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2.1.0: GPU refactoring.
[casparcg] / modules / ffmpeg / producer / util / util.cpp
1 /*\r
2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>\r
3 *\r
4 * This file is part of CasparCG (www.casparcg.com).\r
5 *\r
6 * CasparCG is free software: you can redistribute it and/or modify\r
7 * it under the terms of the GNU General Public License as published by\r
8 * the Free Software Foundation, either version 3 of the License, or\r
9 * (at your option) any later version.\r
10 *\r
11 * CasparCG is distributed in the hope that it will be useful,\r
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
14 * GNU General Public License for more details.\r
15 *\r
16 * You should have received a copy of the GNU General Public License\r
17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.\r
18 *\r
19 * Author: Robert Nagy, ronag89@gmail.com\r
20 */\r
21 \r
22 #include "../../stdafx.h"\r
23 \r
24 #include "util.h"\r
25 \r
26 #include "flv.h"\r
27 \r
28 #include "../tbb_avcodec.h"\r
29 #include "../../ffmpeg_error.h"\r
30 \r
31 #include <tbb/concurrent_unordered_map.h>\r
32 #include <tbb/concurrent_queue.h>\r
33 \r
34 #include <core/producer/frame/frame_transform.h>\r
35 #include <core/producer/frame/frame_factory.h>\r
36 #include <core/producer/frame_producer.h>\r
37 #include <core/mixer/write_frame.h>\r
38 \r
39 #include <common/exception/exceptions.h>\r
40 \r
41 #include <tbb/parallel_for.h>\r
42 \r
43 #include <common/assert.h>\r
44 #include <boost/filesystem.hpp>\r
45 #include <boost/lexical_cast.hpp>\r
46 \r
47 #include <asmlib.h>\r
48 \r
49 #if defined(_MSC_VER)\r
50 #pragma warning (push)\r
51 #pragma warning (disable : 4244)\r
52 #endif\r
53 extern "C" \r
54 {\r
55         #include <libswscale/swscale.h>\r
56         #include <libavcodec/avcodec.h>\r
57         #include <libavformat/avformat.h>\r
58 }\r
59 #if defined(_MSC_VER)\r
60 #pragma warning (pop)\r
61 #endif\r
62 \r
63 namespace caspar { namespace ffmpeg {\r
64                 \r
65 std::shared_ptr<core::audio_buffer> flush_audio()\r
66 {\r
67         static std::shared_ptr<core::audio_buffer> audio(new core::audio_buffer());\r
68         return audio;\r
69 }\r
70 \r
71 std::shared_ptr<core::audio_buffer> empty_audio()\r
72 {\r
73         static std::shared_ptr<core::audio_buffer> audio(new core::audio_buffer());\r
74         return audio;\r
75 }\r
76 \r
77 std::shared_ptr<AVFrame>                        flush_video()\r
78 {\r
79         static std::shared_ptr<AVFrame> video(avcodec_alloc_frame(), av_free);\r
80         return video;\r
81 }\r
82 \r
83 std::shared_ptr<AVFrame>                        empty_video()\r
84 {\r
85         static std::shared_ptr<AVFrame> video(avcodec_alloc_frame(), av_free);\r
86         return video;\r
87 }\r
88 \r
89 core::field_mode get_mode(const AVFrame& frame)\r
90 {\r
91         if(!frame.interlaced_frame)\r
92                 return core::field_mode::progressive;\r
93 \r
94         return frame.top_field_first ? core::field_mode::upper : core::field_mode::lower;\r
95 }\r
96 \r
97 core::pixel_format get_pixel_format(PixelFormat pix_fmt)\r
98 {\r
99         switch(pix_fmt)\r
100         {\r
101         case CASPAR_PIX_FMT_LUMA:       return core::pixel_format::luma;\r
102         case PIX_FMT_GRAY8:                     return core::pixel_format::gray;\r
103         case PIX_FMT_BGRA:                      return core::pixel_format::bgra;\r
104         case PIX_FMT_ARGB:                      return core::pixel_format::argb;\r
105         case PIX_FMT_RGBA:                      return core::pixel_format::rgba;\r
106         case PIX_FMT_ABGR:                      return core::pixel_format::abgr;\r
107         case PIX_FMT_YUV444P:           return core::pixel_format::ycbcr;\r
108         case PIX_FMT_YUV422P:           return core::pixel_format::ycbcr;\r
109         case PIX_FMT_YUV420P:           return core::pixel_format::ycbcr;\r
110         case PIX_FMT_YUV411P:           return core::pixel_format::ycbcr;\r
