-#include "../../stdafx.h"\r
-\r
-#include "util.h"\r
-\r
-#include "flv.h"\r
-\r
-#include "../tbb_avcodec.h"\r
-#include "../../ffmpeg_error.h"\r
-\r
-#include <tbb/concurrent_unordered_map.h>\r
-#include <tbb/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 <tbb/parallel_for.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
-std::shared_ptr<core::audio_buffer> flush_audio()\r
-{\r
- static std::shared_ptr<core::audio_buffer> audio(new core::audio_buffer());\r
- return audio;\r
-}\r
-\r
-std::shared_ptr<core::audio_buffer> empty_audio()\r
-{\r
- static std::shared_ptr<core::audio_buffer> audio(new core::audio_buffer());\r
- return audio;\r
-}\r
-\r
-std::shared_ptr<AVFrame> flush_video()\r
-{\r
- static std::shared_ptr<AVFrame> video(avcodec_alloc_frame(), av_free);\r
- return video;\r
-}\r
-\r
-std::shared_ptr<AVFrame> empty_video()\r
-{\r
- static std::shared_ptr<AVFrame> video(avcodec_alloc_frame(), av_free);\r
- return video;\r
-}\r
-\r
-core::field_mode::type get_mode(const 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::ycbcr:\r
- case core::pixel_format::ycbcra:\r
- return CASPAR_PIX_FMT_LUMA;\r
- default:\r
- return format;\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 tbb::concurrent_unordered_map<size_t, tbb::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
- auto size = avpicture_fill(reinterpret_cast<AVPicture*>(av_frame.get()), write->image_data().begin(), PIX_FMT_BGRA, width, height);\r
- CASPAR_VERIFY(size == write->image_data().size()); \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
- tbb::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
- if(decoded_frame->height == 480) // NTSC DV\r
- {\r
- write->get_frame_transform().fill_translation[1] += 2.0/static_cast<double>(frame_factory->get_video_format_desc().height);\r
- write->get_frame_transform().fill_scale[1] = 1.0 - 6.0*1.0/static_cast<double>(frame_factory->get_video_format_desc().height);\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
-AVRational fix_time_base(AVRational time_base)\r
-{\r
- if(time_base.num == 1)\r
- time_base.num = static_cast<int>(std::pow(10.0, static_cast<int>(std::log10(static_cast<float>(time_base.den)))-1)); \r
- \r
- if(!is_sane_fps(time_base))\r
- {\r
- auto tmp = time_base;\r
- tmp.den /= 2;\r
- if(is_sane_fps(tmp))\r
- time_base = tmp;\r
- }\r
-\r
- return time_base;\r
-}\r
-\r
-double read_fps(AVFormatContext& context, double fail_value)\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 > -1)\r
- {\r
- const auto video_context = context.streams[video_index]->codec;\r
- const auto video_stream = context.streams[video_index];\r
- \r
- AVRational time_base = video_context->time_base;\r
-\r
- if(boost::filesystem2::path(context.filename).extension() == ".flv")\r
- {\r
- try\r
- {\r
- auto meta = read_flv_meta_info(context.filename);\r
- return boost::lexical_cast<double>(meta["framerate"]);\r
- }\r
- catch(...)\r
- {\r
- return 0.0;\r
- }\r
- }\r
- else\r
- {\r
- time_base.num *= video_context->ticks_per_frame;\r
-\r
- if(!is_sane_fps(time_base))\r
- { \r
- time_base = fix_time_base(time_base);\r
-\r
- if(!is_sane_fps(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
- time_base.num = static_cast<int>(duration_sec*100000.0);\r
- time_base.den = static_cast<int>(video_stream->nb_frames*100000);\r
- }\r
- }\r
- }\r
- \r
- double fps = static_cast<double>(time_base.den) / static_cast<double>(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
- return closest_fps;\r
- }\r
-\r
- return fail_value; \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
-\r
- if(video_index > -1)\r
- {\r
- auto video_stream = context.streams[video_index];\r
- auto video_context = context.streams[video_index]->codec;\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_stream->nb_frames = static_cast<int64_t>(boost::lexical_cast<double>(meta["duration"])*fps);\r
- }\r
- catch(...){}\r
- }\r
- else\r
- {\r
- video_stream->nb_frames = (video_stream->duration*video_stream->time_base.num*video_context->time_base.den)/(video_stream->time_base.den*video_context->time_base.num*video_context->ticks_per_frame); }\r
- }\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<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
- //if(strcmp(decoder->name, "prores") == 0 && decoder->next && strcmp(decoder->next->name, "prores_lgpl") == 0)\r
- // decoder = decoder->next;\r
-\r
- THROW_ON_ERROR2(tbb_avcodec_open(context.streams[index]->codec, decoder), "");\r
- return safe_ptr<AVCodecContext>(context.streams[index]->codec, tbb_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
+/*
+* Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
+*
+* This file is part of CasparCG (www.casparcg.com).
