--- /dev/null
- if (c->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)
+/*
+ * Copyright (c) 2003 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/**
+ * @file
+ * libavformat API example.
+ *
+ * Output a media file in any supported libavformat format. The default
+ * codecs are used.
+ * @example muxing.c
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <math.h>
+
+#include <libavutil/avassert.h>
+#include <libavutil/channel_layout.h>
+#include <libavutil/opt.h>
+#include <libavutil/mathematics.h>
+#include <libavutil/timestamp.h>
+#include <libavformat/avformat.h>
+#include <libswscale/swscale.h>
+#include <libswresample/swresample.h>
+
+#define STREAM_DURATION 10.0
+#define STREAM_FRAME_RATE 25 /* 25 images/s */
+#define STREAM_PIX_FMT AV_PIX_FMT_YUV420P /* default pix_fmt */
+
+#define SCALE_FLAGS SWS_BICUBIC
+
+// a wrapper around a single output AVStream
+typedef struct OutputStream {
+ AVStream *st;
+
+ /* pts of the next frame that will be generated */
+ int64_t next_pts;
+ int samples_count;
+
+ AVFrame *frame;
+ AVFrame *tmp_frame;
+
+ float t, tincr, tincr2;
+
+ struct SwsContext *sws_ctx;
+ struct SwrContext *swr_ctx;
+} OutputStream;
+
+static void log_packet(const AVFormatContext *fmt_ctx, const AVPacket *pkt)
+{
+ AVRational *time_base = &fmt_ctx->streams[pkt->stream_index]->time_base;
+
+ printf("pts:%s pts_time:%s dts:%s dts_time:%s duration:%s duration_time:%s stream_index:%d\n",
+ av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, time_base),
+ av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, time_base),
+ av_ts2str(pkt->duration), av_ts2timestr(pkt->duration, time_base),
+ pkt->stream_index);
+}
+
+static int write_frame(AVFormatContext *fmt_ctx, const AVRational *time_base, AVStream *st, AVPacket *pkt)
+{
+ /* rescale output packet timestamp values from codec to stream timebase */
+ av_packet_rescale_ts(pkt, *time_base, st->time_base);
+ pkt->stream_index = st->index;
+
+ /* Write the compressed frame to the media file. */
+ log_packet(fmt_ctx, pkt);
+ return av_interleaved_write_frame(fmt_ctx, pkt);
+}
+
+/* Add an output stream. */
+static void add_stream(OutputStream *ost, AVFormatContext *oc,
+ AVCodec **codec,
+ enum AVCodecID codec_id)
+{
+ AVCodecContext *c;
+ int i;
+
+ /* find the encoder */
+ *codec = avcodec_find_encoder(codec_id);
+ if (!(*codec)) {
+ fprintf(stderr, "Could not find encoder for '%s'\n",
+ avcodec_get_name(codec_id));
+ exit(1);
+ }
+
+ ost->st = avformat_new_stream(oc, *codec);
+ if (!ost->st) {
+ fprintf(stderr, "Could not allocate stream\n");
+ exit(1);
+ }
+ ost->st->id = oc->nb_streams-1;
+ c = ost->st->codec;
+
+ switch ((*codec)->type) {
+ case AVMEDIA_TYPE_AUDIO:
+ c->sample_fmt = (*codec)->sample_fmts ?
+ (*codec)->sample_fmts[0] : AV_SAMPLE_FMT_FLTP;
+ c->bit_rate = 64000;
+ c->sample_rate = 44100;
+ if ((*codec)->supported_samplerates) {
+ c->sample_rate = (*codec)->supported_samplerates[0];
+ for (i = 0; (*codec)->supported_samplerates[i]; i++) {
+ if ((*codec)->supported_samplerates[i] == 44100)
+ c->sample_rate = 44100;
+ }
+ }
+ c->channels = av_get_channel_layout_nb_channels(c->channel_layout);
+ c->channel_layout = AV_CH_LAYOUT_STEREO;
+ if ((*codec)->channel_layouts) {
+ c->channel_layout = (*codec)->channel_layouts[0];
+ for (i = 0; (*codec)->channel_layouts[i]; i++) {
+ if ((*codec)->channel_layouts[i] == AV_CH_LAYOUT_STEREO)
+ c->channel_layout = AV_CH_LAYOUT_STEREO;
+ }
+ }
+ c->channels = av_get_channel_layout_nb_channels(c->channel_layout);
+ ost->st->time_base = (AVRational){ 1, c->sample_rate };
+ break;
+
+ case AVMEDIA_TYPE_VIDEO:
+ c->codec_id = codec_id;
+
+ c->bit_rate = 400000;
+ /* Resolution must be a multiple of two. */
+ c->width = 352;
+ c->height = 288;
+ /* timebase: This is the fundamental unit of time (in seconds) in terms
+ * of which frame timestamps are represented. For fixed-fps content,
+ * timebase should be 1/framerate and timestamp increments should be
+ * identical to 1. */
+ ost->st->time_base = (AVRational){ 1, STREAM_FRAME_RATE };
+ c->time_base = ost->st->time_base;
+
+ c->gop_size = 12; /* emit one intra frame every twelve frames at most */
+ c->pix_fmt = STREAM_PIX_FMT;
+ if (c->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
+ /* just for testing, we also add B frames */
+ c->max_b_frames = 2;
+ }
+ if (c->codec_id == AV_CODEC_ID_MPEG1VIDEO) {
+ /* Needed to avoid using macroblocks in which some coeffs overflow.
+ * This does not happen with normal video, it just happens here as
+ * the motion of the chroma plane does not match the luma plane. */
+ c->mb_decision = 2;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ /* Some formats want stream headers to be separate. */
+ if (oc->oformat->flags & AVFMT_GLOBALHEADER)
+ c->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
+}
+
+/**************************************************************/
+/* audio output */
+
+static AVFrame *alloc_audio_frame(enum AVSampleFormat sample_fmt,
+ uint64_t channel_layout,
+ int sample_rate, int nb_samples)
+{
+ AVFrame *frame = av_frame_alloc();
+ int ret;
+
+ if (!frame) {
+ fprintf(stderr, "Error allocating an audio frame\n");
+ exit(1);
+ }
+
+ frame->format = sample_fmt;
+ frame->channel_layout = channel_layout;
+ frame->sample_rate = sample_rate;
+ frame->nb_samples = nb_samples;
+
+ if (nb_samples) {
+ ret = av_frame_get_buffer(frame, 0);
+ if (ret < 0) {
+ fprintf(stderr, "Error allocating an audio buffer\n");
+ exit(1);
+ }
+ }
+
+ return frame;
+}
+
+static void open_audio(AVFormatContext *oc, AVCodec *codec, OutputStream *ost, AVDictionary *opt_arg)
+{
+ AVCodecContext *c;
+ int nb_samples;
+ int ret;
+ AVDictionary *opt = NULL;
+
+ c = ost->st->codec;
+
+ /* open it */
+ av_dict_copy(&opt, opt_arg, 0);
+ ret = avcodec_open2(c, codec, &opt);
+ av_dict_free(&opt);
+ if (ret < 0) {
+ fprintf(stderr, "Could not open audio codec: %s\n", av_err2str(ret));
+ exit(1);
+ }
+
+ /* init signal generator */
+ ost->t = 0;
+ ost->tincr = 2 * M_PI * 110.0 / c->sample_rate;
+ /* increment frequency by 110 Hz per second */
+ ost->tincr2 = 2 * M_PI * 110.0 / c->sample_rate / c->sample_rate;
+
++ if (c->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)
+ nb_samples = 10000;
+ else
+ nb_samples = c->frame_size;
+
+ ost->frame = alloc_audio_frame(c->sample_fmt, c->channel_layout,
+ c->sample_rate, nb_samples);
+ ost->tmp_frame = alloc_audio_frame(AV_SAMPLE_FMT_S16, c->channel_layout,
+ c->sample_rate, nb_samples);
+
+ /* create resampler context */
+ ost->swr_ctx = swr_alloc();
+ if (!ost->swr_ctx) {
+ fprintf(stderr, "Could not allocate resampler context\n");
+ exit(1);
+ }
+
+ /* set options */
+ av_opt_set_int (ost->swr_ctx, "in_channel_count", c->channels, 0);
+ av_opt_set_int (ost->swr_ctx, "in_sample_rate", c->sample_rate, 0);
+ av_opt_set_sample_fmt(ost->swr_ctx, "in_sample_fmt", AV_SAMPLE_FMT_S16, 0);
+ av_opt_set_int (ost->swr_ctx, "out_channel_count", c->channels, 0);
+ av_opt_set_int (ost->swr_ctx, "out_sample_rate", c->sample_rate, 0);
+ av_opt_set_sample_fmt(ost->swr_ctx, "out_sample_fmt", c->sample_fmt, 0);
+
+ /* initialize the resampling context */
+ if ((ret = swr_init(ost->swr_ctx)) < 0) {
+ fprintf(stderr, "Failed to initialize the resampling context\n");
+ exit(1);
+ }
+}
+
+/* Prepare a 16 bit dummy audio frame of 'frame_size' samples and
+ * 'nb_channels' channels. */
+static AVFrame *get_audio_frame(OutputStream *ost)
+{
+ AVFrame *frame = ost->tmp_frame;
+ int j, i, v;
+ int16_t *q = (int16_t*)frame->data[0];
+
+ /* check if we want to generate more frames */
+ if (av_compare_ts(ost->next_pts, ost->st->codec->time_base,
+ STREAM_DURATION, (AVRational){ 1, 1 }) >= 0)
+ return NULL;
+
+ for (j = 0; j <frame->nb_samples; j++) {
+ v = (int)(sin(ost->t) * 10000);
+ for (i = 0; i < ost->st->codec->channels; i++)
+ *q++ = v;
+ ost->t += ost->tincr;
+ ost->tincr += ost->tincr2;
+ }
+
+ frame->pts = ost->next_pts;
+ ost->next_pts += frame->nb_samples;
+
+ return frame;
+}
+
+/*
+ * encode one audio frame and send it to the muxer
+ * return 1 when encoding is finished, 0 otherwise
+ */
+static int write_audio_frame(AVFormatContext *oc, OutputStream *ost)
+{
+ AVCodecContext *c;
+ AVPacket pkt = { 0 }; // data and size must be 0;
+ AVFrame *frame;
+ int ret;
+ int got_packet;
+ int dst_nb_samples;
+
+ av_init_packet(&pkt);
+ c = ost->st->codec;
+
+ frame = get_audio_frame(ost);
+
+ if (frame) {
+ /* convert samples from native format to destination codec format, using the resampler */
+ /* compute destination number of samples */
+ dst_nb_samples = av_rescale_rnd(swr_get_delay(ost->swr_ctx, c->sample_rate) + frame->nb_samples,
+ c->sample_rate, c->sample_rate, AV_ROUND_UP);
+ av_assert0(dst_nb_samples == frame->nb_samples);
+
+ /* when we pass a frame to the encoder, it may keep a reference to it
+ * internally;
+ * make sure we do not overwrite it here
+ */
+ ret = av_frame_make_writable(ost->frame);
+ if (ret < 0)
+ exit(1);
+
+ /* convert to destination format */
+ ret = swr_convert(ost->swr_ctx,
+ ost->frame->data, dst_nb_samples,
+ (const uint8_t **)frame->data, frame->nb_samples);
+ if (ret < 0) {
+ fprintf(stderr, "Error while converting\n");
+ exit(1);
+ }
+ frame = ost->frame;
+
+ frame->pts = av_rescale_q(ost->samples_count, (AVRational){1, c->sample_rate}, c->time_base);
+ ost->samples_count += dst_nb_samples;
+ }
+
+ ret = avcodec_encode_audio2(c, &pkt, frame, &got_packet);
+ if (ret < 0) {
+ fprintf(stderr, "Error encoding audio frame: %s\n", av_err2str(ret));
+ exit(1);
+ }
+
+ if (got_packet) {
+ ret = write_frame(oc, &c->time_base, ost->st, &pkt);
+ if (ret < 0) {
+ fprintf(stderr, "Error while writing audio frame: %s\n",
+ av_err2str(ret));
+ exit(1);
+ }
+ }
+
+ return (frame || got_packet) ? 0 : 1;
+}
+
+/**************************************************************/
+/* video output */
+
+static AVFrame *alloc_picture(enum AVPixelFormat pix_fmt, int width, int height)
+{
+ AVFrame *picture;
+ int ret;
+
+ picture = av_frame_alloc();
+ if (!picture)
+ return NULL;
+
+ picture->format = pix_fmt;
+ picture->width = width;
+ picture->height = height;
+
+ /* allocate the buffers for the frame data */
+ ret = av_frame_get_buffer(picture, 32);
+ if (ret < 0) {
+ fprintf(stderr, "Could not allocate frame data.\n");
+ exit(1);
+ }
+
+ return picture;
+}
+
+static void open_video(AVFormatContext *oc, AVCodec *codec, OutputStream *ost, AVDictionary *opt_arg)
+{
+ int ret;
+ AVCodecContext *c = ost->st->codec;
+ AVDictionary *opt = NULL;
+
+ av_dict_copy(&opt, opt_arg, 0);
+
+ /* open the codec */
+ ret = avcodec_open2(c, codec, &opt);
+ av_dict_free(&opt);
+ if (ret < 0) {
+ fprintf(stderr, "Could not open video codec: %s\n", av_err2str(ret));
+ exit(1);
+ }
+
