Sur d’autres sites (2374)

• FFMPEG disabled automatic compression file

  2 novembre 2017, par HenrykVIII

  How to disable FFMPEG in its own compressed file compression, which does not come from the program code. This is when the file is merged (as the first task) or file stabilization (as the first task). I lose on file quality by reducing itself from 16k to 7k birate files (in parts) input.

  So, without loss, I have to merge files or stabilize them so that they do not change ?

  I will add that the effect does not affect every film - only the majority. None of which come out of a duel completely and eg for 16.2k input birate have output 16k birate .. What is no visible loss.

  But the loss from 16k to 7k is already visible on the details and especially the movies shot at night and in the wrong light.

  I enclose the wrapper code c # :
   
  The same situation occurs when the first task is to combine files :

  Can anyone help ?? : (((

• What is the best solution to convert old videos to newer more optimised formats ? [on hold]

  9 septembre 2019, par Jack

  Not too sure if this is the wrong place - please move it as I couldn’t find a more suitable network

  I have loads of media (Movies, TV Shows) as well as home videos (old VHS stuff ripped using some awful VHS to digital kit)

  Most of the movies/TV shows are in H264 (MP4/MKV containers) format, however some older ones are in AVI and WMV - I’d like to convert these into either H264 or a newer format (HEVC ?) To save some disk space and also because WMVs and AVIs are getting harder to deal with nowadays. I’m concerned about losing quality and am wondering what would be the best compromise in terms of converting these to HEVC/MPEG4’s encoder quality settings as compared to the data savings.

  The media collection of TV shows/movies, I don’t mind too much about losing some quality but the home videos/VHS tapes I have in old file formats, the storage factor for these is less important but I was wondering what I’d need to do to convert old AVI’s/MPEG2’s to MPEG4/HEVC - mainly if it is possible to convert one of these old video files to a newer format, without loss of quality, I thought the newer video encoding’s had lossless and lossy compression, but I could be completely wrong and don’t know much about video codecs.

  I was more curious on the best solution to do this as, Googling it gives me loads of commercial software and I’d rather have something which I can use command line/programmatically against my entire libraries. I also couldn’t find anything on these commercial sites about the technicals of re-encoding video so, was wondering if anyone had any experience with any command line applications/have an understanding of the video codecs.

• Error while trying to compress a 10 sec video on react-native

  10 novembre 2017, par Kamil Kamili

  I am currently using the library react-native-video-processing to compress a 10 sec video on android. But this is the error I get while trying to compress it.

  Any ideas suggestions ?

  Possible Unhandled Promise Rejection (id : 0) : Error : compress error :
  failed. ffmpeg version 3.3.5 Copyright (c) 2000-2017 the FFmpeg
  developers built with gcc 4.8 (GCC) configuration : —target-os=linux
  —cross-prefix=/Users/kesha/Projects/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi-
  —arch=arm —cpu=cortex-a8 —enable-runtime-cpudetect —sysroot=/Users/kesha/Projects/ffmpeg-android/toolchain-android/sysroot
  —enable-libx264 —enable-pthreads —disable-debug —disable-ffserver —enable-version3 —enable-hardcoded-tables —disable-ffplay —disable-ffprobe —enable-yasm —disable-doc —disable-shared —enable-static —enable-nonfree —disable-network —enable-gpl —enable-ffmpeg —enable-small —disable-filters —enable-filter=copy —enable-filter=trim —enable-filter=crop —enable-filter=scale —enable-filter=format —pkg-config=/Users/kesha/Projects/ffmpeg-android/ffmpeg-3.3-pkg-config —prefix=/Users/kesha/Projects/ffmpeg-android/build/armeabi-v7a —extra-cflags=’-I/Users/kesha/Projects/ffmpeg-android/toolchain-android/include
  -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all’ —extra-ldflags=’-L/Users/kesha/Projects/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie’ —extra-cxxflags= —extra-libs=’-lx264 -lm’ libavutil 55. 58.100 / 55. 58.100 libavcodec 57. 89.100 / 57. 89.100 libavformat 57. 71.100 / 57. 71.100 libavdevice 57. 6.100 / 57. 6.100 libavfilter 6. 82.100 /
  6. 82.100 libswscale 4. 6.100 / 4. 6.100 libswresample 2. 7.100 / 2. 7.100 libpostproc 54. 5.100 / 54. 5.100Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
  ’file :///storage/emulated/0/Movies/VID_20171110_195700.mp4’ :
  Metadata : major_brand : mp42 minor_version : 0
  compatible_brands : isommp42 creation_time :
  2017-11-10T16:57:05.000000Z com.android.version : 7.1.1 Duration :
  00:00:03.10, start : 0.000000, bitrate : 2094 kb/s Stream #0:0(eng) :
  Video : h264 (avc1 / 0x31637661), yuvj420p(pc, smpte170m), 720x480,
  1991 kb/s, SAR 1:1 DAR 3:2, 30 fps, 30 tbr, 90k tbn, 180k tbc
  (default) Metadata : rotate : 270 creation_time
   : 2017-11-10T16:57:05.000000Z handler_name : VideoHandle
  Side data : displaymatrix : rotation of 90.00 degrees Stream