+*
+* CasparCG is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* CasparCG is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
+*
+* Author: Robert Nagy, ronag89@gmail.com
+*/
+
+#include "../../StdAfx.h"
+
+#include "util.h"
+
+#include "flv.h"
+
+#include "../tbb_avcodec.h"
+#include "../../ffmpeg_error.h"
+#include "../../ffmpeg.h"
+
+#include <tbb/concurrent_unordered_map.h>
+#include <tbb/concurrent_queue.h>
+
+#include <core/frame/frame_transform.h>
+#include <core/frame/frame_factory.h>
+#include <core/frame/frame.h>
+#include <core/frame/audio_channel_layout.h>
+#include <core/producer/frame_producer.h>
+
+#include <common/except.h>
+#include <common/array.h>
+#include <common/os/filesystem.h>
+#include <common/memcpy.h>
+
+#include <tbb/parallel_for.h>
+
+#include <common/assert.h>
+#include <boost/filesystem.hpp>
+#include <boost/lexical_cast.hpp>
+#include <boost/rational.hpp>
+
+#include <fstream>
+
+#include <asmlib.h>
+
+#if defined(_MSC_VER)
+#pragma warning (push)
+#pragma warning (disable : 4244)
+#endif
+extern "C"
+{
+ #include <libswscale/swscale.h>
+ #include <libavcodec/avcodec.h>
+ #include <libavformat/avformat.h>
+}
+#if defined(_MSC_VER)
+#pragma warning (pop)
+#endif
+
+namespace caspar { namespace ffmpeg {
+
+core::field_mode get_mode(const AVFrame& frame)
+{
+ if(!frame.interlaced_frame)
+ return core::field_mode::progressive;
+
+ return frame.top_field_first ? core::field_mode::upper : core::field_mode::lower;
+}
+
+core::pixel_format get_pixel_format(PixelFormat pix_fmt)
+{
+ switch(pix_fmt)
+ {
+ case PIX_FMT_GRAY8: return core::pixel_format::gray;
+ case PIX_FMT_RGB24: return core::pixel_format::rgb;
+ case PIX_FMT_BGR24: return core::pixel_format::bgr;
+ case PIX_FMT_BGRA: return core::pixel_format::bgra;
+ case PIX_FMT_ARGB: return core::pixel_format::argb;
+ case PIX_FMT_RGBA: return core::pixel_format::rgba;
+ case PIX_FMT_ABGR: return core::pixel_format::abgr;
+ case PIX_FMT_YUV444P: return core::pixel_format::ycbcr;
+ case PIX_FMT_YUV422P: return core::pixel_format::ycbcr;
+ case PIX_FMT_YUV420P: return core::pixel_format::ycbcr;
+ case PIX_FMT_YUV411P: return core::pixel_format::ycbcr;
+ case PIX_FMT_YUV410P: return core::pixel_format::ycbcr;
+ case PIX_FMT_YUVA420P: return core::pixel_format::ycbcra;
+ default: return core::pixel_format::invalid;
+ }
+}
+
+core::pixel_format_desc pixel_format_desc(PixelFormat pix_fmt, int width, int height)
+{
+ // Get linesizes
+ AVPicture dummy_pict;
+ avpicture_fill(&dummy_pict, nullptr, pix_fmt, width, height);
+
+ core::pixel_format_desc desc = get_pixel_format(pix_fmt);
+
+ switch(desc.format)
+ {
+ case core::pixel_format::gray:
+ case core::pixel_format::luma:
+ {
+ desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[0], height, 1));
+ return desc;
+ }
+ case core::pixel_format::bgr:
+ case core::pixel_format::rgb:
+ {
+ desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[0]/3, height, 3));
+ return desc;
+ }
+ case core::pixel_format::bgra:
+ case core::pixel_format::argb:
+ case core::pixel_format::rgba:
+ case core::pixel_format::abgr:
+ {
+ desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[0]/4, height, 4));
+ return desc;
+ }
+ case core::pixel_format::ycbcr:
+ case core::pixel_format::ycbcra:
+ {
+ // Find chroma height
+ int size2 = static_cast<int>(dummy_pict.data[2] - dummy_pict.data[1]);
+ int h2 = size2/dummy_pict.linesize[1];
+
+ desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[0], height, 1));
+ desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[1], h2, 1));
+ desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[2], h2, 1));
+
