git.sesse.net Git - casparcg/blob - modules/ffmpeg/ffmpeg_pipeline.h

   1 /*
   2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
   3 *
   4 * This file is part of CasparCG (www.casparcg.com).
   5 *
   6 * CasparCG is free software: you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License as published by
   8 * the Free Software Foundation, either version 3 of the License, or
   9 * (at your option) any later version.
  10 *
  11 * CasparCG is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 * GNU General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU General Public License
  17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
  18 *
  19 * Author: Helge Norberg, helge.norberg@svt.se
  20 */
  21
  22 #pragma once
  23
  24 #include <common/memory.h>
  25 #include <common/array.h>
  26
  27 #include <core/fwd.h>
  28
  29 #include <boost/rational.hpp>
  30
  31 #include <string>
  32 #include <functional>
  33 #include <cstdint>
  34
  35 FORWARD2(caspar, diagnostics, class graph);
  36
  37 namespace caspar { namespace ffmpeg {
  38
  39 struct ffmpeg_pipeline_backend;
  40
  41 class ffmpeg_pipeline
  42 {
  43 public:
  44         ffmpeg_pipeline();
  45
  46         ffmpeg_pipeline                 graph(spl::shared_ptr<caspar::diagnostics::graph> g);
  47
  48         ffmpeg_pipeline                 from_file(std::string filename);
  49         ffmpeg_pipeline                 from_memory_only_audio(int num_channels, int samplerate);
  50         ffmpeg_pipeline                 from_memory_only_video(int width, int height, boost::rational<int> framerate);
  51         ffmpeg_pipeline                 from_memory(int num_channels, int samplerate, int width, int height, boost::rational<int> framerate);
  52
  53         ffmpeg_pipeline                 start_frame(std::uint32_t frame);
  54         std::uint32_t                   start_frame() const;
  55         ffmpeg_pipeline                 length(std::uint32_t frames);
  56         std::uint32_t                   length() const;
  57         ffmpeg_pipeline                 seek(std::uint32_t frame);
  58         ffmpeg_pipeline                 loop(bool value);
  59         bool                                    loop() const;
  60         std::string                             source_filename() const;
  61
  62         ffmpeg_pipeline                 vfilter(std::string filter);
  63         ffmpeg_pipeline                 afilter(std::string filter);
  64         int                                             width() const;
  65         int                                             height() const;
  66         boost::rational<int>    framerate() const;
  67         bool                                    progressive() const;
  68
  69         ffmpeg_pipeline                 to_memory(spl::shared_ptr<core::frame_factory> factory, core::video_format_desc format);
  70         ffmpeg_pipeline                 to_file(std::string filename);
  71         ffmpeg_pipeline                 vcodec(std::string codec);
  72         ffmpeg_pipeline                 acodec(std::string codec);
  73         ffmpeg_pipeline                 format(std::string fmt);
  74
  75         ffmpeg_pipeline                 start();
  76         bool                                    try_push_audio(caspar::array<const std::int32_t> data);
  77         bool                                    try_push_video(caspar::array<const std::uint8_t> data);
  78         core::draw_frame                try_pop_frame();
  79         std::uint32_t                   last_frame() const;
  80         bool                                    started() const;
  81         void                                    stop();
  82
  83 private:
  84         std::shared_ptr<ffmpeg_pipeline_backend> impl_;
  85 };
  86
  87 }}