[FFmpeg-trac] #10430(swscale:new): Wrong yuv420p to rgb24 result on macOS m1 arm64

FFmpeg trac at avcodec.org
Fri Jun 23 15:34:22 EEST 2023


#10430: Wrong yuv420p to rgb24 result on macOS m1 arm64
---------------------------------+-----------------------------------
             Reporter:  lja      |                    Owner:  (none)
                 Type:  defect   |                   Status:  new
             Priority:  normal   |                Component:  swscale
              Version:  6.0      |               Resolution:
             Keywords:  yuv2rgb  |               Blocked By:
             Blocking:           |  Reproduced by developer:  0
Analyzed by developer:  0        |
---------------------------------+-----------------------------------
Comment (by lja):

 I tried mpv on both x86_64 and arm64 and the displayed RGB value is to be
 [101 100 100] (checking on the frame with Apple digital color meter if
 that matters).

 No, using `accurate_rnd` only does not fix it. (neither does using
 `full_chroma_int` only)

 log below on arm64
 {{{
 $ ffmpeg -v 9 -loglevel 99 -i sample_gray_100.avi -vf
 select='eq(n\,1)',showinfo -f rawvideo -pix_fmt rgb24 -sws_flags
 accurate_rnd+print_info - | hexdump
 ffmpeg version 6.0 Copyright (c) 2000-2023 the FFmpeg developers
   built with Apple clang version 14.0.3 (clang-1403.0.22.14.1)
   configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/6.0 --enable-shared
 --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-
 ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom
 --enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-
 libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-
 librubberband --enable-libsnappy --enable-libsrt --enable-libsvtav1
 --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-
 libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-
 libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma
 --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-
 libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-
 libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-
 libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox
 --enable-audiotoolbox --enable-neon
   libavutil      58.  2.100 / 58.  2.100
   libavcodec     60.  3.100 / 60.  3.100
   libavformat    60.  3.100 / 60.  3.100
   libavdevice    60.  1.100 / 60.  1.100
   libavfilter     9.  3.100 /  9.  3.100
   libswscale      7.  1.100 /  7.  1.100
   libswresample   4. 10.100 /  4. 10.100
   libpostproc    57.  1.100 / 57.  1.100
 Splitting the commandline.
 Reading option '-v' ... matched as option 'v' (set logging level) with
 argument '9'.
 Reading option '-loglevel' ... matched as option 'loglevel' (set logging
 level) with argument '99'.
 Reading option '-i' ... matched as input url with argument
 'sample_gray_100.avi'.
 Reading option '-vf' ... matched as option 'vf' (set video filters) with
 argument 'select=eq(n\,1),showinfo'.
 Reading option '-f' ... matched as option 'f' (force format) with argument
 'rawvideo'.
 Reading option '-pix_fmt' ... matched as option 'pix_fmt' (set pixel
 format) with argument 'rgb24'.
 Reading option '-sws_flags' ... matched as AVOption 'sws_flags' with
 argument 'accurate_rnd+print_info'.
 Reading option '-' ... matched as output url.
 Finished splitting the commandline.
 Parsing a group of options: global .
 Applying option v (set logging level) with argument 9.
 Successfully parsed a group of options.
 Parsing a group of options: input url sample_gray_100.avi.
 Successfully parsed a group of options.
 Opening an input file: sample_gray_100.avi.
