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avvidenc: Make sure to keep input data alive until libav is done with it

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This commit is contained in:
Sebastian Dröge 2015-06-28 16:27:52 +02:00
parent 3ca7c041b1
commit 3943cdf18a
1 changed files with 30 additions and 5 deletions
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35
ext/libav/gstavvidenc.c
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@ -580,6 +580,22 @@ gst_ffmpegvidenc_free_avpacket (gpointer pkt)
g_slice_free (AVPacket, pkt);
}
typedef struct
{
GstBuffer *buffer;
GstVideoFrame vframe;
} BufferInfo;
static void
buffer_info_free (void *opaque, guint8 * data)
{
BufferInfo *info = opaque;
gst_video_frame_unmap (&info->vframe);
gst_buffer_unref (info->buffer);
g_slice_free (BufferInfo, info);
}
static GstFlowReturn
gst_ffmpegvidenc_handle_frame (GstVideoEncoder * encoder,
GstVideoCodecFrame * frame)
@ -588,24 +604,33 @@ gst_ffmpegvidenc_handle_frame (GstVideoEncoder * encoder,
GstBuffer *outbuf;
gint ret = 0, c;
GstVideoInfo *info = &ffmpegenc->input_state->info;
GstVideoFrame vframe;
AVPacket *pkt;
int have_data = 0;
BufferInfo *buffer_info;
if (GST_VIDEO_CODEC_FRAME_IS_FORCE_KEYFRAME (frame))
ffmpegenc->picture->pict_type = AV_PICTURE_TYPE_I;
if (!gst_video_frame_map (&vframe, info, frame->input_buffer, GST_MAP_READ)) {
buffer_info = g_slice_new0 (BufferInfo);
buffer_info->buffer = gst_buffer_ref (frame->input_buffer);
if (!gst_video_frame_map (&buffer_info->vframe, info, frame->input_buffer,
GST_MAP_READ)) {
GST_ERROR_OBJECT (encoder, "Failed to map input buffer");
gst_buffer_unref (buffer_info->buffer);
g_slice_free (BufferInfo, buffer_info);
return GST_FLOW_ERROR;
}
/* Fill avpicture */
ffmpegenc->picture->buf[0] =
av_buffer_create (NULL, 0, buffer_info_free, buffer_info, 0);
for (c = 0; c < AV_NUM_DATA_POINTERS; c++) {
if (c < GST_VIDEO_INFO_N_COMPONENTS (info)) {
ffmpegenc->picture->data[c] = GST_VIDEO_FRAME_PLANE_DATA (&vframe, c);
ffmpegenc->picture->data[c] =
GST_VIDEO_FRAME_PLANE_DATA (&buffer_info->vframe, c);
ffmpegenc->picture->linesize[c] =
GST_VIDEO_FRAME_COMP_STRIDE (&vframe, c);
GST_VIDEO_FRAME_COMP_STRIDE (&buffer_info->vframe, c);
} else {
ffmpegenc->picture->data[c] = NULL;
ffmpegenc->picture->linesize[c] = 0;
@ -623,7 +648,7 @@ gst_ffmpegvidenc_handle_frame (GstVideoEncoder * encoder,
avcodec_encode_video2 (ffmpegenc->context, pkt, ffmpegenc->picture,
&have_data);
gst_video_frame_unmap (&vframe);
av_frame_unref (ffmpegenc->picture);
if (ret < 0 || !have_data)
g_slice_free (AVPacket, pkt);