+ if(desc.format == core::pixel_format::ycbcra)
+ desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[3], height, 1));
+ return desc;
+ }
+ default:
+ desc.format = core::pixel_format::invalid;
+ return desc;
+ }
+}
+
+core::mutable_frame make_frame(const void* tag, const spl::shared_ptr<AVFrame>& decoded_frame, core::frame_factory& frame_factory, const core::audio_channel_layout& channel_layout)
+{
+ static tbb::concurrent_unordered_map<int64_t, tbb::concurrent_queue<std::shared_ptr<SwsContext>>> sws_contvalid_exts_;
+
+ if(decoded_frame->width < 1 || decoded_frame->height < 1)
+ return frame_factory.create_frame(tag, core::pixel_format_desc(core::pixel_format::invalid), core::audio_channel_layout::invalid());
+
+ const auto width = decoded_frame->width;
+ const auto height = decoded_frame->height;
+ auto desc = pixel_format_desc(static_cast<PixelFormat>(decoded_frame->format), width, height);
+
+ if(desc.format == core::pixel_format::invalid)
+ {
+ auto pix_fmt = static_cast<PixelFormat>(decoded_frame->format);
+ auto target_pix_fmt = PIX_FMT_BGRA;
+
+ if(pix_fmt == PIX_FMT_UYVY422)
+ target_pix_fmt = PIX_FMT_YUV422P;
+ else if(pix_fmt == PIX_FMT_YUYV422)
+ target_pix_fmt = PIX_FMT_YUV422P;
+ else if(pix_fmt == PIX_FMT_UYYVYY411)
+ target_pix_fmt = PIX_FMT_YUV411P;
+ else if(pix_fmt == PIX_FMT_YUV420P10)
+ target_pix_fmt = PIX_FMT_YUV420P;
+ else if(pix_fmt == PIX_FMT_YUV422P10)
+ target_pix_fmt = PIX_FMT_YUV422P;
+ else if(pix_fmt == PIX_FMT_YUV444P10)
+ target_pix_fmt = PIX_FMT_YUV444P;
+
+ auto target_desc = pixel_format_desc(target_pix_fmt, width, height);
+
+ auto write = frame_factory.create_frame(tag, target_desc, channel_layout);
+
+ std::shared_ptr<SwsContext> sws_context;
+
+ //CASPAR_LOG(warning) << "Hardware accelerated color transform not supported.";
+
+ int64_t key = ((static_cast<int64_t>(width) << 32) & 0xFFFF00000000) |
+ ((static_cast<int64_t>(height) << 16) & 0xFFFF0000) |
+ ((static_cast<int64_t>(pix_fmt) << 8) & 0xFF00) |
+ ((static_cast<int64_t>(target_pix_fmt) << 0) & 0xFF);
+
+ auto& pool = sws_contvalid_exts_[key];
+
+ if(!pool.try_pop(sws_context))
+ {
+ double param;
+ sws_context.reset(sws_getContext(width, height, pix_fmt, width, height, target_pix_fmt, SWS_BILINEAR, nullptr, nullptr, ¶m), sws_freeContext);
+ }
+
+ if(!sws_context)
+ {
+ CASPAR_THROW_EXCEPTION(operation_failed() << msg_info("Could not create software scaling context.") <<
+ boost::errinfo_api_function("sws_getContext"));
+ }
+
+ auto av_frame = create_frame();
+ if(target_pix_fmt == PIX_FMT_BGRA)
+ {
+ auto size = avpicture_fill(reinterpret_cast<AVPicture*>(av_frame.get()), write.image_data(0).begin(), PIX_FMT_BGRA, width, height);
+ CASPAR_VERIFY(size == write.image_data(0).size());
+ }
+ else
+ {
+ av_frame->width = width;
+ av_frame->height = height;
+ for(int n = 0; n < target_desc.planes.size(); ++n)
+ {
+ av_frame->data[n] = write.image_data(n).begin();
+ av_frame->linesize[n] = target_desc.planes[n].linesize;
+ }
+ }
+
+ sws_scale(sws_context.get(), decoded_frame->data, decoded_frame->linesize, 0, height, av_frame->data, av_frame->linesize);
+ pool.push(sws_context);
+
+ return std::move(write);
+ }
+ else
+ {
+ auto write = frame_factory.create_frame(tag, desc, channel_layout);
+
+ for(int n = 0; n < static_cast<int>(desc.planes.size()); ++n)
+ {
+ auto plane = desc.planes[n];
+ auto result = write.image_data(n).begin();
+ auto decoded = decoded_frame->data[n];
+ auto decoded_linesize = decoded_frame->linesize[n];
+
+ CASPAR_ASSERT(decoded);
+ CASPAR_ASSERT(write.image_data(n).begin());
+
+ if (decoded_linesize != plane.linesize)
+ {
+ // Copy line by line since ffmpeg sometimes pads each line.
