-/*\r
-* Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>\r
-*\r
-* This file is part of CasparCG (www.casparcg.com).\r
-*\r
-* CasparCG is free software: you can redistribute it and/or modify\r
-* it under the terms of the GNU General Public License as published by\r
-* the Free Software Foundation, either version 3 of the License, or\r
-* (at your option) any later version.\r
-*\r
-* CasparCG is distributed in the hope that it will be useful,\r
-* but WITHOUT ANY WARRANTY; without even the implied warranty of\r
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
-* GNU General Public License for more details.\r
-*\r
-* You should have received a copy of the GNU General Public License\r
-* along with CasparCG. If not, see <http://www.gnu.org/licenses/>.\r
-*\r
-* Author: Robert Nagy, ronag89@gmail.com\r
-*/\r
-\r
-#include "../../StdAfx.h"\r
-\r
-#include "frame_muxer.h"\r
-\r
-#include "../filter/filter.h"\r
-#include "../util/util.h"\r
-\r
-#include <core/producer/frame_producer.h>\r
-#include <core/frame/draw_frame.h>\r
-#include <core/frame/frame_transform.h>\r
-#include <core/frame/pixel_format.h>\r
-#include <core/frame/frame_factory.h>\r
-#include <core/frame/frame.h>\r
-\r
-#include <common/env.h>\r
-#include <common/except.h>\r
-#include <common/log.h>\r
-\r
-#if defined(_MSC_VER)\r
-#pragma warning (push)\r
-#pragma warning (disable : 4244)\r
-#endif\r
-extern "C" \r
-{\r
- #define __STDC_CONSTANT_MACROS\r
- #define __STDC_LIMIT_MACROS\r
- #include <libavcodec/avcodec.h>\r
- #include <libavformat/avformat.h>\r
-}\r
-#if defined(_MSC_VER)\r
-#pragma warning (pop)\r
-#endif\r
-\r
-#include <common/assert.h>\r
-#include <boost/foreach.hpp>\r
-#include <boost/range/algorithm_ext/push_back.hpp>\r
-#include <boost/algorithm/string/predicate.hpp>\r
-\r
-#include <deque>\r
-#include <queue>\r
-#include <vector>\r
-\r
-using namespace caspar::core;\r
-\r
-namespace caspar { namespace ffmpeg {\r
- \r
-struct frame_muxer::impl : boost::noncopyable\r
-{ \r
- std::queue<core::mutable_frame> video_stream_;\r
- core::audio_buffer audio_stream_;\r
- std::queue<draw_frame> frame_buffer_;\r
- display_mode display_mode_;\r
- const double in_fps_;\r
- const video_format_desc format_desc_;\r
- \r
- std::vector<int> audio_cadence_;\r
- \r
- spl::shared_ptr<core::frame_factory> frame_factory_;\r
- \r
- filter filter_;\r
- const std::wstring filter_str_;\r
- bool force_deinterlacing_;\r
- \r
- impl(double in_fps, const spl::shared_ptr<core::frame_factory>& frame_factory, const core::video_format_desc& format_desc, const std::wstring& filter_str)\r
- : display_mode_(display_mode::invalid)\r
- , in_fps_(in_fps)\r
- , format_desc_(format_desc)\r
- , audio_cadence_(format_desc_.audio_cadence)\r
- , frame_factory_(frame_factory)\r
- , filter_str_(filter_str)\r
- , force_deinterlacing_(env::properties().get(L"configuration.force-deinterlace", true))\r
- { \r
- // Note: Uses 1 step rotated cadence for 1001 modes (1602, 1602, 1601, 1602, 1601)\r
- // This cadence fills the audio mixer most optimally.\r
- boost::range::rotate(audio_cadence_, std::end(audio_cadence_)-1);\r
- }\r
- \r
- void push_video(const std::shared_ptr<AVFrame>& video)\r
- { \r
- if(!video)\r
