[FFmpeg-trac] #5627(undetermined:new): Artifacts when encoding to dv file with telecine filter enabled
FFmpeg
trac at avcodec.org
Thu Jun 9 19:09:19 CEST 2016
#5627: Artifacts when encoding to dv file with telecine filter enabled
-------------------------------------+-------------------------------------
Reporter: RaljOneed | Type: defect
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
Encoding to dv file with telecine filter enabled causes blocking artifacts
in output video.
Problem disappears when -threads 1 option is added.
How to reproduce:
{{{
ffmpeg started on 2016-06-09 at 18:50:48
Report written to "ffmpeg-20160609-185048.log"
Command line:
./ffmpeg-N-80237-g9d8664d -report -i swamp.2.mkv -vf
"telecine=first_field=b:pattern=112222" swamp.2.dv
ffmpeg version N-80237-g9d8664d Copyright (c) 2000-2016 the FFmpeg
developers
built with gcc 5.3.1 (Ubuntu 5.3.1-14ubuntu2.1) 20160413
configuration: --prefix=/home/xxxxxx/Programy/ffmpeg/ffmpeg_build --pkg-
config-flags=--static --extra-
cflags=-I/home/xxxxxx/Programy/ffmpeg/ffmpeg_build/include --extra-
ldflags=-L/home/xxxxxx/Programy/ffmpeg/ffmpeg_build/lib
--bindir=/home/xxxxxx/Programy/ffmpeg/bin --enable-gpl --enable-libass
--enable-libfreetype --enable-libopus --enable-libvorbis --enable-nonfree
--enable-x11grab --enable-libsoxr --disable-ffserver --disable-ffplay
--disable-ffprobe
libavutil 55. 24.100 / 55. 24.100
libavcodec 57. 45.100 / 57. 45.100
libavformat 57. 37.101 / 57. 37.101
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 46.101 / 6. 46.101
libswscale 4. 1.100 / 4. 1.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
Splitting the commandline.
Reading option '-report' ... matched as option 'report' (generate a
report) with argument '1'.
Reading option '-i' ... matched as input file with argument 'swamp.2.mkv'.
Reading option '-vf' ... matched as option 'vf' (set video filters) with
argument 'telecine=first_field=b:pattern=112222'.
Reading option 'swamp.2.dv' ... matched as output file.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option report (generate a report) with argument 1.
Successfully parsed a group of options.
Parsing a group of options: input file swamp.2.mkv.
Successfully parsed a group of options.
Opening an input file: swamp.2.mkv.
[file @ 0x3f01b60] Setting default whitelist 'file,crypto'
[matroska,webm @ 0x3f013c0] Format matroska,webm probed with size=2048 and
score=100
st:0 removing common factor 1000000 from timebase
[matroska,webm @ 0x3f013c0] Before avformat_find_stream_info() pos: 937
bytes read:32768 seeks:0
[matroska,webm @ 0x3f013c0] parser not found for codec ffv1, packets or
times may be invalid.
[matroska,webm @ 0x3f013c0] parser not found for codec ffv1, packets or
times may be invalid.
[matroska,webm @ 0x3f013c0] All info found
[matroska,webm @ 0x3f013c0] After avformat_find_stream_info() pos: 57101
bytes read:65536 seeks:0 frames:1
Input #0, matroska,webm, from 'swamp.2.mkv':
Metadata:
ENCODER : Lavf57.25.100
Duration: 00:00:04.00, start: 0.000000, bitrate: 15126 kb/s
Stream #0:0, 1, 1/1000: Video: ffv1 (FFV1 / 0x31564646), yuv420p,
720x576, SAR 64:45 DAR 16:9, 30 fps, 30 tbr, 1k tbn, 1k tbc (default)
Metadata:
ENCODER : Lavc57.24.102 ffv1
DURATION : 00:00:04.000000000
Successfully opened the file.
Parsing a group of options: output file swamp.2.dv.
Applying option vf (set video filters) with argument
telecine=first_field=b:pattern=112222.
Successfully parsed a group of options.
Opening an output file: swamp.2.dv.
