diff options
author | Diego Biurrun <diego@biurrun.de> | 2005-12-17 18:14:38 +0000 |
---|---|---|
committer | Diego Biurrun <diego@biurrun.de> | 2005-12-17 18:14:38 +0000 |
commit | 115329f16062074e11ccf3b89ead6176606c9696 (patch) | |
tree | e98aa993905a702688bf821737ab9a443969fc28 /libavcodec/dv.c | |
parent | d76319b1ab716320f6e6a4d690b85fe4504ebd5b (diff) | |
download | ffmpeg-115329f16062074e11ccf3b89ead6176606c9696.tar.gz |
COSMETICS: Remove all trailing whitespace.
Originally committed as revision 4749 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/dv.c')
-rw-r--r-- | libavcodec/dv.c | 156 |
1 files changed, 78 insertions, 78 deletions
diff --git a/libavcodec/dv.c b/libavcodec/dv.c index 09fb77299d..7adaac648e 100644 --- a/libavcodec/dv.c +++ b/libavcodec/dv.c @@ -3,7 +3,7 @@ * Copyright (c) 2002 Fabrice Bellard. * Copyright (c) 2004 Roman Shaposhnik. * - * DV encoder + * DV encoder * Copyright (c) 2003 Roman Shaposhnik. * * Many thanks to Dan Dennedy <dan@dennedy.org> for providing wealth @@ -42,10 +42,10 @@ typedef struct DVVideoContext { AVFrame picture; AVCodecContext *avctx; uint8_t *buf; - + uint8_t dv_zigzag[2][64]; uint8_t dv_idct_shift[2][2][22][64]; - + void (*get_pixels)(DCTELEM *block, const uint8_t *pixels, int line_size); void (*fdct[2])(DCTELEM *block); void (*idct_put[2])(uint8_t *dest, int line_size, DCTELEM *block); @@ -57,7 +57,7 @@ typedef struct DVVideoContext { #define DV_VLC_MAP_RUN_SIZE 15 #define DV_VLC_MAP_LEV_SIZE 23 #else -#define DV_VLC_MAP_RUN_SIZE 64 +#define DV_VLC_MAP_RUN_SIZE 64 #define DV_VLC_MAP_LEV_SIZE 512 //FIXME sign was removed so this should be /2 but needs check #endif @@ -86,11 +86,11 @@ static void dv_build_unquantize_tables(DVVideoContext *s, uint8_t* perm) dv_quant_shifts[q][dv_88_areas[i]] + 1; s->dv_idct_shift[1][0][q][j] = s->dv_idct_shift[0][0][q][j] + 1; } - + /* 248DCT */ for(i = 1; i < 64; i++) { /* 248 table */ - s->dv_idct_shift[0][1][q][i] = + s->dv_idct_shift[0][1][q][i] = dv_quant_shifts[q][dv_248_areas[i]] + 1; s->dv_idct_shift[1][1][q][i] = s->dv_idct_shift[0][1][q][i] + 1; } @@ -131,7 +131,7 @@ static int dvvideo_init(AVCodecContext *avctx) new_dv_vlc_len[j] = dv_vlc_len[i]; new_dv_vlc_run[j] = dv_vlc_run[i]; new_dv_vlc_level[j] = dv_vlc_level[i]; - + if (dv_vlc_level[i]) { new_dv_vlc_bits[j] <<= 1; new_dv_vlc_len[j]++; @@ -143,10 +143,10 @@ static int dvvideo_init(AVCodecContext *avctx) new_dv_vlc_level[j] = -dv_vlc_level[i]; } } - + /* NOTE: as a trick, we use the fact the no codes are unused to accelerate the parsing of partial codes */ - init_vlc(&dv_vlc, TEX_VLC_BITS, j, + init_vlc(&dv_vlc, TEX_VLC_BITS, j, new_dv_vlc_len, 1, 1, new_dv_vlc_bits, 2, 2, 0); dv_rl_vlc = av_malloc(dv_vlc.table_size * sizeof(RL_VLC_ELEM)); @@ -158,7 +158,7 @@ static int dvvideo_init(AVCodecContext *avctx) int code= dv_vlc.table[i][0]; int len = dv_vlc.table[i][1]; int level, run; - + if(len<0){ //more bits needed run= 0; level= code; @@ -179,13 +179,13 @@ static int dvvideo_init(AVCodecContext *avctx) if (dv_vlc_level[i] >= DV_VLC_MAP_LEV_SIZE) continue; #endif - + if (dv_vlc_map[dv_vlc_run[i]][dv_vlc_level[i]].size != 0) continue; - - dv_vlc_map[dv_vlc_run[i]][dv_vlc_level[i]].vlc = dv_vlc_bits[i] << + + dv_vlc_map[dv_vlc_run[i]][dv_vlc_level[i]].vlc = dv_vlc_bits[i] << (!!dv_vlc_level[i]); - dv_vlc_map[dv_vlc_run[i]][dv_vlc_level[i]].size = dv_vlc_len[i] + + dv_vlc_map[dv_vlc_run[i]][dv_vlc_level[i]].size = dv_vlc_len[i] + (!!dv_vlc_level[i]); } for (i = 0; i < DV_VLC_MAP_RUN_SIZE; i++) { @@ -194,7 +194,7 @@ static int dvvideo_init(AVCodecContext *avctx) if (dv_vlc_map[i][j].size == 0) { dv_vlc_map[i][j].vlc = dv_vlc_map[0][j].vlc | (dv_vlc_map[i-1][0].vlc << (dv_vlc_map[0][j].size)); - dv_vlc_map[i][j].size = dv_vlc_map[i-1][0].size + + dv_vlc_map[i][j].size = dv_vlc_map[i-1][0].size + dv_vlc_map[0][j].size; } } @@ -203,12 +203,12 @@ static int dvvideo_init(AVCodecContext *avctx) if (dv_vlc_map[i][j].size == 0) { dv_vlc_map[i][j].vlc = dv_vlc_map[0][j].vlc | (dv_vlc_map[i-1][0].vlc << (dv_vlc_map[0][j].size)); - dv_vlc_map[i][j].size = dv_vlc_map[i-1][0].size + + dv_vlc_map[i][j].size = dv_vlc_map[i-1][0].size + dv_vlc_map[0][j].size; } - dv_vlc_map[i][((uint16_t)(-j))&0x1ff].vlc = + dv_vlc_map[i][((uint16_t)(-j))&0x1ff].vlc = dv_vlc_map[i][j].vlc | 1; - dv_vlc_map[i][((uint16_t)(-j))&0x1ff].size = + dv_vlc_map[i][((uint16_t)(-j))&0x1ff].size = dv_vlc_map[i][j].size; } #endif @@ -241,10 +241,10 @@ static int dvvideo_init(AVCodecContext *avctx) /* FIXME: I really don't think this should be here */ if (dv_codec_profile(avctx)) - avctx->pix_fmt = dv_codec_profile(avctx)->pix_fmt; + avctx->pix_fmt = dv_codec_profile(avctx)->pix_fmt; avctx->coded_frame = &s->picture; s->avctx= avctx; - + return 0; } @@ -268,7 +268,7 @@ static const uint16_t block_sizes[6] = { /* bit budget for AC only in 5 MBs */ static const int vs_total_ac_bits = (100 * 4 + 68*2) * 5; /* see dv_88_areas and dv_248_areas for details */ -static const int mb_area_start[5] = { 1, 6, 21, 43, 64 }; +static const int mb_area_start[5] = { 1, 6, 21, 43, 64 }; #ifndef ALT_BITSTREAM_READER #warning only works with ALT_BITSTREAM_READER @@ -299,10 +299,10 @@ static void dv_decode_ac(GetBitContext *gb, BlockInfo *mb, DCTELEM *block) int pos = mb->pos; int partial_bit_count = mb->partial_bit_count; int level, pos1, run, vlc_len, index; - + OPEN_READER(re, gb); UPDATE_CACHE(re, gb); - + /* if we must parse a partial vlc, we do it here */ if (partial_bit_count > 0) { re_cache = ((unsigned)re_cache >> partial_bit_count) | @@ -325,7 +325,7 @@ static void dv_decode_ac(GetBitContext *gb, BlockInfo *mb, DCTELEM *block) } level = dv_rl_vlc[index].level; run = dv_rl_vlc[index].run; - + /* gotta check if we're still within gb boundaries */ if (re_index + vlc_len > last_index) { /* should be < 16 bits otherwise a codeword could have been parsed */ @@ -339,10 +339,10 @@ static void dv_decode_ac(GetBitContext *gb, BlockInfo *mb, DCTELEM *block) #ifdef VLC_DEBUG printf("run=%d level=%d\n", run, level); #endif - pos += run; + pos += run; if (pos >= 64) break; - + assert(level); pos1 = scan_table[pos]; block[pos1] = level << shift_table[pos1]; @@ -366,8 +366,8 @@ static inline void bit_copy(PutBitContext *pb, GetBitContext *gb) } /* mb_x and