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• arm-linux-androideabi/bin/ld : error : cannot find -lpolarssl while compiling rtmp library for Android (host os -Debian)

  24 octobre 2014, par trololo

  I’m trying to build rtmp library for ffmpeg for my Android app.
  In order to compile ffmpeg I have to compile rtmp-library.
  For librtmp.a I need to compile polarssl. I got polarssl library (libpolarssl, -lpolarssl)
  script for polarssl :

   #!/bin/bash
  
  ANDROID_NDK=/home/sla/work/android-ndk-r10b86/android-ndk-r10b/
  
  TOOLCHAIN=/home/sla/ffmpeg_build/polarssl/
  
  $ANDROID_NDK/build/tools/make-standalone-toolchain.sh --toolchain=arm-linux-androideabi-4.8 \
  
    --system=linux-x86 --platform=android-3 --install-dir=$TOOLCHAIN
  
  cd /home/sla/ffmpeg_sources/polarssl-1.2.11
  
  
  
  export CROSS_COMPILE=arm-linux-androideabi
  
  export CC="${CROSS_COMPILE}-gcc"
  
  export CXX="${CROSS_COMPILE}-g++"
  
  
  
  export PATH=$TOOLCHAIN/bin:$PATH
  
  #export CC="arm-linux-androideabi-gcc"
  
  #export CXX="arm-linux-androideabi-g++"
  
  export LD=arm-linux-androideabi-ld
  
  export STRIP=arm-linux-androideabi-strip
  
  
  
  export CFLAGS="-std=c99 -O3 -Wall -mthumb -pipe -fpic -fasm \
  
    -march=armv7-a -mfpu=neon -mfloat-abi=hard -mvectorize-with-neon-quad \
  
    -finline-limit=300 -ffast-math -fmodulo-sched -fmodulo-sched-allow-regmoves \
  
    -mhard-float -D_NDK_MATH_NO_SOFTFP=1 -fdiagnostics-color=always \
  
    -Wno-psabi -Wa,--noexecstack \
  
    -D__ARM_ARCH_5__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5TE__ \
  
    -DANDROID -DNDEBUG"
  
  
  
  export LDFLAGS="-lm_hard -lz -Wl,--no-undefined -Wl,-z,noexecstack -Wl,--fix-cortex-a8 -Wl,--no-warn-mismatch"
  
  #cd /home/sla/ffmpeg_sources
  
  #autoreconf -fiv
  
  #./configure --host=arm-linux-androideabi --prefix="`pwd`/build/"
  
  #--disable-shared
  
  #rm -r build
  
  make lib -j7 SYS=android CC="$CC" APP=
  
  make install DESTDIR=/home/sla/ffmpeg_sources/polarssl

  It works fine and creates correspond lirary but when I try to compile rtmplib (rtmpdump) using script

  #!/bin/bash
  
  ANDROID_NDK=/home/sla/work/android-ndk-r10b86/android-ndk-r10b/
  
  TOOLCHAIN=/home/sla/ffmpeg_build/rtmp/
  
  $ANDROID_NDK/build/tools/make-standalone-toolchain.sh --toolchain=arm-linux-androideabi-4.8 \
  
    --system=linux-x86 --platform=android-3 --install-dir=$TOOLCHAIN
  
  cd /home/sla/ffmpeg_sources/rtmpdump
  
  
  
  export CROSS_COMPILE=arm-linux-androideabi
  
  #export CC=${CROSS_COMPILE}-gcc
  
  #export CXX=${CROSS_COMPILE}-g++
  
  
  
  export PATH=$TOOLCHAIN/bin:$PATH
  
  export CC="arm-linux-androideabi-gcc"
  
  export CXX="arm-linux-androideabi-g++"
  
  export LD=arm-linux-androideabi-ld
  
  export STRIP=arm-linux-androideabi-strip
  
  
  
  export CFLAGS="-std=c99 -O3 -Wall -mthumb -pipe -fpic -fasm \
  
    -march=armv7-a -mfpu=neon -mfloat-abi=hard -mvectorize-with-neon-quad \
  
    -finline-limit=300 -ffast-math -fmodulo-sched -fmodulo-sched-allow-regmoves \
  
    -mhard-float -D_NDK_MATH_NO_SOFTFP=1 -fdiagnostics-color=always \
  
    -Wno-psabi -Wa,--noexecstack \
  
    -D__ARM_ARCH_5__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5TE__ \
  
    -DANDROID -DNDEBUG"
  
