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BGAV_PUBLIC int | bgav_get_audio_compression_info (bgav_t *bgav, int stream, gavl_compression_info_t *info) |
| Get audio compression info.
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BGAV_PUBLIC int | bgav_get_video_compression_info (bgav_t *bgav, int stream, gavl_compression_info_t *info) |
| Get video compression info.
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BGAV_PUBLIC int | bgav_get_overlay_compression_info (bgav_t *bgav, int stream, gavl_compression_info_t *info) |
| Get overlay compression info.
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BGAV_PUBLIC int | bgav_read_audio_packet (bgav_t *bgav, int stream, gavl_packet_t *p) |
| Read compressed audio packet.
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BGAV_PUBLIC gavl_packet_source_t * | bgav_get_audio_packet_source (bgav_t *bgav, int stream) |
| Get a packet source for an audio stream.
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BGAV_PUBLIC int | bgav_read_video_packet (bgav_t *bgav, int stream, gavl_packet_t *p) |
| Read compressed video packet.
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BGAV_PUBLIC gavl_packet_source_t * | bgav_get_video_packet_source (bgav_t *bgav, int stream) |
| Get a packet source for a video stream.
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BGAV_PUBLIC gavl_packet_source_t * | bgav_get_text_packet_source (bgav_t *bgav, int stream) |
| Get a packet source for a text subtitle stream.
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BGAV_PUBLIC gavl_packet_source_t * | bgav_get_overlay_packet_source (bgav_t *bgav, int stream) |
| Get a packet source for an overlay stream.
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This API layer allows you to read compressed media packets from the stream bypassing the codecs. You can read some streams of a file as compressed packets while decoding others. You can however not mix read calls for compressed packets and decompressed frames in a single stream. Reading compressed packets is supported only for a subset of codecs, which are defined by the gavl_codec_id_t. If your application supports compressed packets, you can first get the compression info with bgav_get_audio_compression_info or bgav_get_video_compression_info. If you support this compression, set the stream mode to BGAV_STREAM_READRAW. Before reading you must call bgav_start. Packets are then read with bgav_read_audio_packet and bgav_read_video_packet.
◆ bgav_get_audio_compression_info()
Get audio compression info.
- Parameters
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bgav | A decoder instance |
stream | Stream index (starting with 0) |
info | Returns the compression info |
- Returns
- 1 if a compression info was returned, 0 else
This function must be called after bgav_select_track. Before selecting the track the compression info might not be complete. Free the returned compression info with gavl_compression_info_free.
◆ bgav_get_video_compression_info()
Get video compression info.
- Parameters
-
bgav | A decoder instance |
stream | Stream index (starting with 0) |
info | Returns the compression info |
- Returns
- 1 if a compression info was returned, 0 else
This function must be called after bgav_select_track. Before selecting the track the compression info might not be complete. Free the returned compression info with gavl_compression_info_free.
◆ bgav_get_overlay_compression_info()
Get overlay compression info.
- Parameters
-
bgav | A decoder instance |
stream | Stream index (starting with 0) |
info | Returns the compression info |
- Returns
- 1 if a compression info was returned, 0 else
This function must be called after bgav_select_track. Before selecting the track the compression info might not be complete. Free the returned compression info with gavl_compression_info_free.
◆ bgav_read_audio_packet()
Read compressed audio packet.
- Parameters
-
bgav | A decoder instance |
stream | Stream index (starting with 0) |
p | Returns the packet |
- Returns
- 1 if a packet was read, 0 else
You can pass the same packet multiple times to a read fuction. Use gavl_packet_free when it's no longer used.
◆ bgav_get_audio_packet_source()
BGAV_PUBLIC gavl_packet_source_t * bgav_get_audio_packet_source |
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bgav_t * |
bgav, |
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int |
stream |
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Get a packet source for an audio stream.
- Parameters
-
bgav | A decoder instance |
stream | Stream index (starting with 0) |
- Returns
- The packet source
Use this as an alternative for bgav_read_audio_packet
◆ bgav_read_video_packet()
Read compressed video packet.
- Parameters
-
bgav | A decoder instance |
stream | Stream index (starting with 0) |
p | Returns the packet |
- Returns
- 1 if a packet was read, 0 else
You can pass the same packet multiple times to a read fuction. Use gavl_packet_free when it's no longer used.
◆ bgav_get_video_packet_source()
BGAV_PUBLIC gavl_packet_source_t * bgav_get_video_packet_source |
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bgav_t * |
bgav, |
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int |
stream |
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) |
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Get a packet source for a video stream.
- Parameters
-
bgav | A decoder instance |
stream | Stream index (starting with 0) |
- Returns
- The packet source
Use this as an alternative for bgav_read_video_packet
◆ bgav_get_text_packet_source()
BGAV_PUBLIC gavl_packet_source_t * bgav_get_text_packet_source |
( |
bgav_t * |
bgav, |
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int |
stream |
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Get a packet source for a text subtitle stream.
- Parameters
-
bgav | A decoder instance |
stream | Stream index (starting with 0) |
- Returns
- The packet source
Use this as an alternative for bgav_read_subtitle_text
◆ bgav_get_overlay_packet_source()
BGAV_PUBLIC gavl_packet_source_t * bgav_get_overlay_packet_source |
( |
bgav_t * |
bgav, |
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int |
stream |
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Get a packet source for an overlay stream.
- Parameters
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bgav | A decoder instance |
stream | Stream index (starting with 0) |
- Returns
- The packet source