  0:1(eng) : Audio : aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 95 kb/s (default) Metadata : creation_time :

  2017-11-10T16:57:05.000000Z handler_name : SoundHandleStream
  mapping : Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  Stream #0:1 -> #0:1 (aac (native) -> aac (native))Press [q] to stop,
  [?] for helpError reinitializing filters !Failed to inject frame into
  filter network : Out of memoryError while processing the decoded data
  for stream #0:0[aac @ 0xf6f04c00] Qavg : 12036.106[aac @ 0xf6f04c00] 2
  frames left in the queue on closingConversion failed ! Error : compress
  error : failed. ffmpeg version 3.3.5 Copyright (c) 2000-2017 the FFmpeg
  developers built with gcc 4.8 (GCC) configuration : —target-os=linux
  —cross-prefix=/Users/kesha/Projects/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi-
  —arch=arm —cpu=cortex-a8 —enable-runtime-cpudetect —sysroot=/Users/kesha/Projects/ffmpeg-android/toolchain-android/sysroot
  —enable-libx264 —enable-pthreads —disable-debug —disable-ffserver —enable-version3 —enable-hardcoded-tables —disable-ffplay —disable-ffprobe —enable-yasm —disable-doc —disable-shared —enable-static —enable-nonfree —disable-network —enable-gpl —enable-ffmpeg —enable-small —disable-filters —enable-filter=copy —enable-filter=trim —enable-filter=crop —enable-filter=scale —enable-filter=format —pkg-config=/Users/kesha/Projects/ffmpeg-android/ffmpeg-3.3-pkg-config —prefix=/Users/kesha/Projects/ffmpeg-android/build/armeabi-v7a —extra-cflags=’-I/Users/kesha/Projects/ffmpeg-android/toolchain-android/include
  -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all’ —extra-ldflags=’-L/Users/kesha/Projects/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie’ —extra-cxxflags= —extra-libs=’-lx264 -lm’ libavutil 55. 58.100 / 55. 58.100 libavcodec 57. 89.100 / 57. 89.100 libavformat 57. 71.100 / 57. 71.100 libavdevice 57. 6.100 / 57. 6.100 libavfilter 6. 82.100 /
  6. 82.100 libswscale 4. 6.100 / 4. 6.100 libswresample 2. 7.100 / 2. 7.100 libpostproc 54. 5.100 / 54. 5.100Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
  ’file :///storage/emulated/0/Movies/VID_20171110_195700.mp4’ :
  Metadata : major_brand : mp42 minor_version : 0
  compatible_brands : isommp42 creation_time :
  2017-11-10T16:57:05.000000Z com.android.version : 7.1.1 Duration :
  00:00:03.10, start : 0.000000, bitrate : 2094 kb/s Stream #0:0(eng) :
  Video : h264 (avc1 / 0x31637661), yuvj420p(pc, smpte170m), 720x480,
  1991 kb/s, SAR 1:1 DAR 3:2, 30 fps, 30 tbr, 90k tbn, 180k tbc
  (default) Metadata : rotate : 270 creation_time
   : 2017-11-10T16:57:05.000000Z handler_name : VideoHandle
  Side data : displaymatrix : rotation of 90.00 degrees Stream

  0:1(eng) : Audio : aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 95 kb/s (default) Metadata : creation_time :

  2017-11-10T16:57:05.000000Z handler_name : SoundHandleStream
  mapping : Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  Stream #0:1 -> #0:1 (aac (native) -> aac (native))Press [q] to stop,
  [?] for helpError reinitializing filters !Failed to inject frame into
  filter network : Out of memoryError while processing the decoded data
  for stream #0:0[aac @ 0xf6f04c00] Qavg : 12036.106[aac @ 0xf6f04c00] 2
  frames left in the queue on closingConversion failed !
  at createErrorFromErrorData (http://localhost:8081/index.bundle?platform=android&dev=true&minify=false:1807:15)
  at http://localhost:8081/index.bundle?platform=android&dev=true&minify=false:1760:25
  at MessageQueue.__invokeCallback (http://localhost:8081/index.bundle?platform=android&dev=true&minify=false:2118:16)
  at http://localhost:8081/index.bundle?platform=android&dev=true&minify=false:1935:16
  at MessageQueue.__guard (http://localhost:8081/index.bundle?platform=android&dev=true&minify=false:2053:9)
  at MessageQueue.invokeCallbackAndReturnFlushedQueue (http://localhost:8081/index.bundle?platform=android&dev=true&minify=false:1934:12)
  at http://localhost:8081/debugger-ui/debuggerWorker.js:72:58