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\ No newline at end of file
+++ /dev/null
-#include "../../stdafx.h"\r
-\r
-#include "util.h"\r
-\r
-#include "../ffmpeg_error.h"\r
-#include "format/flv.h"\r
-\r
-#include <concurrent_unordered_map.h>\r
-#include <concurrent_queue.h>\r
-\r
-#include <core/producer/frame/frame_transform.h>\r
-#include <core/producer/frame/frame_factory.h>\r
-#include <core/producer/frame_producer.h>\r
-#include <core/mixer/write_frame.h>\r
-\r
-#include <common/exception/exceptions.h>\r
-#include <common/utility/assert.h>\r
-#include <common/memory/memcpy.h>\r
-\r
-#include <ppl.h>\r
-\r
-#include <boost/filesystem.hpp>\r
-#include <boost/lexical_cast.hpp>\r
-\r
-#if defined(_MSC_VER)\r
-#pragma warning (push)\r
-#pragma warning (disable : 4244)\r
-#endif\r
-extern "C" \r
-{\r
- #include <libswscale/swscale.h>\r
- #include <libavcodec/avcodec.h>\r
- #include <libavformat/avformat.h>\r
-}\r
-#if defined(_MSC_VER)\r
-#pragma warning (pop)\r
-#endif\r
-\r
-namespace caspar { namespace ffmpeg {\r
-\r
-core::field_mode::type get_mode(AVFrame& frame)\r
-{\r
- if(!frame.interlaced_frame)\r
- return core::field_mode::progressive;\r
-\r
- return frame.top_field_first ? core::field_mode::upper : core::field_mode::lower;\r
-}\r
-\r
-core::pixel_format::type get_pixel_format(PixelFormat pix_fmt)\r
-{\r
- switch(pix_fmt)\r
- {\r
- case CASPAR_PIX_FMT_LUMA: return core::pixel_format::luma;\r
- case PIX_FMT_GRAY8: return core::pixel_format::gray;\r
- case PIX_FMT_BGRA: return core::pixel_format::bgra;\r
- case PIX_FMT_ARGB: return core::pixel_format::argb;\r
- case PIX_FMT_RGBA: return core::pixel_format::rgba;\r
- case PIX_FMT_ABGR: return core::pixel_format::abgr;\r
- case PIX_FMT_YUV444P: return core::pixel_format::ycbcr;\r
- case PIX_FMT_YUV422P: return core::pixel_format::ycbcr;\r
- case PIX_FMT_YUV420P: return core::pixel_format::ycbcr;\r
- case PIX_FMT_YUV411P: return core::pixel_format::ycbcr;\r
- case PIX_FMT_YUV410P: return core::pixel_format::ycbcr;\r
- case PIX_FMT_YUVA420P: return core::pixel_format::ycbcra;\r
- default: return core::pixel_format::invalid;\r
- }\r
-}\r
-\r
-core::pixel_format_desc get_pixel_format_desc(PixelFormat pix_fmt, size_t width, size_t height)\r
-{\r
- // Get linesizes\r
- AVPicture dummy_pict; \r
- avpicture_fill(&dummy_pict, nullptr, pix_fmt == CASPAR_PIX_FMT_LUMA ? PIX_FMT_GRAY8 : pix_fmt, width, height);\r
-\r
- core::pixel_format_desc desc;\r
- desc.pix_fmt = get_pixel_format(pix_fmt);\r
- \r
- switch(desc.pix_fmt)\r
- {\r
- case core::pixel_format::gray:\r
- case core::pixel_format::luma:\r
- {\r
- desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[0], height, 1)); \r
- return desc;\r
- }\r
- case core::pixel_format::bgra:\r
- case core::pixel_format::argb:\r
- case core::pixel_format::rgba:\r
- case core::pixel_format::abgr:\r
- {\r
- desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[0]/4, height, 4)); \r
- return desc;\r
- }\r
- case core::pixel_format::ycbcr:\r
- case core::pixel_format::ycbcra:\r
- { \r
- // Find chroma height\r
- size_t size2 = dummy_pict.data[2] - dummy_pict.data[1];\r
- size_t h2 = size2/dummy_pict.linesize[1]; \r
-\r
- desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[0], height, 1));\r
- desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[1], h2, 1));\r
- desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[2], h2, 1));\r
-\r
- if(desc.pix_fmt == core::pixel_format::ycbcra) \r
- desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[3], height, 1)); \r
- return desc;\r
- } \r
- default: \r
- desc.pix_fmt = core::pixel_format::invalid;\r
- return desc;\r
- }\r
-}\r
-\r
-int make_alpha_format(int format)\r
-{\r
- switch(get_pixel_format(static_cast<PixelFormat>(format)))\r
- {\r
- case core::pixel_format::luma:\r
- case core::pixel_format::gray:\r
- case core::pixel_format::invalid:\r
- return format;\r
- case core::pixel_format::ycbcr:\r
- case core::pixel_format::ycbcra:\r
- return CASPAR_PIX_FMT_LUMA;\r
- default:\r
- return PIX_FMT_GRAY8;\r
- }\r
-}\r
-\r
-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 hints)\r
-{ \r
- static Concurrency::concurrent_unordered_map<size_t, Concurrency::concurrent_queue<std::shared_ptr<SwsContext>>> sws_contexts_;\r
- \r
- if(decoded_frame->width < 1 || decoded_frame->height < 1)\r
- return make_safe<core::write_frame>(tag);\r
-\r
- const auto width = decoded_frame->width;\r
- const auto height = decoded_frame->height;\r
- auto desc = get_pixel_format_desc(static_cast<PixelFormat>(decoded_frame->format), width, height);\r
- \r
- if(hints & core::frame_producer::ALPHA_HINT)\r
- desc = get_pixel_format_desc(static_cast<PixelFormat>(make_alpha_format(decoded_frame->format)), width, height);\r
-\r
- std::shared_ptr<core::write_frame> write;\r
-\r
- if(desc.pix_fmt == core::pixel_format::invalid)\r
- {\r
- auto pix_fmt = static_cast<PixelFormat>(decoded_frame->format);\r
-\r
- write = frame_factory->create_frame(tag, get_pixel_format_desc(PIX_FMT_BGRA, width, height));\r
- write->set_type(get_mode(*decoded_frame));\r
-\r
- std::shared_ptr<SwsContext> sws_context;\r
-\r
- //CASPAR_LOG(warning) << "Hardware accelerated color transform not supported.";\r
-\r
- size_t key = width << 20 | height << 8 | pix_fmt;\r
- \r
- auto& pool = sws_contexts_[key];\r
- \r
- if(!pool.try_pop(sws_context))\r
- {\r
- double param;\r
- sws_context.reset(sws_getContext(width, height, pix_fmt, width, height, PIX_FMT_BGRA, SWS_BILINEAR, nullptr, nullptr, ¶m), sws_freeContext);\r
- }\r
- \r
- if(!sws_context)\r
- {\r
- BOOST_THROW_EXCEPTION(operation_failed() << msg_info("Could not create software scaling context.") << \r
- boost::errinfo_api_function("sws_getContext"));\r
- } \r
-\r
- // Use sws_scale when provided colorspace has no hw-accel.\r
- safe_ptr<AVFrame> av_frame(avcodec_alloc_frame(), av_free); \r
- avcodec_get_frame_defaults(av_frame.get()); \r
- avpicture_fill(reinterpret_cast<AVPicture*>(av_frame.get()), write->image_data().begin(), PIX_FMT_BGRA, width, height);\r
- \r
- sws_scale(sws_context.get(), decoded_frame->data, decoded_frame->linesize, 0, height, av_frame->data, av_frame->linesize); \r
- pool.push(sws_context);\r
-\r
- write->commit();\r
- }\r
- else\r
- {\r
- write = frame_factory->create_frame(tag, desc);\r
- write->set_type(get_mode(*decoded_frame));\r
-\r
- for(int n = 0; n < static_cast<int>(desc.planes.size()); ++n)\r
- {\r
- auto plane = desc.planes[n];\r
- auto result = write->image_data(n).begin();\r
- auto decoded = decoded_frame->data[n];\r
- auto decoded_linesize = decoded_frame->linesize[n];\r
- \r
- CASPAR_ASSERT(decoded);\r
- CASPAR_ASSERT(write->image_data(n).begin());\r
-\r
- if(decoded_linesize != static_cast<int>(plane.width))\r
- {\r
- // Copy line by line since ffmpeg sometimes pads each line.\r
- Concurrency::parallel_for<size_t>(0, desc.planes[n].height, [&](size_t y)\r
