[FFmpeg-devel] [PATCH 6/7] avformat/dashenc: add missing padding to the updated extradata

[Andreas Rheinhardt]

James Almer:
> Signed-off-by: James Almer <jamrial at gmail.com>
> ---
>  libavformat/dashenc.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/libavformat/dashenc.c b/libavformat/dashenc.c
> index bded260806..50eba370d9 100644
> --- a/libavformat/dashenc.c
> +++ b/libavformat/dashenc.c
> @@ -1476,12 +1476,13 @@ static int update_stream_extradata(AVFormatContext *s, OutputStream *os,
>      if (!extradata_size)
>          return 0;
>  
> -    new_extradata = av_malloc(extradata_size);
> +    new_extradata = av_malloc(extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
>  
>      if (!new_extradata)
>          return AVERROR(ENOMEM);
>  
>      memcpy(new_extradata, extradata, extradata_size);
> +    memset(new_extradata + extradata_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
>  
>      os->ctx->streams[0]->codecpar->extradata = new_extradata;
>      os->ctx->streams[0]->codecpar->extradata_size = extradata_size;
> 
Is there a reason you are not using ff_alloc_extradata?

- Andreas