diff options
Diffstat (limited to 'src/xine-engine/buffer.h')
| -rw-r--r-- | src/xine-engine/buffer.h | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/src/xine-engine/buffer.h b/src/xine-engine/buffer.h index 622af913a..1bc0213e2 100644 --- a/src/xine-engine/buffer.h +++ b/src/xine-engine/buffer.h @@ -17,7 +17,7 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA * - * $Id: buffer.h,v 1.60 2002/07/17 20:29:04 miguelfreitas Exp $ + * $Id: buffer.h,v 1.61 2002/07/19 03:03:37 miguelfreitas Exp $ * * * contents: @@ -248,6 +248,8 @@ struct buf_element_s { * decoder_info[1] = BUF_SPECIAL_DECODER_CONFIG * decoder_info[2] = data size * decoder_info[3] = pointer to data + * This buffer is used to pass config information from .mp4 files + * (atom esds) to decoders. both mpeg4 and aac streams use that. */ #define BUF_SPECIAL_DECODER_CONFIG 4 @@ -255,10 +257,24 @@ struct buf_element_s { * In a BUF_SPECIAL_SAMPLE_SIZE_TABLE buffer: * decoder_info[1] = BUF_SPECIAL_SAMPLE_SIZE_TABLE * decoder_info[2] = - * decoder_info[3] = pointer to table with sample sizes (within current frame) + * decoder_info[3] = pointer to table with sample sizes + * (within current frame) + * libfaad needs to decode data on sample-sized chunks. + * unfortunately original sample sizes are not know at decoder stage. + * this buffer is used to pass such information. */ #define BUF_SPECIAL_SAMPLE_SIZE_TABLE 5 +/* + * In a BUF_SPECIAL_LPCM_CONFIG buffer: + * decoder_info[1] = BUF_SPECIAL_LPCM_CONFIG + * decoder_info[2] = config data + * lpcm data encoded into mpeg2 streams have a format configuration + * byte in every frame. this is used to detect the sample rate, + * number of bits and channels. + */ +#define BUF_SPECIAL_LPCM_CONFIG 6 + typedef struct palette_entry_s palette_entry_t; struct palette_entry_s |