+ /* allocate and init a re-usable frame */
+ ost->frame = alloc_picture(c->pix_fmt, c->width, c->height);
+ if (!ost->frame) {
+ fprintf(stderr, "Could not allocate video frame\n");
+ exit(1);
+ }
+
+ /* If the output format is not YUV420P, then a temporary YUV420P
+ * picture is needed too. It is then converted to the required
+ * output format. */
+ ost->tmp_frame = NULL;
+ if (c->pix_fmt != AV_PIX_FMT_YUV420P) {
+ ost->tmp_frame = alloc_picture(AV_PIX_FMT_YUV420P, c->width, c->height);
+ if (!ost->tmp_frame) {
+ fprintf(stderr, "Could not allocate temporary picture\n");
+ exit(1);
+ }
+ }
+}
+
+/* Prepare a dummy image. */
+static void fill_yuv_image(AVFrame *pict, int frame_index,
+ int width, int height)
+{
+ int x, y, i, ret;
+
+ /* when we pass a frame to the encoder, it may keep a reference to it
+ * internally;
+ * make sure we do not overwrite it here
+ */
+ ret = av_frame_make_writable(pict);
+ if (ret < 0)
+ exit(1);
+
+ i = frame_index;
+
+ /* Y */
+ for (y = 0; y < height; y++)
+ for (x = 0; x < width; x++)
+ pict->data[0][y * pict->linesize[0] + x] = x + y + i * 3;
+
+ /* Cb and Cr */
+ for (y = 0; y < height / 2; y++) {
+ for (x = 0; x < width / 2; x++) {
+ pict->data[1][y * pict->linesize[1] + x] = 128 + y + i * 2;
+ pict->data[2][y * pict->linesize[2] + x] = 64 + x + i * 5;
+ }
+ }
+}
+
+static AVFrame *get_video_frame(OutputStream *ost)
+{
+ AVCodecContext *c = ost->st->codec;
+
+ /* check if we want to generate more frames */
+ if (av_compare_ts(ost->next_pts, ost->st->codec->time_base,
+ STREAM_DURATION, (AVRational){ 1, 1 }) >= 0)
+ return NULL;
+
+ if (c->pix_fmt != AV_PIX_FMT_YUV420P) {
+ /* as we only generate a YUV420P picture, we must convert it
+ * to the codec pixel format if needed */
+ if (!ost->sws_ctx) {
+ ost->sws_ctx = sws_getContext(c->width, c->height,
+ AV_PIX_FMT_YUV420P,
+ c->width, c->height,
+ c->pix_fmt,
+ SCALE_FLAGS, NULL, NULL, NULL);
+ if (!ost->sws_ctx) {
+ fprintf(stderr,
+ "Could not initialize the conversion context\n");
+ exit(1);
+ }
+ }
+ fill_yuv_image(ost->tmp_frame, ost->next_pts, c->width, c->height);
+ sws_scale(ost->sws_ctx,
+ (const uint8_t * const *)ost->tmp_frame->data, ost->tmp_frame->linesize,
+ 0, c->height, ost->frame->data, ost->frame->linesize);
+ } else {
+ fill_yuv_image(ost->frame, ost->next_pts, c->width, c->height);
+ }
+
+ ost->frame->pts = ost->next_pts++;
+
+ return ost->frame;
+}
+
+/*
+ * encode one video frame and send it to the muxer
+ * return 1 when encoding is finished, 0 otherwise
+ */
+static int write_video_frame(AVFormatContext *oc, OutputStream *ost)
+{
+ int ret;
+ AVCodecContext *c;
+ AVFrame *frame;
+ int got_packet = 0;
+
+ c = ost->st->codec;
+
+ frame = get_video_frame(ost);
+
+ if (oc->oformat->flags & AVFMT_RAWPICTURE) {
+ /* a hack to avoid data copy with some raw video muxers */
+ AVPacket pkt;
+ av_init_packet(&pkt);
+
+ if (!frame)
+ return 1;
+
+ pkt.flags |= AV_PKT_FLAG_KEY;
+ pkt.stream_index = ost->st->index;
+ pkt.data = (uint8_t *)frame;
+ pkt.size = sizeof(AVPicture);
+
+ pkt.pts = pkt.dts = frame->pts;
+ av_packet_rescale_ts(&pkt, c->time_base, ost->st->time_base);
+
+ ret = av_interleaved_write_frame(oc, &pkt);
+ } else {
+ AVPacket pkt = { 0 };
+ av_init_packet(&pkt);
+
+ /* encode the image */
+ ret = avcodec_encode_video2(c, &pkt, frame, &got_packet);
+ if (ret < 0) {
+ fprintf(stderr, "Error encoding video frame: %s\n", av_err2str(ret));
+ exit(1);
+ }
+
+ if (got_packet) {
+ ret = write_frame(oc, &c->time_base, ost->st, &pkt);
+ } else {
+ ret = 0;
+ }
+ }
+
+ if (ret < 0) {
+ fprintf(stderr, "Error while writing video frame: %s\n", av_err2str(ret));
+ exit(1);
+ }
+
+ return (frame || got_packet) ? 0 : 1;
+}
+
+static void close_stream(AVFormatContext *oc, OutputStream *ost)
+{
+ avcodec_close(ost->st->codec);
+ av_frame_free(&ost->frame);
+ av_frame_free(&ost->tmp_frame);
+ sws_freeContext(ost->sws_ctx);
+ swr_free(&ost->swr_ctx);
+}
+
+/**************************************************************/
+/* media file output */
+
+int main(int argc, char **argv)
+{
+ OutputStream video_st = { 0 }, audio_st = { 0 };
+ const char *filename;
+ AVOutputFormat *fmt;
+ AVFormatContext *oc;
+ AVCodec *audio_codec, *video_codec;
+ int ret;
+ int have_video = 0, have_audio = 0;
+ int encode_video = 0, encode_audio = 0;
+ AVDictionary *opt = NULL;
+
+ /* Initialize libavcodec, and register all codecs and formats. */
+ av_register_all();
+
+ if (argc < 2) {
+ printf("usage: %s output_file\n"
+ "API example program to output a media file with libavformat.\n"
+ "This program generates a synthetic audio and video stream, encodes and\n"
+ "muxes them into a file named output_file.\n"
+ "The output format is automatically guessed according to the file extension.\n"
+ "Raw images can also be output by using '%%d' in the filename.\n"
+ "\n", argv[0]);
+ return 1;
+ }
+
+ filename = argv[1];
+ if (argc > 3 && !strcmp(argv[2], "-flags")) {
+ av_dict_set(&opt, argv[2]+1, argv[3], 0);
+ }
+
+ /* allocate the output media context */
+ avformat_alloc_output_context2(&oc, NULL, NULL, filename);
+ if (!oc) {
+ printf("Could not deduce output format from file extension: using MPEG.\n");
+ avformat_alloc_output_context2(&oc, NULL, "mpeg", filename);
+ }
+ if (!oc)
+ return 1;
+
+ fmt = oc->oformat;
+
+ /* Add the audio and video streams using the default format codecs
+ * and initialize the codecs. */
+ if (fmt->video_codec != AV_CODEC_ID_NONE) {
+ add_stream(&video_st, oc, &video_codec, fmt->video_codec);
+ have_video = 1;
+ encode_video = 1;
+ }
+ if (fmt->audio_codec != AV_CODEC_ID_NONE) {
+ add_stream(&audio_st, oc, &audio_codec, fmt->audio_codec);
+ have_audio = 1;
+ encode_audio = 1;
+ }
+
+ /* Now that all the parameters are set, we can open the audio and
+ * video codecs and allocate the necessary encode buffers. */
+ if (have_video)
+ open_video(oc, video_codec, &video_st, opt);
+
+ if (have_audio)
+ open_audio(oc, audio_codec, &audio_st, opt);
+
+ av_dump_format(oc, 0, filename, 1);
+
+ /* open the output file, if needed */
+ if (!(fmt->flags & AVFMT_NOFILE)) {
+ ret = avio_open(&oc->pb, filename, AVIO_FLAG_WRITE);
+ if (ret < 0) {
+ fprintf(stderr, "Could not open '%s': %s\n", filename,
+ av_err2str(ret));
+ return 1;
+ }
+ }
+
+ /* Write the stream header, if any. */
+ ret = avformat_write_header(oc, &opt);
+ if (ret < 0) {
+ fprintf(stderr, "Error occurred when opening output file: %s\n",
+ av_err2str(ret));
+ return 1;
+ }
+
+ while (encode_video || encode_audio) {
+ /* select the stream to encode */
+ if (encode_video &&
+ (!encode_audio || av_compare_ts(video_st.next_pts, video_st.st->codec->time_base,
+ audio_st.next_pts, audio_st.st->codec->time_base) <= 0)) {
+ encode_video = !write_video_frame(oc, &video_st);
+ } else {
+ encode_audio = !write_audio_frame(oc, &audio_st);
+ }
+ }
+
+ /* Write the trailer, if any. The trailer must be written before you
+ * close the CodecContexts open when you wrote the header; otherwise
+ * av_write_trailer() may try to use memory that was freed on
+ * av_codec_close(). */
+ av_write_trailer(oc);
+
+ /* Close each codec. */
+ if (have_video)
+ close_stream(oc, &video_st);
+ if (have_audio)
+ close_stream(oc, &audio_st);
+
+ if (!(fmt->flags & AVFMT_NOFILE))
+ /* Close the output file. */
+ avio_closep(&oc->pb);
+
+ /* free the stream */
+ avformat_free_context(oc);
+
+ return 0;
+}
--- /dev/null
- if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
+/*
+ * Copyright (c) 2000-2003 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
+ */
+
+/**
+ * @file
+ * multimedia converter based on the FFmpeg libraries
+ */
+
+#include "config.h"
+#include <ctype.h>
+#include <string.h>
+#include <math.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <limits.h>
+#include <stdint.h>
+
+#if HAVE_ISATTY
+#if HAVE_IO_H
+#include <io.h>
+#endif
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#endif
+
+#include "libavformat/avformat.h"
+#include "libavdevice/avdevice.h"
+#include "libswresample/swresample.h"
+#include "libavutil/opt.h"
+#include "libavutil/channel_layout.h"
+#include "libavutil/parseutils.h"
+#include "libavutil/samplefmt.h"
+#include "libavutil/fifo.h"
+#include "libavutil/internal.h"
+#include "libavutil/intreadwrite.h"
+#include "libavutil/dict.h"
+#include "libavutil/mathematics.h"
+#include "libavutil/pixdesc.h"
+#include "libavutil/avstring.h"
+#include "libavutil/libm.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/timestamp.h"
+#include "libavutil/bprint.h"
+#include "libavutil/time.h"
+#include "libavutil/threadmessage.h"
+#include "libavcodec/mathops.h"
+#include "libavformat/os_support.h"
+
+# include "libavfilter/avcodec.h"
+# include "libavfilter/avfilter.h"
+# include "libavfilter/buffersrc.h"
+# include "libavfilter/buffersink.h"
+
+#if HAVE_SYS_RESOURCE_H
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/resource.h>
+#elif HAVE_GETPROCESSTIMES
+#include <windows.h>
+#endif
+#if HAVE_GETPROCESSMEMORYINFO
+#include <windows.h>
+#include <psapi.h>
+#endif
+#if HAVE_SETCONSOLECTRLHANDLER
+#include <windows.h>
+#endif
+
+
+#if HAVE_SYS_SELECT_H
+#include <sys/select.h>
+#endif
+
+#if HAVE_TERMIOS_H
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/time.h>
+#include <termios.h>
+#elif HAVE_KBHIT
+#include <conio.h>
+#endif
+
+#if HAVE_PTHREADS
+#include <pthread.h>
+#endif
+
+#include <time.h>
+
+#include "ffmpeg.h"
+#include "cmdutils.h"
+
+#include "libavutil/avassert.h"
+
+const char program_name[] = "ffmpeg";
+const int program_birth_year = 2000;
+
+static FILE *vstats_file;
+
+const char *const forced_keyframes_const_names[] = {
+ "n",
+ "n_forced",
+ "prev_forced_n",
+ "prev_forced_t",
+ "t",
+ NULL
+};
+
+static void do_video_stats(OutputStream *ost, int frame_size);
+static int64_t getutime(void);
+static int64_t getmaxrss(void);
+
+static int run_as_daemon = 0;
+static int nb_frames_dup = 0;
+static int nb_frames_drop = 0;
+static int64_t decode_error_stat[2];
+
+static int current_time;
+AVIOContext *progress_avio = NULL;
+
+static uint8_t *subtitle_out;
+
+InputStream **input_streams = NULL;
+int nb_input_streams = 0;
+InputFile **input_files = NULL;
+int nb_input_files = 0;
+
+OutputStream **output_streams = NULL;
+int nb_output_streams = 0;
+OutputFile **output_files = NULL;
+int nb_output_files = 0;
+
+FilterGraph **filtergraphs;
+int nb_filtergraphs;
+
+#if HAVE_TERMIOS_H
+
+/* init terminal so that we can grab keys */
+static struct termios oldtty;
+static int restore_tty;
+#endif
+
+#if HAVE_PTHREADS
+static void free_input_threads(void);
+#endif
+
+/* sub2video hack:
+ Convert subtitles to video with alpha to insert them in filter graphs.
+ This is a temporary solution until libavfilter gets real subtitles support.
