Ticket #102 (closed enhancement: fixed)
add support for "Brooktree YUV 411 Raw (Y41P)" codec
| Reported by: | ami_stuff | Owned by: | |
|---|---|---|---|
| Priority: | wish | Component: | avcodec |
| Version: | git-master | Keywords: | y41p roundup |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | yes | |
| Analyzed by developer: | no |
Description
issue 1123
http://roundup.libav.org/file329/AVI-Y41P_MP3.avi
seems to be supported by old xanim
http://xanim.polter.net/files/xanim2801.tar.gz
----------------------------------------------------------------
2.80.0
----------------------------------------------------------------
+ Added support for the following AVI codecs:
DMB1,BW10,Y41P,I420,VYUY,V422,YV12,Y41P,YUY2,IV41,IV50,H261,M263
+ Added support for the following QT codecs:
MJPA, 8BPS, IV41, IV50
+ Added support for QT3.0 compressed headers.
+ Added support for video decompression dlls.
+ Fixed problems with X11 remote displays of different endianness.
+ Minor bugs fixes.
C:\>ffmpeg -i AVI-Y41P_MP3.avi
FFmpeg version SVN-r18938, Copyright (c) 2000-2009 Fabrice Bellard, et al.
configuration: --enable-memalign-hack --prefix=/mingw --cross-prefix=i686-ming
w32- --cc=ccache-i686-mingw32-gcc --target-os=mingw32 --arch=i686 --cpu=i686 --e
nable-avisynth --enable-gpl --enable-zlib --enable-bzlib --enable-libgsm --enabl
e-libfaad --enable-pthreads --enable-libvorbis --enable-libtheora --enable-libsp
eex --enable-libmp3lame --enable-libopenjpeg --enable-libxvid --enable-libschroe
dinger --enable-libx264
libavutil 50. 3. 0 / 50. 3. 0
libavcodec 52.29. 0 / 52.29. 0
libavformat 52.33. 0 / 52.33. 0
libavdevice 52. 2. 0 / 52. 2. 0
libswscale 0. 7. 1 / 0. 7. 1
built on May 25 2009 04:04:51, gcc: 4.2.4
Input #0, avi, from 'AVI-Y41P_MP3.avi':
Duration: 00:00:06.00, start: 0.000000, bitrate: 7368 kb/s
Stream #0.0: Video: Y41P / 0x50313459, 192x128, 23.81 tbr, 23.81 tbn, 23.81
tbc
Stream #0.1: Audio: mp3, 11025 Hz, mono, s16, 24 kb/s
At least one output file must be specified
Attachments
-
patchticket102.diff
(1.1 KB) -
added by cehoyos 20 months ago.
Change History
comment:1 Changed 20 months ago by cehoyos
- Priority changed from normal to wish
- Status changed from new to open
- Version changed from unspecified to git-master
- Component changed from undetermined to swscale
- Reproduced by developer set
comment:2 Changed 17 months ago by cehoyos
- Keywords y41p added
- Status changed from open to closed
- Resolution set to fixed
Implemented by Paul B Mahol.
(Do samples exist where width % 8 != 0?)
comment:4 Changed 17 months ago by ami_stuff
FOURCC code: 'y41p'
Driver name: btvvc32.drv
Format restrictions:
Didth must be multiple of 8
Valid depths: 16, 24
FOURCC code: 'bt20'
Driver name: btvvc32.drv
Format restrictions:
Didth must be multiple of 8
Valid depths: 16, 24
comment:5 follow-up: ↓ 6 Changed 17 months ago by richardpl
bt20 is compressed codec, so if first need some RE.
Is Didth typo?
Valid depths is just flag set in avi?
comment:6 in reply to: ↑ 5 Changed 17 months ago by ami_stuff
Is Didth typo?
Yes.
Valid depths is just flag set in avi?
This is what VirtualDub? display as an info for compressor, but whatever I select 16bit or 24bit as an "output format for compressor" I get files with the same size and the files plays ok with FFplay.
comment:7 Changed 17 months ago by richardpl
OT, about encoding y41p with ffmpeg:
btvvc32.drv expect the "Depth" byte in avi to be 0x0c (12) but ffmpeg avi muxer sets this byte to 0x18 (24) so y41p muxed in avi with ffmpeg are causing mplayer to crash when using bt411 codec (btvvc32.drv).
Once you change that byte to 0x0c in hex editor files plays fine with mplayer -vfc bt411
