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author | 2002-08-30 19:49:37 +0000 | |
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committer | 2002-08-30 19:49:37 +0000 | |
commit | 280267c9026fdba1e425edbd9ae7d39af3868e1b (patch) | |
tree | e3074f102e0f60c98ebff9e6d70754d6191f6cdc /libmpcodecs/ad_a52.c | |
parent | 9f34ada84e3625dc08b15334d9e5d0b98f2d8ccc (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.c | 192 |
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; -} |