FFmpeg 命令行工具ffmpeg

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参考技术A 注：先cd到文件所在地文件夹也是可以的，直接使用文件名

1.列出ffmpeg支持的所有格式：

2.剪切一段媒体文件，可以使音频或者视频文件：

3.将一个媒体文件切割成多个媒体文件：

4.提取一个视频文件中的音频文件：

5.提取一个视频文件中的视频文件:

6.从MP4文件中抽取视频流导出为裸H264数据：

7.使用AAC音频数据和H264视频数据生成MP4文件：

注意：使用上面生成的aac和h264文件生成新的mp4文件，视频播放速度会变快，暂时不知道怎么解决，终端的警告：

8.对音频文件的编码格式做转换：

9_1.从WAV音频文件中导出PCM裸数据：

9_2.PCM数据转WAV：

9_3.PCM数据转MP3:

10.重新编码视频文件，复制音频流，同时封装到MP4格式的文件中：

11.将一个MP4格式的视频转换成gif格式的动图：

12.将一个视频的画面部分生成图片，比如要分析一个视频里面的每一帧都是什么内容的时候：

13.使用一组图片生成一个gif：

14.使用音量效果器，改变一个音频媒体文件中的音量：

15.淡入效果器的使用：

16：淡出效果器的使用：

17：混音（将多路声音进行合并）

18：对声音进行变速但不变调效果器的使用：

19_1：为视频添加水印：

19_2：去掉视频水印：

20：视频提亮效果器的使用：

21：为视频增加对比度效果：

22：视频旋转效果器的使用：

23：视频裁剪效果器的使用：

24：将一张RGBA格式表示的数据转换成JPEG格式图片：

25：将一张YUV格式表示的数据转换成JPEG格式图片：

26：将一段视频推送到流媒体服务器上：

27：将流媒体服务器上的流dump到本地：

28：将两个音频文件以两路流到形式封装到一个文件中，比如在k歌的应用场景中，原唱伴唱实时切换的场景下，可以使用一个文件包含两路流，一路是伴奏流，一路是原唱流：

29：将输入的视频的分辨率改成960*540

音视频处理 ffmpeg初级开发 命令行工具-实用命令

参考链接

目录

  • 1，help命令使用
    • 1.1 ffmpeg命令的语法结构
    • 1.2 获取详细的help信息
    • 1.3 打印帮助或者支持能力的信息
    • 1.4 全局选项
    • 1.5 文件选项
    • 1.6 视频/音频/字幕相关选项
  • 2，流选择选项
  • 3，视频封装解封装
    • 3.1 视频格式转换
    • 3.2 分离/合并视频音频流
    • 3.3 截取视频片段
    • 3.4 视频转换为m3u8格式
    • 3.5 把视频文件推送到rtmp服务器
    • 3.6 对视频进行切片
  • 4，视频解码编码
    • 4.1 视频截图
    • 4.2 视频/图片尺寸修改
    • 4.3 分离视频的YUV通道分量
    • 4.4 图片序列与视频的互相转换
  • 5，视频filter
    • 5.1 视频加水印overlay
    • 5.2 视频旋转transpose
    • 5.3 调色3DLutFilter
    • 5.4 图像/视频转换成黑白的hue
    • 5.5 裁剪视频crop
    • 5.6 视频尺寸缩放scale
    • 5.7 视频中去水印delogo
    • 5.8 给视频或图像加上黑边pad
    • 5.9 计算psnr/ssim
    • 5.10 视频按时间拼接
    • 5.11 视频左右拼接
    • 5.12 打印视频帧的一些信息showinfo
    • 5.13 生成纯色的图片
    • 5.14 打印帧序号/pts到视频帧水印drawtext
  • 6，音频解码编码     PCM原始数据和WAV格式转换
  • 7，音频filter             倍速atempo
  • 8，字幕相关
    • 8.1 字幕文件转换
    • 8.2 集成字幕到视频文件
  • 9，ffplay命令
    • 9.1 ffplay播放yuv视频数据
    • 9.2 ffplay播放PCM音频数据
    • 9.3 ffplay播放音频并显示波形图
    • 9.4 ffplay指定显示宽高
  • 10，ffprobe命令
    • 10.1 ffprobe查看媒体文件的信息
    • 10.2 ffprobe查看时间戳
  • 11，其他
    • 11.1 ffmpeg或ffplay 打开 DEBUG 日志输出
    • 11.2 FFmpeg命令日志输出到文件
    • 11.3 打印支持DirectShow的设备列表

1，help命令使用

  • ffmpeg -help
  • 终端打印帮助信息
  • 打印ffmpeg以及各个模块的版本信息
chy-cpabe@ubuntu:~/ffmpeg-source/ffmpeg$ ffmpeg -help
ffmpeg version N-106797-g580fb6a8c9 Copyright (c) 2000-2022 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)
  configuration: --prefix=/home/chy-cpabe/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/chy-cpabe/ffmpeg_build/include --extra-ldflags=-L/home/chy-cpabe/ffmpeg_build/lib --extra-libs='-lpthread -lm' --ld=g++ --bindir=/home/chy-cpabe/bin --enable-gpl --enable-gnutls --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libsvtav1 --enable-libdav1d --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree
  libavutil      57. 24.101 / 57. 24.101
  libavcodec     59. 27.100 / 59. 27.100
  libavformat    59. 23.100 / 59. 23.100
  libavdevice    59.  6.100 / 59.  6.100
  libavfilter     8. 37.100 /  8. 37.100
  libswscale      6.  6.100 /  6.  6.100
  libswresample   4.  6.100 /  4.  6.100
  libpostproc    56.  5.100 / 56.  5.100
Hyper fast Audio and Video encoder
usage: ffmpeg [options] [[infile options] -i infile]... [outfile options] outfile...

Getting help:
    -h      -- print basic options
    -h long -- print more options
    -h full -- print all options (including all format and codec specific options, very long)
    -h type=name -- print all options for the named decoder/encoder/demuxer/muxer/filter/bsf/protocol
    See man ffmpeg for detailed description of the options.