 [NULL @ 0x144605410] Opening 'sample_gray_100.avi' for reading
 [file @ 0x600003f6a780] Setting default whitelist 'file,crypto,data'
 Probing avi score:100 size:2048
 [avi @ 0x144605410] Format avi probed with size=2048 and score=100
 [avi @ 0x600003f6a800] use odml:1
 [avi @ 0x144605410] pos:14 tag: tag=LIST size=0x11ec
 [avi @ 0x144605410] pos:18 list: tag=hdrl size=0x0
 [avi @ 0x144605410] pos:20 tag: tag=avih size=0x38
 [avi @ 0x144605410] pos:60 tag: tag=LIST size=0x1094
 [avi @ 0x144605410] pos:64 list: tag=strl size=0x0
 [avi @ 0x144605410] pos:6C tag: tag=strh size=0x38
 [avi @ 0x144605410] pos:74 strh: tag=vids size=0xffffffff
 [avi @ 0x144605410] 30 1 0
 [avi @ 0x144605410] pos:AC tag: tag=strf size=0x28
 [avi @ 0x144605410] pos:D4 video: tag=DIVX size=0x0
 [avi @ 0x144605410] pos:DC tag: tag=JUNK size=0x1018
 [avi @ 0x144605410] pos:10FC tag: tag=JUNK size=0x104
 [avi @ 0x144605410] pos:1208 tag: tag=LIST size=0x1a
 [avi @ 0x144605410] pos:120C list: tag=INFO size=0x0
 [avi @ 0x144605410] pos:122A tag: tag=JUNK size=0x3f8
 [avi @ 0x144605410] pos:162A tag: tag=LIST size=0x28c
 [avi @ 0x144605410] pos:162E list: tag=movi size=0x0
 [avi @ 0x144605410] movi end=18b6
 [avi @ 0x144605410] movi_end=0x18b6
 [avi @ 0x144605410] 0: tag=0x63643030 flags=0x10 pos=0x4 len=64/64
 cum_len=0
 [avi @ 0x144605410] 1: tag=0x63643030 flags=0x0 pos=0x4c len=8/8 cum_len=1
 [avi @ 0x144605410] 2: tag=0x63643030 flags=0x0 pos=0x5c len=8/8 cum_len=2
 [avi @ 0x144605410] 3: tag=0x63643030 flags=0x0 pos=0x6c len=8/8 cum_len=3
 [avi @ 0x144605410] 4: tag=0x63643030 flags=0x0 pos=0x7c len=8/8 cum_len=4
 [avi @ 0x144605410] 5: tag=0x63643030 flags=0x0 pos=0x8c len=8/8 cum_len=5
 [avi @ 0x144605410] 6: tag=0x63643030 flags=0x0 pos=0x9c len=8/8 cum_len=6
 [avi @ 0x144605410] 7: tag=0x63643030 flags=0x0 pos=0xac len=8/8 cum_len=7
 [avi @ 0x144605410] 8: tag=0x63643030 flags=0x0 pos=0xbc len=8/8 cum_len=8
 [avi @ 0x144605410] 9: tag=0x63643030 flags=0x0 pos=0xcc len=8/8 cum_len=9
 [avi @ 0x144605410] 10: tag=0x63643030 flags=0x0 pos=0xdc len=8/8
 cum_len=10
 [avi @ 0x144605410] 11: tag=0x63643030 flags=0x0 pos=0xec len=8/8
 cum_len=11
 [avi @ 0x144605410] 12: tag=0x63643030 flags=0x10 pos=0xfc len=64/64
 cum_len=12
 [avi @ 0x144605410] 13: tag=0x63643030 flags=0x0 pos=0x144 len=8/8
 cum_len=13
 [avi @ 0x144605410] 14: tag=0x63643030 flags=0x0 pos=0x154 len=8/8
 cum_len=14
 [avi @ 0x144605410] 15: tag=0x63643030 flags=0x0 pos=0x164 len=8/8
 cum_len=15
 [avi @ 0x144605410] 16: tag=0x63643030 flags=0x0 pos=0x174 len=8/8
 cum_len=16
 [avi @ 0x144605410] 17: tag=0x63643030 flags=0x0 pos=0x184 len=8/8
 cum_len=17
 [avi @ 0x144605410] 18: tag=0x63643030 flags=0x0 pos=0x194 len=8/8
 cum_len=18
 [avi @ 0x144605410] 19: tag=0x63643030 flags=0x0 pos=0x1a4 len=8/8
 cum_len=19
 [avi @ 0x144605410] 20: tag=0x63643030 flags=0x0 pos=0x1b4 len=8/8
 cum_len=20
 [avi @ 0x144605410] 21: tag=0x63643030 flags=0x0 pos=0x1c4 len=8/8
 cum_len=21
 [avi @ 0x144605410] 22: tag=0x63643030 flags=0x0 pos=0x1d4 len=8/8
 cum_len=22
 [avi @ 0x144605410] 23: tag=0x63643030 flags=0x0 pos=0x1e4 len=8/8
 cum_len=23
 [avi @ 0x144605410] 24: tag=0x63643030 flags=0x10 pos=0x1f4 len=64/64
 cum_len=24
 [avi @ 0x144605410] 25: tag=0x63643030 flags=0x0 pos=0x23c len=8/8
 cum_len=25
 [avi @ 0x144605410] 26: tag=0x63643030 flags=0x0 pos=0x24c len=8/8
 cum_len=26
 [avi @ 0x144605410] 27: tag=0x63643030 flags=0x0 pos=0x25c len=8/8
 cum_len=27
 [avi @ 0x144605410] 28: tag=0x63643030 flags=0x0 pos=0x26c len=8/8
 cum_len=28
 [avi @ 0x144605410] 29: tag=0x63643030 flags=0x0 pos=0x27c len=8/8
 cum_len=29
 [avi @ 0x144605410] Before avformat_find_stream_info() pos: 5678 bytes
 read:6814 seeks:0 nb_streams:1
 [mpeg4 @ 0x1446059d0] Format yuv420p chosen by get_format().
