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avcodec/options: do a more thorough clean up in avcodec_copy_context() 

Free coded_frame, coded_side_data and unref hw_device_ctx to prevent
potential leaks.

Reviewed-by: Aaron Levinson <alevinsn@aracnet.com>
Tested-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2017-04-24 14:53:47 -03:00
parent 54a4c9b4e9
commit cac8de2da5
1 changed files with 15 additions and 0 deletions
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15
libavcodec/options.c
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@ -190,14 +190,26 @@ void avcodec_free_context(AVCodecContext **pavctx)
#if FF_API_COPY_CONTEXT
static void copy_context_reset(AVCodecContext *avctx)
{
int i;
av_opt_free(avctx);
#if FF_API_CODED_FRAME
FF_DISABLE_DEPRECATION_WARNINGS
av_frame_free(&avctx->coded_frame);
FF_ENABLE_DEPRECATION_WARNINGS
#endif
av_freep(&avctx->rc_override);
av_freep(&avctx->intra_matrix);
av_freep(&avctx->inter_matrix);
av_freep(&avctx->extradata);
av_freep(&avctx->subtitle_header);
av_buffer_unref(&avctx->hw_frames_ctx);
av_buffer_unref(&avctx->hw_device_ctx);
for (i = 0; i < avctx->nb_coded_side_data; i++)
av_freep(&avctx->coded_side_data[i].data);
av_freep(&avctx->coded_side_data);
avctx->subtitle_header_size = 0;
avctx->nb_coded_side_data = 0;
avctx->extradata_size = 0;
}
@ -238,11 +250,14 @@ FF_ENABLE_DEPRECATION_WARNINGS
/* reallocate values that should be allocated separately */
dest->extradata = NULL;
dest->coded_side_data = NULL;
dest->intra_matrix = NULL;
dest->inter_matrix = NULL;
dest->rc_override = NULL;
dest->subtitle_header = NULL;
dest->hw_frames_ctx = NULL;
dest->hw_device_ctx = NULL;
dest->nb_coded_side_data = 0;
#define alloc_and_copy_or_fail(obj, size, pad) \
if (src->obj && size > 0) { \