mirror of
https://github.com/game-stop/veejay.git
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317 lines
7.1 KiB
C
317 lines
7.1 KiB
C
/* veejay - Linux VeeJay
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* (C) 2002-2006 Niels Elburg <nwelburg@gmail.com>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <libvje/vje.h>
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#include <libvjmem/vjmem.h>
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#include <libvjmsg/vj-msg.h>
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#include <liblzo/lzo.h>
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#include <libyuv/yuvconv.h>
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#include <liblzo/lzoconf.h>
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#include <liblzo/minilzo.h>
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#ifdef STRICT_CHECKING
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#include <assert.h>
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#endif
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typedef struct
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{
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lzo_byte *wrkmem;
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uint8_t *tmp[3];
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} lzot;
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void lzo_free( void *lzo )
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{
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lzot *l = (lzot*) lzo;
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if(l)
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{
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if(l->wrkmem)
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free(l->wrkmem);
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if(l->tmp[0])
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free(l->tmp[0]);
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free(l);
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}
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l = NULL;
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}
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void *lzo_new( )
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{
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lzot *l = (lzot*) vj_calloc(sizeof(lzot));
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if (lzo_init() != LZO_E_OK)
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{
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veejay_msg(VEEJAY_MSG_ERROR, "Unable to initialize LZO. Could be buggy compiler");
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free( l );
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return NULL;
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}
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l->wrkmem = (lzo_bytep)
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vj_calloc( LZO1X_1_MEM_COMPRESS );
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if(l->wrkmem == NULL )
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{
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veejay_msg(VEEJAY_MSG_ERROR, "Cannot allocate work memory for LZO1X_1");
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if(l) free(l);
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return NULL;
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}
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veejay_msg(VEEJAY_MSG_DEBUG,"LZO real-time data compression library (v%s, %s).",
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lzo_version_string(), lzo_version_date());
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l->tmp[0] = NULL;
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l->tmp[1] = NULL;
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l->tmp[2] = NULL;
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return (void*) l;
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}
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static uint32_t str2ulong(unsigned char *str)
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{
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return ( str[0] | (str[1]<<8) | (str[2]<<16) | (str[3]<<24) );
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}
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int lzo_compress( void *lzo, uint8_t *src, uint8_t *plane, unsigned int *size, int ilen )
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{
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lzo_uint out_len =0;
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lzo_uint len = ilen;
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lzot *l = (lzot*) lzo;
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lzo_bytep dst = plane;
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lzo_uintp dst_len = (lzo_uintp) size;
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lzo_voidp wrkmem = l->wrkmem;
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int r = lzo1x_1_compress( src, len, dst, dst_len, wrkmem );
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if( r != LZO_E_OK )
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return 0;
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return (*size);
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}
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long lzo_decompress_el( void *lzo, uint8_t *linbuf, int linbuf_len, uint8_t *dst[3], int uv_len)
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{
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unsigned int i;
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lzo_uint len[3] = { 0,0,0};
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unsigned int mode = 0;
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unsigned int sum = 0;
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lzot *l = (lzot*) lzo;
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lzo_uint result_len = 0;
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lzo_uint offset = 16;
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len[0] = str2ulong( linbuf );
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len[1] = str2ulong( linbuf+4 );
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len[2] = str2ulong( linbuf+8 );
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mode = str2ulong( linbuf+12 );
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if(len[1] ==0 && len[2] == 0 )
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mode = 1;
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for( i = 0; i < 3; i ++ )
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{
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if( len[i] <= 0 )
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continue;
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const lzo_bytep src = (lzo_bytep) (linbuf+offset);
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int r = lzo1x_decompress( src, len[i], dst[i], &result_len, l->wrkmem );
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if( r != LZO_E_OK )
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return 0;
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sum += result_len;
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offset += len[i];
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result_len = 0;
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}
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if(mode == 1) {
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veejay_memset( dst[1],128, uv_len );
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veejay_memset( dst[2],128, uv_len );
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}
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return (long)sum;
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}
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long lzo_decompress( void *lzo, uint8_t *linbuf, int linbuf_len, uint8_t *dst[3], int uv_len,
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uint32_t stride1, uint32_t stride2, uint32_t stride3 )
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{
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unsigned int i;
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lzo_uint len[3] = { 0,0,0};
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unsigned int mode = 0;
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unsigned int sum = 0;
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lzot *l = (lzot*) lzo;
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lzo_uint result_len = 0;
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lzo_uint offset = 16;
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len[0] = str2ulong( linbuf );
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len[1] = str2ulong( linbuf+4 );
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len[2] = str2ulong( linbuf+8 );
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mode = str2ulong( linbuf+12 );
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if( len[0] != stride1 || len[1] != stride2 || len[2] != stride3 ) {
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veejay_msg(0, "Data corruption.");
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return 0;
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}
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len[0] = stride1;
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len[1] = stride2;
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len[2] = stride3;
