[FFmpeg-user] Chroma problem converting mp4 to prores
David Cecco
dave at bit.st
Fri Mar 3 03:20:49 EET 2017
Sorry about the slow response, that has fixed the issue, thanks chronek!
The file still seems a bit soft in quality though. I have tried turning the -qscale right down to 1 and adjusting the bits_per_mb up to 2400 and the picture improved but it still wasn’t 100%, but the file grew to 2.5x the size.
I tried with the prores codec as opposed to the prores_ks codec and it was better, but again not 100% interestingly the file size didn’t grow when using the bits_per_mb with prores.
Here is an example output:
$ ffmpeg -y -i "5082197_Soccer Enrique Upd.mp4" -acodec pcm_s16le -vcodec prores_ks -profile:v 1 -vf scale=interl=1 -sws_flags full_chroma_inp+full_chroma_int -copytb -1 "5082197_Soccer Enrique Upd.mov"
ffmpeg version 3.2.2-tessus Copyright (c) 2000-2016 the FFmpeg developers
built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl --enable-libass --enable-libbluray --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzmq --enable-version3 --disable-ffplay --disable-indev=qtkit --disable-indev=x11grab_xcb
libavutil 55. 34.100 / 55. 34.100
libavcodec 57. 64.101 / 57. 64.101
libavformat 57. 56.100 / 57. 56.100
libavdevice 57. 1.100 / 57. 1.100
libavfilter 6. 65.100 / 6. 65.100
libswscale 4. 2.100 / 4. 2.100
libswresample 2. 3.100 / 2. 3.100
libpostproc 54. 1.100 / 54. 1.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '5082197_Soccer Enrique Upd.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp42mp41
creation_time : 2017-03-01T23:52:21.000000Z
Duration: 00:02:15.83, start: 0.000000, bitrate: 10170 kb/s
Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv), 1920x1080 [SAR 1:1 DAR 16:9], 9915 kb/s, 25 fps, 25 tbr, 50k tbn, 50 tbc (default)
Metadata:
creation_time : 2017-03-01T23:52:22.000000Z
handler_name : Alias Data Handler
encoder : AVC Coding
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 253 kb/s (default)
Metadata:
creation_time : 2017-03-01T23:52:22.000000Z
handler_name : Alias Data Handler
Output #0, mov, to '5082197_Soccer Enrique Upd.mov':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp42mp41
encoder : Lavf57.56.100
Stream #0:0(eng): Video: prores (prores_ks) (apcs / 0x73637061), yuv422p10le, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 25 fps, 12800 tbn, 25 tbc (default)
Metadata:
creation_time : 2017-03-01T23:52:22.000000Z
handler_name : Alias Data Handler
encoder : Lavc57.64.101 prores_ks
Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, stereo, s16, 1536 kb/s (default)
Metadata:
creation_time : 2017-03-01T23:52:22.000000Z
handler_name : Alias Data Handler
encoder : Lavc57.64.101 pcm_s16le
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> prores (prores_ks))
Stream #0:1 -> #0:1 (aac (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
frame= 3394 fps=7.7 q=-0.0 Lsize= 1522742kB time=00:02:15.80 bitrate=91852.6kbits/s speed=0.31x
video:1497227kB audio:25464kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.003344%
Thanks!
dave
> Try -sws_flags full_chroma_inp+full_chroma_int W dniu 2017-02-23 o 23:05, Dave pisze: > Hi guys,
> >
> > I am having a issue where all the clips that I convert have a chroma
> > problem. The red is saturated on all clips and there are red horizontal
> > lines in the chroma.
> >
> > $ ffmpeg -y -i 5079162_NHL\ Marleau.mp4 -acodec pcm_s16le -vcodec prores_ks
> > -profile:v 1 -copytb -1 -vf yadif=1 -qscale:v 10 mp4-yadif1-q10.mov
> > I thought this might be the chroma bug but I have experimented with a
> > couple of different options replacing yadif=1 with the following:
> >
> > -vf scale=out_color_matrix=bt709
> > -pix_fmt yuv422p10le
> > -vf colormatrix=bt601:bt709
> > -vf yadif
> >
> > The yadif=1 option provides the closest results and specifying multiple
> > options seems to make it worse not better. The problem is more obvious on
> > a broadcast monitor.
> >
> > We are also having a problem where the converted clips are 1 frame shorter
> > than the original, missing a black frame at the start of the clip.