 [avi @ 0x144605410] All info found
 [avi @ 0x144605410] stream 0: start_time: 0 duration: 1
 [avi @ 0x144605410] format: start_time: 0 duration: 1 (estimate from
 stream) bitrate=54 kb/s
 [avi @ 0x144605410] After avformat_find_stream_info() pos: 5750 bytes
 read:6814 seeks:0 frames:1
 Input #0, avi, from 'sample_gray_100.avi':
   Metadata:
     software        : Lavf59.27.100
   Duration: 00:00:01.00, start: 0.000000, bitrate: 54 kb/s
   Stream #0:0, 1, 1/30: Video: mpeg4 (Simple Profile), 1 reference frame
 (DIVX / 0x58564944), yuv420p(left), 2x2 [SAR 1:1 DAR 1:1], 0/1, 30 fps, 30
 tbr, 30 tbn
 Successfully opened the file.
 Parsing a group of options: output url -.
 Applying option vf (set video filters) with argument
 select=eq(n\,1),showinfo.
 Applying option f (force format) with argument rawvideo.
 Applying option pix_fmt (set pixel format) with argument rgb24.
 Successfully parsed a group of options.
 Opening an output file: -.
 [pipe @ 0x600003a699d0] Setting default whitelist 'crypto,data'
 Successfully opened the file.
 detected 8 logical cores
 Stream mapping:
   Stream #0:0 -> #0:0 (mpeg4 (native) -> rawvideo (native))
 Press [q] to stop, [?] for help
 [vost#0:0/rawvideo @ 0x144607140] cur_dts is invalid [init:0 i_done:0
 finish:0] (this is harmless if it occurs once at the start per stream)
     Last message repeated 1 times
 [mpeg4 @ 0x144607fb0] Format yuv420p chosen by get_format().
 [vost#0:0/rawvideo @ 0x144607140] cur_dts is invalid [init:0 i_done:0
 finish:0] (this is harmless if it occurs once at the start per stream)
     Last message repeated 6 times
 [AVFilterGraph @ 0x600003568900] Setting 'expr' to value 'eq(n,1)'
 [graph 0 input from stream 0:0 @ 0x60000266c160] Setting 'video_size' to
 value '2x2'
 [graph 0 input from stream 0:0 @ 0x60000266c160] Setting 'pix_fmt' to
 value '0'
 [graph 0 input from stream 0:0 @ 0x60000266c160] Setting 'time_base' to
 value '1/30'
 [graph 0 input from stream 0:0 @ 0x60000266c160] Setting 'pixel_aspect' to
 value '1/1'
 [graph 0 input from stream 0:0 @ 0x60000266c160] Setting 'frame_rate' to
 value '30/1'
 [graph 0 input from stream 0:0 @ 0x60000266c160] w:2 h:2 pixfmt:yuv420p
 tb:1/30 fr:30/1 sar:1/1
 [format @ 0x60000266c2c0] Setting 'pix_fmts' to value 'rgb24'
 [auto_scale_0 @ 0x60000266c370] Setting 'sws_flags' to value
 'accurate_rnd+print_info'
 [auto_scale_0 @ 0x60000266c370] w:iw h:ih flags:'' interl:0
 [format @ 0x60000266c2c0] auto-inserting filter 'auto_scale_0' between the
 filter 'Parsed_showinfo_1' and the filter 'format'
 [AVFilterGraph @ 0x600003568900] query_formats: 5 queried, 4 merged, 1
 already done, 0 delayed
 [Parsed_showinfo_1 @ 0x60000266c0b0] config in time_base: 1/30,
 frame_rate: 30/1
 [Parsed_showinfo_1 @ 0x60000266c0b0] config out time_base: 0/0,
 frame_rate: 0/0
 SwScaler: reducing / aligning filtersize 1 -> 4
     Last message repeated 1 times
