-/*\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 "ffmpeg_producer.h"\r
-\r
-#include "../ffmpeg_error.h"\r
-\r
-#include "muxer/frame_muxer.h"\r
-#include "input/input.h"\r
-#include "util/util.h"\r
-#include "audio/audio_decoder.h"\r
-#include "video/video_decoder.h"\r
-\r
-#include <common/env.h>\r
-#include <common/log.h>\r
-#include <common/utility/param.h>\r
-#include <common/diagnostics/graph.h>\r
-\r
-#include <core/video_format.h>\r
-#include <core/producer/frame_producer.h>\r
-#include <core/producer/frame/frame_factory.h>\r
-#include <core/producer/frame/basic_frame.h>\r
-#include <core/producer/frame/frame_transform.h>\r
-\r
-#include <boost/algorithm/string.hpp>\r
-#include <common/assert.h>\r
-#include <boost/assign.hpp>\r
-#include <boost/timer.hpp>\r
-#include <boost/foreach.hpp>\r
-#include <boost/filesystem.hpp>\r
-#include <boost/range/algorithm/find_if.hpp>\r
-#include <boost/range/algorithm/find.hpp>\r
-#include <boost/property_tree/ptree.hpp>\r
-#include <boost/regex.hpp>\r
-#include <boost/thread/future.hpp>\r
-\r
-#include <tbb/parallel_invoke.h>\r
-\r
-#include <limits>\r
-#include <memory>\r
-#include <queue>\r
-\r
-namespace caspar { namespace ffmpeg {\r
- \r
-struct ffmpeg_producer : public core::frame_producer\r
-{\r
- const std::wstring filename_;\r
- \r
- const safe_ptr<diagnostics::graph> graph_;\r
- boost::timer frame_timer_;\r
- \r
- const safe_ptr<core::frame_factory> frame_factory_;\r
- const core::video_format_desc format_desc_;\r
-\r
- input input_; \r
- std::unique_ptr<video_decoder> video_decoder_;\r
- std::unique_ptr<audio_decoder> audio_decoder_; \r
- std::unique_ptr<frame_muxer> muxer_;\r
-\r
- const double fps_;\r
- const uint32_t start_;\r
- const uint32_t length_;\r
-\r
- safe_ptr<core::basic_frame> last_frame_;\r
- \r
- std::queue<std::pair<safe_ptr<core::basic_frame>, uint32_t>> frame_buffer_;\r
-\r
- int64_t frame_number_;\r
- uint32_t file_frame_number_;\r
- \r
-public:\r
- explicit ffmpeg_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::wstring& filename, const std::wstring& filter, bool loop, uint32_t start, uint32_t length) \r
- : filename_(filename)\r
- , frame_factory_(frame_factory) \r
- , format_desc_(frame_factory->get_video_format_desc())\r
- , input_(graph_, filename_, loop, start, length)\r
- , fps_(read_fps(*input_.context(), format_desc_.fps))\r
- , start_(start)\r
- , length_(length)\r
- , last_frame_(core::basic_frame::empty())\r
- , frame_number_(0)\r
- {\r
- graph_->set_color("frame-time", diagnostics::color(0.1f, 1.0f, 0.1f));\r
- graph_->set_color("underflow", diagnostics::color(0.6f, 0.3f, 0.9f)); \r
- diagnostics::register_graph(graph_);\r
- \r
- try\r
- {\r
- video_decoder_.reset(new video_decoder(input_.context()));\r
- CASPAR_LOG(info) << print() << L" " << video_decoder_->print();\r
- }\r
- catch(averror_stream_not_found&)\r
- {\r
- //CASPAR_LOG(warning) << print() << " No video-stream found. Running without video."; \r
- }\r
- catch(...)\r
- {\r
- CASPAR_LOG_CURRENT_EXCEPTION();\r
- CASPAR_LOG(warning) << print() << "Failed to open video-stream. Running without video."; \r
- }\r
-\r
- try\r
- {\r
- audio_decoder_.reset(new audio_decoder(input_.context(), frame_factory->get_video_format_desc()));\r
- CASPAR_LOG(info) << print() << L" " << audio_decoder_->print();\r
- }\r
- catch(averror_stream_not_found&)\r
- {\r
- //CASPAR_LOG(warning) << print() << " No audio-stream found. Running without audio."; \r
- }\r
- catch(...)\r
- {\r