Print help / information / capabilities:
-L                  show license
-h topic            show help
-? topic            show help
-help topic         show help
--help topic        show help
-version            show version
-buildconf          show build configuration
-formats            show available formats
-muxers             show available muxers
-demuxers           show available demuxers
-devices            show available devices
-codecs             show available codecs
-decoders           show available decoders
-encoders           show available encoders
-bsfs               show available bit stream filters
-protocols          show available protocols
-filters            show available filters
-pix_fmts           show available pixel formats
-layouts            show standard channel layouts
-sample_fmts        show available audio sample formats
-dispositions       show available stream dispositions
-colors             show available color names
-sources device     list sources of the input device
-sinks device       list sinks of the output device
-hwaccels           show available HW acceleration methods

Global options (affect whole program instead of just one file):
-loglevel loglevel  set logging level
-v loglevel         set logging level
-report             generate a report
-max_alloc bytes    set maximum size of a single allocated block
-y                  overwrite output files
-n                  never overwrite output files
-ignore_unknown     Ignore unknown stream types
-filter_threads     number of non-complex filter threads
-filter_complex_threads  number of threads for -filter_complex
-stats              print progress report during encoding
-max_error_rate maximum error rate  ratio of decoding errors (0.0: no errors, 1.0: 100% errors) above which ffmpeg returns an error instead of success.
-vol volume         change audio volume (256=normal)

Per-file main options:
-f fmt              force format
-c codec            codec name
-codec codec        codec name
-pre preset         preset name
-map_metadata outfile[,metadata]:infile[,metadata]  set metadata information of outfile from infile
-t duration         record or transcode "duration" seconds of audio/video
-to time_stop       record or transcode stop time
-fs limit_size      set the limit file size in bytes
-ss time_off        set the start time offset
-sseof time_off     set the start time offset relative to EOF
-seek_timestamp     enable/disable seeking by timestamp with -ss
-timestamp time     set the recording timestamp ('now' to set the current time)
-metadata string=string  add metadata
-program title=string:st=number...  add program with specified streams
-target type        specify target file type ("vcd", "svcd", "dvd", "dv" or "dv50" with optional prefixes "pal-", "ntsc-" or "film-")
-apad               audio pad
-frames number      set the number of frames to output
-filter filter_graph  set stream filtergraph
-filter_script filename  read stream filtergraph description from a file
-reinit_filter      reinit filtergraph on input parameter changes
-discard            discard
-disposition        disposition

Video options:
-vframes number     set the number of video frames to output
-r rate             set frame rate (Hz value, fraction or abbreviation)
-fpsmax rate        set max frame rate (Hz value, fraction or abbreviation)
-s size             set frame size (WxH or abbreviation)
-aspect aspect      set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)
-vn                 disable video
-vcodec codec       force video codec ('copy' to copy stream)
-timecode hh:mm:ss[:;.]ff  set initial TimeCode value.
-pass n             select the pass number (1 to 3)
-vf filter_graph    set video filters
-ab bitrate         audio bitrate (please use -b:a)
-b bitrate          video bitrate (please use -b:v)
-dn                 disable data

Audio options:
-aframes number     set the number of audio frames to output
-aq quality         set audio quality (codec-specific)
-ar rate            set audio sampling rate (in Hz)
-ac channels        set number of audio channels
-an                 disable audio
-acodec codec       force audio codec ('copy' to copy stream)
-vol volume         change audio volume (256=normal)
-af filter_graph    set audio filters

Subtitle options:
-s size             set frame size (WxH or abbreviation)
-sn                 disable subtitle
-scodec codec       force subtitle codec ('copy' to copy stream)
-stag fourcc/tag    force subtitle tag/fourcc
-fix_sub_duration   fix subtitles duration
-canvas_size size   set canvas size (WxH or abbreviation)
-spre preset        set the subtitle options to the indicated preset

1.1 ffmpeg命令的语法结构

  • ffmpeg [options] [[infile options] -i infile]... [outfile options] outfile...
  • options：对输入和输出均有影响的选项
  • [[infile options] -i infile]  指定输入选项和输入文件  ... 表示可以包含多个输入文件
  • [outfile options] outfile 指定输出选项和输出文件 ... 表示可以包含多个输出文件

