[FFmpeg-cvslog] r13969 - trunk/libavformat/utils.c

[Baptiste Coudurier]

Hi,

Robert Swain wrote:
> 2008/6/28 Michael Niedermayer <michaelni at gmx.at>:
>> On Fri, Jun 27, 2008 at 11:57:56AM -0700, Baptiste Coudurier wrote:
>>> Hi Michael,
>>>
>>> michael wrote:
>>>> Author: michael
>>>> Date: Wed Jun 25 20:15:04 2008
>>>> New Revision: 13969
>>>>
>>>> Log:
>>>> We cannot calculate the duration of vorbis packets even if we do know the
>>>> "minimal" frame_size.
>>> I dunno why yet, but this broke our ogg with vorbis, ffplay play them
>>> very slowly, vlc stop playing them.
>>>
>>> ffmpeg -i <file> -vcodec vorbis test.ogg
>> Please provide the sample, the ogg vorbis i tried works fine here.
> 
> Someone in #ffmpeg was complaining that when using vorbis + theora in
> ogg, before this commit it worked in various players (VLC included, I
> don't remember the others though he said the behaviour was consistent
> across them) but after this commit the players wouldn't play any
> video, only audio. I'll try to get a sample command line which allows
> the issue to be reproduced.
> 

It works fine with ffplay, yes. Vlc does not play the file however.

I generated ogg file using:
ffmpeg -i source_nots.mp2 -acodec vorbis nots.ogg

Both mp2 and ogg files are on mplayerhq/incoming

[ogg @ 0x859faf4]av_read_packet stream=0, pts=0,
dts=-9223372036854775808, size=112,  flags=0
[ogg @ 0x859faf4]av_read_frame_internal stream=0, pts=0, dts=0,
size=112, flags=1
Input #0, ogg, from 'nots.ogg':
  Duration: N/A, start: 0.000000, bitrate: N/A
    Stream #0.0, 1/48000: Audio: vorbis, 48000 Hz, stereo
Output #0, null, to '/dev/null':
    Stream #0.0, 1/90000: Audio: pcm_s16le, 48000 Hz, stereo, 1536 kb/s
Stream mapping:
  Stream #0.0 -> #0.0
Press [q] to stop encoding
[ogg @ 0x859faf4]av_read_packet stream=0, pts=0,
dts=-9223372036854775808, size=108,  flags=0
[ogg @ 0x859faf4]av_read_frame_internal stream=0, pts=0, dts=0,
size=108, flags=1
[ogg @ 0x859faf4]av_read_packet stream=0, pts=0,
dts=-9223372036854775808, size=171,  flags=0
[ogg @ 0x859faf4]av_read_frame_internal stream=0, pts=0, dts=0,
size=171, flags=1
[ogg @ 0x859faf4]av_read_packet stream=0, pts=0,
dts=-9223372036854775808, size=153,  flags=0
[ogg @ 0x859faf4]av_read_frame_internal stream=0, pts=0, dts=0,
size=153, flags=1
[ogg @ 0x859faf4]av_read_packet stream=0, pts=0,
dts=-9223372036854775808, size=191,  flags=0
[ogg @ 0x859faf4]av_read_frame_internal stream=0, pts=0, dts=0,
size=191, flags=1

Seems all packet have dts 0.

-- 
Baptiste COUDURIER                              GnuPG Key Id: 0x5C1ABAAA
Smartjog USA Inc.                                http://www.smartjog.com
Key fingerprint                 8D77134D20CC9220201FC5DB0AC9325C5C1ABAAA