diff options
Diffstat (limited to 'src/libffmpeg/libavcodec/vcr1.c')
| -rw-r--r-- | src/libffmpeg/libavcodec/vcr1.c | 190 |
1 files changed, 0 insertions, 190 deletions
diff --git a/src/libffmpeg/libavcodec/vcr1.c b/src/libffmpeg/libavcodec/vcr1.c deleted file mode 100644 index 62bf12320..000000000 --- a/src/libffmpeg/libavcodec/vcr1.c +++ /dev/null @@ -1,190 +0,0 @@ -/* - * ATI VCR1 codec - * Copyright (c) 2003 Michael Niedermayer - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -/** - * @file vcr1.c - * ati vcr1 codec. - */ - -#include "avcodec.h" -#include "mpegvideo.h" - -//#undef NDEBUG -//#include <assert.h> - -typedef struct VCR1Context{ - AVCodecContext *avctx; - AVFrame picture; - int delta[16]; - int offset[4]; -} VCR1Context; - -static int decode_frame(AVCodecContext *avctx, - void *data, int *data_size, - uint8_t *buf, int buf_size) -{ - VCR1Context * const a = avctx->priv_data; - AVFrame *picture = data; - AVFrame * const p= (AVFrame*)&a->picture; - uint8_t *bytestream= buf; - int i, x, y; - - if(p->data[0]) - avctx->release_buffer(avctx, p); - - p->reference= 0; - if(avctx->get_buffer(avctx, p) < 0){ - av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); - return -1; - } - p->pict_type= I_TYPE; - p->key_frame= 1; - - for(i=0; i<16; i++){ - a->delta[i]= *(bytestream++); - bytestream++; - } - - for(y=0; y<avctx->height; y++){ - int offset; - uint8_t *luma= &a->picture.data[0][ y*a->picture.linesize[0] ]; - - if((y&3) == 0){ - uint8_t *cb= &a->picture.data[1][ (y>>2)*a->picture.linesize[1] ]; - uint8_t *cr= &a->picture.data[2][ (y>>2)*a->picture.linesize[2] ]; - - for(i=0; i<4; i++) - a->offset[i]= *(bytestream++); - - offset= a->offset[0] - a->delta[ bytestream[2]&0xF ]; - for(x=0; x<avctx->width; x+=4){ - luma[0]=( offset += a->delta[ bytestream[2]&0xF ]); - luma[1]=( offset += a->delta[ bytestream[2]>>4 ]); - luma[2]=( offset += a->delta[ bytestream[0]&0xF ]); - luma[3]=( offset += a->delta[ bytestream[0]>>4 ]); - luma += 4; - - *(cb++) = bytestream[3]; - *(cr++) = bytestream[1]; - - bytestream+= 4; - } - }else{ - offset= a->offset[y&3] - a->delta[ bytestream[2]&0xF ]; - - for(x=0; x<avctx->width; x+=8){ - luma[0]=( offset += a->delta[ bytestream[2]&0xF ]); - luma[1]=( offset += a->delta[ bytestream[2]>>4 ]); - luma[2]=( offset += a->delta[ bytestream[3]&0xF ]); - luma[3]=( offset += a->delta[ bytestream[3]>>4 ]); - luma[4]=( offset += a->delta[ bytestream[0]&0xF ]); - luma[5]=( offset += a->delta[ bytestream[0]>>4 ]); - luma[6]=( offset += a->delta[ bytestream[1]&0xF ]); - luma[7]=( offset += a->delta[ bytestream[1]>>4 ]); - luma += 8; - bytestream+= 4; - } - } - } - - *picture= *(AVFrame*)&a->picture; - *data_size = sizeof(AVPicture); - - emms_c(); - - return buf_size; -} - -#if 0 -static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){ - VCR1Context * const a = avctx->priv_data; - AVFrame *pict = data; - AVFrame * const p= (AVFrame*)&a->picture; - int size; - int mb_x, mb_y; - - *p = *pict; - p->pict_type= I_TYPE; - p->key_frame= 1; - - emms_c(); - - align_put_bits(&a->pb); - while(get_bit_count(&a->pb)&31) - put_bits(&a->pb, 8, 0); - - size= get_bit_count(&a->pb)/32; - - return size*4; -} -#endif - -static void common_init(AVCodecContext *avctx){ - VCR1Context * const a = avctx->priv_data; - - avctx->coded_frame= (AVFrame*)&a->picture; - a->avctx= avctx; -} - -static int decode_init(AVCodecContext *avctx){ - - common_init(avctx); - - avctx->pix_fmt= PIX_FMT_YUV410P; - - return 0; -} - -#if 0 -static int encode_init(AVCodecContext *avctx){ - - common_init(avctx); - - return 0; -} -#endif - -AVCodec vcr1_decoder = { - "vcr1", - CODEC_TYPE_VIDEO, - CODEC_ID_VCR1, - sizeof(VCR1Context), - decode_init, - NULL, - NULL, - decode_frame, - CODEC_CAP_DR1, -}; -#if 0 -#ifdef CONFIG_ENCODERS - -AVCodec vcr1_encoder = { - "vcr1", - CODEC_TYPE_VIDEO, - CODEC_ID_VCR1, - sizeof(VCR1Context), - encode_init, - encode_frame, - //encode_end, -}; - -#endif //CONFIG_ENCODERS -#endif |