d770e0f401
The MPEG-TS muxer had a serious bug related to the use of multiple programs: in that case, the PCR pid selection was incomplete for all services except one. This patch solves this problem and selects a stream to become PCR for each service, preferably the video stream. This patch also moves pcr calculation attributes to MpegTSWriteStream from MpegTSService. PCR is a per-stream and not per-service thing, so it was misleading to refer to it as something that is per-service. Also remove *service from MpegTSWriteStream because a stream can belong to multiple services so it was misleading to select one for each stream. You can check the result with this example command: ./ffmpeg -loglevel verbose -y -f lavfi -i \ "testsrc=s=64x64:d=10,split=2[out0][tmp1];[tmp1]vflip[out1];sine=d=10,asetnsamples=1152[out2]" \ -flags +bitexact -fflags +bitexact -sws_flags +accurate_rnd+bitexact \ -codec:v libx264 -codec:a mp2 -pix_fmt yuv420p \ -map '0✌️0' \ -map '0✌️1' \ -map '0🅰️0' \ -program st=0:st=2 -program st=1:st=2 -program st=2 -program st=0 -f mpegts out.ts You should now see this: [mpegts @ 0x37505c0] service 1 using PCR in pid=256 [mpegts @ 0x37505c0] service 2 using PCR in pid=257 [mpegts @ 0x37505c0] service 3 using PCR in pid=258 [mpegts @ 0x37505c0] service 4 using PCR in pid=256 Fixes ticket #8039. v2: a video is stream is preferred if there are no programs, just like before the patch. Signed-off-by: Marton Balint <cus@passwd.hu>
FFmpeg README
FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.
Libraries
libavcodecprovides implementation of a wider range of codecs.libavformatimplements streaming protocols, container formats and basic I/O access.libavutilincludes hashers, decompressors and miscellaneous utility functions.libavfilterprovides a mean to alter decoded Audio and Video through chain of filters.libavdeviceprovides an abstraction to access capture and playback devices.libswresampleimplements audio mixing and resampling routines.libswscaleimplements color conversion and scaling routines.
Tools
- ffmpeg is a command line toolbox to manipulate, convert and stream multimedia content.
- ffplay is a minimalistic multimedia player.
- ffprobe is a simple analysis tool to inspect multimedia content.
- Additional small tools such as
aviocat,ismindexandqt-faststart.
Documentation
The offline documentation is available in the doc/ directory.
The online documentation is available in the main website and in the wiki.
Examples
Coding examples are available in the doc/examples directory.
License
FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.
Contributing
Patches should be submitted to the ffmpeg-devel mailing list using
git format-patch or git send-email. Github pull requests should be
avoided because they are not part of our review process and will be ignored.