#include <string>
#include <stdint.h>
#include <boost/shared_ptr.hpp>
-#include <sigc++/sigc++.h>
+#include <boost/signals2.hpp>
#include "util.h"
+#include "stream.h"
class Job;
-class FilmState;
class Options;
class Image;
class Log;
class DelayLine;
+class TimedSubtitle;
+class Subtitle;
+class Film;
+class FilterGraph;
/** @class Decoder.
* @brief Parent class for decoders of content.
class Decoder
{
public:
- Decoder (boost::shared_ptr<const FilmState>, boost::shared_ptr<const Options>, Job *, Log *, bool, bool);
+ Decoder (boost::shared_ptr<Film>, boost::shared_ptr<const Options>, Job *, bool);
virtual ~Decoder ();
/* Methods to query our input video */
- /** @return length in video frames */
- virtual int length_in_frames () const = 0;
/** @return video frames per second, or 0 if unknown */
virtual float frames_per_second () const = 0;
/** @return native size in pixels */
/** @return format of audio samples */
virtual AVSampleFormat audio_sample_format () const = 0;
virtual int64_t audio_channel_layout () const = 0;
+ virtual bool has_subtitles () const = 0;
+ virtual int time_base_numerator () const = 0;
+ virtual int time_base_denominator () const = 0;
+ virtual int sample_aspect_ratio_numerator () const = 0;
+ virtual int sample_aspect_ratio_denominator () const = 0;
+
void process_begin ();
- bool pass ();
+ virtual bool pass () = 0;
void process_end ();
void go ();
/** @return the index of the last video frame to be processed */
- int last_video_frame () const {
- return _video_frame;
+ SourceFrame video_frame_index () const {
+ return _video_frame_index;
+ }
+
+ virtual std::vector<AudioStream> audio_streams () const {
+ return std::vector<AudioStream> ();
}
- int decoding_frames () const;
+ virtual std::vector<SubtitleStream> subtitle_streams () const {
+ return std::vector<SubtitleStream> ();
+ }
/** Emitted when a video frame is ready.
- * First parameter is the frame.
+ * First parameter is the frame within the source.
* Second parameter is its index within the content.
+ * Third parameter is either 0 or a subtitle that should be on this frame.
*/
- sigc::signal<void, boost::shared_ptr<Image>, int> Video;
+ boost::signals2::signal<void (boost::shared_ptr<Image>, SourceFrame, boost::shared_ptr<Subtitle>)> Video;
+
+ /** Emitted when some audio data is ready */
+ boost::signals2::signal<void (boost::shared_ptr<AudioBuffers>)> Audio;
- /** Emitted when some audio data is ready.
- * First parameter is the interleaved sample data, format is given in the FilmState.
- * Second parameter is the size of the data.
- */
- sigc::signal<void, uint8_t *, int> Audio;
-
protected:
- /** perform a single pass at our content */
- virtual bool do_pass () = 0;
+
virtual PixelFormat pixel_format () const = 0;
- virtual int time_base_numerator () const = 0;
- virtual int time_base_denominator () const = 0;
- virtual int sample_aspect_ratio_numerator () const = 0;
- virtual int sample_aspect_ratio_denominator () const = 0;
void process_video (AVFrame *);
void process_audio (uint8_t *, int);
+ void process_subtitle (boost::shared_ptr<TimedSubtitle>);
+ void repeat_last_video ();
- /** our FilmState */
- boost::shared_ptr<const FilmState> _fs;
+ int bytes_per_audio_sample () const;
+
+ /** our Film */
+ boost::shared_ptr<Film> _film;
/** our options */
boost::shared_ptr<const Options> _opt;
/** associated Job, or 0 */
Job* _job;
- /** log that we can write to */
- Log* _log;
/** true to do the bare minimum of work; just run through the content. Useful for acquiring
* accurate frame counts as quickly as possible. This generates no video or audio output.
*/
bool _minimal;
- /** ignore_length Ignore the content's claimed length when computing progress */
- bool _ignore_length;
-
private:
- void setup_video_filters ();
+ void emit_audio (uint8_t* data, int size);
/** last video frame to be processed */
- int _video_frame;
+ SourceFrame _video_frame_index;
- AVFilterContext* _buffer_src_context;
- AVFilterContext* _buffer_sink_context;
+ std::list<boost::shared_ptr<FilterGraph> > _filter_graphs;
- bool _have_setup_video_filters;
DelayLine* _delay_line;
int _delay_in_bytes;
(at the DCP sample rate).
*/
int64_t _audio_frames_processed;
+
+ boost::shared_ptr<TimedSubtitle> _timed_subtitle;
+
+ boost::shared_ptr<Image> _last_image;
+ boost::shared_ptr<Subtitle> _last_subtitle;
};
#endif