#4990: fieldmatch+decimate duplicate frames with yuv
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Reporter: nullb | Owner:
Type: defect | Status: reopened
Priority: normal | Component: avfilter
Version: git-master | Resolution:
Keywords: pullup | Blocked By:
Blocking: | Reproduced by developer: 1
Analyzed by developer: 0 |
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Comment (by cehoyos):
In the first block of five frames, the fifth frame should be dropped, but
the first frame is dropped instead:
{{{
$ ffmpeg -loglevel 50 -i fieldmatched.avi -vf decimate -f null -
ffmpeg version N-81500-ga648391 Copyright (c) 2000-2016 the FFmpeg
developers
built with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl
libavutil 55. 29.100 / 55. 29.100
libavcodec 57. 54.101 / 57. 54.101
libavformat 57. 48.101 / 57. 48.101
libavdevice 57. 0.102 / 57. 0.102
libavfilter 6. 58.100 / 6. 58.100
libswscale 4. 1.100 / 4. 1.100
libswresample 2. 1.100 / 2. 1.100
libpostproc 54. 0.100 / 54. 0.100
Splitting the commandline.
Reading option '-loglevel' ... matched as option 'loglevel' (set logging
level) with argument '50'.
Reading option '-i' ... matched as input file with argument
'fieldmatched.avi'.
Reading option '-vf' ... matched as option 'vf' (set video filters) with
argument 'decimate'.
Reading option '-f' ... matched as option 'f' (force format) with argument
'null'.
Reading option '-' ... matched as output file.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option loglevel (set logging level) with argument 50.
Successfully parsed a group of options.
Parsing a group of options: input file fieldmatched.avi.
Successfully parsed a group of options.
Opening an input file: fieldmatched.avi.
[file @ 0x1fcbd20] Setting default whitelist 'file,crypto'
[avi @ 0x1fcb400] Format avi probed with size=2048 and score=100
[avi @ 0x1fcbda0] use odml:1
[avi @ 0x1fcb400] Before avformat_find_stream_info() pos: 5720 bytes
read:98952 seeks:4 nb_streams:1
[avi @ 0x1fcb400] parser not found for codec ffv1, packets or times may be
invalid.
Last message repeated 1 times
[avi @ 0x1fcb400] All info found
[avi @ 0x1fcb400] After avformat_find_stream_info() pos: 635993 bytes
read:696457 seeks:4 frames:1
Input #0, avi, from 'fieldmatched.avi':
Metadata:
encoder : Lavf57.20.100
Duration: 00:00:00.67, start: 0.000000, bitrate: 123059 kb/s
Stream #0:0, 1, 1001/30000: Video: ffv1, 1 reference frame (FFV1 /
0x31564646), yuv420p, 1920x1080, 0/1, 129457 kb/s, 29.97 fps, 29.97 tbr,
29.97 tbn, 29.97 tbc
Successfully opened the file.
Parsing a group of options: output file -.
Applying option vf (set video filters) with argument decimate.
Applying option f (force format) with argument null.
Successfully parsed a group of options.
Opening an output file: -.
Successfully opened the file.
detected 8 logical cores
[graph 0 input from stream 0:0 @ 0x1fd0060] Setting 'video_size' to value
'1920x1080'
[graph 0 input from stream 0:0 @ 0x1fd0060] Setting 'pix_fmt' to value '0'
[graph 0 input from stream 0:0 @ 0x1fd0060] Setting 'time_base' to value
'1001/30000'
[graph 0 input from stream 0:0 @ 0x1fd0060] Setting 'pixel_aspect' to
value '0/1'
[graph 0 input from stream 0:0 @ 0x1fd0060] Setting 'sws_param' to value
'flags=2'
[graph 0 input from stream 0:0 @ 0x1fd0060] Setting 'frame_rate' to value
'30000/1001'
[graph 0 input from stream 0:0 @ 0x1fd0060] w:1920 h:1080 pixfmt:yuv420p
tb:1001/30000 fr:30000/1001 sar:0/1 sws_param:flags=2
[AVFilterGraph @ 0x1fd0220] query_formats: 3 queried, 2 merged, 0 already
done, 0 delayed
[Parsed_decimate_0 @ 0x1fd1100] FPS: 30000/1001 -> 24000/1001
[null @ 0x1fce1c0] Using AVStream.codec to pass codec parameters to muxers
is deprecated, use AVStream.codecpar instead.
