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authorGravatar arpi <arpi@b3059339-0415-0410-9bf9-f77b7e298cf2>2002-08-30 19:49:37 +0000
committerGravatar arpi <arpi@b3059339-0415-0410-9bf9-f77b7e298cf2>2002-08-30 19:49:37 +0000
commit280267c9026fdba1e425edbd9ae7d39af3868e1b (patch)
treee3074f102e0f60c98ebff9e6d70754d6191f6cdc /libmpcodecs/ad_a52.c
parent9f34ada84e3625dc08b15334d9e5d0b98f2d8ccc (diff)
renamed to match driver family name
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@7173 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'libmpcodecs/ad_a52.c')
-rw-r--r--libmpcodecs/ad_a52.c192
1 files changed, 0 insertions, 192 deletions
diff --git a/libmpcodecs/ad_a52.c b/libmpcodecs/ad_a52.c
deleted file mode 100644
index cc85fe0004..0000000000
--- a/libmpcodecs/ad_a52.c
+++ /dev/null
@@ -1,192 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-#include "config.h"
-#include "mp_msg.h"
-#include "help_mp.h"
-
-#include "ad_internal.h"
-
-#include "cpudetect.h"
-
-#include "../liba52/a52.h"
-#include "../liba52/mm_accel.h"
-
-static sample_t * a52_samples;
-static a52_state_t a52_state;
-static uint32_t a52_flags=0;
-
-#include "bswap.h"
-
-static ad_info_t info =
-{
- "AC3-liba52",
- "liba52",
- AFM_A52,
- "Nick Kurshev",
- "Michel LESPINASSE",
- ""
-};
-
-LIBAD_EXTERN(liba52)
-
-extern int audio_output_channels;
-
-int a52_fillbuff(sh_audio_t *sh_audio){
-int length=0;
-int flags=0;
-int sample_rate=0;
-int bit_rate=0;
-
- sh_audio->a_in_buffer_len=0;
- /* sync frame:*/
-while(1){
- while(sh_audio->a_in_buffer_len<7){
- int c=demux_getc(sh_audio->ds);
- if(c<0) return -1; /* EOF*/
- sh_audio->a_in_buffer[sh_audio->a_in_buffer_len++]=c;
- }
- length = a52_syncinfo (sh_audio->a_in_buffer, &flags, &sample_rate, &bit_rate);
- if(length>=7 && length<=3840) break; /* we're done.*/
- /* bad file => resync*/
- memcpy(sh_audio->a_in_buffer,sh_audio->a_in_buffer+1,6);
- --sh_audio->a_in_buffer_len;
-}
- mp_msg(MSGT_DECAUDIO,MSGL_DBG2,"a52: len=%d flags=0x%X %d Hz %d bit/s\n",length,flags,sample_rate,bit_rate);
- sh_audio->samplerate=sample_rate;
- sh_audio->i_bps=bit_rate/8;
- demux_read_data(sh_audio->ds,sh_audio->a_in_buffer+7,length-7);
-
- if(crc16_block(sh_audio->a_in_buffer+2,length-2)!=0)
- mp_msg(MSGT_DECAUDIO,MSGL_STATUS,"a52: CRC check failed! \n");
-
- return length;
-}
-
-/* returns: number of available channels*/
-static int a52_printinfo(sh_audio_t *sh_audio){
-int flags, sample_rate, bit_rate;
-char* mode="unknown";
-int channels=0;
- a52_syncinfo (sh_audio->a_in_buffer, &flags, &sample_rate, &bit_rate);
- switch(flags&A52_CHANNEL_MASK){
- case A52_CHANNEL: mode="channel"; channels=2; break;
- case A52_MONO: mode="mono"; channels=1; break;
- case A52_STEREO: mode="stereo"; channels=2; break;
- case A52_3F: mode="3f";channels=3;break;
- case A52_2F1R: mode="2f+1r";channels=3;break;
- case A52_3F1R: mode="3f+1r";channels=4;break;
- case A52_2F2R: mode="2f+2r";channels=4;break;
- case A52_3F2R: mode="3f+2r";channels=5;break;
- case A52_CHANNEL1: mode="channel1"; channels=2; break;
- case A52_CHANNEL2: mode="channel2"; channels=2; break;
- case A52_DOLBY: mode="dolby"; channels=2; break;
- }
- mp_msg(MSGT_DECAUDIO,MSGL_INFO,"AC3: %d.%d (%s%s) %d Hz %3.1f kbit/s\n",
