Selecting a stream from a multi-service mpegts

[burek]

Hi, it would be nice to have an option to select (extract) only a specific service from within an mpegts multi programs stream. I'm not sure if I named each thing correctly, but here is an example:

mpegts @ 0x1ffd3a0] Estimating duration from bitrate, this may be inaccurate
Input #0, mpegts, from 'udp://@:5000':
  Duration: N/A, start: 34272.976700, bitrate: 41672 kb/s
  Program 52
    Metadata:
      service_name    : PenthouseTV
      service_provider:
    Stream #0:22[0x710], 0, 1/90000: Video: mpeg2video ([2][0][0][0] / 0x0002), 90k tbr, 90k tbn
    Stream #0:23[0x711], 0, 1/90000: Audio: mp3 ([3][0][0][0] / 0x0003), 0 channels, s16
  Program 53
    Metadata:
      service_name    : Juicy
      service_provider:
    Stream #0:8[0x720], 0, 1/90000: Video: mpeg2video ([2][0][0][0] / 0x0002), 90k tbr, 90k tbn
    Stream #0:9[0x721], 0, 1/90000: Audio: mp3 ([3][0][0][0] / 0x0003), 0 channels, s16
  Program 54
    Metadata:
      service_name    : BN BOSNIA
      service_provider:
    Stream #0:10[0x420], 0, 1/90000: Video: mpeg2video ([2][0][0][0] / 0x0002), 90k tbr, 90k tbn
    Stream #0:11[0x421], 0, 1/90000: Audio: mp3 ([3][0][0][0] / 0x0003), 0 channels, s16
  Program 55
    Metadata:
      service_name    : BN Music
      service_provider:
    Stream #0:12[0xfba], 0, 1/90000: Video: mpeg2video ([2][0][0][0] / 0x0002), 90k tbr, 90k tbn
    Stream #0:13[0xfcc], 0, 1/90000: Audio: mp3 ([3][0][0][0] / 0x0003), 0 channels, s16
  Program 56
    Metadata:
      service_name    : Al Maghribiya
      service_provider:
    Stream #0:0[0xfb7], 66, 1/90000: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p, 480x480 [SAR 4:3 DAR 4:3], 1001/60000, 15000 kb/s, 31.44 fps, 29.97 tbr, 90k tbn, 59.94 tbc
    Stream #0:1[0xfc1], 90, 1/90000: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16, 128 kb/s
  Program 59
    Metadata:
      service_name    : TVK
      service_provider:
    Stream #0:14[0x12c], 0, 1/90000: Video: mpeg2video ([2][0][0][0] / 0x0002), 90k tbr, 90k tbn
    Stream #0:15[0x12d], 0, 1/90000: Audio: mp3 ([3][0][0][0] / 0x0003), 0 channels, s16
  Program 60
    Metadata:
      service_name    : Telesur
      service_provider:
    Stream #0:2[0x13c], 68, 1/90000: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p, 704x480 [SAR 10:11 DAR 4:3], 1001/60000, 2750 kb/s, 33.53 fps, 29.97 tbr, 90k tbn, 59.94 tbc
    Stream #0:25[0x13d], 90, 1/90000: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16, 112 kb/s
  Program 62
    Metadata:
      service_name    : Canal Algerie
      service_provider:
    Stream #0:16[0x4c4], 90, 1/90000: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16, 128 kb/s
    Stream #0:17[0x4ec], 67, 1/90000: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p, 544x480 [SAR 20:17 DAR 4:3], 1001/60000, 3150 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
  Program 64
    Metadata:
      service_name    : Al Maaref
      service_provider:
    Stream #0:3[0x12a], 67, 1/90000: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p, 544x480 [SAR 20:17 DAR 4:3], 1001/60000, 1790 kb/s, 34.79 fps, 29.97 tbr, 90k tbn, 59.94 tbc
    Stream #0:4[0x12b], 90, 1/90000: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16, 112 kb/s
  Program 65
    Metadata:
      service_name    : Syrian Drama
      service_provider:
    Stream #0:18[0x450], 67, 1/90000: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p, 704x480 [SAR 10:11 DAR 4:3], 1001/60000, 2750 kb/s, 31.42 fps, 29.97 tbr, 90k tbn, 59.94 tbc
    Stream #0:19[0x451], 90, 1/90000: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, mono, s16, 112 kb/s
  Program 72
    Metadata:
      service_name    : Chaine 1
      service_provider:
    Stream #0:20[0x5fd], 95, 1/90000: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16, 256 kb/s
  Program 73
    Metadata:
      service_name    : Radio Internationale
      service_provider:
    Stream #0:24[0x5fe], 95, 1/90000: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16, 256 kb/s
  Program 74
    Metadata:
      service_name    : BN Bosnia Radio
      service_provider:
    Stream #0:21[0x422], 0, 1/90000: Audio: mp3 ([3][0][0][0] / 0x0003), 0 channels, s16
  Program 167
    Metadata:
      service_name    : CNC World English
      service_provider:
    Stream #0:6[0x10f5], 64, 1/90000: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p, 704x480 [SAR 10:11 DAR 4:3], 1001/60000, 15000 kb/s, 35.06 fps, 29.97 tbr, 90k tbn, 59.94 tbc
    Stream #0:7[0x10f6], 90, 1/90000: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16, 128 kb/s
  Program 458
    Metadata:
      service_name    : Radio BIR
      service_provider:
    Stream #0:5[0x212], 0, 1/90000: Audio: mp3 ([3][0][0][0] / 0x0003), 0 channels, s16
  Program 460
    Metadata:
      service_name    : Radio Glas Drine
      service_provider:
    Stream #0:26[0x452], 0, 1/90000: Audio: mp3 ([3][0][0][0] / 0x0003), 0 channels, s16
[libx264 @ 0x21a8ac0] using mv_range_thread = 24
[libx264 @ 0x21a8ac0] using cpu capabilities: MMX2 SSE2Fast FastShuffle SSEMisalign LZCNT
[libx264 @ 0x21a8ac0] profile High, level 3.0
[libx264 @ 0x21a8ac0] 264 - core 120 r2164 da19765 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=9 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
[mpeg2video @ 0x2038120] detected 6 logical cores
Output #0, flv, to '/mnt/encoder/test.avi':
  Metadata:
    encoder         : Lavf54.0.100
    Stream #0:0, 0, 1/1000: Audio: mp3 ([2][0][0][0] / 0x0002), 44100 Hz, 0 channels, s16, 128 kb/s
    Stream #0:1, 0, 1/1000: Video: h264 ([7][0][0][0] / 0x0007), yuv420p, 704x480, 1001/30000, q=-1--1, 1k tbn, 29.97 tbc
Stream mapping:
  Stream #0:5 -> #0:0 (mp3 -> libmp3lame)
  Stream #0:6 -> #0:1 (mpeg2video -> libx264)