1.2 获取详细的help信息

Getting help:
    -h      -- print basic options
    -h long -- print more options
    -h full -- print all options (including all format and codec specific options, very long)
    -h type=name -- print all options for the named decoder/encoder/demuxer/muxer/filter/bsf/protocol
    See man ffmpeg for detailed description of the options.
  •  -h long: 打印更多的选项参数
  • -h full: 打印所有的选项参数，包括所有针对于format和codec的选项，信息特别的长
  • -h type=name: 打印指定名称的decoder/encoder/demuxer/muxer/filter的所有选项信息
  • man ffmpeg: 查看ffmpeg的帮助手册
  • 特别注意：
    • 重点使用 -h type=name
    • 例如，查看libx264支持的参数  ffmpeg -h encoder=libx264
chy-cpabe@ubuntu:~/ffmpeg-source/ffmpeg$ ffmpeg -h encoder=libx264
ffmpeg version N-106797-g580fb6a8c9 Copyright (c) 2000-2022 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)
  configuration: --prefix=/home/chy-cpabe/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/chy-cpabe/ffmpeg_build/include --extra-ldflags=-L/home/chy-cpabe/ffmpeg_build/lib --extra-libs='-lpthread -lm' --ld=g++ --bindir=/home/chy-cpabe/bin --enable-gpl --enable-gnutls --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libsvtav1 --enable-libdav1d --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree
  libavutil      57. 24.101 / 57. 24.101
  libavcodec     59. 27.100 / 59. 27.100
  libavformat    59. 23.100 / 59. 23.100
  libavdevice    59.  6.100 / 59.  6.100
  libavfilter     8. 37.100 /  8. 37.100
  libswscale      6.  6.100 /  6.  6.100
  libswresample   4.  6.100 /  4.  6.100
  libpostproc    56.  5.100 / 56.  5.100
Encoder libx264 [libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10]:
    General capabilities: dr1 delay threads 
    Threading capabilities: other
    Supported pixel formats: yuv420p yuvj420p yuv422p yuvj422p yuv444p yuvj444p nv12 nv16 nv21
libx264 AVOptions:
  -preset            <string>     E..V....... Set the encoding preset (cf. x264 --fullhelp) (default "medium")
  -tune              <string>     E..V....... Tune the encoding params (cf. x264 --fullhelp)
  -profile           <string>     E..V....... Set profile restrictions (cf. x264 --fullhelp) 
  -fastfirstpass     <boolean>    E..V....... Use fast settings when encoding first pass (default true)
  -level             <string>     E..V....... Specify level (as defined by Annex A)
  -passlogfile       <string>     E..V....... Filename for 2 pass stats
  -wpredp            <string>     E..V....... Weighted prediction for P-frames
  -a53cc             <boolean>    E..V....... Use A53 Closed Captions (if available) (default true)
  -x264opts          <string>     E..V....... x264 options
  -crf               <float>      E..V....... Select the quality for constant quality mode (from -1 to FLT_MAX) (default -1)
  -crf_max           <float>      E..V....... In CRF mode, prevents VBV from lowering quality beyond this point. (from -1 to FLT_MAX) (default -1)
  -qp                <int>        E..V....... Constant quantization parameter rate control method (from -1 to INT_MAX) (default -1)
  -aq-mode           <int>        E..V....... AQ method (from -1 to INT_MAX) (default -1)
     none            0            E..V.......
     variance        1            E..V....... Variance AQ (complexity mask)
     autovariance    2            E..V....... Auto-variance AQ
     autovariance-biased 3            E..V....... Auto-variance AQ with bias to dark scenes
  -aq-strength       <float>      E..V....... AQ strength. Reduces blocking and blurring in flat and textured areas. (from -1 to FLT_MAX) (default -1)
  -psy               <boolean>    E..V....... Use psychovisual optimizations. (default auto)
  -psy-rd            <string>     E..V....... Strength of psychovisual optimization, in <psy-rd>:<psy-trellis> format.
  -rc-lookahead      <int>        E..V....... Number of frames to look ahead for frametype and ratecontrol (from -1 to INT_MAX) (default -1)
  -weightb           <boolean>    E..V....... Weighted prediction for B-frames. (default auto)
  -weightp           <int>        E..V....... Weighted prediction analysis method. (from -1 to INT_MAX) (default -1)
     none            0            E..V.......
     simple          1            E..V.......
     smart           2            E..V.......
  -ssim              <boolean>    E..V....... Calculate and print SSIM stats. (default auto)
  -intra-refresh     <boolean>    E..V....... Use Periodic Intra Refresh instead of IDR frames. (default auto)
  -bluray-compat     <boolean>    E..V....... Bluray compatibility workarounds. (default auto)
  -b-bias            <int>        E..V....... Influences how often B-frames are used (from INT_MIN to INT_MAX) (default INT_MIN)
  -b-pyramid         <int>        E..V....... Keep some B-frames as references. (from -1 to INT_MAX) (default -1)
     none            0            E..V.......
     strict          1            E..V....... Strictly hierarchical pyramid
     normal          2            E..V....... Non-strict (not Blu-ray compatible)
  -mixed-refs        <boolean>    E..V....... One reference per partition, as opposed to one reference per macroblock (default auto)
  -8x8dct            <boolean>    E..V....... High profile 8x8 transform. (default auto)
  -fast-pskip        <boolean>    E..V....... (default auto)
  -aud               <boolean>    E..V....... Use access unit delimiters. (default auto)
  -mbtree            <boolean>    E..V....... Use macroblock tree ratecontrol. (default auto)
  -deblock           <string>     E..V....... Loop filter parameters, in <alpha:beta> form.
  -cplxblur          <float>      E..V....... Reduce fluctuations in QP (before curve compression) (from -1 to FLT_MAX) (default -1)
  -partitions        <string>     E..V....... A comma-separated list of partitions to consider. Possible values: p8x8, p4x4, b8x8, i8x8, i4x4, none, all
  -direct-pred       <int>        E..V....... Direct MV prediction mode (from -1 to INT_MAX) (default -1)
     none            0            E..V.......
     spatial         1            E..V.......
     temporal        2            E..V.......
     auto            3            E..V.......
  -slice-max-size    <int>        E..V....... Limit the size of each slice in bytes (from -1 to INT_MAX) (default -1)
  -stats             <string>     E..V....... Filename for 2 pass stats
  -nal-hrd           <int>        E..V....... Signal HRD information (requires vbv-bufsize; cbr not allowed in .mp4) (from -1 to INT_MAX) (default -1)
     none            0            E..V.......
     vbr             1            E..V.......
     cbr             2            E..V.......
  -avcintra-class    <int>        E..V....... AVC-Intra class 50/100/200/300/480 (from -1 to 480) (default -1)
  -me_method         <int>        E..V....... Set motion estimation method (from -1 to 4) (default -1)
     dia             0            E..V.......
     hex             1            E..V.......
     umh             2            E..V.......
     esa             3            E..V.......
     tesa            4            E..V.......
  -motion-est        <int>        E..V....... Set motion estimation method (from -1 to 4) (default -1)
     dia             0            E..V.......
     hex             1            E..V.......
     umh             2            E..V.......
     esa             3            E..V.......
     tesa            4            E..V.......
  -forced-idr        <boolean>    E..V....... If forcing keyframes, force them as IDR frames. (default false)
  -coder             <int>        E..V....... Coder type (from -1 to 1) (default default)
     default         -1           E..V.......
     cavlc           0            E..V.......
     cabac           1            E..V.......
     vlc             0            E..V.......
     ac              1            E..V.......
  -b_strategy        <int>        E..V....... Strategy to choose between I/P/B-frames (from -1 to 2) (default -1)
  -chromaoffset      <int>        E..V....... QP difference between chroma and luma (from INT_MIN to INT_MAX) (default 0)
  -sc_threshold      <int>        E..V....... Scene change threshold (from INT_MIN to INT_MAX) (default -1)
  -noise_reduction   <int>        E..V....... Noise reduction (from INT_MIN to INT_MAX) (default -1)
  -udu_sei           <boolean>    E..V....... Use user data unregistered SEI if available (default false)
  -x264-params       <dictionary> E..V....... Override the x264 configuration using a :-separated list of key=value parameters

