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• qsvenc : Add VDENC support for H264 and HEVC

  5 novembre 2018, par Linjie Fu

  qsvenc : Add VDENC support for H264 and HEVC
  Add VDENC(lowpower mode) support for QSV h264 and HEVC
  It’s an experimental function(like lowpower in vaapi) with
  
  some limitations :
  
   CBR/VBR require HuC which should be explicitly loaded via i915
  
  module parameter(i915.enable_guc=2 for linux kerner version >= 4.16)
  
   HEVC VDENC was supported >= ICE LAKE
  use option "-low_power 1" to enable VDENC.
  Signed-off-by : Linjie Fu <linjie.fu@intel.com>
  

  • [DBH] libavcodec/qsvenc.c
  • [DBH] libavcodec/qsvenc.h
  • [DBH] libavcodec/qsvenc_h264.c
  • [DBH] libavcodec/qsvenc_hevc.c

• FFMpeg with PHP-7.0 on Ubuntu

  25 octobre 2018, par Gabriel Bueno Lemes da Silva

  I have a NGINX server with PHP-7.0 and I would like to install the ffmpeg-php extension. I’ve been trying for a few days now and in many ways.

  The method that worked so far was compiling ffmpeg (https://ffmpeg.org/releases/ffmpeg-4.0.2.tar.bz2) manually, but when trying to compile ffmpeg-php (https: // sourceforge. net / projects / ffmpeg-php / files / ffmpeg-php / 0.6.0 / ffmpeg-php-0.6.0.tbz2 / download) I am encountering the following error message :

