[FFmpeg-devel] new open source h.264 source

Francois Oligny-Lemieux eucloid
Sat Mar 1 17:11:24 CET 2008 

On Fri, Feb 29, 2008 at 7:58 PM, Michael Niedermayer <michaelni at gmx.at>
wrote:

> On Fri, Feb 29, 2008 at 02:18:12PM -0500, Francois Oligny-Lemieux wrote:
> > On 2/20/08, Michael Niedermayer <michaelni at gmx.at> wrote:
> > >
> > >
> > > Speaking of deblocking, our filter_mb_fast() is buggy it butchers some
> of
> > > the reference streams. Iam just mentioning that before someone wastes
> time
> > > optimizing buggy code ... he should fix it first :)
> > >
> > > [...]
> >
> >
> >
> > Last week I found out when I decode a stream with high gop size (300) +
> > deblocking filter on + MBAFF, I get some blocky artefacts on the decoded
> > picture (when using ffmpeg to decode). If I turn off MBAFF it works
> fine. If
> > I turn off deblocking it works fine. Using JM12.2 as a reference decoder
> > shows that the original stream can be decoded successfully without
> > artefacts.
> >
> > Do you think it's the same problem as in the filter_mb_fast() ? Most of
> the
> > code in filter_mb_fast is about non-MBAFF.
> >
> > Any hint how to debug this?
>
> The standard way to debug decoder differences between ff and JM is to have
> both output raw YUV and then search for the first differing byte, after
> that
> find out in what MB that is and add printf() av_log() as needed until you
> find out where JM and ff diverge for that MB. (it should be somewhere in
> the loop filter according to your description) Last you then look in the
> spec to see how the specific part should be done, fix it and send a patch.
>

Thanks! this is exactly what I needed.


> I'm trying to see if the lastest ffmpeg svn has
> > this problem but I can't decode my h.264 file to .yuv (see below)
> >
> > I can supply a sample .ts file if needed or .264 annex b.
> >
> > BTW I know this is user related question, but when building ffmpeg as-is
> > from svn with cygwin, I cannot get to take h264 .ts nor .264 files and
> > output .yuv files, it responds with:
> >
> > ...
> > [rawvideo @ 0x7606f0]dimensions not set.
> > Could not write header for output file #0
> >
> > Is it my build that's corrupted or this is expected ?
>
> what command line did you use and what was the complete and uncut output
> from ffmpe?



Here is the command line and the output. Note that the series of "non
existing PPS referenced" is normal and is due to having a long gop size and
the file not begining on an I frame (and the SPS is only sent before an I
frame).

Also note that I get the same failure when trying with the .264 version as a
source.

$ ./ffmpeg -i /cygdrive/g/qa_haiPLAY_2.0.2.2/hm4ed_ts\(mbaff\)_001.ts
out.yuv
FFmpeg version SVN-r12279, Copyright (c) 2000-2008 Fabrice Bellard, et al.
  configuration:
  libavutil version: 49.6.0
  libavcodec version: 51.50.1
  libavformat version: 52.7.0
  libavdevice version: 52.0.0
  built on Feb 29 2008 11:08:39, gcc: 3.4.4 (cygming special, gdc 0.12,
using dm
d 0.125)
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
[h264 @ 0x754540]non existing PPS referenced
[h264 @ 0x754540]decode_slice_header error
[h264 @ 0x754540]no frame!
Input #0, mpegts, from
'/cygdrive/g/qa_haiPLAY_2.0.2.2/hm4ed_ts(mbaff)_001.ts':
  Duration: 00:00:54.9, start: 91491.602978, bitrate: 2405 kb/s
  Program 1
    Stream #0.0[0x21]: Video: h264, yuv420p, 90000.00 tb(r)
    Stream #0.1[0x24]: Audio: 0x0000, 48000 Hz, stereo, 255 kb/s
File 'out.yuv' already exists. Overwrite ? [y/N] y
Output #0, rawvideo, to 'out.yuv':
    Stream #0.0: Video: rawvideo, yuv420p, q=2-31, 200 kb/s, 90000.00 tb(c)
Stream mapping:
  Stream #0.0 -> #0.0
[rawvideo @ 0x7606f0]dimensions not set
Could not write header for output file #0 (incorrect codec parameters ?)

Regards,
Francois

More information about the ffmpeg-devel mailing list