- {\r
- fast_memcpy(result + y*plane.linesize, decoded + y*decoded_linesize, plane.linesize);\r
- });\r
- }\r
- else\r
- {\r
- fast_memcpy(result, decoded, plane.size);\r
- }\r
-\r
- write->commit(n);\r
- }\r
- }\r
- \r
- // Fix field-order if needed\r
- if(write->get_type() == core::field_mode::lower && frame_factory->get_video_format_desc().field_mode == core::field_mode::upper)\r
- write->get_frame_transform().fill_translation[1] += 1.0/static_cast<double>(frame_factory->get_video_format_desc().height);\r
- else if(write->get_type() == core::field_mode::upper && frame_factory->get_video_format_desc().field_mode == core::field_mode::lower)\r
- write->get_frame_transform().fill_translation[1] -= 1.0/static_cast<double>(frame_factory->get_video_format_desc().height);\r
-\r
- return make_safe_ptr(write);\r
-}\r
-\r
-bool is_sane_fps(AVRational time_base)\r
-{\r
- double fps = static_cast<double>(time_base.den) / static_cast<double>(time_base.num);\r
- return fps > 20.0 && fps < 65.0;\r
-}\r
-\r
-void fix_meta_data(AVFormatContext& context)\r
-{\r
- auto video_index = av_find_best_stream(&context, AVMEDIA_TYPE_VIDEO, -1, -1, 0, 0);\r
- auto audio_index = av_find_best_stream(&context, AVMEDIA_TYPE_AUDIO, -1, -1, 0, 0);\r
-\r
- if(video_index < 0)\r
- return;\r
-\r
- auto& video_context = *context.streams[video_index]->codec;\r
- auto& video_stream = *context.streams[video_index];\r
- \r
- if(boost::filesystem2::path(context.filename).extension() == ".flv")\r
- {\r
- try\r
- {\r
- auto meta = read_flv_meta_info(context.filename);\r
- double fps = boost::lexical_cast<double>(meta["framerate"]);\r
- video_context.time_base.num = 1000000;\r
- video_context.time_base.den = static_cast<int>(fps*1000000.0);\r
- video_stream.nb_frames = static_cast<int64_t>(boost::lexical_cast<double>(meta["duration"])*fps);\r
- }\r
- catch(...){}\r
- }\r
- else\r
- {\r
- if(video_stream.nb_frames == 0)\r
- video_stream.nb_frames = video_stream.duration;\r
-\r
- if(!is_sane_fps(video_context.time_base))\r
- { \r
- if(video_context.time_base.num == 1)\r
- video_context.time_base.num = static_cast<int>(std::pow(10.0, static_cast<int>(std::log10(static_cast<float>(video_context.time_base.den)))-1)); \r
-\r
- if(!is_sane_fps(video_context.time_base) && audio_index > -1)\r
- {\r
- auto& audio_context = *context.streams[audio_index]->codec;\r
- auto& audio_stream = *context.streams[audio_index];\r
-\r
- double duration_sec = audio_stream.duration / static_cast<double>(audio_context.sample_rate);\r
- \r
- video_context.time_base.num = static_cast<int>(duration_sec*100000.0);\r
- video_context.time_base.den = static_cast<int>(video_stream.nb_frames*100000);\r
- }\r
- }\r
-\r
- if(audio_index > -1) // Check for invalid double frame-rate\r
- {\r
- auto& audio_context = *context.streams[audio_index]->codec;\r
- auto& audio_stream = *context.streams[audio_index];\r
-\r
- double duration_sec = audio_stream.duration / static_cast<double>(audio_context.sample_rate);\r
- double fps = static_cast<double>(video_context.time_base.den) / static_cast<double>(video_context.time_base.num);\r
-\r
- double fps_nb_frames = static_cast<double>(duration_sec*fps);\r
- double stream_nb_frames = static_cast<double>(video_stream.nb_frames);\r
- double diff = std::abs(fps_nb_frames - stream_nb_frames*2.0);\r
- if(diff < fps_nb_frames*0.05)\r
- video_context.time_base.num *= 2;\r
- }\r
- }\r
-\r
