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authorDerek Buitenhuis <derek.buitenhuis@gmail.com>2016-05-11 19:10:10 +0100
committerDerek Buitenhuis <derek.buitenhuis@gmail.com>2016-05-11 19:13:03 +0100
commit96d616052b3d39678e477fa10610ca688f46fff9 (patch)
tree8bd31d06318bc786ea8f1d84f92090c9c860bc11 /libavcodec/cabac.c
parent27506aceda8115f82f89691a4441d62a8cf24a6e (diff)
parentd12b5b2f135aade4099f4b26b0fe678656158c13 (diff)
downloadffmpeg-96d616052b3d39678e477fa10610ca688f46fff9.tar.gz
Merge commit 'd12b5b2f135aade4099f4b26b0fe678656158c13'
* commit 'd12b5b2f135aade4099f4b26b0fe678656158c13': build: Split test programs off into separate files Some conversions done by: James Almer <jamrial@gmail.com> Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Diffstat (limited to 'libavcodec/cabac.c')
-rw-r--r--libavcodec/cabac.c147
1 files changed, 0 insertions, 147 deletions
diff --git a/libavcodec/cabac.c b/libavcodec/cabac.c
index 1a877dd2b5..a718d51ddb 100644
--- a/libavcodec/cabac.c
+++ b/libavcodec/cabac.c
@@ -200,150 +200,3 @@ int ff_init_cabac_decoder(CABACContext *c, const uint8_t *buf, int buf_size){
return AVERROR_INVALIDDATA;
return 0;
}
-
-#ifdef TEST
-#define SIZE 10240
-
-#include "libavutil/lfg.h"
-#include "avcodec.h"
-
-static inline void put_cabac_bit(CABACContext *c, int b){
- put_bits(&c->pb, 1, b);
- for(;c->outstanding_count; c->outstanding_count--){
- put_bits(&c->pb, 1, 1-b);
- }
-}
-
-static inline void renorm_cabac_encoder(CABACContext *c){
- while(c->range < 0x100){
- //FIXME optimize
- if(c->low<0x100){
- put_cabac_bit(c, 0);
- }else if(c->low<0x200){
- c->outstanding_count++;
- c->low -= 0x100;
- }else{
- put_cabac_bit(c, 1);
- c->low -= 0x200;
- }
-
- c->range+= c->range;
- c->low += c->low;
- }
-}
-
-static void put_cabac(CABACContext *c, uint8_t * const state, int bit){
- int RangeLPS= ff_h264_lps_range[2*(c->range&0xC0) + *state];
-
- if(bit == ((*state)&1)){
- c->range -= RangeLPS;
- *state = ff_h264_mlps_state[128 + *state];
- }else{
- c->low += c->range - RangeLPS;
- c->range = RangeLPS;
- *state= ff_h264_mlps_state[127 - *state];
- }
-
- renorm_cabac_encoder(c);
-}
-
-/**
- * @param bit 0 -> write zero bit, !=0 write one bit
- */
-static void put_cabac_bypass(CABACContext *c, int bit){
- c->low += c->low;
-
- if(bit){
- c->low += c->range;
- }
-//FIXME optimize
- if(c->low<0x200){
- put_cabac_bit(c, 0);
- }else if(c->low<0x400){
- c->outstanding_count++;
- c->low -= 0x200;
- }else{
- put_cabac_bit(c, 1);
- c->low -= 0x400;
- }
-}
-
-/**
- *
- * @return the number of bytes written
- */
-static int put_cabac_terminate(CABACContext *c, int bit){
- c->range -= 2;
-
- if(!bit){
- renorm_cabac_encoder(c);
- }else{
- c->low += c->range;
- c->range= 2;
-
- renorm_cabac_encoder(c);
-
- av_assert0(c->low <= 0x1FF);
- put_cabac_bit(c, c->low>>9);
- put_bits(&c->pb, 2, ((c->low>>7)&3)|1);
-
- flush_put_bits(&c->pb); //FIXME FIXME FIXME XXX wrong
- }
-
- return (put_bits_count(&c->pb)+7)>>3;
-}
-
-int main(void){
- CABACContext c;
- uint8_t b[9*SIZE];
- uint8_t r[9*SIZE];
- int i, ret = 0;
- uint8_t state[10]= {0};
- AVLFG prng;
-
- av_lfg_init(&prng, 1);
- ff_init_cabac_encoder(&c, b, SIZE);
-
- for(i=0; i<SIZE; i++){
- if(2*i<SIZE) r[i] = av_lfg_get(&prng) % 7;
- else r[i] = (i>>8)&1;
- }
-
- for(i=0; i<SIZE; i++){
- put_cabac_bypass(&c, r[i]&1);
- }
-
- for(i=0; i<SIZE; i++){
- put_cabac(&c, state, r[i]&1);
- }
-
- i= put_cabac_terminate(&c, 1);
- b[i++] = av_lfg_get(&prng);
- b[i ] = av_lfg_get(&prng);
-
- ff_init_cabac_decoder(&c, b, SIZE);
-
- memset(state, 0, sizeof(state));
-
- for(i=0; i<SIZE; i++){
- if( (r[i]&1) != get_cabac_bypass(&c) ) {
- av_log(NULL, AV_LOG_ERROR, "CABAC bypass failure at %d\n", i);
- ret = 1;
- }
- }
-
- for(i=0; i<SIZE; i++){
- if( (r[i]&1) != get_cabac_noinline(&c, state) ) {
- av_log(NULL, AV_LOG_ERROR, "CABAC failure at %d\n", i);
- ret = 1;
- }
- }
- if(!get_cabac_terminate(&c)) {
- av_log(NULL, AV_LOG_ERROR, "where's the Terminator?\n");
- ret = 1;
- }
-
- return ret;
-}
-
-#endif /* TEST */