[FFmpeg-trac] #1280(undetermined:new): Loss of alpha with yadif filter (bgra->yuv420 conv inserted instead of bgra->yuva420p)

[FFmpeg]

#1280: Loss of alpha with yadif filter (bgra->yuv420 conv inserted instead of
bgra->yuva420p)
-------------------------------------+-------------------------------------
             Reporter:  ronag        |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:  lavfi        |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 M:\_media>ffmpeg -i wipe.mov -vf yadif=1:-1 wipe2.mov
 ffmpeg version N-40301-gc1fe2db Copyright (c) 2000-2012 the FFmpeg
 developers
   built on May  3 2012 11:44:06 with gcc 4.6.3
   configuration: --enable-gpl --enable-version3 --disable-w32threads
 --enable-ru
 ntime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-
 libass
  --enable-libcelt --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable
 -libfreetype --enable-libgsm --enable-libmp3lame --enable-libnut --enable-
 libope
 njpeg --enable-librtmp --enable-libschroedinger --enable-libspeex
 --enable-libth
 eora --enable-libutvideo --enable-libvo-aacenc --enable-libvo-amrwbenc
 --enable-
 libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-
 libxvid --e
 nable-zlib
   libavutil      51. 49.100 / 51. 49.100
   libavcodec     54. 17.101 / 54. 17.101
   libavformat    54.  3.100 / 54.  3.100
   libavdevice    53.  4.100 / 53.  4.100
   libavfilter     2. 72.104 /  2. 72.104
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0. 11.100 /  0. 11.100
   libpostproc    52.  0.100 / 52.  0.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'wipe.mov':
   Metadata:
     major_brand     : qt
     minor_version   : 537199360
     compatible_brands: qt
     creation_time   : 2010-10-19 15:24:10
   Duration: 00:00:01.24, start: 0.000000, bitrate: 8185 kb/s
     Stream #0:0(eng): Video: qtrle (rle  / 0x20656C72), bgra, 720x576,
 6485 kb/s
 , SAR 512:351 DAR 640:351, 25 fps, 25 tbr, 25 tbn, 25 tbc
     Metadata:
       creation_time   : 2010-10-19 15:24:10
       handler_name    : Apples aliasdatahanterare
     Stream #0:1(eng): Audio: pcm_s16be (twos / 0x736F7774), 48000 Hz, 2
 channels
 , s16, 1536 kb/s
     Metadata:
       creation_time   : 2010-10-19 15:24:10
       handler_name    : Apples aliasdatahanterare
 [buffer @ 0000000001e7ae70] w:720 h:576 pixfmt:bgra tb:1/1000000
 sar:512/351 sws
 _param:flags=2
 [yadif @ 0000000001e7af30] mode:1 parity:-1 auto_enable:0
 [yadif @ 0000000001e7af30] auto-inserting filter 'auto-inserted scale 0'
 between
  the filter 'src' and the filter 'Parsed_yadif_0'
 [scale @ 0000000001e7af90] w:720 h:576 '''fmt:bgra sar:512/351 -> w:720
 h:576 fmt:y
 uv420p''' sar:512/351 flags:0x4
 [libx264 @ 0000000001ec9d20] using SAR=512/351
 [libx264 @ 0000000001ec9d20] using cpu capabilities: MMX2 SSE2Fast SSSE3
 FastShu
 ffle SSE4.2 AVX
 [libx264 @ 0000000001ec9d20] profile High, level 3.0
 [libx264 @ 0000000001ec9d20] 264 - core 120 r2164 da19765 - H.264/MPEG-4
 AVC cod
 ec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options:
 cabac=1 r
 ef=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00
 mixed
 _ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11
 fast_pski
 p=1 chroma_qp_offset=-2 threads=12 sliced_threads=0 nr=0 decimate=1
 interlaced=0
  bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1
 b_bias=0 di
 rect=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40
 intra
 _refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0
 qpmax=69
 qpstep=4 ip_ratio=1.40 aq=1:1.00
 Guessed Channel Layout for  Input Stream #0.1 : stereo
 strptime() unavailable on this system, cannot convert the date string.
 Output #0, mov, to 'wipe2.mov':
   Metadata:
     major_brand     : qt
     minor_version   : 537199360
     compatible_brands: qt
     creation_time   : 2010-10-19 15:24:10
     encoder         : Lavf54.3.100
     Stream #0:0(eng): Video: h264 (avc1 / 0x31637661), yuv420p, 720x576
 [SAR 512
 :351 DAR 640:351], q=-1--1, 25 tbn, 25 tbc
     Metadata:
       creation_time   : 2010-10-19 15:24:10
       handler_name    : Apples aliasdatahanterare
     Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo,
 s16, 128
  kb/s
     Metadata:
       creation_time   : 2010-10-19 15:24:10
       handler_name    : Apples aliasdatahanterare
 Stream mapping:
   Stream #0:0 -> #0:0 (qtrle -> libx264)
   Stream #0:1 -> #0:1 (pcm_s16be -> libvo_aacenc)

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1280>
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