- double fps = static_cast<double>(video_context.time_base.den) / static_cast<double>(video_context.time_base.num);\r
-\r
- double closest_fps = 0.0;\r
- for(int n = 0; n < core::video_format::count; ++n)\r
- {\r
- auto format = core::video_format_desc::get(static_cast<core::video_format::type>(n));\r
-\r
- double diff1 = std::abs(format.fps - fps);\r
- double diff2 = std::abs(closest_fps - fps);\r
-\r
- if(diff1 < diff2)\r
- closest_fps = format.fps;\r
- }\r
- \r
- video_context.time_base.num = 1000000;\r
- video_context.time_base.den = static_cast<int>(closest_fps*1000000.0);\r
-}\r
-\r
-safe_ptr<AVPacket> create_packet()\r
-{\r
- safe_ptr<AVPacket> packet(new AVPacket, [](AVPacket* p)\r
- {\r
- av_free_packet(p);\r
- delete p;\r
- });\r
- \r
- av_init_packet(packet.get());\r
- return packet;\r
-}\r
-\r
-safe_ptr<AVPacket> flush_packet(int index)\r
-{\r
- static safe_ptr<AVPacket> packets[] = {create_packet(), create_packet(), create_packet(), create_packet(), create_packet(), create_packet()};\r
- \r
- auto& packet = packets[index];\r
- packet->stream_index = index;\r
-\r
- return packet;\r
-}\r
-\r
-safe_ptr<AVPacket> eof_packet(int index)\r
-{\r
- static safe_ptr<AVPacket> packets[] = {create_packet(), create_packet(), create_packet(), create_packet(), create_packet(), create_packet()};\r
- \r
- auto& packet = packets[index];\r
- packet->stream_index = index;\r
-\r
- return packet;\r
-}\r
-\r
-safe_ptr<AVFrame> flush_video()\r
-{\r
- static auto frame1 = safe_ptr<AVFrame>(avcodec_alloc_frame(), av_free);\r
- return frame1;\r
-}\r
-\r
-safe_ptr<AVFrame> eof_video()\r
-{\r
- static auto frame2 = safe_ptr<AVFrame>(avcodec_alloc_frame(), av_free);\r
- return frame2;\r
-}\r
-\r
-safe_ptr<core::audio_buffer> flush_audio()\r
-{\r
- static auto audio1 = safe_ptr<core::audio_buffer>();\r
- return audio1;\r
-}\r
-\r
-safe_ptr<core::audio_buffer> eof_audio()\r
-{\r
- static auto audio2 = safe_ptr<core::audio_buffer>();\r
- return audio2;\r
-}\r
-\r
-safe_ptr<AVCodecContext> open_codec(AVFormatContext& context, enum AVMediaType type, int& index)\r
-{ \r
- AVCodec* decoder;\r
- index = THROW_ON_ERROR2(av_find_best_stream(&context, type, -1, -1, &decoder, 0), "");\r
- THROW_ON_ERROR2(avcodec_open(context.streams[index]->codec, decoder), "");\r
- return safe_ptr<AVCodecContext>(context.streams[index]->codec, avcodec_close);\r
-}\r
-\r
-safe_ptr<AVFormatContext> open_input(const std::wstring& filename)\r
-{\r
- AVFormatContext* weak_context = nullptr;\r
- THROW_ON_ERROR2(avformat_open_input(&weak_context, narrow(filename).c_str(), nullptr, nullptr), filename);\r
- safe_ptr<AVFormatContext> context(weak_context, av_close_input_file); \r
- THROW_ON_ERROR2(avformat_find_stream_info(weak_context, nullptr), filename);\r
- fix_meta_data(*context);\r
- return context;\r
-}\r
-//\r
-//void av_dup_frame(AVFrame* frame)\r
-//{\r
-// AVFrame* new_frame = avcodec_alloc_frame();\r
-//\r
-//\r
-// const uint8_t *src_data[4] = {0};\r
-// memcpy(const_cast<uint8_t**>(&src_data[0]), frame->data, 4);\r
-// const int src_linesizes[4] = {0};\r
-// memcpy(const_cast<int*>(&src_linesizes[0]), frame->linesize, 4);\r
-//\r
-// av_image_alloc(new_frame->data, new_frame->linesize, new_frame->width, new_frame->height, frame->format, 16);\r
-//\r
-// av_image_copy(new_frame->data, new_frame->linesize, src_data, src_linesizes, frame->format, new_frame->width, new_frame->height);\r
-//\r
-// frame =\r
-//}\r
-\r
-}}
\ No newline at end of file