+(2<<6), dst+8*dst_stride, dst_stride);
- ctx->idct_put(block+(3<<6), dst+8*dst_stride+16, dst_stride);
- block += 4*64;
- dst += 32;
- src1 += blocks_per_mb << 6;
- src2 += blocks_per_mb << 6;
- dst1 += blocks_per_mb << 2;
- dst2 += blocks_per_mb << 2;
-- }
-
--}
--
- static void decode_slice_chroma(AVCodecContext *avctx, SliceContext *slice,
- uint8_t *dst, int dst_stride,
- const uint8_t *buf, unsigned buf_size,
- const int *qmat, int log2_blocks_per_mb)
-
-/**
- * Decode a slice plane (luma or chroma).
- */
-static void decode_slice_plane(ProresContext *ctx, const uint8_t *buf,
- int data_size, uint16_t *out_ptr,
- int linesize, int mbs_per_slice,
- int blocks_per_mb, int plane_size_factor,
- const int16_t *qmat)
--{
- ProresContext *ctx = avctx->priv_data;
- LOCAL_ALIGNED_16(DCTELEM, blocks, [8*4*64]);
- DCTELEM *block;
-- GetBitContext gb;
- int i, j, blocks_per_slice = slice->mb_count << log2_blocks_per_mb;
- DCTELEM *block_ptr;
- int i, blk_num, blocks_per_slice;
--
- for (i = 0; i < blocks_per_slice; i++)
- ctx->dsp.clear_block(blocks+(i<<6));
- blocks_per_slice = mbs_per_slice * blocks_per_mb;
--
- init_get_bits(&gb, buf, buf_size << 3);
- memset(ctx->blocks, 0, 8 * 4 * 64 * sizeof(*ctx->blocks));
--
- decode_dc_coeffs(&gb, blocks, blocks_per_slice, qmat);
- decode_ac_coeffs(avctx, &gb, blocks, blocks_per_slice, qmat);
- init_get_bits(&gb, buf, data_size << 3);
--
- block = blocks;
- for (i = 0; i < slice->mb_count; i++) {
- for (j = 0; j < log2_blocks_per_mb; j++) {
- ctx->idct_put(block+(0<<6), dst, dst_stride);
- ctx->idct_put(block+(1<<6), dst+8*dst_stride, dst_stride);
- block += 2*64;
- dst += 16;
- }
- decode_dc_coeffs(&gb, ctx->blocks, blocks_per_slice);
-
- decode_ac_coeffs(&gb, ctx->blocks, blocks_per_slice,
- plane_size_factor, ctx->scantable.permutated);
-
- /* inverse quantization, inverse transform and output */
- block_ptr = ctx->blocks;
-
- for (blk_num = 0; blk_num < blocks_per_slice;
- blk_num++, block_ptr += 64) {
- /* TODO: the correct solution shoud be (block_ptr[i] * qmat[i]) >> 1
- * and the input of the inverse transform should be scaled by 2
- * in order to avoid rounding errors.