+ */
+
+static int sub2video_get_blank_frame(InputStream *ist)
+{
+ int ret;
+ AVFrame *frame = ist->sub2video.frame;
+
+ av_frame_unref(frame);
+ ist->sub2video.frame->width = ist->sub2video.w;
+ ist->sub2video.frame->height = ist->sub2video.h;
+ ist->sub2video.frame->format = AV_PIX_FMT_RGB32;
+ if ((ret = av_frame_get_buffer(frame, 32)) < 0)
+ return ret;
+ memset(frame->data[0], 0, frame->height * frame->linesize[0]);
+ return 0;
+}
+
+static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h,
+ AVSubtitleRect *r)
+{
+ uint32_t *pal, *dst2;
+ uint8_t *src, *src2;
+ int x, y;
+
+ if (r->type != SUBTITLE_BITMAP) {
+ av_log(NULL, AV_LOG_WARNING, "sub2video: non-bitmap subtitle\n");
+ return;
+ }
+ if (r->x < 0 || r->x + r->w > w || r->y < 0 || r->y + r->h > h) {
+ av_log(NULL, AV_LOG_WARNING, "sub2video: rectangle overflowing\n");
+ return;
+ }
+
+ dst += r->y * dst_linesize + r->x * 4;
+ src = r->pict.data[0];
+ pal = (uint32_t *)r->pict.data[1];
+ for (y = 0; y < r->h; y++) {
+ dst2 = (uint32_t *)dst;
+ src2 = src;
+ for (x = 0; x < r->w; x++)
+ *(dst2++) = pal[*(src2++)];
+ dst += dst_linesize;
+ src += r->pict.linesize[0];
+ }
+}
+
+static void sub2video_push_ref(InputStream *ist, int64_t pts)
+{
+ AVFrame *frame = ist->sub2video.frame;
+ int i;
+
+ av_assert1(frame->data[0]);
+ ist->sub2video.last_pts = frame->pts = pts;
+ for (i = 0; i < ist->nb_filters; i++)
+ av_buffersrc_add_frame_flags(ist->filters[i]->filter, frame,
+ AV_BUFFERSRC_FLAG_KEEP_REF |
+ AV_BUFFERSRC_FLAG_PUSH);
+}
+
+static void sub2video_update(InputStream *ist, AVSubtitle *sub)
+{
+ int w = ist->sub2video.w, h = ist->sub2video.h;
+ AVFrame *frame = ist->sub2video.frame;
+ int8_t *dst;
+ int dst_linesize;
+ int num_rects, i;
+ int64_t pts, end_pts;
+
+ if (!frame)
+ return;
+ if (sub) {
+ pts = av_rescale_q(sub->pts + sub->start_display_time * 1000LL,
+ AV_TIME_BASE_Q, ist->st->time_base);
+ end_pts = av_rescale_q(sub->pts + sub->end_display_time * 1000LL,
+ AV_TIME_BASE_Q, ist->st->time_base);
+ num_rects = sub->num_rects;
+ } else {
+ pts = ist->sub2video.end_pts;
+ end_pts = INT64_MAX;
+ num_rects = 0;
+ }
+ if (sub2video_get_blank_frame(ist) < 0) {
+ av_log(ist->dec_ctx, AV_LOG_ERROR,
+ "Impossible to get a blank canvas.\n");
+ return;
+ }
+ dst = frame->data [0];
+ dst_linesize = frame->linesize[0];
+ for (i = 0; i < num_rects; i++)
+ sub2video_copy_rect(dst, dst_linesize, w, h, sub->rects[i]);
+ sub2video_push_ref(ist, pts);
+ ist->sub2video.end_pts = end_pts;
+}
+
+static void sub2video_heartbeat(InputStream *ist, int64_t pts)
+{
+ InputFile *infile = input_files[ist->file_index];
+ int i, j, nb_reqs;
+ int64_t pts2;
+
+ /* When a frame is read from a file, examine all sub2video streams in
+ the same file and send the sub2video frame again. Otherwise, decoded
+ video frames could be accumulating in the filter graph while a filter
+ (possibly overlay) is desperately waiting for a subtitle frame. */
+ for (i = 0; i < infile->nb_streams; i++) {
+ InputStream *ist2 = input_streams[infile->ist_index + i];
+ if (!ist2->sub2video.frame)
+ continue;
+ /* subtitles seem to be usually muxed ahead of other streams;
+ if not, subtracting a larger time here is necessary */
+ pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1;
+ /* do not send the heartbeat frame if the subtitle is already ahead */
+ if (pts2 <= ist2->sub2video.last_pts)
+ continue;
+ if (pts2 >= ist2->sub2video.end_pts || !ist2->sub2video.frame->data[0])
+ sub2video_update(ist2, NULL);
+ for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++)
+ nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter);
+ if (nb_reqs)
+ sub2video_push_ref(ist2, pts2);
+ }
+}
+
+static void sub2video_flush(InputStream *ist)
+{
+ int i;
+
+ if (ist->sub2video.end_pts < INT64_MAX)
+ sub2video_update(ist, NULL);
+ for (i = 0; i < ist->nb_filters; i++)
+ av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
+}
+
+/* end of sub2video hack */
+
+static void term_exit_sigsafe(void)
+{
+#if HAVE_TERMIOS_H
+ if(restore_tty)
+ tcsetattr (0, TCSANOW, &oldtty);
+#endif
+}
+
+void term_exit(void)
+{
+ av_log(NULL, AV_LOG_QUIET, "%s", "");
+ term_exit_sigsafe();
+}
+
+static volatile int received_sigterm = 0;
+static volatile int received_nb_signals = 0;
+static volatile int transcode_init_done = 0;
+static volatile int ffmpeg_exited = 0;
+static int main_return_code = 0;
+
+static void
+sigterm_handler(int sig)
+{
+ received_sigterm = sig;
+ received_nb_signals++;
+ term_exit_sigsafe();
+ if(received_nb_signals > 3) {
+ write(2/*STDERR_FILENO*/, "Received > 3 system signals, hard exiting\n",
+ strlen("Received > 3 system signals, hard exiting\n"));
+
+ exit(123);
+ }
+}
+
+#if HAVE_SETCONSOLECTRLHANDLER
+static BOOL WINAPI CtrlHandler(DWORD fdwCtrlType)
+{
+ av_log(NULL, AV_LOG_DEBUG, "\nReceived windows signal %ld\n", fdwCtrlType);
+
+ switch (fdwCtrlType)
+ {
+ case CTRL_C_EVENT:
+ case CTRL_BREAK_EVENT:
+ sigterm_handler(SIGINT);
+ return TRUE;
+
+ case CTRL_CLOSE_EVENT:
+ case CTRL_LOGOFF_EVENT:
+ case CTRL_SHUTDOWN_EVENT:
+ sigterm_handler(SIGTERM);
+ /* Basically, with these 3 events, when we return from this method the
+ process is hard terminated, so stall as long as we need to
+ to try and let the main thread(s) clean up and gracefully terminate
+ (we have at most 5 seconds, but should be done far before that). */
+ while (!ffmpeg_exited) {
+ Sleep(0);
+ }
+ return TRUE;
+
+ default:
+ av_log(NULL, AV_LOG_ERROR, "Received unknown windows signal %ld\n", fdwCtrlType);
+ return FALSE;
+ }
+}
+#endif
+
+void term_init(void)
+{
+#if HAVE_TERMIOS_H
+ if(!run_as_daemon){
+ struct termios tty;
+ int istty = 1;
+#if HAVE_ISATTY
+ istty = isatty(0) && isatty(2);
+#endif
+ if (istty && tcgetattr (0, &tty) == 0) {
+ oldtty = tty;
+ restore_tty = 1;
+
+ tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
+ |INLCR|IGNCR|ICRNL|IXON);
+ tty.c_oflag |= OPOST;
+ tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
+ tty.c_cflag &= ~(CSIZE|PARENB);
+ tty.c_cflag |= CS8;
+ tty.c_cc[VMIN] = 1;
+ tty.c_cc[VTIME] = 0;
+
+ tcsetattr (0, TCSANOW, &tty);
+ }
+ signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
+ }
+#endif
+
+ signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
+ signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
+#ifdef SIGXCPU
+ signal(SIGXCPU, sigterm_handler);
+#endif
+#if HAVE_SETCONSOLECTRLHANDLER
+ SetConsoleCtrlHandler((PHANDLER_ROUTINE) CtrlHandler, TRUE);
+#endif
+}
+
+/* read a key without blocking */
+static int read_key(void)
+{
+ unsigned char ch;
+#if HAVE_TERMIOS_H
+ int n = 1;
+ struct timeval tv;
+ fd_set rfds;
+
+ FD_ZERO(&rfds);
+ FD_SET(0, &rfds);
+ tv.tv_sec = 0;
+ tv.tv_usec = 0;
+ n = select(1, &rfds, NULL, NULL, &tv);
+ if (n > 0) {
+ n = read(0, &ch, 1);
+ if (n == 1)
+ return ch;
+
+ return n;
+ }
+#elif HAVE_KBHIT
+# if HAVE_PEEKNAMEDPIPE
+ static int is_pipe;
+ static HANDLE input_handle;
+ DWORD dw, nchars;
+ if(!input_handle){
+ input_handle = GetStdHandle(STD_INPUT_HANDLE);
+ is_pipe = !GetConsoleMode(input_handle, &dw);
+ }
+
+ if (stdin->_cnt > 0) {
+ read(0, &ch, 1);
+ return ch;
+ }
+ if (is_pipe) {
+ /* When running under a GUI, you will end here. */
+ if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL)) {
+ // input pipe may have been closed by the program that ran ffmpeg
+ return -1;
+ }
+ //Read it
+ if(nchars != 0) {
+ read(0, &ch, 1);
+ return ch;
+ }else{
+ return -1;
+ }
+ }
+# endif
+ if(kbhit())
+ return(getch());
+#endif
+ return -1;
+}
+
+static int decode_interrupt_cb(void *ctx)
+{
+ return received_nb_signals > transcode_init_done;
+}
+
+const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
+
+static void ffmpeg_cleanup(int ret)
+{
+ int i, j;
+
+ if (do_benchmark) {
+ int maxrss = getmaxrss() / 1024;
+ av_log(NULL, AV_LOG_INFO, "bench: maxrss=%ikB\n", maxrss);
+ }
+
+ for (i = 0; i < nb_filtergraphs; i++) {
+ FilterGraph *fg = filtergraphs[i];
+ avfilter_graph_free(&fg->graph);
+ for (j = 0; j < fg->nb_inputs; j++) {
+ av_freep(&fg->inputs[j]->name);
+ av_freep(&fg->inputs[j]);
+ }
+ av_freep(&fg->inputs);
+ for (j = 0; j < fg->nb_outputs; j++) {
+ av_freep(&fg->outputs[j]->name);
+ av_freep(&fg->outputs[j]);
+ }
+ av_freep(&fg->outputs);
+ av_freep(&fg->graph_desc);
+
+ av_freep(&filtergraphs[i]);
+ }
+ av_freep(&filtergraphs);
+
+ av_freep(&subtitle_out);
+
+ /* close files */
+ for (i = 0; i < nb_output_files; i++) {
+ OutputFile *of = output_files[i];
+ AVFormatContext *s;
+ if (!of)
+ continue;
+ s = of->ctx;
+ if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE))
+ avio_closep(&s->pb);
+ avformat_free_context(s);
+ av_dict_free(&of->opts);
+
+ av_freep(&output_files[i]);
+ }
+ for (i = 0; i < nb_output_streams; i++) {
+ OutputStream *ost = output_streams[i];
+ AVBitStreamFilterContext *bsfc;
+
+ if (!ost)
+ continue;
+
+ bsfc = ost->bitstream_filters;
+ while (bsfc) {
+ AVBitStreamFilterContext *next = bsfc->next;
+ av_bitstream_filter_close(bsfc);
+ bsfc = next;
+ }
+ ost->bitstream_filters = NULL;
+ av_frame_free(&ost->filtered_frame);
+ av_frame_free(&ost->last_frame);
+
+ av_parser_close(ost->parser);
+
+ av_freep(&ost->forced_keyframes);
+ av_expr_free(ost->forced_keyframes_pexpr);
+ av_freep(&ost->avfilter);
+ av_freep(&ost->logfile_prefix);
+
+ av_freep(&ost->audio_channels_map);
+ ost->audio_channels_mapped = 0;
+
+ avcodec_free_context(&ost->enc_ctx);
+
+ av_freep(&output_streams[i]);
+ }
+#if HAVE_PTHREADS
+ free_input_threads();
+#endif
+ for (i = 0; i < nb_input_files; i++) {
+ avformat_close_input(&input_files[i]->ctx);
+ av_freep(&input_files[i]);
+ }
+ for (i = 0; i < nb_input_streams; i++) {
+ InputStream *ist = input_streams[i];
+
+ av_frame_free(&ist->decoded_frame);
+ av_frame_free(&ist->filter_frame);
+ av_dict_free(&ist->decoder_opts);
+ avsubtitle_free(&ist->prev_sub.subtitle);
+ av_frame_free(&ist->sub2video.frame);
+ av_freep(&ist->filters);
+ av_freep(&ist->hwaccel_device);
+
+ avcodec_free_context(&ist->dec_ctx);
+
+ av_freep(&input_streams[i]);
+ }
+
+ if (vstats_file)
+ fclose(vstats_file);
+ av_freep(&vstats_filename);
+
+ av_freep(&input_streams);
+ av_freep(&input_files);
+ av_freep(&output_streams);
+ av_freep(&output_files);
+
+ uninit_opts();
+
+ avformat_network_deinit();
+
+ if (received_sigterm) {
+ av_log(NULL, AV_LOG_INFO, "Exiting normally, received signal %d.\n",
+ (int) received_sigterm);
+ } else if (ret && transcode_init_done) {
+ av_log(NULL, AV_LOG_INFO, "Conversion failed!\n");
+ }
+ term_exit();
+ ffmpeg_exited = 1;
+}
+
+void remove_avoptions(AVDictionary **a, AVDictionary *b)
+{
+ AVDictionaryEntry *t = NULL;
+
+ while ((t = av_dict_get(b, "", t, AV_DICT_IGNORE_SUFFIX))) {
+ av_dict_set(a, t->key, NULL, AV_DICT_MATCH_CASE);
+ }
+}
+
+void assert_avoptions(AVDictionary *m)
+{
+ AVDictionaryEntry *t;
+ if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
+ av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
+ exit_program(1);
+ }
+}
+
+static void abort_codec_experimental(AVCodec *c, int encoder)
+{
+ exit_program(1);
+}
+
+static void update_benchmark(const char *fmt, ...)
+{
+ if (do_benchmark_all) {
+ int64_t t = getutime();
+ va_list va;
+ char buf[1024];
+
+ if (fmt) {
+ va_start(va, fmt);
+ vsnprintf(buf, sizeof(buf), fmt, va);
+ va_end(va);
+ av_log(NULL, AV_LOG_INFO, "bench: %8"PRIu64" %s \n", t - current_time, buf);
+ }
+ current_time = t;
+ }
+}
+
+static void close_all_output_streams(OutputStream *ost, OSTFinished this_stream, OSTFinished others)
+{
+ int i;
+ for (i = 0; i < nb_output_streams; i++) {
+ OutputStream *ost2 = output_streams[i];
+ ost2->finished |= ost == ost2 ? this_stream : others;
+ }
+}
+
+static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
+{
+ AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
+ AVCodecContext *avctx = ost->encoding_needed ? ost->enc_ctx : ost->st->codec;
+ int ret;
+
+ if (!ost->st->codec->extradata_size && ost->enc_ctx->extradata_size) {
+ ost->st->codec->extradata = av_mallocz(ost->enc_ctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
+ if (ost->st->codec->extradata) {
+ memcpy(ost->st->codec->extradata, ost->enc_ctx->extradata, ost->enc_ctx->extradata_size);
+ ost->st->codec->extradata_size = ost->enc_ctx->extradata_size;
+ }
+ }
+
+ if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
+ (avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
+ pkt->pts = pkt->dts = AV_NOPTS_VALUE;
+
+ /*
+ * Audio encoders may split the packets -- #frames in != #packets out.
+ * But there is no reordering, so we can limit the number of output packets
+ * by simply dropping them here.