  
  
  export LDFLAGS="-lm_hard -lz -Wl,--no-undefined -Wl,-z,noexecstack -Wl,--fix-cortex-a8 -Wl,--no-warn-mismatch"
  
  #cd /home/sla/ffmpeg_sources
  
  #autoreconf -fiv
  
  #./configure --host=arm-linux-androideabi --prefix="`pwd`/build/"
  
  #--disable-shared
  
  rm -r build
  
  make -j7 SYS=android CROSS_COMPILE=arm-linux-androideabi- INC="-I/home/sla/ffmpeg_sources/polarssl-1.2.11/include/ -L/home/sla/ffmpeg_sources/polarssl-1.2.11/library/" CRYPTO=POLARSSL SHARED=
  
  make install
  
  make distclean

  I recieve such error :

  /home/sla/ffmpeg_build/rtmp/bin/../lib/gcc/arm-linux-androideabi/4.8/../../../../arm-linux-androideabi/bin/ld: error: cannot find -lpolarssl

  More :

  Copying prebuilt binaries...
  
  Copying sysroot headers and libraries...
  
  Copying c++ runtime headers and libraries...
  
  Copying files to: /home/sla/ffmpeg_build/rtmp/
  
  Cleaning up...
  
  Done.
  
  rm: cannot remove `build': No such file or directory
  
  make[1]: Entering directory `/home/sla/ffmpeg_sources/rtmpdump/librtmp'
  
  make[1]: Nothing to be done for `all'.
  
  make[1]: Leaving directory `/home/sla/ffmpeg_sources/rtmpdump/librtmp'
  
  arm-linux-androideabi-gcc -Wall  -o rtmpdump rtmpdump.o -Llibrtmp -lrtmp -lpolarssl -lz  
  
  arm-linux-androideabi-gcc -Wall  -o rtmpgw rtmpgw.o thread.o  -Llibrtmp -lrtmp -lpolarssl -lz  
  
  arm-linux-androideabi-gcc -Wall  -o rtmpsrv rtmpsrv.o thread.o  -Llibrtmp -lrtmp -lpolarssl -lz  
  
  arm-linux-androideabi-gcc -Wall  -o rtmpsuck rtmpsuck.o thread.o  -Llibrtmp -lrtmp -lpolarssl -lz  
  
  /home/sla/ffmpeg_build/rtmp/bin/../lib/gcc/arm-linux-androideabi/4.8/../../../../arm-linux-androideabi/bin/ld: error: cannot find -lpolarssl
  
  librtmp/librtmp.a(rtmp.o):rtmp.c:function isValidPublicKey: error: undefined reference to 'mpi_init'
  
  librtmp/librtmp.a(rtmp.o):rtmp.c:function isValidPublicKey: error: undefined reference to 'mpi_lset'
  
  librtmp/librtmp.a(rtmp.o):rtmp.c:function isValidPublicKey: error: undefined reference to 'mpi_cmp_mpi'
  
  librtmp/librtmp.a(rtmp.o):/rtmp.c:function homeisValidPublicKey/:sla /errorffmpeg_build:/ rtmpundefined/ binreference/ .to. /'libmpi_copy/'gcc
  
  /librtmparm/-librtmp.alinux(-rtmp.oandroideabi)/:4.8rtmp.c/:.function. /isValidPublicKey.:. /error.:. /undefined. .reference/ armto- linux'-mpi_sub_intandroideabi'/
  
  binlibrtmp//ldlibrtmp.a:( rtmp.oerror):: rtmp.ccannot: functionfind  isValidPublicKey-:lpolarssl 
  
  errorlibrtmp:/ librtmp.aundefined( rtmp.oreference) :tortmp.c :'functionmpi_cmp_mpi 'isValidPublicKey
  
  :librtmp /errorlibrtmp.a:( rtmp.oundefined) :referencertmp.c :tofunction  'isValidPublicKeympi_init:' 
  
  errorlibrtmp:/ librtmp.aundefined( rtmp.oreference) :tortmp.c :'functionmpi_exp_mod 'isValidPublicKey
  
