FFMPEG 命令行工具-ffprobe

ffprobe 简介

ffprobe 是一个多媒体流分析工具。它从多媒体流中收集信息，并且以人类和机器可读的形式打印出来。

它可以用来检测多媒体流的容器类型，以及每一个多媒体流的格式和类型。它可以作为一个独立的应用来使用，也可以结合文本过滤器执行更复杂的处理。

英文手册

参数

命令形式：

ffprobe [options] [‘input_file’]

‘-f format’    强制使用的格式
‘-unit’        显示值的单位
‘-prefix’      显示的值使用标准国际单位制词头
‘-byte_binary_prefix’ 对字节值强制使用二进制前缀
‘-sexagesimal’ 时间值使用六十进位的格式 HH:MM:SS.MICROSECONDS
‘-pretty’      美化显示值的格式。它相当于 "-unit -prefix -byte_binary_prefix -sexagesimal"
‘-show_data’ 显示有效载荷数据，以十六进制和ASCII转储。与 ‘-show_packets’ 结合使用，它将
‘-show_error’    显示探测输入文件时的错误信息
‘-show_format’   显示输入多媒体流的容器格式信息
‘-show_packets’  显示输入多媒体流中每一个包的信息
‘-show_frames’   显示输入多媒体流中的每一帧以及字幕的信息
‘-show_streams’  显示输入多媒体流中每一个流的信息
‘-show_programs’ 显示输入多媒体流中程序以及它们的流的信息
‘-show_chapters’ 显示格式中存储的章节信息
‘-count_frames’  计算每一个流中的帧数，在相应的段中进行显示
‘-count_packets’ 计算每一个流中的包数，在相应的段中进行显示
‘-show_program_version’   显示程序版本及配置相关信息
‘-show_library_versions’  显示库版本相关信息
‘-show_versions’          显示程序和库版本相关信息。相当于同时设置‘-show_program_version’ 和
‘-show_library_versions’
‘-i input_file’           指定输入文件

举例：

ffprobe -print_format json -show_format -show_streams -i test.mp4

结果：

ffprobe version 4.1.3 Copyright (c) 2007-2019 the FFmpeg developers
  built with gcc 8.3.1 (GCC) 20190414
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
  libavutil      56. 22.100 / 56. 22.100
  libavcodec     58. 35.100 / 58. 35.100
  libavformat    58. 20.100 / 58. 20.100
  libavdevice    58.  5.100 / 58.  5.100
  libavfilter     7. 40.101 /  7. 40.101
  libswscale      5.  3.100 /  5.  3.100
  libswresample   3.  3.100 /  3.  3.100
  libpostproc    55.  3.100 / 55.  3.100
{
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.20.100
  Duration: 00:00:05.50, start: 0.000000, bitrate: 523 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 720x640 [SAR 512:309 DAR 192:103], 450 kb/s, 10 fps, 10 tbr, 10240 tbn, 20 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 69 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
    "streams": [
        {
            "index": 0,
            "codec_name": "h264",
            "codec_long_name": "H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10",
            "profile": "High",
            "codec_type": "video",
            "codec_time_base": "1/20",
            "codec_tag_string": "avc1",
            "codec_tag": "0x31637661",
            "width": 720,
            "height": 640,
            "coded_width": 720,
            "coded_height": 640,
            "has_b_frames": 2,
            "sample_aspect_ratio": "512:309",
            "display_aspect_ratio": "192:103",
            "pix_fmt": "yuv420p",
            "level": 31,
            "chroma_location": "left",
            "refs": 1,
            "is_avc": "true",
            "nal_length_size": "4",
            "r_frame_rate": "10/1",
            "avg_frame_rate": "10/1",
            "time_base": "1/10240",
            "start_pts": 0,
            "start_time": "0.000000",
            "duration_ts": 56320,
            "duration": "5.500000",
            "bit_rate": "450280",
            "bits_per_raw_sample": "8",
            "nb_frames": "55",
            "disposition": {
                "default": 1,
                "dub": 0,
                "original": 0,
                "comment": 0,
                "lyrics": 0,
                "karaoke": 0,
                "forced": 0,
                "hearing_impaired": 0,
                "visual_impaired": 0,
                "clean_effects": 0,
                "attached_pic": 0,
                "timed_thumbnails": 0
            },
            "tags": {
                "language": "und",
                "handler_name": "VideoHandler"
            }
        },
        {
            "index": 1,
            "codec_name": "aac",
            "codec_long_name": "AAC (Advanced Audio Coding)",
            "profile": "LC",
            "codec_type": "audio",
            "codec_time_base": "1/44100",
            "codec_tag_string": "mp4a",
            "codec_tag": "0x6134706d",
            "sample_fmt": "fltp",
            "sample_rate": "44100",
            "channels": 1,
            "channel_layout": "mono",
            "bits_per_sample": 0,
            "r_frame_rate": "0/0",
            "avg_frame_rate": "0/0",
            "time_base": "1/44100",
            "start_pts": 0,
            "start_time": "0.000000",
            "duration_ts": 232672,
            "duration": "5.276009",
            "bit_rate": "69929",
            "max_bit_rate": "69929",
            "nb_frames": "229",
            "disposition": {
                "default": 1,
                "dub": 0,
                "original": 0,
                "comment": 0,
                "lyrics": 0,
                "karaoke": 0,
                "forced": 0,
                "hearing_impaired": 0,
                "visual_impaired": 0,
                "clean_effects": 0,
                "attached_pic": 0,
                "timed_thumbnails": 0
            },
            "tags": {
                "language": "und",
                "handler_name": "SoundHandler"
            }
        }
    ],
    "format": {
        "filename": "test.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": "5.500000",
        "size": "359688",
        "bit_rate": "523182",
        "probe_score": 100,
        "tags": {
            "major_brand": "isom",
            "minor_version": "512",
            "compatible_brands": "isomiso2avc1mp41",
            "encoder": "Lavf58.20.100"
        }
    }
}