+ * Counting encoded video frames needs to be done separately because of
+ * reordering, see do_video_out()
+ */
+ if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
+ if (ost->frame_number >= ost->max_frames) {
+ av_free_packet(pkt);
+ return;
+ }
+ ost->frame_number++;
+ }
+ if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
+ uint8_t *sd = av_packet_get_side_data(pkt, AV_PKT_DATA_QUALITY_STATS,
+ NULL);
+ ost->quality = sd ? AV_RL32(sd) : -1;
+ }
+
+ if (bsfc)
+ av_packet_split_side_data(pkt);
+
+ while (bsfc) {
+ AVPacket new_pkt = *pkt;
+ AVDictionaryEntry *bsf_arg = av_dict_get(ost->bsf_args,
+ bsfc->filter->name,
+ NULL, 0);
+ int a = av_bitstream_filter_filter(bsfc, avctx,
+ bsf_arg ? bsf_arg->value : NULL,
+ &new_pkt.data, &new_pkt.size,
+ pkt->data, pkt->size,
+ pkt->flags & AV_PKT_FLAG_KEY);
+ if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) {
+ uint8_t *t = av_malloc(new_pkt.size + FF_INPUT_BUFFER_PADDING_SIZE); //the new should be a subset of the old so cannot overflow
+ if(t) {
+ memcpy(t, new_pkt.data, new_pkt.size);
+ memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+ new_pkt.data = t;
+ new_pkt.buf = NULL;
+ a = 1;
+ } else
+ a = AVERROR(ENOMEM);
+ }
+ if (a > 0) {
+ pkt->side_data = NULL;
+ pkt->side_data_elems = 0;
+ av_free_packet(pkt);
+ new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
+ av_buffer_default_free, NULL, 0);
+ if (!new_pkt.buf)
+ exit_program(1);
+ } else if (a < 0) {
+ new_pkt = *pkt;
+ av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
+ bsfc->filter->name, pkt->stream_index,
+ avctx->codec ? avctx->codec->name : "copy");
+ print_error("", a);
+ if (exit_on_error)
+ exit_program(1);
+ }
+ *pkt = new_pkt;
+
+ bsfc = bsfc->next;
+ }
+
+ if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS)) {
+ if (pkt->dts != AV_NOPTS_VALUE &&
+ pkt->pts != AV_NOPTS_VALUE &&
+ pkt->dts > pkt->pts) {
+ av_log(s, AV_LOG_WARNING, "Invalid DTS: %"PRId64" PTS: %"PRId64" in output stream %d:%d, replacing by guess\n",
+ pkt->dts, pkt->pts,
+ ost->file_index, ost->st->index);
+ pkt->pts =
+ pkt->dts = pkt->pts + pkt->dts + ost->last_mux_dts + 1
+ - FFMIN3(pkt->pts, pkt->dts, ost->last_mux_dts + 1)
+ - FFMAX3(pkt->pts, pkt->dts, ost->last_mux_dts + 1);
+ }
+ if(
+ (avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) &&
+ pkt->dts != AV_NOPTS_VALUE &&
+ ost->last_mux_dts != AV_NOPTS_VALUE) {
+ int64_t max = ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
+ if (pkt->dts < max) {
+ int loglevel = max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG;
+ av_log(s, loglevel, "Non-monotonous DTS in output stream "
+ "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
+ ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
+ if (exit_on_error) {
+ av_log(NULL, AV_LOG_FATAL, "aborting.\n");
+ exit_program(1);
+ }
+ av_log(s, loglevel, "changing to %"PRId64". This may result "
+ "in incorrect timestamps in the output file.\n",
+ max);
+ if(pkt->pts >= pkt->dts)
+ pkt->pts = FFMAX(pkt->pts, max);
+ pkt->dts = max;
+ }
+ }
+ }
+ ost->last_mux_dts = pkt->dts;
+
+ ost->data_size += pkt->size;
+ ost->packets_written++;
+
+ pkt->stream_index = ost->index;
+
+ if (debug_ts) {
+ av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
+ "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
+ av_get_media_type_string(ost->enc_ctx->codec_type),
+ av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
+ av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
+ pkt->size
+ );
+ }
+
+ ret = av_interleaved_write_frame(s, pkt);
+ if (ret < 0) {
+ print_error("av_interleaved_write_frame()", ret);
+ main_return_code = 1;
+ close_all_output_streams(ost, MUXER_FINISHED | ENCODER_FINISHED, ENCODER_FINISHED);
+ }
+ av_free_packet(pkt);
+}
+
+static void close_output_stream(OutputStream *ost)
+{
+ OutputFile *of = output_files[ost->file_index];
+
+ ost->finished |= ENCODER_FINISHED;
+ if (of->shortest) {
+ int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, AV_TIME_BASE_Q);
+ of->recording_time = FFMIN(of->recording_time, end);
+ }
+}
+
+static int check_recording_time(OutputStream *ost)
+{
+ OutputFile *of = output_files[ost->file_index];
+
+ if (of->recording_time != INT64_MAX &&
+ av_compare_ts(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, of->recording_time,
+ AV_TIME_BASE_Q) >= 0) {
+ close_output_stream(ost);
+ return 0;
+ }
+ return 1;
+}
+
+static void do_audio_out(AVFormatContext *s, OutputStream *ost,
+ AVFrame *frame)
+{
+ AVCodecContext *enc = ost->enc_ctx;
+ AVPacket pkt;
+ int got_packet = 0;
+
+ av_init_packet(&pkt);
+ pkt.data = NULL;
+ pkt.size = 0;
+
+ if (!check_recording_time(ost))
+ return;
+
+ if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
+ frame->pts = ost->sync_opts;
+ ost->sync_opts = frame->pts + frame->nb_samples;
+ ost->samples_encoded += frame->nb_samples;
+ ost->frames_encoded++;
+
+ av_assert0(pkt.size || !pkt.data);
+ update_benchmark(NULL);
+ if (debug_ts) {
+ av_log(NULL, AV_LOG_INFO, "encoder <- type:audio "
+ "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
+ av_ts2str(frame->pts), av_ts2timestr(frame->pts, &enc->time_base),
+ enc->time_base.num, enc->time_base.den);
+ }
+
+ if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
+ av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
+ exit_program(1);
+ }
+ update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
+
+ if (got_packet) {
+ av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
+
+ if (debug_ts) {
+ av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
+ "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
+ av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
+ av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
+ }
+
+ write_frame(s, &pkt, ost);
+ }
+}
+
+static void do_subtitle_out(AVFormatContext *s,
+ OutputStream *ost,
+ InputStream *ist,
+ AVSubtitle *sub)
+{
+ int subtitle_out_max_size = 1024 * 1024;
+ int subtitle_out_size, nb, i;
+ AVCodecContext *enc;
+ AVPacket pkt;
+ int64_t pts;
+
+ if (sub->pts == AV_NOPTS_VALUE) {
+ av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
+ if (exit_on_error)
+ exit_program(1);
+ return;
+ }
+
+ enc = ost->enc_ctx;
+
+ if (!subtitle_out) {
+ subtitle_out = av_malloc(subtitle_out_max_size);
+ if (!subtitle_out) {
+ av_log(NULL, AV_LOG_FATAL, "Failed to allocate subtitle_out\n");
+ exit_program(1);
+ }
+ }
+
+ /* Note: DVB subtitle need one packet to draw them and one other
+ packet to clear them */
+ /* XXX: signal it in the codec context ? */
+ if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
+ nb = 2;
+ else
+ nb = 1;
+
+ /* shift timestamp to honor -ss and make check_recording_time() work with -t */
+ pts = sub->pts;
+ if (output_files[ost->file_index]->start_time != AV_NOPTS_VALUE)
+ pts -= output_files[ost->file_index]->start_time;
+ for (i = 0; i < nb; i++) {
+ unsigned save_num_rects = sub->num_rects;
+
+ ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
+ if (!check_recording_time(ost))
+ return;
+
+ sub->pts = pts;
+ // start_display_time is required to be 0
+ sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
+ sub->end_display_time -= sub->start_display_time;
+ sub->start_display_time = 0;
+ if (i == 1)
+ sub->num_rects = 0;
+
+ ost->frames_encoded++;
+
+ subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
+ subtitle_out_max_size, sub);
+ if (i == 1)
+ sub->num_rects = save_num_rects;
+ if (subtitle_out_size < 0) {
+ av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
+ exit_program(1);
+ }
+
+ av_init_packet(&pkt);
+ pkt.data = subtitle_out;
+ pkt.size = subtitle_out_size;
+ pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
+ pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
+ if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
+ /* XXX: the pts correction is handled here. Maybe handling
+ it in the codec would be better */
+ if (i == 0)
+ pkt.pts += 90 * sub->start_display_time;
+ else
+ pkt.pts += 90 * sub->end_display_time;
+ }
+ pkt.dts = pkt.pts;
+ write_frame(s, &pkt, ost);
+ }
+}
+
+static void do_video_out(AVFormatContext *s,
+ OutputStream *ost,
+ AVFrame *next_picture,
+ double sync_ipts)
+{
+ int ret, format_video_sync;
+ AVPacket pkt;
+ AVCodecContext *enc = ost->enc_ctx;
+ AVCodecContext *mux_enc = ost->st->codec;
+ int nb_frames, nb0_frames, i;
+ double delta, delta0;
+ double duration = 0;
+ int frame_size = 0;
+ InputStream *ist = NULL;
+ AVFilterContext *filter = ost->filter->filter;
+
+ if (ost->source_index >= 0)
+ ist = input_streams[ost->source_index];
+
+ if (filter->inputs[0]->frame_rate.num > 0 &&
+ filter->inputs[0]->frame_rate.den > 0)
+ duration = 1/(av_q2d(filter->inputs[0]->frame_rate) * av_q2d(enc->time_base));
+
+ if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
+ duration = FFMIN(duration, 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base)));
+
+ if (!ost->filters_script &&
+ !ost->filters &&
+ next_picture &&
+ ist &&
+ lrintf(av_frame_get_pkt_duration(next_picture) * av_q2d(ist->st->time_base) / av_q2d(enc->time_base)) > 0) {
+ duration = lrintf(av_frame_get_pkt_duration(next_picture) * av_q2d(ist->st->time_base) / av_q2d(enc->time_base));
+ }
+
+ if (!next_picture) {
+ //end, flushing
+ nb0_frames = nb_frames = mid_pred(ost->last_nb0_frames[0],
+ ost->last_nb0_frames[1],
+ ost->last_nb0_frames[2]);
+ } else {
+ delta0 = sync_ipts - ost->sync_opts;
+ delta = delta0 + duration;
+
+ /* by default, we output a single frame */
+ nb0_frames = 0;
+ nb_frames = 1;
+
+ format_video_sync = video_sync_method;
+ if (format_video_sync == VSYNC_AUTO) {
+ if(!strcmp(s->oformat->name, "avi")) {
+ format_video_sync = VSYNC_VFR;
+ } else
+ format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : VSYNC_CFR;
+ if ( ist
+ && format_video_sync == VSYNC_CFR
+ && input_files[ist->file_index]->ctx->nb_streams == 1
+ && input_files[ist->file_index]->input_ts_offset == 0) {
+ format_video_sync = VSYNC_VSCFR;
+ }
+ if (format_video_sync == VSYNC_CFR && copy_ts) {
+ format_video_sync = VSYNC_VSCFR;
+ }
+ }
+
+ if (delta0 < 0 &&
+ delta > 0 &&
+ format_video_sync != VSYNC_PASSTHROUGH &&
+ format_video_sync != VSYNC_DROP) {
+ double cor = FFMIN(-delta0, duration);
+ if (delta0 < -0.6) {
+ av_log(NULL, AV_LOG_WARNING, "Past duration %f too large\n", -delta0);
+ } else
+ av_log(NULL, AV_LOG_DEBUG, "Cliping frame in rate conversion by %f\n", -delta0);
+ sync_ipts += cor;
+ duration -= cor;
+ delta0 += cor;
+ }
+
+ switch (format_video_sync) {
+ case VSYNC_VSCFR:
+ if (ost->frame_number == 0 && delta - duration >= 0.5) {
+ av_log(NULL, AV_LOG_DEBUG, "Not duplicating %d initial frames\n", (int)lrintf(delta - duration));
+ delta = duration;
+ delta0 = 0;
+ ost->sync_opts = lrint(sync_ipts);
+ }
+ case VSYNC_CFR:
+ // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
+ if (frame_drop_threshold && delta < frame_drop_threshold && ost->frame_number) {
+ nb_frames = 0;
+ } else if (delta < -1.1)
+ nb_frames = 0;
+ else if (delta > 1.1) {
+ nb_frames = lrintf(delta);
+ if (delta0 > 1.1)
+ nb0_frames = lrintf(delta0 - 0.6);
+ }
+ break;
+ case VSYNC_VFR:
+ if (delta <= -0.6)
+ nb_frames = 0;
+ else if (delta > 0.6)
+ ost->sync_opts = lrint(sync_ipts);
+ break;
+ case VSYNC_DROP:
+ case VSYNC_PASSTHROUGH:
+ ost->sync_opts = lrint(sync_ipts);
+ break;
+ default:
+ av_assert0(0);
+ }
+ }
+
+ nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
+ nb0_frames = FFMIN(nb0_frames, nb_frames);
+
+ memmove(ost->last_nb0_frames + 1,
+ ost->last_nb0_frames,
+ sizeof(ost->last_nb0_frames[0]) * (FF_ARRAY_ELEMS(ost->last_nb0_frames) - 1));
+ ost->last_nb0_frames[0] = nb0_frames;
+
+ if (nb0_frames == 0 && ost->last_droped) {
+ nb_frames_drop++;
+ av_log(NULL, AV_LOG_VERBOSE,
+ "*** dropping frame %d from stream %d at ts %"PRId64"\n",
+ ost->frame_number, ost->st->index, ost->last_frame->pts);
+ }
+ if (nb_frames > (nb0_frames && ost->last_droped) + (nb_frames > nb0_frames)) {
+ if (nb_frames > dts_error_threshold * 30) {
+ av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
+ nb_frames_drop++;
+ return;
+ }
+ nb_frames_dup += nb_frames - (nb0_frames && ost->last_droped) - (nb_frames > nb0_frames);
+ av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
+ }
+ ost->last_droped = nb_frames == nb0_frames && next_picture;
+
+ /* duplicates frame if needed */
+ for (i = 0; i < nb_frames; i++) {
+ AVFrame *in_picture;
+ av_init_packet(&pkt);
+ pkt.data = NULL;
+ pkt.size = 0;
+
+ if (i < nb0_frames && ost->last_frame) {
+ in_picture = ost->last_frame;
+ } else
+ in_picture = next_picture;
+
+ if (!in_picture)
+ return;
+
+ in_picture->pts = ost->sync_opts;
+
+#if 1
+ if (!check_recording_time(ost))
+#else
+ if (ost->frame_number >= ost->max_frames)
+#endif
+ return;
+
+ if (s->oformat->flags & AVFMT_RAWPICTURE &&
+ enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
+ /* raw pictures are written as AVPicture structure to
+ avoid any copies. We support temporarily the older
+ method. */
+ if (in_picture->interlaced_frame)
+ mux_enc->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
+ else
+ mux_enc->field_order = AV_FIELD_PROGRESSIVE;
+ pkt.data = (uint8_t *)in_picture;
+ pkt.size = sizeof(AVPicture);
+ pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
+ pkt.flags |= AV_PKT_FLAG_KEY;
+
+ write_frame(s, &pkt, ost);
+ } else {
+ int got_packet, forced_keyframe = 0;
+ double pts_time;
+
+ if (enc->flags & (AV_CODEC_FLAG_INTERLACED_DCT | AV_CODEC_FLAG_INTERLACED_ME) &&
+ ost->top_field_first >= 0)
+ in_picture->top_field_first = !!ost->top_field_first;
+
+ if (in_picture->interlaced_frame) {
+ if (enc->codec->id == AV_CODEC_ID_MJPEG)
+ mux_enc->field_order = in_picture->top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
+ else
+ mux_enc->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
+ } else
+ mux_enc->field_order = AV_FIELD_PROGRESSIVE;
+
+ in_picture->quality = enc->global_quality;
+ in_picture->pict_type = 0;
+
+ pts_time = in_picture->pts != AV_NOPTS_VALUE ?
+ in_picture->pts * av_q2d(enc->time_base) : NAN;
+ if (ost->forced_kf_index < ost->forced_kf_count &&
+ in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
+ ost->forced_kf_index++;
+ forced_keyframe = 1;
+ } else if (ost->forced_keyframes_pexpr) {
+ double res;
+ ost->forced_keyframes_expr_const_values[FKF_T] = pts_time;
+ res = av_expr_eval(ost->forced_keyframes_pexpr,
+ ost->forced_keyframes_expr_const_values, NULL);
+ av_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n",
+ ost->forced_keyframes_expr_const_values[FKF_N],
+ ost->forced_keyframes_expr_const_values[FKF_N_FORCED],
+ ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N],
+ ost->forced_keyframes_expr_const_values[FKF_T],
+ ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T],
+ res);
+ if (res) {
+ forced_keyframe = 1;
+ ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] =
+ ost->forced_keyframes_expr_const_values[FKF_N];
+ ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] =
+ ost->forced_keyframes_expr_const_values[FKF_T];
+ ost->forced_keyframes_expr_const_values[FKF_N_FORCED] += 1;
+ }
+
+ ost->forced_keyframes_expr_const_values[FKF_N] += 1;
+ } else if ( ost->forced_keyframes
+ && !strncmp(ost->forced_keyframes, "source", 6)
+ && in_picture->key_frame==1) {
+ forced_keyframe = 1;
+ }
+
+ if (forced_keyframe) {
+ in_picture->pict_type = AV_PICTURE_TYPE_I;
+ av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time);
+ }
+
+ update_benchmark(NULL);
+ if (debug_ts) {
+ av_log(NULL, AV_LOG_INFO, "encoder <- type:video "
+ "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
+ av_ts2str(in_picture->pts), av_ts2timestr(in_picture->pts, &enc->time_base),
+ enc->time_base.num, enc->time_base.den);
+ }
+
+ ost->frames_encoded++;
+
+ ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
+ update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
+ if (ret < 0) {
+ av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
+ exit_program(1);
+ }
+
+ if (got_packet) {
+ if (debug_ts) {
+ av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
+ "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
+ av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &enc->time_base),
+ av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &enc->time_base));
+ }
+
- if (!(enc->codec->capabilities & CODEC_CAP_PARAM_CHANGE) &&
++ if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & AV_CODEC_CAP_DELAY))
+ pkt.pts = ost->sync_opts;
+
+ av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
+
+ if (debug_ts) {
+ av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
+ "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
+ av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
+ av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
+ }
+
+ frame_size = pkt.size;
+ write_frame(s, &pkt, ost);
+
+ /* if two pass, output log */
+ if (ost->logfile && enc->stats_out) {
+ fprintf(ost->logfile, "%s", enc->stats_out);
+ }
+ }
+ }
+ ost->sync_opts++;
+ /*
+ * For video, number of frames in == number of packets out.