1.3 打印帮助或者支持能力的信息

  • 获取help信息
  • 打印各种格式支持的能力
Print help / information / capabilities:
-L                  show license
-h topic            show help
-? topic            show help
-help topic         show help
--help topic        show help
-version            show version
-buildconf          show build configuration
-formats            show available formats
-muxers             show available muxers
-demuxers           show available demuxers
-devices            show available devices
-codecs             show available codecs
-decoders           show available decoders
-encoders           show available encoders
-bsfs               show available bit stream filters
-protocols          show available protocols
-filters            show available filters
-pix_fmts           show available pixel formats
-layouts            show standard channel layouts
-sample_fmts        show available audio sample formats
-dispositions       show available stream dispositions
-colors             show available color names
-sources device     list sources of the input device
-sinks device       list sinks of the output device
-hwaccels           show available HW acceleration methods

1.4 全局选项

  •  全局选项说明
Global options (affect whole program instead of just one file):
-loglevel loglevel  set logging level
-v loglevel         set logging level
-report             generate a report
-max_alloc bytes    set maximum size of a single allocated block
-y                  overwrite output files
-n                  never overwrite output files
-ignore_unknown     Ignore unknown stream types
-filter_threads     number of non-complex filter threads
-filter_complex_threads  number of threads for -filter_complex
-stats              print progress report during encoding
-max_error_rate maximum error rate  ratio of decoding errors (0.0: no errors, 1.0: 100% errors) above which ffmpeg returns an error instead of success.
-vol volume         change audio volume (256=normal)

1.5 文件选项

  • 针对每个文件可以指定的选项
  • 例：-f fmt指定的文件的格式
Per-file main options:
-f fmt              force format
-c codec            codec name
-codec codec        codec name
-pre preset         preset name
-map_metadata outfile[,metadata]:infile[,metadata]  set metadata information of outfile from infile
-t duration         record or transcode "duration" seconds of audio/video
-to time_stop       record or transcode stop time
-fs limit_size      set the limit file size in bytes
-ss time_off        set the start time offset
-sseof time_off     set the start time offset relative to EOF
-seek_timestamp     enable/disable seeking by timestamp with -ss
-timestamp time     set the recording timestamp ('now' to set the current time)
-metadata string=string  add metadata
-program title=string:st=number...  add program with specified streams
-target type        specify target file type ("vcd", "svcd", "dvd", "dv" or "dv50" with optional prefixes "pal-", "ntsc-" or "film-")
-apad               audio pad
-frames number      set the number of frames to output
-filter filter_graph  set stream filtergraph
-filter_script filename  read stream filtergraph description from a file
-reinit_filter      reinit filtergraph on input parameter changes
-discard            discard
-disposition        disposition

1.6 视频/音频/字幕相关选项

  •  针对视频/音频/字幕相关的选项
Video options:
-vframes number     set the number of video frames to output
-r rate             set frame rate (Hz value, fraction or abbreviation)
-fpsmax rate        set max frame rate (Hz value, fraction or abbreviation)
-s size             set frame size (WxH or abbreviation)
-aspect aspect      set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)
-vn                 disable video
-vcodec codec       force video codec ('copy' to copy stream)
-timecode hh:mm:ss[:;.]ff  set initial TimeCode value.
-pass n             select the pass number (1 to 3)
-vf filter_graph    set video filters
-ab bitrate         audio bitrate (please use -b:a)
-b bitrate          video bitrate (please use -b:v)
-dn                 disable data

Audio options:
-aframes number     set the number of audio frames to output
-aq quality         set audio quality (codec-specific)
-ar rate            set audio sampling rate (in Hz)
-ac channels        set number of audio channels
-an                 disable audio
-acodec codec       force audio codec ('copy' to copy stream)
-vol volume         change audio volume (256=normal)
-af filter_graph    set audio filters

Subtitle options:
-s size             set frame size (WxH or abbreviation)
-sn                 disable subtitle
-scodec codec       force subtitle codec ('copy' to copy stream)
-stag fourcc/tag    force subtitle tag/fourcc
-fix_sub_duration   fix subtitles duration
-canvas_size size   set canvas size (WxH or abbreviation)
-spre preset        set the subtitle options to the indicated preset

2，流选择选项

  • 媒体格式如Mp4、AVI等内部包含了多种类型的流
    • FFmpeg可以识别5种流类型
    • 音频 audio a
    • 附件 attachment t
    • 数据 data d
    • 字幕 subtitle s
    • 视频 video v
  • 使用 -map选择需要的流，语法如下 file_number:stream_type[:stream_number]
    • file_number:       文件索引
    • stream_number  流索引 
  • 特别的流选择指令
    • -map 0  选择所有的流类型和其中所有的流
    • -map i:v  选择文件i中的所有视频流
    • -map i:a  选择文件i中的所有音频流
    • -map i:s  选择文件i中的所有字幕流