- * Due to the fact the existing Libav transforms are incompatible with
- * that input I temporally introduced the coarse solution below... */
- for (i = 0; i < 64; i++)
- block_ptr[i] = (block_ptr[i] * qmat[i]) >> 2;
-
- ctx->dsp.idct(block_ptr);
-- }
-
- put_pixels(ctx->blocks, out_ptr, linesize >> 1, mbs_per_slice,
- blocks_per_mb);
--}
--
- static int decode_slice_thread(AVCodecContext *avctx, void *arg, int jobnr, int threadnr)
-
-static int decode_slice(ProresContext *ctx, int pic_num, int slice_num,
- int mb_x_pos, int mb_y_pos, int mbs_per_slice,
- AVCodecContext *avctx)
--{
- ProresContext *ctx = avctx->priv_data;
- SliceContext *slice = &ctx->slices[jobnr];
- const uint8_t *buf = slice->data;
- const uint8_t *buf;
- uint8_t *y_data, *u_data, *v_data;
-- AVFrame *pic = avctx->coded_frame;
- int i, hdr_size, qscale, log2_chroma_blocks_per_mb;
- int luma_stride, chroma_stride;
- int y_data_size, u_data_size, v_data_size;
- uint8_t *dest_y, *dest_u, *dest_v;
- int qmat_luma_scaled[64];
- int qmat_chroma_scaled[64];
- int mb_x_shift;
-
- //av_log(avctx, AV_LOG_INFO, "slice %d mb width %d mb x %d y %d\n",
- // jobnr, slice->mb_count, slice->mb_x, slice->mb_y);
- int i, sf, slice_width_factor;
- int slice_data_size, hdr_size, y_data_size, u_data_size, v_data_size;
- int y_linesize, u_linesize, v_linesize;
--
- // slice header
- hdr_size = buf[0] >> 3;
- qscale = av_clip(buf[1], 1, 224);
- qscale = qscale > 128 ? qscale - 96 << 2: qscale;
- y_data_size = AV_RB16(buf + 2);
- u_data_size = AV_RB16(buf + 4);
- v_data_size = slice->data_size - y_data_size - u_data_size - hdr_size;
- if (hdr_size > 7) v_data_size = AV_RB16(buf + 6);
- buf = ctx->slice_data_index[slice_num];
- slice_data_size = ctx->slice_data_index[slice_num + 1] - buf;
--
- if (y_data_size < 0 || u_data_size < 0 || v_data_size < 0) {
- av_log(avctx, AV_LOG_ERROR, "invalid plane data size\n");
- return -1;
- }
- slice_width_factor = av_log2(mbs_per_slice);
--
- buf += hdr_size;
- y_data = pic->data[0];
- u_data = pic->data[1];
- v_data = pic->data[2];
- y_linesize = pic->linesize[0];
- u_linesize = pic->linesize[1];
- v_linesize = pic->linesize[2];
--
- for (i = 0; i < 64; i++) {
- qmat_luma_scaled[i] = ctx->qmat_luma[i] * qscale;
- qmat_chroma_scaled[i] = ctx->qmat_chroma[i] * qscale;
- if (pic->interlaced_frame) {
- if (!(pic_num ^ pic->top_field_first)) {
- y_data += y_linesize;
- u_data += u_linesize;
- v_data += v_linesize;
- }
- y_linesize <<= 1;
- u_linesize <<= 1;
- v_linesize <<= 1;
-- }
--
- if (ctx->frame_type == 0) {
- luma_stride = pic->linesize[0];
- chroma_stride = pic->linesize[1];
- } else {
- luma_stride = pic->linesize[0] << 1;
- chroma_stride = pic->linesize[1] << 1;
- if (slice_data_size < 6) {
- av_log(avctx, AV_LOG_ERROR, "slice data too short!\n");
- return -1;
-- }
--
- if (avctx->pix_fmt == PIX_FMT_YUV444P10) {
- mb_x_shift = 5;
- log2_chroma_blocks_per_mb = 2;
- } else {
- mb_x_shift = 4;
- log2_chroma_blocks_per_mb = 1;
- /* parse slice header */
- hdr_size = buf[0] >> 3;
- y_data_size = AV_RB16(buf + 2);
- u_data_size = AV_RB16(buf + 4);
- v_data_size = slice_data_size - y_data_size - u_data_size - hdr_size;
