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avviddec: Wrap the original AVBufferRef in our own buffer for the destroy function

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Just adding a dummy buffer at the very end might not be enough as there
already might be too many buffers.
This commit is contained in:
Sebastian Dröge 2015-06-26 16:50:16 +02:00
parent 9b2c0c2dbc
commit 8cb8461f7e
1 changed files with 18 additions and 6 deletions
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24
ext/libav/gstavviddec.c
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@ -566,6 +566,7 @@ typedef struct
gboolean mapped;
GstVideoFrame vframe;
GstBuffer *buffer;
AVBufferRef *avbuffer;
} GstFFMpegVidDecVideoFrame;
static GstFFMpegVidDecVideoFrame *
@ -593,6 +594,9 @@ gst_ffmpegviddec_video_frame_free (GstFFMpegVidDec * ffmpegdec,
gst_video_frame_unmap (&frame->vframe);
gst_video_decoder_release_frame (GST_VIDEO_DECODER (ffmpegdec), frame->frame);
gst_buffer_replace (&frame->buffer, NULL);
if (frame->avbuffer) {
av_buffer_unref (&frame->avbuffer);
}
g_slice_free (GstFFMpegVidDecVideoFrame, frame);
}
@ -658,7 +662,7 @@ gst_ffmpegviddec_get_buffer (AVCodecContext * context, AVFrame * picture)
FALSE)))
goto negotiate_failed;
if (!ffmpegdec->current_dr)
if (TRUE || !ffmpegdec->current_dr)
goto no_dr;
ret =
@ -752,16 +756,24 @@ invalid_frame:
fallback:
{
int c;
gboolean first = TRUE;
int ret = avcodec_default_get_buffer (context, picture);
for (c = 0; c < AV_NUM_DATA_POINTERS; c++) {
ffmpegdec->stride[c] = picture->linesize[c];
if (picture->buf[c] == NULL && first) {
picture->buf[c] =
av_buffer_create (NULL, 0, dummy_free_buffer, dframe, 0);
first = FALSE;
/* Wrap our buffer around the default one to be able to have a callback
* when our data can be freed. Just putting our data into the first free
* buffer might not work if there are too many allocated already
*/
if (c == 0) {
if (picture->buf[c]) {
dframe->avbuffer = picture->buf[c];
picture->buf[c] =
av_buffer_create (NULL, 0, dummy_free_buffer, dframe, 0);
} else {
picture->buf[c] =
av_buffer_create (NULL, 0, dummy_free_buffer, dframe, 0);
}
}
}