devs/foxbox
1
0
Fork 0
forked from len0rd/rockbox
Code Pull requests Activity

Vorbis optimizations: allocation of PCM buffers in IRAM, avoiding copying.

Browse source 
Slight code improvements to the MDCT functions.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6590 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Pedro Vasconcelos 2005-06-06 23:01:51 +00:00
parent 127f14210f
commit 0f10e898f0
11 changed files with 110 additions and 132 deletions
Download patch file Download diff file Expand all files Collapse all files

4
apps/codecs/Tremor/res012.c
View file

@ -172,6 +172,7 @@ vorbis_look_residue *res0_look(vorbis_dsp_state *vd,vorbis_info_mode *vm,
return(look);
}
#define CHANNELS 2
/* a truncated packet here just means 'stop working'; it's not an error */
static int _01inverse(vorbis_block *vb,vorbis_look_residue *vl,
@ -254,6 +255,8 @@ int res1_inverse(vorbis_block *vb,vorbis_look_residue *vl,
return(0);
}
/* duplicate code here as speed is somewhat more important */
int res2_inverse(vorbis_block *vb,vorbis_look_residue *vl,
ogg_int32_t **in,int *nonzero,int ch){
@ -291,7 +294,6 @@ int res2_inverse(vorbis_block *vb,vorbis_look_residue *vl,
for(k=0;k<partitions_per_word && i<partvals;k++,i++)
if(info->secondstages[partword[l][k]]&(1<<s)){
codebook *stagebook=look->partbooks[partword[l][k]][s];
if(stagebook){
if(vorbis_book_decodevv_add(stagebook,in,
i*samples_per_partition+beginoff,ch,