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From: Zhao Zhili <quinkblack-at-foxmail.com@ffmpeg.org>
To: ffmpeg-devel@ffmpeg.org
Cc: Zhao Zhili <zhilizhao@tencent.com>
Subject: [FFmpeg-devel] [PATCH 00/22] Deprecate av_uninit
Date: Fri, 11 Apr 2025 15:55:45 +0800
Message-ID: <tencent_079C0CE00E5AB635FB818234013E7F56A909@qq.com> (raw)

From: Zhao Zhili <zhilizhao@tencent.com>

The macro is meant to suppress false uninitialized warnings. However,
sometimes these 'false uninitialized warnings' are really undefined
behavior, and leading to real issue like crash, e.g., ab792634197e.

For false uninitialized warnings, it can be silenced by initialization,
and compiler can easily optimize away unnecessary initializations.

av_uninit shouldn't be used in any case.

Zhao Zhili (22):
  avfilter/af_aecho: Remove use of av_uninit
  avfilter/af_compand: Remove use of av_uninit
  avfilter/vsrc_mandelbrot: Remove use of av_uninit
  avformat/electronicarts: Remove use of av_uninit
  swscale/yuv2rgb: Remove use of av_uninit
  avcodec/ac3enc: Remove use of av_uninit
  avcodec/bfi: Remove use of av_uninit
  avcodec/dvdsubenc: Remove use of av_uninit
  avcodec/eamad: Remove use of av_uninit
  avcodec/ffv1enc: Remove use of av_uninit
  avcodec/flacdec: Remove use of av_uninit
  avcodec/lpc: Remove use of av_uninit
  avcodec/mpeg4videodec: Remove use av_uninit
  avcodec/qtrleenc: Remove use of av_uninit
  avcodec/ra144enc: Remove use av_uninit
  avcodec/vp8: Remove use of av_uninit
  avcodec/wmavoice: Remove use of av_uninit
  avformat/flvdec: Remove use of av_uninit
  avformat/srtp: Remove use of av_uninit
  avformat/wavdec: Remove use of av_uninit
  avformat/tests/seek: Remove use of av_uninit
  avutil/attributes: Make av_uninit do nothing

 libavcodec/ac3enc.c           |  5 +++--
 libavcodec/ac3enc_template.c  | 16 ++++++++--------
 libavcodec/bfi.c              |  2 +-
 libavcodec/dvdsubenc.c        |  2 +-
 libavcodec/eamad.c            |  2 +-
 libavcodec/ffv1enc.c          |  4 ++--
 libavcodec/ffv1enc_template.c |  4 ++--
 libavcodec/flacdec.c          |  2 +-
 libavcodec/lpc.c              |  2 +-
 libavcodec/mpeg4videodec.c    |  2 +-
 libavcodec/qtrleenc.c         |  2 +-
 libavcodec/ra144enc.c         |  4 ++--
 libavcodec/vp8.c              |  2 +-
 libavcodec/wmavoice.c         |  4 ++--
 libavfilter/af_aecho.c        |  2 +-
 libavfilter/af_compand.c      |  2 +-
 libavfilter/vsrc_mandelbrot.c |  2 +-
 libavformat/electronicarts.c  |  2 +-
 libavformat/flvdec.c          |  4 ++--
 libavformat/srtp.c            |  4 ++--
 libavformat/tests/seek.c      |  2 +-
 libavformat/wavdec.c          |  2 +-
 libavutil/attributes.h        |  9 ++++-----
 libswscale/yuv2rgb.c          |  2 +-
 24 files changed, 42 insertions(+), 42 deletions(-)

-- 
2.46.0

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             reply	other threads:[~2025-04-11  7:56 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-11  7:55 Zhao Zhili [this message]
2025-04-11  8:36 ` Nicolas George
2025-04-11  9:00   ` Zhao Zhili
2025-04-11  9:32     ` Nicolas George
2025-04-11  9:36       ` Zhao Zhili
2025-04-11  9:52         ` Nicolas George
2025-04-11  9:19   ` Zhao Zhili
2025-04-11 11:01     ` Andreas Rheinhardt

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