3，视频封装解封装

3.1 视频格式转换

chy-cpabe@ubuntu:~/ffmpeg-source/ffmpeg$ ffmpeg -i /home/chy-cpabe/Videos/avi_2_mp4.mp4 /home/chy-cpabe/Videos/mp4_2_ts.ts
ffmpeg version N-106797-g580fb6a8c9 Copyright (c) 2000-2022 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)
  configuration: --prefix=/home/chy-cpabe/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/chy-cpabe/ffmpeg_build/include --extra-ldflags=-L/home/chy-cpabe/ffmpeg_build/lib --extra-libs='-lpthread -lm' --ld=g++ --bindir=/home/chy-cpabe/bin --enable-gpl --enable-gnutls --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libsvtav1 --enable-libdav1d --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree
  libavutil      57. 24.101 / 57. 24.101
  libavcodec     59. 27.100 / 59. 27.100
  libavformat    59. 23.100 / 59. 23.100
  libavdevice    59.  6.100 / 59.  6.100
  libavfilter     8. 37.100 /  8. 37.100
  libswscale      6.  6.100 /  6.  6.100
  libswresample   4.  6.100 /  4.  6.100
  libpostproc    56.  5.100 / 56.  5.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/chy-cpabe/Videos/avi_2_mp4.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2mp41
    encoder         : Lavf59.23.100
  Duration: 00:00:45.13, start: 0.000000, bitrate: 1632 kb/s
  Stream #0:0[0x1](und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 480x360 [SAR 1:1 DAR 4:3], 1500 kb/s, 24 fps, 24 tbr, 12288 tbn (default)
    Metadata:
      handler_name    : VideoHandler
      vendor_id       : [0][0][0][0]
  Stream #0:1[0x2](und): Audio: mp3 (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
      vendor_id       : [0][0][0][0]
Stream mapping:
  Stream #0:0 -> #0:0 (mpeg4 (native) -> mpeg2video (native))
  Stream #0:1 -> #0:1 (mp3 (mp3float) -> mp2 (native))
Press [q] to stop, [?] for help
Output #0, mpegts, to '/home/chy-cpabe/Videos/mp4_2_ts.ts':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2mp41
    encoder         : Lavf59.23.100
  Stream #0:0(und): Video: mpeg2video (Main), yuv420p(progressive), 480x360 [SAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 24 fps, 90k tbn (default)
    Metadata:
      handler_name    : VideoHandler
      vendor_id       : [0][0][0][0]
      encoder         : Lavc59.27.100 mpeg2video
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: N/A
  Stream #0:1(und): Audio: mp2, 44100 Hz, stereo, s16, 384 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
      vendor_id       : [0][0][0][0]
      encoder         : Lavc59.27.100 mp2
frame= 1082 fps=622 q=31.0 Lsize=    4504kB time=00:00:45.04 bitrate= 819.1kbits/s speed=25.9x    
video:1968kB audio:2111kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 10.405245%

3.2 分离/合并视频音频流

  • 分离音频流
    • ffmpeg -i input-video -vn -c:a copy output-audio
      • -vn：表示不要视频
      • -acodec copy：表示拷贝输入视频的音频流
      • 输出文件 例如 output.wav
chy-cpabe@ubuntu:~/ffmpeg-source/ffmpeg$ ffmpeg -i /home/chy-cpabe/Videos/video_avi.avi -vn -c:a copy /home/chy-cpabe/Videos/video_avi.wav
ffmpeg version N-106797-g580fb6a8c9 Copyright (c) 2000-2022 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)
  configuration: --prefix=/home/chy-cpabe/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/chy-cpabe/ffmpeg_build/include --extra-ldflags=-L/home/chy-cpabe/ffmpeg_build/lib --extra-libs='-lpthread -lm' --ld=g++ --bindir=/home/chy-cpabe/bin --enable-gpl --enable-gnutls --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libsvtav1 --enable-libdav1d --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree
  libavutil      57. 24.101 / 57. 24.101
  libavcodec     59. 27.100 / 59. 27.100
  libavformat    59. 23.100 / 59. 23.100
  libavdevice    59.  6.100 / 59.  6.100
  libavfilter     8. 37.100 /  8. 37.100
  libswscale      6.  6.100 /  6.  6.100
  libswresample   4.  6.100 /  4.  6.100
  libpostproc    56.  5.100 / 56.  5.100
Input #0, avi, from '/home/chy-cpabe/Videos/video_avi.avi':
  Metadata:
    software        : Lavf54.59.106
  Duration: 00:00:45.13, start: 0.000000, bitrate: 1640 kb/s
  Stream #0:0: Video: mpeg4 (Simple Profile) (FMP4 / 0x34504D46), yuv420p, 480x360 [SAR 1:1 DAR 4:3], 1501 kb/s, 24 fps, 24 tbr, 24 tbn
  Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 44100 Hz, stereo, fltp, 128 kb/s
Output #0, wav, to '/home/chy-cpabe/Videos/video_avi.wav':
  Metadata:
    software        : Lavf54.59.106
    ISFT            : Lavf59.23.100
  Stream #0:0: Audio: mp3 (U[0][0][0] / 0x0055), 44100 Hz, stereo, fltp, 128 kb/s
Stream mapping:
  Stream #0:1 -> #0:0 (copy)
Press [q] to stop, [?] for help
size=     704kB time=00:00:45.03 bitrate= 128.0kbits/s speed=6.41e+03x    
video:0kB audio:704kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.014572%
  • 分离视频流
    • ffmpeg -i input-video -c:v copy -an output-video
      • -an：表示不要音频
      • -vcodec copy：表示拷贝输入视频的视频流
  • 同时分离音频和视频流
    • ffmpeg -i input-video -c:v copy -an output-video -c:a copy -vn output-audio
    • ffmpeg -i /home/chy-cpabe/Videos/video_avi.avi -c:v copy -an /home/chy-cpabe/Videos/video_mp4_1.mp4 -c:a copy -vn /home/chy-cpabe/Videos/video_avi_1.wav
  • 合并视频音频流
    • ffmpeg -i video_file -i audio_file -c:v copy -c:a copy output_file
    • ffmpeg -i /home/chy-cpabe/Videos/video_avi_1.wav -i /home/chy-cpabe/Videos/video_mp4_1.mp4 -c:v copy -c:v copy /home/chy-cpabe/Videos/merge.mp4

3.3 截取视频片段

  • 截取视频片段
    • ffmpeg -ss 5 -i input.mp4 -t 10 -c:v copy -c:a copy output.mp4
      • -ss 5指定从输入视频第5秒开始截取，-t 10指明最多截取10秒
      • 而-c:v copy -c:a copy标示视频与音频的编码不发生改变，而是直接复制，这样会大大提升速度，因为这样就不需要完全解码视频
      • 例子：ffmpeg -ss 5 -i merge.mp4 -t 10 -c:v copy -c:a copy merge_5-15.mp4
    • 截取10s到20s
      • 这个存在一个问题：音频数据流与先前保持不变，视频数据流 只显示10-20的数据
      • ffmpeg -i input.mp4 -c:v libx264 -filter:v select="between(t\\, 10\\, 20)" out.mp4
  • 从头截取前10帧
    • ffmpeg -i input.mp4 -c:v libx264 -filter:v select="gt(n\\, -1)" -vframes 10 out.mp4
    • ffmpeg -i input.mp4 -c:v libx264 -filter:v select="between(n\\, 0\\, 9)" out.mp4
  • 中间截取 10-20 帧
    • ffmpeg -i input.mp4 -c:v libx264 -filter:v select="between(n\\, 10\\, 20)" out.mp4

