diff options
Diffstat (limited to 'ffmpeg/libavcodec/vp6.c')
| -rw-r--r-- | ffmpeg/libavcodec/vp6.c | 709 |
1 files changed, 0 insertions, 709 deletions
diff --git a/ffmpeg/libavcodec/vp6.c b/ffmpeg/libavcodec/vp6.c deleted file mode 100644 index f552524..0000000 --- a/ffmpeg/libavcodec/vp6.c +++ /dev/null @@ -1,709 +0,0 @@ -/* - * Copyright (C) 2006 Aurelien Jacobs <aurel@gnuage.org> - * - * 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 - * VP6 compatible video decoder - * - * The VP6F decoder accepts an optional 1 byte extradata. It is composed of: - * - upper 4 bits: difference between encoded width and visible width - * - lower 4 bits: difference between encoded height and visible height - */ - -#include <stdlib.h> - -#include "avcodec.h" -#include "get_bits.h" -#include "huffman.h" -#include "internal.h" - -#include "vp56.h" -#include "vp56data.h" -#include "vp6data.h" - -#define VP6_MAX_HUFF_SIZE 12 - -static void vp6_parse_coeff(VP56Context *s); -static void vp6_parse_coeff_huffman(VP56Context *s); - -static int vp6_parse_header(VP56Context *s, const uint8_t *buf, int buf_size) -{ - VP56RangeCoder *c = &s->c; - int parse_filter_info = 0; - int coeff_offset = 0; - int vrt_shift = 0; - int sub_version; - int rows, cols; - int res = 0; - int separated_coeff = buf[0] & 1; - - s->frames[VP56_FRAME_CURRENT]->key_frame = !(buf[0] & 0x80); - ff_vp56_init_dequant(s, (buf[0] >> 1) & 0x3F); - - if (s->frames[VP56_FRAME_CURRENT]->key_frame) { - sub_version = buf[1] >> 3; - if (sub_version > 8) - return AVERROR_INVALIDDATA; - s->filter_header = buf[1] & 0x06; - if (buf[1] & 1) { - avpriv_report_missing_feature(s->avctx, "Interlacing"); - return AVERROR_PATCHWELCOME; - } - if (separated_coeff || !s->filter_header) { - coeff_offset = AV_RB16(buf+2) - 2; - buf += 2; - buf_size -= 2; - } - - rows = buf[2]; /* number of stored macroblock rows */ - cols = buf[3]; /* number of stored macroblock cols */ - /* buf[4] is number of displayed macroblock rows */ - /* buf[5] is number of displayed macroblock cols */ - if (!rows || !cols) { - av_log(s->avctx, AV_LOG_ERROR, "Invalid size %dx%d\n", cols << 4, rows << 4); - return AVERROR_INVALIDDATA; - } - - if (!s->macroblocks || /* first frame */ - 16*cols != s->avctx->coded_width || - 16*rows != s->avctx->coded_height) { - if (s->avctx->extradata_size == 0 && - FFALIGN(s->avctx->width, 16) == 16 * cols && - FFALIGN(s->avctx->height, 16) == 16 * rows) { - // We assume this is properly signalled container cropping, - // in an F4V file. Just set the coded_width/height, don't - // touch the cropped ones. - s->avctx->coded_width = 16 * cols; - s->avctx->coded_height = 16 * rows; - } else { - int ret = ff_set_dimensions(s->avctx, 16 * cols, 16 * rows); - if (ret < 0) - return ret; - - if (s->avctx->extradata_size == 1) { - s->avctx->width -= s->avctx->extradata[0] >> 4; - s->avctx->height -= s->avctx->extradata[0] & 0x0F; - } - } - res = VP56_SIZE_CHANGE; - } - - ff_vp56_init_range_decoder(c, buf+6, buf_size-6); - vp56_rac_gets(c, 2); - - parse_filter_info = s->filter_header; - if (sub_version < 8) - vrt_shift = 5; - s->sub_version = sub_version; - s->golden_frame = 0; - } else { - if (!s->sub_version || !s->avctx->coded_width || !s->avctx->coded_height) - return AVERROR_INVALIDDATA; - - if (separated_coeff || !s->filter_header) { - coeff_offset = AV_RB16(buf+1) - 2; - buf += 2; - buf_size -= 2; - } - ff_vp56_init_range_decoder(c, buf+1, buf_size-1); - - s->golden_frame = vp56_rac_get(c); - if (s->filter_header) { - s->deblock_filtering = vp56_rac_get(c); - if (s->deblock_filtering) - vp56_rac_get(c); - if (s->sub_version > 7) - parse_filter_info = vp56_rac_get(c); - } - } - - if (parse_filter_info) { - if (vp56_rac_get(c)) { - s->filter_mode = 2; - s->sample_variance_threshold = vp56_rac_gets(c, 5) << vrt_shift; - s->max_vector_length = 2 << vp56_rac_gets(c, 3); - } else if (vp56_rac_get(c)) { - s->filter_mode = 1; - } else { - s->filter_mode = 0; - } - if (s->sub_version > 7) - s->filter_selection = vp56_rac_gets(c, 4); - else - s->filter_selection = 16; - } - - s->use_huffman = vp56_rac_get(c); - - s->parse_coeff = vp6_parse_coeff; - if (coeff_offset) { - buf += coeff_offset; - buf_size -= coeff_offset; - if (buf_size < 0) { - if (s->frames[VP56_FRAME_CURRENT]->key_frame) - ff_set_dimensions(s->avctx, 0, 0); - return AVERROR_INVALIDDATA; - } - if (s->use_huffman) { - s->parse_coeff = vp6_parse_coeff_huffman; - init_get_bits(&s->gb, buf, buf_size<<3); - } else { - ff_vp56_init_range_decoder(&s->cc, buf, buf_size); - s->ccp = &s->cc; - } - } else { - s->ccp = &s->c; - } - - return res; -} - -static void vp6_coeff_order_table_init(VP56Context *s) -{ - int i, pos, idx = 1; - - s->modelp->coeff_index_to_pos[0] = 0; - for (i=0; i<16; i++) - for (pos=1; pos<64; pos++) - if (s->modelp->coeff_reorder[pos] == i) - s->modelp->coeff_index_to_pos[idx++] = pos; -} - -static void vp6_default_models_init(VP56Context *s) -{ - VP56Model *model = s->modelp; - - model->vector_dct[0] = 0xA2; - model->vector_dct[1] = 0xA4; - model->vector_sig[0] = 0x80; - model->vector_sig[1] = 0x80; - - memcpy(model->mb_types_stats, ff_vp56_def_mb_types_stats, sizeof(model->mb_types_stats)); - memcpy(model->vector_fdv, vp6_def_fdv_vector_model, sizeof(model->vector_fdv)); - memcpy(model->vector_pdv, vp6_def_pdv_vector_model, sizeof(model->vector_pdv)); - memcpy(model->coeff_runv, vp6_def_runv_coeff_model, sizeof(model->coeff_runv)); - memcpy(model->coeff_reorder, vp6_def_coeff_reorder, sizeof(model->coeff_reorder)); - - vp6_coeff_order_table_init(s); -} - -static void vp6_parse_vector_models(VP56Context *s) -{ - VP56RangeCoder *c = &s->c; - VP56Model *model = s->modelp; - int comp, node; - - for (comp=0; comp<2; comp++) { - if (vp56_rac_get_prob(c, vp6_sig_dct_pct[comp][0])) - model->vector_dct[comp] = vp56_rac_gets_nn(c, 7); - if (vp56_rac_get_prob(c, vp6_sig_dct_pct[comp][1])) - model->vector_sig[comp] = vp56_rac_gets_nn(c, 7); - } - - for (comp=0; comp<2; comp++) - for (node=0; node<7; node++) - if (vp56_rac_get_prob(c, vp6_pdv_pct[comp][node])) - model->vector_pdv[comp][node] = vp56_rac_gets_nn(c, 7); - - for (comp=0; comp<2; comp++) - for (node=0; node<8; node++) - if (vp56_rac_get_prob(c, vp6_fdv_pct[comp][node])) - model->vector_fdv[comp][node] = vp56_rac_gets_nn(c, 7); -} - -/* nodes must ascend by count, but with descending symbol order */ -static int vp6_huff_cmp(const void *va, const void *vb) -{ - const Node *a = va, *b = vb; - return (a->count - b->count)*16 + (b->sym - a->sym); -} - -static int vp6_build_huff_tree(VP56Context *s, uint8_t coeff_model[], - const uint8_t *map, unsigned size, VLC *vlc) -{ - Node nodes[2*VP6_MAX_HUFF_SIZE], *tmp = &nodes[size]; - int a, b, i; - - /* first compute probabilities from model */ - tmp[0].count = 256; - for (i=0; i<size-1; i++) { - a = tmp[i].count * coeff_model[i] >> 8; - b = tmp[i].count * (255 - coeff_model[i]) >> 8; - nodes[map[2*i ]].count = a + !a; - nodes[map[2*i+1]].count = b + !b; - } - - ff_free_vlc(vlc); - /* then build the huffman tree according to probabilities */ - return ff_huff_build_tree(s->avctx, vlc, size, FF_HUFFMAN_BITS, - nodes, vp6_huff_cmp, - FF_HUFFMAN_FLAG_HNODE_FIRST); -} - -static int vp6_parse_coeff_models(VP56Context *s) -{ - VP56RangeCoder *c = &s->c; - VP56Model *model = s->modelp; - int def_prob[11]; - int node, cg, ctx, pos; - int ct; /* code type */ - int pt; /* plane type (0 for Y, 1 for U or V) */ - - memset(def_prob, 0x80, sizeof(def_prob)); - - for (pt=0; pt<2; pt++) - for (node=0; node<11; node++) - if (vp56_rac_get_prob(c, vp6_dccv_pct[pt][node])) { - def_prob[node] = vp56_rac_gets_nn(c, 7); - model->coeff_dccv[pt][node] = def_prob[node]; - } else if (s->frames[VP56_FRAME_CURRENT]->key_frame) { - model->coeff_dccv[pt][node] = def_prob[node]; - } - - if (vp56_rac_get(c)) { - for (pos=1; pos<64; pos++) - if (vp56_rac_get_prob(c, vp6_coeff_reorder_pct[pos])) - model->coeff_reorder[pos] = vp56_rac_gets(c, 4); - vp6_coeff_order_table_init(s); - } - - for (cg=0; cg<2; cg++) - for (node=0; node<14; node++) - if (vp56_rac_get_prob(c, vp6_runv_pct[cg][node])) - model->coeff_runv[cg][node] = vp56_rac_gets_nn(c, 7); - - for (ct=0; ct<3; ct++) - for (pt=0; pt<2; pt++) - for (cg=0; cg<6; cg++) - for (node=0; node<11; node++) - if (vp56_rac_get_prob(c, vp6_ract_pct[ct][pt][cg][node])) { - def_prob[node] = vp56_rac_gets_nn(c, 7); - model->coeff_ract[pt][ct][cg][node] = def_prob[node]; - } else if (s->frames[VP56_FRAME_CURRENT]->key_frame) { - model->coeff_ract[pt][ct][cg][node] = def_prob[node]; - } - - if (s->use_huffman) { - for (pt=0; pt<2; pt++) { - if (vp6_build_huff_tree(s, model->coeff_dccv[pt], - vp6_huff_coeff_map, 12, &s->dccv_vlc[pt])) - return -1; - if (vp6_build_huff_tree(s, model->coeff_runv[pt], - vp6_huff_run_map, 9, &s->runv_vlc[pt])) - return -1; - for (ct=0; ct<3; ct++) - for (cg = 0; cg < 6; cg++) - if (vp6_build_huff_tree(s, model->coeff_ract[pt][ct][cg], - vp6_huff_coeff_map, 12, - &s->ract_vlc[pt][ct][cg])) - return -1; - } - memset(s->nb_null, 0, sizeof(s->nb_null)); - } else { - /* coeff_dcct is a linear combination of coeff_dccv */ - for (pt=0; pt<2; pt++) - for (ctx=0; ctx<3; ctx++) - for (node=0; node<5; node++) - model->coeff_dcct[pt][ctx][node] = av_clip(((model->coeff_dccv[pt][node] * vp6_dccv_lc[ctx][node][0] + 128) >> 8) + vp6_dccv_lc[ctx][node][1], 1, 255); - } - return 0; -} - -static void vp6_parse_vector_adjustment(VP56Context *s, VP56mv *vect) -{ - VP56RangeCoder *c = &s->c; - VP56Model *model = s->modelp; - int comp; - - *vect = (VP56mv) {0,0}; - if (s->vector_candidate_pos < 2) - *vect = s->vector_candidate[0]; - - for (comp=0; comp<2; comp++) { - int i, delta = 0; - - if (vp56_rac_get_prob(c, model->vector_dct[comp])) { - static const uint8_t prob_order[] = {0, 1, 2, 7, 6, 5, 4}; - for (i=0; i<sizeof(prob_order); i++) { - int j = prob_order[i]; - delta |= vp56_rac_get_prob(c, model->vector_fdv[comp][j])<<j; - } - if (delta & 0xF0) - delta |= vp56_rac_get_prob(c, model->vector_fdv[comp][3])<<3; - else - delta |= 8; - } else { - delta = vp56_rac_get_tree(c, ff_vp56_pva_tree, - model->vector_pdv[comp]); - } - - if (delta && vp56_rac_get_prob(c, model->vector_sig[comp])) - delta = -delta; - - if (!comp) - vect->x += delta; - else - vect->y += delta; - } -} - -/** - * Read number of consecutive blocks with null DC or AC. - * This value is < 74. - */ -static unsigned vp6_get_nb_null(VP56Context *s) -{ - unsigned val = get_bits(&s->gb, 2); - if (val == 2) - val += get_bits(&s->gb, 2); - else if (val == 3) { - val = get_bits1(&s->gb) << 2; - val = 6+val + get_bits(&s->gb, 2+val); - } - return val; -} - -static void vp6_parse_coeff_huffman(VP56Context *s) -{ - VP56Model *model = s->modelp; - uint8_t *permute = s->idct_scantable; - VLC *vlc_coeff; - int coeff, sign, coeff_idx; - int b, cg, idx; - int pt = 0; /* plane type (0 for Y, 1 for U or V) */ - - for (b=0; b<6; b++) { - int ct = 0; /* code type */ - if (b > 3) pt = 1; - vlc_coeff = &s->dccv_vlc[pt]; - - for (coeff_idx = 0;;) { - int run = 1; - if (coeff_idx<2 && s->nb_null[coeff_idx][pt]) { - s->nb_null[coeff_idx][pt]--; - if (coeff_idx) - break; - } else { - if (get_bits_left(&s->gb) <= 0) - return; - coeff = get_vlc2(&s->gb, vlc_coeff->table, FF_HUFFMAN_BITS, 3); - if (coeff == 0) { - if (coeff_idx) { - int pt = (coeff_idx >= 6); - run += get_vlc2(&s->gb, s->runv_vlc[pt].table, FF_HUFFMAN_BITS, 3); - if (run >= 9) - run += get_bits(&s->gb, 6); - } else - s->nb_null[0][pt] = vp6_get_nb_null(s); - ct = 0; - } else if (coeff == 11) { /* end of block */ - if (coeff_idx == 1) /* first AC coeff ? */ - s->nb_null[1][pt] = vp6_get_nb_null(s); - break; - } else { - int coeff2 = ff_vp56_coeff_bias[coeff]; - if (coeff > 4) - coeff2 += get_bits(&s->gb, coeff <= 9 ? coeff - 4 : 11); - ct = 1 + (coeff2 > 1); - sign = get_bits1(&s->gb); - coeff2 = (coeff2 ^ -sign) + sign; - if (coeff_idx) - coeff2 *= s->dequant_ac; - idx = model->coeff_index_to_pos[coeff_idx]; - s->block_coeff[b][permute[idx]] = coeff2; - } - } - coeff_idx+=run; - if (coeff_idx >= 64) - break; - cg = FFMIN(vp6_coeff_groups[coeff_idx], 3); - vlc_coeff = &s->ract_vlc[pt][ct][cg]; - } - } -} - -static void vp6_parse_coeff(VP56Context *s) -{ - VP56RangeCoder *c = s->ccp; - VP56Model *model = s->modelp; - uint8_t *permute = s->idct_scantable; - uint8_t *model1, *model2, *model3; - int coeff, sign, coeff_idx; - int b, i, cg, idx, ctx; - int pt = 0; /* plane type (0 for Y, 1 for U or V) */ - - for (b=0; b<6; b++) { - int ct = 1; /* code type */ - int run = 1; - - if (b > 3) pt = 1; - - ctx = s->left_block[ff_vp56_b6to4[b]].not_null_dc - + s->above_blocks[s->above_block_idx[b]].not_null_dc; - model1 = model->coeff_dccv[pt]; - model2 = model->coeff_dcct[pt][ctx]; - - coeff_idx = 0; - for (;;) { - if ((coeff_idx>1 && ct==0) || vp56_rac_get_prob(c, model2[0])) { - /* parse