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if(len[1] ==0 && len[2] == 0 )
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mode = 1;
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for( i = 0; i < 3; i ++ )
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{
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if( len[i] <= 0 )
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continue;
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const lzo_bytep src = (lzo_bytep) (linbuf+offset);
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int r = lzo1x_decompress( src, len[i], dst[i], &result_len, l->wrkmem );
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if( r != LZO_E_OK )
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return 0;
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sum += result_len;
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offset += len[i];
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result_len = 0;
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}
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if(mode == 1) {
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veejay_memset( dst[1],128, uv_len );
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veejay_memset( dst[2],128, uv_len );
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}
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return (long)sum;
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}
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long lzo_decompress422into420( void *lzo, uint8_t *linbuf, int linbuf_len, uint8_t *dst[3], int w, int h,
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uint32_t stride1, uint32_t stride2, uint32_t stride3 )
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{
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int i;
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lzo_uint len[3] = { 0,0,0};
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int sum = 0;
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int mode = 0;
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lzot *l = (lzot*) lzo;
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lzo_uint result_len = 0;
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lzo_uint offset = 16;
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len[0] = str2ulong( linbuf );
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len[1] = str2ulong( linbuf+4 );
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len[2] = str2ulong( linbuf+8 );
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mode = str2ulong( linbuf+12 );
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if( len[0] != stride1 || len[1] != stride2 || len[2] != stride3 ) {
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veejay_msg(0, "Data corruption.");
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return 0;
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}
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len[0] = stride1;
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len[1] = stride2;
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len[2] = stride3;
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/*
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len[0] = str2ulong( linbuf );
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len[1] = str2ulong( linbuf+4 );
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len[2] = str2ulong( linbuf+8 );
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mode = str2ulong( linbuf+12 );
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*/
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if(len[1] ==0 && len[2] == 0 )
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mode = 1;
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if( l->tmp[0] == NULL ) {
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l->tmp[0] = vj_malloc(sizeof(uint8_t) * w * h * 3); // will do
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l->tmp[1] = l->tmp[0] + w * h;
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l->tmp[2] = l->tmp[1] + ( (w>>1)*h);
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}
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for( i = 0; i <= 2; i ++ )
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{
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if(len[i] <= 0)
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continue;
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const lzo_bytep src = (lzo_bytep) (linbuf+offset);
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int r = lzo1x_decompress( src, len[i], l->tmp[i], &result_len, l->wrkmem );
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if( r != LZO_E_OK )
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return 0;
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sum += result_len;
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offset += len[i];
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}
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veejay_memcpy( dst[0], l->tmp[0], w*h);
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if( mode == 1 ) {
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veejay_memset(dst[1],128,( (w>>1)*h));
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veejay_memset(dst[2],128,( (w>>1)*h));
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} else {
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yuv422to420planar( l->tmp, dst, w, h );
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}
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return (long)sum;
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}
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long lzo_decompress420into422( void *lzo, uint8_t *linbuf, int linbuf_len, uint8_t *dst[3], int w, int h )
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{
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int i;
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lzo_uint len[3] = { 0,0,0};
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int sum = 0;
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int mode= 0;
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lzot *l = (lzot*) lzo;
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lzo_uint result_len = 0;
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lzo_uint offset = 16;
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len[0] = str2ulong( linbuf );
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len[1] = str2ulong( linbuf+4 );
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len[2] = str2ulong( linbuf+8 );
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mode = str2ulong( linbuf+12 );
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if( l->tmp[0] == NULL ) {
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l->tmp[0] = vj_malloc(sizeof(uint8_t) * w * h * 3); // will do
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l->tmp[1] = l->tmp[0] + ( w * h );
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l->tmp[2] = l->tmp[1] + ( (w>>1) * (h>>1));
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}
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for( i = 0; i <= 2; i ++ )
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{
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if( len[i] <= 0 )
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continue;
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const lzo_bytep src = (lzo_bytep) (linbuf+offset);
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int r = lzo1x_decompress( src, len[i], l->tmp[i], &result_len, l->wrkmem );
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if( r != LZO_E_OK )
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return 0;
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sum += result_len;
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offset += len[i];
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}
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veejay_memcpy( dst[0], l->tmp[0], w*h);
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if(mode == 1) {
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veejay_memset(dst[1],128,( (w>>1)*h));
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veejay_memset(dst[2],128,( (w>>1)*h));
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}
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else {
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yuv420to422planar( l->tmp, dst, w, h );
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}
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return (long)sum;
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}
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long lzo_decompress2( void *lzo, uint8_t *linbuf, int linbuf_len, uint8_t *dst )
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{
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lzo_uint len = linbuf_len;
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lzot *l = (lzot*) lzo;
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lzo_uint result_len = 0;
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const lzo_bytep src = (lzo_bytep) linbuf;
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int r = lzo1x_decompress( src, len, dst, &result_len, l->wrkmem );
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if( r != LZO_E_OK )
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return 0;
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return (long)result_len;
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}
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