 SwScaler: reducing / aligning filtersize 1 -> 2
     Last message repeated 1 times
 [swscaler @ 0x148018000] [swscaler @ 0x148028000] bicubic scaler, from
 yuv420p to rgb24 using C
 [swscaler @ 0x148018000] [swscaler @ 0x148028000] 2x2 -> 2x2
 [swscaler @ 0x148018000] [swscaler @ 0x148028000] lum srcW=2 srcH=2 dstW=2
 dstH=2 xInc=65536 yInc=65536
 [swscaler @ 0x148018000] [swscaler @ 0x148028000] chr srcW=1 srcH=1 dstW=1
 dstH=2 xInc=65536 yInc=32768
 SwScaler: reducing / aligning filtersize 1 -> 4
     Last message repeated 1 times
 SwScaler: reducing / aligning filtersize 1 -> 2
     Last message repeated 1 times
 [swscaler @ 0x148018000] [swscaler @ 0x148038000] bicubic scaler, from
 yuv420p to rgb24 using C
 [swscaler @ 0x148018000] [swscaler @ 0x148038000] 2x2 -> 2x2
 [swscaler @ 0x148018000] [swscaler @ 0x148038000] lum srcW=2 srcH=2 dstW=2
 dstH=2 xInc=65536 yInc=65536
 [swscaler @ 0x148018000] [swscaler @ 0x148038000] chr srcW=1 srcH=1 dstW=1
 dstH=2 xInc=65536 yInc=32768
 SwScaler: reducing / aligning filtersize 1 -> 4
     Last message repeated 1 times
 SwScaler: reducing / aligning filtersize 1 -> 2
     Last message repeated 1 times
 [swscaler @ 0x148018000] [swscaler @ 0x148048000] bicubic scaler, from
 yuv420p to rgb24 using C
 [swscaler @ 0x148018000] [swscaler @ 0x148048000] 2x2 -> 2x2
 [swscaler @ 0x148018000] [swscaler @ 0x148048000] lum srcW=2 srcH=2 dstW=2
 dstH=2 xInc=65536 yInc=65536
 [swscaler @ 0x148018000] [swscaler @ 0x148048000] chr srcW=1 srcH=1 dstW=1
 dstH=2 xInc=65536 yInc=32768
 SwScaler: reducing / aligning filtersize 1 -> 4
     Last message repeated 1 times
 SwScaler: reducing / aligning filtersize 1 -> 2
     Last message repeated 1 times
 [swscaler @ 0x148018000] [swscaler @ 0x148058000] bicubic scaler, from
 yuv420p to rgb24 using C
 [swscaler @ 0x148018000] [swscaler @ 0x148058000] 2x2 -> 2x2
 [swscaler @ 0x148018000] [swscaler @ 0x148058000] lum srcW=2 srcH=2 dstW=2
 dstH=2 xInc=65536 yInc=65536
 [swscaler @ 0x148018000] [swscaler @ 0x148058000] chr srcW=1 srcH=1 dstW=1
 dstH=2 xInc=65536 yInc=32768
 SwScaler: reducing / aligning filtersize 1 -> 4
     Last message repeated 1 times
 SwScaler: reducing / aligning filtersize 1 -> 2
     Last message repeated 1 times
 [swscaler @ 0x148018000] [swscaler @ 0x148068000] bicubic scaler, from
 yuv420p to rgb24 using C
 [swscaler @ 0x148018000] [swscaler @ 0x148068000] 2x2 -> 2x2
 [swscaler @ 0x148018000] [swscaler @ 0x148068000] lum srcW=2 srcH=2 dstW=2
 dstH=2 xInc=65536 yInc=65536
 [swscaler @ 0x148018000] [swscaler @ 0x148068000] chr srcW=1 srcH=1 dstW=1
 dstH=2 xInc=65536 yInc=32768
 SwScaler: reducing / aligning filtersize 1 -> 4
     Last message repeated 1 times
 SwScaler: reducing / aligning filtersize 1 -> 2
     Last message repeated 1 times
 [swscaler @ 0x148018000] [swscaler @ 0x148078000] bicubic scaler, from
 yuv420p to rgb24 using C
