CDG transcode to AVI at wrong frame rate (duration)

[Scott Simon]

I'm having a new issue with using ffmpeg to convert CDG to x264/AVI.

The problem is that in the output file, the audio plays back at the correct rate, but the video whizzes by about 7 times too fast, so it's comepletely out of sync with the audio. After 30 seconds, the audio continues, but the video has ended.

I tried to lock down the input frame rate by using "-r 30", but it appears to be unsupported by the CDG decoder.

On my older machine, with an older build, everything works fine.

I've attached both the working and not-working command lines, version summaries and processing output below:

Current Configuration (video too fast)

Ubuntu 11.10 -- manually built ffmpeg

Command Line:

ffmpeg -threads 2 -i track02.cdg -i track02.mp3 -f avi -b:v 450k -acodec copy -vcodec libx264 -preset slower -qp 0 -b 450k -sws_flags print_info+neighbor -s 640x480 -r 30 -y track02.avi

Output Messages

ffmpeg -threads 2 -i track02.cdg -i track02.mp3 -f avi -acodec copy -vcodec libx264 -preset slower -qp 0 -b 450k -sws_flags print_info+neighbor -s 640x480 -r 30 -y track02.avi
ffmpeg version N-34020-ga666752 Copyright (c) 2000-2012 the FFmpeg developers
  built on Apr 17 2012 15:48:28 with gcc 4.6.1
  configuration: --enable-gpl --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libx264 --enable-nonfree --enable-version3 --enable-x11grab
  libavutil      51. 46.100 / 51. 46.100
  libavcodec     54. 14.101 / 54. 14.101
  libavformat    54.  3.100 / 54.  3.100
  libavdevice    53.  4.100 / 53.  4.100
  libavfilter     2. 70.100 /  2. 70.100
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0. 11.100 /  0. 11.100
  libpostproc    52.  0.100 / 52.  0.100
[cdg @ 0x342b180] max_analyze_duration 5000000 reached at 5000000
Input #0, cdg, from 'track02.cdg':
  Duration: 00:03:51.40, bitrate: 57 kb/s
    Stream #0:0: Video: cdgraphics, pal8, 300x216, 300 fps, 300 tbr, 300 tbn, 300 tbc
[mp3 @ 0x342b9a0] max_analyze_duration 5000000 reached at 5015510
Input #1, mp3, from 'track02.mp3':
  Metadata:
    encoder         : Lavf54.2.100
  Duration: 00:03:51.47, start: 0.000000, bitrate: 168 kb/s
    Stream #1:0: Audio: mp3, 44100 Hz, stereo, s16, 32 kb/s
Please use -b:a or -b:v, -b is ambiguous
[buffer @ 0x34d2a80] w:300 h:216 pixfmt:pal8 tb:1/1000000 sar:0/1 sws_param:flags=2
[swscaler @ 0x34e6c00] Nearest Neighbor / POINT scaler, from pal8 to yuv420p using MMX2
[swscaler @ 0x34edf60] Nearest Neighbor / POINT scaler, from pal8 to yuv420p using MMX2
[swscaler @ 0x34f6980] Nearest Neighbor / POINT scaler, from pal8 to yuv420p using MMX2
[scale @ 0x34d4840] w:300 h:216 fmt:pal8 sar:0/1 -> w:640 h:480 fmt:yuv420p sar:0/1 flags:0x1010
[libx264 @ 0x342c0c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX
[libx264 @ 0x342c0c0] profile High 4:4:4 Predictive, level 3.1, 4:2:0 8-bit
Output #0, avi, to 'track02.avi':
  Metadata:
    ISFT            : Lavf54.3.100
    Stream #0:0: Video: h264 (H264 / 0x34363248), yuv420p, 640x480, q=-1--1, 450 kb/s, 30 tbn, 30 tbc
    Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 44100 Hz, stereo, 32 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (cdgraphics -> libx264)
  Stream #1:0 -> #0:1 (copy)
Press [q] to stop, [?] for help
tile is out of rangeq=0.0 size=     865kB time=00:00:25.56 bitrate= 277.2kbits/s dup=0 drop=6951   
Error while decoding stream #0:0
Truncating packet of size 24 to 1  1039kB time=00:00:30.30 bitrate= 280.9kbits/s dup=0 drop=8238   
AV Filter told us it has a frame available but failed to output one
Error while decoding stream #1:0
AV Filter told us it has a frame available but failed to output one
Error while decoding stream #1:0
AV Filter told us it has a frame available but failed to output one
            ^---- this repeated several thousand times ----^
frame=  928 fps=135 q=-1.0 Lsize=    5482kB time=00:00:30.93 bitrate=1451.7kbits/s dup=0 drop=8343   
video:481kB audio:4760kB global headers:0kB muxing overhead 4.588066%
[libx264 @ 0x2cb60c0] frame I:8     Avg QP: 0.00  size:   626
[libx264 @ 0x2cb60c0] frame P:920   Avg QP: 0.00  size:   530
[libx264 @ 0x2cb60c0] mb I  I16..4: 99.2%  0.0%  0.8%
[libx264 @ 0x2cb60c0] mb P  I16..4:  1.8%  0.0%  0.5%  P16..4:  0.4%  0.1%  0.1%  0.1%  0.0%    skip:97.1%
[libx264 @ 0x2cb60c0] 8x8 transform intra:0.4% inter:2.4%
[libx264 @ 0x2cb60c0] coded y,uvDC,uvAC intra: 14.6% 22.0% 21.8% inter: 0.1% 0.3% 0.3%
[libx264 @ 0x2cb60c0] i16 v,h,dc,p: 96%  3%  1%  0%
[libx264 @ 0x2cb60c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 53% 39%  8%  0%  0%  0%  0%  0%  0%
[libx264 @ 0x2cb60c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 60% 25% 14%  0%  0%  0%  0%  0%  0%
[libx264 @ 0x2cb60c0] i8c dc,h,v,p: 75%  9% 15%  0%
[libx264 @ 0x2cb60c0] Weighted P-Frames: Y:1.5% UV:1.5%
[libx264 @ 0x2cb60c0] ref P L0: 85.1%  0.0% 12.3%  1.0%  0.4%  0.4%  0.3%  0.4%  0.1%
[libx264 @ 0x2cb60c0] kb/s:127.35

