git.sesse.net Git - casparcg/blob - modules/ffmpeg/ffmpeg.cpp

   1 /*
   2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
   3 *
   4 * This file is part of CasparCG (www.casparcg.com).
   5 *
   6 * CasparCG is free software: you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License as published by
   8 * the Free Software Foundation, either version 3 of the License, or
   9 * (at your option) any later version.
  10 *
  11 * CasparCG is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 * GNU General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU General Public License
  17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
  18 *
  19 * Author: Robert Nagy, ronag89@gmail.com
  20 */
  21
  22 #include "StdAfx.h"
  23
  24 #include "ffmpeg.h"
  25
  26 #include "consumer/ffmpeg_consumer.h"
  27 #include "producer/ffmpeg_producer.h"
  28 #include "producer/util/util.h"
  29
  30 #include <common/log.h>
  31 #include <common/os/general_protection_fault.h>
  32
  33 #include <core/consumer/frame_consumer.h>
  34 #include <core/frame/draw_frame.h>
  35 #include <core/producer/frame_producer.h>
  36 #include <core/producer/media_info/media_info.h>
  37 #include <core/producer/media_info/media_info_repository.h>
  38 #include <core/system_info_provider.h>
  39
  40 #include <boost/property_tree/ptree.hpp>
  41 #include <boost/thread/tss.hpp>
  42 #include <boost/bind.hpp>
  43
  44 #include <tbb/recursive_mutex.h>
  45
  46 #if defined(_MSC_VER)
  47 #pragma warning (disable : 4244)
  48 #pragma warning (disable : 4603)
  49 #pragma warning (disable : 4996)
  50 #endif
  51
  52 extern "C"
  53 {
  54         #define __STDC_CONSTANT_MACROS
  55         #define __STDC_LIMIT_MACROS
  56         #include <libavformat/avformat.h>
  57         #include <libswscale/swscale.h>
  58         #include <libavutil/avutil.h>
  59         #include <libavfilter/avfilter.h>
  60         #include <libavdevice/avdevice.h>
  61 }
  62
  63 namespace caspar { namespace ffmpeg {
  64 int ffmpeg_lock_callback(void **mutex, enum AVLockOp op)
  65 {
  66         if(!mutex)
  67                 return 0;
  68
  69         auto my_mutex = reinterpret_cast<tbb::recursive_mutex*>(*mutex);
  70
  71         switch(op)
  72         {
  73                 case AV_LOCK_CREATE:
  74                 {
  75                         *mutex = new tbb::recursive_mutex();
  76                         break;
  77                 }
  78                 case AV_LOCK_OBTAIN:
  79                 {
  80                         if(my_mutex)
  81                                 my_mutex->lock();
  82                         break;
  83                 }
  84                 case AV_LOCK_RELEASE:
  85                 {
  86                         if(my_mutex)
  87                                 my_mutex->unlock();
  88                         break;
  89                 }
  90                 case AV_LOCK_DESTROY:
  91                 {
  92                         delete my_mutex;
  93                         *mutex = nullptr;
  94                         break;
  95                 }
  96         }
  97         return 0;
  98 }
  99
 100 static void sanitize(uint8_t *line)
 101 {
 102         while(*line)
 103         {
 104                 if(*line < 0x08 || (*line > 0x0D && *line < 0x20))
 105                         *line='?';
 106                 line++;
 107         }
 108 }
 109
 110 void log_callback(void* ptr, int level, const char* fmt, va_list vl)
 111 {
 112         static int print_prefix=1;
 113         static char prev[1024];
 114         char line[8192];
 115         AVClass* avc= ptr ? *(AVClass**)ptr : NULL;
 116         if (level > AV_LOG_DEBUG)
 117                 return;
 118         line[0]=0;
 119
 120 #undef fprintf
 121         if(print_prefix && avc)
 122         {
 123                 if (avc->parent_log_context_offset)
 124                 {
 125                         AVClass** parent= *(AVClass***)(((uint8_t*)ptr) + avc->parent_log_context_offset);
 126                         if(parent && *parent)
 127                                 std::sprintf(line, "[%s @ %p] ", (*parent)->item_name(parent), parent);
 128                 }
 129                 std::sprintf(line + strlen(line), "[%s @ %p] ", avc->item_name(ptr), ptr);
 130         }
 131
 132         std::vsprintf(line + strlen(line), fmt, vl);
 133
 134         print_prefix = strlen(line) && line[strlen(line)-1] == '\n';
 135
 136         strcpy(prev, line);
 137         sanitize((uint8_t*)line);
 138
 139         auto len = strlen(line);
 140         if(len > 0)
 141                 line[len-1] = 0;
 142
 143         try
 144         {
 145                 if (level == AV_LOG_VERBOSE)
 146                         CASPAR_LOG(debug) << L"[ffmpeg] " << line;
 147                 else if (level == AV_LOG_INFO)
 148                         CASPAR_LOG(info) << L"[ffmpeg] " << line;
 149                 else if (level == AV_LOG_WARNING)
 150                         CASPAR_LOG(warning) << L"[ffmpeg] " << line;
 151                 else if (level == AV_LOG_ERROR)
 152                         CASPAR_LOG(error) << L"[ffmpeg] " << line;
 153                 else if (level == AV_LOG_FATAL)
 154                         CASPAR_LOG(fatal) << L"[ffmpeg] " << line;
 155                 else
 156                         CASPAR_LOG(trace) << L"[ffmpeg] " << line;
 157         }
 158         catch (...)