3.4 视频转换为m3u8格式

  • ffmpeg -i yoona.mp4 -c copy -map 0 -f segment -segment_list yoona.m3u8 -segment_time 10 yoona-%04d.ts

    • 形成一个以m3u8结尾的视频文件，并进一步进行数据切分，形成以 yoona-%04d.ts命名规则以ts结尾的的视频切片

  • ffmpeg -i output20.mp4 -codec copy  -hls_list_size 0  -hls_wrap 0 -strict -2  -vbsf h264_mp4toannexb -absf aac_adtstoasc -f hls -hls_base_url https://test.com/ test.m3u8
    • -hls_time n: 设置每片的长度，默认值为2。单位为秒。即EXTINF tag对应的值。hls_time设置后效果不一定准确，会受到关键帧大小及其他因素影响。如果需要相对非常准确的切片，可以添加hls_flags的子参数split_by_time来保证生成的切片能够与hls_time设置的切片时长差不多。split_by_time参数必须与hls_time配合使用，并且使用split_by_time参数有可能会影响首画面体验，例如花屏或者首画面显示慢的问题，因为视频的第一帧不一定是关键帧。
    • -hls_list_size n:设置播放列表保存的最多条目，设置为0会保存有所片信息，默认值为5。为了解决这个问题，需要指定参数-hls_list_size 0，这样就能包含所有的片段。
    • -hls_wrap n:设置多少片之后开始覆盖，如果设置为0则不会覆盖，默认值为0.这个选项能够避免在磁盘上存储过多的 片，而且能够限制写入磁盘的最多的片的数量。
    • -hls_start_number n:设置播放列表中sequence number的值为number，默认值为0。注意：播放列表的sequence number 对每个segment来说都必须是唯一的，而且它不能和片的文件名（当使用wrap选项时，文件名有可能会重复使用）混淆
    • h264_mp4toannexb： h264有两种封装，一种是annexb模式，传统模式，有startcode，SPS和PPS是在ES中，vlc里打开编码器信息中显示h264；一种是mp4模式，一般mp4 ，mkv会有，没有startcode，SPS和PPS以及其它信息被封装在container中，每一个frame前面是这个frame的长度,vlc里打开编码器信息中显示avc1。很多解码器只支持annexb这种模式，因此需要将mp4做转换。
    • aac_adtstoasc：将AAC编码器编码后的原始码流（ADTS头 + ES流）封装为MP4或者FLV或者MOV等格式时，需要先将ADTS头转换为MPEG-4 AudioSpecficConfig （将音频相关编解码参数提取出来），并将原始码流中的ADTS头去掉（只剩下ES流）；相反，从MP4或者FLV或者MOV等格式文件中解封装出AAC码流（只有ES流）时，需要在解析出的AAC码流前添加ADTS头（含音频相关编解码参数）
    • hls_base_url 参数用于为M3U8列表的文件路径设置前置基本路径参数，因为在FFmpeg中生成M3U8时写入的TS切片路径默认为M3U8生成的路径相同，但是实际上TS所存储的路径既可以为本地绝对路径，也可以为相对路

3.5 把视频文件推送到rtmp服务器

  • ffmpeg -re -i jack.mp4 -c copy -f flv rtmp://host/live/test        
  • 需要搭建 支持rtmp协议的服务器

3.6 对视频进行切片

  • 均匀切片
    • ffmpeg -i input.mp4 -c copy -f segment -segment_format mp4 -segment_time 300 -reset_timestamps 1 test_output-%d.mp4 
    • 将input.mp4 切换为5分钟时长的视频片段  300 / 60 = 5
    • 使用ffmpeg -h muxer=segment 查询segment muxer的参数
  • 按照时间点进行视频裁剪
    • ffmpeg -i input.mp4 -c copy -f segment -segment_format mp4 -segment_times 60,120,150 -reset_timestamps 1 test_output-%d.mp4 
    • 在第60秒 120秒 150秒 这三个时间点进行数据切片

4，视频解码编码

4.1 视频截图

  • 获取指定时间点的截图
ffmpeg -ss 01:23:45 -i input -vframes 1 -q:v 2 output.jpg

-i input file           the path to the input file
-ss 01:23:45            seek the position to the specified timestamp
-vframes 1              only handle one video frame
-q:v 2                  to control output quality. Full range is a linear scale of 1-31 where a lower value results in a higher quality. 2-5 is a good range to try.
output.jpg              output filename, should have a well-known extension
  • 截取指定帧序号的图像 帧序号从0开始
  • ffmpeg -i <input> -vf "select=eq(n\\,34)" -vframes 1 out.png
  • 例子：ffmpeg -i test.mp4 -vf "select=eq(n\\,6)" -vframes 1 output_1.png 

4.2 视频/图片尺寸修改

  • 安装imagemagick，apt-get install imagemagick
  • 用identify命令查看图片信息 数据信息较少 
  • 包括：文件名，图像格式，图像大小，图像深度，颜色空间，文件大小，用户时间等，例如：

