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-rw-r--r--libao2/pl_format.c316
1 files changed, 0 insertions, 316 deletions
diff --git a/libao2/pl_format.c b/libao2/pl_format.c
deleted file mode 100644
index 6c0921179f..0000000000
--- a/libao2/pl_format.c
+++ /dev/null
@@ -1,316 +0,0 @@
-/* This audio output plugin changes the format of a data block. Valid
- output formats are: AFMT_U8, AFMT_S8, AFMT_S16_LE, AFMT_S16_BE
- AFMT_U16_LE, AFMT_U16_BE, AFMT_S32_LE and AFMT_S32_BE. The output
- format is spedified using the cfg switch 'format=NR' where NR is
- the number as given in libao2/afmt.h
-*/
-
-#define PLUGIN
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <inttypes.h>
-
-#include "audio_out.h"
-#include "audio_plugin.h"
-#include "audio_plugin_internal.h"
-#include "libaf/af_format.h"
-
-static ao_info_t info =
-{
- "Sample format conversion audio plugin",
- "format",
- "Anders",
- ""
-};
-
-LIBAO_PLUGIN_EXTERN(format)
-
-// local data
-typedef struct pl_format_s
-{
- void* data; // local audio data block
- int len; // local buffer length
- int in; // input fomat
- int out; // output fomat
- double sz_mult; // data size multiplier
-} pl_format_t;
-
-static pl_format_t pl_format={NULL,0,0,0,1};
-
-// Number of bits
-#define B08 (0<<0)
-#define B16 (1<<0)
-#define B32 (2<<0)
-#define NBITS_MASK (3<<0)
-
-// Endianess
-#define BE (0<<2) // Big Endian
-#define LE (1<<2) // Little Endian
-#define END_MASK (1<<2)
-
-// Signed
-#define US (0<<3) // Un Signed
-#define SI (1<<3) // SIgned
-#define SIGN_MASK (1<<3)
-
-// to set/get/query special features/parameters
-static int control(int cmd,void *arg){
- switch(cmd){
- case AOCONTROL_PLUGIN_SET_LEN:
- if(pl_format.data)
- free(pl_format.data);
- pl_format.len = ao_plugin_data.len;
- pl_format.data=(void*)malloc(ao_plugin_data.len);
- if(!pl_format.data)
- return CONTROL_ERROR;
- ao_plugin_data.len=(int)(((double)ao_plugin_data.len)/pl_format.sz_mult);
- return CONTROL_OK;
- }
- return -1;
-}
-
-// open & setup audio device
-// return: 1=success 0=fail
-static int init(){
- char buf1[128], buf2[128];
- // Sheck input format
- switch(ao_plugin_data.format){
- case(AF_FORMAT_U8):
- pl_format.in=LE|B08|US; break;
- case(AF_FORMAT_S8):
- pl_format.in=LE|B08|SI; break;
- case(AF_FORMAT_S16_LE):
- pl_format.in=LE|B16|SI; break;
- case(AF_FORMAT_S16_BE):
- pl_format.in=BE|B16|SI; break;
- case(AF_FORMAT_U16_LE):
- pl_format.in=LE|B16|US; break;
- case(AF_FORMAT_U16_BE):
- pl_format.in=BE|B16|US; break;
- case(AF_FORMAT_S32_LE):
- pl_format.in=LE|B32|SI; break;
- case(AF_FORMAT_S32_BE):
- pl_format.in=BE|B32|SI; break;
- case(AF_FORMAT_IMA_ADPCM):
- case(AF_FORMAT_MU_LAW):
- case(AF_FORMAT_A_LAW):
- case(AF_FORMAT_MPEG2):
- case(AF_FORMAT_AC3):
- printf("[pl_format] Input audio format not yet suported \n");
- return 0;
- default:
- printf("[pl_format] Unrecognised input audio format\n"); //This can not happen ....
