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• How to convert H.264 format videos to H.263 using avconv or ffmpeg tool

  15 juillet 2013, par Bagesh Sharma

  I run below given command but getting error -

  avconv -y -i song_family.mp4 -c:v h263 -s 352x288 1.mp4

  The log generated is -

  avconv version 0.8.6-6:0.8.6-1ubuntu2, Copyright (c) 2000-2013 the Libav developers built on Mar 30 2013 22:23:21 with gcc 4.7.2 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'song_family.mp4' : Metadata : major_brand : M4V minor_version : 1 compatible_brands : M4V mp42isom creation_time : 2013-02-19 22:12:33 Duration : 00:01:17.90, start : 0.000000, bitrate : 493 kb/s Stream #0.0(eng) : Video : h264 (Baseline), yuv420p, 1024x768 [PAR 1:1 DAR 4:3], 397 kb/s, 15 fps, 15 tbr, 15k tbn, 30 tbc Metadata : creation_time : 2013-02-19 22:12:33 Stream #0.1(eng) : Audio : aac, 44100 Hz, stereo, s16, 93 kb/s Metadata : creation_time : 2013-02-19 22:12:33 [buffer @ 0x98b9d00] w:1024 h:768 pixfmt:yuv420p [scale @ 0x98b9f60] w:1024 h:768 fmt:yuv420p -> w:352 h:288 fmt:yuv420p flags:0x4 [mp4 @ 0x98b8e60] track 0 : could not find tag, codec not currently supported in container Output #0, mp4, to '1.mp4' : Metadata : major_brand : M4V minor_version : 1 compatible_brands : M4V mp42isom creation_time : 2013-02-19 22:12:33 encoder : Lavf53.21.1 Stream #0.0(eng) : Video : h263, yuv420p, 352x288 [PAR 12:11 DAR 4:3], q=2-31, 200 kb/s, 90k tbn, 15 tbc Metadata : creation_time : 2013-02-19 22:12:33 Stream #0.1(eng) : Audio : libvo_aacenc, 44100 Hz, stereo, s16, 200 kb/s Metadata : creation_time : 2013-02-19 22:12:33 Stream mapping : Stream #0:0 -> #0:0 (h264 -> h263) Stream #0:1 -> #0:1 (aac -> libvo_aacenc) Could not write header for output file #0 (incorrect codec parameters ?)

• FFmpeg command to draw text hindi font is working fine in windows command prompt but Batch script and simple CPP program in NOT working

  1er juillet 2022, par Abdullah Farweez

  Below ffmpeg command in working fine in command prompt

  


  ffmpeg -i video.mp4 -filter_complex "drawtext=fontfile=Khula-regular.ttf:fontsize=60:fontcolor=blue:text=अगला एपिसोड देखने के लिए जल्दी से फॉलो करें:x=30:y=200" output.mp4


  


  giving expected result


  


  But if we run it as a bat file, it is not giving the expected output

  


      ::bat script start 
    @echo off
    ffmpeg -i video.mp4 -filter_complex "drawtext=fontfile=Khula-Regular.ttf:fontsize=60:fontcolor=blue:text=अगला एपिसोड देखने के लिए जल्दी से फॉलो करें:x=30:y=200" output.mp4
:: bat script end


  


  This the CPP program which calling the ffmpeg command via system method

  


  #include <iostream>&#xA;#include <cstring>&#xA;#include &#xA;&#xA;using namespace std;&#xA;&#xA;int main()&#xA;{&#xA;  string command = "ffmpeg.exe -i video.mp4 -filter_complex \"drawtext=fontfile=Khula-Regular.ttf:fontsize=60:fontcolor=yellow:text=अगला एपिसोड देखने के लिए जल्दी से फॉलो करें:x=30:y=200\" output.mp4";&#xA;  system(command.c_str());&#xA;  return 0;&#xA;}&#xA;</cstring></iostream>

  


  same behavior as bat script.

  


  screenshot of the output video.


  


  Here is the additional information for the references

  


  Folder structure

  


  .
|-- Khula-Regular.ttf
|-- cpp_program.exe
|-- command.cpp
|-- ffmpeg.exe
|-- ffplay.exe
|-- ffprobe.exe
|-- output.mp4
|-- run.bat
`-- video.mp4

C:\bin


  


  FFmpeg info

  


  $ ffmpeg
ffmpeg version N-107262-g4454142782-20220628 Copyright (c) 2000-2022 the FFmpeg developers
  built with gcc 11.2.0 (crosstool-NG 1.24.0.533_681aaef)
  configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32 --enable-gpl --enable-version3 --disable-debug --disable-w32threads --enable-pthreads --enable-iconv --enable-libxml2 --enable-zlib --enable-libfreetype --enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig --enable-libvorbis --enable-opencl --disable-libpulse --enable-libvmaf --disable-libxcb --disable-xlib --enable-amf --enable-libaom --enable-libaribb24 --enable-avisynth --enable-libdav1d --enable-libdavs2 --disable-libfdk-aac --enable-ffnvcodec --enable-cuda-llvm --enable-frei0r --enable-libgme --enable-libass --enable-libbluray --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librist --enable-libtheora --enable-libvpx --enable-libwebp --enable-lv2 --enable-libmfx --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopenmpt --enable-librav1e --enable-librubberband --enable-schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libsvtav1 --enable-libtwolame --enable-libuavs3d --disable-libdrm --disable-vaapi --enable-libvidstab --enable-vulkan --enable-libshaderc --enable-libplacebo --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libzimg --enable-libzvbi --extra-cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread --extra-ldexeflags= --extra-libs=-lgomp --extra-version=20220628
  libavutil      57. 27.100 / 57. 27.100
  libavcodec     59. 34.100 / 59. 34.100
  libavformat    59. 25.100 / 59. 25.100
  libavdevice    59.  6.100 / 59.  6.100
  libavfilter     8. 41.100 /  8. 41.100
  libswscale      6.  6.100 /  6.  6.100
  libswresample   4.  6.100 /  4.  6.100
  libpostproc    56.  5.100 / 56.  5.100
Hyper fast Audio and Video encoder
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...

Use -h to get full help or, even better, run 'man ffmpeg'


  


  PS : FFmpeg does not showing any error while processing in bat or cpp_program, but output is not giving in the specified font instead giving in random characters in the final output.mp4

  


• aacdec_usac : apply specification fix M55715

  12 juin 2024, par Lynne

  aacdec_usac : apply specification fix M55715
  

  • [DH] libavcodec/aac/aacdec_usac.c