#include <string>
#include <stdint.h>
#include <boost/shared_ptr.hpp>
+#include <boost/optional.hpp>
+#include <boost/thread/mutex.hpp>
extern "C" {
#include <libavcodec/avcodec.h>
#include <libpostproc/postprocess.h>
}
#include "util.h"
#include "decoder.h"
+#include "video_decoder.h"
+#include "audio_decoder.h"
+#include "film.h"
+#include "ffmpeg_content.h"
struct AVFilterGraph;
struct AVCodecContext;
struct AVFrame;
struct AVBufferContext;
struct AVCodec;
+struct AVStream;
class Job;
-class FilmState;
class Options;
class Image;
class Log;
/** @class FFmpegDecoder
* @brief A decoder using FFmpeg to decode content.
*/
-class FFmpegDecoder : public Decoder
+class FFmpegDecoder : public VideoDecoder, public AudioDecoder
{
public:
- FFmpegDecoder (boost::shared_ptr<const FilmState>, boost::shared_ptr<const Options>, Job *, Log *, bool, bool);
+ FFmpegDecoder (boost::shared_ptr<const Film>, boost::shared_ptr<const FFmpegContent>, bool video, bool audio, bool subtitles);
~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;
- int64_t audio_channel_layout () const;
-
-private:
-
- bool do_pass ();
- PixelFormat pixel_format () const;
+ float video_frame_rate () const;
+ libdcp::Size native_size () const;
+ ContentVideoFrame video_length () const;
int time_base_numerator () const;
int time_base_denominator () const;
int sample_aspect_ratio_numerator () const;
int sample_aspect_ratio_denominator () const;
- void overlay (boost::shared_ptr<Image> image) const;
+
+ std::vector<FFmpegSubtitleStream> subtitle_streams () const {
+ return _subtitle_streams;
+ }
+
+ std::vector<FFmpegAudioStream> audio_streams () const {
+ return _audio_streams;
+ }
+
+ bool seek (double);
+ bool seek_forward ();
+ bool seek_back ();
+ bool pass ();
+
+private:
+
+ /* No copy construction */
+ FFmpegDecoder (FFmpegDecoder const &);
+ FFmpegDecoder& operator= (FFmpegDecoder const &);
+
+ PixelFormat pixel_format () const;
+ AVSampleFormat audio_sample_format () const;
+ int bytes_per_audio_sample () const;
+ bool do_seek (double, bool, bool);
+
+ void filter_and_emit_video ();
void setup_general ();
void setup_video ();
void setup_audio ();
void setup_subtitle ();
+ void decode_audio_packet ();
+
void maybe_add_subtitle ();
+ boost::shared_ptr<AudioBuffers> deinterleave_audio (uint8_t** data, int size);
+
+ void film_changed (Film::Property);
+
+ std::string stream_name (AVStream* s) const;
+
+ boost::shared_ptr<const FFmpegContent> _ffmpeg_content;
AVFormatContext* _format_context;
int _video_stream;
- int _audio_stream; ///< may be < 0 if there is no audio
- int _subtitle_stream; ///< may be < 0 if there is no subtitle
- AVFrame* _frame;
+ AVFrame* _frame;
+
AVCodecContext* _video_codec_context;
AVCodec* _video_codec;
AVCodecContext* _audio_codec_context; ///< may be 0 if there is no audio
AVCodec* _subtitle_codec; ///< may be 0 if there is no subtitle
AVPacket _packet;
- AVSubtitle _subtitle;
- bool _have_subtitle;
+
+ std::list<boost::shared_ptr<FilterGraph> > _filter_graphs;
+ boost::mutex _filter_graphs_mutex;
+
+ std::vector<FFmpegSubtitleStream> _subtitle_streams;
+ std::vector<FFmpegAudioStream> _audio_streams;
+
+ bool _decode_video;
+ bool _decode_audio;
+ bool _decode_subtitles;
+
+ /* It would appear (though not completely verified) that one must have
+ a mutex around calls to avcodec_open* and avcodec_close... and here
+ it is.
+ */
+ static boost::mutex _mutex;
};