[file @ 0x3f06f20] Setting default whitelist 'file,crypto'
Successfully opened the file.
detected 4 logical cores
[Parsed_telecine_0 @ 0x3f07e00] Setting 'first_field' to value 'b'
[Parsed_telecine_0 @ 0x3f07e00] Setting 'pattern' to value '112222'
[Parsed_telecine_0 @ 0x3f07e00] Telecine pattern 112222 yields up to 1
frames per frame, pts advance factor: 12/10
[graph 0 input from stream 0:0 @ 0x3f074a0] Setting 'video_size' to value
'720x576'
[graph 0 input from stream 0:0 @ 0x3f074a0] Setting 'pix_fmt' to value '0'
[graph 0 input from stream 0:0 @ 0x3f074a0] Setting 'time_base' to value
'1/1000'
[graph 0 input from stream 0:0 @ 0x3f074a0] Setting 'pixel_aspect' to
value '64/45'
[graph 0 input from stream 0:0 @ 0x3f074a0] Setting 'sws_param' to value
'flags=2'
[graph 0 input from stream 0:0 @ 0x3f074a0] Setting 'frame_rate' to value
'30/1'
[graph 0 input from stream 0:0 @ 0x3f074a0] w:720 h:576 pixfmt:yuv420p
tb:1/1000 fr:30/1 sar:64/45 sws_param:flags=2
[format @ 0x3f089e0] compat: called with args=[yuv411p|yuv422p|yuv420p]
[format @ 0x3f089e0] Setting 'pix_fmts' to value 'yuv411p|yuv422p|yuv420p'
[AVFilterGraph @ 0x3f073c0] query_formats: 4 queried, 3 merged, 0 already
done, 0 delayed
[Parsed_telecine_0 @ 0x3f07e00] FPS: 30/1 -> 25/1
[Parsed_telecine_0 @ 0x3f07e00] TB: 1/1000 -> 3/2500
[dv @ 0x3f05900] Using AVStream.codec to pass codec parameters to muxers
is deprecated, use AVStream.codecpar instead.
Output #0, dv, to 'swamp.2.dv':
Metadata:
encoder : Lavf57.37.101
Stream #0:0, 0, 1/25: Video: dvvideo, yuv420p, 720x576 [SAR 64:45 DAR
16:9], q=2-31, 200 kb/s, 25 fps, 25 tbn, 25 tbc (default)
Metadata:
DURATION : 00:00:04.000000000
encoder : Lavc57.45.100 dvvideo
Stream mapping:
Stream #0:0 -> #0:0 (ffv1 (native) -> dvvideo (native))
Press [q] to stop, [?] for help
cur_dts is invalid (this is harmless if it occurs once at the start per
stream)
cur_dts is invalid (this is harmless if it occurs once at the start per
stream)
cur_dts is invalid (this is harmless if it occurs once at the start per
stream)
cur_dts is invalid (this is harmless if it occurs once at the start per
stream)
cur_dts is invalid (this is harmless if it occurs once at the start per
stream)
Clipping frame in rate conversion by 0.000008
cur_dts is invalid (this is harmless if it occurs once at the start per
stream)
Clipping frame in rate conversion by 0.009987
cur_dts is invalid (this is harmless if it occurs once at the start per
stream)
cur_dts is invalid (this is harmless if it occurs once at the start per
stream)
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
frame= 80 fps=0.0 q=-0.0 size= 10828kB time=00:00:03.08
bitrate=28800.0kbits/s speed=6.16x
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
Clipping frame in rate conversion by 0.009987
[output stream 0:0 @ 0x3f08680] EOF on sink link output stream
0:0:default.
No more output streams to write to, finishing.
frame= 100 fps=0.0 q=-0.0 Lsize= 14062kB time=00:00:04.00
bitrate=28800.0kbits/s speed= 6.2x
video:14062kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 0.000000%
Input file #0 (swamp.2.mkv):
Input stream #0:0 (video): 120 packets read (7556965 bytes); 120 frames
decoded;
Total: 120 packets (7556965 bytes) demuxed
Output file #0 (swamp.2.dv):
Output stream #0:0 (video): 100 frames encoded; 100 packets muxed
(14400000 bytes);
Total: 100 packets (14400000 bytes) muxed
120 frames successfully decoded, 0 decoding errors
[AVIOContext @ 0x3f06fc0] Statistics: 0 seeks, 500 writeouts
[AVIOContext @ 0x3f09f00] Statistics: 7563052 bytes read, 0 seeks
}}}
Patches should be submitted to the ffmpeg-devel mailing list and not this
bug tracker.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/5627>
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