ffmpeg -v 9 -loglevel 99 -i track02.cdg -i track02.mp3

ffmpeg version N-34020-ga666752 Copyright (c) 2000-2012 the FFmpeg developers
  built on Apr 17 2012 15:48:28 with gcc 4.6.1
  configuration: --enable-gpl --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libx264 --enable-nonfree --enable-version3 --enable-x11grab
  libavutil      51. 46.100 / 51. 46.100
  libavcodec     54. 14.101 / 54. 14.101
  libavformat    54.  3.100 / 54.  3.100
  libavdevice    53.  4.100 / 53.  4.100
  libavfilter     2. 70.100 /  2. 70.100
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0. 11.100 /  0. 11.100
  libpostproc    52.  0.100 / 52.  0.100
[cdg @ 0x3121080] Format cdg probed with size=2048 and score=50
[cdg @ 0x3121080] File position before avformat_find_stream_info() is 0
[cdg @ 0x3121080] max_analyze_duration 5000000 reached at 5000000
[cdg @ 0x3121080] File position after avformat_find_stream_info() is 183984
Input #0, cdg, from 'track02.cdg':
  Duration: 00:03:51.40, bitrate: 57 kb/s
    Stream #0:0, 1502, 1/300: Video: cdgraphics, pal8, 300x216, 1/300, 300 fps, 300 tbr, 300 tbn, 300 tbc
[mp3 @ 0x31218a0] Format mp3 probed with size=2048 and score=51
[mp3 @ 0x31218a0] File position before avformat_find_stream_info() is 660
[mp3 @ 0x31218a0] max_analyze_duration 5000000 reached at 5015510
[mp3 @ 0x31218a0] File position after avformat_find_stream_info() is 21140
Input #1, mp3, from 'track02.mp3':
  Metadata:
    encoder         : Lavf54.2.100
  Duration: 00:03:51.47, start: 0.000000, bitrate: 168 kb/s
    Stream #1:0, 194, 1/14112000: Audio: mp3, 44100 Hz, stereo, s16, 32 kb/s
At least one output file must be specified

Older Configuration (works fine)

Ubuntu 10.04 -- manually built ffmpeg

Command Line:

ffmpeg -threads 2 -i track02.cdg -i track02.mp3 -f avi -b 450k -vcodec libx264 -sws_flags print_info+neighbor -acodec copy -vpre lossless_slower -s 640x480 -r 30 -y track02.avi

Output Messages:

FFmpeg version SVN-r25179, Copyright (c) 2000-2010 the FFmpeg developers
  built on Sep 24 2010 10:16:28 with gcc 4.4.3
  configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libfaac --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --enable-x11grab
  libavutil     50.28. 0 / 50.28. 0
  libavcore      0. 9. 0 /  0. 9. 0
  libavcodec    52.90. 0 / 52.90. 0
  libavformat   52.78. 5 / 52.78. 5
  libavdevice   52. 2. 2 / 52. 2. 2
  libavfilter    1.40. 0 /  1.40. 0
  libswscale     0.11. 0 /  0.11. 0
  libpostproc   51. 2. 0 / 51. 2. 0
[cdg @ 0x12d5470] max_analyze_duration reached
Input #0, cdg, from 'track02.cdg':
  Duration: 00:03:51.40, bitrate: 57 kb/s
    Stream #0.0: Video: cdgraphics, pal8, 300x216, 300 fps, 300 tbr, 300 tbn, 300 tbc
[mp3 @ 0x1313e60] max_analyze_duration reached
Input #1, mp3, from 'track02.mp3':
  Metadata:
    TSSE            : Lavf54.2.100
  Duration: 00:03:51.47, start: 0.000000, bitrate: 168 kb/s
    Stream #1.0: Audio: mp3, 44100 Hz, 2 channels, s16, 168 kb/s
[swscaler @ 0x1339e30] Nearest Neighbor / POINT scaler, from pal8 to yuv420p using MMX2
[buffer @ 0x132aa10] w:300 h:216 pixfmt:pal8
[scale @ 0x132ada0] w:300 h:216 fmt:pal8 -> w:640 h:480 fmt:yuv420p flags:0x1010
[swscaler @ 0x13494e0] Nearest Neighbor / POINT scaler, from pal8 to yuv420p using MMX2
[libx264 @ 0x1326760] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.1 Cache64
[libx264 @ 0x1326760] profile High 4:4:4 Predictive, level 3.0, bit depth 8
Output #0, avi, to 'aviout/track02.avi':
  Metadata:
    ISFT            : Lavf52.78.5
    Stream #0.0: Video: libx264, yuv420p, 640x480, q=10-51, 450 kb/s, 30 tbn, 30 tbc
    Stream #0.1: Audio: U[0][0][0] / 0x0055, 44100 Hz, 2 channels, 168 kb/s
Stream mapping:
  Stream #0.0 -> #0.0
  Stream #1.0 -> #0.1
Press [q] to stop encoding
[cdgraphics @ 0x12d6720] tile is out of rangee=190.90 bitrate= 207.3kbits/s dup=0 drop=5462   
Error while decoding stream #0.0
frame= 2649 fps=167 q=-1.0 Lsize=    5880kB time=221.73 bitrate= 217.2kbits/s dup=0 drop=6622   
video:744kB audio:4760kB global headers:0kB muxing overhead 6.820693%
frame I:12    Avg QP: 0.00  size:  5076
[libx264 @ 0x1326760] frame P:2637  Avg QP: 0.00  size:   266
[libx264 @ 0x1326760] mb I  I16..4: 92.3%  0.1%  7.6%
[libx264 @ 0x1326760] mb P  I16..4:  0.3%  0.0%  0.2%  P16..4:  0.1%  0.0%  0.1%  0.0%  0.0%    skip:99.3%
[libx264 @ 0x1326760] 8x8 transform intra:0.6% inter:8.3%
[libx264 @ 0x1326760] coded y,uvDC,uvAC intra: 22.3% 31.9% 31.6% inter: 0.1% 0.2% 0.2%
[libx264 @ 0x1326760] i16 v,h,dc,p: 92%  6%  2%  0%
[libx264 @ 0x1326760] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 55% 36%  9%  0%  0%  0%  0%  0%  0%
[libx264 @ 0x1326760] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 59% 27% 14%  0%  0%  0%  0%  0%  0%
[libx264 @ 0x1326760] i8c dc,h,v,p: 65% 13% 22%  0%
[libx264 @ 0x1326760] Weighted P-Frames: Y:0.0%
[libx264 @ 0x1326760] ref P L0: 92.2%  0.1%  5.2%  1.7%  0.8%
[libx264 @ 0x1326760] kb/s:27.49

ffmpeg -v 9 -loglevel 99 -i track02.cdg -i track02.mp3

FFmpeg version SVN-r25179, Copyright (c) 2000-2010 the FFmpeg developers
  built on Sep 24 2010 10:16:28 with gcc 4.4.3
  configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libfaac --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --enable-x11grab
  libavutil     50.28. 0 / 50.28. 0
  libavcore      0. 9. 0 /  0. 9. 0
  libavcodec    52.90. 0 / 52.90. 0
  libavformat   52.78. 5 / 52.78. 5
  libavdevice   52. 2. 2 / 52. 2. 2
  libavfilter    1.40. 0 /  1.40. 0
  libswscale     0.11. 0 /  0.11. 0
  libpostproc   51. 2. 0 / 51. 2. 0
[NULL @ 0x26f9470] Probed with size=2048 and score=50
[cdg @ 0x26f9470] max_analyze_duration reached
Input #0, cdg, from 'track02.cdg':
  Duration: 00:03:51.40, bitrate: 57 kb/s
    Stream #0.0, 1502, 1/300: Video: cdgraphics, pal8, 300x216, 1/300, 300 fps, 300 tbr, 300 tbn, 300 tbc
[NULL @ 0x2737ad0] Probed with size=2048 and score=51
[mp3 @ 0x2737ad0] max_analyze_duration reached
Input #1, mp3, from 'track02.mp3':
  Metadata:
    TSSE            : Lavf54.2.100
  Duration: 00:03:51.47, start: 0.000000, bitrate: 168 kb/s
    Stream #1.0, 194, 1/14112000: Audio: mp3, 44100 Hz, 2 channels, s16, 168 kb/s
At least one output file must be specified

[Carl Eugen Hoyos]

Regression since 5872c78.

[Michael Niedermayer]

should be fixed
please test, i had only a audio less source so had to guess a bit what is desync and what not ...