  :librtmp /errorlibrtmp.a:( rtmp.oundefined) :referencertmp.c :tofunction  'isValidPublicKeympi_lset:' 
  
  errorlibrtmp:/ librtmp.aundefined( rtmp.oreference) :tortmp.c :'functionmpi_cmp_int 'isValidPublicKey
  
  :librtmp /errorlibrtmp.a:( rtmp.oundefined) :referencertmp.c :tofunction  'isValidPublicKeympi_cmp_mpi:' 
  
  errorlibrtmp:/ librtmp.aundefined( rtmp.oreference) :tortmp.c :'functionmpi_free 'isValidPublicKey
  
  :librtmp /errorlibrtmp.a:( rtmp.oundefined) :referencertmp.c :tofunction  'DHGenerateKeympi_copy:' 
  
  errorlibrtmp:/ librtmp.aundefined( rtmp.oreference) :tortmp.c :'functionmpi_copy 'isValidPublicKey
  
  :librtmp /errorlibrtmp.a:( rtmp.oundefined) :referencertmp.c :tofunction  'DHGenerateKeympi_sub_int:' 
  
  errorlibrtmp:/ librtmp.aundefined( rtmp.oreference) :tortmp.c :'functionmpi_copy 'isValidPublicKey
  
  :librtmp /errorlibrtmp.a:( rtmp.oundefined) :referencertmp.c :tofunction  'DHGenerateKeympi_cmp_mpi:' 

  ETC..... A LOT OF ERRORS

  Hot to fix this error ?

• Add partial_tukey and punchout_tukey apodization functions

  10 août 2014, par Martijn van Beurden

  Add partial_tukey and punchout_tukey apodization functions
  Adds two new apodization functions that seem to perform better than
  
  the apodization functions currently in the codebase and fixes three
  
  existing windows as well.
  Its important to note that this patch only affects the encoder stage
  
  that evaluates various possible predictors. Audio encoded with these
  
  new windows will still decode with existing legacy decoders.
  = Theory =
  
  These functions are used to window the  audio data at the predictor
  
  stage. These news functions enable the use of only part of the signal
  
  to generate a predictor. This helps  because short transients can
  
  introduce noise into the predictor. The  predictor becomes very good
  
  at prediciting one part of the  signal, instead of mediocre for the
  
  whole block.
  Signed-off-by : Erik de Castro Lopo <erikd@mega-nerd.com>
  

  • [DH] doc/html/documentation_tools_flac.html
  • [DH] include/FLAC/stream_encoder.h
  • [DH] man/flac.1
  • [DH] man/flac.sgml
  • [DH] src/libFLAC/include/private/window.h
  • [DH] src/libFLAC/include/protected/stream_encoder.h
  • [DH] src/libFLAC/stream_encoder.c
  • [DH] src/libFLAC/window.c

• HLS MPEG-TS metadata stream using FFMPEG

  20 janvier 2015, par Ramesh Prasad

  I want to create mpeg ts segment for HLS streaming. The ts should contain metadata as a separate stream as shown below-

  **Stream #0:0**[0x102]: Data: timed_id3 (ID3  / 0x20334449) 
  
  **Stream #0:1**[0x100]: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p, 426x240, 25 fps, 25 tbr, 90k tbn, 6k tbc
  
  **Stream #0:2**[0x101]: Audio: aac ([15][0][0][0] / 0x000F), 44100 Hz, stereo, fltp, 98 kb/s

  I am using ffmpeg and have tried various option. I get the following ts structure-

  **service_name**    : Service01
  
  **service_provider**: FFmpeg
  
  **Stream #0:0[0x100]**: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv), 720x576 [SAR 1:1 DAR 5:4], max. 104857 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
  
  **Stream #0:1[0x101]**: Audio: mp2 ([3][0][0][0] / 0x0003), 16000 Hz, mono, s16p, 143 kb/s

  using the following command-

  ffmpeg -i news.ts -t 10 -metadata:s:v:0 TITLE="Some Provider" -id3v2_version 4 -write_id3v1 1 segid3.ts

  How to get the metadata as a separate stream in the ts file using ffmpeg ?