-
- if (v_data_size < 0 || hdr_size < 6) {
- av_log(avctx, AV_LOG_ERROR, "invalid data sizes!\n");
- return -1;
-- }
--
- dest_y = pic->data[0] + (slice->mb_y << 4) * luma_stride + (slice->mb_x << 5);
- dest_u = pic->data[1] + (slice->mb_y << 4) * chroma_stride + (slice->mb_x << mb_x_shift);
- dest_v = pic->data[2] + (slice->mb_y << 4) * chroma_stride + (slice->mb_x << mb_x_shift);
- sf = av_clip(buf[1], 1, 224);
- sf = sf > 128 ? (sf - 96) << 2 : sf;
--
- if (ctx->frame_type && ctx->first_field ^ ctx->frame.top_field_first) {
- dest_y += pic->linesize[0];
- dest_u += pic->linesize[1];
- dest_v += pic->linesize[2];
- /* scale quantization matrixes according with slice's scale factor */
- /* TODO: this can be SIMD-optimized alot */
- if (ctx->qmat_changed || sf != ctx->prev_slice_sf) {
- ctx->prev_slice_sf = sf;
- for (i = 0; i < 64; i++) {
- ctx->qmat_luma_scaled[i] = ctx->qmat_luma[i] * sf;
- ctx->qmat_chroma_scaled[i] = ctx->qmat_chroma[i] * sf;
- }
-- }
--
- decode_slice_luma(avctx, slice, dest_y, luma_stride,
- buf, y_data_size, qmat_luma_scaled);
- /* decode luma plane */
- decode_slice_plane(ctx, buf + hdr_size, y_data_size,
- (uint16_t*) (y_data + (mb_y_pos << 4) * y_linesize +
- (mb_x_pos << 5)), y_linesize,
- mbs_per_slice, 4, slice_width_factor + 2,
- ctx->qmat_luma_scaled);
--
- if (!(avctx->flags & CODEC_FLAG_GRAY)) {
- decode_slice_chroma(avctx, slice, dest_u, chroma_stride,
- buf + y_data_size, u_data_size,
- qmat_chroma_scaled, log2_chroma_blocks_per_mb);
- decode_slice_chroma(avctx, slice, dest_v, chroma_stride,
- buf + y_data_size + u_data_size, v_data_size,
- qmat_chroma_scaled, log2_chroma_blocks_per_mb);
- }
- /* decode U chroma plane */
- decode_slice_plane(ctx, buf + hdr_size + y_data_size, u_data_size,
- (uint16_t*) (u_data + (mb_y_pos << 4) * u_linesize +
- (mb_x_pos << ctx->mb_chroma_factor)),
- u_linesize, mbs_per_slice, ctx->num_chroma_blocks,
- slice_width_factor + ctx->chroma_factor - 1,
- ctx->qmat_chroma_scaled);
-
- /* decode V chroma plane */
- decode_slice_plane(ctx, buf + hdr_size + y_data_size + u_data_size,
- v_data_size,
- (uint16_t*) (v_data + (mb_y_pos << 4) * v_linesize +
- (mb_x_pos << ctx->mb_chroma_factor)),
- v_linesize, mbs_per_slice, ctx->num_chroma_blocks,
- slice_width_factor + ctx->chroma_factor - 1,
- ctx->qmat_chroma_scaled);
--
-- return 0;
--}
--
- static int decode_picture(AVCodecContext *avctx)
-
-static int decode_picture(ProresContext *ctx, int pic_num,
- AVCodecContext *avctx)
--{
- ProresContext *ctx = avctx->priv_data;
- int i, threads_ret[ctx->slice_count];
- int slice_num, slice_width, x_pos, y_pos;
--
- avctx->execute2(avctx, decode_slice_thread, NULL, threads_ret, ctx->slice_count);
- slice_num = 0;
--
- for (i = 0; i < ctx->slice_count; i++)
- if (threads_ret[i] < 0)
- return threads_ret[i];
- for (y_pos = 0; y_pos < ctx->num_y_mbs; y_pos++) {
- slice_width = 1 << ctx->slice_width_factor;
-
- for (x_pos = 0; x_pos < ctx->num_x_mbs && slice_width;
- x_pos += slice_width) {
- while (ctx->num_x_mbs - x_pos < slice_width)
- slice_width >>= 1;
-
- if (decode_slice(ctx, pic_num, slice_num, x_pos, y_pos,