- CASPAR_LOG_CURRENT_EXCEPTION();\r
- CASPAR_LOG(warning) << print() << " Failed to open audio-stream. Running without audio."; \r
- } \r
-\r
- if(!video_decoder_ && !audio_decoder_)\r
- BOOST_THROW_EXCEPTION(averror_stream_not_found() << msg_info("No streams found"));\r
-\r
- muxer_.reset(new frame_muxer(fps_, frame_factory, filter));\r
- }\r
-\r
- // frame_producer\r
- \r
- virtual safe_ptr<core::basic_frame> receive(int flags) override\r
- { \r
- frame_timer_.restart();\r
- \r
- for(int n = 0; n < 16 && frame_buffer_.size() < 2; ++n)\r
- try_decode_frame(flags);\r
- \r
- graph_->set_value("frame-time", frame_timer_.elapsed()*format_desc_.fps*0.5);\r
- \r
- if(frame_buffer_.empty() && input_.eof())\r
- return disable_audio(last_frame());\r
-\r
- if(frame_buffer_.empty())\r
- {\r
- graph_->set_tag("underflow"); \r
- return core::basic_frame::late(); \r
- }\r
- \r
- auto frame = frame_buffer_.front(); \r
- frame_buffer_.pop();\r
- \r
- ++frame_number_;\r
- file_frame_number_ = frame.second;\r
-\r
- graph_->set_text(print());\r
-\r
- return last_frame_ = frame.first;\r
- }\r
-\r
- virtual safe_ptr<core::basic_frame> last_frame() const override\r
- {\r
- return last_frame_;\r
- }\r
-\r
- virtual uint32_t nb_frames() const override\r
- {\r
- if(input_.loop())\r
- return std::numeric_limits<uint32_t>::max();\r
-\r
- uint32_t nb_frames = file_nb_frames();\r
-\r
- nb_frames = std::min(length_, nb_frames);\r
- nb_frames = muxer_->calc_nb_frames(nb_frames);\r
- \r
- return nb_frames > start_ ? nb_frames - start_ : 0;\r
- }\r
-\r
- uint32_t file_nb_frames() const\r
- {\r
- uint32_t file_nb_frames = 0;\r
- file_nb_frames = std::max(file_nb_frames, video_decoder_ ? video_decoder_->nb_frames() : 0);\r
- file_nb_frames = std::max(file_nb_frames, audio_decoder_ ? audio_decoder_->nb_frames() : 0);\r
- return file_nb_frames;\r
- }\r
- \r
- virtual boost::unique_future<std::wstring> call(const std::wstring& param) override\r
- {\r
- boost::promise<std::wstring> promise;\r
- promise.set_value(do_call(param));\r
- return promise.get_future();\r
- }\r
- \r
- virtual std::wstring print() const override\r
- {\r
- return L"ffmpeg[" + boost::filesystem::path(filename_).filename().wstring() + L"|" \r
- + print_mode() + L"|" \r
- + boost::lexical_cast<std::wstring>(file_frame_number_) + L"/" + boost::lexical_cast<std::wstring>(file_nb_frames()) + L"]";\r
- }\r
-\r
- boost::property_tree::wptree info() const override\r
- {\r
- boost::property_tree::wptree info;\r
- info.add(L"type", L"ffmpeg-producer");\r
- info.add(L"filename", filename_);\r
- info.add(L"width", video_decoder_ ? video_decoder_->width() : 0);\r
- info.add(L"height", video_decoder_ ? video_decoder_->height() : 0);\r
- info.add(L"progressive", video_decoder_ ? video_decoder_->is_progressive() : false);\r
- info.add(L"fps", fps_);\r
- info.add(L"loop", input_.loop());\r
- info.add(L"frame-number", frame_number_);\r
- auto nb_frames2 = nb_frames();\r
- info.add(L"nb-frames", nb_frames2 == std::numeric_limits<int64_t>::max() ? -1 : nb_frames2);\r
- info.add(L"file-frame-number", file_frame_number_);\r
- info.add(L"file-nb-frames", file_nb_frames());\r
- return info;\r
- }\r
-\r
- // ffmpeg_producer\r
-\r
- std::wstring print_mode() const\r
- {\r
- return video_decoder_ ? ffmpeg::print_mode(video_decoder_->width(), video_decoder_->height(), fps_, !video_decoder_->is_progressive()) : L"";\r
- }\r
- \r
- std::wstring do_call(const std::wstring& param)\r
- {\r
