#4525(avformat:new): Add multi-program support in mpegts muxer
#4525: Add multi-program support in mpegts muxer -------------------------------------+------------------------------------- Reporter: saste | Owner: Type: | Status: new enhancement | Component: avformat Priority: normal | Keywords: mpegts Version: git- | program master | Blocking: Blocked By: | Analyzed by developer: 0 Reproduced by developer: 0 | -------------------------------------+------------------------------------- Multi-programs MPEGTS input are correctly handled, and there is an API to set the Program structure. For example consider this output: {{{ $ ffprobe multi-programs.ts ffprobe version N-71578-g57865a9 Copyright (c) 2007-2015 the FFmpeg developers built with gcc 4.8 (Ubuntu/Linaro 4.8.1-10ubuntu9) configuration: --extra-cflags=-I/home/stefano/include --extra- ldflags=-L/home/stefano/lib --enable-libopenjpeg --enable-pic --enable- fontconfig --enable-libass --enable-version3 --prefix=/home/stefano --disable-shared --enable-static --enable-debug=3 --enable-pthreads --disable-optimizations --enable-libvorbis --enable-gpl --enable-nonfree --enable-libmp3lame --enable-libtheora --enable-gpl --enable-x11grab --enable-frei0r --enable-libfaac --enable-libcaca --enable-libflite --enable-libzmq --enable-libfreetype --enable-libopencv --enable-libgme --enable-libcdio --enable-libvo-aacenc --enable-libx264 --enable-ladspa --enable-libquvi --enable-opengl --enable-libvpx --enable-libxcb libavutil 54. 23.100 / 54. 23.100 libavcodec 56. 35.101 / 56. 35.101 libavformat 56. 30.100 / 56. 30.100 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 14.100 / 5. 14.100 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 3.100 / 53. 3.100 Input #0, mpegts, from 'multi-programs.ts': Duration: 00:05:00.03, start: 0.000278, bitrate: 1216 kb/s Program 1 Stream #0:0[0x65]: Video: h264 (Constrained Baseline) ([27][0][0][0] / 0x001B), yuv420p, 320x240 [SAR 4:3 DAR 16:9], 10 fps, 10 tbr, 90k tbn, 20 tbc Program 2 Stream #0:1[0x6f]: Video: h264 (Constrained Baseline) ([27][0][0][0] / 0x001B), yuv420p, 320x240 [SAR 4:3 DAR 16:9], 30 fps, 30 tbr, 90k tbn, 60 tbc Program 3 Stream #0:2[0x79]: Video: h264 (Constrained Baseline) ([27][0][0][0] / 0x001B), yuv420p, 320x240 [SAR 1:1 DAR 4:3], 30 fps, 29.92 tbr, 90k tbn, 60 tbc }}} But programs are not handled in the mpegts muxer at the present time, so even when using the API the corresponding program structure is not stored in the MPEGTS output. With {{{ffmpeg}}} we get this behavior: {{{ $ ffmpeg -i multi-programs.ts -codec copy -map 0 multi-programs.out.ts ffmpeg version N-71578-g57865a9 Copyright (c) 2000-2015 the FFmpeg developers built with gcc 4.8 (Ubuntu/Linaro 4.8.1-10ubuntu9) configuration: --extra-cflags=-I/home/stefano/include --extra- ldflags=-L/home/stefano/lib --enable-libopenjpeg --enable-pic --enable- fontconfig --enable-libass --enable-version3 --prefix=/home/stefano --disable-shared --enable-static --enable-debug=3 --enable-pthreads --disable-optimizations --enable-libvorbis --enable-gpl --enable-nonfree --enable-libmp3lame --enable-libtheora --enable-gpl --enable-x11grab --enable-frei0r --enable-libfaac --enable-libcaca --enable-libflite --enable-libzmq --enable-libfreetype --enable-libopencv --enable-libgme --enable-libcdio --enable-libvo-aacenc --enable-libx264 --enable-ladspa --enable-libquvi --enable-opengl --enable-libvpx --enable-libxcb libavutil 54. 23.100 / 54. 23.100 libavcodec 56. 35.101 / 56. 35.101 libavformat 56. 30.100 / 56. 30.100 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 14.100 / 5. 14.100 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 3.100 / 53. 