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• lavfi/af_channelmap : fix memory leak

  4 décembre 2015, par Ganesh Ajjanagadde

  lavfi/af_channelmap : fix memory leak
  Recent commits 6aaac24d72a7da631173209841a3944fcb4a3309 and
  
  3835554bf8ed78539a3492c239f979c0ab03a15f made progress towards cleaning
  
  up usage of the formats API, and in particular fixed possible NULL pointer
  
  dereferences.
  This commit addresses the issue of possible resource leaks when some intermediate
  
  call fails.
  Tested with valgrind —leak-check=full —show-leak-kinds=all, and manual simulation
  
  of malloc/realloc failures.
  Fixes : CID 1338330.
  Reviewed-by : Paul B Mahol <onemda@gmail.com>
  
  Signed-off-by : Ganesh Ajjanagadde <gajjanagadde@gmail.com>
  

  • [DH] libavfilter/af_channelmap.c

• lavfi/af_amix : fix memory leak

  4 décembre 2015, par Ganesh Ajjanagadde

  lavfi/af_amix : fix memory leak
  Recent commits 6aaac24d72a7da631173209841a3944fcb4a3309 and
  
  3835554bf8ed78539a3492c239f979c0ab03a15f made progress towards cleaning
  
  up usage of the formats API, and in particular fixed possible NULL pointer
  
  dereferences.
  This commit addresses the issue of possible resource leaks when some intermediate
  
  call fails.
  Tested with valgrind —leak-check=full —show-leak-kinds=all, and manual simulation
  
  of malloc/realloc failures.
  Fixes : CID 1250334.
  Signed-off-by : Ganesh Ajjanagadde <gajjanagadde@gmail.com>
  

  • [DH] libavfilter/af_amix.c

• FFmpeg av_register_all() memory leak

  1er septembre 2015, par Joe Allen

  I made a conversion function and I started to figure out the memory leaks.I started by make a small program to figure out the leaks but for some reason av_register_all() is also getting a memory leak. Is there something that I am suppose to free ?

  main.cpp :

  #include 
  
  #include <string>
  
  #include <queue>   
  
  #include <deque>
  
  #include <iostream>
  
  
  
  //#ifdef __cplusplus
  
  extern "C" {    
  
  #ifndef __STDC_CONSTANT_MACROS
  
  #define __STDC_CONSTANT_MACROS
  
  #endif
  
  #include <libavformat></libavformat>avformat.h>
  
  #include <libavcodec></libavcodec>avcodec.h>
  
  #include <libswresample></libswresample>swresample.h>
  
  #include <libswscale></libswscale>swscale.h>
  
  #include <libavutil></libavutil>channel_layout.h>
  
  #include <libavutil></libavutil>common.h>
  
  #include <libavutil></libavutil>imgutils.h>
  
  #include <libavutil></libavutil>mathematics.h>
  
  #include <libavutil></libavutil>avassert.h>
  
  #include <libavutil></libavutil>avstring.h>
  
  #include <libavutil></libavutil>frame.h>
  
  #include <libavutil></libavutil>opt.h>
  
  #include <libavutil></libavutil>samplefmt.h>
  
  #include <libavutil></libavutil>timestamp.h>
  
  #include <libavfilter></libavfilter>avfilter.h> 
  
  #include <libavfilter></libavfilter>buffersrc.h> 
  
  #include <libavfilter></libavfilter>buffersink.h> 
  
  #include <libavutil></libavutil>dict.h>
  
  }
  
  
  
  
  
  int main (int argc, char ** argv){
  
      AVFrame *frame;
  
      AVFrame *filteredFrame;
  
      AVPacket pkt;
  
  
  
      //Initialize all codecs
  
      av_register_all();
  
  }
  
  </iostream></deque></queue></string>

  Output from valgrind :

  ==31165== HEAP SUMMARY:
  
  ==31165==     in use at exit: 81 bytes in 2 blocks
  
  ==31165==   total heap usage: 4 allocs, 2 frees, 167 bytes allocated
  
  ==31165== 
  
  ==31165== Searching for pointers to 2 not-freed blocks
  
  ==31165== Checked 9,196,888 bytes
  
  ==31165== 
  
  ==31165== 32 bytes in 1 blocks are still reachable in loss record 1 of 2
  
  ==31165==    at 0x4C2CC70: calloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
  
  ==31165==    by 0x6DE768F: _dlerror_run (dlerror.c:141)
  
  ==31165==    by 0x6DE70C0: dlopen@@GLIBC_2.2.5 (dlopen.c:87)
  
  ==31165==    by 0x8DC7273: x265_api_get_63 (in /usr/local/lib/libx265.so.63)
  
  ==31165==    by 0x5958E74: ??? (in /usr/local/lib/libavcodec.so.56.41.100)
  
  ==31165==    by 0x59D76B1: avcodec_register_all (in /usr/local/lib/libavcodec.so.56.41.100)
  
  ==31165==    by 0x4E6B342: av_register_all (in /usr/local    /lib/libavformat.so.56.36.100)
  
  ==31165==    by 0x400830: main (main.cpp:39)
  
  ==31165== 
  
  ==31165== 49 bytes in 1 blocks are still reachable in loss record 2 of 2
  
  ==31165==    at 0x4C2AB80: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
  
  ==31165==    by 0x400FDC0: _dl_signal_error (dl-error.c:90)
  
  ==31165==    by 0x40146CF: _dl_open (dl-open.c:715)
  
  ==31165==    by 0x6DE702A: dlopen_doit (dlopen.c:66)
  
  ==31165==    by 0x400FFF3: _dl_catch_error (dl-error.c:187)
  
  ==31165==    by 0x6DE762C: _dlerror_run (dlerror.c:163)
  
  ==31165==    by 0x6DE70C0: dlopen@@GLIBC_2.2.5 (dlopen.c:87)
  
  ==31165==    by 0x8DC7273: x265_api_get_63 (in /usr/local/lib/libx265.so.63)
  
  ==31165==    by 0x5958E74: ??? (in /usr/local/lib/libavcodec.so.56.41.100)
  
  ==31165==    by 0x59D76B1: avcodec_register_all (in /usr/local/lib/libavcodec.so.56.41.100)
  
  ==31165==    by 0x4E6B342: av_register_all (in /usr/local/lib/libavformat.so.56.36.100)
  
  ==31165==    by 0x400830: main (main.cpp:39)
  
  ==31165== 
  
  ==31165== LEAK SUMMARY:
  
  ==31165==    definitely lost: 0 bytes in 0 blocks
  
  ==31165==    indirectly lost: 0 bytes in 0 blocks
  
  ==31165==      possibly lost: 0 bytes in 0 blocks
  
  ==31165==    still reachable: 81 bytes in 2 blocks
  
  ==31165==         suppressed: 0 bytes in 0 blocks
  
  ==31165== 
  
  ==31165== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
  
  ==31165== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)