The VideoLAN Forums

Posted: **11 Jan 2013 19:37**

Hi all,

I am experimenting strange things

...
I am trying to transcode AVI files to h264...
I use this command line:

vlc.exe Video_file.avi --sout=#transcode{venc=x264{profile=baseline},vcodec=h264,vb=800,acodec=mp4a,ab=128,}:standard{access=file,mux=mp4,dst=TEST_enc.mp4} -vvv

Doing so, the resulting file has a few missing frames at the end...(EX: original AVI file has 21' length, resulting MP4 file has 20'18frames lenght ... 7 frames have disappeared

)
Also the frame rate reported in VLC codec information is inaccurate (EX: frame rate = 25.000821 instead of 25)... Adding parameter fps=25 does not help...
But, I have noticed that using, for example, --stop-time=10 in the command line, result to a correct frame rate.. 25 !!!
I am a little disorientated...

Could some one help me on this?
Thanks in advance.

Michel.

Posted: **12 Jan 2013 15:01**

Hi all,

I have tried the code above using the vlc-2.1.0-git-20130112-0003-win32.zip (EDIT: I do something wrong testing...so, my following remarks are not true for this VLC version. Sorry. )and the result is the same (missing frames at the end of the file + inaccurate frame rate)...
What I am doing wrong?
Would someone try this code and tell if it got the same result?
Please, help me to solve this. Give me some orientation...

Thanks, Michel.

ReEDIT: This version just CRASH...

Posted: **12 Jan 2013 20:43**

Hi all,

I have installed this version vlc-2.0.5-20121213-0204

The resulting file does not play...
here the messages log:

Code: Select all

main debug: processing request item: BARRAS.mp4, node: Lista de reproducción, skip: 0
main debug: resyncing on BARRAS.mp4
main debug: BARRAS.mp4 is at 0
main debug: starting playback of the new playlist item
main debug: resyncing on BARRAS.mp4
main debug: BARRAS.mp4 is at 0
main debug: creating new input thread
main debug: Creating an input for 'BARRAS.mp4'
main debug: using timeshift granularity of 50 MiB, in path 'C:\DOCUME~1\MAEB8~1.LEM\CONFIG~1\Temp'
main debug: `file:///C:/Documents%20and%20Settings/m.lemarec/Escritorio/BARRAS.mp4' gives access `file' demux `' path `/C:/Documents%20and%20Settings/m.lemarec/Escritorio/BARRAS.mp4'
main debug: creating demux: access='file' demux='' location='/C:/Documents%20and%20Settings/m.lemarec/Escritorio/BARRAS.mp4' file='C:\Documents and Settings\m.lemarec\Escritorio\BARRAS.mp4'
main debug: looking for access_demux module: 3 candidates
main debug: no access_demux module matching "file" could be loaded
main debug: TIMER module_need() : 0.420 ms - Total 0.420 ms / 1 intvls (Avg 0.420 ms)
main debug: creating access 'file' location='/C:/Documents%20and%20Settings/m.lemarec/Escritorio/BARRAS.mp4', path='C:\Documents and Settings\m.lemarec\Escritorio\BARRAS.mp4'
main debug: looking for access module: 3 candidates
filesystem debug: opening file `C:\Documents and Settings\m.lemarec\Escritorio\BARRAS.mp4'
main debug: using access module "filesystem"
main debug: TIMER module_need() : 0.325 ms - Total 0.325 ms / 1 intvls (Avg 0.325 ms)
main debug: Using stream method for AStream*
main debug: starting pre-buffering
main debug: received first data after 0 ms
main debug: pre-buffering done 203 bytes in 0s - 3360 KiB/s
main debug: looking for stream_filter module: 4 candidates
main debug: no stream_filter module matching "any" could be loaded
main debug: TIMER module_need() : 0.208 ms - Total 0.208 ms / 1 intvls (Avg 0.208 ms)
main debug: looking for stream_filter module: 1 candidate
main debug: using stream_filter module "stream_filter_record"
main debug: TIMER module_need() : 0.118 ms - Total 0.118 ms / 1 intvls (Avg 0.118 ms)
main debug: creating demux: access='file' demux='' location='/C:/Documents%20and%20Settings/m.lemarec/Escritorio/BARRAS.mp4' file='C:\Documents and Settings\m.lemarec\Escritorio\BARRAS.mp4'
main debug: looking for demux module: 55 candidates
mp4 debug: dumping root Box "root"
mp4 debug: |   + ftyp size 28
mp4 debug: |   + moov size 159
mp4 debug: |   |   + mvhd size 108
mp4 debug: |   |   + udta size 43
mp4 debug: |   |   |   + cenc size 35
mp4 debug: |   + wide size 8
mp4 debug: |   + mdat size 8
mp4 debug: ISO Media file (isom) version 0.
mp4 error: cannot find any /moov/trak
es error: cannot peek
es error: cannot peek
playlist debug: not enough data
playlist debug: not enough data
mod debug: MOD validation failed (ext=mp4)
lua debug: Trying Lua scripts in C:\Documents and Settings\m.lemarec\Datos de programa\vlc\lua\playlist
lua debug: Trying Lua scripts in C:\Archivos de programa\VideoLAN\VLC\lua\playlist
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\anevia_streams.luac
qt4 debug: IM: Setting an input
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\anevia_xml.luac
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\appletrailers.luac
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\bbc_co_uk.luac
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\break.luac
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\canalplus.luac
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\cue.luac
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\dailymotion.luac
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\extreme.luac
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\france2.luac
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\googlevideo.luac
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\jamendo.luac
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\joox.luac
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\katsomo.luac
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\koreus.luac
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\lelombrik.luac
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\metacafe.luac
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\metachannels.luac
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\mpora.luac
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\pinkbike.luac
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\pluzz.luac
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\rockbox_fm_presets.luac
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\soundcloud.luac
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\vimeo.luac
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\youtube.luac
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\youtube_homepage.luac
lua debug: Trying Lua playlist script C:\Archivos de programa\VideoLAN\VLC\lua\playlist\zapiks.luac
avcodec debug: trying url: C:\Documents and Settings\m.lemarec\Escritorio\BARRAS.mp4
avcodec debug: detected format: mov,mp4,m4a,3gp,3g2,mj2
avcodec error: Could not open C:\Documents and Settings\m.lemarec\Escritorio\BARRAS.mp4: Specified event object handle is invalid
vobsub debug: could not read vobsub IDX file
ps error: cannot peek
main debug: no demux module matching "mp4" could be loaded
main debug: TIMER module_need() : 26.424 ms - Total 26.424 ms / 1 intvls (Avg 26.424 ms)
main error: no suitable demux module for `file/:///C:/Documents%20and%20Settings/m.lemarec/Escritorio/BARRAS.mp4'
main debug: removing module "stream_filter_record"
main debug: removing module "filesystem"
main debug: finished input
main debug: dead input
main debug: changing item without a request (current 0/1)
main debug: nothing to play
qt4 debug: IM: Deleting the input
main debug: Destroying the input for 'BARRAS.mp4'
main debug: TIMER input launching for 'BARRAS.mp4' : 159.788 ms - Total 159.788 ms / 1 intvls (Avg 159.788 ms)

Do not Know what to do more...

SAlut.