mb_y are in units of 8 pixels */ -static inline void dv_decode_video_segment(DVVideoContext *s, - uint8_t *buf_ptr1, +static inline void dv_decode_video_segment(DVVideoContext *s, + uint8_t *buf_ptr1, const uint16_t *mb_pos_ptr) { int quant, dc, dct_mode, class1, j; @@ -384,10 +384,10 @@ static inline void dv_decode_video_segment(DVVideoContext *s, uint8_t mb_bit_buffer[80 + 4] __align8; /* allow some slack */ uint8_t vs_bit_buffer[5 * 80 + 4] __align8; /* allow some slack */ const int log2_blocksize= 3-s->avctx->lowres; - + assert((((int)mb_bit_buffer)&7)==0); assert((((int)vs_bit_buffer)&7)==0); - + memset(sblock, 0, sizeof(sblock)); /* pass 1 : read DC and AC coefficients in blocks */ @@ -405,7 +405,7 @@ static inline void dv_decode_video_segment(DVVideoContext *s, for(j = 0;j < 6; j++) { last_index = block_sizes[j]; init_get_bits(&gb, buf_ptr, last_index); - + /* get the dc */ dc = get_sbits(&gb, 9); dct_mode = get_bits1(&gb); @@ -432,11 +432,11 @@ static inline void dv_decode_video_segment(DVVideoContext *s, block is finished */ if (mb->pos >= 64) bit_copy(&pb, &gb); - + block += 64; mb++; } - + /* pass 2 : we can do it just after */ #ifdef VLC_DEBUG printf("***pass 2 size=%d MB#=%d\n", put_bits_count(&pb), mb_index); @@ -481,7 +481,7 @@ static inline void dv_decode_video_segment(DVVideoContext *s, mb++; } } - + /* compute idct and place blocks */ block = &sblock[0][0]; mb = mb_data; @@ -526,7 +526,7 @@ static inline void dv_decode_video_segment(DVVideoContext *s, } } else { /* don't ask me why they inverted Cb and Cr ! */ - idct_put(s->picture.data[6 - j] + c_offset, + idct_put(s->picture.data[6 - j] + c_offset, s->picture.linesize[6 - j], block); } } @@ -545,7 +545,7 @@ static always_inline int dv_rl2vlc(int run, int level, int sign, uint32_t* vlc) *vlc = dv_vlc_map[run][level].vlc | sign; size = dv_vlc_map[run][level].size; } - else { + else { if (level < DV_VLC_MAP_LEV_SIZE) { *vlc = dv_vlc_map[0][level].vlc | sign; size = dv_vlc_map[0][level].size; @@ -554,23 +554,23 @@ static always_inline int dv_rl2vlc(int run, int level, int sign, uint32_t* vlc) size = 16; } if (run) { - *vlc |= ((run < 16) ? dv_vlc_map[run-1][0].vlc : + *vlc |= ((run < 16) ? dv_vlc_map[run-1][0].vlc : (0x1f80 | (run - 1))) << size; size += (run < 16) ? dv_vlc_map[run-1][0].size : 13; } } - + return size; } static always_inline int dv_rl2vlc_size(int run, int level) { int size; - + if (run < DV_VLC_MAP_RUN_SIZE && level < DV_VLC_MAP_LEV_SIZE) { - size = dv_vlc_map[run][level].size; + size = dv_vlc_map[run][level].size; } - else { + else { size = (level < DV_VLC_MAP_LEV_SIZE) ? dv_vlc_map[0][level].size : 16; if (run) { size += (run < 16) ? dv_vlc_map[run-1][0].size : 13; @@ -605,7 +605,7 @@ typedef struct EncBlockInfo { uint32_t partial_bit_buffer; /* we can't use uint16_t here */ } EncBlockInfo; -static always_inline PutBitContext* dv_encode_ac(EncBlockInfo* bi, PutBitContext* pb_pool, +static always_inline PutBitContext* dv_encode_ac(EncBlockInfo* bi, PutBitContext* pb_pool, PutBitContext* pb_end) { int prev; @@ -629,13 +629,13 @@ static always_inline PutBitContext* dv_encode_ac(EncBlockInfo* bi, PutBitContext