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member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Content-Filtered-By: Mailman/MimeDel 3.3.10 X-Mailman-Version: 3.3.10 Precedence: list Reply-To: FFmpeg development discussions and patches Subject: [FFmpeg-devel] [PATCH] avcodec/adpcm: Fix the decoding error caused by incorrect retrieval of step_index in ADPCM module List-Id: FFmpeg development discussions and patches Archived-At: Archived-At: List-Archive: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: From: =?utf-8?b?5ZSQ6I6OIHZpYSBmZm1wZWctZGV2ZWw=?= Cc: =?UTF-8?B?5ZSQ6I6O?= Content-Type: multipart/mixed; boundary="===============4374693534672827001==" Archived-At: List-Archive: List-Post: This message is in MIME format. --===============4374693534672827001== Content-Transfer-Encoding: 7bit Content-Type: application/octet-stream; name="=?UTF-8?B?MDAwMS1hdmNvZGVjLWFkcGNtLUZpeC10aGUtZGVjb2RpbmctZXJyb3ItY2F1c2VkLWJ5LWluY29yLnBhdGNo?=" Content-Disposition: attachment; size=1078; seclevel=1"; uploadtime=1764554249; cid=; filename="=?UTF-8?B?MDAwMS1hdmNvZGVjLWFkcGNtLUZpeC10aGUtZGVjb2RpbmctZXJyb3ItY2F1c2VkLWJ5LWluY29yLnBhdGNo?= >>From 3a21c9f12121f3e8bcaa704422750a8f45c7e50e Mon Sep 17 00:00:00 2001 From: tangsha Date: Thu, 28 Aug 2025 17:45:19 +0800 Subject: [PATCH] avcodec/adpcm: Fix the decoding error caused by incorrect retrieval of step_index in ADPCM module --- libavcodec/adpcm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/libavcodec/adpcm.c b/libavcodec/adpcm.c index 4c15be6207..d01d6cd8e4 100644 --- a/libavcodec/adpcm.c +++ b/libavcodec/adpcm.c @@ -1345,7 +1345,8 @@ static int adpcm_decode_frame(AVCodecContext *avctx, AVFrame *frame, ADPCMChannelStatus *cs = &c->status[i]; cs->predictor = samples_p[i][0] = sign_extend(bytestream2_get_le16u(&gb), 16); - cs->step_index = sign_extend(bytestream2_get_le16u(&gb), 16); + cs->step_index = bytestream2_get_byteu(&gb); + bytestream2_skip(&gb, sizeof(uint8_t)); if (cs->step_index > 88u){ av_log(avctx, AV_LOG_ERROR, "ERROR: step_index[%d] = %i\n", i, cs->step_index); -- 2.25.1 --===============4374693534672827001== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ ffmpeg-devel mailing list -- ffmpeg-devel@ffmpeg.org To unsubscribe send an email to ffmpeg-devel-leave@ffmpeg.org --===============4374693534672827001==--