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• Installing codecs for mov to mp4 conversion ffmpeg [closed]

  19 juillet 2014, par user1503606

  I have been trying to convert a .mov file to a .mp4 file for a while now i think this is the correct code to do it.

  ffmpeg  -i P1010989.MOV -vcodec copy -acodec copy out.mp4

  But here is my output

  FFmpeg version 0.6.5, Copyright (c) 2000-2010 the FFmpeg developers
  
    built on Jan 29 2012 23:55:02 with gcc 4.1.2 20080704 (Red Hat 4.1.2-51)
  
    configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --incdir=/usr/include --disable-avisynth --extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC' --enable-avfilter --enable-avfilter-lavf --enable-libdirac --enable-libfaac --enable-libfaad --enable-libfaadbin --enable-libgsm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-gpl --enable-nonfree --enable-postproc --enable-pthreads --enable-shared --enable-swscale --enable-vdpau --enable-version3 --enable-x11grab
  
    libavutil     50.15. 1 / 50.15. 1
  
    libavcodec    52.72. 2 / 52.72. 2
  
    libavformat   52.64. 2 / 52.64. 2
  
    libavdevice   52. 2. 0 / 52. 2. 0
  
    libavfilter    1.19. 0 /  1.19. 0
  
    libswscale     0.11. 0 /  0.11. 0
  
    libpostproc   51. 2. 0 / 51. 2. 0
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'P1010989.MOV':
  
    Duration: 00:00:01.00, start: 0.000000, bitrate: 11584 kb/s
  
      Stream #0.0(eng): Video: mjpeg, yuvj420p, 640x480, 11315 kb/s, 30 fps, 30 tbr, 30 tbn, 30 tbc
  
      Stream #0.1(eng): Audio: pcm_s16be, 16000 Hz, 1 channels, s16, 256 kb/s
  
  File 'out.mp4' already exists. Overwrite ? [y/N] y
  
  [mp4 @ 0x95b0080]track 1: could not find tag, codec not currently supported in container
  
  Output #0, mp4, to 'out.mp4':
  
    Metadata:
  
      encoder         : Lavf52.64.2
  
      Stream #0.0(eng): Video: mjpeg, yuvj420p, 640x480, q=2-31, 11315 kb/s, 30 tbn, 30 tbc
  
      Stream #0.1(eng): Audio: pcm_s16be, 16000 Hz, 1 channels, 256 kb/s
  
  Stream mapping:
  
    Stream #0.0 -> #0.0
  
    Stream #0.1 -> #0.1
  
  Could not write header for output file #0 (incorrect codec parameters ?)

  So i am trying to install the correct codecs and im a bit lost and do with some help.

  Do i need to install the codecs separately and where do i download and install them from ?

  Code really do with some help thanks.

• avcodec_find_encoder(AV_CODEC_ID_H264) returns null

  28 février 2017, par Monjura Rumi

  I am building an android application which will encode image captured from camera preview and later decode it. I am using ffmpeg library to encode and decode. To build static library with x264 I have used this tutorial. http://dl.dropbox.com/u/22605641/ffmpeg_android/main.html. As a source code of ffmpeg if I use the one downloaded from the link given in tutorial I can built it but can’t build library if i use source code downloaded from here git clone git ://source.ffmpeg.org/ffmpeg.git ffmpeg. I have built library in ubuntu and using it in windows 7 in Eclipse. As I need only h264 encoder and decoder I have used following code for ffmpeg, slightly modified from tutorial.

  #!/bin/bash
  
  
  
  NDK=~/Documents/android-ndk-r8e
  
  PLATFORM=$NDK/platforms/android-8/arch-arm
  
  PREBUILT=$NDK/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86
  
  PREFIX=/home/android-ffmpeg
  
  
  
  function build_one
  
  {
  
      ./configure --target-os=linux --prefix=$PREFIX \
  
      --enable-cross-compile \
  
      --enable-runtime-cpudetect \
  
      --disable-asm \
  
      --arch=arm \
  
      --cc=$PREBUILT/bin/arm-linux-androideabi-gcc \
  
      --cross-prefix=$PREBUILT/bin/arm-linux-androideabi- \
  
      --disable-stripping \
  
      --nm=$PREBUILT/bin/arm-linux-androideabi-nm \
  
      --sysroot=$PLATFORM \
  
      --enable-nonfree \
  
      --enable-version3 \
  
      --disable-everything \
  
      --enable-gpl \
  
      --disable-doc \
  
      --enable-avresample \
  
      --disable-ffplay \
  
      --disable-ffserver \
  
      --enable-ffmpeg \
  
      --disable-ffprobe \
  
      --enable-avcodec \
  
      --enable-libx264 \
  
      --enable-encoder=libx264 \
  
      --enable-encoder=libx264rgb \
  
      --enable-decoder=h263 \
  
      --enable-decoder=h264 \
  
      --enable-decoder=svq3 \   
  
      --enable-zlib \
  
      --enable-gpl \
  
      --enable-pic \
  
      --disable-devices \
  
      --disable-avdevice \
  
      --extra-cflags="-I/home/android-ffmpeg/include -fPIC -DANDROID -D__thumb__ -mthumb -Wfatal-errors -Wno-deprecated -mfloat-abi=softfp -mfpu=vfpv3-d16 -marm -march=armv7-a" \
  
      --extra-ldflags="-L/home/android-ffmpeg/lib"
  
  make -j4 install
  
  $PREBUILT/bin/arm-linux-androideabi-ar d libavcodec/libavcodec.a inverse.o
  
  $PREBUILT/bin/arm-linux-androideabi-ld -rpath-link=$PLATFORM/usr/lib -L$PLATFORM/usr/lib -L$PREFIX/lib  -soname libffmpeg.so -shared -nostdlib  -z,noexecstack -Bsymbolic --whole-archive --no-undefined -o $PREFIX/libffmpeg.so libavcodec/libavcodec.a libavfilter/libavfilter.a libavresample/libavresample.a libavformat/libavformat.a libavutil/libavutil.a libswscale/libswscale.a -lc -lm -lz -ldl -llog -lx264 --warn-once --dynamic-linker=/system/bin/linker $PREBUILT/lib/gcc/arm-linux-androideabi/4.4.3/libgcc.a
  
  }
  
  
  
  build_one

  After building library I have been able to build android ndk. A little part of my JNI code is here.