- return;\r
-\r
- if(!video->data[0])\r
- {\r
- auto empty_frame = frame_factory_->create_frame(this, core::pixel_format_desc(core::pixel_format::invalid));\r
- video_stream_.push(std::move(empty_frame));\r
- display_mode_ = display_mode::simple;\r
- }\r
- else\r
- {\r
- if(display_mode_ == display_mode::invalid)\r
- update_display_mode(video);\r
- \r
- filter_.push(video);\r
- BOOST_FOREACH(auto& av_frame, filter_.poll_all()) \r
- video_stream_.push(make_frame(this, av_frame, format_desc_.fps, *frame_factory_)); \r
- }\r
-\r
- merge();\r
- }\r
- \r
- void push_audio(const std::shared_ptr<AVFrame>& audio)\r
- {\r
- if(!audio)\r
- return;\r
-\r
- if(!audio->data[0]) \r
- {\r
- boost::range::push_back(audio_stream_, core::audio_buffer(audio_cadence_.front(), 0)); \r
- }\r
- else\r
- {\r
- auto ptr = reinterpret_cast<int32_t*>(audio->data[0]);\r
- audio_stream_.insert(audio_stream_.end(), ptr, ptr + audio->linesize[0]/sizeof(int32_t));\r
- }\r
-\r
- merge();\r
- }\r
- \r
- bool video_ready() const\r
- { \r
- switch(display_mode_)\r
- {\r
- case display_mode::deinterlace_bob_reinterlace: \r
- case display_mode::interlace: \r
- case display_mode::half:\r
- return video_stream_.size() >= 2;\r
- default: \r
- return video_stream_.size() >= 1;\r
- }\r
- }\r
- \r
- bool audio_ready() const\r
- {\r
- switch(display_mode_)\r
- {\r
- case display_mode::duplicate: \r
- return audio_stream_.size() >= static_cast<size_t>(audio_cadence_[0] + audio_cadence_[1 % audio_cadence_.size()]);\r
- default: \r
- return audio_stream_.size() >= static_cast<size_t>(audio_cadence_.front());\r
- }\r
- }\r
-\r
- bool empty() const\r
- {\r
- return frame_buffer_.empty();\r
- }\r
-\r
- core::draw_frame front() const\r
- {\r
- return frame_buffer_.front();\r
- }\r
-\r
- void pop()\r
- {\r
- frame_buffer_.pop();\r
- }\r
- \r
- void merge()\r
- {\r
- while(video_ready() && audio_ready() && display_mode_ != display_mode::invalid)\r
- { \r
- auto frame1 = pop_video();\r
- frame1.audio_data() = pop_audio();\r
-\r
- switch(display_mode_)\r
- {\r
- case display_mode::simple: \r
- case display_mode::deinterlace_bob: \r
- case display_mode::deinterlace: \r
- {\r
- frame_buffer_.push(core::draw_frame(std::move(frame1)));\r
- break;\r
- }\r
- case display_mode::interlace: \r
- case display_mode::deinterlace_bob_reinterlace: \r
- { \r
- auto frame2 = pop_video();\r
-\r
- frame_buffer_.push(core::draw_frame::interlace(\r
- core::draw_frame(std::move(frame1)),\r
- core::draw_frame(std::move(frame2)),\r
- format_desc_.field_mode)); \r
- break;\r
- }\r
- case display_mode::duplicate: \r
- {\r
- boost::range::push_back(frame1.audio_data(), pop_audio());\r
-\r
- auto draw_frame = core::draw_frame(std::move(frame1));\r
- frame_buffer_.push(draw_frame);\r
- frame_buffer_.push(draw_frame);\r
- break;\r
- }\r
- case display_mode::half: \r
- { \r
- pop_video(); // Throw away\r
-\r
- frame_buffer_.push(core::draw_frame(std::move(frame1)));\r
- break;\r
- }\r
- default:\r
- CASPAR_THROW_EXCEPTION(invalid_operation());\r
- }\r
- }\r
- }\r
- \r
- core::mutable_frame pop_video()\r
- {\r
- auto frame = std::move(video_stream_.front());\r
- video_stream_.pop(); \r
- return std::move(frame);\r
- }\r
-\r