111         case PIX_FMT_YUV410P:           return core::pixel_format::ycbcr;\r
112         case PIX_FMT_YUVA420P:          return core::pixel_format::ycbcra;\r
113         default:                                        return core::pixel_format::invalid;\r
114         }\r
115 }\r
116 \r
117 core::pixel_format_desc get_pixel_format_desc(PixelFormat pix_fmt, int width, int height)\r
118 {\r
119         // Get linesizes\r
120         AVPicture dummy_pict;   \r
121         avpicture_fill(&dummy_pict, nullptr, pix_fmt == CASPAR_PIX_FMT_LUMA ? PIX_FMT_GRAY8 : pix_fmt, width, height);\r
122 \r
123         core::pixel_format_desc desc;\r
124         desc.pix_fmt = get_pixel_format(pix_fmt);\r
125                 \r
126         switch(desc.pix_fmt.value())\r
127         {\r
128         case core::pixel_format::gray:\r
129         case core::pixel_format::luma:\r
130                 {\r
131                         desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[0], height, 1));                                               \r
132                         return desc;\r
133                 }\r
134         case core::pixel_format::bgra:\r
135         case core::pixel_format::argb:\r
136         case core::pixel_format::rgba:\r
137         case core::pixel_format::abgr:\r
138                 {\r
139                         desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[0]/4, height, 4));                                             \r
140                         return desc;\r
141                 }\r
142         case core::pixel_format::ycbcr:\r
143         case core::pixel_format::ycbcra:\r
144                 {               \r
145                         // Find chroma height\r
146                         int size2 = static_cast<int>(dummy_pict.data[2] - dummy_pict.data[1]);\r
147                         int h2 = size2/dummy_pict.linesize[1];                  \r
148 \r
149                         desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[0], height, 1));\r
150                         desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[1], h2, 1));\r
151                         desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[2], h2, 1));\r
152 \r
153                         if(desc.pix_fmt == core::pixel_format::ycbcra)                                          \r
154                                 desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[3], height, 1));       \r
155                         return desc;\r
156                 }               \r
157         default:                \r
158                 desc.pix_fmt = core::pixel_format::invalid;\r
159                 return desc;\r
160         }\r
161 }\r
162 \r
163 int make_alpha_format(int format)\r
164 {\r
165         switch(get_pixel_format(static_cast<PixelFormat>(format)).value())\r
166         {\r
167         case core::pixel_format::ycbcr:\r
168         case core::pixel_format::ycbcra:\r
169                 return CASPAR_PIX_FMT_LUMA;\r
170         default:\r
171                 return format;\r
172         }\r
173 }\r
174 \r
175 safe_ptr<core::write_frame> make_write_frame(const void* tag, const safe_ptr<AVFrame>& decoded_frame, const safe_ptr<core::frame_factory>& frame_factory, int flags)\r
176 {                       \r
177         static tbb::concurrent_unordered_map<int, tbb::concurrent_queue<std::shared_ptr<SwsContext>>> sws_contexts_;\r
178         \r
179         if(decoded_frame->width < 1 || decoded_frame->height < 1)\r
180                 return make_safe<core::write_frame>(tag);\r
181 \r
182         const auto width  = decoded_frame->width;\r
183         const auto height = decoded_frame->height;\r
184         auto desc                 = get_pixel_format_desc(static_cast<PixelFormat>(decoded_frame->format), width, height);\r
185         \r
186         if(flags & core::frame_producer::flags::alpha_only)\r
187                 desc = get_pixel_format_desc(static_cast<PixelFormat>(make_alpha_format(decoded_frame->format)), width, height);\r
