[FFmpeg-user] backtrack parameters from existing file

[Scott Goldman]

   ----- Original Message -----From: "Carl Eugen Hoyos" <cehoyos at ag.or.at>
Sent: Wed, January 9, 2013 4:06Subject: Re: [FFmpeg-user] backtrack
parameters from existing file
Scott Goldman <scottg <at> emailhosting.com> writes:

> FFmpeg version 0.6.5, Copyright (c) 2000-2010

>0.6 is a particularly bad choice, please test current
>git head.
>Allow me to add that major changes were made to the
>mxf code, I would expect this bug was fixed since.

>Carl Eugen


MUCH BETTER! We download ffpmeg and the 1.1 version correctly reads the
Quantel 3.6 files (thanks!).. the only issue now is a "scary" message (3rd
line from the bottom)
    SportsCenter_CGI_Elements.mxf: Operation not permitted01.66
bitrate=1542.2kbits/s

it does encode the mp4, but i'm also not sure about the audio.. we seem to
be picking up an extra data stream (is that possibly related)?


ffmpeg version 1.1 Copyright (c) 2000-2013 the FFmpeg developers
  built on Jan  9 2013 09:41:25 with gcc 4.1.2 (GCC) 20080704 (Red Hat
4.1.2-46)
  configuration: --disable-yasm
  libavutil      52. 13.100 / 52. 13.100
  libavcodec     54. 86.100 / 54. 86.100
  libavformat    54. 59.106 / 54. 59.106
  libavdevice    54.  3.102 / 54.  3.102
  libavfilter     3. 32.100 /  3. 32.100
  libswscale      2.  1.103 /  2.  1.103
  libswresample   0. 17.102 /  0. 17.102
[mxf @ 0x13de3ec0] source track 7: stream 5, no descriptor found
[mxf @ 0x13de3ec0] Stream #5: not enough frames to estimate rate; consider
increasing probesize
Guessed Channel Layout for  Input Stream #0.1 : mono
Guessed Channel Layout for  Input Stream #0.2 : mono
Guessed Channel Layout for  Input Stream #0.3 : mono
Guessed Channel Layout for  Input Stream #0.4 : mono
Input #0, mxf, from 'SportsCenter_CGI_Elements.mxf':
  Metadata:
    timecode        : 00:00:00:00
  Duration: 00:00:31.10, start: 0.000000, bitrate: 119571 kb/s
    Stream #0:0: Video: dvvideo, yuv422p, 960x720 [SAR 4:3 DAR 16:9],
59.94 fps, 59.94 tbr, 59.94 tbn, 59.94 tbc
    Stream #0:1: Audio: pcm_s16le, 48000 Hz, mono, s16, 768 kb/s
    Stream #0:2: Audio: pcm_s16le, 48000 Hz, mono, s16, 768 kb/s
    Stream #0:3: Audio: pcm_s16le, 48000 Hz, mono, s16, 768 kb/s
    Stream #0:4: Audio: pcm_s16le, 48000 Hz, mono, s16, 768 kb/s
    Stream #0:5: Data: none
Output #0, mp4, to 'SportsCenter_CGI_Elements_superfast.mp4':
  Metadata:
    timecode        : 00:00:00:00
    encoder         : Lavf54.59.106
    Stream #0:0: Video: mpeg4 ( [0][0][0] / 0x0020), yuv420p, 1280x720
[SAR 1:1 DAR 16:9], q=2-31, 3000 kb/s, 11988 tbn, 29.97 tbc
    Stream #0:1: Audio: aac ([64][0][0][0] / 0x0040), 22050 Hz, stereo,
fltp, 48 kb/s
    Stream #0:2: Audio: aac ([64][0][0][0] / 0x0040), 22050 Hz, stereo,
fltp, 48 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (dvvideo -> mpeg4)
  Stream #0:1 -> #0:1 (pcm_s16le -> aac)
  Stream #0:2 -> #0:2 (pcm_s16le -> aac)
Press [q] to stop, [?] for help
SportsCenter_CGI_Elements.mxf: Operation not permitted01.66
bitrate=1542.2kbits/s
frame= 1864 fps= 37 q=10.9 Lsize=   23220kB time=00:01:02.19
bitrate=3058.4kbits/s
video:22824kB audio:367kB subtitle:0 global headers:0kB muxing overhead
0.125546%