- static const boost::wregex loop_exp(L"LOOP\\s*(?<VALUE>\\d?)?", boost::regex::icase);\r
- static const boost::wregex seek_exp(L"SEEK\\s+(?<VALUE>\\d+)", boost::regex::icase);\r
- \r
- boost::wsmatch what;\r
- if(boost::regex_match(param, what, loop_exp))\r
- {\r
- if(!what["VALUE"].str().empty())\r
- input_.loop(boost::lexical_cast<bool>(what["VALUE"].str()));\r
- return boost::lexical_cast<std::wstring>(input_.loop());\r
- }\r
- if(boost::regex_match(param, what, seek_exp))\r
- {\r
- input_.seek(boost::lexical_cast<uint32_t>(what["VALUE"].str()));\r
- return L"";\r
- }\r
-\r
- BOOST_THROW_EXCEPTION(invalid_argument());\r
- }\r
-\r
- void try_decode_frame(int flags)\r
- {\r
- std::shared_ptr<AVPacket> pkt;\r
-\r
- for(int n = 0; n < 32 && ((video_decoder_ && !video_decoder_->ready()) || (audio_decoder_ && !audio_decoder_->ready())) && input_.try_pop(pkt); ++n)\r
- {\r
- if(video_decoder_)\r
- video_decoder_->push(pkt);\r
- if(audio_decoder_)\r
- audio_decoder_->push(pkt);\r
- }\r
- \r
- std::shared_ptr<AVFrame> video;\r
- std::shared_ptr<core::audio_buffer> audio;\r
-\r
- tbb::parallel_invoke(\r
- [&]\r
- {\r
- if(!muxer_->video_ready() && video_decoder_) \r
- video = video_decoder_->poll(); \r
- },\r
- [&]\r
- { \r
- if(!muxer_->audio_ready() && audio_decoder_) \r
- audio = audio_decoder_->poll(); \r
- });\r
- \r
- muxer_->push(video, flags);\r
- muxer_->push(audio);\r
-\r
- if(!audio_decoder_)\r
- {\r
- if(video == flush_video())\r
- muxer_->push(flush_audio());\r
- else if(!muxer_->audio_ready())\r
- muxer_->push(empty_audio());\r
- }\r
-\r
- if(!video_decoder_)\r
- {\r
- if(audio == flush_audio())\r
- muxer_->push(flush_video(), 0);\r
- else if(!muxer_->video_ready())\r
- muxer_->push(empty_video(), 0);\r
- }\r
- \r
- uint32_t file_frame_number = 0;\r
- file_frame_number = std::max(file_frame_number, video_decoder_ ? video_decoder_->file_frame_number() : 0);\r
- //file_frame_number = std::max(file_frame_number, audio_decoder_ ? audio_decoder_->file_frame_number() : 0);\r
-\r
- for(auto frame = muxer_->poll(); frame; frame = muxer_->poll())\r
- frame_buffer_.push(std::make_pair(make_safe_ptr(frame), file_frame_number));\r
- }\r
-};\r
-\r
-safe_ptr<core::frame_producer> create_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::vector<std::wstring>& params)\r
-{ \r
- auto filename = probe_stem(env::media_folder() + L"\\" + params.at(0));\r
-\r
- if(filename.empty())\r
- return core::frame_producer::empty();\r
- \r
- auto loop = boost::range::find(params, L"LOOP") != params.end();\r
- auto start = get_param(L"SEEK", params, static_cast<uint32_t>(0));\r
- auto length = get_param(L"LENGTH", params, std::numeric_limits<uint32_t>::max());\r
- auto filter_str = get_param(L"FILTER", params, L""); \r
- \r
- boost::replace_all(filter_str, L"DEINTERLACE", L"YADIF=0:-1");\r
- boost::replace_all(filter_str, L"DEINTERLACE_BOB", L"YADIF=1:-1");\r
- \r
- return create_producer_destroy_proxy(make_safe<ffmpeg_producer>(frame_factory, filename, filter_str, loop, start, length));\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 "ffmpeg_producer.h"
+
+#include "../ffmpeg_error.h"
+
+#include "muxer/frame_muxer.h"
+#include "input/input.h"
+#include "util/util.h"
+#include "audio/audio_decoder.h"
+#include "video/video_decoder.h"
+
+#include <common/env.h>
+#include <common/log.h>
+#include <common/param.h>
+#include <common/diagnostics/graph.h>
+#include <common/future.h>
+
+#include <core/video_format.h>
+#include <core/producer/frame_producer.h>
+#include <core/frame/frame_factory.h>