 159         {
 160         }
 161 }
 162
 163 std::wstring make_version(unsigned int ver)
 164 {
 165         std::wstringstream str;
 166         str << ((ver >> 16) & 0xFF) << L"." << ((ver >> 8) & 0xFF) << L"." << ((ver >> 0) & 0xFF);
 167         return str.str();
 168 }
 169
 170 std::wstring avcodec_version()
 171 {
 172         return make_version(::avcodec_version());
 173 }
 174
 175 std::wstring avformat_version()
 176 {
 177         return make_version(::avformat_version());
 178 }
 179
 180 std::wstring avutil_version()
 181 {
 182         return make_version(::avutil_version());
 183 }
 184
 185 std::wstring avfilter_version()
 186 {
 187         return make_version(::avfilter_version());
 188 }
 189
 190 std::wstring swscale_version()
 191 {
 192         return make_version(::swscale_version());
 193 }
 194 bool& get_quiet_logging_for_thread()
 195 {
 196         static boost::thread_specific_ptr<bool> quiet_logging_for_thread;
 197
 198         auto local = quiet_logging_for_thread.get();
 199
 200         if (!local)
 201         {
 202                 local = new bool(false);
 203                 quiet_logging_for_thread.reset(local);
 204         }
 205
 206         return *local;
 207 }
 208
 209 void enable_quiet_logging_for_thread()
 210 {
 211         get_quiet_logging_for_thread() = true;
 212 }
 213
 214 bool is_logging_quiet_for_thread()
 215 {
 216         return get_quiet_logging_for_thread();
 217 }
 218
 219 std::shared_ptr<void> temporary_enable_quiet_logging_for_thread(bool enable)
 220 {
 221         if (!enable || is_logging_quiet_for_thread())
 222                 return std::shared_ptr<void>();
 223
 224         get_quiet_logging_for_thread() = true;
 225
 226         return std::shared_ptr<void>(nullptr, [](void*)
 227         {
 228                 get_quiet_logging_for_thread() = false; // Only works correctly if destructed in same thread as original caller.
 229         });
 230 }
 231
 232 void log_for_thread(void* ptr, int level, const char* fmt, va_list vl)
 233 {
 234         ensure_gpf_handler_installed_for_thread("ffmpeg-thread");
 235
 236         int min_level = is_logging_quiet_for_thread() ? AV_LOG_DEBUG : AV_LOG_FATAL;
 237
 238         log_callback(ptr, std::max(level, min_level), fmt, vl);
 239 }
 240
 241 void init(core::module_dependencies dependencies)
 242 {
 243         av_lockmgr_register(ffmpeg_lock_callback);
 244         av_log_set_callback(log_for_thread);
 245
 246         avfilter_register_all();
 247         //fix_yadif_filter_format_query();
 248         av_register_all();
 249         avformat_network_init();
 250         avcodec_register_all();
 251         avdevice_register_all();
 252
 253         auto info_repo = dependencies.media_info_repo;
 254
 255         dependencies.consumer_registry->register_consumer_factory(L"FFmpeg Consumer", create_ffmpeg_consumer, describe_ffmpeg_consumer);
 256         dependencies.consumer_registry->register_preconfigured_consumer_factory(L"ffmpeg", create_preconfigured_ffmpeg_consumer);
 257         dependencies.producer_registry->register_producer_factory(L"FFmpeg Producer", boost::bind(&create_producer, _1, _2, info_repo), describe_producer);
 258         dependencies.producer_registry->register_thumbnail_producer(boost::bind(&create_thumbnail_frame, _1, _2, info_repo));
 259
 260         info_repo->register_extractor(
 261                         [](const std::wstring& file, const std::wstring& extension, core::media_info& info) -> bool
 262                         {
 263                                 auto quiet_logging = temporary_enable_quiet_logging_for_thread(true);
 264                                 if (extension == L".WAV" || extension == L".MP3")
 265                                 {
 266                                         info.clip_type = L"AUDIO";
 267                                         return true;
 268                                 }
 269
 270                                 if (!is_valid_file(file, true))
 271                                         return false;
 272
 273                                 info.clip_type = L"MOVIE";
 274
 275                                 return try_get_duration(file, info.duration, info.time_base);
 276                         });
 277         dependencies.system_info_provider_repo->register_system_info_provider([](boost::property_tree::wptree& info)
 278         {
 279                 info.add(L"system.ffmpeg.avcodec", avcodec_version());
 280                 info.add(L"system.ffmpeg.avformat", avformat_version());
 281                 info.add(L"system.ffmpeg.avfilter", avfilter_version());
 282                 info.add(L"system.ffmpeg.avutil", avutil_version());
 283                 info.add(L"system.ffmpeg.swscale", swscale_version());
 284         });
 285 }
 286
 287 void uninit()
 288 {
 289         avfilter_uninit();
 290         avformat_network_deinit();
 291         av_lockmgr_register(nullptr);
 292 }
 293 }}