[SCM] libav/experimental: Change from INIT_VLC_USE_STATIC to INIT_VLC_USE_NEW_STATIC in atrac3

siretart at users.alioth.debian.org siretart at users.alioth.debian.org
Sun Jun 30 16:46:03 UTC 2013


The following commit has been merged in the experimental branch:
commit 031b1cbeeb1e6234607c383341a9bac6829817c9
Author: Benjamin Larsson <banan at ludd.ltu.se>
Date:   Sun May 17 16:12:07 2009 +0000

    Change from INIT_VLC_USE_STATIC to INIT_VLC_USE_NEW_STATIC in atrac3
    
    Originally committed as revision 18865 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/libavcodec/atrac3.c b/libavcodec/atrac3.c
index c0825cb..205a123 100644
--- a/libavcodec/atrac3.c
+++ b/libavcodec/atrac3.c
@@ -933,6 +933,8 @@ static av_cold int atrac3_decode_init(AVCodecContext *avctx)
     int i;
     const uint8_t *edata_ptr = avctx->extradata;
     ATRAC3Context *q = avctx->priv_data;
+    static VLC_TYPE atrac3_vlc_table[4096][2];
+    static int vlcs_initialized = 0;
 
     /* Take data from the AVCodecContext (RM container). */
     q->sample_rate = avctx->sample_rate;
@@ -1023,10 +1025,15 @@ static av_cold int atrac3_decode_init(AVCodecContext *avctx)
 
 
     /* Initialize the VLC tables. */
+    if (!vlcs_initialized) {
     for (i=0 ; i<7 ; i++) {
+        spectral_coeff_tab[i].table = &atrac3_vlc_table[atrac3_vlc_offs[i]];
+        spectral_coeff_tab[i].table_allocated = atrac3_vlc_offs[i + 1] - atrac3_vlc_offs[i];
         init_vlc (&spectral_coeff_tab[i], 9, huff_tab_sizes[i],
             huff_bits[i], 1, 1,
-            huff_codes[i], 1, 1, INIT_VLC_USE_STATIC);
+            huff_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
+    }
+        vlcs_initialized = 1;
     }
 
     init_atrac3_transforms(q);
diff --git a/libavcodec/atrac3data.h b/libavcodec/atrac3data.h
index 00197d3..e71dc35 100644
--- a/libavcodec/atrac3data.h
+++ b/libavcodec/atrac3data.h
@@ -105,6 +105,10 @@ static const uint8_t* const huff_bits[7] = {
   huffbits1,huffbits2,huffbits3,huffbits4,huffbits5,huffbits6,huffbits7,
 };
 
+static const uint16_t atrac3_vlc_offs[] = {
+    0,512,1024,1536,2048,2560,3072,3584,4096
+};
+
 /* selector tables */
 
 static const uint8_t CLCLengthTab[8] = {0, 4, 3, 3, 4, 4, 5, 6};

-- 
Libav/FFmpeg packaging



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