 [swscaler @ 0x148018000] [swscaler @ 0x148078000] 2x2 -> 2x2
 [swscaler @ 0x148018000] [swscaler @ 0x148078000] lum srcW=2 srcH=2 dstW=2
 dstH=2 xInc=65536 yInc=65536
 [swscaler @ 0x148018000] [swscaler @ 0x148078000] chr srcW=1 srcH=1 dstW=1
 dstH=2 xInc=65536 yInc=32768
 SwScaler: reducing / aligning filtersize 1 -> 4
     Last message repeated 1 times
 SwScaler: reducing / aligning filtersize 1 -> 2
     Last message repeated 1 times
 [swscaler @ 0x148018000] [swscaler @ 0x148088000] bicubic scaler, from
 yuv420p to rgb24 using C
 [swscaler @ 0x148018000] [swscaler @ 0x148088000] 2x2 -> 2x2
 [swscaler @ 0x148018000] [swscaler @ 0x148088000] lum srcW=2 srcH=2 dstW=2
 dstH=2 xInc=65536 yInc=65536
 [swscaler @ 0x148018000] [swscaler @ 0x148088000] chr srcW=1 srcH=1 dstW=1
 dstH=2 xInc=65536 yInc=32768
 SwScaler: reducing / aligning filtersize 1 -> 4
     Last message repeated 1 times
 SwScaler: reducing / aligning filtersize 1 -> 2
     Last message repeated 1 times
 [swscaler @ 0x148018000] [swscaler @ 0x148098000] bicubic scaler, from
 yuv420p to rgb24 using C
 [swscaler @ 0x148018000] [swscaler @ 0x148098000] 2x2 -> 2x2
 [swscaler @ 0x148018000] [swscaler @ 0x148098000] lum srcW=2 srcH=2 dstW=2
 dstH=2 xInc=65536 yInc=65536
 [swscaler @ 0x148018000] [swscaler @ 0x148098000] chr srcW=1 srcH=1 dstW=1
 dstH=2 xInc=65536 yInc=32768
 SwScaler: reducing / aligning filtersize 1 -> 4
     Last message repeated 1 times
 SwScaler: reducing / aligning filtersize 1 -> 2
     Last message repeated 1 times
 [swscaler @ 0x148018000] [swscaler @ 0x1480a8000] bicubic scaler, from
 yuv420p to rgb24 using C
 [swscaler @ 0x148018000] [swscaler @ 0x1480a8000] 2x2 -> 2x2
 [swscaler @ 0x148018000] [swscaler @ 0x1480a8000] lum srcW=2 srcH=2 dstW=2
 dstH=2 xInc=65536 yInc=65536
 [swscaler @ 0x148018000] [swscaler @ 0x1480a8000] chr srcW=1 srcH=1 dstW=1
 dstH=2 xInc=65536 yInc=32768
 [auto_scale_0 @ 0x60000266c370] w:2 h:2 fmt:yuv420p sar:1/1 -> w:2 h:2
 fmt:rgb24 sar:1/1 flags:0x00041000
 [Parsed_select_0 @ 0x60000266c000] n:0.000000 pts:0.000000 t:0.000000
 key:1 interlace_type:P pict_type:I scene:nan -> select:0.000000
 select_out:-1
 [vost#0:0/rawvideo @ 0x144607140] cur_dts is invalid [init:0 i_done:0
 finish:0] (this is harmless if it occurs once at the start per stream)
 [Parsed_select_0 @ 0x60000266c000] n:1.000000 pts:1.000000 t:0.033333
 key:0 interlace_type:P pict_type:P scene:nan -> select:1.000000
 select_out:0
 [Parsed_showinfo_1 @ 0x60000266c0b0] n:   0 pts:      1 pts_time:0.0333333
 duration:      1 duration_time:0.0333333 pos:     5758 fmt:yuv420p sar:1/1
 s:2x2 i:P iskey:0 type:P checksum:08AC0298 plane_checksum:[03FC0198
 00800080 00800080] mean:[102 128 128] stdev:[0.0 0.0 0.0]
 [Parsed_showinfo_1 @ 0x60000266c0b0] color_range:unknown
 color_space:unknown color_primaries:unknown color_trc:unknown
 Output #0, rawvideo, to 'pipe:':
   Metadata:
     software        : Lavf59.27.100
