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Diffstat (limited to 'libavcodec/utils.c')
-rw-r--r--libavcodec/utils.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 219be6b7fb..e25f1dfb41 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -994,24 +994,26 @@ static void apply_param_change(AVCodecContext *avctx, AVPacket *avpkt)
int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
int *got_picture_ptr,
- AVPacket *avpkt)
+ const AVPacket *avpkt)
{
int ret;
+ // copy to ensure we do not change avpkt
+ AVPacket tmp = *avpkt;
*got_picture_ptr= 0;
if((avctx->coded_width||avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx))
return -1;
if((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type&FF_THREAD_FRAME)){
- av_packet_split_side_data(avpkt);
- apply_param_change(avctx, avpkt);
- avctx->pkt = avpkt;
+ int did_split = av_packet_split_side_data(&tmp);
+ apply_param_change(avctx, &tmp);
+ avctx->pkt = &tmp;
if (HAVE_THREADS && avctx->active_thread_type&FF_THREAD_FRAME)
ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
- avpkt);
+ &tmp);
else {
ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
- avpkt);
+ &tmp);
picture->pkt_dts= avpkt->dts;
if(!avctx->has_b_frames){
@@ -1030,6 +1032,9 @@ int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *pi
emms_c(); //needed to avoid an emms_c() call before every return;
+ avctx->pkt = NULL;
+ if (did_split)
+ ff_packet_free_side_data(&tmp);
if (*got_picture_ptr){
avctx->frame_number++;