+ tbb::affinity_partitioner ap;
+ tbb::parallel_for(tbb::blocked_range<int>(0, desc.planes[n].height), [&](const tbb::blocked_range<int>& r)
+ {
+ for (int y = r.begin(); y != r.end(); ++y)
+ A_memcpy(result + y*plane.linesize, decoded + y*decoded_linesize, plane.linesize);
+ }, ap);
+ }
+ else
+ {
+ fast_memcpy(result, decoded, plane.size);
+ }
+ }
+
+ return std::move(write);
+ }
+}
+
+spl::shared_ptr<AVFrame> make_av_frame(core::mutable_frame& frame)
+{
+ std::array<uint8_t*, 4> data = {};
+ for(int n = 0; n < frame.pixel_format_desc().planes.size(); ++n)
+ data[n] = frame.image_data(n).begin();
+
+ return make_av_frame(data, frame.pixel_format_desc());
+}
+
+spl::shared_ptr<AVFrame> make_av_frame(std::array<uint8_t*, 4> data, const core::pixel_format_desc& pix_desc)
+{
+ auto av_frame = create_frame();
+
+ auto planes = pix_desc.planes;
+ auto format = pix_desc.format;
+
+ av_frame->width = planes[0].width;
+ av_frame->height = planes[0].height;
+ for(int n = 0; n < planes.size(); ++n)
+ {
+ av_frame->data[n] = data[n];
+ av_frame->linesize[n] = planes[n].linesize;
+ }
+
+ switch(format)
+ {
+ case core::pixel_format::rgb:
+ av_frame->format = PIX_FMT_RGB24;
+ break;
+ case core::pixel_format::bgr:
+ av_frame->format = PIX_FMT_BGR24;
+ break;
+ case core::pixel_format::rgba:
+ av_frame->format = PIX_FMT_RGBA;
+ break;
+ case core::pixel_format::argb:
+ av_frame->format = PIX_FMT_ARGB;
+ break;
+ case core::pixel_format::bgra:
+ av_frame->format = PIX_FMT_BGRA;
+ break;
+ case core::pixel_format::abgr:
+ av_frame->format = PIX_FMT_ABGR;
+ break;
+ case core::pixel_format::gray:
+ av_frame->format = PIX_FMT_GRAY8;
+ break;
+ case core::pixel_format::ycbcr:
+ {
+ int y_w = planes[0].width;
+ int y_h = planes[0].height;
+ int c_w = planes[1].width;
+ int c_h = planes[1].height;
+
+ if(c_h == y_h && c_w == y_w)
+ av_frame->format = PIX_FMT_YUV444P;
+ else if(c_h == y_h && c_w*2 == y_w)
+ av_frame->format = PIX_FMT_YUV422P;
+ else if(c_h == y_h && c_w*4 == y_w)
+ av_frame->format = PIX_FMT_YUV411P;
+ else if(c_h*2 == y_h && c_w*2 == y_w)
+ av_frame->format = PIX_FMT_YUV420P;
+ else if(c_h*2 == y_h && c_w*4 == y_w)
+ av_frame->format = PIX_FMT_YUV410P;
+
+ break;
+ }
+ case core::pixel_format::ycbcra:
+ av_frame->format = PIX_FMT_YUVA420P;
+ break;
+ }
+ return av_frame;
+}
+
+bool is_sane_fps(AVRational time_base)
+{
+ double fps = static_cast<double>(time_base.den) / static_cast<double>(time_base.num);
+ return fps > 20.0 && fps < 65.0;
+}
+
+AVRational fix_time_base(AVRational time_base)
+{
+ if(time_base.num == 1)
+ time_base.num = static_cast<int>(std::pow(10.0, static_cast<int>(std::log10(static_cast<float>(time_base.den)))-1));
+
+ if(!is_sane_fps(time_base))
+ {
+ auto tmp = time_base;
+ tmp.den /= 2;
+ if(is_sane_fps(tmp))
+ time_base = tmp;
+ }
+
+ return time_base;
+}
+
+double read_fps(AVFormatContext& context, double fail_value)
+{
+ auto framerate = read_framerate(context, boost::rational<int>(static_cast<int>(fail_value * 1000000.0), 1000000));
+
+ return static_cast<double>(framerate.numerator()) / static_cast<double>(framerate.denominator());
+}
+
+boost::rational<int> read_framerate(AVFormatContext& context, const boost::rational<int>& fail_value)
+{
+ auto video_index = av_find_best_stream(&context, AVMEDIA_TYPE_VIDEO, -1, -1, 0, 0);
+ auto audio_index = av_find_best_stream(&context, AVMEDIA_TYPE_AUDIO, -1, -1, 0, 0);
+
+ if (video_index > -1)
+ {
+ const auto video_context = context.streams[video_index]->codec;
+ const auto video_stream = context.streams[video_index];
+
+ auto frame_rate_time_base = video_stream->avg_frame_rate;
+ std::swap(frame_rate_time_base.num, frame_rate_time_base.den);
+
+ if (is_sane_fps(frame_rate_time_base))
+ {
+ return boost::rational<int>(frame_rate_time_base.den, frame_rate_time_base.num);
+ }
+
+ AVRational time_base = video_context->time_base;
+
+ if (boost::filesystem::path(context.filename).extension().string() == ".flv")
+ {
+ try
+ {
+ auto meta = read_flv_meta_info(context.filename);
+ return boost::rational<int>(static_cast<int>(boost::lexical_cast<double>(meta["framerate"]) * 1000000.0), 1000000);
+ }
+ catch (...)