+#include <core/frame/draw_frame.h>
+#include <core/frame/frame_transform.h>
+#include <core/monitor/monitor.h>
+
+#include <boost/algorithm/string.hpp>
+#include <common/assert.h>
+#include <boost/timer.hpp>
+#include <boost/filesystem.hpp>
+#include <boost/property_tree/ptree.hpp>
+#include <boost/regex.hpp>
+#include <boost/thread/future.hpp>
+
+#include <tbb/parallel_invoke.h>
+
+#include <limits>
+#include <memory>
+#include <queue>
+
+namespace caspar { namespace ffmpeg {
+
+std::wstring get_relative_or_original(
+ const std::wstring& filename,
+ const boost::filesystem::wpath& relative_to)
+{
+ boost::filesystem::wpath file(filename);
+ auto result = file.filename().wstring();
+
+ boost::filesystem::wpath current_path = file;
+
+ while (true)
+ {
+ current_path = current_path.parent_path();
+
+ if (boost::filesystem::equivalent(current_path, relative_to))
+ break;
+
+ if (current_path.empty())
+ return filename;
+
+ result = current_path.filename().wstring() + L"/" + result;
+ }
+
+ return result;
+}
+
+struct ffmpeg_producer : public core::frame_producer_base
+{
+ spl::shared_ptr<core::monitor::subject> monitor_subject_;
+ const std::wstring filename_;
+ const std::wstring path_relative_to_media_ = get_relative_or_original(filename_, env::media_folder());
+
+ const spl::shared_ptr<diagnostics::graph> graph_;
+
+ const spl::shared_ptr<core::frame_factory> frame_factory_;
+ const core::video_format_desc format_desc_;
+
+ input input_;
+
+ const double fps_ = read_fps(input_.context(), format_desc_.fps);
+ const uint32_t start_;
+
+ std::unique_ptr<video_decoder> video_decoder_;
+ std::unique_ptr<audio_decoder> audio_decoder_;
+ frame_muxer muxer_;
+ core::constraints constraints_;
+
+ core::draw_frame last_frame_ = core::draw_frame::empty();
+
+ boost::optional<uint32_t> seek_target_;
+
+public:
+ explicit ffmpeg_producer(const spl::shared_ptr<core::frame_factory>& frame_factory,
+ const core::video_format_desc& format_desc,
+ const std::wstring& filename,
+ const std::wstring& filter,
+ bool loop,
+ uint32_t start,
+ uint32_t length)
+ : filename_(filename)
+ , frame_factory_(frame_factory)
+ , format_desc_(format_desc)
+ , input_(graph_, filename_, loop, start, length)
+ , fps_(read_fps(input_.context(), format_desc_.fps))
+ , muxer_(fps_, frame_factory, format_desc_, filter)
+ , start_(start)
+ {
+ graph_->set_color("frame-time", diagnostics::color(0.1f, 1.0f, 0.1f));
+ graph_->set_color("underflow", diagnostics::color(0.6f, 0.3f, 0.9f));
+ diagnostics::register_graph(graph_);
+
+
+ try
+ {
+ video_decoder_.reset(new video_decoder(input_));
+ video_decoder_->monitor_output().attach_parent(monitor_subject_);
+ constraints_.width.set(video_decoder_->width());
+ constraints_.height.set(video_decoder_->height());
+
+ CASPAR_LOG(info) << print() << L" " << video_decoder_->print();
+ }
+ catch(averror_stream_not_found&)
+ {
+ //CASPAR_LOG(warning) << print() << " No video-stream found. Running without video.";
+ }
+ catch(...)
+ {
+ CASPAR_LOG_CURRENT_EXCEPTION();
+ CASPAR_LOG(warning) << print() << "Failed to open video-stream. Running without video.";
+ }
+
+ try
+ {
+ audio_decoder_ .reset(new audio_decoder(input_, format_desc_));
+ audio_decoder_->monitor_output().attach_parent(monitor_subject_);
+
+ CASPAR_LOG(info) << print() << L" " << audio_decoder_->print();
+ }
+ catch(averror_stream_not_found&)
+ {
+ //CASPAR_LOG(warning) << print() << " No audio-stream found. Running without audio.";
+ }
+ catch(...)
