class TimedSubtitle;
class Subtitle;
class Film;
+class FilterGraph;
/** @class Decoder.
* @brief Parent class for decoders of content.
class Decoder
{
public:
- Decoder (boost::shared_ptr<Film>, boost::shared_ptr<const Options>, Job *, bool, bool);
+ Decoder (boost::shared_ptr<Film>, boost::shared_ptr<const Options>, Job *, bool);
virtual ~Decoder ();
/* Methods to query our input video */
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 {
}
/** 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.
*/
- boost::signals2::signal<void (boost::shared_ptr<Image>, int, boost::shared_ptr<Subtitle>)> 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;
-
+
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 ();
int bytes_per_audio_sample () const;
*/
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;
int64_t _audio_frames_processed;
boost::shared_ptr<TimedSubtitle> _timed_subtitle;
+
+ boost::shared_ptr<Image> _last_image;
+ boost::shared_ptr<Subtitle> _last_subtitle;
};
#endif