- return 0;
- }
- // Sheck output format
- switch(ao_plugin_cfg.pl_format_type){
- case(AF_FORMAT_U8):
- pl_format.out=LE|B08|US; break;
- case(AF_FORMAT_S8):
- pl_format.out=LE|B08|SI; break;
- case(AF_FORMAT_S16_LE):
- pl_format.out=LE|B16|SI; break;
- case(AF_FORMAT_S16_BE):
- pl_format.out=BE|B16|SI; break;
- case(AF_FORMAT_U16_LE):
- pl_format.out=LE|B16|US; break;
- case(AF_FORMAT_U16_BE):
- pl_format.out=BE|B16|US; break;
- case(AF_FORMAT_S32_LE):
- pl_format.out=LE|B32|SI; break;
- case(AF_FORMAT_S32_BE):
- pl_format.out=BE|B32|SI; break;
- case(AF_FORMAT_IMA_ADPCM):
- case(AF_FORMAT_MU_LAW):
- case(AF_FORMAT_A_LAW):
- case(AF_FORMAT_MPEG2):
- case(AF_FORMAT_AC3):
- printf("[pl_format] Output audio format not yet suported \n");
- return 0;
- default:
- printf("[pl_format] Unrecognised audio output format\n");
- return 0;
- }
-
- // Tell the world what we are up to
- printf("[pl_format] Input format: %s, output format: %s \n",
- af_fmt2str(ao_plugin_data.format, buf1, 128),
- af_fmt2str(ao_plugin_cfg.pl_format_type, buf2, 128));
-
- // We are changing the format
- ao_plugin_data.format=ao_plugin_cfg.pl_format_type;
-
- // And perhaps the buffer size
- pl_format.sz_mult=1;
- if((pl_format.in&NBITS_MASK) > (pl_format.out&NBITS_MASK))
- pl_format.sz_mult/=(double)(1<<((pl_format.in&NBITS_MASK)-(pl_format.out&NBITS_MASK)));
- if((pl_format.in&NBITS_MASK) < (pl_format.out&NBITS_MASK))
- pl_format.sz_mult*=(double)(1<<((pl_format.out&NBITS_MASK)-(pl_format.in&NBITS_MASK)));
- ao_plugin_data.sz_mult/=pl_format.sz_mult;
-
- return 1;
-}
-
-// close plugin
-static void uninit(){
- if(pl_format.data)
- free(pl_format.data);
- pl_format.data=NULL;
-}
-
-// empty buffers
-static void reset(){
- memset(pl_format.data, 0, pl_format.len);
-}
-
-// processes 'ao_plugin_data.len' bytes of 'data'
-// called for every block of data
-// FIXME: this routine needs to be optimized (it is probably possible to do a lot here)
-static int play(){
- register int i=0;
- void* in_data=ao_plugin_data.data;
- void* out_data=pl_format.data;
- int len=(ao_plugin_data.len)>>(pl_format.in&NBITS_MASK);
- ao_plugin_data.len=(int)(((double)ao_plugin_data.len)*pl_format.sz_mult);
-
- // Change to little endian (Is this true for sun ?)