- slice_width, avctx) < 0)
- return -1;
-
- slice_num++;
- }
- }
--
-- return 0;
--}
-
-
-#define FRAME_ID MKBETAG('i', 'c', 'p', 'f')
-#define MOVE_DATA_PTR(nbytes) buf += (nbytes); buf_size -= (nbytes)
--
--static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
-- AVPacket *avpkt)
--{
-- ProresContext *ctx = avctx->priv_data;
- AVFrame *frame = avctx->coded_frame;
- AVFrame *picture = avctx->coded_frame;
-- const uint8_t *buf = avpkt->data;
- int buf_size = avpkt->size;
- int frame_hdr_size, pic_size;
- int buf_size = avpkt->size;
- int frame_hdr_size, pic_num, pic_data_size;
--
- if (buf_size < 28 || AV_RL32(buf + 4) != AV_RL32("icpf")) {
- av_log(avctx, AV_LOG_ERROR, "invalid frame header\n");
- /* check frame atom container */
- if (buf_size < 28 || buf_size < AV_RB32(buf) ||
- AV_RB32(buf + 4) != FRAME_ID) {
- av_log(avctx, AV_LOG_ERROR, "invalid frame\n");
-- return -1;
-- }
-
- ctx->first_field = 1;
--
- buf += 8;
- buf_size -= 8;
- MOVE_DATA_PTR(8);
--
-- frame_hdr_size = decode_frame_header(ctx, buf, buf_size, avctx);
-- if (frame_hdr_size < 0)
-- return -1;
-
- buf += frame_hdr_size;
- buf_size -= frame_hdr_size;
--
- decode_picture:
- pic_size = decode_picture_header(avctx, buf, buf_size);
- if (pic_size < 0) {
- av_log(avctx, AV_LOG_ERROR, "error decoding picture header\n");
- return -1;
- }
- MOVE_DATA_PTR(frame_hdr_size);
--
- if (frame->data[0])
- avctx->release_buffer(avctx, frame);
- if (picture->data[0])
- avctx->release_buffer(avctx, picture);
--
- if (avctx->get_buffer(avctx, frame) < 0)
- picture->reference = 0;
- if (avctx->get_buffer(avctx, picture) < 0)
-- return -1;
--
- if (decode_picture(avctx)) {
- av_log(avctx, AV_LOG_ERROR, "error decoding picture\n");
- return -1;
- }
- for (pic_num = 0; ctx->picture.interlaced_frame - pic_num + 1; pic_num++) {
- pic_data_size = decode_picture_header(ctx, buf, buf_size, avctx);
- if (pic_data_size < 0)
- return -1;
--
- buf += pic_size;
- buf_size -= pic_size;
- if (decode_picture(ctx, pic_num, avctx))
- return -1;
--
- if (ctx->frame_type && buf_size > 0 && ctx->first_field) {
- ctx->first_field = 0;
- goto decode_picture;
- MOVE_DATA_PTR(pic_data_size);
-- }
--
- *data_size = sizeof(AVFrame);
- *(AVFrame*)data = *frame;
- *data_size = sizeof(AVPicture);
- *(AVFrame*) data = *avctx->coded_frame;
--
-- return avpkt->size;
--}
-
--
--static av_cold int decode_close(AVCodecContext *avctx)
--{
-- ProresContext *ctx = avctx->priv_data;
--
- AVFrame *frame = avctx->coded_frame;
- if (frame->data[0])
- avctx->release_buffer(avctx, frame);
- av_freep(&ctx->slices);
- if (ctx->picture.data[0])
- avctx->release_buffer(avctx, &ctx->picture);
-
- av_freep(&ctx->slice_data_index);
--
-- return 0;
--}
-
--
--AVCodec ff_prores_decoder = {
- .name = "prores",
- .name = "ProRes",
-- .type = AVMEDIA_TYPE_VIDEO,
-- .id = CODEC_ID_PRORES,
-- .priv_data_size = sizeof(ProresContext),
-- .init = decode_init,
-- .close = decode_close,
-- .decode = decode_frame,
- .long_name = NULL_IF_CONFIG_SMALL("ProRes"),
- .capabilities = CODEC_CAP_SLICE_THREADS,
- .capabilities = CODEC_CAP_DR1,
- .long_name = NULL_IF_CONFIG_SMALL("Apple ProRes (iCodec Pro)")
--};