[FFmpeg-devel] [PATCH 1/2] avcodec/adpcm_ima_apm: remove old extradata format

Andreas Rheinhardt andreas.rheinhardt at gmail.com
Mon Feb 22 05:05:52 EET 2021


Zane van Iperen:
> Was added in error very early on, passing in only the required fields.
> Later, the muxer and demuxer were changed to pass the entire APMState
> struct as extradata.
> 
> Technically a breaking change, but this was only around for a *very* short
> time before it was updated,
> 

I am ok with this if it is done at the major bump.

> Signed-off-by: Zane van Iperen <zane at zanevaniperen.com>
> ---
>  libavcodec/adpcm.c | 5 -----
>  1 file changed, 5 deletions(-)
> 
> diff --git a/libavcodec/adpcm.c b/libavcodec/adpcm.c
> index eb228cc47a..e38e81310c 100644
> --- a/libavcodec/adpcm.c
> +++ b/libavcodec/adpcm.c
> @@ -171,11 +171,6 @@ static av_cold int adpcm_decode_init(AVCodecContext * avctx)
>                  c->status[0].step_index = av_clip(AV_RL32(avctx->extradata + 20), 0, 88);
>                  c->status[1].predictor  = av_clip_intp2(AV_RL32(avctx->extradata + 4), 18);
>                  c->status[1].step_index = av_clip(AV_RL32(avctx->extradata + 8), 0, 88);
> -            } else if (avctx->extradata_size >= 16) {
> -                c->status[0].predictor  = av_clip_intp2(AV_RL32(avctx->extradata +  0), 18);
> -                c->status[0].step_index = av_clip(AV_RL32(avctx->extradata +  4), 0, 88);
> -                c->status[1].predictor  = av_clip_intp2(AV_RL32(avctx->extradata +  8), 18);
> -                c->status[1].step_index = av_clip(AV_RL32(avctx->extradata + 12), 0, 88);
>              }
>          }
>          break;
> 



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