[FFmpeg-user] interlaced result when transcoding from h264
Henk D. Schoneveld
belcampo at zonnet.nl
Thu Jan 9 23:08:13 CET 2014
On 09 Jan 2014, at 22:38, Mitja Pirih <mitja at alternet.si> wrote:
> Hi,
>
> I am transcoding a h264 DVB-T stream but I am not satisfied with the
> results. The picture looks like "interlaced" on fast moving scenes.
> Here I posted (sorry for long post) some ffprobe data of the original
> (input) stream and output stream. What are my options to get a better
> picture?
AFAIK XBMC can deinterlace these streams.
Another question, why do you reencode ? I think XBMC is able to play the original stream, or am I wrong ?
>
> I am transcoding with ffserver, with this config:
> <Stream stream001.mkv>
> Feed stream001.ffm
> NoLoop
> Format matroska
> VideoCodec libx264
> VideoFrameRate 25
> VideoBitRate 1524
> VideoSize 720x576
> AVOptionVideo preset ultrafast
> AVOptionVideo tune zerolatency
> AVOptionVideo flags +global_header
> AVOptionVideo crf 26
> AVOptionVideo me_range 16
> AVOptionVideo qdiff 4
> AVOptionVideo qmin 10
> AVOptionVideo qmax 51
> AudioCodec aac
> Strict -2
> AudioBitRate 128
> AudioChannels 2
> AudioSampleRate 44100
> AVOptionAudio flags +global_header
> </Stream>
>
>
>
> Input stream:
>
> ffprobe -i udp://239.100.0.0:1234
> Input #0, mpegts, from 'udp://239.100.0.0:1234':
> Duration: N/A, start: 77357.106233, bitrate: 192 kb/s
> Program 1
> Metadata:
> service_name : SLO1
> service_provider: RTV SLOVENIJA
> Stream #0:0[0x78]: Video: h264 (Main) ([27][0][0][0] / 0x001B),
> yuv420p(tv, bt470bg), 720x576 [SAR 16:11 DAR 20:11], 25 fps, 50 tbr, 90k
> tbn, 50 tbc
> Stream #0:1[0x79](slv): Audio: mp2 ([4][0][0][0] / 0x0004), 48000
> Hz, stereo, s16p, 192 kb/s
> Stream #0:2[0x7a](slv): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006)
> Stream #0:3[0x7b]: Audio: mp1 ([6][0][0][0] / 0x0006), 0 channels,
> s16p
> Unsupported codec with id 94215 for input stream 2
> [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=[27][0][0][0]
> codec_tag=0x001b
> width=720
> height=576
> has_b_frames=2
> sample_aspect_ratio=16:11
> display_aspect_ratio=20:11
> pix_fmt=yuv420p
> level=30
> timecode=N/A
> id=0x78
> r_frame_rate=50/1
> avg_frame_rate=25/1
> time_base=1/90000
> start_pts=6962200658
> start_time=77357.785089
> duration_ts=N/A
> duration=N/A
> bit_rate=N/A
> nb_frames=N/A
> nb_read_frames=N/A
> nb_read_packets=N/A
> extradata=
> 00000000: 0000 0001 0910 0000 0001 274d 401e 9a62 ..........'M at ..b
> 00000010: 0168 48b0 4420 a0a0 a800 0003 0008 0000 .hH.D ..........
> 00000020: 0301 94a0 0000 0001 28ee 3c80 ........(.<.
>
> DISPOSITION:default=0
> 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
> [/STREAM]
> [STREAM]
> index=1
> codec_name=mp2
> codec_long_name=MP2 (MPEG audio layer 2)
> profile=unknown
> codec_type=audio
> codec_time_base=1/48000
> codec_tag_string=[4][0][0][0]
> codec_tag=0x0004
> sample_fmt=s16p
> sample_rate=48000
> channels=2
> channel_layout=stereo
> bits_per_sample=0
> id=0x79
> r_frame_rate=0/0
> avg_frame_rate=0/0
> time_base=1/90000
> start_pts=6962151448
> start_time=77357.238311
> duration_ts=N/A
> duration=N/A
> bit_rate=192000
> nb_frames=N/A
> nb_read_frames=N/A
> nb_read_packets=N/A
> extradata=
>
> DISPOSITION:default=0
> 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
> TAG:language=slv
> [/STREAM]
> [STREAM]
> index=2
> codec_name=unknown
> codec_long_name=unknown
> profile=unknown
> codec_type=subtitle
> codec_time_base=1/90000
> codec_tag_string=[6][0][0][0]
> codec_tag=0x0006
> width=N/A
> height=N/A
> id=0x7a
> r_frame_rate=0/0
> avg_frame_rate=0/0
> time_base=1/90000
> start_pts=6962139561
> start_time=77357.106233
> duration_ts=N/A
> duration=N/A
> bit_rate=N/A
> nb_frames=N/A
> nb_read_frames=N/A
> nb_read_packets=N/A
> extradata=
>
> DISPOSITION:default=0
> 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
> TAG:language=slv
> [/STREAM]
> [STREAM]
> index=3
> codec_name=mp1
