X-Git-Url: https://main.carlh.net/gitweb/?p=dcpomatic.git;a=blobdiff_plain;f=src%2Flib%2Fffmpeg.h;h=59b2dedd5bd5d05998b67e1485f33ec33d2c2a3c;hp=8aaa54f84afab6973938e83eb138a60d6a2fa9c3;hb=b703142e8750c509174b4d964009aecf93f3d834;hpb=cb990adba9c57e5107ef2aa9716cf0a26c1df83d

diff --git a/src/lib/ffmpeg.h b/src/lib/ffmpeg.h
index 8aaa54f84..59b2dedd5 100644
--- a/src/lib/ffmpeg.h
+++ b/src/lib/ffmpeg.h
@@ -1,52 +1,56 @@
 /*
-    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 <vector>
-#include <boost/shared_ptr.hpp>
-#include <boost/thread/mutex.hpp>
+
+#include "file_group.h"
+#include "ffmpeg_subtitle_period.h"
+#include "warnings.h"
+DCPOMATIC_DISABLE_WARNINGS
 extern "C" {
 #include <libavcodec/avcodec.h>
 }
-#include "file_group.h"
+DCPOMATIC_ENABLE_WARNINGS
+#include <boost/thread/mutex.hpp>
+
 
-struct AVFilterGraph;
-struct AVCodecContext;
-struct AVFilterContext;
 struct AVFormatContext;
 struct AVFrame;
-struct AVBufferContext;
-struct AVCodec;
 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;
 	}
 
@@ -55,22 +59,29 @@ public:
 
 protected:
 	AVCodecContext* video_codec_context () const;
-	AVCodecContext* audio_codec_context () const;
 	AVCodecContext* subtitle_codec_context () const;
-	
-	boost::shared_ptr<const FFmpegContent> _ffmpeg_content;
+	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 (AVPacket const* packet, AVStream const* stream, AVSubtitle const & sub);
 
-	uint8_t* _avio_buffer;
-	int _avio_buffer_size;
-	AVIOContext* _avio_context;
+	std::shared_ptr<const FFmpegContent> _ffmpeg_content;
+
+	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
@@ -81,6 +92,13 @@ protected:
 private:
 	void setup_general ();
 	void setup_decoders ();
+
+	static void ffmpeg_log_callback (void* ptr, int level, const char* fmt, va_list vl);
+	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