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  • Android FFmpeg sometimes works and sometimes crashes

    20 novembre 2013, par Pawel Cala

    I compiled FFmpeg for Android ( https://gitorious.org/android-ffmpeg ) but when I'm trying to do some operations ( f.e filters cropping, transpose, trim etc ) it crashes in 5 on 10 cases.
    Error logs are not the same so I assume that it might be caused by memory issues.
    I'm using OSX, NDK android-ndk-r9b : darwing x86_64.
    Native ffmpeg method is passing args to ffmpeg.c main method. It's executed in AsyncTask in Activity.
    Thanks in advance

    EDIT :
    I forgot to mention that programs algorithm runs like that :
    Press Button - > Open Camera Intent - > Start recording - > After recording copy file to project folder ( on SD card ) - > Open edit activity + Start asynctask

    EDIT2 :
    Tested on HTC ONE with different video resolutions

    Version and config of ffmpeg

    11-20 12:15:23.001: I/ff-log(19091): ffmpeg version 0.10.2.git
    
11-20 12:15:23.001: I/ff-log(19091):  Copyright (c) 2000-2012 the FFmpeg developers
    
11-20 12:15:23.001: I/ff-log(19091):   built on Nov 20 2013 12:12:46 with gcc 4.6 20120106 (prerelease)
    
11-20 12:15:23.001: I/ff-log(19091):   configuration: --target-os=linux --cross-prefix=arm-linux-androideabi- --arch=arm --cpu=armv7-a --disable-ffplay --disable-ffserver --disable-network --disable-avdevice --enable-protocol=file --enable-hwaccel=mpeg4_vaapi --enable-hwaccel=h264_vaapi --sysroot=/Users/dpc/Developer/android-ndk-r9b/platforms/android-9/arch-arm --disable-decoder=h264_vdpau --prefix=build/armv7-a --disable-asm --enable-small --disable-everything --enable-decoder=mjpeg --enable-parser=mjpeg --enable-muxer=mp4 --enable-muxer=h264 --enable-muxer=h263 --enable-muxer=yuv4mpegpipe --enable-muxer=mov --enable-demuxer=mpegvideo --enable-demuxer=mjpeg --enable-demuxer=image2 --enable-demuxer=mp4 --enable-demuxer=aac --enable-demuxer=ac3 --enable-demuxer=mp3 --enable-demuxer=yuv4mpegpipe --enable-demuxer=mov --enable-decoder=mpegvideo --enable-decoder=mpeg4 --enable-decoder=mp3 --enable-decoder=ac3 --enable-decoder=aac --enable-decoder=h264 --enable-decoder=h263 --enable-decoder=rawvideo --enable-decoder=yuv4 --enable-decoder=png --enable

    Sample comand :

    1-20 12:15:22.991: I/FFMPEG(19091): CMD:-i file:/storage/emulated/0/.project/videos/mac_video_tmp.mp4 -vf crop=1079:1079:0:420 -vcodec mpeg4 -sameq -acodec copy file:/storage/emulated/0/.project/videos/croppedVid.mp4

    Some output errors :

    1st type :

       11-20 12:15:23.011: I/ff-log(19091):   libavutil      51. 46.100 / 51. 46.100
    
11-20 12:15:23.011: I/ff-log(19091):   libavcodec     54. 14.101 / 54. 14.101
    
11-20 12:15:23.011: I/ff-log(19091):   libavformat    54.  3.100 / 54.  3.100
    
11-20 12:15:23.011: I/ff-log(19091):   libavfilter     2. 70.100 /  2. 70.100
    
11-20 12:15:23.011: I/ff-log(19091):   libswscale      2.  1.100 /  2.  1.100
    
11-20 12:15:23.011: I/ff-log(19091):   libswresample   0. 11.100 /  0. 11.100
    
11-20 12:15:23.011: I/ff-log(19091): before parsing options
    
11-20 12:15:23.011: I/ff-log(19091): before parsing options
    
11-20 12:15:23.011: I/ff-log(19091): parse options
    
11-20 12:15:23.011: I/ff-log(19091): prepare app arguments !!! NOT defined(_WIN32) && !defined(__MINGW32CE__) !
    