- core::audio_buffer pop_audio()\r
- {\r
- if(audio_stream_.size() < audio_cadence_.front())\r
- CASPAR_THROW_EXCEPTION(out_of_range());\r
-\r
- auto begin = audio_stream_.begin();\r
- auto end = begin + audio_cadence_.front();\r
-\r
- core::audio_buffer samples(begin, end);\r
- audio_stream_.erase(begin, end);\r
- \r
- boost::range::rotate(audio_cadence_, std::begin(audio_cadence_)+1);\r
-\r
- return samples;\r
- }\r
- \r
- void update_display_mode(const std::shared_ptr<AVFrame>& frame)\r
- {\r
- std::wstring filter_str = filter_str_;\r
-\r
- display_mode_ = display_mode::simple;\r
-\r
- auto mode = get_mode(*frame);\r
- if(mode == core::field_mode::progressive && frame->height < 720 && in_fps_ < 50.0) // SD frames are interlaced. Probably incorrect meta-data. Fix it.\r
- mode = core::field_mode::upper;\r
-\r
- auto fps = in_fps_;\r
-\r
- if(filter::is_deinterlacing(filter_str_))\r
- mode = core::field_mode::progressive;\r
-\r
- if(filter::is_double_rate(filter_str_))\r
- fps *= 2;\r
- \r
- display_mode_ = get_display_mode(mode, fps, format_desc_.field_mode, format_desc_.fps);\r
- \r
- if((frame->height != 480 || format_desc_.height != 486) && // don't deinterlace for NTSC DV\r
- display_mode_ == display_mode::simple && mode != core::field_mode::progressive && format_desc_.field_mode != core::field_mode::progressive && \r
- frame->height != format_desc_.height)\r
- {\r
- display_mode_ = display_mode::deinterlace_bob_reinterlace; // The frame will most likely be scaled, we need to deinterlace->reinterlace \r
- }\r
-\r
- // ALWAYS de-interlace, until we have GPU de-interlacing.\r
- if(force_deinterlacing_ && frame->interlaced_frame && display_mode_ != display_mode::deinterlace_bob && display_mode_ != display_mode::deinterlace)\r
- display_mode_ = display_mode::deinterlace_bob_reinterlace;\r
- \r
- if(display_mode_ == display_mode::deinterlace)\r
- filter_str = append_filter(filter_str, L"YADIF=0:-1");\r
- else if(display_mode_ == display_mode::deinterlace_bob || display_mode_ == display_mode::deinterlace_bob_reinterlace)\r
- filter_str = append_filter(filter_str, L"YADIF=1:-1");\r
-\r
- if(display_mode_ == display_mode::invalid)\r
- {\r
- CASPAR_LOG(warning) << L"[frame_muxer] Auto-transcode: Failed to detect display-mode.";\r
- display_mode_ = display_mode::simple;\r
- }\r
-\r
- if(frame->height == 480) // NTSC DV\r
- {\r
- auto pad_str = L"PAD=" + boost::lexical_cast<std::wstring>(frame->width) + L":486:0:2:black";\r
- filter_str = append_filter(filter_str, pad_str);\r
- }\r
-\r
- filter_ = filter(filter_str);\r
- CASPAR_LOG(info) << L"[frame_muxer] " << display_mode_ << L" " << print_mode(frame->width, frame->height, in_fps_, frame->interlaced_frame > 0);\r
- }\r
- \r
- uint32_t calc_nb_frames(uint32_t nb_frames) const\r
- {\r
- uint64_t nb_frames2 = nb_frames;\r
- \r
- if(filter_.is_double_rate()) // Take into account transformations in filter.\r
- nb_frames2 *= 2;\r
-\r
- switch(display_mode_) // Take into account transformation in run.\r
- {\r
- case display_mode::deinterlace_bob_reinterlace:\r
- case display_mode::interlace: \r
- case display_mode::half:\r
- nb_frames2 /= 2;\r
- break;\r
- case display_mode::duplicate:\r
- nb_frames2 *= 2;\r
