On Fri, 2014-11-28 at 13:16 +0100, Anton Khirnov wrote:
> Checking the codec context parameters to find out this information is
> far too unreliable to be useful, so it is safer to assume B-frames are
> always present.
> ---
>  libavformat/mxfenc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/libavformat/mxfenc.c b/libavformat/mxfenc.c
> index 2cf77df..7a32e0b 100644
> --- a/libavformat/mxfenc.c
> +++ b/libavformat/mxfenc.c
> @@ -1295,7 +1295,7 @@ static const UID mxf_mpeg2_codec_uls[] = {
>  
>  static const UID *mxf_get_mpeg2_codec_ul(AVCodecContext *avctx)
>  {
> -    int long_gop = avctx->gop_size > 1 || avctx->has_b_frames;
> +    int long_gop = 1;
>  
>      if (avctx->profile == 4) { // Main
>          if (avctx->level == 8) // Main

Do you have samples demonstrating this either way?

/Tomas

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