188 \r
189         std::shared_ptr<core::write_frame> write;\r
190 \r
191         if(desc.pix_fmt == core::pixel_format::invalid)\r
192         {\r
193                 auto pix_fmt = static_cast<PixelFormat>(decoded_frame->format);\r
194                 auto target_pix_fmt = PIX_FMT_BGRA;\r
195 \r
196                 if(pix_fmt == PIX_FMT_UYVY422)\r
197                         target_pix_fmt = PIX_FMT_YUV422P;\r
198                 else if(pix_fmt == PIX_FMT_YUYV422)\r
199                         target_pix_fmt = PIX_FMT_YUV422P;\r
200                 else if(pix_fmt == PIX_FMT_UYYVYY411)\r
201                         target_pix_fmt = PIX_FMT_YUV411P;\r
202                 else if(pix_fmt == PIX_FMT_YUV420P10)\r
203                         target_pix_fmt = PIX_FMT_YUV420P;\r
204                 else if(pix_fmt == PIX_FMT_YUV422P10)\r
205                         target_pix_fmt = PIX_FMT_YUV422P;\r
206                 else if(pix_fmt == PIX_FMT_YUV444P10)\r
207                         target_pix_fmt = PIX_FMT_YUV444P;\r
208                 \r
209                 auto target_desc = get_pixel_format_desc(target_pix_fmt, width, height);\r
210 \r
211                 write = frame_factory->create_frame(tag, target_desc, get_mode(*decoded_frame));\r
212 \r
213                 std::shared_ptr<SwsContext> sws_context;\r
214 \r
215                 //CASPAR_LOG(warning) << "Hardware accelerated color transform not supported.";\r
216 \r
217                 int key = ((width << 22) & 0xFFC00000) | ((height << 6) & 0x003FC000) | ((pix_fmt << 7) & 0x00007F00) | ((target_pix_fmt << 0) & 0x0000007F);\r
218                         \r
219                 auto& pool = sws_contexts_[key];\r
220                                                 \r
221                 if(!pool.try_pop(sws_context))\r
222                 {\r
223                         double param;\r
224                         sws_context.reset(sws_getContext(width, height, pix_fmt, width, height, target_pix_fmt, SWS_BILINEAR, nullptr, nullptr, &param), sws_freeContext);\r
225                 }\r
226                         \r
227                 if(!sws_context)\r
228                 {\r
229                         BOOST_THROW_EXCEPTION(operation_failed() << msg_info("Could not create software scaling context.") << \r
230                                                                         boost::errinfo_api_function("sws_getContext"));\r
231                 }       \r
232                 \r
233                 safe_ptr<AVFrame> av_frame(avcodec_alloc_frame(), av_free);     \r
234                 avcodec_get_frame_defaults(av_frame.get());                     \r
235                 if(target_pix_fmt == PIX_FMT_BGRA)\r
236                 {\r
237                         auto size = avpicture_fill(reinterpret_cast<AVPicture*>(av_frame.get()), write->image_data().begin(), PIX_FMT_BGRA, width, height);\r
238                         CASPAR_VERIFY(size == write->image_data().size()); \r
239                 }\r
240                 else\r
241                 {\r
242                         av_frame->width  = width;\r
243                         av_frame->height = height;\r
244                         for(int n = 0; n < target_desc.planes.size(); ++n)\r
245                         {\r
246                                 av_frame->data[n]               = write->image_data(n).begin();\r
247                                 av_frame->linesize[n]   = target_desc.planes[n].linesize;\r
248                         }\r
249                 }\r
250 \r
251                 sws_scale(sws_context.get(), decoded_frame->data, decoded_frame->linesize, 0, height, av_frame->data, av_frame->linesize);      \r
252                 pool.push(sws_context);\r
253 \r
254                 write->commit();                \r
255         }\r
256         else\r
257         {\r
258                 write = frame_factory->create_frame(tag, desc, get_mode(*decoded_frame));\r
259 \r
260                 for(int n = 0; n < static_cast<int>(desc.planes.size()); ++n)\r