- break;\r
- }\r
-\r
- return static_cast<uint32_t>(nb_frames2);\r
- }\r
-\r
- void clear()\r
- {\r
- while(!video_stream_.empty())\r
- video_stream_.pop(); \r
-\r
- audio_stream_.clear();\r
-\r
- while(!frame_buffer_.empty())\r
- frame_buffer_.pop();\r
-\r
- filter_ = filter(filter_.filter_str());\r
- }\r
-};\r
-\r
-frame_muxer::frame_muxer(double in_fps, const spl::shared_ptr<core::frame_factory>& frame_factory, const core::video_format_desc& format_desc, const std::wstring& filter)\r
- : impl_(new impl(in_fps, frame_factory, format_desc, filter)){}\r
-void frame_muxer::push_video(const std::shared_ptr<AVFrame>& frame){impl_->push_video(frame);}\r
-void frame_muxer::push_audio(const std::shared_ptr<AVFrame>& frame){impl_->push_audio(frame);}\r
-bool frame_muxer::empty() const{return impl_->empty();}\r
-core::draw_frame frame_muxer::front() const{return impl_->front();}\r
-void frame_muxer::pop(){return impl_->pop();}\r
-void frame_muxer::clear(){impl_->clear();}\r
-uint32_t frame_muxer::calc_nb_frames(uint32_t nb_frames) const {return impl_->calc_nb_frames(nb_frames);}\r
-bool frame_muxer::video_ready() const{return impl_->video_ready();}\r
-bool frame_muxer::audio_ready() const{return impl_->audio_ready();}\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 "frame_muxer.h"
+
+#include "../filter/filter.h"
+#include "../util/util.h"
+#include "../../ffmpeg.h"
+
+#include <core/producer/frame_producer.h>
+#include <core/frame/draw_frame.h>
+#include <core/frame/frame_transform.h>
+#include <core/frame/pixel_format.h>
+#include <core/frame/frame_factory.h>
+#include <core/frame/frame.h>
+#include <core/frame/audio_channel_layout.h>
+
+#include <common/env.h>
+#include <common/except.h>
+#include <common/log.h>
+
+#if defined(_MSC_VER)
+#pragma warning (push)
+#pragma warning (disable : 4244)
+#endif
+extern "C"
+{
+ #define __STDC_CONSTANT_MACROS
+ #define __STDC_LIMIT_MACROS
+ #include <libavcodec/avcodec.h>
+ #include <libavformat/avformat.h>
+}
+#if defined(_MSC_VER)
+#pragma warning (pop)
+#endif
+
+#include <common/assert.h>
+#include <boost/range/algorithm_ext/push_back.hpp>
+#include <boost/algorithm/string/predicate.hpp>
+#include <boost/thread/mutex.hpp>
+#include <boost/optional.hpp>
+
+#include <deque>
+#include <queue>
+#include <vector>
+
+using namespace caspar::core;
+
+namespace caspar { namespace ffmpeg {
+struct av_frame_format
+{
+ int pix_format;
+ std::array<int, AV_NUM_DATA_POINTERS> line_sizes;
+ int width;
+ int height;
+
+ av_frame_format(const AVFrame& frame)
+ : pix_format(frame.format)
+ , width(frame.width)
+ , height(frame.height)
+ {
+ boost::copy(frame.linesize, line_sizes.begin());
+ }
+
+ bool operator==(const av_frame_format& other) const
+ {
+ return pix_format == other.pix_format
+ && line_sizes == other.line_sizes
+ && width == other.width
+ && height == other.height;
+ }
+
+ bool operator!=(const av_frame_format& other) const
+ {
+ return !(*this == other);
+ }
+};
+
+struct frame_muxer::impl : boost::noncopyable
+{
+ std::queue<std::queue<core::mutable_frame>> video_streams_;
+ std::queue<core::mutable_audio_buffer> audio_streams_;
+ std::queue<core::draw_frame> frame_buffer_;
+ display_mode display_mode_ = display_mode::invalid;