     encoder         : Lavf60.3.100
   Stream #0:0, 0, 1/30: Video: rawvideo, 1 reference frame (RGB[24] /
 0x18424752), rgb24(pc, gbr/unknown/unknown, progressive, left), 2x2 (0x0)
 [SAR 1:1 DAR 1:1], 0/1, q=2-31, 2 kb/s, 30 fps, 30 tbn
     Metadata:
       encoder         : Lavc60.3.100 rawvideo
 [vost#0:0/rawvideo @ 0x144607140] Not duplicating 1 initial frames
 [Parsed_select_0 @ 0x60000266c000] n:2.000000 pts:2.000000 t:0.066667
 key:0 interlace_type:P pict_type:P scene:nan -> select:0.000000
 select_out:-1
 [Parsed_select_0 @ 0x60000266c000] n:3.000000 pts:3.000000 t:0.100000
 key:0 interlace_type:P pict_type:P scene:nan -> select:0.000000
 select_out:-1
 [Parsed_select_0 @ 0x60000266c000] n:4.000000 pts:4.000000 t:0.133333
 key:0 interlace_type:P pict_type:P scene:nan -> select:0.000000
 select_out:-1
 [Parsed_select_0 @ 0x60000266c000] n:5.000000 pts:5.000000 t:0.166667
 key:0 interlace_type:P pict_type:P scene:nan -> select:0.000000
 select_out:-1
 [Parsed_select_0 @ 0x60000266c000] n:6.000000 pts:6.000000 t:0.200000
 key:0 interlace_type:P pict_type:P scene:nan -> select:0.000000
 select_out:-1
 [Parsed_select_0 @ 0x60000266c000] n:7.000000 pts:7.000000 t:0.233333
 key:0 interlace_type:P pict_type:P scene:nan -> select:0.000000
 select_out:-1
 [Parsed_select_0 @ 0x60000266c000] n:8.000000 pts:8.000000 t:0.266667
 key:0 interlace_type:P pict_type:P scene:nan -> select:0.000000
 select_out:-1
 [Parsed_select_0 @ 0x60000266c000] n:9.000000 pts:9.000000 t:0.300000
 key:0 interlace_type:P pict_type:P scene:nan -> select:0.000000
 select_out:-1
 [Parsed_select_0 @ 0x60000266c000] n:10.000000 pts:10.000000 t:0.333333
 key:0 interlace_type:P pict_type:P scene:nan -> select:0.000000
 select_out:-1
 [Parsed_select_0 @ 0x60000266c000] n:11.000000 pts:11.000000 t:0.366667
 key:0 interlace_type:P pict_type:P scene:nan -> select:0.000000
 select_out:-1
 [Parsed_select_0 @ 0x60000266c000] n:12.000000 pts:12.000000 t:0.400000
 key:1 interlace_type:P pict_type:I scene:nan -> select:0.000000
 select_out:-1
 [Parsed_select_0 @ 0x60000266c000] n:13.000000 pts:13.000000 t:0.433333
 key:0 interlace_type:P pict_type:P scene:nan -> select:0.000000
 select_out:-1
 [Parsed_select_0 @ 0x60000266c000] n:14.000000 pts:14.000000 t:0.466667
 key:0 interlace_type:P pict_type:P scene:nan -> select:0.000000
 select_out:-1
 [Parsed_select_0 @ 0x60000266c000] n:15.000000 pts:15.000000 t:0.500000
 key:0 interlace_type:P pict_type:P scene:nan -> select:0.000000
 select_out:-1
 [Parsed_select_0 @ 0x60000266c000] n:16.000000 pts:16.000000 t:0.533333
 key:0 interlace_type:P pict_type:P scene:nan -> select:0.000000
 select_out:-1
 [Parsed_select_0 @ 0x60000266c000] n:17.000000 pts:17.000000 t:0.566667
 key:0 interlace_type:P pict_type:P scene:nan -> select:0.000000
 select_out:-1
 [Parsed_select_0 @ 0x60000266c000] n:18.000000 pts:18.000000 t:0.600000
