#include <stdio.h>
#include "libavutil/avassert.h"
+#include "libavutil/buffer.h"
+#include "libavutil/hwcontext.h"
#include "libavutil/imgutils.h"
#include "libavutil/mem.h"
#include "internal.h"
#include "video.h"
-AVFilterBufferRef *ff_null_get_video_buffer(AVFilterLink *link, int perms, int w, int h)
-{
- return ff_get_video_buffer(link->dst->outputs[0], perms, w, h);
-}
-
-AVFilterBufferRef *ff_default_get_video_buffer(AVFilterLink *link, int perms, int w, int h)
-{
- int linesize[4];
- uint8_t *data[4];
- int i;
- AVFilterBufferRef *picref = NULL;
- AVFilterPool *pool = link->pool;
- int full_perms = AV_PERM_READ | AV_PERM_WRITE | AV_PERM_PRESERVE |
- AV_PERM_REUSE | AV_PERM_REUSE2 | AV_PERM_ALIGN;
-
- av_assert1(!(perms & ~(full_perms | AV_PERM_NEG_LINESIZES)));
-
- if (pool) {
- for (i = 0; i < POOL_SIZE; i++) {
- picref = pool->pic[i];
- if (picref && picref->buf->format == link->format && picref->buf->w == w && picref->buf->h == h) {
- AVFilterBuffer *pic = picref->buf;
- pool->pic[i] = NULL;
- pool->count--;
- picref->video->w = w;
- picref->video->h = h;
- picref->perms = full_perms;
- picref->format = link->format;
- pic->refcount = 1;
- memcpy(picref->data, pic->data, sizeof(picref->data));
- memcpy(picref->linesize, pic->linesize, sizeof(picref->linesize));
- pool->refcount++;
- return picref;
- }
- }
- } else {
- pool = link->pool = av_mallocz(sizeof(AVFilterPool));
- pool->refcount = 1;
- }
-
- // align: +2 is needed for swscaler, +16 to be SIMD-friendly
- if ((i = av_image_alloc(data, linesize, w, h, link->format, 32)) < 0)
- return NULL;
-
- picref = avfilter_get_video_buffer_ref_from_arrays(data, linesize,
- full_perms, w, h, link->format);
- if (!picref) {
- av_free(data[0]);
- return NULL;
- }
-
- memset(data[0], 128, i);
-
- picref->buf->priv = pool;
- picref->buf->free = NULL;
- pool->refcount++;
-
- return picref;
-}
-
-AVFilterBufferRef *
-avfilter_get_video_buffer_ref_from_arrays(uint8_t * const data[4], const int linesize[4], int perms,
- int w, int h, enum PixelFormat format)
-{
- AVFilterBuffer *pic = av_mallocz(sizeof(AVFilterBuffer));
- AVFilterBufferRef *picref = av_mallocz(sizeof(AVFilterBufferRef));
-
- if (!pic || !picref)
- goto fail;
-
- picref->buf = pic;
- picref->buf->free = ff_avfilter_default_free_buffer;
- if (!(picref->video = av_mallocz(sizeof(AVFilterBufferRefVideoProps))))
- goto fail;
-
- pic->w = picref->video->w = w;
- pic->h = picref->video->h = h;
-
- /* make sure the buffer gets read permission or it's useless for output */
- picref->perms = perms | AV_PERM_READ;
-
- pic->refcount = 1;
- picref->type = AVMEDIA_TYPE_VIDEO;
- pic->format = picref->format = format;
-
- memcpy(pic->data, data, 4*sizeof(data[0]));
- memcpy(pic->linesize, linesize, 4*sizeof(linesize[0]));
- memcpy(picref->data, pic->data, sizeof(picref->data));
- memcpy(picref->linesize, pic->linesize, sizeof(picref->linesize));
-
- pic-> extended_data = pic->data;
- picref->extended_data = picref->data;
+#define BUFFER_ALIGN 32
- picref->pts = AV_NOPTS_VALUE;
- return picref;
-
-fail:
- if (picref && picref->video)
- av_free(picref->video);
- av_free(picref);
