Fix some ffmpeg 7.x related errors

[xiota]

Fixes #28583
Related #28601

[CLAassistant]

All committers have signed the CLA.

[john-preston]

It looks like it breaks on 6.* then, see the actions.

[xiota]

@john-preston Thanks for letting me know. Force pushed to rebase to 5.7.2 and revert to initial solution. Test built against ffmpeg 6.1.2 and 7.0.2.

[john-preston]

hmm, but the define should somehow flow from ffmpeg version, ideally within this code, so that nothing should be specified outside, like in cmake or elsewhere.

[xiota]

The ffmpeg-related defines were added in #27907. They are already used in multiple files, including the one modified by this PR. I would rather not change them, add duplicate defines, or deviate from precedent.

tdesktop/Telegram/SourceFiles/ffmpeg/ffmpeg_utility.h

Lines 27 to 34 in 1eeb46d

	#define DA_FFMPEG_NEW_CHANNEL_LAYOUT (LIBAVUTIL_VERSION_INT >= \
	AV_VERSION_INT(57, 28, 100))
	#define DA_FFMPEG_CONST_WRITE_CALLBACK (LIBAVFORMAT_VERSION_INT >= \
	AV_VERSION_INT(61, 01, 100))
	#define DA_FFMPEG_HAVE_DURATION (LIBAVUTIL_VERSION_INT >= \
	AV_VERSION_INT(58, 02, 100))

[john-preston]

oh, I see, yeah.. thanks