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| author | Michael Niedermayer <michael@niedermayer.cc> | 2024-08-17 01:11:50 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2024-08-18 23:04:28 +0200 |
| commit | 8657eb9c3f4a498389cb8725760d1793c08c57fc (patch) | |
| tree | b4384fcfe3e1cc7cff33a962a6a8acaacfbd05fe | |
| parent | 4230379835780c855818d7141082d9558e3842dc (diff) | |
| download | ffmpeg-8657eb9c3f4a498389cb8725760d1793c08c57fc.tar.gz | |
avcodec/avcodec: Warn about data returned from get_buffer*()
Text based on suggestion by: epirat07@gmail.com
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | doc/APIchanges | 6 | ||||
| -rw-r--r-- | libavcodec/avcodec.h | 4 |
2 files changed, 10 insertions, 0 deletions
diff --git a/doc/APIchanges b/doc/APIchanges index 173f317ea1..b81f1ae656 100644 --- a/doc/APIchanges +++ b/doc/APIchanges @@ -2,6 +2,12 @@ The last version increases of all libraries were on 2024-03-07 API changes, most recent first: +2024-08-xx - xxxxxxxxx - lavc 61.11.100- avcodec.h + Clarify the documentation for get_buffer*() functions, making it + clear that the memory returned by them should not contain sensitive + information. This is not a change in the API, it is how it already worked + before. + 2024-08-10 - xxxxxxxxx - lavu 59.34.100 - hwcontext_vulkan.h Add qf and nb_qf to AVVulkanDeviceContext. Deprecate queue_family_index, nb_graphics_queues, diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h index 2da63c87ea..7a67300134 100644 --- a/libavcodec/avcodec.h +++ b/libavcodec/avcodec.h @@ -1175,6 +1175,10 @@ typedef struct AVCodecContext { * this callback and filled with the extra buffers if there are more * buffers than buf[] can hold. extended_buf will be freed in * av_frame_unref(). + * Decoders will generally initialize the whole buffer before it is output + * but it can in rare error conditions happen that uninitialized data is passed + * through. \important The buffers returned by get_buffer* should thus not contain sensitive + * data. * * If AV_CODEC_CAP_DR1 is not set then get_buffer2() must call * avcodec_default_get_buffer2() instead of providing buffers allocated by |