- av_free(pic);
- return NULL;
-}
-
-AVFilterBufferRef *ff_get_video_buffer(AVFilterLink *link, int perms, int w, int h)
+AVFrame *ff_null_get_video_buffer(AVFilterLink *link, int w, int h)
{
- AVFilterBufferRef *ret = NULL;
-
- av_unused char buf[16];
- FF_TPRINTF_START(NULL, get_video_buffer); ff_tlog_link(NULL, link, 0);
- ff_tlog(NULL, " perms:%s w:%d h:%d\n", ff_get_ref_perms_string(buf, sizeof(buf), perms), w, h);
-
- if (link->dstpad->get_video_buffer)
- ret = link->dstpad->get_video_buffer(link, perms, w, h);
-
- if (!ret)
- ret = ff_default_get_video_buffer(link, perms, w, h);
-
- if (ret)
- ret->type = AVMEDIA_TYPE_VIDEO;
-
- FF_TPRINTF_START(NULL, get_video_buffer); ff_tlog_link(NULL, link, 0); ff_tlog(NULL, " returning "); ff_tlog_ref(NULL, ret, 1);
-
- return ret;
+ return ff_get_video_buffer(link->dst->outputs[0], w, h);
}
-int ff_null_start_frame(AVFilterLink *link, AVFilterBufferRef *picref)
+AVFrame *ff_default_get_video_buffer(AVFilterLink *link, int w, int h)
{
- AVFilterBufferRef *buf_out = avfilter_ref_buffer(picref, ~0);
- if (!buf_out)
- return AVERROR(ENOMEM);
- return ff_start_frame(link->dst->outputs[0], buf_out);
-}
+ AVFrame *frame = NULL;
+ int pool_width = 0;
+ int pool_height = 0;
+ int pool_align = 0;
+ enum AVPixelFormat pool_format = AV_PIX_FMT_NONE;
-// for filters that support (but don't require) outpic==inpic
-int ff_inplace_start_frame(AVFilterLink *inlink, AVFilterBufferRef *inpicref)
-{
- AVFilterLink *outlink = inlink->dst->outputs[0];
- AVFilterBufferRef *outpicref = NULL, *for_next_filter;
- int ret = 0;
-
- if (inpicref->perms & AV_PERM_WRITE) {
- outpicref = avfilter_ref_buffer(inpicref, ~0);
- if (!outpicref)
- return AVERROR(ENOMEM);
- } else {
- outpicref = ff_get_video_buffer(outlink, AV_PERM_WRITE, outlink->w, outlink->h);
- if (!outpicref)
- return AVERROR(ENOMEM);
+ if (link->hw_frames_ctx &&
+ ((AVHWFramesContext*)link->hw_frames_ctx->data)->format == link->format) {
+ int ret;
+ AVFrame *frame = av_frame_alloc();
- avfilter_copy_buffer_ref_props(outpicref, inpicref);
- outpicref->video->w = outlink->w;
- outpicref->video->h = outlink->h;
- }
+ if (!frame)
+ return NULL;
- for_next_filter = avfilter_ref_buffer(outpicref, ~0);
- if (for_next_filter)
- ret = ff_start_frame(outlink, for_next_filter);
- else
- ret = AVERROR(ENOMEM);
+ ret = av_hwframe_get_buffer(link->hw_frames_ctx, frame, 0);
+ if (ret < 0)
+ av_frame_free(&frame);
- if (ret < 0) {
- avfilter_unref_bufferp(&outpicref);
- return ret;
+ return frame;
}
- outlink->out_buf = outpicref;
- return 0;
-}
-
-static int default_start_frame(AVFilterLink *inlink, AVFilterBufferRef *picref)
-{
- AVFilterLink *outlink = NULL;
-
- if (inlink->dst->nb_outputs)
- outlink = inlink->dst->outputs[0];
-
- if (outlink) {
- AVFilterBufferRef *buf_out;
- outlink->out_buf = ff_get_video_buffer(outlink, AV_PERM_WRITE, outlink->w, outlink->h);
- if (!outlink->out_buf)
- return AVERROR(ENOMEM);
-
- avfilter_copy_buffer_ref_props(outlink->out_buf, picref);
- outlink->out_buf->video->w = outlink->w;
- outlink->out_buf->video->h = outlink->h;
- buf_out = avfilter_ref_buffer(outlink->out_buf, ~0);