 key:0 interlace_type:P pict_type:P scene:nan -> select:0.000000
 select_out:-1
 [Parsed_select_0 @ 0x60000266c000] n:19.000000 pts:19.000000 t:0.633333
 key:0 interlace_type:P pict_type:P scene:nan -> select:0.000000
 select_out:-1
 [Parsed_select_0 @ 0x60000266c000] n:20.000000 pts:20.000000 t:0.666667
 key:0 interlace_type:P pict_type:P scene:nan -> select:0.000000
 select_out:-1
 EOF in input file 0
 Terminating demuxer thread 0
 [Parsed_select_0 @ 0x60000266c000] n:21.000000 pts:21.000000 t:0.700000
 key:0 interlace_type:P pict_type:P scene:nan -> select:0.000000
 select_out:-1
 [Parsed_select_0 @ 0x60000266c000] n:22.000000 pts:22.000000 t:0.733333
 key:0 interlace_type:P pict_type:P scene:nan -> select:0.000000
 select_out:-1
 [Parsed_select_0 @ 0x60000266c000] n:23.000000 pts:23.000000 t:0.766667
 key:0 interlace_type:P pict_type:P scene:nan -> select:0.000000
 select_out:-1
 [Parsed_select_0 @ 0x60000266c000] n:24.000000 pts:24.000000 t:0.800000
 key:1 interlace_type:P pict_type:I scene:nan -> select:0.000000
 select_out:-1
 [Parsed_select_0 @ 0x60000266c000] n:25.000000 pts:25.000000 t:0.833333
 key:0 interlace_type:P pict_type:P scene:nan -> select:0.000000
 select_out:-1
 [Parsed_select_0 @ 0x60000266c000] n:26.000000 pts:26.000000 t:0.866667
 key:0 interlace_type:P pict_type:P scene:nan -> select:0.000000
 select_out:-1
 [Parsed_select_0 @ 0x60000266c000] n:27.000000 pts:27.000000 t:0.900000
 key:0 interlace_type:P pict_type:P scene:nan -> select:0.000000
 select_out:-1
 [Parsed_select_0 @ 0x60000266c000] n:28.000000 pts:28.000000 t:0.933333
 key:0 interlace_type:P pict_type:P scene:nan -> select:0.000000
 select_out:-1
 [Parsed_select_0 @ 0x60000266c000] n:29.000000 pts:29.000000 t:0.966667
 key:0 interlace_type:P pict_type:P scene:nan -> select:0.000000
 select_out:-1
 [out_0_0 @ 0x60000266c210] EOF on sink link out_0_0:default.
 No more output streams to write to, finishing.
 [out#0/rawvideo @ 0x6000024683c0] All streams finished
 [out#0/rawvideo @ 0x6000024683c0] Terminating muxer thread
 [AVIOContext @ 0x144607b80] Statistics: 12 bytes written, 0 seeks, 1
 writeouts
 frame=    1 fps=0.0 q=-0.0 Lsize=       0kB time=00:00:00.03 bitrate=
 2.9kbits/s speed=13.1x
 video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.000000%
 Input file #0 (sample_gray_100.avi):
   Input stream #0:0 (video): 30 packets read (408 bytes); 30 frames
 decoded;
   Total: 30 packets (408 bytes) demuxed
 Output file #0 (pipe:):
   Output stream #0:0 (video): 1 frames encoded; 1 packets muxed (12
 bytes);
   Total: 1 packets (12 bytes) muxed
 30 frames successfully decoded, 0 decoding errors
 [AVIOContext @ 0x144605210] Statistics: 6814 bytes read, 0 seeks
 0000000 6262 6262 6262 6262 6262 6262
 000000c
 }}}
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10430#comment:2>
FFmpeg <https://ffmpeg.org>
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