dcpomatic/src/lib/ffmpeg.h, branch 2252-multi-stream DCP-o-matic DCP tools https://git.carlh.net/cgit/dcpomatic/atom?h=2252-multi-stream 2025-12-29T16:31:35Z wip: hacks 2025-12-29T16:31:35Z Carl Hetherington cth@carlh.net 2022-10-27T20:22:07Z urn:sha1:6edac68a2309b213ee2c83c3d917d005210d5124 Disable use of stream IDs if there are duplicates, rather than rewriting. 2025-10-15T20:33:26Z Carl Hetherington cth@carlh.net 2025-10-14T15:02:15Z urn:sha1:2d8d05c2e7ad67ebac2ff250670a219a891d09ca It turns out that FFmpeg decoders (e.g. flv, see FFmpeg 25faaa311a74efdfdc4fed56996d7338ed807488) check stream IDs and sometimes create new streams if they see one that they didn't see before. If we change stream IDs we break this. Here we try to use stream indices in cases where the IDs are duplicated. We also account for the case where a new stream appears during examination. This wasn't covered by tests until the FFmpeg commit mentioned above, were the flv decoder creates a new stream during examination of boon_telly.mkv. Setup ffmpeg log callback in dcpomatic_setup() instead of in FFmpeg. 2023-03-03T00:17:41Z Carl Hetherington cth@carlh.net 2023-02-23T22:35:40Z urn:sha1:69957d093fd1cb798449271e6212cd86321d5528 Cleanup: remove unused variable. 2023-03-03T00:17:41Z Carl Hetherington cth@carlh.net 2023-02-23T22:33:58Z urn:sha1:0a4c399e8ed2ebb8b7dadf2684595effd1ca9f3e Use libdcp's warnings.h 2022-04-22T21:27:15Z Carl Hetherington cth@carlh.net 2022-04-22T21:27:15Z urn:sha1:3c29aa6531a4046a8db72dcac81189eb8893233c Use a separate AVFrame for each stream when decoding. 2022-01-11T21:16:04Z Carl Hetherington cth@carlh.net 2022-01-11T15:34:26Z urn:sha1:b703142e8750c509174b4d964009aecf93f3d834 This seems to be what ffplay does and it feels like it makes sense as frames may be built from multiple packets AFAICS. Fix missing subtitles embedded in files decoded by FFmpeg (#2060). 2021-09-12T23:22:00Z Carl Hetherington cth@carlh.net 2021-09-12T20:43:52Z urn:sha1:60450bd93af0b331d7b98c88aa199366305f0721 Since the FFmpeg 4.4 update it seems that AVSubtitle::pts is no longer set (it's AV_NOPTS_VALUE, i think). Instead we apparently need to get the PTS from the packet, which in turn requires the stream's timebase. Switch decoding to ffmpeg send/receive API. 2021-04-30T23:31:57Z Carl Hetherington cth@carlh.net 2021-04-28T22:27:49Z urn:sha1:e29ce33a36c2e20444d57196defc86d5072bce81 Assorted C++11/formatting cleanups. 2021-04-07T20:15:01Z Carl Hetherington cth@carlh.net 2021-04-07T20:15:01Z urn:sha1:7bc2134d658778e04f1756c255e604b4ab5a5831 Remove FFmpeg::_packet. 2021-03-02T14:40:18Z Carl Hetherington cth@carlh.net 2021-03-01T20:06:01Z urn:sha1:2091311fde159ec39126608327eb93b28898bd6c