- if (!buf_out)
- return AVERROR(ENOMEM);
-
- return ff_start_frame(outlink, buf_out);
- }
- return 0;
-}
-
-static void clear_link(AVFilterLink *link)
-{
- avfilter_unref_bufferp(&link->cur_buf);
- avfilter_unref_bufferp(&link->src_buf);
- avfilter_unref_bufferp(&link->out_buf);
- link->cur_buf_copy = NULL; /* we do not own the reference */
-}
-
-/* XXX: should we do the duplicating of the picture ref here, instead of
- * forcing the source filter to do it? */
-int ff_start_frame(AVFilterLink *link, AVFilterBufferRef *picref)
-{
- int (*start_frame)(AVFilterLink *, AVFilterBufferRef *);
- AVFilterPad *src = link->srcpad;
- AVFilterPad *dst = link->dstpad;
- int ret, perms;
- AVFilterCommand *cmd= link->dst->command_queue;
- int64_t pts;
-
- FF_TPRINTF_START(NULL, start_frame); ff_tlog_link(NULL, link, 0); ff_tlog(NULL, " "); ff_tlog_ref(NULL, picref, 1);
-
- if (!(start_frame = dst->start_frame))
- start_frame = default_start_frame;
-
- av_assert1((picref->perms & src->min_perms) == src->min_perms);
- picref->perms &= ~ src->rej_perms;
- perms = picref->perms;
-
- if (picref->linesize[0] < 0)
- perms |= AV_PERM_NEG_LINESIZES;
- /* prepare to copy the picture if it has insufficient permissions */
- if ((dst->min_perms & perms) != dst->min_perms || dst->rej_perms & perms) {
- av_log(link->dst, AV_LOG_DEBUG,
- "frame copy needed (have perms %x, need %x, reject %x)\n",
- picref->perms,
- link->dstpad->min_perms, link->dstpad->rej_perms);
-
- link->cur_buf = ff_get_video_buffer(link, dst->min_perms, link->w, link->h);
- if (!link->cur_buf) {
- avfilter_unref_bufferp(&picref);
- return AVERROR(ENOMEM);
+ if (!link->frame_pool) {
+ link->frame_pool = ff_frame_pool_video_init(av_buffer_allocz, w, h,
+ link->format, BUFFER_ALIGN);
+ if (!link->frame_pool)
+ return NULL;
+ } else {
+ if (ff_frame_pool_get_video_config(link->frame_pool,
+ &pool_width, &pool_height,
+ &pool_format, &pool_align) < 0) {
+ return NULL;
}
- link->src_buf = picref;
- avfilter_copy_buffer_ref_props(link->cur_buf, link->src_buf);
-
- /* copy palette if required */
- if (av_pix_fmt_descriptors[link->format].flags & PIX_FMT_PAL)
- memcpy(link->cur_buf->data[1], link->src_buf-> data[1], AVPALETTE_SIZE);
- }
- else
- link->cur_buf = picref;
-
- link->cur_buf_copy = link->cur_buf;
+ if (pool_width != w || pool_height != h ||
+ pool_format != link->format || pool_align != BUFFER_ALIGN) {
- while(cmd && cmd->time <= picref->pts * av_q2d(link->time_base)){
- av_log(link->dst, AV_LOG_DEBUG,
- "Processing command time:%f command:%s arg:%s\n",
- cmd->time, cmd->command, cmd->arg);
- avfilter_process_command(link->dst, cmd->command, cmd->arg, 0, 0, cmd->flags);
- ff_command_queue_pop(link->dst);
- cmd= link->dst->command_queue;
- }
- pts = link->cur_buf->pts;
- ret = start_frame(link, link->cur_buf);
- ff_update_link_current_pts(link, pts);
- if (ret < 0)
- clear_link(link);
- else
- /* incoming buffers must not be freed in start frame,
- because they can still be in use by the automatic copy mechanism */
- av_assert1(link->cur_buf_copy->buf->refcount > 0);
-
- return ret;
-}
-
-int ff_null_end_frame(AVFilterLink *link)