11-20 12:15:23.011: I/ff-log(19091): after prepare app arguments
    
11-20 12:15:23.011: I/ff-log(19091): ffurl_open: file:/storage/emulated/0/.project/videos/mac_video_tmp.mp4, 1
    
11-20 12:15:23.011: I/ff-log(19091): ffurl_alloc: file:/storage/emulated/0/.project/videos/mac_video_tmp.mp4, 1
    
11-20 12:15:23.011: I/ff-log(19091): ffurl_alloc: file
    
11-20 12:15:23.011: I/ff-log(19091): ffurl_open alloc: 0
    
11-20 12:15:23.011: I/ff-log(19091): ffurl_connect
    
11-20 12:15:23.011: I/ff-log(19091): ffurl_open connect: 0
    
11-20 12:15:23.011: I/ff-log(19091): Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100
    
11-20 12:15:23.011: I/ff-log(19091): ISO: File Type Major Brand: isom
    
11-20 12:15:23.021: I/ff-log(19091): File position before avformat_find_stream_info() is 8458240
    
11-20 12:15:23.041: A/libc(19091): Fatal signal 11 (SIGSEGV) at 0x00000000 (code=1), thread 19091 (t.android.utils)

    Second type :

    11-20 12:17:04.800: I/ff-log(19632):   libavutil      51. 46.100 / 51. 46.100
    
11-20 12:17:04.800: I/ff-log(19632):   libavcodec     54. 14.101 / 54. 14.101
    
11-20 12:17:04.800: I/ff-log(19632):   libavformat    54.  3.100 / 54.  3.100
    
11-20 12:17:04.800: I/ff-log(19632):   libavfilter     2. 70.100 /  2. 70.100
    
11-20 12:17:04.800: I/ff-log(19632):   libswscale      2.  1.100 /  2.  1.100
    
11-20 12:17:04.800: I/ff-log(19632):   libswresample   0. 11.100 /  0. 11.100
    
11-20 12:17:04.800: I/ff-log(19632): before parsing options
    
11-20 12:17:04.800: I/ff-log(19632): before parsing options
    
11-20 12:17:04.800: I/ff-log(19632): parse options
    
11-20 12:17:04.800: I/ff-log(19632): prepare app arguments !!! NOT defined(_WIN32) && !defined(__MINGW32CE__) !
    
11-20 12:17:04.800: I/ff-log(19632): after prepare app arguments
    
11-20 12:17:04.800: I/ff-log(19632): opt_output_file ܞ�f��f��f��f���flated/0/.project/videos/mac_video_tmp.mp4
    
11-20 12:17:04.800: I/ff-log(19632): ffurl_alloc: ܞ�f��f��f��f���flated/0/.project/videos/mac_video_tmp.mp4, 0
    
11-20 12:17:04.800: I/ff-log(19632): ffurl_alloc: file
    
11-20 12:17:04.800: I/ff-log(19632): ffurl_open: ܞ�f��f��f��f���flated/0/.project/videos/mac_video_tmp.mp4, 2
    
11-20 12:17:04.800: I/ff-log(19632): ffurl_alloc: ܞ�f��f��f��f���flated/0/.project/videos/mac_video_tmp.mp4, 2
    
11-20 12:17:04.800: I/ff-log(19632): ffurl_alloc: file
    
11-20 12:17:04.800: I/ff-log(19632): ffurl_open alloc: 0
    
11-20 12:17:04.800: I/ff-log(19632): ffurl_connect
    
11-20 12:17:04.800: I/ff-log(19632): ffurl_open connect: -2
    
11-20 12:17:04.800: I/ff-log(19632): ffurl_open FAIL
    
11-20 12:17:04.800: I/ff-log(19632): ܞ�f��f��f��f���flated/0/.project/videos/mac_video_tmp.mp4: No such file or directory

    ( CHARSER IS AS IT'S IN OUTPUT LOGCAT )

    3rd type :

    11-20 12:18:23.243: I/ff-log(19867):   libavutil      51. 46.100 / 51. 46.100
    
11-20 12:18:23.243: I/ff-log(19867):   libavcodec     54. 14.101 / 54. 14.101
    
11-20 12:18:23.243: I/ff-log(19867):   libavformat    54.  3.100 / 54.  3.100
    
11-20 12:18:23.243: I/ff-log(19867):   libavfilter     2. 70.100 /  2. 70.100
    
11-20 12:18:23.243: I/ff-log(19867):   libswscale      2.  1.100 /  2.  1.100
    
11-20 12:18:23.243: I/ff-log(19867):   libswresample   0. 11.100 /  0. 11.100
    
11-20 12:18:23.243: I/ff-log(19867): before parsing options
    
11-20 12:18:23.243: I/ff-log(19867): before parsing options
    
11-20 12:18:23.243: I/ff-log(19867): parse options
    
11-20 12:18:23.243: I/ff-log(19867): prepare app arguments !!! NOT defined(_WIN32) && !defined(__MINGW32CE__) !
    
