Opened 11 years ago
Last modified 8 years ago
#3289 open enhancement
support L264 without "Lead Extension"
| Reported by: | ami_stuff | Owned by: | |
|---|---|---|---|
| Priority: | wish | Component: | undetermined |
| Version: | git-master | Keywords: | h264 |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | yes | |
| Analyzed by developer: | no |
Description
attached file is compressed with disabled "Lead Extension" (see screenshot) and decodes correctly with "VSS H.264" vfw codec (when I modify FourCC to VSSH), so I belive it should be easy to support it with FFmpeg
http://www.datafilehost.com/d/cf66ba07
C:\>ffmpeg -i l264_1.avi
ffmpeg version N-59696-gc0a33c4 Copyright (c) 2000-2014 the FFmpeg developers
built on Jan 8 2014 22:01:50 with gcc 4.8.2 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetyp
e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena
ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l
ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp
eex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aa
cenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavp
ack --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
libavutil 52. 62.100 / 52. 62.100
libavcodec 55. 47.100 / 55. 47.100
libavformat 55. 22.102 / 55. 22.102
libavdevice 55. 5.102 / 55. 5.102
libavfilter 4. 0.103 / 4. 0.103
libswscale 2. 5.101 / 2. 5.101
libswresample 0. 17.104 / 0. 17.104
libpostproc 52. 3.100 / 52. 3.100
[avi @ 02b9a5a0] non-interleaved AVI
[avi @ 02b9a5a0] Could not find codec parameters for stream 1 (Video: none (L264
/ 0x3436324C), 352x244): unknown codec
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Guessed Channel Layout for Input Stream #0.0 : stereo
Input #0, avi, from 'l264_1.avi':
Duration: 00:00:04.13, start: 0.000000, bitrate: 17046 kb/s
Stream #0:0: Audio: adpcm_ima_wav ([17][0][0][0] / 0x0011), 44100 Hz, stereo
, s16p, 352 kb/s
Stream #0:1: Video: none (L264 / 0x3436324C), 352x244, 30 fps, 30 tbr, 30 tb
n, 30 tbc
At least one output file must be specified
Attachments (3)
Change History (15)
by , 11 years ago
| Attachment: | l264_1.jpg added |
|---|
comment:1 by , 11 years ago
| Keywords: | h264 added |
|---|---|
| Priority: | normal → wish |
| Reproduced by developer: | set |
| Status: | new → open |
| Type: | defect → enhancement |
| Version: | unspecified → git-master |
comment:2 by , 9 years ago
comment:3 by , 9 years ago
so this time I downloaded mpegable codec:
http://www.softpedia.com/get/Multimedia/Video/Codec-Packs-Video-Codecs/mpegable-AVC.shtml
changed "L264" FourCC in my sample (l264_1.avi) to "DAVC" and it decodes correctly
follow-up: 11 comment:4 by , 9 years ago
here is dll alone, maybe could be used with mplayer for testing purposes
comment:5 by , 9 years ago
see also ticket #5275 (mpegable codec decodes correctly "l264_1.avi" sample) - maybe fixing it will fix this ticket as well
follow-up: 7 comment:6 by , 9 years ago
It looks like they produced non-standard files in v1 (1.0.0.28) version of their encoder (2005) and this got fixed in version v2 (1.0.0.35) (2006).
http://www.datafilehost.com/d/af32e327
Here are more V1 samples:
https://web.archive.org/web/20050203212612/http://leadcodecs.com/Download/H264-Videos.htm
(FFmpeg's demuxer doesn't like "Careless Whisper" and "Limerick" files)
comment:7 by , 9 years ago
Replying to ami_stuff:
It looks like they produced non-standard files in v1 (1.0.0.28) version of their encoder (2005) and this got fixed in version v2 (1.0.0.35) (2006).
http://www.datafilehost.com/d/af32e327
Here are more V1 samples:
https://web.archive.org/web/20050203212612/http://leadcodecs.com/Download/H264-Videos.htm
This open source decoder plays (almost correctly) Lead H264 v1 file:
https://web.archive.org/web/20060101123100/http://www-user.tu-chemnitz.de/~mfie/stuff/SA/
ffmpeg -i l264_v1.avi -vcodec copy l264_v1.264
ffmpeg -i l264_v2.avi -vcodec copy l264_v2.264
playh264 l264_[v1/v2].264
"Minimal H.264 decoder (by Martin Fiedler)
OPEN SOURCE. Basic decoder.
