2 * copyright (c) 2010 Sveriges Television AB <info@casparcg.com>
\r
4 * This file is part of CasparCG.
\r
6 * CasparCG is free software: you can redistribute it and/or modify
\r
7 * it under the terms of the GNU General Public License as published by
\r
8 * the Free Software Foundation, either version 3 of the License, or
\r
9 * (at your option) any later version.
\r
11 * CasparCG is distributed in the hope that it will be useful,
\r
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
\r
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
\r
14 * GNU General Public License for more details.
\r
16 * You should have received a copy of the GNU General Public License
\r
17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
\r
20 #include "../stdafx.h"
\r
22 #include "ffmpeg_producer.h"
\r
24 #include "../ffmpeg_error.h"
\r
26 #include "muxer/frame_muxer.h"
\r
27 #include "input/input.h"
\r
28 #include "util/util.h"
\r
29 #include "audio/audio_decoder.h"
\r
30 #include "video/video_decoder.h"
\r
32 #include <common/env.h>
\r
33 #include <common/utility/assert.h>
\r
34 #include <common/diagnostics/graph.h>
\r
36 #include <core/video_format.h>
\r
37 #include <core/producer/frame_producer.h>
\r
38 #include <core/producer/frame/frame_factory.h>
\r
39 #include <core/producer/frame/basic_frame.h>
\r
40 #include <core/producer/frame/frame_transform.h>
\r
42 #include <boost/algorithm/string.hpp>
\r
43 #include <boost/assign.hpp>
\r
44 #include <boost/timer.hpp>
\r
45 #include <boost/foreach.hpp>
\r
46 #include <boost/filesystem.hpp>
\r
47 #include <boost/range/algorithm/find_if.hpp>
\r
48 #include <boost/range/algorithm/find.hpp>
\r
49 #include <boost/regex.hpp>
\r
51 #include <tbb/parallel_invoke.h>
\r
57 namespace caspar { namespace ffmpeg {
\r
59 struct ffmpeg_producer : public core::frame_producer
\r
61 const std::wstring filename_;
\r
63 const safe_ptr<diagnostics::graph> graph_;
\r
64 boost::timer frame_timer_;
\r
65 boost::timer video_timer_;
\r
66 boost::timer audio_timer_;
\r
68 const safe_ptr<core::frame_factory> frame_factory_;
\r
69 const core::video_format_desc format_desc_;
\r
72 std::unique_ptr<video_decoder> video_decoder_;
\r
73 std::unique_ptr<audio_decoder> audio_decoder_;
\r
74 std::unique_ptr<frame_muxer> muxer_;
\r
78 const size_t length_;
\r
80 safe_ptr<core::basic_frame> last_frame_;
\r
82 std::queue<safe_ptr<core::basic_frame>> frame_buffer_;
\r
84 int64_t frame_number_;
\r
85 int64_t file_frame_number_;;
\r
88 explicit ffmpeg_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::wstring& filename, const std::wstring& filter, bool loop, int start, size_t length)
\r
89 : filename_(filename)
\r
90 , frame_factory_(frame_factory)
\r
91 , format_desc_(frame_factory->get_video_format_desc())
\r
92 , input_(graph_, filename_, loop, start, length)
\r
96 , last_frame_(core::basic_frame::empty())
\r
99 graph_->add_guide("frame-time", 0.5);
\r
100 graph_->set_color("frame-time", diagnostics::color(0.1f, 1.0f, 0.1f));
\r
101 graph_->set_color("underflow", diagnostics::color(0.6f, 0.3f, 0.9f));
\r
102 diagnostics::register_graph(graph_);
\r
106 video_decoder_.reset(new video_decoder(input_.context()));
\r
108 catch(averror_stream_not_found&)
\r
110 CASPAR_LOG(warning) << "No video-stream found. Running without video.";
\r