3.100 Input #0, mpegts, from 'multi-programs.ts': Duration: 00:05:00.03, start: 0.000278, bitrate: 1216 kb/s Program 1 Stream #0:0[0x65]: Video: h264 (Constrained Baseline) ([27][0][0][0] / 0x001B), yuv420p, 320x240 [SAR 4:3 DAR 16:9], 10 fps, 10 tbr, 90k tbn, 20 tbc Program 2 Stream #0:1[0x6f]: Video: h264 (Constrained Baseline) ([27][0][0][0] / 0x001B), yuv420p, 320x240 [SAR 4:3 DAR 16:9], 30 fps, 30 tbr, 90k tbn, 60 tbc Program 3 Stream #0:2[0x79]: Video: h264 (Constrained Baseline) ([27][0][0][0] / 0x001B), yuv420p, 320x240 [SAR 1:1 DAR 4:3], 30 fps, 29.92 tbr, 90k tbn, 60 tbc Output #0, mpegts, to 'multi-programs.out.ts': Metadata: encoder : Lavf56.30.100 Stream #0:0: Video: h264 ([27][0][0][0] / 0x001B), yuv420p, 320x240 [SAR 4:3 DAR 16:9], q=2-31, 10 fps, 10 tbr, 90k tbn, 10 tbc Stream #0:1: Video: h264 ([27][0][0][0] / 0x001B), yuv420p, 320x240 [SAR 4:3 DAR 16:9], q=2-31, 30 fps, 30 tbr, 90k tbn, 30 tbc Stream #0:2: Video: h264 ([27][0][0][0] / 0x001B), yuv420p, 320x240 [SAR 1:1 DAR 4:3], q=2-31, 30 fps, 29.92 tbr, 90k tbn, 30 tbc Stream mapping: Stream #0:0 -> #0:0 (copy) Stream #0:1 -> #0:1 (copy) Stream #0:2 -> #0:2 (copy) Press [q] to stop, [?] for help frame= 2988 fps=0.0 q=-1.0 Lq=-1.0 q=-1.0 size= 47966kB time=00:05:00.02 bitrate=1309.7kbits/s video:42075kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 14.001903% $ ffprobe multi-programs.out.ts ffprobe version N-71578-g57865a9 Copyright (c) 2007-2015 the FFmpeg developers built with gcc 4.8 (Ubuntu/Linaro 4.8.1-10ubuntu9) configuration: --extra-cflags=-I/home/stefano/include --extra- ldflags=-L/home/stefano/lib --enable-libopenjpeg --enable-pic --enable- fontconfig --enable-libass --enable-version3 --prefix=/home/stefano --disable-shared --enable-static --enable-debug=3 --enable-pthreads --disable-optimizations --enable-libvorbis --enable-gpl --enable-nonfree --enable-libmp3lame --enable-libtheora --enable-gpl --enable-x11grab --enable-frei0r --enable-libfaac --enable-libcaca --enable-libflite --enable-libzmq --enable-libfreetype --enable-libopencv --enable-libgme --enable-libcdio --enable-libvo-aacenc --enable-libx264 --enable-ladspa --enable-libquvi --enable-opengl --enable-libvpx --enable-libxcb libavutil 54. 23.100 / 54. 23.100 libavcodec 56. 35.101 / 56. 35.101 libavformat 56. 30.100 / 56. 30.100 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 14.100 / 5. 14.100 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 3.100 / 53. 3.100 Input #0, mpegts, from 'multi-programs.out.ts': Duration: 00:05:00.03, start: 1.400000, bitrate: 1309 kb/s Program 1 Metadata: service_name : Service01 service_provider: FFmpeg Stream #0:0[0x100]: Video: h264 (Constrained Baseline) ([27][0][0][0] / 0x001B), yuv420p, 320x240 [SAR 4:3 DAR 16:9], 10 fps, 10 tbr, 90k tbn, 20 tbc Stream #0:1[0x101]: Video: h264 (Constrained Baseline) ([27][0][0][0] / 0x001B), yuv420p, 320x240 [SAR 4:3 DAR 16:9], 30 fps, 30 tbr, 90k tbn, 60 tbc Stream #0:2[0x102]: Video: h264 (Constrained Baseline) ([27][0][0][0] / 0x001B), yuv420p, 320x240 [SAR 1:1 DAR 4:3], 30 fps, 29.92 tbr, 90k tbn, 60 tbc }}} that is only a single program containing all the streams is written to the output. -- Ticket URL: <https://trac.ffmpeg.org/ticket/4525> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker
#4525: Add multi-program support in mpegts muxer -------------------------------------+------------------------------------ Reporter: saste | Owner: Type: enhancement | Status: new Priority: wish | Component: avformat Version: git-master | Resolution: Keywords: mpegts | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------ Changes (by cehoyos): * keywords: mpegts program => mpegts * priority: normal => wish Comment: Was this fixed in 8b02af1e6fbb0d782f3561afd82f66edc7fa8ae0? -- Ticket URL: <https://trac.ffmpeg.org/ticket/4525#comment:1> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker
#4525: Multi-program structure of input is not preserved in MPEG-TS output -------------------------------------+------------------------------------ Reporter: saste | Owner: Type: enhancement | Status: new Priority: wish | Component: avformat Version: git-master | Resolution: Keywords: mpegts | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------ Comment (by droid-xx): @saste I hope you don't mind me changing the title so as to make this bug report more clear. The mentioned commit doesn't fix this particular case. This ticket refers to the original program structure of the input being completely lost upon transfer, i.e. all programs in a MPTS input are merged under a single program containing all streams from all input programs, effectively making an SPTS output. The same issue is described in #4734. Example, a multi-program TS like this: {{{ MyProgram - Stream 1 - Stream 2 - Stream 3 OtherProgram - Stream 4 - Stream 5 - Stream 6 - Stream 7 YetAnotherProgram - Stream 8 - Stream 9 }}} ...will result in a single-program TS like this: {{{ Service01 - Stream 1 - Stream 2 - Stream 3 - Stream 4 - Stream 5 - Stream 6 - Stream 7 - Stream 8 - Stream 9 }}} Now if one also adds the {{{-map_metadata 0:p}}} option, the only difference in the resulting output will be the following: {{{ MyProgram - Stream 1 - Stream 2 - Stream 3 - Stream 4 - Stream 5 - Stream 6 - Stream 7 - Stream 8 - Stream 9 }}} Which means that only the information of the first service is preserved, under which all other services are merged. All the remaining services are removed from the resulting SDT. Unfortunately this is one of the many problems of the mpegts muxer regarding the loss of all kinds of information in the output. Other problem is the loss of almost all tables as per #9114, another is the loss of several other descriptors upon copying, e.g. all audio-related descriptors are dropped, etc. -- Ticket URL: <https://trac.ffmpeg.org/ticket/4525#comment:2> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker
#4525: Multi-program structure of input is not preserved in MPEG-TS output -------------------------------------+---------------------------------- Reporter: saste | Owner: Type: enhancement | Status: new Priority: wish | Component: ffmpeg Version: git-master | Resolution: Keywords: mpegts | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+---------------------------------- Changes (by cehoyos): * component: avformat => ffmpeg -- Ticket URL: <https://trac.ffmpeg.org/ticket/4525#comment:3> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker
#4525: Multi-program structure of input is not preserved in MPEG-TS output -------------------------------------+------------------------------------- Reporter: Stefano | Owner: (none) Sabatini | Type: enhancement | Status: new Priority: wish | Component: ffmpeg Version: git-master | Resolution: Keywords: mpegts | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Comment (by Mike G): I wish ffmpeg had a true "copy" handling for MPTS. Many times I just want to remux MPTS into a different protocol while keeping all the descriptors the same. You can get close by manually mapping, like {{{ ffmpeg -i INPUT -codec copy -flush_packets 0 -map p:3 -map p:4 -map p:5 -map p:6 -program title=Prog3:st=0:st=1:st=2 -program title=Prog4:st=6:st=3 -program title=Prog5:st=8:st=4 -program title=Prog6:st=7:st=5 -f mpegts OUTPUT }}} There is an issue with for live streams (like UDP/RTP) since FFmpeg may change the stream index (st) on subsequent probes, so you can't predict st=NN arg for bulky MPTS. If -program could take a PID argument, it would be worth a bounty. A typical use case could be taking a broadcast TS and send out HLS, but while keeping everything about the source intact. I haven't found a tool that can do this, so I had to write my own. I don't have to even bother with any TS data except for finding I-frames for segmenting, everything else is just copy as is. -- Ticket URL: <https://trac.ffmpeg.org/ticket/4525#comment:4> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker
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