http://keyj.s2000.ws/?page_id=41"
comment:8 by , 9 years ago
l264_v1:
H.264 stream: 320x240, zooming to 320x240 Hint: [Space] toggles pause; [Enter] advances to next frame Frame 1: I-Slice Frame 2: P-Slice Frame 3: P-Slice Frame 4: P-Slice Frame 5: P-Slice Frame 6: P-Slice Frame 7: P-Slice Frame 8: P-Slice Frame 9: P-Slice Frame 10: P-Slice Frame 11: P-Slice Frame 12: P-Slice Frame 13: P-Slice Frame 14: P-Slice Frame 15: P-Slice Frame 16: P-Slice Frame 17: P-Slice Frame 18: P-Slice Frame 19: P-Slice Frame 20: P-Slice Frame 21: P-Slice Frame 22: P-Slice Frame 23: P-Slice Frame 24: P-Slice Frame 25: P-Slice Frame 26: P-Slice Frame 27: P-Slice Frame 28: P-Slice Frame 29: P-Slice Frame 30: P-Slice Frame 31: P-Slice Frame 32: P-Slice Frame 33: P-Slice Frame 34: P-Slice Frame 35: P-Slice Frame 36: P-Slice Frame 37: P-Slice Frame 38: P-Slice Frame 39: P-Slice Frame 40: P-Slice Frame 41: P-Slice Frame 42: P-Slice Frame 43: P-Slice Frame 44: P-Slice Frame 45: P-Slice Frame 46: P-Slice Frame 47: P-Slice Frame 48: P-Slice Frame 49: P-Slice Frame 50: P-Slice Frame 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l264_v2:
H.264 stream: 320x240, zooming to 320x240 Hint: [Space] toggles pause; [Enter] advances to next frame Frame 1: I-Slice Frame 2: I-Slice Frame 3: I-Slice Frame 4: I-Slice Frame 5: I-Slice Frame 6: I-Slice Frame 7: I-Slice Frame 8: I-Slice Frame 9: I-Slice Frame 10: I-Slice Frame 11: I-Slice Frame 12: I-Slice Frame 13: I-Slice Frame 14: I-Slice Frame 15: I-Slice Frame 16: I-Slice Frame 17: I-Slice Frame 18: I-Slice Frame 19: I-Slice Frame 20: I-Slice Frame 21: I-Slice Frame 22: I-Slice Frame 23: I-Slice Frame 24: I-Slice Frame 25: I-Slice Frame 26: I-Slice Frame 27: I-Slice Frame 28: I-Slice Frame 29: I-Slice Frame 30: I-Slice Frame 31: I-Slice Frame 32: I-Slice Frame 33: I-Slice Frame 34: I-Slice Frame 35: I-Slice Frame 36: I-Slice Frame 37: I-Slice Frame 38: I-Slice Frame 39: I-Slice Frame 40: I-Slice Frame 41: I-Slice Frame 42: I-Slice Frame 43: I-Slice Frame 44: I-Slice Frame 45: I-Slice Frame 46: I-Slice Frame 47: I-Slice Frame 48: I-Slice Frame 49: I-Slice Frame 50: I-Slice Frame 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by , 8 years ago
| Attachment: | l264_cavlc_qualityfactor_28.7z added |
|---|
follow-up: 10 comment:9 by , 8 years ago
attached sample (v1 encoder) decodes (with artefacts) with:
mplayer -vc vssh264 -ao null -nosound l264_cavlc_qualityfactor_28.avi
and
ffmpeg -i l264_cavlc_qualityfactor_28.avi -vcodec copy out.h264 playh264 out.h264
so I would suggest to find out in which algo they made a mistake and support this crap
by , 8 years ago
| Attachment: | l264_v1_cavlc_qualityfactor_28.avi added |
|---|
comment:10 by , 8 years ago
Replying to ami_stuff:
attached sample (v1 encoder) decodes (with artefacts) with:
mplayer -vc vssh264 -ao null -nosound l264_cavlc_qualityfactor_28.aviand
ffmpeg -i l264_cavlc_qualityfactor_28.avi -vcodec copy out.h264 playh264 out.h264so I would suggest to find out in which algo they made a mistake and support this crap
It was actually file encoded by encoder V2, so just ignore this comment.
I attached file encoded with encoder V1 (l264_v1_cavlc_qualityfactor_28.avi)- plays with artefacts with:
ffmpeg -vcodec h264 -i l264_v1_cavlc_qualityfactor_28.avi -vcodec copy out.h264 playh264 out.h264
mplayer + vssh codec crashes.
follow-up: 12 comment:11 by , 8 years ago
Replying to ami_stuff:
here is dll alone, maybe could be used with mplayer for testing purposes
did you add it to mplayer? whats the codecs.conf entry for it? i keep getting decompression errors...
comment:12 by , 8 years ago
Note:
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with this version of codec:
https://web.archive.org/web/20040723075036/http://www.videosoftinc.com/pub/vssh3dec.exe
wmp crashes while decoding l264 file here
but when I repleace "vsshdsd.dll" file with file from:
https://www.mplayerhq.hu/MPlayer/releases/codecs/essential-20061022.tar.bz2
then l264 file decodes correctly (there are some small artefacts)
also this sample decodes correctly with vss codec as well:
https://samples.mplayerhq.hu/V-codecs/L264.avi