261                 {\r
262                         auto plane            = desc.planes[n];\r
263                         auto result           = write->image_data(n).begin();\r
264                         auto decoded          = decoded_frame->data[n];\r
265                         auto decoded_linesize = decoded_frame->linesize[n];\r
266                         \r
267                         CASPAR_ASSERT(decoded);\r
268                         CASPAR_ASSERT(write->image_data(n).begin());\r
269 \r
270                         // Copy line by line since ffmpeg sometimes pads each line.\r
271                         tbb::affinity_partitioner ap;\r
272                         tbb::parallel_for(tbb::blocked_range<int>(0, desc.planes[n].height), [&](const tbb::blocked_range<int>& r)\r
273                         {\r
274                                 for(int y = r.begin(); y != r.end(); ++y)\r
275                                         A_memcpy(result + y*plane.linesize, decoded + y*decoded_linesize, plane.linesize);\r
276                         }, ap);\r
277 \r
278                         write->commit(n);\r
279                 }\r
280         }\r
281 \r
282         if(decoded_frame->height == 480) // NTSC DV\r
283         {\r
284                 write->get_frame_transform().fill_translation[1] += 2.0/static_cast<double>(frame_factory->get_video_format_desc().height);\r
285                 write->get_frame_transform().fill_scale[1] = 1.0 - 6.0*1.0/static_cast<double>(frame_factory->get_video_format_desc().height);\r
286         }\r
287         \r
288         // Fix field-order if needed\r
289         if(write->get_type() == core::field_mode::lower && frame_factory->get_video_format_desc().field_mode == core::field_mode::upper)\r
290                 write->get_frame_transform().fill_translation[1] += 1.0/static_cast<double>(frame_factory->get_video_format_desc().height);\r
291         else if(write->get_type() == core::field_mode::upper && frame_factory->get_video_format_desc().field_mode == core::field_mode::lower)\r
292                 write->get_frame_transform().fill_translation[1] -= 1.0/static_cast<double>(frame_factory->get_video_format_desc().height);\r
293 \r
294         return make_safe_ptr(write);\r
295 }\r
296 \r
297 bool is_sane_fps(AVRational time_base)\r
298 {\r
299         double fps = static_cast<double>(time_base.den) / static_cast<double>(time_base.num);\r
300         return fps > 20.0 && fps < 65.0;\r
301 }\r
302 \r
303 AVRational fix_time_base(AVRational time_base)\r
304 {\r
305         if(time_base.num == 1)\r
306                 time_base.num = static_cast<int>(std::pow(10.0, static_cast<int>(std::log10(static_cast<float>(time_base.den)))-1));    \r
307                         \r
308         if(!is_sane_fps(time_base))\r
309         {\r
310                 auto tmp = time_base;\r
311                 tmp.den /= 2;\r
312                 if(is_sane_fps(tmp))\r
313                         time_base = tmp;\r
314         }\r
315 \r
316         return time_base;\r
317 }\r
318 \r
319 double read_fps(AVFormatContext& context, double fail_value)\r
320 {                                               \r
321         auto video_index = av_find_best_stream(&context, AVMEDIA_TYPE_VIDEO, -1, -1, 0, 0);\r
322         auto audio_index = av_find_best_stream(&context, AVMEDIA_TYPE_AUDIO, -1, -1, 0, 0);\r
323         \r
324         if(video_index > -1)\r
325         {\r
326                 const auto video_context = context.streams[video_index]->codec;\r
327                 const auto video_stream  = context.streams[video_index];\r
328                                                 \r
329                 AVRational time_base = video_context->time_base;\r
330 \r
331                 if(boost::filesystem::path(context.filename).extension().string() == ".flv")\r
332                 {\r
333                         try\r
334                         {\r
335                                 auto meta = read_flv_meta_info(context.filename);\r
