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Another experimental mode with longer frames.

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This commit is contained in:
Jean-Marc Valin 2007-12-08 00:27:10 +11:00
parent 6baa8e18d9
commit aa5bd61cb7
2 changed files with 21 additions and 0 deletions
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1
libcelt/celt.h
View file

@ -39,6 +39,7 @@ typedef struct CELTMode CELTMode;
extern const CELTMode const *celt_mode1; extern const CELTMode const *celt_mode1;
extern const CELTMode const *celt_mode2; extern const CELTMode const *celt_mode2;
extern const CELTMode const *celt_mode3;
/* Encoder stuff */ /* Encoder stuff */

20
libcelt/modes.c
View file

@ -42,6 +42,10 @@ const int qpulses2[NBANDS128] = {28,24,20,16,24,20, 18, 12, 10, 10,-7, -4, 0,
const int pbank1[PBANDS128+2] = {0, 4, 8, 12, 20, PITCH_END128, 128}; const int pbank1[PBANDS128+2] = {0, 4, 8, 12, 20, PITCH_END128, 128};
const int qbank3[NBANDS128+2] = {0, 4, 8, 12, 16, 24, 32, 40, 48, 56, 72, 88, 104, 126, 168, 232, 256};
#define PITCH_END256 72
const int pbank3[PBANDS128+2] = {0, 8, 16, 24, 40, PITCH_END256, 256};
/* Approx 38 kbps @ 44.1 kHz */ /* Approx 38 kbps @ 44.1 kHz */
const CELTMode mode1 = { const CELTMode mode1 = {
256, /**< frameSize */ 256, /**< frameSize */
@ -72,5 +76,21 @@ const CELTMode mode2 = {
qpulses2 /**< nbPulses */ qpulses2 /**< nbPulses */
}; };
/* Approx 38 kbps @ 44.1 kHz */
const CELTMode mode3 = {
512, /**< frameSize */
256, /**< mdctSize */
2, /**< nbMdctBlocks */
NBANDS128, /**< nbEBands */
PBANDS128, /**< nbPBands */
PITCH_END256,/**< pitchEnd */
qbank3, /**< eBands */
pbank3, /**< pBands*/
qpulses2 /**< nbPulses */
};
const CELTMode const *celt_mode1 = &mode1; const CELTMode const *celt_mode1 = &mode1;
const CELTMode const *celt_mode2 = &mode2; const CELTMode const *celt_mode2 = &mode2;
const CELTMode const *celt_mode3 = &mode3;