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avviddec: Split allocation tracking from decode-only-ness

Browse source 
When doing subframe decoding, handle_frame will be called multiple
times, so the DECODE_ONLY flag gets re-set when it shouldn't. Instead,
let's create our own flag to track this.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-libav/-/merge_requests/66>
This commit is contained in:
Olivier Crête 2020-01-22 12:39:47 -05:00 committed by Stéphane Cerveau
parent 678773bb64
commit 81cbd0deb6
1 changed files with 18 additions and 2 deletions
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16
ext/libav/gstavviddec.c
View file

@ -35,6 +35,8 @@
GST_DEBUG_CATEGORY_STATIC (GST_CAT_PERFORMANCE);
#define GST_FFMPEG_VIDEO_CODEC_FRAME_FLAG_ALLOCATED (1<<15)
#define MAX_TS_MASK 0xff
#define DEFAULT_LOWRES 0
@ -647,6 +649,8 @@ gst_ffmpegviddec_video_frame_free (GstFFMpegVidDec * ffmpegdec,
if (frame->mapped)
gst_video_frame_unmap (&frame->vframe);
GST_VIDEO_CODEC_FRAME_FLAG_UNSET (frame->frame,
GST_FFMPEG_VIDEO_CODEC_FRAME_FLAG_ALLOCATED);
gst_video_decoder_release_frame (GST_VIDEO_DECODER (ffmpegdec), frame->frame);
gst_buffer_replace (&frame->buffer, NULL);
if (frame->avbuffer) {
@ -840,6 +844,8 @@ gst_ffmpegviddec_get_buffer2 (AVCodecContext * context, AVFrame * picture,
/* now it has a buffer allocated, so it is real and will also
* be _released */
GST_VIDEO_CODEC_FRAME_FLAG_SET (frame,
GST_FFMPEG_VIDEO_CODEC_FRAME_FLAG_ALLOCATED);
GST_VIDEO_CODEC_FRAME_FLAG_UNSET (frame,
GST_VIDEO_CODEC_FRAME_FLAG_DECODE_ONLY);
@ -1802,6 +1808,8 @@ gst_ffmpegviddec_video_frame (GstFFMpegVidDec * ffmpegdec,
GST_TIME_FORMAT, tmp, tmp->system_frame_number,
GST_TIME_ARGS (tmp->pts), GST_TIME_ARGS (tmp->dts));
/* drop extra ref and remove from frame list */
GST_VIDEO_CODEC_FRAME_FLAG_UNSET (tmp,
GST_FFMPEG_VIDEO_CODEC_FRAME_FLAG_ALLOCATED);
gst_video_decoder_release_frame (dec, tmp);
} else {
/* drop extra ref we got */
@ -1814,6 +1822,10 @@ gst_ffmpegviddec_video_frame (GstFFMpegVidDec * ffmpegdec,
av_frame_unref (ffmpegdec->picture);
if (frame)
GST_VIDEO_CODEC_FRAME_FLAG_UNSET (frame,
GST_FFMPEG_VIDEO_CODEC_FRAME_FLAG_ALLOCATED);
/* FIXME: Ideally we would remap the buffer read-only now before pushing but
* libav might still have a reference to it!
*/
@ -1838,6 +1850,8 @@ beach:
no_output:
{
GST_DEBUG_OBJECT (ffmpegdec, "no output buffer");
GST_VIDEO_CODEC_FRAME_FLAG_UNSET (frame,
GST_FFMPEG_VIDEO_CODEC_FRAME_FLAG_ALLOCATED);
gst_video_decoder_drop_frame (GST_VIDEO_DECODER (ffmpegdec), out_frame);
goto beach;
}
@ -1940,6 +1954,8 @@ gst_ffmpegviddec_handle_frame (GstVideoDecoder * decoder,
}
/* treat frame as void until a buffer is requested for it */
if (!GST_VIDEO_CODEC_FRAME_FLAG_IS_SET (frame,
GST_FFMPEG_VIDEO_CODEC_FRAME_FLAG_ALLOCATED))
GST_VIDEO_CODEC_FRAME_FLAG_SET (frame,
GST_VIDEO_CODEC_FRAME_FLAG_DECODE_ONLY);