[FFmpeg-devel] [PATCH] avcodec/adpcm: pick correct step_index for IMA AMV
James Almer
jamrial at gmail.com
Thu May 19 16:49:01 CEST 2016
On 5/19/2016 11:43 AM, Paul B Mahol wrote:
> Hi,
>
> patch attached.
>
>
> 0001-avcodec-adpcm-pick-correct-step_index-for-IMA-AMV.patch
>
>
> From 78dc1f23509f59e64adbc0a4ecf2e6b77581e375 Mon Sep 17 00:00:00 2001
> From: Paul B Mahol <onemda at gmail.com>
> Date: Thu, 19 May 2016 16:40:07 +0200
> Subject: [PATCH] avcodec/adpcm: pick correct step_index for IMA AMV
>
> Fixes #5538
>
> Signed-off-by: Paul B Mahol <onemda at gmail.com>
> ---
> libavcodec/adpcm.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/libavcodec/adpcm.c b/libavcodec/adpcm.c
> index 0b6b92e..ac74318 100644
> --- a/libavcodec/adpcm.c
> +++ b/libavcodec/adpcm.c
> @@ -1310,8 +1310,8 @@ static int adpcm_decode_frame(AVCodecContext *avctx, void *data,
> break;
> case AV_CODEC_ID_ADPCM_IMA_AMV:
> c->status[0].predictor = sign_extend(bytestream2_get_le16u(&gb), 16);
> - c->status[0].step_index = bytestream2_get_le16u(&gb);
> - bytestream2_skipu(&gb, 4);
> + c->status[0].step_index = bytestream2_get_byteu(&gb);
> + bytestream2_skipu(&gb, 5);
> if (c->status[0].step_index > 88u) {
> av_log(avctx, AV_LOG_ERROR, "ERROR: step_index = %i\n",
> c->status[0].step_index);
No fate change? Coverage shows this code is tested.
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