  JNIEXPORT jint JNICALL Java_com_example_testjava_TestjniActivity_initencoder(JNIEnv* env,jobject obj){
  
  
  
      av_register_all();
  
      avcodec_register_all();
  
      codec = avcodec_find_encoder(AV_CODEC_ID_H264);
  
      if (!codec) {
  
        __android_log_write(ANDROID_LOG_INFO, "debug", "not found");                
  
         return -1;
  
      }
  
  .
  
  .
  
  .
  
  }

  When I run my java source code that calls initencoder() I get -1 as return value and logcat prints "not found". That means avcodec_find_encoder() returns null and if condition is being ok. I don’t know what’s wrong. Why this function is returning null ? I have searched a lot but did not find any solution that could guide me to right direction. some says to use avcodec_init(). But ndk-build command fails and shows error saying undefined reference to ’avcodec_init()’. I have started with library build because I thought may be I am doing wrong from the first stage. Did I make any mistake in library building like not enabling things that I should ? Please help me here. This is kind of urgent for me.

• shared library built with g++ compile is works and with automake compile can not be used

  23 avril 2013, par user2310175

  I'm building a shared libraries on CentOS 6.2.
  The shared library will be build have some cpp files,headers,c shared libraries
  and ffmpeg.The shared library is used to convert videos. When i use the g++ compile like this :

  g++    DataType.h    h264function.h  h264function.cpp videoconvert.h videoconvert.cpp      stdafx.h stdafx.cpp YV12toRGB.h YV12toRGB.cpp -lMPCtrl -lavcodec -lavformat -lavutil -   lhcnetsdk -lPlayCtrl -lpthread -fPIC -shared -o libtest.so

  It can work properly,and the video can be converted as standard h264 coded.That seems the files used for building the library is

  good.But when i use the autotools to make the library,it can not work correct.Here is my configure.in and Makefile.am :

  Makefile.am :

  prefix=/usr
  
  lib_LTLIBRARIES=libhikvisiontranso.la
  
  
  
  libhikvisiontranso_la_SOURCES=stdafx.h stdafx.cpp videoconvert.h videoconvert.cpp 
  
  h264function.h h264function.cpp YV12toRGB.h YV12toRGB.cpp DataType.h 
  
  
  
  libhikvisiontranso_la_LDFLAGS=-avoid-version -shared 
  
  libhikvisiontranso_la_LIBADD=-lpthread -lMPCtrl -lhcnetsdk -lPlayCtrl -lavformat -    lavcodec -lavutil
  
  ACLOCAL_AMFLAGS= -I m4

  configure.in :

  #                                               -*- Autoconf -*-
  
  # Process this file with autoconf to produce a configure script.
  
  
  
  AC_PREREQ([2.63])
  
  AC_INIT([hikvisiontranso],[1.0], [songxiawuren@gmail.com])
  
  AM_INIT_AUTOMAKE([libhikvisiontranso.so],[1.0])
  
  AC_CONFIG_SRCDIR([DataType.h])
  
  AC_CONFIG_HEADERS([config.h])
  
  AC_CONFIG_MACRO_DIR([m4])
  
  AT_INIT
  
  # Checks for programs.
  
  AC_PROG_CXX
  
  AC_PROG_CC
  
  
  
  # Checks for libraries.
  
  
  
  # Checks for header files.
  
  AC_CHECK_HEADERS([inttypes.h limits.h stddef.h stdint.h stdlib.h string.h])
  
  
  
  # Checks for typedefs, structures, and compiler characteristics.
  
  AC_HEADER_STDBOOL
  
  AC_C_INLINE
  
  AC_TYPE_INT16_T
  
  AC_TYPE_INT32_T
  
  AC_TYPE_INT64_T
  
  AC_TYPE_INT8_T
  
  AC_TYPE_SIZE_T
  
  AC_TYPE_UINT16_T
  
  AC_TYPE_UINT32_T
  
  AC_TYPE_UINT64_T
  
  AC_TYPE_UINT8_T
  
  
  
  # Checks for library functions.
  
  AC_FUNC_MALLOC
  
  AC_PROG_LIBTOOL
  
  AC_CONFIG_FILES([Makefile])
  
  AC_OUTPUT

  The wrong output is :

  SDL Init
  
  
  
  init console=1
  
  
  
  Output #0, avi, to '/home/ningge/Desktop/HaikangDvr.avi':
  
  
  
  Stream #0.0: Invalid Codec type -1
  
  
  
  Height = 576; Width = 704;totalfram=90000
  
  
  
  Segmentation fault (core dumped)

  The right is :

  SDL Init
  
  
  
  init console=1
  
  
  
  Output #0, avi, to '/home/ningge/Desktop/HaikangDvr.avi':
  
  
  
  Stream #0.0: Video: mpeg4, yuv420p, 704x576, q=2-31, 200 kb/s, 90k tbn, 25 tbc
  
  
  
  Height = 576; Width = 704;totalfram=90000
  
  
  
  CSDLInit goOut 

  I hope someone can help me to find what's wrong with automake.