Posted: **19 Jan 2013 15:14**

Hi,

I have played the resulting transcoded file with ffplay... here the logs from it:

Code: Select all

ffplay version N-48810-gaaa7d2f Copyright (c) 2003-2013 the FFmpeg developers
  built on Jan 13 2013 22:01:22 with gcc 4.7.2 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
le-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libg
sm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --e
nable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --e
nable-libspeex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --en
able-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable
-libxavs --enable-libxvid --enable-zlib --enable-filter=frei0r
  libavutil      52. 14.100 / 52. 14.100
  libavcodec     54. 86.100 / 54. 86.100
  libavformat    54. 59.107 / 54. 59.107
  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
  libpostproc    52.  2.100 / 52.  2.100
[h264 @ 0262a620] reference count overflow
[h264 @ 0262a620] decode_slice_header error
[h264 @ 0262a620] number of reference frames (0+4) exceeds max (3; probably corr
upt input), discarding one
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\Documents and Settings\m.lemarec\TES
T_enc.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 0
    compatible_brands: mp41avc1qt
    creation_time   : 2013-01-19 13:48:59
    encoder         : vlc 2.0.5 stream output
    encoder-eng     : vlc 2.0.5 stream output
  Duration: 00:00:29.88, start: 0.000000, bitrate: 42 kb/s
    Stream #0:0(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 2
kb/s
    Metadata:
      creation_time   : 2013-01-19 13:48:59
      handler_name    : SoundHandler
    Stream #0:1(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yu
v420p, 720x576 [SAR 16:15 DAR 4:3], 33 kb/s, 25 fps, 25 tbr, 1001 tbn, 50 tbc
    Metadata:
      creation_time   : 2013-01-19 13:48:59
      handler_name    : VideoHandler
[h264 @ 02624ae0] reference count overflow
[h264 @ 02624ae0] decode_slice_header error
   0.02 A-V:[h264 @ 026a1620]  -0.182 number of reference frames (0+4) exceeds m
ax (3; probably corrupt input), discarding one
Frame changed from size:0x0 to size:720x576/0
 304.90 A-V:232.262 fd=  82 aq=    0KB vq=    0KB sq=    0B f=0/0

Note the (do not know what this means):
[h264 @ 0262a620] number of reference frames (0+4) exceeds max (3; probably corr
upt input), discarding one
and:
Duration: 00:00:29.88, start: 0.000000, bitrate: 42 kb/s

Here the logs while playing the original AVI file:

Code: Select all

ffplay version N-48810-gaaa7d2f Copyright (c) 2003-2013 the FFmpeg developers
  built on Jan 13 2013 22:01:22 with gcc 4.7.2 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
le-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libg
sm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --e
nable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --e
nable-libspeex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --en
able-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable
-libxavs --enable-libxvid --enable-zlib --enable-filter=frei0r
  libavutil      52. 14.100 / 52. 14.100
  libavcodec     54. 86.100 / 54. 86.100
  libavformat    54. 59.107 / 54. 59.107
  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
  libpostproc    52.  2.100 / 52.  2.100
[avi @ 026081a0] non-interleaved AVI
Input #0, avi, from 'C:\Documents and Settings\m.lemarec\Escritorio\BARRAS.avi':

  Duration: 00:00:30.00, start: 0.000000, bitrate: 30466 kb/s
    Stream #0:0: Video: dvvideo (dvsd / 0x64737664), yuv420p, 720x576 [SAR 16:15
 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
    Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, 2 channels,
 s16, 1536 kb/s
Frame changed from size:0x0 to size:720x576
   4.92 A-V: -0.013 fd=   1 aq=   57KB vq=  844KB sq=    0B f=0/0

Note:
Duration: 00:00:30.00, start: 0.000000, bitrate: 30466 kb/s

All this seems to have relation with another topic I have posted Strange behaviours - --sout=#gather:transcode{}

Please, I am doing something wrong? is it a Bug? What can I do to get it right?...

Michel.

Posted: **20 Jan 2013 14:03**

Finally, I have opened an tracticket... Ticket #8062
Hope I am doing the correct.

The VideoLAN Forums

transcode h264 missing frames at end + inaccurate frame rate

transcode h264 missing frames at end + inaccurate frame rate

Re: transcode h264 missing frames at end + inaccurate frame

Re: transcode h264 missing frames at end + inaccurate frame

Re: transcode h264 missing frames at end + inaccurate frame

Re: transcode h264 missing frames at end + inaccurate frame