11-20 12:18:23.243: I/ff-log(19867): after prepare app arguments
    
11-20 12:18:23.243: I/ff-log(19867): Unknown decoder '��f('
    
11-20 12:18:23.243: I/ff-log(19867): exit_program 1
    
11-20 12:18:23.243: I/ff-log(19867): exit_program 1
    
11-20 12:18:23.243: I/ff-log(19867): exit_program 2
    
11-20 12:18:23.253: A/libc(19867): @@@ ABORTING: invalid address or address of corrupt block 0x1d3422d passed to dlfree
    
11-20 12:18:23.253: A/libc(19867): Fatal signal 11 (SIGSEGV) at 0xdeadbaad (code=1), thread 20393 (AsyncTask #2)

    4th type :

    11-20 12:20:07.214: I/ff-log(20660):   libavutil      51. 46.100 / 51. 46.100
    
11-20 12:20:07.214: I/ff-log(20660):   libavcodec     54. 14.101 / 54. 14.101
    
11-20 12:20:07.214: I/ff-log(20660):   libavformat    54.  3.100 / 54.  3.100
    
11-20 12:20:07.214: I/ff-log(20660):   libavfilter     2. 70.100 /  2. 70.100
    
11-20 12:20:07.214: I/ff-log(20660):   libswscale      2.  1.100 /  2.  1.100
    
11-20 12:20:07.214: I/ff-log(20660):   libswresample   0. 11.100 /  0. 11.100
    
11-20 12:20:07.214: I/ff-log(20660): before parsing options
    
11-20 12:20:07.214: I/ff-log(20660): before parsing options
    
11-20 12:20:07.214: I/ff-log(20660): parse options
    
11-20 12:20:07.214: I/ff-log(20660): prepare app arguments !!! NOT defined(_WIN32) && !defined(__MINGW32CE__) !
    
11-20 12:20:07.214: I/ff-log(20660): after prepare app arguments
    
11-20 12:20:07.214: I/ff-log(20660): Unknown decoder ''
    
11-20 12:20:07.214: I/ff-log(20660): exit_program 1
    
11-20 12:20:07.214: A/libc(20660): Fatal signal 11 (SIGSEGV) at 0x2d007165 (code=1), thread 21017 (AsyncTask #2)

  • Transcoding/ Converting mpeg to h264 using ffmpeg h264_nvenc

    15 septembre 2024, par Mustafa

    I'm trying to transcode a video rendered by Davinci Resolve, using ffmpeg from mpeg4 to h264, on Ubuntu, using the following command.

    


    ffmpeg -y -vsync 0 -hwaccel cuda -hwaccel_output_format cuda -i input.mov -c:a copy -c:v h264_nvenc -b:v 8M -preset 7 output-h264_nvenc-p7.mp4 -v verbose


    


    And my Nvidia card is NVIDIA GeForce GTX 1650.

    


    I'm gettting the following error :

    


    [mpeg4 @ 0x55a893ed3200] Video width 3840 not within range from 48 to 2032
[mpeg4 @ 0x55a893ed3200] Failed setup for format cuda: hwaccel initialisation returned error.


    


    And here's the complete output. The command produces an output but its quality is significantly less than the original.

    


