diff options
Diffstat (limited to 'src/libffmpeg/libavcodec/ra144.c')
-rw-r--r-- | src/libffmpeg/libavcodec/ra144.c | 124 |
1 files changed, 62 insertions, 62 deletions
diff --git a/src/libffmpeg/libavcodec/ra144.c b/src/libffmpeg/libavcodec/ra144.c index 79cce2cef..059236dfe 100644 --- a/src/libffmpeg/libavcodec/ra144.c +++ b/src/libffmpeg/libavcodec/ra144.c @@ -14,78 +14,78 @@ * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "avcodec.h" #include "ra144.h" -#define DATABLOCK1 20 /* size of 14.4 input block in bytes */ -#define DATACHUNK1 1440 /* size of 14.4 input chunk in bytes */ -#define AUDIOBLOCK 160 /* size of output block in 16-bit words (320 bytes) */ -#define AUDIOBUFFER 12288 /* size of output buffer in 16-bit words (24576 bytes) */ +#define DATABLOCK1 20 /* size of 14.4 input block in bytes */ +#define DATACHUNK1 1440 /* size of 14.4 input chunk in bytes */ +#define AUDIOBLOCK 160 /* size of output block in 16-bit words (320 bytes) */ +#define AUDIOBUFFER 12288 /* size of output buffer in 16-bit words (24576 bytes) */ /* consts */ -#define NBLOCKS 4 /* number of segments within a block */ -#define BLOCKSIZE 40 /* (quarter) block size in 16-bit words (80 bytes) */ -#define HALFBLOCK 20 /* BLOCKSIZE/2 */ -#define BUFFERSIZE 146 /* for do_output */ +#define NBLOCKS 4 /* number of segments within a block */ +#define BLOCKSIZE 40 /* (quarter) block size in 16-bit words (80 bytes) */ +#define HALFBLOCK 20 /* BLOCKSIZE/2 */ +#define BUFFERSIZE 146 /* for do_output */ /* internal globals */ typedef struct { - unsigned int resetflag, val, oldval; - unsigned int unpacked[28]; /* buffer for unpacked input */ - unsigned int *iptr; /* pointer to current input (from unpacked) */ - unsigned int gval; - unsigned short *gsp; - unsigned int gbuf1[8]; - unsigned short gbuf2[120]; - signed short output_buffer[40]; - unsigned int *decptr; /* decoder ptr */ - signed short *decsp; - - /* the swapped buffers */ - unsigned int swapb1a[10]; - unsigned int swapb2a[10]; - unsigned int swapb1b[10]; - unsigned int swapb2b[10]; - unsigned int *swapbuf1; - unsigned int *swapbuf2; - unsigned int *swapbuf1alt; - unsigned int *swapbuf2alt; - - unsigned int buffer[5]; - unsigned short int buffer_2[148]; - unsigned short int buffer_a[40]; - unsigned short int buffer_b[40]; - unsigned short int buffer_c[40]; - unsigned short int buffer_d[40]; - - unsigned short int work[50]; - unsigned short *sptr; - - int buffer1[10]; - int buffer2[10]; - - signed short wavtable1[2304]; - unsigned short wavtable2[2304]; + unsigned int resetflag, val, oldval; + unsigned int unpacked[28]; /* buffer for unpacked input */ + unsigned int *iptr; /* pointer to current input (from unpacked) */ + unsigned int gval; + unsigned short *gsp; + unsigned int gbuf1[8]; + unsigned short gbuf2[120]; + signed short output_buffer[40]; + unsigned int *decptr; /* decoder ptr */ + signed short *decsp; + + /* the swapped buffers */ + unsigned int swapb1a[10]; + unsigned int swapb2a[10]; + unsigned int swapb1b[10]; + unsigned int swapb2b[10]; + unsigned int *swapbuf1; + unsigned int *swapbuf2; + unsigned int *swapbuf1alt; + unsigned int *swapbuf2alt; + + unsigned int buffer[5]; + unsigned short int buffer_2[148]; + unsigned short int buffer_a[40]; + unsigned short int buffer_b[40]; + unsigned short int buffer_c[40]; + unsigned short int buffer_d[40]; + + unsigned short int work[50]; + unsigned short *sptr; + + int buffer1[10]; + int buffer2[10]; + + signed short wavtable1[2304]; + unsigned short wavtable2[2304]; } Real144_internal; static int ra144_decode_init(AVCodecContext * avctx) { - Real144_internal *glob=avctx->priv_data; + Real144_internal *glob=avctx->priv_data; - memset(glob,0,sizeof(Real144_internal)); - glob->resetflag=1; - glob->swapbuf1=glob->swapb1a; - glob->swapbuf2=glob->swapb2a; - glob->swapbuf1alt=glob->swapb1b; - glob->swapbuf2alt=glob->swapb2b; + memset(glob,0,sizeof(Real144_internal)); + glob->resetflag=1; + glob->swapbuf1=glob->swapb1a; + glob->swapbuf2=glob->swapb2a; + glob->swapbuf1alt=glob->swapb1b; + glob->swapbuf2alt=glob->swapb2b; - memcpy(glob->wavtable1,wavtable1,sizeof(wavtable1)); - memcpy(glob->wavtable2,wavtable2,sizeof(wavtable2)); + memcpy(glob->wavtable1,wavtable1,sizeof(wavtable1)); + memcpy(glob->wavtable2,wavtable2,sizeof(wavtable2)); - return 0; + return 0; } static void final(Real144_internal *glob, short *i1, short *i2, void *out, int *statbuf, int len); @@ -107,10 +107,10 @@ static void do_voice(int *a1, int *a2) int *b1,*b2; int x,y; int *ptr,*tmp; - + b1=buffer; b2=a2; - + for (x=0;x<10;x++) { b1[x]=(*a1)<<4; @@ -123,7 +123,7 @@ static void do_voice(int *a1, int *a2) b1=b2; b2=tmp; a1++; - } + } ptr=a2+10; while (ptr>a2) (*a2++)>>=4; } @@ -190,7 +190,7 @@ static void add_wav(Real144_internal *glob, int n, int f, int m1, int m2, int m3 ptr=glob->wavtable1+n*9; ptr2=glob->wavtable2+n*9; if (f!=0) { - a=((*ptr)*m1)>>((*ptr2)+1); + a=((*ptr)*m1)>>((*ptr2)+1); } else { a=0; } @@ -299,7 +299,7 @@ static void unpack_input(unsigned char *input, unsigned int *output) *(output++)=ptr[x]; *(output++)=ptr[x+2]; *(output++)=ptr[x+3]; - *(output++)=ptr[x+1]; + *(output++)=ptr[x+1]; } } @@ -438,10 +438,10 @@ static int ra144_decode_frame(AVCodecContext * avctx, if(buf_size==0) return 0; - + datao = data; unpack_input(buf,glob->unpacked); - + glob->iptr=glob->unpacked; glob->val=decodetable[0][(*(glob->iptr++))<<1]; |