SwfdecAudio

SwfdecAudio — object used for audio output

Synopsis




            SwfdecAudio;
void        swfdec_audio_render             (SwfdecAudio *audio,
                                             gint16 *dest,
                                             guint start_offset,
                                             guint n_samples);

Object Hierarchy


  GObject
   +----SwfdecAudio

Description

SwfdecAudio is the way audio output is provided by a SwfdecPlayer. See its documentation on how to access SwfdecAudio objects.

An audio object gives access to one audio stream played inside a player. You are responsible for outputting this data, swfdec does not try to do this for you.

Audio data is always provided in 16bit host-endian stereo. If the data was encoded into a different format originally, Swfdec will already have decoded it. The data is always referenced relative to the player. Sample 0 references the first sample to be played at the current position. If the player gets iterated, sample 0 changes. There is no way to access samples belonging to a previous state.

Details

SwfdecAudio

typedef struct _SwfdecAudio SwfdecAudio;

This object is used for audio output. It is an abstract class.

swfdec_audio_render ()

void        swfdec_audio_render             (SwfdecAudio *audio,
                                             gint16 *dest,
                                             guint start_offset,
                                             guint n_samples);

Renders the samples from audio into the area pointed to by dest. The data is added to dest, so you probably want to initialize dest to silence before calling this function.

audio : a SwfdecAudio
dest : memory area to render to
start_offset : offset in samples at which to start rendering. The offset is calculated relative to the last iteration, so the value set by swfdec_player_set_audio_advance() is ignored.
n_samples : amount of samples to render.

See Also

SwfdecPlayer