git.sesse.net Git - casparcg/blob - modules/ffmpeg/ffmpeg_pipeline_backend.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 #include "StdAfx.h"
  23
  24 #include <common/diagnostics/graph.h>
  25 #include <common/array.h>
  26
  27 #include <core/frame/draw_frame.h>
  28
  29 #include <boost/rational.hpp>
  30
  31 namespace caspar { namespace ffmpeg {
  32
  33 struct ffmpeg_pipeline_backend
  34 {
  35         virtual ~ffmpeg_pipeline_backend() { }
  36
  37         virtual void                                    graph(spl::shared_ptr<caspar::diagnostics::graph> g) = 0;
  38
  39         virtual void                                    from_file(std::string filename) = 0;
  40         virtual void                                    from_memory_only_audio(int num_channels, int samplerate) = 0;
  41         virtual void                                    from_memory_only_video(int width, int height, boost::rational<int> framerate) = 0;
  42         virtual void                                    from_memory(int num_channels, int samplerate, int width, int height, boost::rational<int> framerate) = 0;
  43
  44         virtual void                                    start_frame(std::uint32_t frame) = 0;
  45         virtual std::uint32_t                   start_frame() const = 0;
  46         virtual void                                    length(std::uint32_t frames) = 0;
  47         virtual std::uint32_t                   length() const = 0;
  48         virtual void                                    seek(std::uint32_t frame) = 0;
  49         virtual void                                    loop(bool value) = 0;
  50         virtual bool                                    loop() const = 0;
  51         virtual std::string                             source_filename() const = 0;
  52
  53         virtual void                                    vfilter(std::string filter) = 0;
  54         virtual void                                    afilter(std::string filter) = 0;
  55         virtual int                                             width() const = 0;
  56         virtual int                                             height() const = 0;
  57         virtual boost::rational<int>    framerate() const = 0;
  58         virtual bool                                    progressive() const = 0;
  59         virtual std::uint32_t                   last_frame() const = 0;
  60
  61         virtual void                                    to_memory(spl::shared_ptr<core::frame_factory> factory, core::video_format_desc format) = 0;
  62         virtual void                                    to_file(std::string filename) = 0;
  63         virtual void                                    vcodec(std::string codec) = 0;
  64         virtual void                                    acodec(std::string codec) = 0;
  65         virtual void                                    format(std::string fmt) = 0;
  66
  67         virtual void                                    start() = 0;
  68         virtual bool                                    try_push_audio(caspar::array<const std::int32_t> data) = 0;
  69         virtual bool                                    try_push_video(caspar::array<const std::uint8_t> data) = 0;
  70         virtual core::draw_frame                try_pop_frame() = 0;
  71         virtual bool                                    started() const = 0;
  72         virtual void                                    stop() = 0;
  73 };
  74
  75 }}