--- /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
projects / casparcg / commitdiff