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avcodec/mjpegenc: Reconstify mjpeg encoder

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It has been deconstified in 2c2dfd9149
because the FFCodec is touched in av_codec_init_static because
of its get_supported_config callback. Yet this is easily remedied:
Only call get_supported_config to set pix_fmts if the codec does
not already have it set.

This also fixes a mismatch between the declaration of ff_mjpeg_encoder
in allcodecs.c and the definition in mjpegenc.c. Said mismatch is
actually undefined behaviour.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt
2025-03-10 04:02:06 +01:00
parent ed1b76cdb7
commit 958c46800e
2 changed files with 6 additions and 5 deletions
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9
libavcodec/allcodecs.c
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@@ -937,10 +937,11 @@ static void av_codec_init_static(void)
FF_DISABLE_DEPRECATION_WARNINGS
switch (codec->p.type) {
case AVMEDIA_TYPE_VIDEO:
codec->get_supported_config(NULL, &codec->p,
AV_CODEC_CONFIG_PIX_FORMAT, 0,
(const void **) &codec->p.pix_fmts,
&dummy);
if (!codec->p.pix_fmts)
codec->get_supported_config(NULL, &codec->p,
AV_CODEC_CONFIG_PIX_FORMAT, 0,
(const void **) &codec->p.pix_fmts,
&dummy);
break;
case AVMEDIA_TYPE_AUDIO:
codec->get_supported_config(NULL, &codec->p,