return pb; } } - + /* Store VLC */ put_bits(pb, size, vlc); - + if(bi->cur_ac>=64) break; - + /* Construct the next VLC */ prev= bi->cur_ac; bi->cur_ac = bi->next[prev]; @@ -648,7 +648,7 @@ static always_inline PutBitContext* dv_encode_ac(EncBlockInfo* bi, PutBitContext return pb; } -static always_inline void dv_set_class_number(DCTELEM* blk, EncBlockInfo* bi, +static always_inline void dv_set_class_number(DCTELEM* blk, EncBlockInfo* bi, const uint8_t* zigzag_scan, int bias) { int i, area; @@ -656,14 +656,14 @@ static always_inline void dv_set_class_number(DCTELEM* blk, EncBlockInfo* bi, int max=12; int prev=0; - bi->mb[0] = blk[0]; - + bi->mb[0] = blk[0]; + for (area = 0; area < 4; area++) { bi->prev[area] = prev; bi->bit_size[area] = 1; // 4 areas 4 bits for EOB :) for (i=mb_area_start[area]; i<mb_area_start[area+1]; i++) { int level = blk[zigzag_scan[i]]; - + if (level+15 > 30U) { bi->sign[i] = (level>>31)&1; bi->mb[i] = level= ABS(level)>>4; @@ -678,7 +678,7 @@ static always_inline void dv_set_class_number(DCTELEM* blk, EncBlockInfo* bi, for(bi->cno = 0; max > classes[bi->cno]; bi->cno++); bi->cno += bias; - + if (bi->cno >= 3) { bi->cno = 3; prev=0; @@ -688,7 +688,7 @@ static always_inline void dv_set_class_number(DCTELEM* blk, EncBlockInfo* bi, bi->bit_size[area] = 1; // 4 areas 4 bits for EOB :) for (; i<mb_area_start[area+1]; i= bi->next[i]) { bi->mb[i] >>=1; - + if (bi->mb[i]) { bi->bit_size[area] += dv_rl2vlc_size(i - prev - 1, bi->mb[i]); bi->next[prev]= i; @@ -707,11 +707,11 @@ static always_inline int dv_guess_dct_mode(DCTELEM *blk) { int score88 = 0; int score248 = 0; int i; - + /* Compute 8-8 score (small values give a better chance for 8-8 DCT) */ s = blk; for(i=0; i<7; i++) { - score88 += SC(0, 8) + SC(1, 9) + SC(2, 10) + SC(3, 11) + + score88 += SC(0, 8) + SC(1, 9) + SC(2, 10) + SC(3, 11) + SC(4, 12) + SC(5,13) + SC(6, 14) + SC(7, 15); s += 8; } @@ -737,7 +737,7 @@ static inline void dv_guess_qnos(EncBlockInfo* blks, int* qnos) for (i=0; i<5; i++) { if (!qnos[i]) continue; - + qnos[i]--; size[i] = 0; for (j=0; j<6; j++, b++) { @@ -761,21 +761,21 @@ static inline void dv_guess_qnos(EncBlockInfo* blks, int* qnos) } } } - } while ((vs_total_ac_bits < size[0] + size[1] + size[2] + size[3] + size[4]) && + } while ((vs_total_ac_bits < size[0] + size[1] + size[2] + size[3] + size[4]) && (qnos[0]|qnos[1]|qnos[2]|qnos[3]|qnos[4])); } /* * This is a very rough initial implementaion. The performance is - * horrible and the weighting is missing. But it's missing from the + * horrible and the weighting is missing. But it's missing from the * decoding step also -- so at least we're on the same page with decoder ;-) */ -static inline void dv_encode_video_segment(DVVideoContext *s, - uint8_t *dif, +static inline void dv_encode_video_segment(DVVideoContext *s, + uint8_t *dif, const uint16_t *mb_pos_ptr) { int mb_index, i, j, v; - int mb_x, mb_y, c_offset, linesize; + int mb_x, mb_y, c_offset, linesize; uint8_t* y_ptr; uint8_t* data; uint8_t* ptr; @@ -783,13 +783,13 @@ static inline void dv_encode_video_segment(DVVideoContext *s, DCTELEM