+ {
+ return fail_value;
+ }
+ }
+ else
+ {
+ time_base.num *= video_context->ticks_per_frame;
+
+ if (!is_sane_fps(time_base))
+ {
+ time_base = fix_time_base(time_base);
+
+ if (!is_sane_fps(time_base) && audio_index > -1)
+ {
+ auto& audio_context = *context.streams[audio_index]->codec;
+ auto& audio_stream = *context.streams[audio_index];
+
+ double duration_sec = audio_stream.duration / static_cast<double>(audio_context.sample_rate);
+
+ time_base.num = static_cast<int>(duration_sec*100000.0);
+ time_base.den = static_cast<int>(video_stream->nb_frames * 100000);
+ }
+ }
+ }
+
+ boost::rational<int> fps(time_base.den, time_base.num);
+ boost::rational<int> closest_fps(0);
+
+ for (auto video_mode : enum_constants<core::video_format>())
+ {
+ auto format = core::video_format_desc(core::video_format(video_mode));
+
+ auto diff1 = boost::abs(boost::rational<int>(format.time_scale, format.duration) - fps);
+ auto diff2 = boost::abs(closest_fps - fps);
+
+ if (diff1 < diff2)
+ closest_fps = boost::rational<int>(format.time_scale, format.duration);
+ }
+
+ return closest_fps;
+ }
+
+ return fail_value;
+}
+
+void fix_meta_data(AVFormatContext& context)
+{
+ auto video_index = av_find_best_stream(&context, AVMEDIA_TYPE_VIDEO, -1, -1, 0, 0);
+
+ if(video_index > -1)
+ {
+ auto video_stream = context.streams[video_index];
+ auto video_context = context.streams[video_index]->codec;
+
+ if(boost::filesystem::path(context.filename).extension().string() == ".flv")
+ {
+ try
+ {
+ auto meta = read_flv_meta_info(context.filename);
+ double fps = boost::lexical_cast<double>(meta["framerate"]);
+ video_stream->nb_frames = static_cast<int64_t>(boost::lexical_cast<double>(meta["duration"])*fps);
+ }
+ catch(...){}
+ }
+ else
+ {
+ auto stream_time = video_stream->time_base;
+ auto duration = video_stream->duration;
+ auto codec_time = video_context->time_base;
+ auto ticks = video_context->ticks_per_frame;
+
+ if(video_stream->nb_frames == 0)
+ video_stream->nb_frames = (duration*stream_time.num*codec_time.den)/(stream_time.den*codec_time.num*ticks);
+ }
+ }
+}
+
+spl::shared_ptr<AVPacket> create_packet()
+{
+ spl::shared_ptr<AVPacket> packet(new AVPacket(), [](AVPacket* p)
+ {
+ av_free_packet(p);
+ delete p;
+ });
+
+ av_init_packet(packet.get());
+ return packet;
+}
+
+spl::shared_ptr<AVFrame> create_frame()
+{
+ spl::shared_ptr<AVFrame> frame(av_frame_alloc(), [](AVFrame* p)
+ {
+ av_frame_free(&p);
+ });
+ return frame;
+}
+
+std::shared_ptr<core::mutable_audio_buffer> flush_audio()
+{
+ static std::shared_ptr<core::mutable_audio_buffer> audio(new core::mutable_audio_buffer());
+ return audio;
+}
+
+std::shared_ptr<core::mutable_audio_buffer> empty_audio()
+{
+ static std::shared_ptr<core::mutable_audio_buffer> audio(new core::mutable_audio_buffer());
+ return audio;
+}
+
+std::shared_ptr<AVFrame> flush_video()
+{
+ static auto video = create_frame();
+ return video;
+}
+
+std::shared_ptr<AVFrame> empty_video()
+{
+ static auto video = create_frame();
+ return video;
+}
+
+spl::shared_ptr<AVCodecContext> open_codec(AVFormatContext& context, enum AVMediaType type, int& index, bool single_threaded)
+{
+ AVCodec* decoder;
+ index = THROW_ON_ERROR2(av_find_best_stream(&context, type, index, -1, &decoder, 0), "");
+ //if(strcmp(decoder->name, "prores") == 0 && decoder->next && strcmp(decoder->next->name, "prores_lgpl") == 0)
+ // decoder = decoder->next;
+
+ THROW_ON_ERROR2(tbb_avcodec_open(context.streams[index]->codec, decoder, single_threaded), "");
+ return spl::shared_ptr<AVCodecContext>(context.streams[index]->codec, tbb_avcodec_close);
+}
+
+spl::shared_ptr<AVFormatContext> open_input(const std::wstring& filename)
+{
+ AVFormatContext* weak_context = nullptr;
+ THROW_ON_ERROR2(avformat_open_input(&weak_context, u8(filename).c_str(), nullptr, nullptr), filename);
+ spl::shared_ptr<AVFormatContext> context(weak_context, [](AVFormatContext* p)
