[FFmpeg-trac] #2190(avcodec:new): Lossless codecs don't preserve interlacing

[FFmpeg]

#2190: Lossless codecs don't preserve interlacing
---------------------------------+--------------------------------------
             Reporter:  ulatekh  |                     Type:  defect
               Status:  new      |                 Priority:  normal
            Component:  avcodec  |                  Version:  git-master
             Keywords:           |               Blocked By:
             Blocking:           |  Reproduced by developer:  0
Analyzed by developer:  0        |
---------------------------------+--------------------------------------
 Summary of the bug:

 I first noticed this in ffmpeg 0.10.6 from the Fedora Core 17 yum repos,
 but I reproduced it with the latest version from git too.

 I'm trying to package a raw YUV video file in some sort of container so
 that kdenlive will accept it.  The video is interlaced (miniDV camcorder
 source).  But every attempt to package it produces a file that says it's
 progressive video!

 How to reproduce:

 "head -1 clip.yuv" outputs "YUV4MPEG2 W720 H480 F30000:1001 Ib A10:11
 C411" -- notice the bottom-field-first interlacing.  All the lossless
 codecs I tried (huffyuv, ffvhuff, ffv1, and even rawvideo) produced
 progressive output.

 "ffmpeg -i clip.yuv -vcodec huffyuv clip.avi" followed by "ffmpeg -i
 clip.avi -vcodec rawvideo -f yuv4mpegpipe - | head -1" outputs "YUV4MPEG2
 W720 H480 F30000:1001 Ip A10:11 C422 XYSCSS=422"

 "ffmpeg -i clip.yuv -vcodec ffvhuff clip.avi" followed by "ffmpeg -i
 clip.avi -vcodec rawvideo -f yuv4mpegpipe - | head -1" outputs "YUV4MPEG2
 W720 H480 F30000:1001 Ip A10:11 C422 XYSCSS=422"

 "ffmpeg -i clip.yuv -vcodec ffv1 clip.avi" followed by "ffmpeg -i clip.avi
 -vcodec rawvideo -f yuv4mpegpipe - | head -1" outputs "YUV4MPEG2 W720 H480
 F30000:1001 Ip A10:11 C411 XYSCSS=411"

 "ffmpeg -i clip.yuv -vcodec rawvideo clip.avi" followed by "ffmpeg -i
 clip.avi -vcodec rawvideo -f yuv4mpegpipe - | head -1" outputs "YUV4MPEG2
 W720 H480 F30000:1001 Ip A10:11 C411 XYSCSS=411"

 Here's the header from ffmpeg when it's run:

 ffmpeg version 1.1.git Copyright (c) 2000-2013 the FFmpeg developers
   built on Jan 25 2013 19:23:47 with gcc 4.7.2 (GCC) 20120921 (Red Hat
 4.7.2-2)
   configuration: --prefix=/usr --bindir=/usr/bin
 --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib
 --mandir=/usr/share/man --arch=athlon --extra-cflags='-O2 -g -pipe -Wall
 -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-
 size=4 -m32 -march=athlon -fasynchronous-unwind-tables' --enable-bzlib
 --disable-crystalhd --enable-gnutls --enable-libass --enable-libcdio
 --enable-libcelt --enable-libdc1394 --disable-indev=jack --enable-
 libfreetype --enable-libgsm --enable-libmp3lame --enable-openal --enable-
 libopenjpeg --enable-libpulse --enable-librtmp --enable-libschroedinger
 --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libv4l2
 --enable-libvpx --enable-libx264 --enable-libxvid --enable-x11grab
 --enable-avfilter --enable-postproc --enable-pthreads --disable-static
 --enable-shared --enable-gpl --disable-debug --disable-stripping
 --shlibdir=/usr/lib --cpu=athlon --enable-runtime-cpudetect
   libavutil      52. 16.100 / 52. 16.100
   libavcodec     54. 91.100 / 54. 91.100
   libavformat    54. 61.104 / 54. 61.104
   libavdevice    54.  3.102 / 54.  3.102
   libavfilter     3. 33.101 /  3. 33.101
   libswscale      2.  2.100 /  2.  2.100
   libswresample   0. 17.102 /  0. 17.102
   libpostproc    52.  2.100 / 52.  2.100

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2190>
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