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authorCarl Hetherington <cth@carlh.net>2012-07-15 00:14:28 +0100
committerCarl Hetherington <cth@carlh.net>2012-07-15 00:14:28 +0100
commitbb767c7e338414beee132af3e96829c1448e214b (patch)
treebec2858dcc7225a9bcc2acd8170c25508f6df6cb /src/lib/ffmpeg_decoder.h
parent66c9be6bdb1361e5681e094a0c8170d268aa9518 (diff)
Move things round a bit.
Diffstat (limited to 'src/lib/ffmpeg_decoder.h')
-rw-r--r--src/lib/ffmpeg_decoder.h90
1 files changed, 90 insertions, 0 deletions
diff --git a/src/lib/ffmpeg_decoder.h b/src/lib/ffmpeg_decoder.h
new file mode 100644
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+++ b/src/lib/ffmpeg_decoder.h
@@ -0,0 +1,90 @@
+/*
+ Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+
+ This program 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,
+ 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.
+
+*/
+
+/** @file src/ffmpeg_decoder.h
+ * @brief A decoder using FFmpeg to decode content.
+ */
+
+#include <vector>
+#include <string>
+#include <stdint.h>
+#include <boost/shared_ptr.hpp>
+extern "C" {
+#include <libavcodec/avcodec.h>
+#include <libpostproc/postprocess.h>
+}
+#include "util.h"
+#include "decoder.h"
+
+struct AVFilterGraph;
+struct AVCodecContext;
+struct AVFilterContext;
+struct AVFormatContext;
+struct AVFrame;
+struct AVBufferContext;
+struct AVCodec;
+class Job;
+class FilmState;
+class Options;
+class Image;
+class Log;
+
+/** @class FFmpegDecoder
+ * @brief A decoder using FFmpeg to decode content.
+ */
+class FFmpegDecoder : public Decoder
+{
+public:
+ FFmpegDecoder (boost::shared_ptr<const FilmState>, boost::shared_ptr<const Options>, Job *, Log *, bool, bool);
+ ~FFmpegDecoder ();
+
+ /* Methods to query our input video */
+ int length_in_frames () const;
+ int decoding_frames () const;
+ float frames_per_second () const;
+ Size native_size () const;
+ int audio_channels () const;
+ int audio_sample_rate () const;
+ AVSampleFormat audio_sample_format () const;
+
+private:
+
+ bool do_pass ();
+ PixelFormat pixel_format () const;
+ int time_base_numerator () const;
+ int time_base_denominator () const;
+ int sample_aspect_ratio_numerator () const;
+ int sample_aspect_ratio_denominator () const;
+
+ void setup_general ();
+ void setup_video ();
+ void setup_audio ();
+
+ AVFormatContext* _format_context;
+ int _video_stream;
+ int _audio_stream;
+ AVFrame* _frame;
+
+ AVCodecContext* _video_codec_context;
+ AVCodec* _video_codec;
+ AVCodecContext* _audio_codec_context;
+ AVCodec* _audio_codec;
+
+ AVPacket _packet;
+};