[FFmpeg-devel] Regarding "error, non monotone timestamps"

[Yadnesh Phadke]

Any idea how to resolve the issue with latest FFMpeg?

Regards,
Yadnesh

On Mon, Jul 19, 2010 at 5:41 PM, Yadnesh Phadke <yadnesh at gmail.com> wrote:

> Hi All,
>
> I am new to ffmpeg but have been experimenting with FFMpeg features for
> some time now.  I am using FFMpeg, *SVN-r24078*.  I have MPEG-2 TS media
> that I am trying to stream the contained A/V over RTP.  It always fails with
> the following or similar error:
>
>                                                      "*error, non monotone
> timestamps 50 >= 50*"
>
> *This issue is not seen in the if I use code from "ffmpeg-0.6.tar.bz2"* I
> had downloaded on 17June2010.  Is this issue resolved now?  Is there any
> workaround for the issue?
>
>
> Another issue I see is that even though I am using global_header flag I get
> the error "AAC with no global headers is currently not supported".  This
> error is not seen if I use "-acodec aac".  But then I have to use "-strict
> -experimental" as I am not using libfaac.  Is there any issue with using
> "copy"?  If  I explicitly specify the codec even though I do not expect
> conversion, will FFMpeg decode and then again encode audio stream from the
> input?
>
> I referred the command from "
> http://www.mail-archive.com/libav-user at mplayerhq.hu/msg00839.html"
> Here is the complete output:
>
> ==================================================================================
> yadnesh at ubuntu:~/svn_ffmpeg/ffmpeg$ ./ffmpeg -re -i
> ~/Media/fileSequence0.ts -vcodec copy -an -f rtp rtp://127.0.0.1:10000 -vn
> -ac 2 -ar 44100 -flags +global_header -acodec copy -f rtp rtp://
> 127.0.0.1:20000 -newaudio
> FFmpeg version SVN-r24078, Copyright (c) 2000-2010 the FFmpeg developers
>   built on Jul 19 2010 12:59:23 with gcc 4.2.4 (Ubuntu 4.2.4-1ubuntu4)
>   configuration: --enable-shared --disable-static --disable-mmx
> --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-version3
>   WARNING: library configuration mismatch
>   libavutil   configuration: --enable-shared --disable-static
> --disable-optimizations --disable-mmx --disable-stripping --enable-debug
> --disable-yasm
>   libavcodec  configuration: --enable-shared --disable-static
> --disable-optimizations --disable-mmx --disable-stripping --enable-debug
> --disable-yasm
>   libavfilter configuration: --enable-shared --disable-static
> --disable-optimizations --disable-mmx --disable-stripping --enable-debug
> --disable-yasm
>   libswscale  configuration: --enable-shared --disable-static
> --disable-optimizations --disable-mmx --disable-stripping --enable-debug
> --disable-yasm
>   libavutil     50.20. 0 / 50.20. 0
>   libavcodec    52.79. 1 / 52.79. 1
>   libavformat   52.73. 0 / 52.73. 0
>   libavdevice   52. 2. 0 / 52. 2. 0
>   libavfilter    1.20. 1 /  1.20. 1
>   libswscale     0.11. 0 /  0.11. 0
> [mpegts @ 0x807b510] max_analyze_duration reached
>
> Seems stream 1 codec frame rate differs from container frame rate:
> 180000.00 (180000/1) -> 14.99 (15000/1001)
> Input #0, mpegts, from '/home/yadnesh/Media/fileSequence0.ts':
>   Duration: 00:00:09.94, start: 10.000000, bitrate: 201 kb/s
>   Program 1
>     Stream #0.0[0x101]: Audio: aac, 22050 Hz, mono, s16, 25 kb/s
>     Stream #0.1[0x102]: Video: h264, yuv420p, 192x144, 14.99 tbr, 90k tbn,
> 180k tbc
> Output #0, rtp, to 'rtp://127.0.0.1:10000':
>   Metadata:
>     encoder         : Lavf52.73.0
>     Stream #0.0: Video: [27][0][0][0] / 0x001B, yuv420p, 192x144, q=2-31,
> 90k tbn, 90k tbc
> Output #1, rtp, to 'rtp://127.0.0.1:20000':
>   Metadata:
>     encoder         : Lavf52.73.0
>     Stream #1.0: Audio: aac, 22050 Hz, mono, 25 kb/s
> Stream mapping:
>   Stream #0.1 -> #0.0
>   Stream #0.0 -> #1.0
> [NULL @ 0x80831b0] *AAC with no global headers is currently not supported*
> .
> SDP:
> v=0
> o=- 0 0 IN IP4 127.0.0.1
> s=No Name
> t=0 0
> a=tool:libavformat 52.73.0
> m=video 10000 RTP/AVP 96
> c=IN IP4 127.0.0.1
> a=rtpmap:96 H264/90000
> a=fmtp:96 packetization-mode=1;
> sprop-parameter-sets=J0LgC6kYYJ2ANQYBBrbCte98BA==,KN4JiA==
> m=audio 20000 RTP/AVP 97
> c=IN IP4 127.0.0.1
> b=AS:25
>
> Press [q] to stop encoding
> *[rtp @ 0x807e690] st:0 YDP error, non monotone timestamps 50 >=
> 50.2kbits/s*
> *av_interleaved_write_frame(): Operation not permitted*
>
> ==================================================================================
>
> Regards,
> Yadnesh
>
> --
>
> ----------------------------------------------------------------------
> Christopher Morley - There is only one success - to be able to spend your
> life in your own way.
>



-- 

----------------------------------------------------------------------
Christopher Morley - There is only one success - to be able to spend your
life in your own way.