[FFmpeg-user] pcm_s16le (and flac) in TS fails

Etienne Buira etienne.buira.lists at free.fr
Fri Mar 23 18:57:18 CET 2012


Hi all.

Tried on many kind of input files with HEAD (and earliers):

1. ffmpeg -i source.something -ss 120 -t 120 -c:a pcm_s16le -c:v libx264 -preset ultrafast -qp 0 pcm_s16le.ts
2. ffmpeg -i pcm_s16le.ts
ffmpeg version N-39180-g4c38e8a Copyright (c) 2000-2012 the FFmpeg developers
  built on Mar 23 2012 18:16:41 with gcc 4.5.3
  configuration: --enable-gpl --enable-version3 --enable-postproc --enable-avfilter --disable-stripping --enable-nonfree --enable-libfaac --enable-libmp3lame --enable-libx264
  libavutil      51. 44.100 / 51. 44.100
  libavcodec     54. 12.100 / 54. 12.100
  libavformat    54.  2.100 / 54.  2.100
  libavdevice    53.  4.100 / 53.  4.100
  libavfilter     2. 65.102 /  2. 65.102
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0.  7.100 /  0.  7.100
  libpostproc    52.  0.100 / 52.  0.100
[mpegts @ 0x32f33a0] probed stream 1 failed
[mpegts @ 0x32f33a0] Could not find codec parameters (Unknown: none ([6][0][0][0] / 0x0006))
Input #0, mpegts, from 'pcm_s16le.ts':
  Duration: 00:01:59.99, start: 1.400000, bitrate: 29007 kb/s
  Program 1 
    Metadata:
      service_name    : Service01
      service_provider: FFmpeg
    Stream #0:0[0x100]: Video: h264 (High 4:4:4 Predictive) ([27][0][0][0] / 0x001B), yuv420p, 704x528 [SAR 4:3 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
    Stream #0:1[0x101](fra): Unknown: none ([6][0][0][0] / 0x0006)
At least one output file must be specified

Did I do something wrong in my command line?

I also tried flac, but similar issue.

For the global picture, I want to do some processing on some streams,
being as lossless as possible, and then concat them to encode in wished
final quality. Somebody have a better idea for lossless step encodes?

Regards



More information about the ffmpeg-user mailing list