Output #0, null, to 'pipe:':
Metadata:
encoder : Lavf57.48.101
Stream #0:0, 0, 1001/24000: Video: wrapped_avframe, 1 reference frame,
yuv420p, 1920x1080, 0/1, q=2-31, 200 kb/s, 23.98 fps, 23.98 tbn, 23.98 tbc
Metadata:
encoder : Lavc57.54.101 wrapped_avframe
Stream mapping:
Stream #0:0 -> #0:0 (ffv1 (native) -> wrapped_avframe (native))
Press [q] to stop, [?] for help
cur_dts is invalid (this is harmless if it occurs once at the start per
stream)
Last message repeated 11 times
[Parsed_decimate_0 @ 0x1fd1100] 1/5 frame drop:
[Parsed_decimate_0 @ 0x1fd1100] #1: totdiff=7fffffffffffffff
maxbdiff=7fffffffffffffff sc [DROP]
[Parsed_decimate_0 @ 0x1fd1100] #2: totdiff=00ca660c maxbdiff=000130d8
[Parsed_decimate_0 @ 0x1fd1100] #3: totdiff=015715f3 maxbdiff=00022e12
[Parsed_decimate_0 @ 0x1fd1100] #4: totdiff=00c6e459 maxbdiff=0001df5b
[Parsed_decimate_0 @ 0x1fd1100] #5: totdiff=000d4fce maxbdiff=00000d05
lowest
[Parsed_decimate_0 @ 0x1fd1100] 1/5 frame drop:
[Parsed_decimate_0 @ 0x1fd1100] #1: totdiff=0093eda5 maxbdiff=0001b481
[Parsed_decimate_0 @ 0x1fd1100] #2: totdiff=0089d968 maxbdiff=00019ebc
[Parsed_decimate_0 @ 0x1fd1100] #3: totdiff=0080a999 maxbdiff=00017223
[Parsed_decimate_0 @ 0x1fd1100] #4: totdiff=007c98d0 maxbdiff=00018261
[Parsed_decimate_0 @ 0x1fd1100] #5: totdiff=00099bf0 maxbdiff=00000f6b
lowest [DROP]
[Parsed_decimate_0 @ 0x1fd1100] 1/5 frame drop:
[Parsed_decimate_0 @ 0x1fd1100] #1: totdiff=0079855c maxbdiff=0001ab54
[Parsed_decimate_0 @ 0x1fd1100] #2: totdiff=008401c0 maxbdiff=0001bf8e
[Parsed_decimate_0 @ 0x1fd1100] #3: totdiff=007db8bb maxbdiff=0001ade7
[Parsed_decimate_0 @ 0x1fd1100] #4: totdiff=007f553c maxbdiff=0001806d
[Parsed_decimate_0 @ 0x1fd1100] #5: totdiff=0010b14d maxbdiff=00001d9a
lowest [DROP]
[Parsed_decimate_0 @ 0x1fd1100] 1/5 frame drop:
[Parsed_decimate_0 @ 0x1fd1100] #1: totdiff=007b5d19 maxbdiff=0001691f
[Parsed_decimate_0 @ 0x1fd1100] #2: totdiff=0076c12d maxbdiff=00012a61
[Parsed_decimate_0 @ 0x1fd1100] #3: totdiff=006cc5ab maxbdiff=00014404
[Parsed_decimate_0 @ 0x1fd1100] #4: totdiff=005b2dca maxbdiff=0000e7ce
[Parsed_decimate_0 @ 0x1fd1100] #5: totdiff=000fe7bc maxbdiff=0000150d
lowest [DROP]
[Parsed_decimate_0 @ 0x1fd1100] 1/5 frame drop:
[output stream 0:0 @ 0x1fd1d20] EOF on sink link output stream
0:0:default.
No more output streams to write to, finishing.
frame= 16 fps=0.0 q=-0.0 Lsize=N/A time=00:00:00.70 bitrate=N/A
speed=2.44x
video:8kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: unknown
Input file #0 (fieldmatched.avi):
Input stream #0:0 (video): 20 packets read (10258995 bytes); 20 frames
decoded;
Total: 20 packets (10258995 bytes) demuxed
Output file #0 (pipe:):
Output stream #0:0 (video): 16 frames encoded; 16 packets muxed (7808
bytes);
Total: 16 packets (7808 bytes) muxed
20 frames successfully decoded, 0 decoding errors
[AVIOContext @ 0x1fd4040] Statistics: 10325678 bytes read, 4 seeks
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/4990#comment:5>
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