CODEWITHSUNDEEP
ffmpegffprobe
prcvcc
prcvcc

Reputation: 2230

ffprobe returns mov,mp4,m4a,3gp,3g2,mj2

I'm trying to find a certain way to understand if a given file is using the h.264 codec and it's streamable.

I'm using ffprobe and sometimes I get output such as this: 

{
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'file.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    creation_time   : 2036-02-06 06:28:16
    encoder         : HandBrake 0.10.2 2015060900
  Duration: 00:06:42.13, start: 0.000000, bitrate: 950 kb/s
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, smpte170m/smpte170m/bt709), 640x480 [SAR 1:1 DAR 4:3], 788 kb/s, 30 fps, 30 tbr, 90k tbn, 180k tbc (default)
    Metadata:
      creation_time   : 2036-02-06 06:28:16
      handler_name    : VideoHandler
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 155 kb/s (default)
    Metadata:
      creation_time   : 2036-02-06 06:28:16
      handler_name    : Stereo
    "format": {
        "filename": "file.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": "402.134000",
        "size": "47787790",
        "bit_rate": "950683",
        "probe_score": 100,
        "tags": {
            "major_brand": "mp42",
            "minor_version": "512",
            "compatible_brands": "isomiso2avc1mp41",
            "creation_time": "2036-02-06 06:28:16",
            "encoder": "HandBrake 0.10.2 2015060900"
        }
    }
}

now, it seems that the file is streamable and it's ok to be put online, but I was expecting something like this:

    "format_name": "h.264",

instead I get

    "format_name": "mov,mp4,m4a,3gp,3g2,mj2",

which seems very lax in terms of specifying what the hell this file is. I'm also using MP4Box in order to see if the video is streamable, but at this point I'm not sure how to handle specific h.264 recognition.

what should I do in order to be sure that a given file has the h.264 codec?

thanks

Upvotes: 2

Views: 9377

Answers (1)

prcvcc
prcvcc

Reputation: 2230

turns out it was my error :)

this is the correct command 

/opt/ffmpeg/ffprobe file.mp4 -show_streams  -select_streams v  -print_format json

which in turn gives: 

{
    "streams": [
        {
            "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": "1/180000",
            "codec_tag_string": "avc1",
            "codec_tag": "0x31637661",
            "width": 640,
            "height": 480,
            "has_b_frames": 2,
            "sample_aspect_ratio": "1:1",
            "display_aspect_ratio": "4:3",
            "pix_fmt": "yuv420p",
            "level": 40,
            "color_range": "tv",
            "color_space": "smpte170m",
            "color_transfer": "bt709",
            "color_primaries": "smpte170m",
            "chroma_location": "left",
            "refs": 4,
            "is_avc": "1",
            "nal_length_size": "4",
            "r_frame_rate": "30/1",
            "avg_frame_rate": "90465/3016",
            "time_base": "1/90000",
            "start_pts": 0,
            "start_time": "0.000000",
            "duration_ts": 36192000,
            "duration": "402.133333",
            "bit_rate": "788651",
            "bits_per_raw_sample": "8",
            "nb_frames": "12062",
            "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
            },
            "tags": {
                "creation_time": "2036-02-06 06:28:16",
                "language": "und",
                "handler_name": "VideoHandler"
            }
        }
    ]
}

Upvotes: 3

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