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avcodec/decode: Better documentation for ff_set_dimensions()

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Clarify what is checked and that it avoids explicit generic overflow checks

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 9572ab7f45)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2026-04-16 13:57:21 +02:00
parent 0dd168e8fd
commit a1167807fc
1 changed files with 7 additions and 3 deletions
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libavcodec/decode.h
+7 -3
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@@ -93,9 +93,13 @@ int ff_attach_decode_data(AVFrame *frame);
*/
int ff_copy_palette(void *dst, const AVPacket *src, void *logctx);
/**
* Check that the provided frame dimensions are valid and set them on the codec
* context.
/*
* Validate and set video frame dimensions on AVCodecContext.
*
* Dimensions accepted here satisfy FFmpeg's generic image-size validation
* (see av_image_check_size2()). Decoder code normally should not duplicate
* generic width/height overflow checks before ff_get_buffer(); add local
* checks only for codec-specific derived sizes or complexity bounds.
*/
int ff_set_dimensions(AVCodecContext *s, int width, int height);