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authorXhmikosR <xhmikosr@users.sourceforge.net>2010-04-09 18:12:59 +0400
committerXhmikosR <xhmikosr@users.sourceforge.net>2010-04-09 18:12:59 +0400
commitefbc9d9043ff8ff92716ddd00a5f61412d535593 (patch)
tree8f3e621f756cf1f5b4d64d97964c7e7abd8aaf08 /src/filters/transform/MPCVideoDec/ffmpeg/libavcodec/rangecoder.h
parentdf6b139a6d9027156f614b68687e039e3a5854db (diff)
revert r1783
git-svn-id: https://mpc-hc.svn.sourceforge.net/svnroot/mpc-hc/trunk@1785 10f7b99b-c216-0410-bff0-8a66a9350fd8
Diffstat (limited to 'src/filters/transform/MPCVideoDec/ffmpeg/libavcodec/rangecoder.h')
-rw-r--r--src/filters/transform/MPCVideoDec/ffmpeg/libavcodec/rangecoder.h91
1 files changed, 35 insertions, 56 deletions
diff --git a/src/filters/transform/MPCVideoDec/ffmpeg/libavcodec/rangecoder.h b/src/filters/transform/MPCVideoDec/ffmpeg/libavcodec/rangecoder.h
index 149a5cec3..f5ce3684f 100644
--- a/src/filters/transform/MPCVideoDec/ffmpeg/libavcodec/rangecoder.h
+++ b/src/filters/transform/MPCVideoDec/ffmpeg/libavcodec/rangecoder.h
@@ -31,8 +31,7 @@
#include <assert.h>
#include "libavutil/common.h"
-typedef struct RangeCoder
-{
+typedef struct RangeCoder{
int low;
int range;
int outstanding_count;
@@ -42,120 +41,100 @@ typedef struct RangeCoder
uint8_t *bytestream_start;
uint8_t *bytestream;
uint8_t *bytestream_end;
-} RangeCoder;
+}RangeCoder;
void ff_init_range_encoder(RangeCoder *c, uint8_t *buf, int buf_size);
void ff_init_range_decoder(RangeCoder *c, const uint8_t *buf, int buf_size);
int ff_rac_terminate(RangeCoder *c);
void ff_build_rac_states(RangeCoder *c, int factor, int max_p);
-static inline void renorm_encoder(RangeCoder *c)
-{
+static inline void renorm_encoder(RangeCoder *c){
//FIXME optimize
- while(c->range < 0x100)
- {
- if(c->outstanding_byte < 0)
- {
- c->outstanding_byte = c->low >> 8;
- }
- else if(c->low <= 0xFF00)
- {
+ while(c->range < 0x100){
+ if(c->outstanding_byte < 0){
+ c->outstanding_byte= c->low>>8;
+ }else if(c->low <= 0xFF00){
*c->bytestream++ = c->outstanding_byte;
- for(; c->outstanding_count; c->outstanding_count--)
+ for(;c->outstanding_count; c->outstanding_count--)
*c->bytestream++ = 0xFF;
- c->outstanding_byte = c->low >> 8;
- }
- else if(c->low >= 0x10000)
- {
+ c->outstanding_byte= c->low>>8;
+ }else if(c->low >= 0x10000){
*c->bytestream++ = c->outstanding_byte + 1;
- for(; c->outstanding_count; c->outstanding_count--)
+ for(;c->outstanding_count; c->outstanding_count--)
*c->bytestream++ = 0x00;
- c->outstanding_byte = (c->low >> 8) & 0xFF;
- }
- else
- {
+ c->outstanding_byte= (c->low>>8) & 0xFF;
+ }else{
c->outstanding_count++;
}
- c->low = (c->low & 0xFF) << 8;
+ c->low = (c->low & 0xFF)<<8;
c->range <<= 8;
}
}
-static inline int get_rac_count(RangeCoder *c)
-{
- int x = c->bytestream - c->bytestream_start + c->outstanding_count;
+static inline int get_rac_count(RangeCoder *c){
+ int x= c->bytestream - c->bytestream_start + c->outstanding_count;
if(c->outstanding_byte >= 0)
x++;
- return 8 * x - av_log2(c->range);
+ return 8*x - av_log2(c->range);
}
-static inline void put_rac(RangeCoder *c, uint8_t * const state, int bit)
-{
- int range1 = (c->range * (*state)) >> 8;
+static inline void put_rac(RangeCoder *c, uint8_t * const state, int bit){
+ int range1= (c->range * (*state)) >> 8;
assert(*state);
assert(range1 < c->range);
assert(range1 > 0);
- if(!bit)
- {
+ if(!bit){
c->range -= range1;
- *state = c->zero_state[*state];
- }
- else
- {
+ *state= c->zero_state[*state];
+ }else{
c->low += c->range - range1;
c->range = range1;
- *state = c->one_state[*state];
+ *state= c->one_state[*state];
}
renorm_encoder(c);
}
-static inline void refill(RangeCoder *c)
-{
- if(c->range < 0x100)
- {
+static inline void refill(RangeCoder *c){
+ if(c->range < 0x100){
c->range <<= 8;
c->low <<= 8;
if(c->bytestream < c->bytestream_end)
- c->low += c->bytestream[0];
+ c->low+= c->bytestream[0];
c->bytestream++;
}
}
-static inline int get_rac(RangeCoder *c, uint8_t * const state)
-{
- int range1 = (c->range * (*state)) >> 8;
+static inline int get_rac(RangeCoder *c, uint8_t * const state){
+ int range1= (c->range * (*state)) >> 8;
int av_unused one_mask;
c->range -= range1;
#if 1
- if(c->low < c->range)
- {
- *state = c->zero_state[*state];
+ if(c->low < c->range){
+ *state= c->zero_state[*state];
refill(c);
return 0;
- }
- else
- {
+ }else{
c->low -= c->range;
- *state = c->one_state[*state];
+ *state= c->one_state[*state];
c->range = range1;
refill(c);
return 1;
}
#else
- one_mask = (c->range - c->low - 1) >> 31;
+ one_mask= (c->range - c->low-1)>>31;
c->low -= c->range & one_mask;
c->range += (range1 - c->range) & one_mask;
- *state = c->zero_state[(*state) + (256&one_mask)];
+ *state= c->zero_state[(*state) + (256&one_mask)];
refill(c);
- return one_mask & 1;
+ return one_mask&1;
#endif
}