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Sur d’autres sites (11496)

  • video not playing on Android (chrome) and iOS (safari)

    26 mars 2019, par lviggiani

    Hi I have a few video that DOES NOT play in Android (directly on Chrome) and on iOS (directly on Safari) but plays on Windows, Mac and Linux on any browser.

    Here is the ffprobe output

    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'intro_sequence_01.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    date            : 2018-10-08T08:15:57.948731
    
    encoder         : Lavf58.18.104
    
  Duration: 00:00:08.00, start: 0.000000, bitrate: 259 kb/s
    
    Stream #0:0(und): Video: h264 (High 4:4:4 Predictive) (avc1 / 0x31637661), yuv444p, 1920x1080, 257 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler

    and here is the ffprobe output of another video that DOES play on Android and Chrome :

    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Torcia_960x540.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42mp41
    
    creation_time   : 2017-02-10T16:14:10.000000Z
    
  Duration: 00:00:11.52, start: 0.000000, bitrate: 10585 kb/s
    
    Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv), 960x540 [SAR 1:1 DAR 16:9], 10576 kb/s, 25 fps, 25 tbr, 25k tbn, 50 tbc (default)
    
    Metadata:
    
      creation_time   : 2017-02-10T16:14:10.000000Z
    
      handler_name    : Mainconcept MP4 Video Media Handler
    
      encoder         : AVC Coding

    Both are .mp4 format and are using h264 codec.
    As far as I can see, I notice a difference in codec profile h264 (High 4:4:4 Predictive) vs Video: h264 (Main) and yuv444p vs yuv420p(tv) and on metadata section.

    I tried re-encoding the first video with ffmpeg but without success.
    Does anyone know why video1 is not compatible with Android and iOS and how to re-ffmpeg it to make it play ?
    Thanks !

  • Why does this ffmpeg filter result in an "Invalid Size" error ?

    10 avril 2019, par pdoherty926

    Why do I see this error message :

    [Parsed_scale_0 @ 0x559a264c28a0] Invalid size ’if(gt(iw’

    [AVFilterGraph @ 0x559a268a19e0] Error initializing filter ’scale’

    with args ’if(gt(iw’ Error initializing complex filters.

    Invalid argument

    when trying to crop a video using ffmpeg and the following complex filter :

    ffmpeg -f mp4 -ss 01:24 \ 
    
  -i https://storage.googleapis.com/bucket/video.mp4 \
    
  -y \
    
  -filter_complex scale='if(gt(iw,ih),-1,616):if(gt(iw,ih),1440,-1)', crop=1440:616 \
    
  -an \
    
  -vcodec libx264 \
    
  -r 60 -pix_fmt yuv420p \
    
  -movflags faststart \
    
  -f mp4 \
    
  -t 1 \
    
  /tmp/asset.1554913197962.mp4

    In case it’s relevant, here’s the output of ffprobe :

    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'https://storage.googleapis.com/bucket/video.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.56.101
    
  Duration: 00:02:53.76, start: 0.000000, bitrate: 2910 kb/s
    
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 2777 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 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": "1001/60000",
    
            "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": 40,
    
            "color_range": "tv",
    
            "color_space": "bt709",
    
            "color_transfer": "bt709",
    
            "color_primaries": "bt709",
    
            "chroma_location": "left",
    
            "refs": 1,
    
            "is_avc": "true",
    
            "nal_length_size": "4",
    
            "r_frame_rate": "30000/1001",
    
            "avg_frame_rate": "30000/1001",
    
            "time_base": "1/90000",
    
            "start_pts": 0,
    
            "start_time": "0.000000",
    
            "duration_ts": 15633630,
    
            "duration": "173.707000",
    
            "bit_rate": "2777254",
    
            "bits_per_raw_sample": "8",
    
            "nb_frames": "5206",
    
            "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": 2,
    
            "channel_layout": "stereo",
    
            "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": 7662596,
    
            "duration": "173.755011",
    
            "bit_rate": "125588",
    
            "max_bit_rate": "125588",
    
            "nb_frames": "7483",
    
            "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": "eng",
    
                "handler_name": "SoundHandler"
    
            }
    
        }
    
    ],
    
    "format": {
    
        "filename": "https://storage.googleapis.com/bucket/video.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": "173.755000",
    
        "size": "63209767",
    
        "bit_rate": "2910294",
    
        "probe_score": 100,
    
        "tags": {
    
            "major_brand": "isom",
    
            "minor_version": "512",
    
            "compatible_brands": "isomiso2avc1mp41",
    
            "encoder": "Lavf57.56.101"
    
        }
    
    }
    
}

  • capturing x11grab display from ffmpeg giveing "segmentation fault1 q=0.0"

    26 juin 2019, par user2369563

    In Debian 9, I am trying to record screen using ffmpeg over x11grab. it’s working great but sometimes its give error as shown below.
    Any idea what causing this ?

    exec error: Error: Command failed: ffmpeg -y  -f x11grab -s 1920x1080 -framerate 30 -i :1.0+0,0 -vsync 1 -c:v libx264 -preset ultrafast -crf 0 -pix_fmt yuv444p output.mkv
    
ffmpeg version 3.2.14-1~deb9u1 Copyright (c) 2000-2019 the FFmpeg developers
    
  built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
    
  configuration: --prefix=/usr --extra-version='1~deb9u1' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
    
  libavutil      55. 34.101 / 55. 34.101
    
  libavcodec     57. 64.101 / 57. 64.101
    
  libavformat    57. 56.101 / 57. 56.101
    
  libavdevice    57.  1.100 / 57.  1.100
    
  libavfilter     6. 65.100 /  6. 65.100
    
  libavresample   3.  1.  0 /  3.  1.  0
    
  libswscale      4.  2.100 /  4.  2.100
    
  libswresample   2.  3.100 /  2.  3.100
    
  libpostproc    54.  1.100 / 54.  1.100
    
[x11grab @ 0x55f87adcffa0] Stream #0: not enough frames to estimate rate; consider increasing probesize
    
Input #0, x11grab, from ':1.0+0,0':
    
  Duration: N/A, start: 1561540173.584858, bitrate: N/A
    
    Stream #0:0: Video: rawvideo (BGR[0] / 0x524742), bgr0, 1920x1080, 30 fps, 1000k tbr, 1000k tbn, 1000k tbc
    
[libx264 @ 0x55f87adda860] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
    
[libx264 @ 0x55f87adda860] profile High 4:4:4 Predictive, level 4.0, 4:4:4 8-bit
    
[libx264 @ 0x55f87adda860] 264 - core 148 r2748 97eaef2 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=0 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=0 chroma_qp_offset=0 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=cqp mbtree=0 qp=0
    
Output #0, matroska, to 'output.mkv':
    
  Metadata:
    
    encoder         : Lavf57.56.101
    
    Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), yuv444p, 1920x1080, q=-1--1, 30 fps, 1k tbn, 30 tbc
    
    Metadata:
    
      encoder         : Lavc57.64.101 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
    
Press [q] to stop, [?] for help
    
Segmentation fault1 q=0.0 size=   10942kB time=00:00:02.40 bitrate=37332.4kbits/s speed=0.923x

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