/*
- Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2021 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic 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 2 of the License, or
(at your option) any later version.
- This program is distributed in the hope that it will be useful,
+ DCP-o-matic 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 this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
+
#ifndef DCPOMATIC_FFMPEG_H
#define DCPOMATIC_FFMPEG_H
+
#include "file_group.h"
#include "ffmpeg_subtitle_period.h"
+#include <dcp/warnings.h>
+LIBDCP_DISABLE_WARNINGS
extern "C" {
#include <libavcodec/avcodec.h>
}
-#include <boost/shared_ptr.hpp>
+LIBDCP_ENABLE_WARNINGS
#include <boost/thread/mutex.hpp>
+
struct AVFormatContext;
struct AVFrame;
+struct AVStream;
struct AVIOContext;
class FFmpegContent;
class FFmpegAudioStream;
class Log;
+
class FFmpeg
{
public:
- FFmpeg (boost::shared_ptr<const FFmpegContent>);
+ explicit FFmpeg (std::shared_ptr<const FFmpegContent>);
virtual ~FFmpeg ();
- boost::shared_ptr<const FFmpegContent> ffmpeg_content () const {
+ std::shared_ptr<const FFmpegContent> ffmpeg_content () const {
return _ffmpeg_content;
}
protected:
AVCodecContext* video_codec_context () const;
AVCodecContext* subtitle_codec_context () const;
- ContentTime pts_offset (
- std::vector<boost::shared_ptr<FFmpegAudioStream> > audio_streams, boost::optional<ContentTime> first_video, double video_frame_rate
+ dcpomatic::ContentTime pts_offset (
+ std::vector<std::shared_ptr<FFmpegAudioStream>> audio_streams, boost::optional<dcpomatic::ContentTime> first_video, double video_frame_rate
) const;
- static FFmpegSubtitlePeriod subtitle_period (AVSubtitle const & sub);
- static std::string subtitle_id (AVSubtitle const & sub);
+ static FFmpegSubtitlePeriod subtitle_period (AVPacket const* packet, AVStream const* stream, AVSubtitle const & sub);
- boost::shared_ptr<const FFmpegContent> _ffmpeg_content;
+ std::shared_ptr<const FFmpegContent> _ffmpeg_content;
- uint8_t* _avio_buffer;
- int _avio_buffer_size;
- AVIOContext* _avio_context;
+ uint8_t* _avio_buffer = nullptr;
+ int _avio_buffer_size = 4096;
+ AVIOContext* _avio_context = nullptr;
FileGroup _file_group;
- AVFormatContext* _format_context;
- AVPacket _packet;
- AVFrame* _frame;
+ AVFormatContext* _format_context = nullptr;
+ std::vector<AVCodecContext*> _codec_context;
+ /** AVFrame used for decoding video */
+ AVFrame* _video_frame = nullptr;
/** Index of video stream within AVFormatContext */
- int _video_stream;
+ boost::optional<int> _video_stream;
+
+ AVFrame* audio_frame (std::shared_ptr<const FFmpegAudioStream> stream);
/* It would appear (though not completely verified) that one must have
a mutex around calls to avcodec_open* and avcodec_close... and here
void setup_decoders ();
static void ffmpeg_log_callback (void* ptr, int level, const char* fmt, va_list vl);
- static boost::weak_ptr<Log> _ffmpeg_log;
+ static std::weak_ptr<Log> _ffmpeg_log;
+
+ /** AVFrames used for decoding audio streams; accessed with audio_frame() */
+ std::map<std::shared_ptr<const FFmpegAudioStream>, AVFrame*> _audio_frame;
};
+
#endif