Я работаю над приложением для Android, которое обрезает видео с помощью ffmpg. Это отлично работает для всех видео, но не для видео, записанных камерой телефона. Я заметил, что у всех этих видов видео параметр «rotate» больше 0 в метаданных видеопотока. Вот команда ffmpg complete
ffmpeg -y -i /storage/VID_20.3gp -vf crop=280:70:176:0 -c:a copy -threads 5 -strict experimental -preset veryslow /storage/VID_203.3gp Это вывод вышеуказанной команды
Ошибка при открытии кодировщика для выходного потока # 0: 0 - возможно, неверные параметры, такие как bit_rate, скорость, ширина или высота
и эта ссылка на вывод отчета ffmpeg
Если я пытаюсь указать кодеки с помощью следующей команды
ffmpeg -y -i /storage/VID_20.3gp -codec:v x264 -vf crop=280:70:176:0 -c:a copy -threads 5 -strict experimental -preset veryslow /storage/VID_203.3gp Тогда ошибка изменится на следующую
[NULL @ 0x4115d960] Невозможно найти подходящий выходной формат для 'crop = 280: 70: 176: 0' I: crop = 280: 70: 176: 0: неверный аргумент
и эта ссылка на вывод отчета ffmpeg
ffmpeg started on 2016-01-13 at 18:48:54 Report written to "ffmpeg-20160113-184854.log" Command line: /data/data/fnzstudios.com.videocrop/app_bin/ffmpeg -y -i /storage/sdcard0/DCIM/Camera/VID_20160113_101209.3gp "-codec:v x264" -vf "crop=280:70:176:0" -c:a copy -threads 5 -strict experimental -preset veryslow -report /storage/sdcard0/croppedvideos/VID_20160113_101209.3gp ffmpeg version 0.11.1 Copyright (c) 2000-2012 the FFmpeg developers built on Dec 22 2014 12:52:34 with gcc 4.6 20120106 (prerelease) configuration: --arch=arm --cpu=cortex-a8 --target-os=linux --enable-runtime-cpudetect --prefix=/data/data/info.guardianproject.ffmpeg/app_opt --enable-pic --disable-shared --enable-static --cross-prefix=/home/n8fr8/dev/android/ndk/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/arm-linux-androideabi- --sysroot=/home/n8fr8/dev/android/ndk/platforms/android-16/arch-arm --extra-cflags='-I../x264 -mfloat-abi=softfp -mfpu=neon -fPIE -pie' --extra-ldflags='-L../x264 -fPIE -pie' --enable-version3 --enable-gpl --disable-doc --enable-yasm --enable-decoders --enable-encoders --enable-muxers --enable-demuxers --enable-parsers --enable-protocols --enable-filters --enable-avresample --enable-libfreetype --disable-indevs --enable-indev=lavfi --disable-outdevs --enable-hwaccels --enable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffserver --disable-network --enable-libx264 --enable-zlib libavutil 51. 54.100 / 51. 54.100 libavcodec 54. 23.100 / 54. 23.100 libavformat 54. 6.100 / 54. 6.100 libavdevice 54. 0.100 / 54. 0.100 libavfilter 2. 77.100 / 2. 77.100 libswscale 2. 1.100 / 2. 1.100 libswresample 0. 15.100 / 0. 15.100 libpostproc 52. 0.100 / 52. 0.100 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x4211b3d0] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x4211b3d0] ISO: File Type Major Brand: 3gp4 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x4211b3d0] File position before avformat_find_stream_info() is 1384931 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x4211b3d0] All info found rfps: 8.083333 0.010260 rfps: 8.166667 0.001840 rfps: 8.250000 0.000241 rfps: 8.250000 0.000241 rfps: 8.333333 0.005463 rfps: 8.333333 0.005463 rfps: 8.416667 0.017508 rfps: 16.333333 0.007358 rfps: 16.416667 0.000750 rfps: 16.416667 0.000750 rfps: 16.500000 0.000963 rfps: 16.500000 0.000963 rfps: 16.583333 0.007997 rfps: 16.583333 0.007997 rfps: 24.500000 0.016556 rfps: 24.583333 0.004937 rfps: 24.666667 0.000141 rfps: 24.666667 0.000141 rfps: 24.750000 0.002166 rfps: 24.750000 0.002166 rfps: 24.833333 0.011012 rfps: 32.750000 0.012804 rfps: 32.833333 0.002998 rfps: 32.833333 0.002998 rfps: 32.916667 0.000013 rfps: 32.916667 0.000013 rfps: 33.000000 0.003850 rfps: 33.083333 0.014509 rfps: 41.000000 0.009534 rfps: 41.000000 0.009534 rfps: 41.083333 0.001540 rfps: 41.083333 0.001540 rfps: 41.166667 0.000367 rfps: 41.166667 0.000367 rfps: 41.250000 0.006016 rfps: 41.333333 0.018486 rfps: 49.166667 0.019750 rfps: 49.250000 0.006746 rfps: 49.250000 0.006746 rfps: 49.333333 0.000563 rfps: 49.333333 0.000563 rfps: 49.416667 0.001202 rfps: 49.500000 0.008663 rfps: 57.416667 0.015630 rfps: 57.416667 0.015630 rfps: 57.500000 0.004438 rfps: 57.500000 0.004438 rfps: 57.583333 0.000068 rfps: 57.583333 0.000068 rfps: 57.666667 0.002519 rfps: 57.666667 0.002519 rfps: 57.750000 0.011791 rfps: 57.750000 0.011791 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x4211b3d0] File position after avformat_find_stream_info() is 548036 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/sdcard0/DCIM/Camera/VID_20160113_101209.3gp': Metadata: major_brand : 3gp4 minor_version : 0 compatible_brands: isom3gp4 creation_time : 2016-01-13 05:12:09 Duration: 00:00:05.39, start: 0.000000, bitrate: 2052 kb/s Stream #0:0(eng), 21, 1/90000: Video: mpeg4 (Advanced Simple Profile) (mp4v / 0x7634706D), yuv420p, 640x480 [SAR 1:1 DAR 4:3], 1935 kb/s, 8.21 fps, 32.92 tbr, 90k tbn, 300 tbc Metadata: rotate : 90 creation_time : 2016-01-13 05:12:09 handler_name : VideoHandle Stream #0:1(eng), 143, 1/48000: Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, s16, 127 kb/s Metadata: creation_time : 2016-01-13 05:12:09 handler_name : SoundHandle [NULL @ 0x421230a0] Unable to find a suitable output format for 'crop=280:70:176:0' crop=280:70:176:0: Invalid argument Любая помощь будет оценена.
When output video codec isn't specified, FFmpeg autoselects H.263 for 3GP container, and
Valid sizes are 128x96, 176x144, 352x288, 704x576, and 1408x1152.
Use H.264
ffmpeg -y -i /storage/VID_20.3gp -c:v libx264 -vf crop=280:70:176:0 -c:a copy -threads 5 -strict experimental -preset veryslow /storage/VID_203.3gp You have multiple issues:
ffmpeg version 0.11.1 is absolutely ancient and unsupported. You need to upgrade. You're wasting your (and our) time trying to use it and there may be security implications using it.
There is no encoder named x264. Use libx264.
Remove the quotes surrounding -codec:v.
Recent ffmpeg will automatically rotate the video and remove the rotate metadata, so that is another reason to upgrade.
Recent ffmpeg has major improvements to the AAC encoder.
Please don't use -report: the increased verbosity is usually more annoying than helpful. Just provide the default console output.