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authorBenjamin Larsson <banan@ludd.ltu.se>2009-03-20 21:32:30 +0000
committerBenjamin Larsson <banan@ludd.ltu.se>2009-03-20 21:32:30 +0000
commit39b60944a8ef69e490b188b4f43de91110c51fee (patch)
treea8457282f949b8d320f2c38284e22d31e0c03e71 /libavcodec
parent3b0b84797ea7cb51ab4ef980e93b28f34c028fa5 (diff)
downloadffmpeg-39b60944a8ef69e490b188b4f43de91110c51fee.tar.gz
Get rid of av_random in cook.c
Originally committed as revision 18079 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec')
-rw-r--r--libavcodec/cook.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/libavcodec/cook.c b/libavcodec/cook.c
index 975607abbb..cee69fe14a 100644
--- a/libavcodec/cook.c
+++ b/libavcodec/cook.c
@@ -46,7 +46,8 @@
#include <stddef.h>
#include <stdio.h>
-#include "libavutil/random.h"
+#include "libavutil/lfg.h"
+#include "libavutil/random_seed.h"
#include "avcodec.h"
#include "bitstream.h"
#include "dsputil.h"
@@ -110,7 +111,7 @@ typedef struct cook {
int bits_per_subpacket;
int cookversion;
/* states */
- AVRandomState random_state;
+ AVLFG random_state;
/* transform data */
MDCTContext mdct_ctx;
@@ -541,7 +542,7 @@ static void scalar_dequant_float(COOKContext *q, int index, int quant_index,
} else {
/* noise coding if subband_coef_index[i] == 0 */
f1 = dither_tab[index];
- if (av_random(&q->random_state) < 0x80000000) f1 = -f1;
+ if (av_lfg_get(&q->random_state) < 0x80000000) f1 = -f1;
}
mlt_p[i] = f1 * rootpow2tab[quant_index+63];
}
@@ -1066,7 +1067,7 @@ static av_cold int cook_decode_init(AVCodecContext *avctx)
q->bit_rate = avctx->bit_rate;
/* Initialize RNG. */
- av_random_init(&q->random_state, 1);
+ av_lfg_init(&q->random_state, ff_random_get_seed());
/* Initialize extradata related variables. */
q->samples_per_channel = q->samples_per_frame / q->nb_channels;