-{
- return ff_end_frame(link->dst->outputs[0]);
-}
-
-static int default_end_frame(AVFilterLink *inlink)
-{
- AVFilterLink *outlink = NULL;
-
- if (inlink->dst->nb_outputs)
- outlink = inlink->dst->outputs[0];
-
- if (outlink) {
- return ff_end_frame(outlink);
+ ff_frame_pool_uninit((FFFramePool **)&link->frame_pool);
+ link->frame_pool = ff_frame_pool_video_init(av_buffer_allocz, w, h,
+ link->format, BUFFER_ALIGN);
+ if (!link->frame_pool)
+ return NULL;
+ }
}
- return 0;
-}
-int ff_end_frame(AVFilterLink *link)
-{
- int (*end_frame)(AVFilterLink *);
- int ret;
-
- if (!(end_frame = link->dstpad->end_frame))
- end_frame = default_end_frame;
-
- ret = end_frame(link);
-
- clear_link(link);
-
- return ret;
-}
-
-int ff_null_draw_slice(AVFilterLink *link, int y, int h, int slice_dir)
-{
- return ff_draw_slice(link->dst->outputs[0], y, h, slice_dir);
-}
-
-static int default_draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
-{
- AVFilterLink *outlink = NULL;
+ frame = ff_frame_pool_get(link->frame_pool);
+ if (!frame)
+ return NULL;
- if (inlink->dst->nb_outputs)
- outlink = inlink->dst->outputs[0];
+ frame->sample_aspect_ratio = link->sample_aspect_ratio;
- if (outlink)
- return ff_draw_slice(outlink, y, h, slice_dir);
- return 0;
+ return frame;
}
-int ff_draw_slice(AVFilterLink *link, int y, int h, int slice_dir)
+AVFrame *ff_get_video_buffer(AVFilterLink *link, int w, int h)
{
- uint8_t *src[4], *dst[4];
- int i, j, vsub, ret;
- int (*draw_slice)(AVFilterLink *, int, int, int);
+ AVFrame *ret = NULL;
- FF_TPRINTF_START(NULL, draw_slice); ff_tlog_link(NULL, link, 0); ff_tlog(NULL, " y:%d h:%d dir:%d\n", y, h, slice_dir);
-
- /* copy the slice if needed for permission reasons */
- if (link->src_buf) {
- vsub = av_pix_fmt_descriptors[link->format].log2_chroma_h;
-
- for (i = 0; i < 4; i++) {
- if (link->src_buf->data[i]) {
- src[i] = link->src_buf-> data[i] +
- (y >> (i==1 || i==2 ? vsub : 0)) * link->src_buf-> linesize[i];
- dst[i] = link->cur_buf_copy->data[i] +
- (y >> (i==1 || i==2 ? vsub : 0)) * link->cur_buf_copy->linesize[i];
- } else
- src[i] = dst[i] = NULL;
- }
-
- for (i = 0; i < 4; i++) {
- int planew =
- av_image_get_linesize(link->format, link->cur_buf_copy->video->w, i);
+ FF_TPRINTF_START(NULL, get_video_buffer); ff_tlog_link(NULL, link, 0);
- if (!src[i]) continue;
+ if (link->dstpad->get_video_buffer)
+ ret = link->dstpad->get_video_buffer(link, w, h);
- for (j = 0; j < h >> (i==1 || i==2 ? vsub : 0); j++) {
- memcpy(dst[i], src[i], planew);
- src[i] += link->src_buf->linesize[i];
- dst[i] += link->cur_buf_copy->linesize[i];
- }
- }
- }
+ if (!ret)
+ ret = ff_default_get_video_buffer(link, w, h);
- if (!(draw_slice = link->dstpad->draw_slice))
- draw_slice = default_draw_slice;
- ret = draw_slice(link, y, h, slice_dir);
- if (ret < 0)
- clear_link(link);
- else
- /* incoming buffers must not be freed in start frame,
- because they can still be in use by the automatic copy mechanism */
- av_assert1(link->cur_buf_copy->buf->refcount > 0);
return ret;
}
-
-int avfilter_default_end_frame(AVFilterLink *inlink)
-{
- return default_end_frame(inlink);
-}
-