      built with gcc 13 (Ubuntu 13.2.0-23ubuntu4)
  configuration: --enable-nonfree --enable-cuda-nvcc --enable-libnpp --extra-cflags=-I/usr/local/cuda/include --extra-ldflags=-L/usr/local/cuda/lib64 --disable-static --enable-shared --enable-gpl --enable-libx264
  libavutil      59. 36.100 / 59. 36.100
  libavcodec     61. 13.100 / 61. 13.100
  libavformat    61.  5.101 / 61.  5.101
  libavdevice    61.  2.101 / 61.  2.101
  libavfilter    10.  2.102 / 10.  2.102
  libswscale      8.  2.100 /  8.  2.100
  libswresample   5.  2.100 /  5.  2.100
  libpostproc    58.  2.100 / 58.  2.100
-vsync is deprecated. Use -fps_mode
Passing a number to -vsync is deprecated, use a string argument as described in the manual.
Selecting decoder 'mpeg4' because of requested hwaccel method cuda
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mov':
  Metadata:
    major_brand     : qt  
    minor_version   : 512
    compatible_brands: qt  
    creation_time   : 2024-09-15T04:25:29.000000Z
    encoder         : Blackmagic Design DaVinci Resolve
  Duration: 00:20:34.87, start: 0.000000, bitrate: 347243 kb/s
  Stream #0:0[0x1]: Video: mpeg4 (Simple Profile), 1 reference frame (mp4v / 0x7634706D), yuv420p(bt709/bt709/unknown, left), 3840x2160 [SAR 1:1 DAR 16:9], 345703 kb/s, 60 fps, 60 tbr, 15360 tbn (default)
      Metadata:
        creation_time   : 2024-09-15T04:25:29.000000Z
        handler_name    : VideoHandler
        vendor_id       :     
        encoder         : MPEG4 Video
        timecode        : 01:00:00:00
  Stream #0:1[0x2]: Audio: pcm_s16le (lpcm / 0x6D63706C), 48000 Hz, stereo, s16, 1536 kb/s (default)
      Metadata:
        creation_time   : 2024-09-15T04:25:29.000000Z
        handler_name    : SoundHandler
        vendor_id       : [0][0][0][0]
  Stream #0:2[0x3](eng): Data: none (tmcd / 0x64636D74) (default)
      Metadata:
        creation_time   : 2024-09-15T04:25:29.000000Z
        handler_name    : TimeCodeHandler
        timecode        : 01:00:00:00
[out#0/mp4 @ 0x55a8929e8d80] No explicit maps, mapping streams automatically...
[vost#0:0/h264_nvenc @ 0x55a8929f5880] Created video stream from input stream 0:0
[aost#0:1/copy @ 0x55a893867080] Created audio stream from input stream 0:1
Stream mapping:
  Stream #0:0 -> #0:0 (mpeg4 (native) -> h264 (h264_nvenc))
  Stream #0:1 -> #0:1 (copy)
[vost#0:0/h264_nvenc @ 0x55a8929f5880] Starting thread...
[vf#0:0 @ 0x55a8929f17c0] Starting thread...
[vist#0:0/mpeg4 @ 0x55a89293a100] [dec:mpeg4 @ 0x55a8929f4440] Starting thread...
[in#0/mov,mp4,m4a,3gp,3g2,mj2 @ 0x55a8929e0600] Starting thread...
Press [q] to stop, [?] for help
[mpeg4 @ 0x55a893ed3200] NVDEC capabilities:
[mpeg4 @ 0x55a893ed3200] format supported: yes, max_mb_count: 8192
[mpeg4 @ 0x55a893ed3200] min_width: 48, max_width: 2032
[mpeg4 @ 0x55a893ed3200] min_height: 16, max_height: 2032
[mpeg4 @ 0x55a893ed3200] Video width 3840 not within range from 48 to 2032
[mpeg4 @ 0x55a893ed3200] Failed setup for format cuda: hwaccel initialisation returned error.
[graph -1 input from stream 0:0 @ 0x75c970002e40] w:3840 h:2160 pixfmt:yuv420p tb:1/15360 fr:60/1 sar:1/1 csp:bt709 range:unknown
[graph -1 input from stream 0:0 @ 0x75c970002e40] video frame properties congruent with link at pts_time: 0
[h264_nvenc @ 0x55a8929e62c0] Using device cuda0 (type cuda) with h264_nvenc encoder.
[h264_nvenc @ 0x55a8929e62c0] Loaded Nvenc version 12.2
[h264_nvenc @ 0x55a8929e62c0] Nvenc initialized successfully
[h264_nvenc @ 0x55a8929e62c0] The selected preset is deprecated. Use p1 to p7 + -tune or fast/medium/slow.
Output #0, mp4, to 'output-h264_nvenc-p7.mp4':
  Metadata:
    major_brand     : qt  
    minor_version   : 512
    compatible_brands: qt  
    encoder         : Lavf61.5.101
  Stream #0:0: Video: h264 (Main), 1 reference frame (avc1 / 0x31637661), yuv420p(tv, bt709/bt709/unknown, progressive, left), 3840x2160 [SAR 1:1 DAR 16:9], q=2-31, 8000 kb/s, 60 fps, 15360 tbn (default)
      Metadata:
        creation_time   : 2024-09-15T04:25:29.000000Z
        handler_name    : VideoHandler
        vendor_id       :     
        timecode        : 01:00:00:00
        encoder         : Lavc61.13.100 h264_nvenc
      Side data:
        cpb: bitrate max/min/avg: 0/0/8000000 buffer size: 16000000 vbv_delay: N/A
  Stream #0:1: Audio: pcm_s16le (ipcm / 0x6D637069), 48000 Hz, stereo, s16, 1536 kb/s (default)
      Metadata:
        creation_time   : 2024-09-15T04:25:29.000000Z
        handler_name    : SoundHandler
        vendor_id       : [0][0][0][0]


    


    How can I find the cause of the error and resolve it ?

