#include <string>
#include <stdint.h>
#include <boost/shared_ptr.hpp>
-#include <sigc++/sigc++.h>
+#include <boost/signals2.hpp>
#include "util.h"
#include "stream.h"
+#include "video_source.h"
+#include "audio_source.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.
* (by calling ::go), and they emit signals when video or audio data is ready for something else
* to process.
*/
-class Decoder
+class Decoder : public VideoSource, public AudioSource
{
public:
- Decoder (boost::shared_ptr<const FilmState>, boost::shared_ptr<const Options>, Job *, Log *, bool, bool);
- virtual ~Decoder ();
+ Decoder (boost::shared_ptr<Film>, boost::shared_ptr<const Options>, Job *);
+ 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 */
virtual Size native_size () const = 0;
- /** @return number of audio channels */
- virtual int audio_channels () const = 0;
- /** @return audio sampling rate in Hz */
- virtual int audio_sample_rate () const = 0;
- /** @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;
-
- void process_begin ();
- bool pass ();
- void process_end ();
+
+ 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;
+
+ virtual bool pass () = 0;
void go ();
- /** @return the index of the last video frame to be processed */
- int last_video_frame () const {
+ SourceFrame video_frame () const {
return _video_frame;
}
- virtual std::vector<Stream> audio_streams () const {
- return std::vector<Stream> ();
+ virtual void set_audio_stream (boost::optional<AudioStream>);
+ virtual void set_subtitle_stream (boost::optional<SubtitleStream>);
+
+ boost::optional<AudioStream> audio_stream () const {
+ return _audio_stream;
}
-
- virtual std::vector<Stream> subtitle_streams () const {
- return std::vector<Stream> ();
+
+ boost::optional<SubtitleStream> subtitle_stream () const {
+ return _subtitle_stream;
}
- virtual void set_audio_stream (Stream s) {}
- virtual void set_subtitle_stream (Stream s) {}
-
- /** Emitted when a video frame is ready.
- * First parameter is the frame.
- * 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, boost::shared_ptr<Subtitle> > Video;
-
- /** Emitted when some audio data is ready.
- * First parameter is an array of pointers to deinterleaved, floating point sample data for each channel.
- * Second parameter is the size of the data in frames (ie samples on each channel).
- */
- sigc::signal<void, float**, int> Audio;
+ std::vector<AudioStream> audio_streams () const {
+ return _audio_streams;
+ }
+ std::vector<SubtitleStream> subtitle_streams () const {
+ return _subtitle_streams;
+ }
+
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 emit_video (boost::shared_ptr<Image>);
+ void emit_subtitle (boost::shared_ptr<TimedSubtitle>);
+ void repeat_last_video ();
- /** our FilmState */
- boost::shared_ptr<const FilmState> _fs;
+ /** 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;
+ boost::optional<AudioStream> _audio_stream;
+ boost::optional<SubtitleStream> _subtitle_stream;
- /** 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);
+ std::vector<AudioStream> _audio_streams;
+ std::vector<SubtitleStream> _subtitle_streams;
- /** last video frame to be processed */
- int _video_frame;
-
- AVFilterContext* _buffer_src_context;
- AVFilterContext* _buffer_sink_context;
-
- bool _have_setup_video_filters;
- DelayLine* _delay_line;
- int _delay_in_bytes;
+private:
+ void emit_video (boost::shared_ptr<Image>, boost::shared_ptr<Subtitle>);
- /* Number of audio frames that we have pushed to the encoder
- (at the DCP sample rate).
- */
- int64_t _audio_frames_processed;
+ SourceFrame _video_frame;
boost::shared_ptr<TimedSubtitle> _timed_subtitle;
+
+ boost::shared_ptr<Image> _last_image;
+ boost::shared_ptr<Subtitle> _last_subtitle;
};
#endif
projects / dcpomatic.git / blobdiff