[FFmpeg-devel] [PATCH] avcodec/dolby_e: set constant frame_size

[Nicolas Gaullier]

>De : Nicolas Gaullier <nicolas.gaullier at cji.paris> 
>Envoyé : mardi 15 décembre 2020 18:13
>À : ffmpeg-devel at ffmpeg.org
>Cc : Nicolas Gaullier <nicolas.gaullier at cji.paris>
>Objet : [PATCH] avcodec/dolby_e: set constant frame_size
>
>Fixes pts generation.
>
>Setting frame_size in dolby_e_init() or get_audio_frame_duration() can result in a bad duration value for the first packet if dolby_e is muxed in a container having a different sample_rate (ex:
>container @48KHz, DolbyE @44.8KHz).
>Maybe adding a parser to dolby_e would fix the issue and makes it possible to set frame_size at decoder init which seems the best place.
>---
> libavcodec/dolby_e.c | 1 +
> 1 file changed, 1 insertion(+)
>
>diff --git a/libavcodec/dolby_e.c b/libavcodec/dolby_e.c index 429612ec08..b0e6d6aee3 100644
>--- a/libavcodec/dolby_e.c
>+++ b/libavcodec/dolby_e.c
>@@ -577,6 +577,7 @@ static int filter_frame(DBEContext *s, AVFrame *frame)
>         reorder = ch_reorder_n;
> 
>     frame->nb_samples = FRAME_SAMPLES;
>+    s->avctx->frame_size = FRAME_SAMPLES;
>     if ((ret = ff_get_buffer(s->avctx, frame, 0)) < 0)
>         return ret;
> 
>--
>2.27.0.windows.1

Hello,
Just a ping for this little patch
Thx
Nicolas