+ {
+ avformat_close_input(&p);
+ });
+ THROW_ON_ERROR2(avformat_find_stream_info(weak_context, nullptr), filename);
+ fix_meta_data(*context);
+ return context;
+}
+
+std::wstring print_mode(int width, int height, double fps, bool interlaced)
+{
+ std::wostringstream fps_ss;
+ fps_ss << std::fixed << std::setprecision(2) << (!interlaced ? fps : 2.0 * fps);
+
+ return boost::lexical_cast<std::wstring>(width) + L"x" + boost::lexical_cast<std::wstring>(height) + (!interlaced ? L"p" : L"i") + fps_ss.str();
+}
+
+bool is_valid_file(const std::wstring& filename, bool only_video)
+{
+ static const auto invalid_exts = {
+ L".png",
+ L".tga",
+ L".bmp",
+ L".jpg",
+ L".jpeg",
+ L".gif",
+ L".tiff",
+ L".tif",
+ L".jp2",
+ L".jpx",
+ L".j2k",
+ L".j2c",
+ L".swf",
+ L".ct"
+ };
+ static const auto only_audio = {
+ L".mp3",
+ L".wav",
+ L".wma"
+ };
+ static const auto valid_exts = {
+ L".m2t",
+ L".mov",
+ L".mp4",
+ L".dv",
+ L".flv",
+ L".mpg",
+ L".dnxhd",
+ L".h264",
+ L".prores",
+ L".mkv",
+ L".mxf"
+ };
+
+ auto ext = boost::to_lower_copy(boost::filesystem::path(filename).extension().wstring());
+
+ if(std::find(valid_exts.begin(), valid_exts.end(), ext) != valid_exts.end())
+ return true;
+
+ if (!only_video && std::find(only_audio.begin(), only_audio.end(), ext) != only_audio.end())
+ return true;
+
+ if(std::find(invalid_exts.begin(), invalid_exts.end(), ext) != invalid_exts.end())
+ return false;
+
+ if (only_video && std::find(only_audio.begin(), only_audio.end(), ext) != only_audio.end())
+ return false;
+
+ auto u8filename = u8(filename);
+
+ int score = 0;
+ AVProbeData pb = {};
+ pb.filename = u8filename.c_str();
+
+ if(av_probe_input_format2(&pb, false, &score) != nullptr)
+ return true;
+
+ std::ifstream file(u8filename);
+
+ std::vector<unsigned char> buf;
+ for(auto file_it = std::istreambuf_iterator<char>(file); file_it != std::istreambuf_iterator<char>() && buf.size() < 1024; ++file_it)
+ buf.push_back(*file_it);
+
+ if(buf.empty())
+ return false;
+
+ pb.buf = buf.data();
+ pb.buf_size = static_cast<int>(buf.size());
+
+ return av_probe_input_format2(&pb, true, &score) != nullptr;
+}
+
+bool try_get_duration(const std::wstring filename, std::int64_t& duration, boost::rational<std::int64_t>& time_base)
+{
+ AVFormatContext* weak_context = nullptr;
+ if (avformat_open_input(&weak_context, u8(filename).c_str(), nullptr, nullptr) < 0)
+ return false;
+
+ std::shared_ptr<AVFormatContext> context(weak_context, [](AVFormatContext* p)
+ {
+ avformat_close_input(&p);
+ });
+
+ context->probesize = context->probesize / 10;
+ context->max_analyze_duration = context->probesize / 10;
+
+ if (avformat_find_stream_info(context.get(), nullptr) < 0)
+ return false;
+
+ const auto fps = read_fps(*context, 1.0);
+
+ const auto rational_fps = boost::rational<std::int64_t>(static_cast<int>(fps * AV_TIME_BASE), AV_TIME_BASE);
+
+ duration = boost::rational_cast<std::int64_t>(context->duration * rational_fps / AV_TIME_BASE);
+
+ if (rational_fps == 0)
+ return false;
+
+ time_base = 1 / rational_fps;
+
+ return true;
+}
+
+std::wstring probe_stem(const std::wstring& stem, bool only_video)
+{
+ auto stem2 = boost::filesystem::path(stem);
+ auto parent = find_case_insensitive(stem2.parent_path().wstring());
+
+ if (!parent)
+ return L"";
+
+ auto dir = boost::filesystem::path(*parent);
+
+ for(auto it = boost::filesystem::directory_iterator(dir); it != boost::filesystem::directory_iterator(); ++it)
+ {
+ if(boost::iequals(it->path().stem().wstring(), stem2.filename().wstring()) && is_valid_file(it->path().wstring(), only_video))
+ return it->path().wstring();
+ }
+ return L"";
+}
+
+core::audio_channel_layout get_audio_channel_layout(int num_channels, std::uint64_t layout, const std::wstring& channel_layout_spec)
+{
+ if (!channel_layout_spec.empty())
+ {
+ if (boost::contains(channel_layout_spec, L":")) // Custom on the fly layout specified.