336                                 return boost::lexical_cast<double>(meta["framerate"]);\r
337                         }\r
338                         catch(...)\r
339                         {\r
340                                 return 0.0;\r
341                         }\r
342                 }\r
343                 else\r
344                 {\r
345                         time_base.num *= video_context->ticks_per_frame;\r
346 \r
347                         if(!is_sane_fps(time_base))\r
348                         {                       \r
349                                 time_base = fix_time_base(time_base);\r
350 \r
351                                 if(!is_sane_fps(time_base) && audio_index > -1)\r
352                                 {\r
353                                         auto& audio_context = *context.streams[audio_index]->codec;\r
354                                         auto& audio_stream  = *context.streams[audio_index];\r
355 \r
356                                         double duration_sec = audio_stream.duration / static_cast<double>(audio_context.sample_rate);\r
357                                                                 \r
358                                         time_base.num = static_cast<int>(duration_sec*100000.0);\r
359                                         time_base.den = static_cast<int>(video_stream->nb_frames*100000);\r
360                                 }\r
361                         }\r
362                 }\r
363                 \r
364                 double fps = static_cast<double>(time_base.den) / static_cast<double>(time_base.num);\r
365 \r
366                 double closest_fps = 0.0;\r
367                 for(int n = 0; n < core::video_format::count; ++n)\r
368                 {\r
369                         auto format = core::video_format_desc(core::video_format(n));\r
370 \r
371                         double diff1 = std::abs(format.fps - fps);\r
372                         double diff2 = std::abs(closest_fps - fps);\r
373 \r
374                         if(diff1 < diff2)\r
375                                 closest_fps = format.fps;\r
376                 }\r
377         \r
378                 return closest_fps;\r
379         }\r
380 \r
381         return fail_value;      \r
382 }\r
383 \r
384 void fix_meta_data(AVFormatContext& context)\r
385 {\r
386         auto video_index = av_find_best_stream(&context, AVMEDIA_TYPE_VIDEO, -1, -1, 0, 0);\r
387 \r
388         if(video_index > -1)\r
389         {\r
390                 auto video_stream   = context.streams[video_index];\r
391                 auto video_context  = context.streams[video_index]->codec;\r
392                                                 \r
393                 if(boost::filesystem::path(context.filename).extension().string() == ".flv")\r
394                 {\r
395                         try\r
396                         {\r
397                                 auto meta = read_flv_meta_info(context.filename);\r
398                                 double fps = boost::lexical_cast<double>(meta["framerate"]);\r
399                                 video_stream->nb_frames = static_cast<int64_t>(boost::lexical_cast<double>(meta["duration"])*fps);\r
400                         }\r
401                         catch(...){}\r
402                 }\r
403                 else\r
404                 {\r
405                         auto stream_time = video_stream->time_base;\r
406                         auto duration    = video_stream->duration;\r
407                         auto codec_time  = video_context->time_base;\r
408                         auto ticks               = video_context->ticks_per_frame;\r
409 \r
410                         if(video_stream->nb_frames == 0)\r
411                                 video_stream->nb_frames = (duration*stream_time.num*codec_time.den)/(stream_time.den*codec_time.num*ticks);     \r
412                 }\r
413         }\r
414 }\r
415 \r
416 safe_ptr<AVPacket> create_packet()\r