+ {
+ CASPAR_LOG_CURRENT_EXCEPTION();
+ CASPAR_LOG(warning) << print() << " Failed to open audio-stream. Running without audio.";
+ }
+
+ decode_next_frame();
+
+ CASPAR_LOG(info) << print() << L" Initialized";
+ }
+
+ // frame_producer
+
+ core::draw_frame receive_impl() override
+ {
+ auto frame = core::draw_frame::late();
+
+ boost::timer frame_timer;
+
+ end_seek();
+
+ decode_next_frame();
+
+ if(!muxer_.empty())
+ {
+ last_frame_ = frame = std::move(muxer_.front());
+ muxer_.pop();
+ }
+ else
+ graph_->set_tag("underflow");
+
+ graph_->set_value("frame-time", frame_timer.elapsed()*format_desc_.fps*0.5);
+ *monitor_subject_
+ << core::monitor::message("/profiler/time") % frame_timer.elapsed() % (1.0/format_desc_.fps);
+ *monitor_subject_
+ << core::monitor::message("/file/time") % (file_frame_number()/fps_)
+ % (file_nb_frames()/fps_)
+ << core::monitor::message("/file/frame") % static_cast<int32_t>(file_frame_number())
+ % static_cast<int32_t>(file_nb_frames())
+ << core::monitor::message("/file/fps") % fps_
+ << core::monitor::message("/file/path") % path_relative_to_media_
+ << core::monitor::message("/loop") % input_.loop();
+
+ return frame;
+ }
+
+ core::draw_frame last_frame() override
+ {
+ end_seek();
+ return core::draw_frame::still(last_frame_);
+ }
+
+ core::constraints& pixel_constraints() override
+ {
+ return constraints_;
+ }
+
+ uint32_t nb_frames() const override
+ {
+ if(input_.loop())
+ return std::numeric_limits<uint32_t>::max();
+
+ uint32_t nb_frames = file_nb_frames();
+
+ nb_frames = std::min(input_.length(), nb_frames);
+ nb_frames = muxer_.calc_nb_frames(nb_frames);
+
+ return nb_frames > start_ ? nb_frames - start_ : 0;
+ }
+
+ uint32_t file_nb_frames() const
+ {
+ uint32_t file_nb_frames = 0;
+ file_nb_frames = std::max(file_nb_frames, video_decoder_ ? video_decoder_->nb_frames() : 0);
+ file_nb_frames = std::max(file_nb_frames, audio_decoder_ ? audio_decoder_->nb_frames() : 0);
+ return file_nb_frames;
+ }
+
+ uint32_t file_frame_number() const
+ {
+ return video_decoder_ ? video_decoder_->file_frame_number() : 0;
+ }
+
+ std::future<std::wstring> call(const std::vector<std::wstring>& params) override
+ {
+ static const boost::wregex loop_exp(LR"(LOOP\s*(?<VALUE>\d?)?)", boost::regex::icase);
+ static const boost::wregex seek_exp(LR"(SEEK\s+(?<VALUE>\d+))", boost::regex::icase);
+ static const boost::wregex length_exp(LR"(LENGTH\s+(?<VALUE>\d+)?)", boost::regex::icase);
+ static const boost::wregex start_exp(LR"(START\\s+(?<VALUE>\\d+)?)", boost::regex::icase);
+
+ auto param = boost::algorithm::join(params, L" ");
+
+ std::wstring result;
+
+ boost::wsmatch what;
+ if(boost::regex_match(param, what, loop_exp))
+ {
+ auto value = what["VALUE"].str();
+ if(!value.empty())
+ input_.loop(boost::lexical_cast<bool>(value));
+ result = boost::lexical_cast<std::wstring>(loop());
+ }
+ else if(boost::regex_match(param, what, seek_exp))
+ {
+ auto value = what["VALUE"].str();
+ seek(boost::lexical_cast<uint32_t>(value));
+ }
+ else if(boost::regex_match(param, what, length_exp))
+ {
+ auto value = what["VALUE"].str();
+ if(!value.empty())
+ length(boost::lexical_cast<uint32_t>(value));
+ result = boost::lexical_cast<std::wstring>(length());
+ }
+ else if(boost::regex_match(param, what, start_exp))
+ {
+ auto value = what["VALUE"].str();
+ if(!value.empty())
+ start(boost::lexical_cast<uint32_t>(value));
+ result = boost::lexical_cast<std::wstring>(start());
+ }
+ else
