[SCM] libav/experimental: Use ff_sine_32 in atrac1.

siretart at users.alioth.debian.org siretart at users.alioth.debian.org
Sun Jun 30 16:51:39 UTC 2013


The following commit has been merged in the experimental branch:
commit edd897b1b3327cd0c2cac3f6518750101fbcad4a
Author: Benjamin Larsson <banan at ludd.ltu.se>
Date:   Tue Sep 22 17:03:28 2009 +0000

    Use ff_sine_32 in atrac1.
    
    Originally committed as revision 19967 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/libavcodec/atrac1.c b/libavcodec/atrac1.c
index cac82b3..746deab 100644
--- a/libavcodec/atrac1.c
+++ b/libavcodec/atrac1.c
@@ -82,8 +82,6 @@ typedef struct {
     DSPContext          dsp;
 } AT1Ctx;
 
-DECLARE_ALIGNED_16(static float, short_window[32]);
-
 /** size of the transform in samples in the long mode for each QMF band */
 static const uint16_t samples_per_band[3] = {128, 128, 256};
 static const uint8_t   mdct_long_nbits[3] = {7, 7, 8};
@@ -134,7 +132,7 @@ static int at1_imdct_block(AT1SUCtx* su, AT1Ctx *q)
 
             /* overlap and window long blocks */
             q->dsp.vector_fmul_window(q->bands[band_num], &su->spectrum[1][ref_pos + band_samples - 16],
-                                      &su->spectrum[0][ref_pos], short_window, 0, 16);
+                                      &su->spectrum[0][ref_pos], ff_sine_32, 0, 16);
             memcpy(q->bands[band_num] + 32, &su->spectrum[0][ref_pos + 16], 240 * sizeof(float));
         } else {
             /* short blocks */
@@ -146,7 +144,7 @@ static int at1_imdct_block(AT1SUCtx* su, AT1Ctx *q)
 
                 /* overlap and window between short blocks */
                 q->dsp.vector_fmul_window(&q->bands[band_num][start_pos], prev_buf,
-                                          &su->spectrum[0][ref_pos + start_pos], short_window, 0, 16);
+                                          &su->spectrum[0][ref_pos + start_pos], ff_sine_32, 0, 16);
 
                 prev_buf = &su->spectrum[0][ref_pos+start_pos + 16];
                 start_pos += 32; // use hardcoded block_size
@@ -342,7 +340,7 @@ static av_cold int atrac1_decode_init(AVCodecContext *avctx)
     ff_mdct_init(&q->mdct_ctx[1], 8, 1, -1.0/ (1 << 15));
     ff_mdct_init(&q->mdct_ctx[2], 9, 1, -1.0/ (1 << 15));
 
-    ff_sine_window_init(short_window, 32);
+    ff_sine_window_init(ff_sine_32, 32);
 
     atrac_generate_tables();
 

-- 
Libav/FFmpeg packaging



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