[FFmpeg-user] Table_Options.h

[Moritz Barsnick]

On Thu, Jul 03, 2014 at 22:18:21 -0400, Marcus Johnson wrote:
> any idea why it says ffmpeg can encode DTS-HD MA?
> 
> there's this line in the file: {"dts_hd_ma", NULL, 0, AV_OPT_TYPE_CONST,
> {.i64 = FF_PROFILE_DTS_HD_MA }, INT_MIN, INT_MAX, A|E, "profile"}
> 
> and A|E means audio and encoding, is there an encoder in there? I mean,
> probably not, but idk what else this could mean...

It probably means exactly that. Have you checked 
# ffmpeg -encoders | grep -i dts
??

I can encode something using these command line arguments. (That input
is just some arbitrary sound generation I had in my shell history.):

barsnick at sunshine:~ > ffmpeg -y -f lavfi -i aevalsrc="sin(420*2*PI*t)|cos(430*2*PI*t):c=FC|BC" -vn -t 3 -c:a dca -strict experimental -profile:a dts_hd_ma ~/tmp/test.vob
ffmpeg version 2.2.git Copyright (c) 2000-2014 the FFmpeg developers
  built on Jun 19 2014 12:27:50 with icc (ICC) 14.0.3 20140422
  configuration: --prefix=/usr/new/tools/video/install/ffmpeg/20140618 --enable-gpl --enable-version3 --enable-nonfree --disable-shared --enable-x11grab --enable-gnutls --enable-libcdio --enable-libfreetype --enable-libx264 --enable-libmp3lame --enable-openal --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libass --enable-libv4l2 --enable-libvidstab --enable-libfdk-aac --cc=icc --cxx=icpc --extra-ldflags='-L/usr/new/tools/video/install/x264/current/lib -L/usr/new/tools/video/install/fdk-aac/current/lib' --extra-cflags='-I/usr/new/tools/video/install/x264/current/include -I/usr/new/tools/video/install/fdk-aac/current/include'
  libavutil      52. 89.100 / 52. 89.100
  libavcodec     55. 67.100 / 55. 67.100
  libavformat    55. 43.100 / 55. 43.100
  libavdevice    55. 13.101 / 55. 13.101
  libavfilter     4.  8.100 /  4.  8.100
  libswscale      2.  6.100 /  2.  6.100
  libswresample   0. 19.100 /  0. 19.100
  libpostproc    52.  3.100 / 52.  3.100
Input #0, lavfi, from 'aevalsrc=sin(420*2*PI*t)|cos(430*2*PI*t):c=FC|BC':
  Duration: N/A, start: 0.000000, bitrate: 5644 kb/s
    Stream #0:0: Audio: pcm_f64le, 44100 Hz, 2 channels (FC+BC), dbl, 5644 kb/s
Output #0, svcd, to '/home/barsnick/tmp/test.vob':
  Metadata:
    encoder         : Lavf55.43.100
    Stream #0:0: Audio: dts (dca), 44100 Hz, quad(side), s32, 1411 kb/s
    Metadata:
      encoder         : Lavc55.67.100 dca
Stream mapping:
  Stream #0:0 -> #0:0 (pcm_f64le (native) -> dts (dca))
Press [q] to stop, [?] for help
size=     530kB time=00:00:03.00 bitrate=1443.9kbits/s
video:0kB audio:518kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.266667%


My mplayer can play that, so the content seems to make some sort of
sense. Whether that's really "DTS HD MA" is up to others to decide.

Moritz