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From: Zhao Zhili <quinkblack-at-foxmail.com@ffmpeg.org>
To: ffmpeg-devel@ffmpeg.org
Date: Tue, 1 Apr 2025 18:11:58 +0800
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Subject: [FFmpeg-devel] [PATCH] avcodec/mediacodecdec: Reset optional fields
when parse format
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From: Zhao Zhili <zhilizhao@tencent.com>
Parse format can be called multiple times, e.g., when resolution
changed. If getInt32 fails, optional member variables will retain
their previously set values without modification. This can be a
big problem for new resolution with old crop info.
This patch reset optional fields to zero when getInt32 failed.
---
libavcodec/mediacodecdec_common.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libavcodec/mediacodecdec_common.c b/libavcodec/mediacodecdec_common.c
index 8a270f2f29..ae336ab835 100644
--- a/libavcodec/mediacodecdec_common.c
+++ b/libavcodec/mediacodecdec_common.c
@@ -537,6 +537,8 @@ static int mediacodec_wrap_sw_buffer(AVCodecContext *avctx,
av_log(avctx, AV_LOG_ERROR, "Could not get %s from format %s\n", key, format); \
ret = AVERROR_EXTERNAL; \
goto fail; \
+ } else { \
+ (name) = 0; \
} \
} while (0) \
--
2.46.0
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