+ const boost::rational<int> in_framerate_;
+ const video_format_desc format_desc_;
+ const audio_channel_layout audio_channel_layout_;
+
+ std::vector<int> audio_cadence_ = format_desc_.audio_cadence;
+
+ spl::shared_ptr<core::frame_factory> frame_factory_;
+ boost::optional<av_frame_format> previously_filtered_frame_;
+
+ std::unique_ptr<filter> filter_;
+ const std::wstring filter_str_;
+ const bool multithreaded_filter_;
+ bool force_deinterlacing_ = env::properties().get(L"configuration.force-deinterlace", false);
+
+ mutable boost::mutex out_framerate_mutex_;
+ boost::rational<int> out_framerate_;
+
+ impl(
+ boost::rational<int> in_framerate,
+ const spl::shared_ptr<core::frame_factory>& frame_factory,
+ const core::video_format_desc& format_desc,
+ const core::audio_channel_layout& channel_layout,
+ const std::wstring& filter_str,
+ bool multithreaded_filter)
+ : in_framerate_(in_framerate)
+ , format_desc_(format_desc)
+ , audio_channel_layout_(channel_layout)
+ , frame_factory_(frame_factory)
+ , filter_str_(filter_str)
+ , multithreaded_filter_(multithreaded_filter)
+ {
+ video_streams_.push(std::queue<core::mutable_frame>());
+ audio_streams_.push(core::mutable_audio_buffer());
+
+ set_out_framerate(in_framerate_);
+ }
+
+ void push(const std::shared_ptr<AVFrame>& video_frame)
+ {
+ if (!video_frame)
+ return;
+
+ av_frame_format current_frame_format(*video_frame);
+
+ if (previously_filtered_frame_ && video_frame->data[0] && *previously_filtered_frame_ != current_frame_format)
+ {
+ // Fixes bug where avfilter crashes server on some DV files (starts in YUV420p but changes to YUV411p after the first frame).
+ if (ffmpeg::is_logging_quiet_for_thread())
+ CASPAR_LOG(debug) << L"[frame_muxer] Frame format has changed. Resetting display mode.";
+ else
+ CASPAR_LOG(info) << L"[frame_muxer] Frame format has changed. Resetting display mode.";
+
+ display_mode_ = display_mode::invalid;
+ filter_.reset();
+ previously_filtered_frame_ = boost::none;
+ }
+
+ if (video_frame == flush_video())
+ {
+ video_streams_.push(std::queue<core::mutable_frame>());
+ }
+ else if (video_frame == empty_video())
+ {
+ video_streams_.back().push(frame_factory_->create_frame(this, core::pixel_format::invalid, audio_channel_layout_));
+ display_mode_ = display_mode::simple;
+ }
+ else
+ {
+ if (!filter_ || display_mode_ == display_mode::invalid)
+ update_display_mode(video_frame);
+
+ if (filter_)
+ {
+ filter_->push(video_frame);
+ previously_filtered_frame_ = current_frame_format;
+
+ for (auto& av_frame : filter_->poll_all())
+ video_streams_.back().push(make_frame(this, av_frame, *frame_factory_, audio_channel_layout_));
+ }
+ }
+
+ if (video_streams_.back().size() > 32)
+ CASPAR_THROW_EXCEPTION(invalid_operation() << source_info("frame_muxer") << msg_info("video-stream overflow. This can be caused by incorrect frame-rate. Check clip meta-data."));
+ }
+
+ void push(const std::shared_ptr<core::mutable_audio_buffer>& audio)
+ {
+ if (!audio)
+ return;
+
+ if (audio == flush_audio())
+ {
+ audio_streams_.push(core::mutable_audio_buffer());
+ }
+ else if (audio == empty_audio())
+ {