114 CASPAR_LOG_CURRENT_EXCEPTION();
\r
115 CASPAR_LOG(warning) << "Failed to open video-stream. Running without video.";
\r
120 audio_decoder_.reset(new audio_decoder(input_.context(), frame_factory->get_video_format_desc()));
\r
122 catch(averror_stream_not_found&)
\r
124 CASPAR_LOG(warning) << "No audio-stream found. Running without audio.";
\r
128 CASPAR_LOG_CURRENT_EXCEPTION();
\r
129 CASPAR_LOG(warning) << "Failed to open audio-stream. Running without audio.";
\r
132 if(!video_decoder_ && !audio_decoder_)
\r
133 BOOST_THROW_EXCEPTION(averror_stream_not_found() << msg_info("No streams found"));
\r
135 muxer_.reset(new frame_muxer(video_decoder_ ? video_decoder_->fps() : frame_factory->get_video_format_desc().fps, frame_factory, filter));
\r
140 virtual safe_ptr<core::basic_frame> receive(int hints) override
\r
142 frame_timer_.restart();
\r
144 for(int n = 0; n < 16 && frame_buffer_.size() < 2; ++n)
\r
145 try_decode_frame(hints);
\r
147 graph_->update_value("frame-time", frame_timer_.elapsed()*format_desc_.fps*0.5);
\r
149 if(frame_buffer_.empty() && input_.eof())
\r
150 return last_frame();
\r
152 if(frame_buffer_.empty())
\r
154 graph_->add_tag("underflow");
\r
155 return core::basic_frame::late();
\r
158 last_frame_ = frame_buffer_.front();
\r
159 frame_buffer_.pop();
\r
161 graph_->set_text(print());
\r
164 return last_frame_;
\r
167 virtual safe_ptr<core::basic_frame> last_frame() const override
\r
169 return disable_audio(last_frame_);
\r
172 virtual int64_t nb_frames() const override
\r
175 return std::numeric_limits<int64_t>::max();
\r
177 auto nb_frames = file_nb_frames();
\r
179 nb_frames = std::min(static_cast<int64_t>(length_), nb_frames);
\r
180 nb_frames = muxer_->calc_nb_frames(nb_frames);
\r
182 return nb_frames - start_;
\r
185 virtual int64_t file_nb_frames() const override
\r
187 // This function estimates nb_frames until input has read all packets for one loop, at which point the count should be accurate.
\r
189 int64_t nb_frames = input_.nb_frames();
\r
190 if(input_.nb_loops() < 1) // input still hasn't counted all frames
\r
192 auto video_nb_frames = video_decoder_ ? video_decoder_->nb_frames() : std::numeric_limits<int64_t>::max();
\r
193 //auto audio_nb_frames = audio_decoder_ ? audio_decoder_->nb_frames() : std::numeric_limits<int64_t>::max();
\r
195 nb_frames = std::max(nb_frames, video_nb_frames);
\r
200 virtual int64_t frame_number() const override
\r
202 return frame_number_;
\r
205 virtual int64_t file_frame_number() const override
\r
207 return file_frame_number_;
\r
210 virtual boost::unique_future<std::wstring> call(const std::wstring& param) override
\r
212 boost::promise<std::wstring> promise;
\r
213 promise.set_value(do_call(param));
\r
214 return promise.get_future();
\r
217 virtual std::wstring print() const override
\r
221 return L"ffmpeg[" + boost::filesystem::wpath(filename_).filename() + L"|"
\r
222 + boost::lexical_cast<std::wstring>(video_decoder_->width()) + L"x" + boost::lexical_cast<std::wstring>(video_decoder_->height())
\r
223 + (video_decoder_->is_progressive() ? L"p" : L"i") + boost::lexical_cast<std::wstring>(video_decoder_->is_progressive() ? video_decoder_->fps() : 2.0 * video_decoder_->fps())
\r
224 + L"|" + boost::lexical_cast<std::wstring>(file_nb_frames()) + L"]";
\r