a coeff */ - if (vp56_rac_get_prob(c, model2[2])) { - if (vp56_rac_get_prob(c, model2[3])) { - idx = vp56_rac_get_tree(c, ff_vp56_pc_tree, model1); - coeff = ff_vp56_coeff_bias[idx+5]; - for (i=ff_vp56_coeff_bit_length[idx]; i>=0; i--) - coeff += vp56_rac_get_prob(c, ff_vp56_coeff_parse_table[idx][i]) << i; - } else { - if (vp56_rac_get_prob(c, model2[4])) - coeff = 3 + vp56_rac_get_prob(c, model1[5]); - else - coeff = 2; - } - ct = 2; - } else { - ct = 1; - coeff = 1; - } - sign = vp56_rac_get(c); - coeff = (coeff ^ -sign) + sign; - if (coeff_idx) - coeff *= s->dequant_ac; - idx = model->coeff_index_to_pos[coeff_idx]; - s->block_coeff[b][permute[idx]] = coeff; - run = 1; - } else { - /* parse a run */ - ct = 0; - if (coeff_idx > 0) { - if (!vp56_rac_get_prob(c, model2[1])) - break; - - model3 = model->coeff_runv[coeff_idx >= 6]; - run = vp56_rac_get_tree(c, vp6_pcr_tree, model3); - if (!run) - for (run=9, i=0; i<6; i++) - run += vp56_rac_get_prob(c, model3[i+8]) << i; - } - } - coeff_idx += run; - if (coeff_idx >= 64) - break; - cg = vp6_coeff_groups[coeff_idx]; - model1 = model2 = model->coeff_ract[pt][ct][cg]; - } - - s->left_block[ff_vp56_b6to4[b]].not_null_dc = - s->above_blocks[s->above_block_idx[b]].not_null_dc = !!s->block_coeff[b][0]; - } -} - -static int vp6_block_variance(uint8_t *src, int stride) -{ - int sum = 0, square_sum = 0; - int y, x; - - for (y=0; y<8; y+=2) { - for (x=0; x<8; x+=2) { - sum += src[x]; - square_sum += src[x]*src[x]; - } - src += 2*stride; - } - return (16*square_sum - sum*sum) >> 8; -} - -static void vp6_filter_hv4(uint8_t *dst, uint8_t *src, int stride, - int delta, const int16_t *weights) -{ - int x, y; - - for (y=0; y<8; y++) { - for (x=0; x<8; x++) { - dst[x] = av_clip_uint8(( src[x-delta ] * weights[0] - + src[x ] * weights[1] - + src[x+delta ] * weights[2] - + src[x+2*delta] * weights[3] + 64) >> 7); - } - src += stride; - dst += stride; - } -} - -static void vp6_filter_diag2(VP56Context *s, uint8_t *dst, uint8_t *src, - int stride, int h_weight, int v_weight) -{ - uint8_t *tmp = s->edge_emu_buffer+16; - s->h264chroma.put_h264_chroma_pixels_tab[0](tmp, src, stride, 9, h_weight, 0); - s->h264chroma.put_h264_chroma_pixels_tab[0](dst, tmp, stride, 8, 0, v_weight); -} - -static void vp6_filter(VP56Context *s, uint8_t *dst, uint8_t *src, - int offset1, int offset2, int stride, - VP56mv mv, int mask, int select, int luma) -{ - int filter4 = 0; - int x8 = mv.x & mask; - int y8 = mv.y & mask; - - if (luma) { - x8 *= 2; - y8 *= 2; - filter4 = s->filter_mode; - if (filter4 == 2) { - if (s->max_vector_length && - (FFABS(mv.x) > s->max_vector_length || - FFABS(mv.y) > s->max_vector_length)) { - filter4 = 0; - } else if (s->sample_variance_threshold - && (vp6_block_variance(src+offset1, stride) - < s->sample_variance_threshold)) { - filter4 = 0; - } - } - } - - if ((y8 && (offset2-offset1)*s->flip<0) || (!y8 && offset1 > offset2)) { - offset1 = offset2; - } - - if (filter4) { - if (!y8) { /* left or right combine */ - vp6_filter_hv4(dst, src+offset1, stride, 1, - vp6_block_copy_filter[select][x8]); - } else if (!x8) { /* above or below combine */ - vp6_filter_hv4(dst, src+offset1, stride, stride, - vp6_block_copy_filter[select][y8]); - } else { - s->vp56dsp.vp6_filter_diag4(dst, src+offset1+((mv.x^mv.y)>>31), stride, - vp6_block_copy_filter[select][x8], - vp6_block_copy_filter[select][y8]); - } - } else { - if (!x8 || !y8) { - s->h264chroma.put_h264_chroma_pixels_tab[0](dst, src + offset1, stride, 8, x8, y8); - } else { - vp6_filter_diag2(s, dst, src+offset1 + ((mv.x^mv.y)>>31), stride, x8, y8); - } - } -} - -static av_cold void vp6_decode_init_context(VP56Context *s); - -static av_cold int vp6_decode_init(AVCodecContext *avctx) -{ - VP56Context *s = avctx->priv_data; - int ret; - - if ((ret = ff_vp56_init(avctx, avctx->codec->id == AV_CODEC_ID_VP6, - avctx->codec->id == AV_CODEC_ID_VP6A)) < 0) - return ret; - - vp6_decode_init_context(s); - - if (s->has_alpha) { - s->alpha_context = av_mallocz(sizeof(VP56Context)); - ff_vp56_init_context(avctx, s->alpha_context, - s->flip == -1, s->has_alpha); - vp6_decode_init_context(s->alpha_context); - } - - return 0; -} - -static av_cold void vp6_decode_init_context(VP56Context *s) -{ - s->deblock_filtering = 0; - s->vp56_coord_div = vp6_coord_div; - s->parse_vector_adjustment = vp6_parse_vector_adjustment; - s->filter = vp6_filter; - s->default_models_init = vp6_default_models_init; - s->parse_vector_models = vp6_parse_vector_models; - s->parse_coeff_models = vp6_parse_coeff_models; - s->parse_header = vp6_parse_header; -} - -static av_cold void vp6_decode_free_context(VP56Context *s); - -static av_cold int vp6_decode_free(AVCodecContext *avctx) -{ - VP56Context *s = avctx->priv_data; - - ff_vp56_free(avctx); - vp6_decode_free_context(s); - - if (s->alpha_context) { - ff_vp56_free_context(s->alpha_context); - vp6_decode_free_context(s->alpha_context); - av_free(s->alpha_context); - } - - return 0; -} - -static av_cold void vp6_decode_free_context(VP56Context *s) -{ - int pt, ct, cg; - - for (pt=0; pt<2; pt++) { - ff_free_vlc(&s->dccv_vlc[pt]); - ff_free_vlc(&s->runv_vlc[pt]); - for (ct=0; ct<3; ct++) - for (cg=0; cg<6; cg++) - ff_free_vlc(&s->ract_vlc[pt][ct][cg]); - } -} - -AVCodec ff_vp6_decoder = { - .name = "vp6", - .long_name = NULL_IF_CONFIG_SMALL("On2 VP6"), - .type = AVMEDIA_TYPE_VIDEO, - .id = AV_CODEC_ID_VP6, - .priv_data_size = sizeof(VP56Context), - .init = vp6_decode_init, - .close = vp6_decode_free, - .decode = ff_vp56_decode_frame, - .capabilities = CODEC_CAP_DR1, -}; - -/* flash version, not flipped upside-down */ -AVCodec ff_vp6f_decoder = { - .name = "vp6f", - .long_name = NULL_IF_CONFIG_SMALL("On2 VP6 (Flash version)"), - .type = AVMEDIA_TYPE_VIDEO, - .id = AV_CODEC_ID_VP6F, - .priv_data_size = sizeof(VP56Context), - .init = vp6_decode_init, - .close = vp6_decode_free, - .decode = ff_vp56_decode_frame, - .capabilities = CODEC_CAP_DR1, -}; - -/* flash version, not flipped upside-down, with alpha channel */ -AVCodec ff_vp6a_decoder = { - .name = "vp6a", - .long_name = NULL_IF_CONFIG_SMALL("On2 VP6 (Flash version, with alpha channel)"), - .type = AVMEDIA_TYPE_VIDEO, - .id = AV_CODEC_ID_VP6A, - .priv_data_size = sizeof(VP56Context), - .init = vp6_decode_init, - .close = vp6_decode_free, - .decode = ff_vp56_decode_frame, - .capabilities = CODEC_CAP_DR1 | CODEC_CAP_SLICE_THREADS, -}; |