+ CASPAR_THROW_EXCEPTION(invalid_argument());
+
+ return make_ready_future(std::move(result));
+ }
+
+ std::wstring print() const override
+ {
+ return L"ffmpeg[" + boost::filesystem::path(filename_).filename().wstring() + L"|"
+ + print_mode() + L"|"
+ + boost::lexical_cast<std::wstring>(file_frame_number()) + L"/" + boost::lexical_cast<std::wstring>(file_nb_frames()) + L"]";
+ }
+
+ std::wstring name() const override
+ {
+ return L"ffmpeg";
+ }
+
+ boost::property_tree::wptree info() const override
+ {
+ boost::property_tree::wptree info;
+ info.add(L"type", L"ffmpeg");
+ info.add(L"filename", filename_);
+ info.add(L"width", video_decoder_ ? video_decoder_->width() : 0);
+ info.add(L"height", video_decoder_ ? video_decoder_->height() : 0);
+ info.add(L"progressive", video_decoder_ ? video_decoder_->is_progressive() : 0);
+ info.add(L"fps", fps_);
+ info.add(L"loop", input_.loop());
+ info.add(L"frame-number", frame_number());
+ auto nb_frames2 = nb_frames();
+ info.add(L"nb-frames", nb_frames2 == std::numeric_limits<int64_t>::max() ? -1 : nb_frames2);
+ info.add(L"file-frame-number", file_frame_number());
+ info.add(L"file-nb-frames", file_nb_frames());
+ return info;
+ }
+
+ core::monitor::subject& monitor_output()
+ {
+ return *monitor_subject_;
+ }
+
+ // ffmpeg_producer
+
+ void end_seek()
+ {
+ for(int n = 0; n < 8 && (last_frame_ == core::draw_frame::empty() || (seek_target_ && file_frame_number() != *seek_target_+2)); ++n)
+ {
+ decode_next_frame();
+ if(!muxer_.empty())
+ {
+ last_frame_ = muxer_.front();
+ seek_target_.reset();
+ }
+ }
+ }
+
+ void loop(bool value)
+ {
+ input_.loop(value);
+ }
+
+ bool loop() const
+ {
+ return input_.loop();
+ }
+
+ void length(uint32_t value)
+ {
+ input_.length(value);
+ }
+
+ uint32_t length()
+ {
+ return input_.length();
+ }
+
+ void start(uint32_t value)
+ {
+ input_.start(value);
+ }
+
+ uint32_t start()
+ {
+ return input_.start();
+ }
+
+ void seek(uint32_t target)
+ {
+ seek_target_ = std::min(target, file_nb_frames());
+
+ input_.seek(*seek_target_);
+ muxer_.clear();
+ }
+
+ std::wstring print_mode() const
+ {
+ return ffmpeg::print_mode(video_decoder_ ? video_decoder_->width() : 0,
+ video_decoder_ ? video_decoder_->height() : 0,
+ fps_,
+ video_decoder_ ? !video_decoder_->is_progressive() : false);
+ }
+
+ void decode_next_frame()
+ {
+ for(int n = 0; n < 8 && muxer_.empty(); ++n)
+ {
+ if(!muxer_.video_ready())
+ muxer_.push_video(video_decoder_ ? (*video_decoder_)() : create_frame());
+ if(!muxer_.audio_ready())
+ muxer_.push_audio(audio_decoder_ ? (*audio_decoder_)() : create_frame());
+ }
+ graph_->set_text(print());
+ }
+};
+
+spl::shared_ptr<core::frame_producer> create_producer(const spl::shared_ptr<core::frame_factory>& frame_factory, const core::video_format_desc& format_desc, const std::vector<std::wstring>& params)
+{
+ auto filename = probe_stem(env::media_folder() + L"/" + params.at(0));
+
+ if(filename.empty())
+ return core::frame_producer::empty();
+
+ bool loop = contains_param(L"LOOP", params);
+ auto start = get_param(L"START", params, get_param(L"SEEK", params, static_cast<uint32_t>(0)));
+ auto length = get_param(L"LENGTH", params, std::numeric_limits<uint32_t>::max());
+ auto filter_str = get_param(L"FILTER", params, L"");
+
+ return create_destroy_proxy(spl::make_shared_ptr(std::make_shared<ffmpeg_producer>(frame_factory, format_desc, filename, filter_str, loop, start, length)));
+}
+
+}}
projects / casparcg / blobdiff