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 boost::thread_specific_ptr<bool> print_prefix_tss;
 113         auto print_prefix = print_prefix_tss.get();
 114
 115         if (!print_prefix)
 116         {
 117                 print_prefix = new bool(true);
 118                 print_prefix_tss.reset(print_prefix);
 119         }
 120
 121         char line[1024];
 122         AVClass* avc= ptr ? *(AVClass**)ptr : NULL;
 123         if (level > AV_LOG_DEBUG)
 124                 return;
 125         line[0]=0;
 126
 127 #undef fprintf
 128         if(*print_prefix && avc)
 129         {
 130                 if (avc->parent_log_context_offset)
 131                 {
 132                         AVClass** parent= *(AVClass***)(((uint8_t*)ptr) + avc->parent_log_context_offset);
 133                         if(parent && *parent)
 134                                 std::snprintf(line, sizeof(line), "[%s @ %p] ", (*parent)->item_name(parent), parent);
 135                 }
 136                 std::snprintf(line + strlen(line), sizeof(line) - strlen(line), "[%s @ %p] ", avc->item_name(ptr), ptr);
 137         }
 138
 139         std::vsnprintf(line + strlen(line), sizeof(line) - strlen(line), fmt, vl);
 140
 141         *print_prefix = strlen(line) && line[strlen(line)-1] == '\n';
 142
 143         sanitize((uint8_t*)line);
 144
 145         try
 146         {
 147                 if (level == AV_LOG_VERBOSE)
 148                         CASPAR_LOG(debug) << L"[ffmpeg] " << line;
 149                 else if (level == AV_LOG_INFO)
 150                         CASPAR_LOG(info) << L"[ffmpeg] " << line;
 151                 else if (level == AV_LOG_WARNING)
 152                         CASPAR_LOG(warning) << L"[ffmpeg] " << line;
 153                 else if (level == AV_LOG_ERROR)
 154                         CASPAR_LOG(error) << L"[ffmpeg] " << line;
 155                 else if (level == AV_LOG_FATAL)
 156                         CASPAR_LOG(fatal) << L"[ffmpeg] " << line;
 157                 else
 158                         CASPAR_LOG(trace) << L"[ffmpeg] " << line;
 159         }
 160         catch (...)
 161         {
 162         }
 163 }
 164
 165 std::wstring make_version(unsigned int ver)
 166 {
 167         std::wstringstream str;
 168         str << ((ver >> 16) & 0xFF) << L"." << ((ver >> 8) & 0xFF) << L"." << ((ver >> 0) & 0xFF);
 169         return str.str();
 170 }
 171
 172 std::wstring avcodec_version()
 173 {
 174         return make_version(::avcodec_version());
 175 }
 176
 177 std::wstring avformat_version()
 178 {
 179         return make_version(::avformat_version());
 180 }
 181
 182 std::wstring avutil_version()
 183 {
 184         return make_version(::avutil_version());
 185 }
 186
 187 std::wstring avfilter_version()
 188 {
 189         return make_version(::avfilter_version());
 190 }
 191
 192 std::wstring swscale_version()
 193 {
 194         return make_version(::swscale_version());
 195 }
 196 bool& get_quiet_logging_for_thread()
 197 {
 198         static boost::thread_specific_ptr<bool> quiet_logging_for_thread;
 199
 200         auto local = quiet_logging_for_thread.get();
 201
 202         if (!local)
 203         {
 204                 local = new bool(false);
 205                 quiet_logging_for_thread.reset(local);
 206         }
 207
 208         return *local;
 209 }
 210
 211 void enable_quiet_logging_for_thread()
 212 {
 213         get_quiet_logging_for_thread() = true;
 214 }
 215
 216 bool is_logging_quiet_for_thread()
 217 {
 218         return get_quiet_logging_for_thread();
 219 }
 220
 221 std::shared_ptr<void> temporary_enable_quiet_logging_for_thread(bool enable)
 222 {
 223         if (!enable || is_logging_quiet_for_thread())
 224                 return std::shared_ptr<void>();
 225
 226         get_quiet_logging_for_thread() = true;
 227
 228         return std::shared_ptr<void>(nullptr, [](void*)
 229         {
 230                 get_quiet_logging_for_thread() = false; // Only works correctly if destructed in same thread as original caller.
 231         });
 232 }
 233
 234 void log_for_thread(void* ptr, int level, const char* fmt, va_list vl)
 235 {
 236         ensure_gpf_handler_installed_for_thread("ffmpeg-thread");
 237
 238         int min_level = is_logging_quiet_for_thread() ? AV_LOG_DEBUG : AV_LOG_FATAL;
 239
 240         log_callback(ptr, std::max(level, min_level), fmt, vl);
 241 }
 242
 243 void init(core::module_dependencies dependencies)
 244 {
 245         av_lockmgr_register(ffmpeg_lock_callback);
 246         av_log_set_callback(log_for_thread);
 247
 248         avfilter_register_all();
 249         //fix_yadif_filter_format_query();
 250         av_register_all();
 251         avformat_network_init();
 252         avcodec_register_all();
 253         avdevice_register_all();
 254
 255         auto info_repo = dependencies.media_info_repo;
 256
 257         dependencies.consumer_registry->register_consumer_factory(L"FFmpeg Consumer", create_ffmpeg_consumer, describe_ffmpeg_consumer);
 258         dependencies.consumer_registry->register_preconfigured_consumer_factory(L"ffmpeg", create_preconfigured_ffmpeg_consumer);
 259         dependencies.producer_registry->register_producer_factory(L"FFmpeg Producer", boost::bind(&create_producer, _1, _2, info_repo), describe_producer);
 260         dependencies.producer_registry->register_thumbnail_producer(boost::bind(&create_thumbnail_frame, _1, _2, info_repo));
 261
 262         info_repo->register_extractor(
 263                         [](const std::wstring& file, const std::wstring& extension, core::media_info& info) -> bool
 264                         {
 265                                 auto quiet_logging = temporary_enable_quiet_logging_for_thread(true);
 266                                 if (extension == L".WAV" || extension == L".MP3")
 267                                 {
 268                                         info.clip_type = L"AUDIO";
 269                                         return true;
 270                                 }
 271
 272                                 if (!is_valid_file(file, true))
 273                                         return false;
 274
 275                                 info.clip_type = L"MOVIE";
 276
 277                                 return try_get_duration(file, info.duration, info.time_base);
 278                         });
 279         dependencies.system_info_provider_repo->register_system_info_provider([](boost::property_tree::wptree& info)
 280         {
 281                 info.add(L"system.ffmpeg.avcodec", avcodec_version());
 282                 info.add(L"system.ffmpeg.avformat", avformat_version());
 283                 info.add(L"system.ffmpeg.avfilter", avfilter_version());
 284                 info.add(L"system.ffmpeg.avutil", avutil_version());
 285                 info.add(L"system.ffmpeg.swscale", swscale_version());
 286         });
 287 }
 288
 289 void uninit()
 290 {
 291         avfilter_uninit();
 292         avformat_network_deinit();
 293         av_lockmgr_register(nullptr);
 294 }
 295 }}