chy-cpabe@ubuntu:~/Videos$ identify -verbose output.png 
Image: output.png
  Format: PNG (Portable Network Graphics)
  Mime type: image/png
  Class: DirectClass
  Geometry: 1920x1080+0+0
  Resolution: 1x1
  Print size: 1920x1080
  Units: Undefined
  Type: TrueColor
  Endianess: Undefined
  Colorspace: sRGB
  Depth: 8-bit
  Channel depth:
    red: 8-bit
    green: 8-bit
    blue: 8-bit
  Channel statistics:
    Pixels: 2073600
    Red:
      min: 0 (0)
      max: 255 (1)
      mean: 131.067 (0.513989)
      standard deviation: 56.6858 (0.222297)
      kurtosis: -1.2
      skewness: -0.241095
      entropy: 0.923994
    Green:
      min: 0 (0)
      max: 255 (1)
      mean: 147.134 (0.576995)
      standard deviation: 62.2514 (0.244123)
      kurtosis: -1.2576
      skewness: -0.216637
      entropy: 0.933398
    Blue:
      min: 0 (0)
      max: 255 (1)
      mean: 147.762 (0.579459)
      standard deviation: 66.8398 (0.262117)
      kurtosis: -1.27695
      skewness: -0.220383
      entropy: 0.936936
  Image statistics:
    Overall:
      min: 0 (0)
      max: 255 (1)
      mean: 141.988 (0.556814)
      standard deviation: 62.0647 (0.243391)
      kurtosis: -1.15139
      skewness: -0.182663
      entropy: 0.931443
  Rendering intent: Perceptual
  Gamma: 0.50994
  Chromaticity:
    red primary: (0.64,0.33)
    green primary: (0.3,0.6)
    blue primary: (0.15,0.06)
    white point: (0.3127,0.329)
  Background color: white
  Border color: srgb(223,223,223)
  Matte color: grey74
  Transparent color: black
  Interlace: None
  Intensity: Undefined
  Compose: Over
  Page geometry: 1920x1080+0+0
  Dispose: Undefined
  Iterations: 0
  Compression: Zip
  Orientation: Undefined
  Properties:
    date:create: 2022-05-15T00:04:35-07:00
    date:modify: 2022-05-15T00:04:35-07:00
    png:cHRM: chunk was found (see Chromaticity, above)
    png:gAMA: gamma=0.50994 (See Gamma, above)
    png:IHDR.bit-depth-orig: 8
    png:IHDR.bit_depth: 8
    png:IHDR.color-type-orig: 2
    png:IHDR.color_type: 2 (Truecolor)
    png:IHDR.interlace_method: 0 (Not interlaced)
    png:IHDR.width,height: 1920, 1080
    png:pHYs: x_res=1, y_res=1, units=0
    signature: 102364a6ba97efa6c6693cdca6ecbc0df735fa8532195c0c7b21aec0c3e254f9
  Artifacts:
    filename: output.png
    verbose: true
  Tainted: False
  Filesize: 2.39MB
  Number pixels: 2.074M
  Pixels per second: 29.62MB
  User time: 0.050u
  Elapsed time: 0:01.070
  Version: ImageMagick 6.9.7-4 Q16 x86_64 20170114 http://www.imagemagick.org
  • 修改 图片的储存大小为先前的一半
  • ffmpeg -i sample.jpg -s w*h out.jpg  
  • ffmpeg -i output.png -s 960*540 output_change.png