So, if one wants to extract the "service_name : CNC World English", both audio/video, then the command would look something like:

ffmpeg -f mpegts -i udp://@:5000 -mpegts_select_service_name "CNC World English" -vcodec copy -acodec copy ...

[Carl Eugen Hoyos]

Is this problem only reproducible via network or also if you read a file?

[burek]

Did you even read the text above your comment? :)

[reimar]

There is nothing in your text that would explain why you used udp:// in your example, so the question whether this is only relevant to udp streams or not is justified.
Answer: no, any TS stream with program ids should work the same, and e.g. the sample from ticket 531 works fine.
However you should provide a smaller sample for people to test.
Also, this should not be some TS specific option, it should work for all containers where FFmpeg supports a concept of a "program" (I think it does for Matroska at least), and maybe an option to select it by number should be implemented first.

[Michael Niedermayer]

-map 0:p:1318 will for example pick the program, 1318

[Michael Niedermayer]

PS: note, iam not sure this was actually implemented after the ticket was opened or if this was already supported before

[Roger Pack]

Is there any ability to select by name? For instance "service_name : Canal Algerie" might be nice, though mapping to pid is quite possible

[Roger Pack]

To answer my own question, appears not, however by using the "program id" or "PID" you can stll pretty well specify what you want, more here: ​https://trac.ffmpeg.org/wiki/Map