openharmony/third_party_ffmpeg
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Avoid reverse addressing, not sure if this is faster or slower but people

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maybe are confused by it. The code needs to be optimized anyway.

Originally committed as revision 12854 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2008-04-16 14:59:23 +00:00
parent 2f75d26c10
commit 5c65660506
1 changed files with 3 additions and 3 deletions
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6
libavcodec/nellymoserdec.c
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@ -92,7 +92,7 @@ static const int16_t nelly_delta_table[32] = {
typedef struct NellyMoserDecodeContext {
AVCodecContext* avctx;
DECLARE_ALIGNED_16(float,float_buf[NELLY_SAMPLES]);
float state[64];
float state[128];
AVRandomState random_state;
GetBitContext gb;
int add_bias;
@ -121,12 +121,12 @@ static void overlap_and_window(NellyMoserDecodeContext *s, float *state, float *
while (bot < NELLY_BUF_LEN/2) {
audio[bot] = ( a_in[bot]*sine_window[bot]+state[bot]*sine_window[top])/s->scale_bias + s->add_bias;
audio[top] = ( a_in[top]*sine_window[top]+state[bot]*sine_window[bot])/s->scale_bias + s->add_bias;
state[bot] = a_in[bot + NELLY_BUF_LEN];
audio[top] = ( a_in[top]*sine_window[top]+state[top]*sine_window[bot])/s->scale_bias + s->add_bias;
bot++;
top--;
}
memcpy(state, a_in + NELLY_BUF_LEN, sizeof(float)*NELLY_BUF_LEN);
}
static int sum_bits(short *buf, short shift, short off)