[FFmpeg-soc] [soc]AMR-WB decoder branch, master, updated.
Marcelo Póvoa
marspeoplester at gmail.com
Sun Aug 8 19:46:39 CEST 2010
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commit 98f6e7534f557e9800395ab0fa6c39bdc4a1f907
Author: Marcelo Povoa <marspeoplester at gmail.com>
Date: Sun Aug 8 14:45:17 2010 -0300
Correct the anti_sparseness header and fix a bug in
the integer case of upsampling
diff --git a/libavcodec/amrwbdec.c b/libavcodec/amrwbdec.c
index 127b57c..228617d 100644
--- a/libavcodec/amrwbdec.c
+++ b/libavcodec/amrwbdec.c
@@ -749,11 +749,11 @@ static float voice_factor(float *p_vector, float p_gain,
/**
* Reduce fixed vector sparseness by smoothing with one of three IR filters.
* Also known as "adaptive phase dispersion".
- * Returns the filtered fixed vector address
+ * Returns the overwritten filtered fixed vector address
*
* @param[in] ctx The context
- * @param[in] fixed_vector Unfiltered fixed vector
- * @param[in] out Space for modified vector if necessary
+ * @param[in,out] fixed_vector Unfiltered fixed vector
+ * @param[out] out Space for modified vector if necessary
*/
static float *anti_sparseness(AMRWBContext *ctx,
float *fixed_vector, float *out)
@@ -1016,7 +1016,7 @@ static void upsample_5_4(float *out, const float *in, int o_size)
int frac_part = (i << 2) - 5 * int_part;
if (!frac_part) {
- out[i] = in[i];
+ out[i] = in[int_part];
} else
out[i] = ff_dot_productf(in0 + int_part, upsample_fir[4 - frac_part],
UPS_MEM_SIZE);
@@ -1383,6 +1383,9 @@ static int amrwb_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
high_pass_filter(&ctx->samples_up[UPS_MEM_SIZE], hpf_31_coef,
ctx->hpf_31_mem, &ctx->samples_up[UPS_MEM_SIZE]);
+ /*for (i = 0; i < AMRWB_SUBFRAME_SIZE; i++)
+ ctx->samples_up[UPS_MEM_SIZE+i] = rint(ctx->samples_up[UPS_MEM_SIZE+i]);*/
+
upsample_5_4(sub_buf, &ctx->samples_up[UPS_FIR_SIZE],
AMRWB_SFR_SIZE_OUT);
-----------------------------------------------------------------------
Summary of changes:
libavcodec/amrwbdec.c | 11 +++++++----
1 files changed, 7 insertions(+), 4 deletions(-)
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