    


    Also is there a way to improve the quality of the output video as it's much lower than the original ? I tried doing the same conversion using libxh264 (using the CPU) and that produced a far better video.

    


  • ffmpeg nvdec not available when adding subtitles to mp4

    17 février 2019, par whatdoineed2do

    I have a mp4 video that I want to BURN-IN subtitles (from a .ass file and via -vf ass=/tmp/conf-notes.ass) with ffmpeg on a machine with a GTX1060 card however ffmpeg reports that it fails to create the NVDEC decoder.

    [h264 @ 0xcb9380] Error creating a NVDEC decoder: 1
    
[h264 @ 0xcb9380] Failed setup for format cuda: hwaccel initialisation returned error.

    The output file is generated ok but during the creation the CPU is used heavily (I assume for decode) - if I drop the -vf ass=/tmp/conf-notes.ass and perform an mp4->mp4 reencode there are no problems.

    I want to know what I am missing from my command to allow the GPU to perform the decode when an .ass file is added to the chain.

    $ ffmpeg -hwaccel cuvid -i 2019-01-conferance.mp4 -vf ass=/tmp/conf-notes.ass -c:a copy -preset llhq -rc vbr_hq -vb 2M -minrate 500k -maxrate 12M -c:v h264_nvenc export.mp4
    
ffmpeg version 4.0.2 Copyright (c) 2000-2018 the FFmpeg developers
    
  built with gcc 8 (GCC)
    
  configuration: --arch=x86_64 --bindir=/usr/bin --datadir=/usr/share/ffmpeg --disable-debug --disable-static --disable-stripping --enable-alsa --enable-avfilter --enable-avresample --enable-bzlib --enable-decklink --enable-doc --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gpl --enable-iconv --enable-libass --enable-libbluray --enable-libcdio --enable-libdc1394 --enable-libdrm --enable-libfdk-aac --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libilbc --enable-libkvazaar --enable-libmfx --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librsvg --enable-librtmp --enable-librubberband --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtesseract --enable-libtheora --enable-libtwolame --enable-libv4l2 --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxcb-shm --enable-libxcb-xfixes --enable-libxcb-shape --enable-libxml2 --enable-libxvid --enable-libzvbi --enable-lv2 --enable-lzma --enable-libndi_newtek --enable-nonfree --enable-openal --enable-opencl --enable-opengl --enable-postproc --enable-pthreads --enable-sdl2 --enable-shared --enable-version3 --enable-xlib --enable-zlib --extra-cflags=-I/usr/include/cuda --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --optflags='-O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection' --prefix=/usr --shlibdir=/usr/lib64 --enable-cuda --enable-cuvid --enable-libnpp --enable-nvdec --enable-nvenc --enable-runtime-cpudetect
    
  libavutil      56. 14.100 / 56. 14.100
    
  libavcodec     58. 18.100 / 58. 18.100
    
  libavformat    58. 12.100 / 58. 12.100
    
  libavdevice    58.  3.100 / 58.  3.100
    
  libavfilter     7. 16.100 /  7. 16.100
    
  libavresample   4.  0.  0 /  4.  0.  0
    
  libswscale      5.  1.100 /  5.  1.100
    
  libswresample   3.  1.100 /  3.  1.100
    
  libpostproc    55.  1.100 / 55.  1.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '2019-01-conferance.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: isommp42
    
    creation_time   : 2019-01-12T00:00:06.000000Z
    
  Duration: 00:00:24.07, start: 0.000000, bitrate: 11542 kb/s
    
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 11350 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
    
    Metadata:
    
      creation_time   : 2019-01-12T00:00:07.000000Z
    
      handler_name    : Mainconcept MP4 Video Media Handler
    
      encoder         : AVC Coding
    
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 189 kb/s (default)
    
    Metadata:
    
      creation_time   : 2019-01-12T00:00:07.000000Z
    
      handler_name    : Mainconcept MP4 Sound Media Handler
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (h264_nvenc))
    
  Stream #0:1 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
[h264 @ 0xcb9380] Error creating a NVDEC decoder: 1
    
[h264 @ 0xcb9380] Failed setup for format cuda: hwaccel initialisation returned error.
    
[Parsed_ass_0 @ 0x1241c00] Shaper: FriBidi 1.0.2 (SIMPLE) HarfBuzz-ng 1.7.5 (COMPLEX)
    
[Parsed_ass_0 @ 0x1241c00] Using font provider fontconfig
    
[Parsed_ass_0 @ 0x1241c00] Added subtitle file: '/tmp/conf-notes.ass' (2 styles, 101 events)

    The .ass file has been generated from a .srt file via ffmpeg -i foo.srt foo.ass

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