- channels, (flags&A52_LFE)?1:0,
- mode, (flags&A52_LFE)?"+lfe":"",
- sample_rate, bit_rate*0.001f);
- return (flags&A52_LFE) ? (channels+1) : channels;
-}
-
-
-static int preinit(sh_audio_t *sh)
-{
- /* Dolby AC3 audio: */
- /* however many channels, 2 bytes in a word, 256 samples in a block, 6 blocks in a frame */
- sh->audio_out_minsize=audio_output_channels*2*256*6;
- sh->audio_in_minsize=3840;
- return 1;
-}
-
-static int init(sh_audio_t *sh_audio)
-{
- uint32_t a52_accel=0;
- sample_t level=1, bias=384;
- int flags=0;
- /* Dolby AC3 audio:*/
- if(gCpuCaps.hasSSE) a52_accel|=MM_ACCEL_X86_SSE;
- if(gCpuCaps.hasMMX) a52_accel|=MM_ACCEL_X86_MMX;
- if(gCpuCaps.hasMMX2) a52_accel|=MM_ACCEL_X86_MMXEXT;
- if(gCpuCaps.has3DNow) a52_accel|=MM_ACCEL_X86_3DNOW;
- if(gCpuCaps.has3DNowExt) a52_accel|=MM_ACCEL_X86_3DNOWEXT;
- a52_samples=a52_init (a52_accel);
- if (a52_samples == NULL) {
- mp_msg(MSGT_DECAUDIO,MSGL_ERR,"A52 init failed\n");
- return 0;
- }
- if(a52_fillbuff(sh_audio)<0){
- mp_msg(MSGT_DECAUDIO,MSGL_ERR,"A52 sync failed\n");
- return 0;
- }
- /* 'a52 cannot upmix' hotfix:*/
- a52_printinfo(sh_audio);
- sh_audio->channels=audio_output_channels;
-while(sh_audio->channels>0){
- switch(sh_audio->channels){
- case 1: a52_flags=A52_MONO; break;
-/* case 2: a52_flags=A52_STEREO; break;*/
- case 2: a52_flags=A52_DOLBY; break;
-/* case 3: a52_flags=A52_3F; break;*/
- case 3: a52_flags=A52_2F1R; break;
- case 4: a52_flags=A52_2F2R; break; /* 2+2*/
- case 5: a52_flags=A52_3F2R; break;
- case 6: a52_flags=A52_3F2R|A52_LFE; break; /* 5.1*/
- }
- /* test:*/
- flags=a52_flags|A52_ADJUST_LEVEL;
- mp_msg(MSGT_DECAUDIO,MSGL_V,"A52 flags before a52_frame: 0x%X\n",flags);
- if (a52_frame (&a52_state, sh_audio->a_in_buffer, &flags, &level, bias)){
- mp_msg(MSGT_DECAUDIO,MSGL_ERR,"a52: error decoding frame -> nosound\n");
- return 0;
- }
- mp_msg(MSGT_DECAUDIO,MSGL_V,"A52 flags after a52_frame: 0x%X\n",flags);
- /* frame decoded, let's init resampler:*/
- if(a52_resample_init(a52_accel,flags,sh_audio->channels)) break;
- --sh_audio->channels; /* try to decrease no. of channels*/
-}
- if(sh_audio->channels<=0){
- mp_msg(MSGT_DECAUDIO,MSGL_ERR,"a52: no resampler. try different channel setup!\n");
- return 0;
- }
- return 1;
-}
-
-static void uninit(sh_audio_t *sh)
-{
-}
-
-static int control(sh_audio_t *sh,int cmd,void* arg, ...)
-{
- switch(cmd)
- {
- case ADCTRL_SKIP_FRAME:
- a52_fillbuff(sh); break; // skip AC3 frame
- return CONTROL_TRUE;
- }
- return CONTROL_UNKNOWN;
-}
-
-static int decode_audio(sh_audio_t *sh_audio,unsigned char *buf,int minlen,int maxlen)
-{
- sample_t level=1, bias=384;
- int flags=a52_flags|A52_ADJUST_LEVEL;
- int i,len=-1;
- if(!sh_audio->a_in_buffer_len)
- if(a52_fillbuff(sh_audio)<0) return len; /* EOF */
- sh_audio->a_in_buffer_len=0;
- if (a52_frame (&a52_state, sh_audio->a_in_buffer, &flags, &level, bias)){
- mp_msg(MSGT_DECAUDIO,MSGL_WARN,"a52: error decoding frame\n");
- return len;
- }
- len=0;
- for (i = 0; i < 6; i++) {
- if (a52_block (&a52_state, a52_samples)){
- mp_msg(MSGT_DECAUDIO,MSGL_WARN,"a52: error at resampling\n");
- break;
- }
- len+=2*a52_resample(a52_samples,(int16_t *)&buf[len]);
- }
- return len;
-}