+ * But there may be reordering, so we can't throw away frames on encoder
+ * flush, we need to limit them here, before they go into encoder.
+ */
+ ost->frame_number++;
+
+ if (vstats_filename && frame_size)
+ do_video_stats(ost, frame_size);
+ }
+
+ if (!ost->last_frame)
+ ost->last_frame = av_frame_alloc();
+ av_frame_unref(ost->last_frame);
+ if (next_picture && ost->last_frame)
+ av_frame_ref(ost->last_frame, next_picture);
+ else
+ av_frame_free(&ost->last_frame);
+}
+
+static double psnr(double d)
+{
+ return -10.0 * log(d) / log(10.0);
+}
+
+static void do_video_stats(OutputStream *ost, int frame_size)
+{
+ AVCodecContext *enc;
+ int frame_number;
+ double ti1, bitrate, avg_bitrate;
+
+ /* this is executed just the first time do_video_stats is called */
+ if (!vstats_file) {
+ vstats_file = fopen(vstats_filename, "w");
+ if (!vstats_file) {
+ perror("fopen");
+ exit_program(1);
+ }
+ }
+
+ enc = ost->enc_ctx;
+ if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
+ frame_number = ost->st->nb_frames;
+ fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number,
+ ost->quality / (float)FF_QP2LAMBDA);
+
+ if (enc->coded_frame && (enc->flags & AV_CODEC_FLAG_PSNR))
+ fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
+
+ fprintf(vstats_file,"f_size= %6d ", frame_size);
+ /* compute pts value */
+ ti1 = av_stream_get_end_pts(ost->st) * av_q2d(ost->st->time_base);
+ if (ti1 < 0.01)
+ ti1 = 0.01;
+
+ bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
+ avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
+ fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
+ (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
+ fprintf(vstats_file, "type= %c\n", enc->coded_frame ? av_get_picture_type_char(enc->coded_frame->pict_type) : 'I');
+ }
+}
+
+static void finish_output_stream(OutputStream *ost)
+{
+ OutputFile *of = output_files[ost->file_index];
+ int i;
+
+ ost->finished = ENCODER_FINISHED | MUXER_FINISHED;
+
+ if (of->shortest) {
+ for (i = 0; i < of->ctx->nb_streams; i++)
+ output_streams[of->ost_index + i]->finished = ENCODER_FINISHED | MUXER_FINISHED;
+ }
+}
+
+/**
+ * Get and encode new output from any of the filtergraphs, without causing
+ * activity.
+ *
+ * @return 0 for success, <0 for severe errors
+ */
+static int reap_filters(int flush)
+{
+ AVFrame *filtered_frame = NULL;
+ int i;
+
+ /* Reap all buffers present in the buffer sinks */
+ for (i = 0; i < nb_output_streams; i++) {
+ OutputStream *ost = output_streams[i];
+ OutputFile *of = output_files[ost->file_index];
+ AVFilterContext *filter;
+ AVCodecContext *enc = ost->enc_ctx;
+ int ret = 0;
+
+ if (!ost->filter)
+ continue;
+ filter = ost->filter->filter;
+
+ if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
+ return AVERROR(ENOMEM);
+ }
+ filtered_frame = ost->filtered_frame;
+
+ while (1) {
+ double float_pts = AV_NOPTS_VALUE; // this is identical to filtered_frame.pts but with higher precision
+ ret = av_buffersink_get_frame_flags(filter, filtered_frame,
+ AV_BUFFERSINK_FLAG_NO_REQUEST);
+ if (ret < 0) {
+ if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
+ av_log(NULL, AV_LOG_WARNING,
+ "Error in av_buffersink_get_frame_flags(): %s\n", av_err2str(ret));
+ } else if (flush && ret == AVERROR_EOF) {
+ if (filter->inputs[0]->type == AVMEDIA_TYPE_VIDEO)
+ do_video_out(of->ctx, ost, NULL, AV_NOPTS_VALUE);
+ }
+ break;
+ }
+ if (ost->finished) {
+ av_frame_unref(filtered_frame);
+ continue;
+ }
+ if (filtered_frame->pts != AV_NOPTS_VALUE) {
+ int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
+ AVRational tb = enc->time_base;
+ int extra_bits = av_clip(29 - av_log2(tb.den), 0, 16);
+
+ tb.den <<= extra_bits;
+ float_pts =
+ av_rescale_q(filtered_frame->pts, filter->inputs[0]->time_base, tb) -
+ av_rescale_q(start_time, AV_TIME_BASE_Q, tb);
+ float_pts /= 1 << extra_bits;
+ // avoid exact midoints to reduce the chance of rounding differences, this can be removed in case the fps code is changed to work with integers
+ float_pts += FFSIGN(float_pts) * 1.0 / (1<<17);
+
+ filtered_frame->pts =
+ av_rescale_q(filtered_frame->pts, filter->inputs[0]->time_base, enc->time_base) -
+ av_rescale_q(start_time, AV_TIME_BASE_Q, enc->time_base);
+ }
+ //if (ost->source_index >= 0)
+ // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
+
+ switch (filter->inputs[0]->type) {
+ case AVMEDIA_TYPE_VIDEO:
+ if (!ost->frame_aspect_ratio.num)
+ enc->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
+
+ if (debug_ts) {
+ av_log(NULL, AV_LOG_INFO, "filter -> pts:%s pts_time:%s exact:%f time_base:%d/%d\n",
+ av_ts2str(filtered_frame->pts), av_ts2timestr(filtered_frame->pts, &enc->time_base),
+ float_pts,
+ enc->time_base.num, enc->time_base.den);
+ }
+
+ do_video_out(of->ctx, ost, filtered_frame, float_pts);
+ break;
+ case AVMEDIA_TYPE_AUDIO:
- !(ist->dec->capabilities & CODEC_CAP_SUBFRAMES)) {
++ if (!(enc->codec->capabilities & AV_CODEC_CAP_PARAM_CHANGE) &&
+ enc->channels != av_frame_get_channels(filtered_frame)) {
+ av_log(NULL, AV_LOG_ERROR,
+ "Audio filter graph output is not normalized and encoder does not support parameter changes\n");
+ break;
+ }
+ do_audio_out(of->ctx, ost, filtered_frame);
+ break;
+ default:
+ // TODO support subtitle filters
+ av_assert0(0);
+ }
+
+ av_frame_unref(filtered_frame);
+ }
+ }
+
+ return 0;
+}
+
+static void print_final_stats(int64_t total_size)
+{
+ uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
+ uint64_t subtitle_size = 0;
+ uint64_t data_size = 0;
+ float percent = -1.0;
+ int i, j;
+ int pass1_used = 1;
+
+ for (i = 0; i < nb_output_streams; i++) {
+ OutputStream *ost = output_streams[i];
+ switch (ost->enc_ctx->codec_type) {
+ case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
+ case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
+ case AVMEDIA_TYPE_SUBTITLE: subtitle_size += ost->data_size; break;
+ default: other_size += ost->data_size; break;
+ }
+ extra_size += ost->enc_ctx->extradata_size;
+ data_size += ost->data_size;
+ if ( (ost->enc_ctx->flags & (AV_CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))
+ != AV_CODEC_FLAG_PASS1)
+ pass1_used = 0;
+ }
+
+ if (data_size && total_size>0 && total_size >= data_size)
+ percent = 100.0 * (total_size - data_size) / data_size;
+
+ av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ",
+ video_size / 1024.0,
+ audio_size / 1024.0,
+ subtitle_size / 1024.0,
+ other_size / 1024.0,
+ extra_size / 1024.0);
+ if (percent >= 0.0)
+ av_log(NULL, AV_LOG_INFO, "%f%%", percent);
+ else
+ av_log(NULL, AV_LOG_INFO, "unknown");
+ av_log(NULL, AV_LOG_INFO, "\n");
+
+ /* print verbose per-stream stats */
+ for (i = 0; i < nb_input_files; i++) {
+ InputFile *f = input_files[i];
+ uint64_t total_packets = 0, total_size = 0;
+
+ av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
+ i, f->ctx->filename);
+
+ for (j = 0; j < f->nb_streams; j++) {
+ InputStream *ist = input_streams[f->ist_index + j];
+ enum AVMediaType type = ist->dec_ctx->codec_type;
+
+ total_size += ist->data_size;
+ total_packets += ist->nb_packets;
+
+ av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
+ i, j, media_type_string(type));
+ av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
+ ist->nb_packets, ist->data_size);
+
+ if (ist->decoding_needed) {
+ av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
+ ist->frames_decoded);
+ if (type == AVMEDIA_TYPE_AUDIO)
+ av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
+ av_log(NULL, AV_LOG_VERBOSE, "; ");
+ }
+
+ av_log(NULL, AV_LOG_VERBOSE, "\n");
+ }
+
+ av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
+ total_packets, total_size);
+ }
+
+ for (i = 0; i < nb_output_files; i++) {
+ OutputFile *of = output_files[i];
+ uint64_t total_packets = 0, total_size = 0;
+
+ av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
+ i, of->ctx->filename);
+
+ for (j = 0; j < of->ctx->nb_streams; j++) {
+ OutputStream *ost = output_streams[of->ost_index + j];
+ enum AVMediaType type = ost->enc_ctx->codec_type;
+
+ total_size += ost->data_size;
+ total_packets += ost->packets_written;
+
+ av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
+ i, j, media_type_string(type));
+ if (ost->encoding_needed) {
+ av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
+ ost->frames_encoded);
+ if (type == AVMEDIA_TYPE_AUDIO)
+ av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
+ av_log(NULL, AV_LOG_VERBOSE, "; ");
+ }
+
+ av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
+ ost->packets_written, ost->data_size);
+
+ av_log(NULL, AV_LOG_VERBOSE, "\n");
+ }
+
+ av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
+ total_packets, total_size);
+ }
+ if(video_size + data_size + audio_size + subtitle_size + extra_size == 0){
+ av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded ");
+ if (pass1_used) {
+ av_log(NULL, AV_LOG_WARNING, "\n");
+ } else {
+ av_log(NULL, AV_LOG_WARNING, "(check -ss / -t / -frames parameters if used)\n");
+ }
+ }
+}
+
+static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
+{
+ char buf[1024];
+ AVBPrint buf_script;
+ OutputStream *ost;
+ AVFormatContext *oc;
+ int64_t total_size;
+ AVCodecContext *enc;
+ int frame_number, vid, i;
+ double bitrate;
+ int64_t pts = INT64_MIN;
+ static int64_t last_time = -1;
+ static int qp_histogram[52];
+ int hours, mins, secs, us;
+
+ if (!print_stats && !is_last_report && !progress_avio)
+ return;
+
+ if (!is_last_report) {
+ if (last_time == -1) {
+ last_time = cur_time;
+ return;
+ }
+ if ((cur_time - last_time) < 500000)
+ return;
+ last_time = cur_time;
+ }
+
+
+ oc = output_files[0]->ctx;
+
+ total_size = avio_size(oc->pb);
+ if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
+ total_size = avio_tell(oc->pb);
+
+ buf[0] = '\0';
+ vid = 0;
+ av_bprint_init(&buf_script, 0, 1);
+ for (i = 0; i < nb_output_streams; i++) {
+ float q = -1;
+ ost = output_streams[i];
+ enc = ost->enc_ctx;
+ if (!ost->stream_copy)
+ q = ost->quality / (float) FF_QP2LAMBDA;
+
+ if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
+ snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
+ av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
+ ost->file_index, ost->index, q);
+ }
+ if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
+ float fps, t = (cur_time-timer_start) / 1000000.0;
+
+ frame_number = ost->frame_number;
+ fps = t > 1 ? frame_number / t : 0;
+ snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
+ frame_number, fps < 9.95, fps, q);
+ av_bprintf(&buf_script, "frame=%d\n", frame_number);
+ av_bprintf(&buf_script, "fps=%.1f\n", fps);
+ av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
+ ost->file_index, ost->index, q);
+ if (is_last_report)
+ snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
+ if (qp_hist) {
+ int j;
+ int qp = lrintf(q);
+ if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
+ qp_histogram[qp]++;
+ for (j = 0; j < 32; j++)
+ snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
+ }
+
+ if ((enc->flags & AV_CODEC_FLAG_PSNR) && (enc->coded_frame || is_last_report)) {
+ int j;
+ double error, error_sum = 0;
+ double scale, scale_sum = 0;
+ double p;
+ char type[3] = { 'Y','U','V' };
+ snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
+ for (j = 0; j < 3; j++) {
+ if (is_last_report) {
+ error = enc->error[j];
+ scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
+ } else {
+ error = enc->coded_frame->error[j];
+ scale = enc->width * enc->height * 255.0 * 255.0;
+ }
+ if (j)
+ scale /= 4;
+ error_sum += error;
+ scale_sum += scale;
+ p = psnr(error / scale);
+ snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
+ av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
+ ost->file_index, ost->index, type[j] | 32, p);
+ }
+ p = psnr(error_sum / scale_sum);
+ snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
+ av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
+ ost->file_index, ost->index, p);
+ }
+ vid = 1;
+ }
+ /* compute min output value */
+ if (av_stream_get_end_pts(ost->st) != AV_NOPTS_VALUE)
+ pts = FFMAX(pts, av_rescale_q(av_stream_get_end_pts(ost->st),
+ ost->st->time_base, AV_TIME_BASE_Q));
+ if (is_last_report)
+ nb_frames_drop += ost->last_droped;
+ }
+
+ secs = FFABS(pts) / AV_TIME_BASE;
+ us = FFABS(pts) % AV_TIME_BASE;
+ mins = secs / 60;
+ secs %= 60;
+ hours = mins / 60;
+ mins %= 60;
+
+ bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
+
+ if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
+ "size=N/A time=");
+ else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
+ "size=%8.0fkB time=", total_size / 1024.0);
+ if (pts < 0)
+ snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "-");
+ snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
+ "%02d:%02d:%02d.%02d ", hours, mins, secs,
+ (100 * us) / AV_TIME_BASE);
+
+ if (bitrate < 0) {
+ snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),"bitrate=N/A");
+ av_bprintf(&buf_script, "bitrate=N/A\n");
+ }else{
+ snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),"bitrate=%6.1fkbits/s", bitrate);
+ av_bprintf(&buf_script, "bitrate=%6.1fkbits/s\n", bitrate);
+ }
+
+ if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
+ else av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
+ av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
+ av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
+ hours, mins, secs, us);
+
+ if (nb_frames_dup || nb_frames_drop)
+ snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
+ nb_frames_dup, nb_frames_drop);
+ av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
+ av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
+
+ if (print_stats || is_last_report) {
+ const char end = is_last_report ? '\n' : '\r';
+ if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) {
+ fprintf(stderr, "%s %c", buf, end);
+ } else
+ av_log(NULL, AV_LOG_INFO, "%s %c", buf, end);
+
+ fflush(stderr);
+ }
+
+ if (progress_avio) {
+ av_bprintf(&buf_script, "progress=%s\n",
+ is_last_report ? "end" : "continue");
+ avio_write(progress_avio, buf_script.str,
+ FFMIN(buf_script.len, buf_script.size - 1));
+ avio_flush(progress_avio);
+ av_bprint_finalize(&buf_script, NULL);
+ if (is_last_report) {
+ avio_closep(&progress_avio);
+ }
+ }
+
+ if (is_last_report)
+ print_final_stats(total_size);
+}
+
+static void flush_encoders(void)
+{
+ int i, ret;
+
+ for (i = 0; i < nb_output_streams; i++) {
+ OutputStream *ost = output_streams[i];
+ AVCodecContext *enc = ost->enc_ctx;
+ AVFormatContext *os = output_files[ost->file_index]->ctx;
+ int stop_encoding = 0;
+
+ if (!ost->encoding_needed)
+ continue;
+
+ if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
+ continue;
+ if (enc->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
+ continue;
+
+ for (;;) {
+ int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
+ const char *desc;
+
+ switch (enc->codec_type) {
+ case AVMEDIA_TYPE_AUDIO:
+ encode = avcodec_encode_audio2;
+ desc = "Audio";
+ break;
+ case AVMEDIA_TYPE_VIDEO:
+ encode = avcodec_encode_video2;
+ desc = "Video";
+ break;
+ default:
+ stop_encoding = 1;
+ }
+
+ if (encode) {
+ AVPacket pkt;
+ int pkt_size;
+ int got_packet;
+ av_init_packet(&pkt);
+ pkt.data = NULL;
+ pkt.size = 0;
+
+ update_benchmark(NULL);
+ ret = encode(enc, &pkt, NULL, &got_packet);
+ update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
+ if (ret < 0) {
+ av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
+ exit_program(1);
+ }
+ if (ost->logfile && enc->stats_out) {
+ fprintf(ost->logfile, "%s", enc->stats_out);
+ }
+ if (!got_packet) {
+ stop_encoding = 1;
+ break;
+ }
+ if (ost->finished & MUXER_FINISHED) {
+ av_free_packet(&pkt);
+ continue;
+ }
+ av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
+ pkt_size = pkt.size;
+ write_frame(os, &pkt, ost);
+ if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO && vstats_filename) {
+ do_video_stats(ost, pkt_size);
+ }
+ }
+
+ if (stop_encoding)
+ break;
+ }
+ }
+}
+
+/*
+ * Check whether a packet from ist should be written into ost at this time
+ */
+static int check_output_constraints(InputStream *ist, OutputStream *ost)
+{
+ OutputFile *of = output_files[ost->file_index];
+ int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
+
+ if (ost->source_index != ist_index)
+ return 0;
+
+ if (ost->finished)
+ return 0;
+
+ if (of->start_time != AV_NOPTS_VALUE && ist->pts < of->start_time)
+ return 0;
+
+ return 1;
+}
+
+static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
+{
+ OutputFile *of = output_files[ost->file_index];
+ InputFile *f = input_files [ist->file_index];
+ int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
+ int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
+ int64_t ist_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ist->st->time_base);
+ AVPicture pict;
+ AVPacket opkt;
+
+ av_init_packet(&opkt);
+
+ if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
+ !ost->copy_initial_nonkeyframes)
+ return;
+
+ if (pkt->pts == AV_NOPTS_VALUE) {
+ if (!ost->frame_number && ist->pts < start_time &&
+ !ost->copy_prior_start)
+ return;
+ } else {
+ if (!ost->frame_number && pkt->pts < ist_tb_start_time &&
+ !ost->copy_prior_start)
+ return;
+ }
+
+ if (of->recording_time != INT64_MAX &&
+ ist->pts >= of->recording_time + start_time) {
+ close_output_stream(ost);
+ return;
+ }
+
+ if (f->recording_time != INT64_MAX) {
+ start_time = f->ctx->start_time;
+ if (f->start_time != AV_NOPTS_VALUE)
+ start_time += f->start_time;
+ if (ist->pts >= f->recording_time + start_time) {
+ close_output_stream(ost);
+ return;
+ }
+ }
+
+ /* force the input stream PTS */
+ if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
+ ost->sync_opts++;
+
+ if (pkt->pts != AV_NOPTS_VALUE)
+ opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
+ else
+ opkt.pts = AV_NOPTS_VALUE;
+
+ if (pkt->dts == AV_NOPTS_VALUE)
+ opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
+ else
+ opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
+ opkt.dts -= ost_tb_start_time;
+
+ if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
+ int duration = av_get_audio_frame_duration(ist->dec_ctx, pkt->size);
+ if(!duration)
+ duration = ist->dec_ctx->frame_size;
+ opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
+ (AVRational){1, ist->dec_ctx->sample_rate}, duration, &ist->filter_in_rescale_delta_last,
+ ost->st->time_base) - ost_tb_start_time;
+ }
+
+ opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
+ opkt.flags = pkt->flags;
+
+ // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
+ if ( ost->enc_ctx->codec_id != AV_CODEC_ID_H264
+ && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG1VIDEO
+ && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG2VIDEO
+ && ost->enc_ctx->codec_id != AV_CODEC_ID_VC1
+ ) {
+ if (av_parser_change(ost->parser, ost->st->codec,
+ &opkt.data, &opkt.size,
+ pkt->data, pkt->size,
+ pkt->flags & AV_PKT_FLAG_KEY)) {
+ opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
+ if (!opkt.buf)
+ exit_program(1);
+ }
+ } else {
+ opkt.data = pkt->data;
+ opkt.size = pkt->size;
+ }
+ av_copy_packet_side_data(&opkt, pkt);
+
+ if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
+ /* store AVPicture in AVPacket, as expected by the output format */
+ avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
+ opkt.data = (uint8_t *)&pict;
+ opkt.size = sizeof(AVPicture);
+ opkt.flags |= AV_PKT_FLAG_KEY;
+ }
+
+ write_frame(of->ctx, &opkt, ost);
+}
+
+int guess_input_channel_layout(InputStream *ist)
+{
+ AVCodecContext *dec = ist->dec_ctx;
+
+ if (!dec->channel_layout) {
+ char layout_name[256];
+
+ if (dec->channels > ist->guess_layout_max)
+ return 0;
+ dec->channel_layout = av_get_default_channel_layout(dec->channels);
+ if (!dec->channel_layout)
+ return 0;
+ av_get_channel_layout_string(layout_name, sizeof(layout_name),
+ dec->channels, dec->channel_layout);
+ av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
+ "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
+ }
+ return 1;
+}
+
+static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
+{
+ AVFrame *decoded_frame, *f;
+ AVCodecContext *avctx = ist->dec_ctx;
+ int i, ret, err = 0, resample_changed;
+ AVRational decoded_frame_tb;
+
+ if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
+ return AVERROR(ENOMEM);
+ if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
+ return AVERROR(ENOMEM);
+ decoded_frame = ist->decoded_frame;
+
+ update_benchmark(NULL);
+ ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
+ update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
+
+ if (ret >= 0 && avctx->sample_rate <= 0) {
+ av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
+ ret = AVERROR_INVALIDDATA;
+ }
+
+ if (*got_output || ret<0)
+ decode_error_stat[ret<0] ++;
+
+ if (ret < 0 && exit_on_error)
+ exit_program(1);
+
+ if (!*got_output || ret < 0)
+ return ret;
+
+ ist->samples_decoded += decoded_frame->nb_samples;
+ ist->frames_decoded++;
+
+#if 1
+ /* increment next_dts to use for the case where the input stream does not
+ have timestamps or there are multiple frames in the packet */
+ ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
+ avctx->sample_rate;
+ ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
+ avctx->sample_rate;
+#endif
+
+ resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
+ ist->resample_channels != avctx->channels ||
+ ist->resample_channel_layout != decoded_frame->channel_layout ||
+ ist->resample_sample_rate != decoded_frame->sample_rate;
+ if (resample_changed) {
+ char layout1[64], layout2[64];
+
+ if (!guess_input_channel_layout(ist)) {
+ av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
+ "layout for Input Stream #%d.%d\n", ist->file_index,
+ ist->st->index);
+ exit_program(1);
+ }
+ decoded_frame->channel_layout = avctx->channel_layout;
+
+ av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
+ ist->resample_channel_layout);
+ av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
+ decoded_frame->channel_layout);
+
+ av_log(NULL, AV_LOG_INFO,
+ "Input stream #%d:%d frame changed from rate:%d fmt:%s ch:%d chl:%s to rate:%d fmt:%s ch:%d chl:%s\n",
+ ist->file_index, ist->st->index,
+ ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
+ ist->resample_channels, layout1,
+ decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
+ avctx->channels, layout2);
+
+ ist->resample_sample_fmt = decoded_frame->format;
+ ist->resample_sample_rate = decoded_frame->sample_rate;
+ ist->resample_channel_layout = decoded_frame->channel_layout;
+ ist->resample_channels = avctx->channels;
+
+ for (i = 0; i < nb_filtergraphs; i++)
+ if (ist_in_filtergraph(filtergraphs[i], ist)) {
+ FilterGraph *fg = filtergraphs[i];
+ if (configure_filtergraph(fg) < 0) {
+ av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
+ exit_program(1);
+ }
+ }
+ }
+
+ /* if the decoder provides a pts, use it instead of the last packet pts.
+ the decoder could be delaying output by a packet or more. */
+ if (decoded_frame->pts != AV_NOPTS_VALUE) {
+ ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q);
+ decoded_frame_tb = avctx->time_base;
+ } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) {
+ decoded_frame->pts = decoded_frame->pkt_pts;
+ decoded_frame_tb = ist->st->time_base;
+ } else if (pkt->pts != AV_NOPTS_VALUE) {
+ decoded_frame->pts = pkt->pts;
+ decoded_frame_tb = ist->st->time_base;
+ }else {
+ decoded_frame->pts = ist->dts;
+ decoded_frame_tb = AV_TIME_BASE_Q;
+ }
+ pkt->pts = AV_NOPTS_VALUE;
+ if (decoded_frame->pts != AV_NOPTS_VALUE)
+ decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
+ (AVRational){1, avctx->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
+ (AVRational){1, avctx->sample_rate});
+ for (i = 0; i < ist->nb_filters; i++) {
+ if (i < ist->nb_filters - 1) {
+ f = ist->filter_frame;
+ err = av_frame_ref(f, decoded_frame);
+ if (err < 0)
+ break;
+ } else
+ f = decoded_frame;
+ err = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f,
+ AV_BUFFERSRC_FLAG_PUSH);
+ if (err == AVERROR_EOF)
+ err = 0; /* ignore */
+ if (err < 0)
+ break;
+ }
+ decoded_frame->pts = AV_NOPTS_VALUE;
+
+ av_frame_unref(ist->filter_frame);
+ av_frame_unref(decoded_frame);
+ return err < 0 ? err : ret;
+}
+
+static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
+{
+ AVFrame *decoded_frame, *f;
+ int i, ret = 0, err = 0, resample_changed;
+ int64_t best_effort_timestamp;
+ AVRational *frame_sample_aspect;
+
+ if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
+ return AVERROR(ENOMEM);
+ if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
+ return AVERROR(ENOMEM);
+ decoded_frame = ist->decoded_frame;
+ pkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
+
+ update_benchmark(NULL);
+ ret = avcodec_decode_video2(ist->dec_ctx,
+ decoded_frame, got_output, pkt);
+ update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
+
+ // The following line may be required in some cases where there is no parser
+ // or the parser does not has_b_frames correctly
+ if (ist->st->codec->has_b_frames < ist->dec_ctx->has_b_frames) {
+ if (ist->dec_ctx->codec_id == AV_CODEC_ID_H264) {
+ ist->st->codec->has_b_frames = ist->dec_ctx->has_b_frames;
+ } else
+ av_log_ask_for_sample(
+ ist->dec_ctx,
+ "has_b_frames is larger in decoder than demuxer %d > %d ",
+ ist->dec_ctx->has_b_frames,
+ ist->st->codec->has_b_frames
+ );
+ }
+
+ if (*got_output || ret<0)
+ decode_error_stat[ret<0] ++;
+
+ if (ret < 0 && exit_on_error)
+ exit_program(1);
+
+ if (*got_output && ret >= 0) {
+ if (ist->dec_ctx->width != decoded_frame->width ||
+ ist->dec_ctx->height != decoded_frame->height ||
+ ist->dec_ctx->pix_fmt != decoded_frame->format) {
+ av_log(NULL, AV_LOG_DEBUG, "Frame parameters mismatch context %d,%d,%d != %d,%d,%d\n",
+ decoded_frame->width,
+ decoded_frame->height,
+ decoded_frame->format,
+ ist->dec_ctx->width,
+ ist->dec_ctx->height,
+ ist->dec_ctx->pix_fmt);
+ }
+ }
+
+ if (!*got_output || ret < 0)
+ return ret;
+
+ if(ist->top_field_first>=0)
+ decoded_frame->top_field_first = ist->top_field_first;
+
+ ist->frames_decoded++;
+
+ if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
+ err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
+ if (err < 0)
+ goto fail;
+ }
+ ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
+
+ best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
+ if(best_effort_timestamp != AV_NOPTS_VALUE)
+ ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
+
+ if (debug_ts) {
+ av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
+ "frame_pts:%s frame_pts_time:%s best_effort_ts:%"PRId64" best_effort_ts_time:%s keyframe:%d frame_type:%d time_base:%d/%d\n",
+ ist->st->index, av_ts2str(decoded_frame->pts),
+ av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
+ best_effort_timestamp,
