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         char line[1024];
 114         AVClass* avc= ptr ? *(AVClass**)ptr : NULL;
 115         if (level > AV_LOG_DEBUG)
 116                 return;
 117         line[0]=0;
 118
 119 #undef fprintf
 120         if(print_prefix && avc)
 121         {
 122                 if (avc->parent_log_context_offset)
 123                 {
 124                         AVClass** parent= *(AVClass***)(((uint8_t*)ptr) + avc->parent_log_context_offset);
 125                         if(parent && *parent)
 126                                 std::snprintf(line, sizeof(line), "[%s @ %p] ", (*parent)->item_name(parent), parent);
 127                 }
 128                 std::snprintf(line + strlen(line), sizeof(line) - strlen(line), "[%s @ %p] ", avc->item_name(ptr), ptr);
 129         }
 130
 131         std::vsnprintf(line + strlen(line), sizeof(line) - strlen(line), fmt, vl);
 132
 133         print_prefix = strlen(line) && line[strlen(line)-1] == '\n';
 134
 135         sanitize((uint8_t*)line);
 136
 137         try
 138         {
 139                 if (level == AV_LOG_VERBOSE)
 140                         CASPAR_LOG(debug) << L"[ffmpeg] " << line;
 141                 else if (level == AV_LOG_INFO)
 142                         CASPAR_LOG(info) << L"[ffmpeg] " << line;
 143                 else if (level == AV_LOG_WARNING)
 144                         CASPAR_LOG(warning) << L"[ffmpeg] " << line;
 145                 else if (level == AV_LOG_ERROR)
 146                         CASPAR_LOG(error) << L"[ffmpeg] " << line;
 147                 else if (level == AV_LOG_FATAL)
 148                         CASPAR_LOG(fatal) << L"[ffmpeg] " << line;
 149                 else
 150                         CASPAR_LOG(trace) << L"[ffmpeg] " << line;
 151         }
 152         catch (...)
 153         {
 154         }
 155 }
 156
 157 std::wstring make_version(unsigned int ver)
 158 {
 159         std::wstringstream str;
 160         str << ((ver >> 16) & 0xFF) << L"." << ((ver >> 8) & 0xFF) << L"." << ((ver >> 0) & 0xFF);
 161         return str.str();
 162 }
 163
 164 std::wstring avcodec_version()
 165 {
 166         return make_version(::avcodec_version());
 167 }
 168
 169 std::wstring avformat_version()
 170 {
 171         return make_version(::avformat_version());
 172 }
 173
 174 std::wstring avutil_version()
 175 {
 176         return make_version(::avutil_version());
 177 }
 178
 179 std::wstring avfilter_version()
 180 {
 181         return make_version(::avfilter_version());
 182 }
 183
 184 std::wstring swscale_version()
 185 {
 186         return make_version(::swscale_version());
 187 }
 188 bool& get_quiet_logging_for_thread()
 189 {
 190         static boost::thread_specific_ptr<bool> quiet_logging_for_thread;
 191
 192         auto local = quiet_logging_for_thread.get();
 193
 194         if (!local)
 195         {
 196                 local = new bool(false);
 197                 quiet_logging_for_thread.reset(local);
 198         }
 199
 200         return *local;
 201 }
 202
 203 void enable_quiet_logging_for_thread()
 204 {
 205         get_quiet_logging_for_thread() = true;
 206 }
 207
 208 bool is_logging_quiet_for_thread()
 209 {
 210         return get_quiet_logging_for_thread();
 211 }
 212
 213 std::shared_ptr<void> temporary_enable_quiet_logging_for_thread(bool enable)
 214 {
 215         if (!enable || is_logging_quiet_for_thread())
 216                 return std::shared_ptr<void>();
 217
 218         get_quiet_logging_for_thread() = true;
 219
 220         return std::shared_ptr<void>(nullptr, [](void*)
 221         {
 222                 get_quiet_logging_for_thread() = false; // Only works correctly if destructed in same thread as original caller.
 223         });
 224 }
 225
 226 void log_for_thread(void* ptr, int level, const char* fmt, va_list vl)
 227 {
 228         ensure_gpf_handler_installed_for_thread("ffmpeg-thread");
 229
 230         int min_level = is_logging_quiet_for_thread() ? AV_LOG_DEBUG : AV_LOG_FATAL;
 231
 232         log_callback(ptr, std::max(level, min_level), fmt, vl);
 233 }
 234
 235 void init(core::module_dependencies dependencies)
 236 {
 237         av_lockmgr_register(ffmpeg_lock_callback);
 238         av_log_set_callback(log_for_thread);
 239
 240         avfilter_register_all();
 241         //fix_yadif_filter_format_query();
 242         av_register_all();
 243         avformat_network_init();
 244         avcodec_register_all();
 245         avdevice_register_all();
 246
 247         auto info_repo = dependencies.media_info_repo;
 248
 249         dependencies.consumer_registry->register_consumer_factory(L"FFmpeg Consumer", create_ffmpeg_consumer, describe_ffmpeg_consumer);
 250         dependencies.consumer_registry->register_preconfigured_consumer_factory(L"ffmpeg", create_preconfigured_ffmpeg_consumer);
 251         dependencies.producer_registry->register_producer_factory(L"FFmpeg Producer", boost::bind(&create_producer, _1, _2, info_repo), describe_producer);
 252         dependencies.producer_registry->register_thumbnail_producer(boost::bind(&create_thumbnail_frame, _1, _2, info_repo));
 253
 254         info_repo->register_extractor(
 255                         [](const std::wstring& file, const std::wstring& extension, core::media_info& info) -> bool
 256                         {
 257                                 auto quiet_logging = temporary_enable_quiet_logging_for_thread(true);
 258                                 if (extension == L".WAV" || extension == L".MP3")
 259                                 {
 260                                         info.clip_type = L"AUDIO";
 261                                         return true;
 262                                 }
 263
 264                                 if (!is_valid_file(file, true))
 265                                         return false;
 266
 267                                 info.clip_type = L"MOVIE";
 268
 269                                 return try_get_duration(file, info.duration, info.time_base);
 270                         });
 271         dependencies.system_info_provider_repo->register_system_info_provider([](boost::property_tree::wptree& info)
 272         {
 273                 info.add(L"system.ffmpeg.avcodec", avcodec_version());
 274                 info.add(L"system.ffmpeg.avformat", avformat_version());
 275                 info.add(L"system.ffmpeg.avfilter", avfilter_version());
 276                 info.add(L"system.ffmpeg.avutil", avutil_version());
 277                 info.add(L"system.ffmpeg.swscale", swscale_version());
 278         });
 279 }
 280
 281 void uninit()
 282 {
 283         avfilter_uninit();
 284         avformat_network_deinit();
 285         av_lockmgr_register(nullptr);
 286 }
 287 }}