4.3 分离视频的YUV通道分量

  • ffmpeg -i jack.mp4 -filter_complex "extractplanes=y+u+v[y][u][v]" -map "[y]" jack_y.mp4 -map "[u]" jack_u.mp4 -map "[v]" jack_v.mp4    
  • https://zh.wikipedia.org/zh-sg/YUV
chy-cpabe@ubuntu:~/Videos$ ffmpeg -i test.mp4 -filter_complex "extractplanes=y+u+v[y][u][v]" -map "[y]" out_y.mp4 -map "[u]" out_u.mp4 -map "[v]" out_v.mp4
ffmpeg version N-106797-g580fb6a8c9 Copyright (c) 2000-2022 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)
  configuration: --prefix=/home/chy-cpabe/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/chy-cpabe/ffmpeg_build/include --extra-ldflags=-L/home/chy-cpabe/ffmpeg_build/lib --extra-libs='-lpthread -lm' --ld=g++ --bindir=/home/chy-cpabe/bin --enable-gpl --enable-gnutls --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libsvtav1 --enable-libdav1d --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree
  libavutil      57. 24.101 / 57. 24.101
  libavcodec     59. 27.100 / 59. 27.100
  libavformat    59. 23.100 / 59. 23.100
  libavdevice    59.  6.100 / 59.  6.100
  libavfilter     8. 37.100 /  8. 37.100
  libswscale      6.  6.100 /  6.  6.100
  libswresample   4.  6.100 /  4.  6.100
  libpostproc    56.  5.100 / 56.  5.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test.mp4':
  Metadata:
    major_brand     : M4V 
    minor_version   : 1
    compatible_brands: isomavc1mp42
    creation_time   : 2021-02-14T02:11:02.000000Z
  Duration: 00:00:23.36, start: 0.000000, bitrate: 6313 kb/s
  Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 6147 kb/s, 23.98 fps, 23.98 tbr, 24k tbn (default)
    Metadata:
      creation_time   : 2021-02-14T02:11:02.000000Z
      handler_name    : ETI ISO Video Media Handler
      vendor_id       : [0][0][0][0]
      encoder         : Elemental H.264
  Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 160 kb/s (default)
    Metadata:
      creation_time   : 2021-02-14T02:11:02.000000Z
      handler_name    : ETI ISO Audio Media Handler
      vendor_id       : [0][0][0][0]
Stream mapping:
  Stream #0:0 (h264) -> extractplanes:default
  extractplanes -> Stream #0:0 (libx264)
  extractplanes -> Stream #1:0 (libx264)
  extractplanes -> Stream #2:0 (libx264)
Press [q] to stop, [?] for help
[swscaler @ 0x559284e90c40] [swscaler @ 0x559284e9dc40] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284e90c40] [swscaler @ 0x559284eba2c0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284e90c40] [swscaler @ 0x559284ed4580] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284e90c40] [swscaler @ 0x559284eee840] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284e90c40] [swscaler @ 0x559284f08b00] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284e90c40] [swscaler @ 0x559284f22dc0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284e90c40] [swscaler @ 0x559284f3d080] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284e90c40] [swscaler @ 0x559284f57340] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284e90c40] [swscaler @ 0x559284f72540] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284f88b80] [swscaler @ 0x559284f95b40] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284f88b80] [swscaler @ 0x559284fafe00] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284f88b80] [swscaler @ 0x559284fca0c0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284f88b80] [swscaler @ 0x559284fe4380] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284f88b80] [swscaler @ 0x559284ffe640] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284f88b80] [swscaler @ 0x559285018900] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284f88b80] [swscaler @ 0x559285033b00] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284f88b80] [swscaler @ 0x55928504a140] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284f88b80] [swscaler @ 0x559285064400] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x55928507e6c0] [swscaler @ 0x55928508b680] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x55928507e6c0] [swscaler @ 0x5592850b4980] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x55928507e6c0] [swscaler @ 0x5592850dbe40] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x55928507e6c0] [swscaler @ 0x5592850f3ec0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x55928507e6c0] [swscaler @ 0x559285123380] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x55928507e6c0] [swscaler @ 0x55928514a840] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x55928507e6c0] [swscaler @ 0x559285171d00] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x55928507e6c0] [swscaler @ 0x559285189d80] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x55928507e6c0] [swscaler @ 0x5592851b9240] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284eb83c0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284f70680] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284ee6080] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284f55480] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284f62440] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284eff1c0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284e90c40] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284f20f80] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284f2fd80] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284eb83c0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284f70680] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284ee6080] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284f55480] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284f62440] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284eff1c0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284e90c40] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284f20f80] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284f31bc0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284eb83c0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284f70680] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284ee6080] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284f55480] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284f62440] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284eff1c0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284e90c40] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284f20f80] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284ed2700] [swscaler @ 0x559284f2fd80] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x559284fadf80] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x559284fe2500] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x559285031c40] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x559284ff4f40] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x559285001f00] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x559285016ac0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x559284f88b40] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x5592850482c0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x559285055280] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x559284fadf80] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x559284fe2500] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x559285031c40] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x559284ff4f40] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x559285001f00] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x559285016ac0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x559285023ac0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x559284f8c840] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x5592850482c0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x559284fadf80] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x559284fe2500] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x559285031c40] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x559284ff4f40] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x559285001f00] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x559285016ac0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x559285023ac0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x559284f8c840] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x559284fc8240] [swscaler @ 0x5592850482c0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x55928515f080] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x559285197340] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x5592851b5580] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x5592850bc280] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x559285175980] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x5592850da000] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x559285091140] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x559285114380] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x55928513f580] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x55928515f080] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x559285197340] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x559285150480] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x5592850b68c0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x559285173c40] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x5592850da000] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x55928507e4c0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x559285094bc0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x55928512e880] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x55928515f080] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x559285197340] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x559285150480] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x5592850b68c0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x559285173c40] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x5592850da000] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x55928507e4c0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x559285094bc0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5592851a8400] [swscaler @ 0x55928512e880] deprecated pixel format used, make sure you did set range correctly
[libx264 @ 0x559283ebb640] using SAR=1/1
[libx264 @ 0x559283ebb640] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x559283ebb640] profile High 4:4:4 Predictive, level 4.0, 4:4:4 8-bit
[libx264 @ 0x559283ebb640] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=4 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'out_y.mp4':
  Metadata:
    major_brand     : M4V 
    minor_version   : 1
    compatible_brands: isomavc1mp42
    encoder         : Lavf59.23.100
  Stream #0:0: Video: h264 (avc1 / 0x31637661), yuvj444p(pc, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 23.98 fps, 24k tbn
    Metadata:
      encoder         : Lavc59.27.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
[libx264 @ 0x559283e909c0] using SAR=1/1
[libx264 @ 0x559283e909c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x559283e909c0] profile High 4:4:4 Predictive, level 3.1, 4:4:4 8-bit
[libx264 @ 0x559283e909c0] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=4 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #1, mp4, to 'out_u.mp4':
  Metadata:
    major_brand     : M4V 
    minor_version   : 1
    compatible_brands: isomavc1mp42
    encoder         : Lavf59.23.100
  Stream #1:0: Video: h264 (avc1 / 0x31637661), yuvj444p(pc, bt709, progressive), 960x540 [SAR 1:1 DAR 16:9], q=2-31, 23.98 fps, 24k tbn
    Metadata:
      encoder         : Lavc59.27.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
[libx264 @ 0x559283ec5680] using SAR=1/1
[libx264 @ 0x559283ec5680] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x559283ec5680] profile High 4:4:4 Predictive, level 3.1, 4:4:4 8-bit
[libx264 @ 0x559283ec5680] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=4 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #2, mp4, to 'out_v.mp4':
  Metadata:
    major_brand     : M4V 
    minor_version   : 1
    compatible_brands: isomavc1mp42
    encoder         : Lavf59.23.100
  Stream #2:0: Video: h264 (avc1 / 0x31637661), yuvj444p(pc, bt709, progressive), 960x540 [SAR 1:1 DAR 16:9], q=2-31, 23.98 fps, 24k tbn
    Metadata:
      encoder         : Lavc59.27.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
frame=  560 fps= 13 q=-1.0 Lq=-1.0 q=-1.0 size=   15581kB time=00:00:23.23 bitrate=5494.4kbits/s speed=0.556x    
video:17234kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[libx264 @ 0x559283ebb640] frame I:3     Avg QP:20.11  size:127210
[libx264 @ 0x559283ebb640] frame P:204   Avg QP:22.05  size: 51523
[libx264 @ 0x559283ebb640] frame B:353   Avg QP:25.57  size: 14319
[libx264 @ 0x559283ebb640] consecutive B-frames:  3.2% 36.4%  5.4% 55.0%
[libx264 @ 0x559283ebb640] mb I  I16..4: 43.2%  0.0% 56.8%
[libx264 @ 0x559283ebb640] mb P  I16..4: 16.9%  0.0%  8.5%  P16..4: 39.6% 15.0%  5.4%  0.0%  0.0%    skip:14.6%
[libx264 @ 0x559283ebb640] mb B  I16..4:  1.7%  0.0%  0.7%  B16..8: 44.4%  5.9%  0.8%  direct: 2.2%  skip:44.2%  L0:43.1% L1:48.9% BI: 8.0%
[libx264 @ 0x559283ebb640] coded y,u,v intra: 28.8% 0.0% 0.0% inter: 14.0% 0.0% 0.0%
[libx264 @ 0x559283ebb640] i16 v,h,dc,p: 51% 24% 14% 11%
[libx264 @ 0x559283ebb640] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 25% 18% 21%  5%  7%  5%  8%  4%  6%
[libx264 @ 0x559283ebb640] Weighte
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