+ av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
+ decoded_frame->key_frame, decoded_frame->pict_type,
+ ist->st->time_base.num, ist->st->time_base.den);
+ }
+
+ pkt->size = 0;
+
+ if (ist->st->sample_aspect_ratio.num)
+ decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
+
+ resample_changed = ist->resample_width != decoded_frame->width ||
+ ist->resample_height != decoded_frame->height ||
+ ist->resample_pix_fmt != decoded_frame->format;
+ if (resample_changed) {
+ av_log(NULL, AV_LOG_INFO,
+ "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
+ ist->file_index, ist->st->index,
+ ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
+ decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
+
+ ist->resample_width = decoded_frame->width;
+ ist->resample_height = decoded_frame->height;
+ ist->resample_pix_fmt = decoded_frame->format;
+
+ for (i = 0; i < nb_filtergraphs; i++) {
+ if (ist_in_filtergraph(filtergraphs[i], ist) && ist->reinit_filters &&
+ configure_filtergraph(filtergraphs[i]) < 0) {
+ av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
+ exit_program(1);
+ }
+ }
+ }
+
+ frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
+ for (i = 0; i < ist->nb_filters; i++) {
+ if (!frame_sample_aspect->num)
+ *frame_sample_aspect = ist->st->sample_aspect_ratio;
+
+ if (i < ist->nb_filters - 1) {
+ f = ist->filter_frame;
+ err = av_frame_ref(f, decoded_frame);
+ if (err < 0)
+ break;
+ } else
+ f = decoded_frame;
+ ret = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f, AV_BUFFERSRC_FLAG_PUSH);
+ if (ret == AVERROR_EOF) {
+ ret = 0; /* ignore */
+ } else if (ret < 0) {
+ av_log(NULL, AV_LOG_FATAL,
+ "Failed to inject frame into filter network: %s\n", av_err2str(ret));
+ exit_program(1);
+ }
+ }
+
+fail:
+ av_frame_unref(ist->filter_frame);
+ av_frame_unref(decoded_frame);
+ return err < 0 ? err : ret;
+}
+
+static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
+{
+ AVSubtitle subtitle;
+ int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
+ &subtitle, got_output, pkt);
+
+ if (*got_output || ret<0)
+ decode_error_stat[ret<0] ++;
+
+ if (ret < 0 && exit_on_error)
+ exit_program(1);
+
+ if (ret < 0 || !*got_output) {
+ if (!pkt->size)
+ sub2video_flush(ist);
+ return ret;
+ }
+
+ if (ist->fix_sub_duration) {
+ int end = 1;
+ if (ist->prev_sub.got_output) {
+ end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
+ 1000, AV_TIME_BASE);
+ if (end < ist->prev_sub.subtitle.end_display_time) {
+ av_log(ist->dec_ctx, AV_LOG_DEBUG,
+ "Subtitle duration reduced from %d to %d%s\n",
+ ist->prev_sub.subtitle.end_display_time, end,
+ end <= 0 ? ", dropping it" : "");
+ ist->prev_sub.subtitle.end_display_time = end;
+ }
+ }
+ FFSWAP(int, *got_output, ist->prev_sub.got_output);
+ FFSWAP(int, ret, ist->prev_sub.ret);
+ FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle);
+ if (end <= 0)
+ goto out;
+ }
+
+ if (!*got_output)
+ return ret;
+
+ sub2video_update(ist, &subtitle);
+
+ if (!subtitle.num_rects)
+ goto out;
+
+ ist->frames_decoded++;
+
+ for (i = 0; i < nb_output_streams; i++) {
+ OutputStream *ost = output_streams[i];
+
+ if (!check_output_constraints(ist, ost) || !ost->encoding_needed
+ || ost->enc->type != AVMEDIA_TYPE_SUBTITLE)
+ continue;
+
+ do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle);
+ }
+
+out:
+ avsubtitle_free(&subtitle);
+ return ret;
+}
+
+static int send_filter_eof(InputStream *ist)
+{
+ int i, ret;
+ for (i = 0; i < ist->nb_filters; i++) {
+#if 1
+ ret = av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
+#else
+ ret = av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
+#endif
+ if (ret < 0)
+ return ret;
+ }
+ return 0;
+}
+
+/* pkt = NULL means EOF (needed to flush decoder buffers) */
+static int process_input_packet(InputStream *ist, const AVPacket *pkt)
+{
+ int ret = 0, i;
+ int got_output = 0;
+
+ AVPacket avpkt;
+ if (!ist->saw_first_ts) {
+ ist->dts = ist->st->avg_frame_rate.num ? - ist->dec_ctx->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
+ ist->pts = 0;
+ if (pkt && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
+ ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
+ ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
+ }
+ ist->saw_first_ts = 1;
+ }
+
+ if (ist->next_dts == AV_NOPTS_VALUE)
+ ist->next_dts = ist->dts;
+ if (ist->next_pts == AV_NOPTS_VALUE)
+ ist->next_pts = ist->pts;
+
+ if (!pkt) {
+ /* EOF handling */
+ av_init_packet(&avpkt);
+ avpkt.data = NULL;
+ avpkt.size = 0;
+ goto handle_eof;
+ } else {
+ avpkt = *pkt;
+ }
+
+ if (pkt->dts != AV_NOPTS_VALUE) {
+ ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
+ if (ist->dec_ctx->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
+ ist->next_pts = ist->pts = ist->dts;
+ }
+
+ // while we have more to decode or while the decoder did output something on EOF
+ while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
+ int duration;
+ handle_eof:
+
+ ist->pts = ist->next_pts;
+ ist->dts = ist->next_dts;
+
+ if (avpkt.size && avpkt.size != pkt->size &&
- !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
++ !(ist->dec->capabilities & AV_CODEC_CAP_SUBFRAMES)) {
+ av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
+ "Multiple frames in a packet from stream %d\n", pkt->stream_index);
+ ist->showed_multi_packet_warning = 1;
+ }
+
+ switch (ist->dec_ctx->codec_type) {
+ case AVMEDIA_TYPE_AUDIO:
+ ret = decode_audio (ist, &avpkt, &got_output);
+ break;
+ case AVMEDIA_TYPE_VIDEO:
+ ret = decode_video (ist, &avpkt, &got_output);
+ if (avpkt.duration) {
+ duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
+ } else if(ist->dec_ctx->framerate.num != 0 && ist->dec_ctx->framerate.den != 0) {
+ int ticks= av_stream_get_parser(ist->st) ? av_stream_get_parser(ist->st)->repeat_pict+1 : ist->dec_ctx->ticks_per_frame;
+ duration = ((int64_t)AV_TIME_BASE *
+ ist->dec_ctx->framerate.den * ticks) /
+ ist->dec_ctx->framerate.num / ist->dec_ctx->ticks_per_frame;
+ } else
+ duration = 0;
+
+ if(ist->dts != AV_NOPTS_VALUE && duration) {
+ ist->next_dts += duration;
+ }else
+ ist->next_dts = AV_NOPTS_VALUE;
+
+ if (got_output)
+ ist->next_pts += duration; //FIXME the duration is not correct in some cases
+ break;
+ case AVMEDIA_TYPE_SUBTITLE:
+ ret = transcode_subtitles(ist, &avpkt, &got_output);
+ break;
+ default:
+ return -1;
+ }
+
+ if (ret < 0) {
+ av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
+ ist->file_index, ist->st->index, av_err2str(ret));
+ if (exit_on_error)
+ exit_program(1);
+ break;
+ }
+
+ avpkt.dts=
+ avpkt.pts= AV_NOPTS_VALUE;
+
+ // touch data and size only if not EOF
+ if (pkt) {
+ if(ist->dec_ctx->codec_type != AVMEDIA_TYPE_AUDIO)
+ ret = avpkt.size;
+ avpkt.data += ret;
+ avpkt.size -= ret;
+ }
+ if (!got_output) {
+ continue;
+ }
+ if (got_output && !pkt)
+ break;
+ }
+
+ /* after flushing, send an EOF on all the filter inputs attached to the stream */
+ if (!pkt && ist->decoding_needed && !got_output) {
+ int ret = send_filter_eof(ist);
+ if (ret < 0) {
+ av_log(NULL, AV_LOG_FATAL, "Error marking filters as finished\n");
+ exit_program(1);
+ }
+ }
+
+ /* handle stream copy */
+ if (!ist->decoding_needed) {
+ ist->dts = ist->next_dts;
+ switch (ist->dec_ctx->codec_type) {
+ case AVMEDIA_TYPE_AUDIO:
+ ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
+ ist->dec_ctx->sample_rate;
+ break;
+ case AVMEDIA_TYPE_VIDEO:
+ if (ist->framerate.num) {
+ // TODO: Remove work-around for c99-to-c89 issue 7
+ AVRational time_base_q = AV_TIME_BASE_Q;
+ int64_t next_dts = av_rescale_q(ist->next_dts, time_base_q, av_inv_q(ist->framerate));
+ ist->next_dts = av_rescale_q(next_dts + 1, av_inv_q(ist->framerate), time_base_q);
+ } else if (pkt->duration) {
+ ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
+ } else if(ist->dec_ctx->framerate.num != 0) {
+ int ticks= av_stream_get_parser(ist->st) ? av_stream_get_parser(ist->st)->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
+ ist->next_dts += ((int64_t)AV_TIME_BASE *
+ ist->dec_ctx->framerate.den * ticks) /
+ ist->dec_ctx->framerate.num / ist->dec_ctx->ticks_per_frame;
+ }
+ break;
+ }
+ ist->pts = ist->dts;
+ ist->next_pts = ist->next_dts;
+ }
+ for (i = 0; pkt && i < nb_output_streams; i++) {
+ OutputStream *ost = output_streams[i];
+
+ if (!check_output_constraints(ist, ost) || ost->encoding_needed)
+ continue;
+
+ do_streamcopy(ist, ost, pkt);
+ }
+
+ return got_output;
+}
+
+static void print_sdp(void)
+{
+ char sdp[16384];
+ int i;
+ int j;
+ AVIOContext *sdp_pb;
+ AVFormatContext **avc = av_malloc_array(nb_output_files, sizeof(*avc));
+
+ if (!avc)
+ exit_program(1);
+ for (i = 0, j = 0; i < nb_output_files; i++) {
+ if (!strcmp(output_files[i]->ctx->oformat->name, "rtp")) {
+ avc[j] = output_files[i]->ctx;
+ j++;
+ }
+ }
+
+ av_sdp_create(avc, j, sdp, sizeof(sdp));
+
+ if (!sdp_filename) {
+ printf("SDP:\n%s\n", sdp);
+ fflush(stdout);
+ } else {
+ if (avio_open2(&sdp_pb, sdp_filename, AVIO_FLAG_WRITE, &int_cb, NULL) < 0) {
+ av_log(NULL, AV_LOG_ERROR, "Failed to open sdp file '%s'\n", sdp_filename);
+ } else {
+ avio_printf(sdp_pb, "SDP:\n%s", sdp);
+ avio_closep(&sdp_pb);
+ av_freep(&sdp_filename);
+ }
+ }
+
+ av_freep(&avc);
+}
+
+static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt)
+{
+ int i;
+ for (i = 0; hwaccels[i].name; i++)
+ if (hwaccels[i].pix_fmt == pix_fmt)
+ return &hwaccels[i];
+ return NULL;
+}
+
+static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
+{
+ InputStream *ist = s->opaque;
+ const enum AVPixelFormat *p;
+ int ret;
+
+ for (p = pix_fmts; *p != -1; p++) {
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
+ const HWAccel *hwaccel;
+
+ if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
+ break;
+
+ hwaccel = get_hwaccel(*p);
+ if (!hwaccel ||
+ (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
+ (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
+ continue;
+
+ ret = hwaccel->init(s);
+ if (ret < 0) {
+ if (ist->hwaccel_id == hwaccel->id) {
+ av_log(NULL, AV_LOG_FATAL,
+ "%s hwaccel requested for input stream #%d:%d, "
+ "but cannot be initialized.\n", hwaccel->name,
+ ist->file_index, ist->st->index);
+ return AV_PIX_FMT_NONE;
+ }
+ continue;
+ }
+ ist->active_hwaccel_id = hwaccel->id;
+ ist->hwaccel_pix_fmt = *p;
+ break;
+ }
+
+ return *p;
+}
+
+static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
+{
+ InputStream *ist = s->opaque;
+
+ if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
+ return ist->hwaccel_get_buffer(s, frame, flags);
+
+ return avcodec_default_get_buffer2(s, frame, flags);
+}
+
+static int init_input_stream(int ist_index, char *error, int error_len)
+{
+ int ret;
+ InputStream *ist = input_streams[ist_index];
+
+ if (ist->decoding_needed) {
+ AVCodec *codec = ist->dec;
+ if (!codec) {
+ snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
+ avcodec_get_name(ist->dec_ctx->codec_id), ist->file_index, ist->st->index);
+ return AVERROR(EINVAL);
+ }
+
+ ist->dec_ctx->opaque = ist;
+ ist->dec_ctx->get_format = get_format;
+ ist->dec_ctx->get_buffer2 = get_buffer;
+ ist->dec_ctx->thread_safe_callbacks = 1;
+
+ av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
+ if (ist->dec_ctx->codec_id == AV_CODEC_ID_DVB_SUBTITLE &&
+ (ist->decoding_needed & DECODING_FOR_OST)) {
+ av_dict_set(&ist->decoder_opts, "compute_edt", "1", AV_DICT_DONT_OVERWRITE);
+ if (ist->decoding_needed & DECODING_FOR_FILTER)
+ av_log(NULL, AV_LOG_WARNING, "Warning using DVB subtitles for filtering and output at the same time is not fully supported, also see -compute_edt [0|1]\n");
+ }
+
+ if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
+ av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
+ if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
+ if (ret == AVERROR_EXPERIMENTAL)
+ abort_codec_experimental(codec, 0);
+
+ snprintf(error, error_len,
+ "Error while opening decoder for input stream "
+ "#%d:%d : %s",
+ ist->file_index, ist->st->index, av_err2str(ret));
+ return ret;
+ }
+ assert_avoptions(ist->decoder_opts);
+ }
+
+ ist->next_pts = AV_NOPTS_VALUE;
+ ist->next_dts = AV_NOPTS_VALUE;
+
+ return 0;
+}
+
+static InputStream *get_input_stream(OutputStream *ost)
+{
+ if (ost->source_index >= 0)
+ return input_streams[ost->source_index];
+ return NULL;
+}
+
+static int compare_int64(const void *a, const void *b)
+{
+ int64_t va = *(int64_t *)a, vb = *(int64_t *)b;
+ return va < vb ? -1 : va > vb ? +1 : 0;
+}
+
+static int init_output_stream(OutputStream *ost, char *error, int error_len)
+{
+ int ret = 0;
+
+ if (ost->encoding_needed) {
+ AVCodec *codec = ost->enc;
+ AVCodecContext *dec = NULL;
+ InputStream *ist;
+
+ if ((ist = get_input_stream(ost)))
+ dec = ist->dec_ctx;
+ if (dec && dec->subtitle_header) {
+ /* ASS code assumes this buffer is null terminated so add extra byte. */
+ ost->enc_ctx->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
+ if (!ost->enc_ctx->subtitle_header)
+ return AVERROR(ENOMEM);
+ memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
+ ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
+ }
+ if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
+ av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
+ av_dict_set(&ost->encoder_opts, "side_data_only_packets", "1", 0);
+
+ if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
+ if (ret == AVERROR_EXPERIMENTAL)
+ abort_codec_experimental(codec, 1);
+ snprintf(error, error_len,