block[64] __align8; EncBlockInfo enc_blks[5*6]; PutBitContext pbs[5*6]; - PutBitContext* pb; + PutBitContext* pb; EncBlockInfo* enc_blk; int vs_bit_size = 0; int qnos[5]; - + assert((((int)block) & 7) == 0); - + enc_blk = &enc_blks[0]; pb = &pbs[0]; for(mb_index = 0; mb_index < 5; mb_index++) { @@ -818,8 +818,8 @@ static inline void dv_encode_video_segment(DVVideoContext *s, linesize = s->picture.linesize[6 - j]; if (s->sys->pix_fmt == PIX_FMT_YUV411P && mb_x >= (704 / 8)) do_edge_wrap = 1; - } - + } + /* Everything is set up -- now just copy data -> DCT block */ if (do_edge_wrap) { /* Edge wrap copy: 4x16 -> 8x8 */ uint8_t* d; @@ -834,7 +834,7 @@ static inline void dv_encode_video_segment(DVVideoContext *s, } else { /* Simple copy: 8x8 -> 8x8 */ s->get_pixels(block, data, linesize); } - + if(s->avctx->flags & CODEC_FLAG_INTERLACED_DCT) enc_blk->dct_mode = dv_guess_dct_mode(block); else @@ -843,17 +843,17 @@ static inline void dv_encode_video_segment(DVVideoContext *s, enc_blk->partial_bit_count = 0; enc_blk->partial_bit_buffer = 0; enc_blk->cur_ac = 0; - + s->fdct[enc_blk->dct_mode](block); - - dv_set_class_number(block, enc_blk, + + dv_set_class_number(block, enc_blk, enc_blk->dct_mode ? ff_zigzag248_direct : ff_zigzag_direct, j/4); - + init_put_bits(pb, ptr, block_sizes[j]/8); put_bits(pb, 9, (uint16_t)(((enc_blk->mb[0] >> 3) - 1024 + 2) >> 2)); put_bits(pb, 1, enc_blk->dct_mode); put_bits(pb, 2, enc_blk->cno); - + vs_bit_size += enc_blk->bit_size[0] + enc_blk->bit_size[1] + enc_blk->bit_size[2] + enc_blk->bit_size[3]; ++enc_blk; @@ -913,19 +913,19 @@ static int dv_encode_mt(AVCodecContext *avctx, void* sl) /* NOTE: exactly one frame must be given (120000 bytes for NTSC, 144000 bytes for PAL) */ -static int dvvideo_decode_frame(AVCodecContext *avctx, +static int dvvideo_decode_frame(AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size) { DVVideoContext *s = avctx->priv_data; - + s->sys = dv_frame_profile(buf); if (!s->sys || buf_size < s->sys->frame_size) return -1; /* NOTE: we only accept several full frames */ if(s->picture.data[0]) avctx->release_buffer(avctx, &s->picture); - + s->picture.reference = 0; s->picture.key_frame = 1; s->picture.pict_type = FF_I_TYPE; @@ -939,19 +939,19 @@ static int dvvideo_decode_frame(AVCodecContext *avctx, s->picture.top_field_first = 0; s->buf = buf; - avctx->execute(avctx, dv_decode_mt, (void**)&dv_anchor[0], NULL, + avctx->execute(avctx, dv_decode_mt, (void**)&dv_anchor[0], NULL, s->sys->difseg_size * 27); - + emms_c(); /* return image */ *data_size = sizeof(AVFrame); *(AVFrame*)data= s->picture; - + return s->sys->frame_size; } -static int dvvideo_encode_frame(AVCodecContext *c, uint8_t *buf, int buf_size, +static int dvvideo_encode_frame(AVCodecContext *c, uint8_t *buf, int buf_size, void *data) { DVVideoContext *s = c->priv_data; @@ -968,7 +968,7 @@ static int dvvideo_encode_frame(AVCodecContext *c, uint8_t *buf, int buf_size, s->picture.pict_type = FF_I_TYPE; s->buf = buf; - c->execute(c, dv_encode_mt, (void**)&dv_anchor[0], NULL, + c->execute(c, dv_encode_mt, (void**)&dv_anchor[0], NULL, s->sys->difseg_size * 27); emms_c(); |