+ boost::range::push_back(audio_streams_.back(), core::mutable_audio_buffer(audio_cadence_.front() * audio_channel_layout_.num_channels, 0));
+ }
+ else
+ {
+ boost::range::push_back(audio_streams_.back(), *audio);
+ }
+
+ if (audio_streams_.back().size() > 32 * audio_cadence_.front() * audio_channel_layout_.num_channels)
+ BOOST_THROW_EXCEPTION(invalid_operation() << source_info("frame_muxer") << msg_info("audio-stream overflow. This can be caused by incorrect frame-rate. Check clip meta-data."));
+ }
+
+ bool video_ready() const
+ {
+ return video_streams_.size() > 1 || (video_streams_.size() >= audio_streams_.size() && video_ready2());
+ }
+
+ bool audio_ready() const
+ {
+ return audio_streams_.size() > 1 || (audio_streams_.size() >= video_streams_.size() && audio_ready2());
+ }
+
+ bool video_ready2() const
+ {
+ return video_streams_.front().size() >= 1;
+ }
+
+ bool audio_ready2() const
+ {
+ return audio_streams_.front().size() >= audio_cadence_.front() * audio_channel_layout_.num_channels;
+ }
+
+ core::draw_frame poll()
+ {
+ if (!frame_buffer_.empty())
+ {
+ auto frame = frame_buffer_.front();
+ frame_buffer_.pop();
+ return frame;
+ }
+
+ if (video_streams_.size() > 1 && audio_streams_.size() > 1 && (!video_ready2() || !audio_ready2()))
+ {
+ if (!video_streams_.front().empty() || !audio_streams_.front().empty())
+ CASPAR_LOG(trace) << "Truncating: " << video_streams_.front().size() << L" video-frames, " << audio_streams_.front().size() << L" audio-samples.";
+
+ video_streams_.pop();
+ audio_streams_.pop();
+ }
+
+ if (!video_ready2() || !audio_ready2() || display_mode_ == display_mode::invalid)
+ return core::draw_frame::empty();
+
+ auto frame = pop_video();
+ frame.audio_data() = pop_audio();
+
+ frame_buffer_.push(core::draw_frame(std::move(frame)));
+
+ return frame_buffer_.empty() ? core::draw_frame::empty() : poll();
+ }
+
+ core::mutable_frame pop_video()
+ {
+ auto frame = std::move(video_streams_.front().front());
+ video_streams_.front().pop();
+ return frame;
+ }
+
+ core::mutable_audio_buffer pop_audio()
+ {
+ CASPAR_VERIFY(audio_streams_.front().size() >= audio_cadence_.front() * audio_channel_layout_.num_channels);
+
+ auto begin = audio_streams_.front().begin();
+ auto end = begin + (audio_cadence_.front() * audio_channel_layout_.num_channels);
+
+ core::mutable_audio_buffer samples(begin, end);
+ audio_streams_.front().erase(begin, end);
+
+ boost::range::rotate(audio_cadence_, std::begin(audio_cadence_) + 1);
+
+ return samples;
+ }
+
+ uint32_t calc_nb_frames(uint32_t nb_frames) const
+ {
+ uint64_t nb_frames2 = nb_frames;
+
+ if(filter_ && filter_->is_double_rate()) // Take into account transformations in filter.
+ nb_frames2 *= 2;
+
+ return static_cast<uint32_t>(nb_frames2);
+ }
+
+ boost::rational<int> out_framerate() const
+ {
+ boost::lock_guard<boost::mutex> lock(out_framerate_mutex_);
+
+ return out_framerate_;
+ }
+private:
+ void update_display_mode(const std::shared_ptr<AVFrame>& frame)
+ {
+ std::wstring filter_str = filter_str_;
+
+ display_mode_ = display_mode::simple;
+
+ auto mode = get_mode(*frame);
+ if (mode == core::field_mode::progressive && frame->height < 720 && in_framerate_ < 50) // SD frames are interlaced. Probably incorrect meta-data. Fix it.