- if((pl_format.in&END_MASK)!=LE){
- switch(pl_format.in&NBITS_MASK){
- case(B16):{
- register uint16_t s;
- for(i=1;i<len;i++){
- s=((uint16_t*)in_data)[i];
- ((uint16_t*)in_data)[i]=(uint16_t)(((s&0x00FF)<<8) | (s&0xFF00)>>8);
- }
- }
- break;
- case(B32):{
- register uint32_t s;
- for(i=1;i<len;i++){
- s=((uint32_t*)in_data)[i];
- ((uint32_t*)in_data)[i]=(uint32_t)(((s&0x000000FF)<<24) | ((s&0x0000FF00)<<8) |
- ((s&0x00FF0000)>>8) | ((s&0xFF000000)>>24));
- }
- }
- break;
- }
- }
- // Change signed/unsigned
- if((pl_format.in&SIGN_MASK) != (pl_format.out&SIGN_MASK)){
- switch((pl_format.in&NBITS_MASK)){
- case(B08):
- switch(pl_format.in&SIGN_MASK){
- case(US):
- for(i=0;i<len;i++)
- ((int8_t*)in_data)[i]=(int8_t)(-127+((int)((uint8_t*)in_data)[i]));
- break;
- case(SI):
- for(i=0;i<len;i++)
- ((uint8_t*)in_data)[i]=(uint8_t)(+128+((int)((int8_t*)in_data)[i]));
- break;
- }
- break;
- case(B16):
- switch(pl_format.in&SIGN_MASK){
- case(US):
- for(i=0;i<len;i++)
- ((int16_t*)in_data)[i]=(int16_t)(-32767+((int)((uint16_t*)in_data)[i]));
- break;
- case(SI):
- for(i=0;i<len;i++)
- ((uint16_t*)in_data)[i]=(uint16_t)(+32768+((int)((int16_t*)in_data)[i]));
- break;
- }
- break;
- case(B32):
- switch(pl_format.in&SIGN_MASK){
- case(US):
- for(i=0;i<len;i++)
- ((int32_t*)in_data)[i]=(int32_t)(((uint32_t*)in_data)[i]-0x80000000);
- break;
- case(SI):
- for(i=0;i<len;i++)
- ((uint32_t*)in_data)[i]=(uint32_t)(+(1<<31)+((int32_t*)in_data)[i]);
- break;
- }
- break;
- }
- }
- // Change the number of bits
- if((pl_format.in&NBITS_MASK) == (pl_format.out&NBITS_MASK)){
- int sz=(int)((double)ao_plugin_data.len/pl_format.sz_mult);
- for(i=0;i<sz;i++)
- ((char*)out_data)[i]=((char*)in_data)[i];
- } else {
- switch(pl_format.in&NBITS_MASK){
- case(B08):
- switch(pl_format.out&NBITS_MASK){
- case(B16):
- for(i=1;i<len;i++)
- ((uint16_t*)out_data)[i]=((uint16_t)((uint8_t*)in_data)[i])<<8;
- break;
- case(B32):
- for(i=1;i<len;i++)
- ((uint32_t*)out_data)[i]=((uint32_t)((uint8_t*)in_data)[i])<<24;
- break;
- }
- break;
- case(B16):
- switch(pl_format.out&NBITS_MASK){
- case(B08):
- for(i=0;i<len;i++)
- ((uint8_t*)out_data)[i]=(uint8_t)((((uint16_t*)in_data)[i])>>8);
- break;
- case(B32):
- for(i=1;i<len;i++)
- ((uint32_t*)out_data)[i]=((uint32_t)((uint16_t*)in_data)[i])<<16;
- break;
- }
- break;
- case(B32):
- switch(pl_format.out&NBITS_MASK){
- case(B08):
- for(i=0;i<len;i++)
- ((uint8_t*)out_data)[i]=(uint8_t)((((uint32_t*)in_data)[i])>>24);
- break;
- case(B16):
- for(i=1;i<len;i++)
- ((uint16_t*)out_data)[i]=(uint16_t)((((uint32_t*)in_data)[i])>>16);
- break;
- }
- break;
- }
- }
- // Switch to the correct endainess (agiain the problem with sun?)
- if((pl_format.out&END_MASK)!=LE){
- switch(pl_format.in&NBITS_MASK){
- case(B16):{
- register uint16_t s;
- for(i=1;i<len;i++){
- s=((uint16_t*)out_data)[i];
- ((uint16_t*)out_data)[i]=(uint16_t)(((s&0x00FF)<<8) | (s&0xFF00)>>8);
- }
- }
- break;
- case(B32):{
- register uint32_t s;
- for(i=1;i<len;i++){
- s=((uint32_t*)out_data)[i];
- ((uint32_t*)out_data)[i]=(uint32_t)(((s&0x000000FF)<<24) | ((s&0x0000FF00)<<8) |
- ((s&0x00FF0000)>>8) | ((s&0xFF000000)>>24));
- }
- }
- break;
- }
- }
- ao_plugin_data.data=out_data;
- return 1;
-}
-
-
-
-
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-13 01:58:53 +0000