417 {\r
418         safe_ptr<AVPacket> packet(new AVPacket, [](AVPacket* p)\r
419         {\r
420                 av_free_packet(p);\r
421                 delete p;\r
422         });\r
423         \r
424         av_init_packet(packet.get());\r
425         return packet;\r
426 }\r
427 \r
428 safe_ptr<AVCodecContext> open_codec(AVFormatContext& context, enum AVMediaType type, int& index)\r
429 {       \r
430         AVCodec* decoder;\r
431         index = THROW_ON_ERROR2(av_find_best_stream(&context, type, -1, -1, &decoder, 0), "");\r
432         //if(strcmp(decoder->name, "prores") == 0 && decoder->next && strcmp(decoder->next->name, "prores_lgpl") == 0)\r
433         //      decoder = decoder->next;\r
434 \r
435         THROW_ON_ERROR2(tbb_avcodec_open(context.streams[index]->codec, decoder), "");\r
436         return safe_ptr<AVCodecContext>(context.streams[index]->codec, tbb_avcodec_close);\r
437 }\r
438 \r
439 safe_ptr<AVFormatContext> open_input(const std::wstring& filename)\r
440 {\r
441         AVFormatContext* weak_context = nullptr;\r
442         THROW_ON_ERROR2(avformat_open_input(&weak_context, u8(filename).c_str(), nullptr, nullptr), filename);\r
443         safe_ptr<AVFormatContext> context(weak_context, av_close_input_file);                   \r
444         THROW_ON_ERROR2(avformat_find_stream_info(weak_context, nullptr), filename);\r
445         fix_meta_data(*context);\r
446         return context;\r
447 }\r
448 \r
449 std::wstring print_mode(int width, int height, double fps, bool interlaced)\r
450 {\r
451         std::wostringstream fps_ss;\r
452         fps_ss << std::fixed << std::setprecision(2) << (!interlaced ? fps : 2.0 * fps);\r
453 \r
454         return boost::lexical_cast<std::wstring>(width) + L"x" + boost::lexical_cast<std::wstring>(height) + (!interlaced ? L"p" : L"i") + fps_ss.str();\r
455 }\r
456 \r
457 bool is_valid_file(const std::wstring filename)\r
458 {                       \r
459         if(boost::filesystem::path(filename).extension() == ".m2t")\r
460                 return true;\r
461 \r
462         std::ifstream file(filename);\r
463 \r
464         std::vector<unsigned char> buf;\r
465         for(auto file_it = std::istreambuf_iterator<char>(file); file_it != std::istreambuf_iterator<char>() && buf.size() < 2048; ++file_it)\r
466                 buf.push_back(*file_it);\r
467 \r
468         if(buf.empty())\r
469                 return nullptr;\r
470 \r
471         AVProbeData pb;\r
472         pb.filename = u8(filename).c_str();\r
473         pb.buf          = buf.data();\r
474         pb.buf_size = static_cast<int>(buf.size());\r
475 \r
476         int score = 0;\r
477         return av_probe_input_format2(&pb, true, &score) != nullptr;\r
478 }\r
479 \r
480 std::wstring probe_stem(const std::wstring stem)\r
481 {\r
482         auto stem2 = boost::filesystem::path(stem);\r
483         auto dir = stem2.parent_path();\r
484         for(auto it = boost::filesystem::directory_iterator(dir); it != boost::filesystem::directory_iterator(); ++it)\r
485         {\r
486                 if(boost::iequals(it->path().stem().wstring(), stem2.filename().wstring()) && is_valid_file(it->path().wstring()))\r
487                         return it->path().wstring();\r
488         }\r
489         return L"";\r
490 }\r
491 //\r
492 //void av_dup_frame(AVFrame* frame)\r
493 //{\r
494 //      AVFrame* new_frame = avcodec_alloc_frame();\r
495 //\r
496 //\r
497 //      const uint8_t *src_data[4] = {0};\r
498 //      memcpy(const_cast<uint8_t**>(&src_data[0]), frame->data, 4);\r
499 //      const int src_linesizes[4] = {0};\r
500 //      memcpy(const_cast<int*>(&src_linesizes[0]), frame->linesize, 4);\r
501 //\r
502 //      av_image_alloc(new_frame->data, new_frame->linesize, new_frame->width, new_frame->height, frame->format, 16);\r
503 //\r
504 //      av_image_copy(new_frame->data, new_frame->linesize, src_data, src_linesizes, frame->format, new_frame->width, new_frame->height);\r
505 //\r
506 //      frame =\r
507 //}\r
508 \r
509 }}