+ mode = core::field_mode::upper;
+
+ if (filter::is_deinterlacing(filter_str_))
+ {
+ display_mode_ = display_mode::simple;
+ }
+ else if (mode != core::field_mode::progressive)
+ {
+ if (force_deinterlacing_)
+ {
+ display_mode_ = display_mode::deinterlace_bob;
+ }
+ else
+ {
+ bool output_also_interlaced = format_desc_.field_mode != core::field_mode::progressive;
+ bool interlaced_output_compatible =
+ output_also_interlaced
+ && (
+ (frame->height == 480 && format_desc_.height == 486) // don't deinterlace for NTSC DV
+ || frame->height == format_desc_.height
+ )
+ && in_framerate_ == format_desc_.framerate;
+
+ display_mode_ = interlaced_output_compatible ? display_mode::simple : display_mode::deinterlace_bob;
+ }
+ }
+
+ if (display_mode_ == display_mode::deinterlace_bob)
+ filter_str = append_filter(filter_str, L"YADIF=1:-1");
+
+ auto out_framerate = in_framerate_;
+
+ if (filter::is_double_rate(filter_str))
+ out_framerate *= 2;
+
+ if (frame->height == 480) // NTSC DV
+ {
+ auto pad_str = L"PAD=" + boost::lexical_cast<std::wstring>(frame->width) + L":486:0:2:black";
+ filter_str = append_filter(filter_str, pad_str);
+ }
+
+ filter_.reset (new filter(
+ frame->width,
+ frame->height,
+ 1 / in_framerate_,
+ in_framerate_,
+ boost::rational<int>(frame->sample_aspect_ratio.num, frame->sample_aspect_ratio.den),
+ static_cast<AVPixelFormat>(frame->format),
+ std::vector<AVPixelFormat>(),
+ u8(filter_str)));
+
+ set_out_framerate(out_framerate);
+
+ auto in_fps = static_cast<double>(in_framerate_.numerator()) / static_cast<double>(in_framerate_.denominator());
+
+ if (ffmpeg::is_logging_quiet_for_thread())
+ CASPAR_LOG(debug) << L"[frame_muxer] " << display_mode_ << L" " << print_mode(frame->width, frame->height, in_fps, frame->interlaced_frame > 0);
+ else
+ CASPAR_LOG(info) << L"[frame_muxer] " << display_mode_ << L" " << print_mode(frame->width, frame->height, in_fps, frame->interlaced_frame > 0);
+ }
+
+ void merge()
+ {
+ while (video_ready() && audio_ready() && display_mode_ != display_mode::invalid)
+ {
+ auto frame1 = pop_video();
+ frame1.audio_data() = pop_audio();
+
+ frame_buffer_.push(core::draw_frame(std::move(frame1)));
+ }
+ }
+
+ void set_out_framerate(boost::rational<int> out_framerate)
+ {
+ boost::lock_guard<boost::mutex> lock(out_framerate_mutex_);
+
+ bool changed = out_framerate != out_framerate_;
+ out_framerate_ = std::move(out_framerate);
+
+ if (changed)
+ update_audio_cadence();
+ }
+
+ void update_audio_cadence()
+ {
+ audio_cadence_ = find_audio_cadence(out_framerate_);
+
+ // Note: Uses 1 step rotated cadence for 1001 modes (1602, 1602, 1601, 1602, 1601)
+ // This cadence fills the audio mixer most optimally.
+ boost::range::rotate(audio_cadence_, std::end(audio_cadence_) - 1);
+ }
+};
+
+frame_muxer::frame_muxer(
+ boost::rational<int> in_framerate,
+ const spl::shared_ptr<core::frame_factory>& frame_factory,
+ const core::video_format_desc& format_desc,
+ const core::audio_channel_layout& channel_layout,
+ const std::wstring& filter,
+ bool multithreaded_filter)
+ : impl_(new impl(in_framerate, frame_factory, format_desc, channel_layout, filter, multithreaded_filter)){}
+void frame_muxer::push(const std::shared_ptr<AVFrame>& video){impl_->push(video);}
+void frame_muxer::push(const std::shared_ptr<core::mutable_audio_buffer>& audio){impl_->push(audio);}
+core::draw_frame frame_muxer::poll(){return impl_->poll();}
+uint32_t frame_muxer::calc_nb_frames(uint32_t nb_frames) const {return impl_->calc_nb_frames(nb_frames);}
+bool frame_muxer::video_ready() const{return impl_->video_ready();}
+bool frame_muxer::audio_ready() const{return impl_->audio_ready();}
+boost::rational<int> frame_muxer::out_framerate() const { return impl_->out_framerate(); }
+}}
projects / casparcg / blobdiff