git.sesse.net Git - casparcg/blob - modules/ffmpeg/ffmpeg_error.h

   1 #pragma once\r
   2 \r
   3 #include <common/exception/exceptions.h>\r
   4 \r
   5 #include <string>\r
   6 \r
   7 #pragma warning(push, 1)\r
   8 \r
   9 extern "C" \r
  10 {\r
  11 #include <libavutil/error.h>\r
  12 }\r
  13 \r
  14 #pragma warning(pop)\r
  15 \r
  16 namespace caspar {\r
  17 \r
  18 struct ffmpeg_error : virtual caspar_exception{};\r
  19 \r
  20 static std::string av_error_str(int errn)\r
  21 {\r
  22         char buf[256];\r
  23         memset(buf, 0, 256);\r
  24         if(av_strerror(errn, buf, 256) < 0)\r
  25                 return "";\r
  26         return std::string(buf);\r
  27 }\r
  28 \r
  29 #define THROW_ON_ERROR(ret, source, func)                                                       \\r
  30         if(ret < 0)                                                                                                             \\r
  31         {                                                                                                                               \\r
  32                 BOOST_THROW_EXCEPTION(                                                                          \\r
  33                         ffmpeg_error() <<                                                                               \\r
  34                         msg_info(av_error_str(ret)) <<                                                  \\r
  35                         source_info(narrow(source)) <<                                                  \\r
  36                         boost::errinfo_api_function(func) <<                                    \\r
  37                         boost::errinfo_errno(AVUNERROR(ret)));                                  \\r
  38         }\r
  39 \r
  40 #define THROW_ON_ERROR_STR_(call) #call\r
  41 #define THROW_ON_ERROR_STR(call) THROW_ON_ERROR_STR_(call)\r
  42 \r
  43 #define THROW_ON_ERROR2(call, source)                                                                           \\r
  44         [&]() -> int                                                                                                                    \\r
  45         {                                                                                                                                               \\r
  46                 int ret = call;                                                                                                         \\r
  47                 if(ret < 0)                                                                                                                     \\r
  48                 {                                                                                                                                       \\r
  49                         BOOST_THROW_EXCEPTION(                                                                                  \\r
  50                                 ffmpeg_error() <<                                                                                       \\r
  51                                 msg_info(av_error_str(ret)) <<                                                          \\r
  52                                 source_info(narrow(source)) <<                                                          \\r
  53                                 boost::errinfo_api_function(THROW_ON_ERROR_STR(call)) <<        \\r
  54                                 boost::errinfo_errno(AVUNERROR(ret)));                                          \\r
  55                 }                                                                                                                                       \\r
  56                 return ret;                                                                                                                     \\r
  57         }();\r
  58 \r
  59 }