+ {
+ std::vector<std::wstring> type_and_channel_order;
+ boost::split(type_and_channel_order, channel_layout_spec, boost::is_any_of(L":"), boost::algorithm::token_compress_off);
+ auto& type = type_and_channel_order.at(0);
+ auto& order = type_and_channel_order.at(1);
+
+ return core::audio_channel_layout(num_channels, std::move(type), order);
+ }
+ else // Preconfigured named channel layout selected.
+ {
+ auto channel_layout = core::audio_channel_layout_repository::get_default()->get_layout(channel_layout_spec);
+
+ if (!channel_layout)
+ CASPAR_THROW_EXCEPTION(user_error() << msg_info(L"No channel layout with name " + channel_layout_spec + L" registered"));
+
+ channel_layout->num_channels = num_channels;
+
+ return *channel_layout;
+ }
+ }
+
+ if (!layout)
+ {
+ if (num_channels == 1)
+ return core::audio_channel_layout(num_channels, L"mono", L"FC");
+ else if (num_channels == 2)
+ return core::audio_channel_layout(num_channels, L"stereo", L"FL FR");
+ else
+ return core::audio_channel_layout(num_channels, L"", L""); // Passthru without named channels as is.
+ }
+
+ // What FFmpeg calls "channel layout" is only the "layout type" of a channel layout in
+ // CasparCG where the channel layout supports different orders as well.
+ // The user needs to provide additional mix-configs in casparcg.config to support more
+ // than the most common (5.1, mono and stereo) types.
+
+ // Based on information in https://ffmpeg.org/ffmpeg-utils.html#Channel-Layout
+ switch (layout)
+ {
+ case AV_CH_LAYOUT_MONO:
+ return core::audio_channel_layout(num_channels, L"mono", L"FC");
+ case AV_CH_LAYOUT_STEREO:
+ return core::audio_channel_layout(num_channels, L"stereo", L"FL FR");
+ case AV_CH_LAYOUT_2POINT1:
+ return core::audio_channel_layout(num_channels, L"2.1", L"FL FR LFE");
+ case AV_CH_LAYOUT_SURROUND:
+ return core::audio_channel_layout(num_channels, L"3.0", L"FL FR FC");
+ case AV_CH_LAYOUT_2_1:
+ return core::audio_channel_layout(num_channels, L"3.0(back)", L"FL FR BC");
+ case AV_CH_LAYOUT_4POINT0:
+ return core::audio_channel_layout(num_channels, L"4.0", L"FL FR FC BC");
+ case AV_CH_LAYOUT_QUAD:
+ return core::audio_channel_layout(num_channels, L"quad", L"FL FR BL BR");
+ case AV_CH_LAYOUT_2_2:
+ return core::audio_channel_layout(num_channels, L"quad(side)", L"FL FR SL SR");
+ case AV_CH_LAYOUT_3POINT1:
+ return core::audio_channel_layout(num_channels, L"3.1", L"FL FR FC LFE");
+ case AV_CH_LAYOUT_5POINT0_BACK:
+ return core::audio_channel_layout(num_channels, L"5.0", L"FL FR FC BL BR");
+ case AV_CH_LAYOUT_5POINT0:
+ return core::audio_channel_layout(num_channels, L"5.0(side)", L"FL FR FC SL SR");
+ case AV_CH_LAYOUT_4POINT1:
+ return core::audio_channel_layout(num_channels, L"4.1", L"FL FR FC LFE BC");
+ case AV_CH_LAYOUT_5POINT1_BACK:
+ return core::audio_channel_layout(num_channels, L"5.1", L"FL FR FC LFE BL BR");
+ case AV_CH_LAYOUT_5POINT1:
+ return core::audio_channel_layout(num_channels, L"5.1(side)", L"FL FR FC LFE SL SR");
+ case AV_CH_LAYOUT_6POINT0:
+ return core::audio_channel_layout(num_channels, L"6.0", L"FL FR FC BC SL SR");
+ case AV_CH_LAYOUT_6POINT0_FRONT:
+ return core::audio_channel_layout(num_channels, L"6.0(front)", L"FL FR FLC FRC SL SR");
+ case AV_CH_LAYOUT_HEXAGONAL:
+ return core::audio_channel_layout(num_channels, L"hexagonal", L"FL FR FC BL BR BC");
+ case AV_CH_LAYOUT_6POINT1:
+ return core::audio_channel_layout(num_channels, L"6.1", L"FL FR FC LFE BC SL SR");
+ case AV_CH_LAYOUT_6POINT1_BACK:
+ return core::audio_channel_layout(num_channels, L"6.1(back)", L"FL FR FC LFE BL BR BC");
+ case AV_CH_LAYOUT_6POINT1_FRONT:
+ return core::audio_channel_layout(num_channels, L"6.1(front)", L"FL FR LFE FLC FRC SL SR");
+ case AV_CH_LAYOUT_7POINT0:
+ return core::audio_channel_layout(num_channels, L"7.0", L"FL FR FC BL BR SL SR");
+ case AV_CH_LAYOUT_7POINT0_FRONT:
+ return core::audio_channel_layout(num_channels, L"7.0(front)", L"FL FR FC FLC FRC SL SR");
+ case AV_CH_LAYOUT_7POINT1:
+ return core::audio_channel_layout(num_channels, L"7.1", L"FL FR FC LFE BL BR SL SR");
+ case AV_CH_LAYOUT_7POINT1_WIDE_BACK:
+ return core::audio_channel_layout(num_channels, L"7.1(wide)", L"FL FR FC LFE BL BR FLC FRC");
+ case AV_CH_LAYOUT_7POINT1_WIDE:
+ return core::audio_channel_layout(num_channels, L"7.1(wide-side)", L"FL FR FC LFE FLC FRC SL SR");
+ case AV_CH_LAYOUT_STEREO_DOWNMIX:
+ return core::audio_channel_layout(num_channels, L"downmix", L"DL DR");
+ default:
+ // Passthru
+ return core::audio_channel_layout(num_channels, L"", L"");
+ }
+}
+
+// av_get_default_channel_layout does not work for layouts not predefined in ffmpeg. This is needed to support > 8 channels.