227 return L"ffmpeg[" + boost::filesystem::wpath(filename_).filename() + L"]";
\r
232 std::wstring do_call(const std::wstring& param)
\r
234 static const boost::wregex loop_exp(L"LOOP\\s*(?<VALUE>\\d?)", boost::regex::icase);
\r
235 static const boost::wregex seek_exp(L"SEEK\\s+(?<VALUE>\\d+)", boost::regex::icase);
\r
237 boost::wsmatch what;
\r
238 if(boost::regex_match(param, what, loop_exp))
\r
240 if(!what["VALUE"].str().empty())
\r
241 input_.loop(boost::lexical_cast<bool>(what["VALUE"].str()));
\r
242 return boost::lexical_cast<std::wstring>(input_.loop());
\r
244 if(boost::regex_match(param, what, seek_exp))
\r
246 input_.seek(boost::lexical_cast<int64_t>(what["VALUE"].str()));
\r
250 BOOST_THROW_EXCEPTION(invalid_argument());
\r
253 void try_decode_frame(int hints)
\r
255 std::shared_ptr<AVPacket> pkt;
\r
257 for(int n = 0; n < 32 && ((video_decoder_ && !video_decoder_->ready()) || (audio_decoder_ && !audio_decoder_->ready())) && input_.try_pop(pkt); ++n)
\r
260 video_decoder_->push(pkt);
\r
262 audio_decoder_->push(pkt);
\r
265 std::shared_ptr<AVFrame> video;
\r
266 std::shared_ptr<core::audio_buffer> audio;
\r
268 tbb::parallel_invoke(
\r
271 if(!muxer_->video_ready() && video_decoder_)
\r
273 video = video_decoder_->poll();
\r
274 file_frame_number_ = video_decoder_->file_frame_number();
\r
279 if(!muxer_->audio_ready() && audio_decoder_)
\r
281 audio = audio_decoder_->poll();
\r
282 file_frame_number_ = video_decoder_->file_frame_number();
\r
286 muxer_->push(video, hints);
\r
287 muxer_->push(audio);
\r
289 if(!audio_decoder_)
\r
291 if(video == flush_video())
\r
292 muxer_->push(flush_audio());
\r
293 else if(!muxer_->audio_ready())
\r
294 muxer_->push(empty_audio());
\r
297 if(!video_decoder_)
\r
299 if(audio == flush_audio())
\r
300 muxer_->push(flush_video(), 0);
\r
301 else if(!muxer_->video_ready())
\r
302 muxer_->push(empty_video(), 0);
\r
305 for(auto frame = muxer_->poll(); frame; frame = muxer_->poll())
\r
306 frame_buffer_.push(make_safe_ptr(frame));
\r
310 safe_ptr<core::frame_producer> create_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::vector<std::wstring>& params)
\r
312 static const std::vector<std::wstring> extensions = boost::assign::list_of
\r
313 (L"mpg")(L"mpeg")(L"m2v")(L"m4v")(L"mp3")(L"mp4")(L"mpga")
\r
321 (L"wmv")(L"wma")(L"wav")
\r
323 (L"ogg")(L"ogv")(L"oga")(L"ogx")
\r
324 (L"divx")(L"xvid");
\r
326 std::wstring filename = env::media_folder() + L"\\" + params[0];
\r
328 auto ext = boost::find_if(extensions, [&](const std::wstring& ex)
\r
330 return boost::filesystem::is_regular_file(boost::filesystem::wpath(filename + L"." + ex));
\r
333 if(ext == extensions.end())
\r
334 return core::frame_producer::empty();
\r
336 auto path = filename + L"." + *ext;
\r
337 auto loop = boost::range::find(params, L"LOOP") != params.end();
\r
338 auto start = core::get_param(L"SEEK", params, 0);
\r
339 auto length = core::get_param(L"LENGTH", params, std::numeric_limits<size_t>::max());
\r
340 auto filter_str = core::get_param<std::wstring>(L"FILTER", params, L"");
\r
342 boost::replace_all(filter_str, L"DEINTERLACE", L"YADIF=0:-1");
\r
343 boost::replace_all(filter_str, L"DEINTERLACE_BOB", L"YADIF=1:-1");
\r
345 return create_destroy_proxy(make_safe<ffmpeg_producer>(frame_factory, path, filter_str, loop, start, length));
\r