  root@zumbiserver-mercury : /php7-ffmpeg# make /bin/bash

  /root/php7-ffmpeg/libtool —mode=compile cc -I. -I/root/php7-ffmpeg
  -DPHP_ATOM_INC -I/root/php7-ffmpeg/include -I/root/php7-ffmpeg/main -I/root/php7-ffmpeg -I/usr/include/php/20151012 -I/usr/include/php/20151012/main -I/usr/include/php/20151012/TSRM -I/usr/include/php/20151012/Zend -I/usr/include/php/20151012/ext -I/usr/include/php/20151012/ext/date/lib -I/usr/local/include/libavcodec/ -I/usr/local/include/libavformat/ -I/usr/local/include/libavutil/ -I/usr/local/include/libswscale/ -I/usr/local/include/libavfilter/ -I/usr/local/include/libavdevice/ -DHAVE_CONFIG_H -g -O2 -Wall -fno-strict-aliasing -c /root/php7-ffmpeg/ffmpeg-php.c -o ffmpeg-php.lo libtool : compile : cc
  -I. -I/root/php7-ffmpeg -DPHP_ATOM_INC -I/root/php7-ffmpeg/include -I/root/php7-ffmpeg/main -I/root/php7-ffmpeg -I/usr/include/php/20151012 -I/usr/include/php/20151012/main -I/usr/include/php/20151012/TSRM -I/usr/include/php/20151012/Zend -I/usr/include/php/20151012/ext -I/usr/include/php/20151012/ext/date/lib -I/usr/local/include/libavcodec/ -I/usr/local/include/libavformat/ -I/usr/local/include/libavutil/ -I/usr/local/include/libswscale/ -I/usr/local/include/libavfilter/ -I/usr/local/include/libavdevice/ -DHAVE_CONFIG_H -g -O2 -Wall -fno-strict-aliasing -c /root/php7-ffmpeg/ffmpeg-php.c -fPIC -DPIC -o .libs/ffmpeg-php.o In
  file included from /usr/include/x86_64-linux-gnu/sys/stat.h:104:0,
  from /usr/include/php/20151012/Zend/zend_stream.h:28,
  from /usr/include/php/20151012/Zend/zend.h:41,
  from /usr/include/php/20151012/main/php.h:36,
  from /root/php7-ffmpeg/ffmpeg-php.c:40 : /usr/include/x86_64-linux-gnu/bits/stat.h:91:21 : error : field
  ‘st_atim’ has incomplete type
  struct timespec st_atim ; /* Time of last access. /
  ^ /usr/include/x86_64-linux-gnu/bits/stat.h:92:21 : error : field
  ‘st_mtim’ has incomplete type
  struct timespec st_mtim ; / Time of last modification. /
  ^ /usr/include/x86_64-linux-gnu/bits/stat.h:93:21 : error : field
  ‘st_ctim’ has incomplete type
  struct timespec st_ctim ; / Time of last status change. /
  ^ /usr/include/x86_64-linux-gnu/bits/stat.h:152:21 : error : field
  ‘st_atim’ has incomplete type
  struct timespec st_atim ; / Time of last access. /
  ^ /usr/include/x86_64-linux-gnu/bits/stat.h:153:21 : error : field
  ‘st_mtim’ has incomplete type
  struct timespec st_mtim ; / Time of last modification. /
  ^ /usr/include/x86_64-linux-gnu/bits/stat.h:154:21 : error : field
  ‘st_ctim’ has incomplete type
  struct timespec st_ctim ; / Time of last status change. /
  ^ In file included from /usr/include/php/20151012/Zend/zend_stream.h:28:0,
  from /usr/include/php/20151012/Zend/zend.h:41,
  from /usr/include/php/20151012/main/php.h:36,
  from /root/php7-ffmpeg/ffmpeg-php.c:40 : /usr/include/x86_64-linux-gnu/sys/stat.h:364:31 : error : array type has
  incomplete element type ‘struct timespec’
  const struct timespec __times[2],
  ^ /usr/include/x86_64-linux-gnu/sys/stat.h:371:54 : error : array type has
  incomplete element type ‘struct timespec’ extern int futimens (int
  __fd, const struct timespec __times[2]) __THROW ;
  ^ In file included from /usr/include/php/20151012/main/php.h:395:0,
  from /root/php7-ffmpeg/ffmpeg-php.c:40 : /usr/include/php/20151012/Zend/zend_virtual_cwd.h:218:2 : error :
  unknown type name ‘time_t’ time_t expires ;
  ^ /usr/include/php/20151012/Zend/zend_virtual_cwd.h:248:86 : error :
  unknown type name ‘time_t’ CWD_API realpath_cache_bucket
  realpath_cache_lookup(const char *path, int path_len, time_t t) ;
  ^ /root/php7-ffmpeg/ffmpeg-php.c : In function ‘zm_startup_ffmpeg’ :
  /root/php7-ffmpeg/ffmpeg-php.c:108:5 : warning : implicit declaration of
  function ‘avcodec_init’ [-Wimplicit-function-declaration]
  avcodec_init() ;
  ^ /root/php7-ffmpeg/ffmpeg-php.c:111:5 : warning : ‘av_register_all’ is deprecated [-Wdeprecated-declarations]
  av_register_all() ;
  ^ In file included from /root/php7-ffmpeg/ffmpeg-php.c:43:0 : /usr/local/include/libavformat/avformat.h:2025:6 : note : declared here
  void av_register_all(void) ;

    ^ Makefile:194: recipe for target 'ffmpeg-php.lo' failed make: *** [ffmpeg-php.lo] Error 1

  Can someone give me a light ? I do not know what else to do !

• optimize hevc_toolbox encoding to look like x265 encoding in ffmeg

  23 juillet 2021, par Misha

  I am encoding videos from h264 to h265 using ffmpeg. First I used the x265 software version for a 30 sec movie clip reducing the file size from 18Mb to 2Mb and got the following still-frame result in 45 sec


  



  Next I used the hevc_videotoolbox hardware accelerated version, first going from 18 to 1.6 Mb and the results were so poor I decided to up the bitrate to 1.5Mbit/s, thus getting a 5.7Mb file in 12 sec. However, the result is clearly inferior to the x265 version despite the almost 3x increase in filesize.

  



  

  



  Any ideas if it is possible to improve the hevc_toolbox quality and still retain the speed advantage ?

  



  ffmpeg -i test.mp4 -an -c:v libx265 -vtag hvc1 -y test_x265.mp4 

ffmpeg -i test.mp4 -an -c:v hevc_videotoolbox -vtag hvc1 -y -b:v 1.5M test_vt.mp4


  



  I am on a MB pro late 2017 version with kaby lake