> codec_long_name=MP1 (MPEG audio layer 1)
> profile=unknown
> codec_type=audio
> codec_time_base=1/0
> codec_tag_string=[6][0][0][0]
> codec_tag=0x0006
> sample_fmt=s16p
> sample_rate=0
> channels=0
> channel_layout=unknown
> bits_per_sample=0
> id=0x7b
> r_frame_rate=0/0
> avg_frame_rate=0/0
> time_base=1/90000
> start_pts=6962139561
> start_time=77357.106233
> duration_ts=N/A
> duration=N/A
> bit_rate=N/A
> nb_frames=N/A
> nb_read_frames=N/A
> nb_read_packets=N/A
> extradata=
>
> DISPOSITION:default=0
> 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
> [/STREAM]
> [FORMAT]
> filename=udp://239.100.0.0:1234
> nb_streams=4
> nb_programs=1
> format_name=mpegts
> format_long_name=MPEG-TS (MPEG-2 Transport Stream)
> start_time=77357.106233
> duration=N/A
> size=N/A
> bit_rate=192000
> probe_score=100
> [/FORMAT]
>
>
>
> Output stream:
>
> # ffprobe -i http://172.31.254.210:8090/stream001.mkv -show_data
> -show_format -show_streams
> ffprobe version git-2014-01-03-6275d93 Copyright (c) 2007-2014 the
> FFmpeg developers
> built on Jan 3 2014 14:42:16 with gcc 4.8 (Ubuntu/Linaro
> 4.8.1-10ubuntu9)
> configuration: --prefix=/root/ffmpeg_build
> --extra-cflags=-I/root/ffmpeg_build/include
> --extra-ldflags=-L/root/ffmpeg_build/lib --bindir=/root/bin
> --extra-libs=-ldl --enable-gpl --enable-libass --enable-libfdk-aac
> --enable-libmp3lame --enable-libopus --enable-libtheora
> --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree
> libavutil 52. 59.100 / 52. 59.100
> libavcodec 55. 47.100 / 55. 47.100
> libavformat 55. 22.102 / 55. 22.102
> libavdevice 55. 5.102 / 55. 5.102
> libavfilter 4. 0.103 / 4. 0.103
> libswscale 2. 5.101 / 2. 5.101
> libswresample 0. 17.104 / 0. 17.104
> libpostproc 52. 3.100 / 52. 3.100
> Input #0, matroska,webm, from 'http://172.31.254.210:8090/stream001.mkv':
> Metadata:
> ENCODER : Lavf55.22.102
> Duration: N/A, start: 1389300845.049000, bitrate: N/A
> Stream #0:0: Audio: aac, 44100 Hz, stereo, fltp (default)
> Stream #0:1: Video: h264 (High), yuv420p, 720x576 [SAR 16:11 DAR
> 20:11], SAR 1:1 DAR 5:4, 25 fps, 25 tbr, 1k tbn, 50 tbc (default)
> [STREAM]
> index=0
> codec_name=aac
> codec_long_name=AAC (Advanced Audio Coding)
> profile=unknown
> codec_type=audio
> codec_time_base=1/44100
> codec_tag_string=[0][0][0][0]
> codec_tag=0x0000
> sample_fmt=fltp
> sample_rate=44100
> channels=2
> channel_layout=stereo
> bits_per_sample=0
> id=N/A
> r_frame_rate=0/0
> avg_frame_rate=0/0
> time_base=1/1000
> start_pts=1389300845049
> start_time=1389300845.049000
> duration_ts=N/A
> duration=N/A
> bit_rate=N/A
> nb_frames=N/A
> nb_read_frames=N/A
> nb_read_packets=N/A
> extradata=
> 00000000: 1210 ..
>
> 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
> [/STREAM]
> [STREAM]
> index=1
> codec_name=h264
> codec_long_name=H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
> profile=High
> codec_type=video
> codec_time_base=1/50
> codec_tag_string=[0][0][0][0]
> codec_tag=0x0000
> width=720
> height=576
> has_b_frames=0
> sample_aspect_ratio=1:1
> display_aspect_ratio=5:4
> pix_fmt=yuv420p
> level=30
> timecode=N/A
> id=N/A
> r_frame_rate=25/1
> avg_frame_rate=25/1
> time_base=1/1000
> start_pts=1389300845080
> start_time=1389300845.080000
> duration_ts=N/A
> duration=N/A
> bit_rate=N/A
> nb_frames=N/A
> nb_read_frames=N/A
> nb_read_packets=N/A
> extradata=
> 00000000: 0164 001e ffe1 0019 6764 001e acb4 05a0 .d......gd......
> 00000010: 9360 8200 0003 0002 0000 0300 641e 2c5d .`..........d.,]
> 00000020: 4001 0005 68cf 32c8 b0 @...h.2..
>
> 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
> [/STREAM]
> [FORMAT]
> filename=http://172.31.254.210:8090/stream001.mkv
> nb_streams=2
> nb_programs=0
> format_name=matroska,webm
> format_long_name=Matroska / WebM
> start_time=1389300845.049000
> duration=N/A
> size=N/A
> bit_rate=N/A
> probe_score=100
> TAG:ENCODER=Lavf55.22.102
> [/FORMAT]
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