+std::uint64_t create_channel_layout_bitmask(int num_channels)
+{
+ if (num_channels > 63)
+ CASPAR_THROW_EXCEPTION(invalid_argument() << msg_info(L"FFmpeg cannot handle more than 63 audio channels"));
+
+ const auto ALL_63_CHANNELS = 0x7FFFFFFFFFFFFFFFULL;
+
+ auto to_shift = 63 - num_channels;
+ auto result = ALL_63_CHANNELS >> to_shift;
+
+ return static_cast<std::uint64_t>(result);
+}
+
+std::string to_string(const boost::rational<int>& framerate)
+{
+ return boost::lexical_cast<std::string>(framerate.numerator())
+ + "/" + boost::lexical_cast<std::string>(framerate.denominator()) + " (" + boost::lexical_cast<std::string>(static_cast<double>(framerate.numerator()) / static_cast<double>(framerate.denominator())) + ") fps";
+}
+
+std::vector<int> find_audio_cadence(const boost::rational<int>& framerate)
+{
+ static std::map<boost::rational<int>, std::vector<int>> CADENCES_BY_FRAMERATE = []
+ {
+ std::map<boost::rational<int>, std::vector<int>> result;
+
+ for (core::video_format format : enum_constants<core::video_format>())
+ {
+ core::video_format_desc desc(format);
+ boost::rational<int> format_rate(desc.time_scale, desc.duration);
+
+ result.insert(std::make_pair(format_rate, desc.audio_cadence));
+ }
+
+ return result;
+ }();
+
+ auto exact_match = CADENCES_BY_FRAMERATE.find(framerate);
+
+ if (exact_match != CADENCES_BY_FRAMERATE.end())
+ return exact_match->second;
+
+ boost::rational<int> closest_framerate_diff = std::numeric_limits<int>::max();
+ boost::rational<int> closest_framerate = 0;
+
+ for (auto format_framerate : CADENCES_BY_FRAMERATE | boost::adaptors::map_keys)
+ {
+ auto diff = boost::abs(framerate - format_framerate);
+
+ if (diff < closest_framerate_diff)
+ {
+ closest_framerate_diff = diff;
+ closest_framerate = format_framerate;
+ }
+ }
+
+ if (is_logging_quiet_for_thread())
+ CASPAR_LOG(debug) << "No exact audio cadence match found for framerate " << to_string(framerate)
+ << "\nClosest match is " << to_string(closest_framerate)
+ << "\nwhich is a " << to_string(closest_framerate_diff) << " difference.";
+ else
+ CASPAR_LOG(warning) << "No exact audio cadence match found for framerate " << to_string(framerate)
+ << "\nClosest match is " << to_string(closest_framerate)
+ << "\nwhich is a " << to_string(closest_framerate_diff) << " difference.";
+
+ return CADENCES_BY_FRAMERATE[closest_framerate];
+}
+
+//
+//void av_dup_frame(AVFrame* frame)
+//{
+// AVFrame* new_frame = avcodec_alloc_frame();
+//
+//
+// const uint8_t *src_data[4] = {0};
+// memcpy(const_cast<uint8_t**>(&src_data[0]), frame->data, 4);
+// const int src_linesizes[4] = {0};
+// memcpy(const_cast<int*>(&src_linesizes[0]), frame->linesize, 4);
+//
+// av_image_alloc(new_frame->data, new_frame->linesize, new_frame->width, new_frame->height, frame->format, 16);
+//
+// av_image_copy(new_frame->data, new_frame->linesize, src_data, src_linesizes, frame->format, new_frame->width, new_frame->height);
+//
+// frame =
+//}
+
+}}
projects / casparcg / blobdiff