Functions |
BGAV_PUBLIC int | bgav_num_tracks (bgav_t *bgav) |
| Get the number of tracks.
|
BGAV_PUBLIC const char * | bgav_get_description (bgav_t *bgav) |
| Get a technical description of the format.
|
BGAV_PUBLIC gavl_time_t | bgav_get_duration (bgav_t *bgav, int track) |
| Get the duration of a track.
|
BGAV_PUBLIC int | bgav_num_audio_streams (bgav_t *bgav, int track) |
| Get the number of audio streams of a track.
|
BGAV_PUBLIC int | bgav_num_video_streams (bgav_t *bgav, int track) |
| Get the number of video streams of a track.
|
BGAV_PUBLIC int | bgav_num_subtitle_streams (bgav_t *bgav, int track) |
| Get the number of subtitle streams of a track.
|
BGAV_PUBLIC const char * | bgav_get_track_name (bgav_t *bgav, int track) |
| Get the name a track.
|
BGAV_PUBLIC const bgav_metadata_t * | bgav_get_metadata (bgav_t *bgav, int track) |
| Get metadata for a track.
|
BGAV_PUBLIC int | bgav_select_track (bgav_t *bgav, int track) |
| Select a track.
|
BGAV_PUBLIC int | bgav_get_num_chapters (bgav_t *bgav, int track, int *timescale) |
| Get the number of chapters.
|
BGAV_PUBLIC const char * | bgav_get_chapter_name (bgav_t *bgav, int track, int chapter) |
| Get the name of a chapter.
|
BGAV_PUBLIC int64_t | bgav_get_chapter_time (bgav_t *bgav, int track, int chapter) |
| Get the name of a chapter.
|
Detailed Description
Each opened decoder can have multiple tracks. You must select the track you wish to decode before you can do anything else.
Function Documentation
Get the number of tracks.
- Parameters:
-
- Returns:
- The number of tracks.
Get a technical description of the format.
- Parameters:
-
- Returns:
- Description
Get the duration of a track.
- Parameters:
-
bgav | A decoder instance |
track | Track index (starting with 0) |
- Returns:
- The duration of a track or GAVL_TIME_UNDEFINED if the duration is not known.
Get the number of audio streams of a track.
- Parameters:
-
bgav | A decoder instance |
track | Track index (starting with 0) |
- Returns:
- The number of audio streams
Get the number of video streams of a track.
- Parameters:
-
bgav | A decoder instance |
track | Track index (starting with 0) |
- Returns:
- The number of video streams
Get the number of subtitle streams of a track.
- Parameters:
-
bgav | A decoder instance |
track | Track index (starting with 0) |
- Returns:
- The number of subtitle streams
Get the name a track.
- Parameters:
-
bgav | A decoder instance |
track | Track index (starting with 0) |
- Returns:
- The track name if present or NULL.
Get metadata for a track.
- Parameters:
-
bgav | A decoder instance |
track | Track index (starts with 0) |
- Returns:
- A metadata container (see Metadata)
Select a track.
- Parameters:
-
bgav | A decoder instance |
track | Track index (starts with 0) |
- Returns:
- 0 if there was no such track, 1 else
Select the track. All subsequent function calls will refer to the track you selected.
Get the number of chapters.
- Parameters:
-
bgav | A decoder instance |
track | Track index (starts with 0) |
timescale | Returns the timescale of the seekpoints |
- Returns:
- The number of chapters or 0 if the format doesn't support chapters
Chapters are simply named seekpoints. Use bgav_get_chapter_time and bgav_get_chapter_name to query the chapters.
Get the name of a chapter.
- Parameters:
-
bgav | A decoder instance |
track | Track index (starts with 0) |
chapter | Chapter index (starts with 0) |
- Returns:
- The name of the chapter or NULL
Get the name of a chapter.
- Parameters:
-
bgav | A decoder instance |
track | Track index (starts with 0) |
chapter | Chapter index (starts with 0) |
- Returns:
- The time of the chapter