> >
> > Here are the details of the clip I am trying to convert:
> >
> > $ ffprobe -v error -show_format -show_streams 5079162_NHL\ Marleau.mp4
> > [STREAM]
> > index=0
> > codec_name=h264
> > codec_long_name=H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
> > profile=Main
> > codec_type=video
> > codec_time_base=1/50
> > codec_tag_string=avc1
> > codec_tag=0x31637661
> > width=1920
> > height=1080
> > coded_width=1920
> > coded_height=1080
> > has_b_frames=1
> > sample_aspect_ratio=1:1
> > display_aspect_ratio=16:9
> > pix_fmt=yuv420p
> > level=41
> > color_range=tv
> > color_space=unknown
> > color_transfer=unknown
> > color_primaries=unknown
> > chroma_location=left
> > field_order=unknown
> > timecode=N/A
> > refs=1
> > is_avc=true
> > nal_length_size=4
> > id=N/A
> > r_frame_rate=25/1
> > avg_frame_rate=25/1
> > time_base=1/50000
> > start_pts=0
> > start_time=0.000000
> > duration_ts=2354000
> > duration=47.080000
> > bit_rate=9081205
> > max_bit_rate=N/A
> > bits_per_raw_sample=8
> > nb_frames=1177
> > nb_read_frames=N/A
> > nb_read_packets=N/A
> > DISPOSITION:default=1
> > DISPOSITION:dub=0
> > DISPOSITION:original=0
> > DISPOSITION:comment=0
> > DISPOSITION:lyrics=0
> > DISPOSITION:karaoke=0
> > DISPOSITION:forced=0
> > DISPOSITION:hearing_impaired=0
> > DISPOSITION:visual_impaired=0
> > DISPOSITION:clean_effects=0
> > DISPOSITION:attached_pic=0
> > DISPOSITION:timed_thumbnails=0
> > TAG:creation_time=2017-02-03T23:55:00.000000Z
> > TAG:language=eng
> > TAG:handler_name=Alias Data Handler
> > TAG:encoder=AVC Coding
> > [/STREAM]
> > [STREAM]
> > index=1
> > codec_name=aac
> > codec_long_name=AAC (Advanced Audio Coding)
> > profile=LC
> > codec_type=audio
> > codec_time_base=1/48000
> > codec_tag_string=mp4a
> > codec_tag=0x6134706d
> > sample_fmt=fltp
> > sample_rate=48000
> > channels=2
> > channel_layout=stereo
> > bits_per_sample=0
> > id=N/A
> > r_frame_rate=0/0
> > avg_frame_rate=0/0
> > time_base=1/48000
> > start_pts=0
> > start_time=0.000000
> > duration_ts=2259840
> > duration=47.080000
> > bit_rate=253262
> > max_bit_rate=283875
> > bits_per_raw_sample=N/A
> > nb_frames=2210
> > nb_read_frames=N/A
> > nb_read_packets=N/A
> > DISPOSITION:default=1
> > DISPOSITION:dub=0
> > DISPOSITION:original=0
> > DISPOSITION:comment=0
> > DISPOSITION:lyrics=0
> > DISPOSITION:karaoke=0
> > DISPOSITION:forced=0
> > DISPOSITION:hearing_impaired=0
> > DISPOSITION:visual_impaired=0
> > DISPOSITION:clean_effects=0
> > DISPOSITION:attached_pic=0
> > DISPOSITION:timed_thumbnails=0
> > TAG:creation_time=2017-02-03T23:55:01.000000Z
> > TAG:language=eng
> > TAG:handler_name=Alias Data Handler
> > [/STREAM]
> > [FORMAT]
> > filename=5079162_NHL Marleau.mp4
> > nb_streams=2
> > nb_programs=0
> > format_name=mov,mp4,m4a,3gp,3g2,mj2
> > format_long_name=QuickTime / MOV
> > start_time=0.000000
> > duration=47.146600
> > size=54956371
> > bit_rate=9325189
> > probe_score=100
> > TAG:major_brand=mp42
> > TAG:minor_version=0
> > TAG:compatible_brands=mp42mp41
> > TAG:creation_time=2017-02-03T23:54:57.000000Z
> > [/FORMAT]
> > _______________________________________________
> > ffmpeg-user mailing list
> > ffmpeg-user at ffmpeg.org
> > http://ffmpeg.org/mailman/listinfo/ffmpeg-user
> >
> > To unsubscribe, visit link above, or email
> > ffmpeg-user-request at ffmpeg.org with subject "unsubscribe".
More information about the ffmpeg-user
mailing list