+ "Error while opening encoder for output stream #%d:%d - "
+ "maybe incorrect parameters such as bit_rate, rate, width or height",
+ ost->file_index, ost->index);
+ return ret;
+ }
+ if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
++ !(ost->enc->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE))
+ av_buffersink_set_frame_size(ost->filter->filter,
+ ost->enc_ctx->frame_size);
+ assert_avoptions(ost->encoder_opts);
+ if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000)
+ av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
+ " It takes bits/s as argument, not kbits/s\n");
+
+ ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx);
+ if (ret < 0) {
+ av_log(NULL, AV_LOG_FATAL,
+ "Error initializing the output stream codec context.\n");
+ exit_program(1);
+ }
+
+ // copy timebase while removing common factors
+ ost->st->time_base = av_add_q(ost->enc_ctx->time_base, (AVRational){0, 1});
+ ost->st->codec->codec= ost->enc_ctx->codec;
+ } else {
+ ret = av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts);
+ if (ret < 0) {
+ av_log(NULL, AV_LOG_FATAL,
+ "Error setting up codec context options.\n");
+ return ret;
+ }
+ // copy timebase while removing common factors
+ ost->st->time_base = av_add_q(ost->st->codec->time_base, (AVRational){0, 1});
+ }
+
+ return ret;
+}
+
+static void parse_forced_key_frames(char *kf, OutputStream *ost,
+ AVCodecContext *avctx)
+{
+ char *p;
+ int n = 1, i, size, index = 0;
+ int64_t t, *pts;
+
+ for (p = kf; *p; p++)
+ if (*p == ',')
+ n++;
+ size = n;
+ pts = av_malloc_array(size, sizeof(*pts));
+ if (!pts) {
+ av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
+ exit_program(1);
+ }
+
+ p = kf;
+ for (i = 0; i < n; i++) {
+ char *next = strchr(p, ',');
+
+ if (next)
+ *next++ = 0;
+
+ if (!memcmp(p, "chapters", 8)) {
+
+ AVFormatContext *avf = output_files[ost->file_index]->ctx;
+ int j;
+
+ if (avf->nb_chapters > INT_MAX - size ||
+ !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1,
+ sizeof(*pts)))) {
+ av_log(NULL, AV_LOG_FATAL,
+ "Could not allocate forced key frames array.\n");
+ exit_program(1);
+ }
+ t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0;
+ t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
+
+ for (j = 0; j < avf->nb_chapters; j++) {
+ AVChapter *c = avf->chapters[j];
+ av_assert1(index < size);
+ pts[index++] = av_rescale_q(c->start, c->time_base,
+ avctx->time_base) + t;
+ }
+
+ } else {
+
+ t = parse_time_or_die("force_key_frames", p, 1);
+ av_assert1(index < size);
+ pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
+
+ }
+
+ p = next;
+ }
+
+ av_assert0(index == size);
+ qsort(pts, size, sizeof(*pts), compare_int64);
+ ost->forced_kf_count = size;
+ ost->forced_kf_pts = pts;
+}
+
+static void report_new_stream(int input_index, AVPacket *pkt)
+{
+ InputFile *file = input_files[input_index];
+ AVStream *st = file->ctx->streams[pkt->stream_index];
+
+ if (pkt->stream_index < file->nb_streams_warn)
+ return;
+ av_log(file->ctx, AV_LOG_WARNING,
+ "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
+ av_get_media_type_string(st->codec->codec_type),
+ input_index, pkt->stream_index,
+ pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
+ file->nb_streams_warn = pkt->stream_index + 1;
+}
+
+static void set_encoder_id(OutputFile *of, OutputStream *ost)
+{
+ AVDictionaryEntry *e;
+
+ uint8_t *encoder_string;
+ int encoder_string_len;
+ int format_flags = 0;
+ int codec_flags = 0;
+
+ if (av_dict_get(ost->st->metadata, "encoder", NULL, 0))
+ return;
+
+ e = av_dict_get(of->opts, "fflags", NULL, 0);
+ if (e) {
+ const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
+ if (!o)
+ return;
+ av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
+ }
+ e = av_dict_get(ost->encoder_opts, "flags", NULL, 0);
+ if (e) {
+ const AVOption *o = av_opt_find(ost->enc_ctx, "flags", NULL, 0, 0);
+ if (!o)
+ return;
+ av_opt_eval_flags(ost->enc_ctx, o, e->value, &codec_flags);
+ }
+
+ encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
+ encoder_string = av_mallocz(encoder_string_len);
+ if (!encoder_string)
+ exit_program(1);
+
+ if (!(format_flags & AVFMT_FLAG_BITEXACT) && !(codec_flags & AV_CODEC_FLAG_BITEXACT))
+ av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
+ else
+ av_strlcpy(encoder_string, "Lavc ", encoder_string_len);
+ av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
+ av_dict_set(&ost->st->metadata, "encoder", encoder_string,
+ AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
+}
+
+static int transcode_init(void)
+{
+ int ret = 0, i, j, k;
+ AVFormatContext *oc;
+ OutputStream *ost;
+ InputStream *ist;
+ char error[1024] = {0};
+ int want_sdp = 1;
+
+ for (i = 0; i < nb_filtergraphs; i++) {
+ FilterGraph *fg = filtergraphs[i];
+ for (j = 0; j < fg->nb_outputs; j++) {
+ OutputFilter *ofilter = fg->outputs[j];
+ if (!ofilter->ost || ofilter->ost->source_index >= 0)
+ continue;
+ if (fg->nb_inputs != 1)
+ continue;
+ for (k = nb_input_streams-1; k >= 0 ; k--)
+ if (fg->inputs[0]->ist == input_streams[k])
+ break;
+ ofilter->ost->source_index = k;
+ }
+ }
+
+ /* init framerate emulation */
+ for (i = 0; i < nb_input_files; i++) {
+ InputFile *ifile = input_files[i];
+ if (ifile->rate_emu)
+ for (j = 0; j < ifile->nb_streams; j++)
+ input_streams[j + ifile->ist_index]->start = av_gettime_relative();
+ }
+
+ /* for each output stream, we compute the right encoding parameters */
+ for (i = 0; i < nb_output_streams; i++) {
+ AVCodecContext *enc_ctx;
+ AVCodecContext *dec_ctx = NULL;
+ ost = output_streams[i];
+ oc = output_files[ost->file_index]->ctx;
+ ist = get_input_stream(ost);
+
+ if (ost->attachment_filename)
+ continue;
+
+ enc_ctx = ost->stream_copy ? ost->st->codec : ost->enc_ctx;
+
+ if (ist) {
+ dec_ctx = ist->dec_ctx;
+
+ ost->st->disposition = ist->st->disposition;
+ enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
+ enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
+ } else {
+ for (j=0; j<oc->nb_streams; j++) {
+ AVStream *st = oc->streams[j];
+ if (st != ost->st && st->codec->codec_type == enc_ctx->codec_type)
+ break;
+ }
+ if (j == oc->nb_streams)
+ if (enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO || enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
+ ost->st->disposition = AV_DISPOSITION_DEFAULT;
+ }
+
+ if (ost->stream_copy) {
+ AVRational sar;
+ uint64_t extra_size;
+
+ av_assert0(ist && !ost->filter);
+
+ extra_size = (uint64_t)dec_ctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
+
+ if (extra_size > INT_MAX) {
+ return AVERROR(EINVAL);
+ }
+
+ /* if stream_copy is selected, no need to decode or encode */
+ enc_ctx->codec_id = dec_ctx->codec_id;
+ enc_ctx->codec_type = dec_ctx->codec_type;
+
+ if (!enc_ctx->codec_tag) {
+ unsigned int codec_tag;
+ if (!oc->oformat->codec_tag ||
+ av_codec_get_id (oc->oformat->codec_tag, dec_ctx->codec_tag) == enc_ctx->codec_id ||
+ !av_codec_get_tag2(oc->oformat->codec_tag, dec_ctx->codec_id, &codec_tag))
+ enc_ctx->codec_tag = dec_ctx->codec_tag;
+ }
+
+ enc_ctx->bit_rate = dec_ctx->bit_rate;
+ enc_ctx->rc_max_rate = dec_ctx->rc_max_rate;
+ enc_ctx->rc_buffer_size = dec_ctx->rc_buffer_size;
+ enc_ctx->field_order = dec_ctx->field_order;
+ if (dec_ctx->extradata_size) {
+ enc_ctx->extradata = av_mallocz(extra_size);
+ if (!enc_ctx->extradata) {
+ return AVERROR(ENOMEM);
+ }
+ memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size);
+ }
+ enc_ctx->extradata_size= dec_ctx->extradata_size;
+ enc_ctx->bits_per_coded_sample = dec_ctx->bits_per_coded_sample;
+
+ enc_ctx->time_base = ist->st->time_base;
+ /*
+ * Avi is a special case here because it supports variable fps but
+ * having the fps and timebase differe significantly adds quite some
+ * overhead
+ */
+ if(!strcmp(oc->oformat->name, "avi")) {
+ if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate)
+ && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base)
+ && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(dec_ctx->time_base)
+ && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(dec_ctx->time_base) < 1.0/500
+ || copy_tb==2){
+ enc_ctx->time_base.num = ist->st->r_frame_rate.den;
+ enc_ctx->time_base.den = 2*ist->st->r_frame_rate.num;
+ enc_ctx->ticks_per_frame = 2;
+ } else if ( copy_tb<0 && av_q2d(dec_ctx->time_base)*dec_ctx->ticks_per_frame > 2*av_q2d(ist->st->time_base)
+ && av_q2d(ist->st->time_base) < 1.0/500
+ || copy_tb==0){
+ enc_ctx->time_base = dec_ctx->time_base;
+ enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
+ enc_ctx->time_base.den *= 2;
+ enc_ctx->ticks_per_frame = 2;
+ }
+ } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
+ && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
+ && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
+ && strcmp(oc->oformat->name, "f4v")
+ ) {
+ if( copy_tb<0 && dec_ctx->time_base.den
+ && av_q2d(dec_ctx->time_base)*dec_ctx->ticks_per_frame > av_q2d(ist->st->time_base)
+ && av_q2d(ist->st->time_base) < 1.0/500
+ || copy_tb==0){
+ enc_ctx->time_base = dec_ctx->time_base;
+ enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
+ }
+ }
+ if ( enc_ctx->codec_tag == AV_RL32("tmcd")
+ && dec_ctx->time_base.num < dec_ctx->time_base.den
+ && dec_ctx->time_base.num > 0
+ && 121LL*dec_ctx->time_base.num > dec_ctx->time_base.den) {
+ enc_ctx->time_base = dec_ctx->time_base;
+ }
+
+ if (ist && !ost->frame_rate.num)
+ ost->frame_rate = ist->framerate;
+ if(ost->frame_rate.num)
+ enc_ctx->time_base = av_inv_q(ost->frame_rate);
+
+ av_reduce(&enc_ctx->time_base.num, &enc_ctx->time_base.den,
+ enc_ctx->time_base.num, enc_ctx->time_base.den, INT_MAX);
+
+ if (ist->st->nb_side_data) {
+ ost->st->side_data = av_realloc_array(NULL, ist->st->nb_side_data,
+ sizeof(*ist->st->side_data));
+ if (!ost->st->side_data)
+ return AVERROR(ENOMEM);
+
+ ost->st->nb_side_data = 0;
+ for (j = 0; j < ist->st->nb_side_data; j++) {
+ const AVPacketSideData *sd_src = &ist->st->side_data[j];
+ AVPacketSideData *sd_dst = &ost->st->side_data[ost->st->nb_side_data];
+
+ if (ost->rotate_overridden && sd_src->type == AV_PKT_DATA_DISPLAYMATRIX)
+ continue;
+
+ sd_dst->data = av_malloc(sd_src->size);
+ if (!sd_dst->data)
+ return AVERROR(ENOMEM);
+ memcpy(sd_dst->data, sd_src->data, sd_src->size);
+ sd_dst->size = sd_src->size;
+ sd_dst->type = sd_src->type;
+ ost->st->nb_side_data++;
+ }
+ }
+
+ ost->parser = av_parser_init(enc_ctx->codec_id);
+
+ switch (enc_ctx->codec_type) {
+ case AVMEDIA_TYPE_AUDIO:
+ if (audio_volume != 256) {
+ av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
+ exit_program(1);
+ }
+ enc_ctx->channel_layout = dec_ctx->channel_layout;
+ enc_ctx->sample_rate = dec_ctx->sample_rate;
+ enc_ctx->channels = dec_ctx->channels;
+ enc_ctx->frame_size = dec_ctx->frame_size;
+ enc_ctx->audio_service_type = dec_ctx->audio_service_type;
+ enc_ctx->block_align = dec_ctx->block_align;
+ enc_ctx->initial_padding = dec_ctx->delay;
+#if FF_API_AUDIOENC_DELAY
+ enc_ctx->delay = dec_ctx->delay;
+#endif
+ if((enc_ctx->block_align == 1 || enc_ctx->block_align == 1152 || enc_ctx->block_align == 576) && enc_ctx->codec_id == AV_CODEC_ID_MP3)
+ enc_ctx->block_align= 0;
+ if(enc_ctx->codec_id == AV_CODEC_ID_AC3)
+ enc_ctx->block_align= 0;
+ break;
+ case AVMEDIA_TYPE_VIDEO:
+ enc_ctx->pix_fmt = dec_ctx->pix_fmt;
+ enc_ctx->width = dec_ctx->width;
+ enc_ctx->height = dec_ctx->height;
+ enc_ctx->has_b_frames = dec_ctx->has_b_frames;
+ if (ost->frame_aspect_ratio.num) { // overridden by the -aspect cli option
+ sar =
+ av_mul_q(ost->frame_aspect_ratio,
+ (AVRational){ enc_ctx->height, enc_ctx->width });
+ av_log(NULL, AV_LOG_WARNING, "Overriding aspect ratio "
+ "with stream copy may produce invalid files\n");
+ }
+ else if (ist->st->sample_aspect_ratio.num)
+ sar = ist->st->sample_aspect_ratio;
+ else
+ sar = dec_ctx->sample_aspect_ratio;
+ ost->st->sample_aspect_ratio = enc_ctx->sample_aspect_ratio = sar;
+ ost->st->avg_frame_rate = ist->st->avg_frame_rate;
+ ost->st->r_frame_rate = ist->st->r_frame_rate;
+ break;
+ case AVMEDIA_TYPE_SUBTITLE:
+ enc_ctx->width = dec_ctx->width;
+ enc_ctx->height = dec_ctx->height;
+ break;
+ case AVMEDIA_TYPE_UNKNOWN:
+ case AVMEDIA_TYPE_DATA:
+ case AVMEDIA_TYPE_ATTACHMENT:
+ break;
+ default:
+ abort();
+ }
+ } else {
+ if (!ost->enc)
+ ost->enc = avcodec_find_encoder(enc_ctx->codec_id);
+ if (!ost->enc) {
+ /* should only happen when a default codec is not present. */
+ snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
+ avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
+ ret = AVERROR(EINVAL);
+ goto dump_format;
+ }
+
+ set_encoder_id(output_files[ost->file_index], ost);
+
+ if (!ost->filter &&
+ (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
+ enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO)) {
+ FilterGraph *fg;
+ fg = init_simple_filtergraph(ist, ost);
+ if (configure_filtergraph(fg)) {
+ av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
+ exit_program(1);
+ }
+ }
+
+ if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
+ if (!ost->frame_rate.num)
+ ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
+ if (ist && !ost->frame_rate.num)
+ ost->frame_rate = ist->framerate;
+ if (ist && !ost->frame_rate.num)
+ ost->frame_rate = ist->st->r_frame_rate;
+ if (ist && !ost->frame_rate.num) {
+ ost->frame_rate = (AVRational){25, 1};
+ av_log(NULL, AV_LOG_WARNING,
+ "No information "
+ "about the input framerate is available. Falling "
+