[Ffmpeg-devel] Re: changes to asf demuxer

[Jonathon Elwood]

Thank you for looking at this; it appears that the fps is being detected
correctly.  However, now the Audio and Video aren't in sync for most of the
shows I tested.  I tried this with the same sample I gave you for the fps
problem (Channel 4 News_Channel 4_20_10_2006_19_00_01.dvr-ms).  It looks
like the video is ahead of the audio.

Should I post this as a new issue?

Below is the output from ffmpeg

C:\Users\jon\Desktop\MPlayer>"ffmpeg" -benchmark -y -threads 2 -i "Channel 4
New

s_Channel 4_20_10_2006_19_00_01.dvr-ms" -vcodec mpeg4 -s 320x240 -qscale 4
-vtag

 XVID -acodec mp3 -ac 2 -ar 44100 -ab 128 -f avi "Channel 4 News_Channel
4_20_10

_2006_19_00_01.avi"

FFmpeg version SVN-rUNKNOWN, Copyright (c) 2000-2007 Fabrice Bellard, et al.

  configuration: --enable-static --enable-memalign-hack --enable-libmp3lame
--en

able-xvid --enable-gpl --enable-libfaad --enable-libfaac --enable-w32threads
--e

nable-liba52

  libavutil version: 49.4.0

  libavcodec version: 51.40.2

  libavformat version: 51.11.0

  built on Mar 30 2007 13:51:47, gcc: 3.4.5 (mingw special)

Input #0, asf, from 'Channel 4 News_Channel 4_20_10_2006_19_00_01.dvr-ms':

  Duration: 00:03:56.1, start: 0.000000, bitrate: 3141 kb/s

  Stream #0.0: Audio: mp2, 48000 Hz, stereo, 192 kb/s

  Stream #0.1: Video: mpeg2video, yuv420p, 704x576, 10000 kb/s, 25.00 fps(r)

Output #0, avi, to 'Channel 4 News_Channel 4_20_10_2006_19_00_01.avi':

  Stream #0.0: Video: mpeg4, yuv420p, 320x240, q=2-31, 200 kb/s, 25.00fps(c)

  Stream #0.1: Audio: mp3, 44100 Hz, stereo, 0 kb/s

Stream mapping:

  Stream #0.1 -> #0.0

  Stream #0.0 -> #0.1

Press [q] to stop encoding

[mpeg2video @ 007FDF30]ac-tex damaged at 25 33=234.9 bitrate= 587.7kbits/s

[mpeg2video @ 007FDF30]Warning MVs not available

[mpeg2video @ 007FDF30]concealing 132 DC, 132 AC, 132 MV errors

frame= 5905 fps=127 q=4.0 Lsize=   17153kB time=236.0 bitrate= 595.3kbits/s

video:13091kB audio:3688kB global headers:0kB muxing overhead 2.228538%

bench: utime=46.416s


On 3/30/07, Michael Niedermayer <michaelni at gmx.at> wrote:
>
> Hi
>
> On Sat, Mar 24, 2007 at 01:21:26PM -0400, Jon Elwood wrote:
> [...]
> > Unfortunately, I spoke too soon because this issue isn't completely
> fixed
> > (it is much better - it now works on 90% of my samples).  I have another
> > sample where the real fps is 25, but ffmpeg is detecting it as 8.33 (it
> is
> > really 25/1, but it is being detected as 25/3).  I've uploaded it to
> > upload.mplayerhq.hu/MPlayer/incoming/ Channel 4 News_Channel
> > 4_20_10_2006_19_00_01.dvr-ms.  Below is the output of ffmpeg.  Whoever
> > looked at this last weekend, can you please look at this sample?  Thank
> you
> > for your help.
>
> fixed
>
> [...]
> --
> Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
>
> Good people do not need laws to tell them to act responsibly, while bad
> people will find a way around the laws. -- Plato
>
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>