yading@10: /* yading@10: * DV decoder yading@10: * Copyright (c) 2002 Fabrice Bellard yading@10: * Copyright (c) 2004 Roman Shaposhnik yading@10: * yading@10: * DV encoder yading@10: * Copyright (c) 2003 Roman Shaposhnik yading@10: * yading@10: * 50 Mbps (DVCPRO50) support yading@10: * Copyright (c) 2006 Daniel Maas yading@10: * yading@10: * 100 Mbps (DVCPRO HD) support yading@10: * Initial code by Daniel Maas (funded by BBC R&D) yading@10: * Final code by Roman Shaposhnik yading@10: * yading@10: * Many thanks to Dan Dennedy for providing wealth yading@10: * of DV technical info. yading@10: * yading@10: * This file is part of FFmpeg. yading@10: * yading@10: * FFmpeg is free software; you can redistribute it and/or yading@10: * modify it under the terms of the GNU Lesser General Public yading@10: * License as published by the Free Software Foundation; either yading@10: * version 2.1 of the License, or (at your option) any later version. yading@10: * yading@10: * FFmpeg is distributed in the hope that it will be useful, yading@10: * but WITHOUT ANY WARRANTY; without even the implied warranty of yading@10: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU yading@10: * Lesser General Public License for more details. yading@10: * yading@10: * You should have received a copy of the GNU Lesser General Public yading@10: * License along with FFmpeg; if not, write to the Free Software yading@10: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA yading@10: */ yading@10: yading@10: /** yading@10: * @file yading@10: * DV codec. yading@10: */ yading@10: yading@10: #include "libavutil/internal.h" yading@10: #include "libavutil/pixdesc.h" yading@10: #include "avcodec.h" yading@10: #include "get_bits.h" yading@10: #include "internal.h" yading@10: #include "put_bits.h" yading@10: #include "simple_idct.h" yading@10: #include "dvdata.h" yading@10: #include "dv_tablegen.h" yading@10: yading@10: /* XXX: also include quantization */ yading@10: RL_VLC_ELEM ff_dv_rl_vlc[1184]; yading@10: yading@10: static inline void dv_calc_mb_coordinates(const DVprofile *d, int chan, int seq, int slot, yading@10: uint16_t *tbl) yading@10: { yading@10: static const uint8_t off[] = { 2, 6, 8, 0, 4 }; yading@10: static const uint8_t shuf1[] = { 36, 18, 54, 0, 72 }; yading@10: static const uint8_t shuf2[] = { 24, 12, 36, 0, 48 }; yading@10: static const uint8_t shuf3[] = { 18, 9, 27, 0, 36 }; yading@10: yading@10: static const uint8_t l_start[] = {0, 4, 9, 13, 18, 22, 27, 31, 36, 40}; yading@10: static const uint8_t l_start_shuffled[] = { 9, 4, 13, 0, 18 }; yading@10: yading@10: static const uint8_t serpent1[] = {0, 1, 2, 2, 1, 0, yading@10: 0, 1, 2, 2, 1, 0, yading@10: 0, 1, 2, 2, 1, 0, yading@10: 0, 1, 2, 2, 1, 0, yading@10: 0, 1, 2}; yading@10: static const uint8_t serpent2[] = {0, 1, 2, 3, 4, 5, 5, 4, 3, 2, 1, 0, yading@10: 0, 1, 2, 3, 4, 5, 5, 4, 3, 2, 1, 0, yading@10: 0, 1, 2, 3, 4, 5}; yading@10: yading@10: static const uint8_t remap[][2] = {{ 0, 0}, { 0, 0}, { 0, 0}, { 0, 0}, /* dummy */ yading@10: { 0, 0}, { 0, 1}, { 0, 2}, { 0, 3}, {10, 0}, yading@10: {10, 1}, {10, 2}, {10, 3}, {20, 0}, {20, 1}, yading@10: {20, 2}, {20, 3}, {30, 0}, {30, 1}, {30, 2}, yading@10: {30, 3}, {40, 0}, {40, 1}, {40, 2}, {40, 3}, yading@10: {50, 0}, {50, 1}, {50, 2}, {50, 3}, {60, 0}, yading@10: {60, 1}, {60, 2}, {60, 3}, {70, 0}, {70, 1}, yading@10: {70, 2}, {70, 3}, { 0,64}, { 0,65}, { 0,66}, yading@10: {10,64}, {10,65}, {10,66}, {20,64}, {20,65}, yading@10: {20,66}, {30,64}, {30,65}, {30,66}, {40,64}, yading@10: {40,65}, {40,66}, {50,64}, {50,65}, {50,66}, yading@10: {60,64}, {60,65}, {60,66}, {70,64}, {70,65}, yading@10: {70,66}, { 0,67}, {20,67}, {40,67}, {60,67}}; yading@10: yading@10: int i, k, m; yading@10: int x, y, blk; yading@10: yading@10: for (m=0; m<5; m++) { yading@10: switch (d->width) { yading@10: case 1440: yading@10: blk = (chan*11+seq)*27+slot; yading@10: yading@10: if (chan == 0 && seq == 11) { yading@10: x = m*27+slot; yading@10: if (x<90) { yading@10: y = 0; yading@10: } else { yading@10: x = (x - 90)*2; yading@10: y = 67; yading@10: } yading@10: } else { yading@10: i = (4*chan + blk + off[m])%11; yading@10: k = (blk/11)%27; yading@10: yading@10: x = shuf1[m] + (chan&1)*9 + k%9; yading@10: y = (i*3+k/9)*2 + (chan>>1) + 1; yading@10: } yading@10: tbl[m] = (x<<1)|(y<<9); yading@10: break; yading@10: case 1280: yading@10: blk = (chan*10+seq)*27+slot; yading@10: yading@10: i = (4*chan + (seq/5) + 2*blk + off[m])%10; yading@10: k = (blk/5)%27; yading@10: yading@10: x = shuf1[m]+(chan&1)*9 + k%9; yading@10: y = (i*3+k/9)*2 + (chan>>1) + 4; yading@10: yading@10: if (x >= 80) { yading@10: x = remap[y][0]+((x-80)<<(y>59)); yading@10: y = remap[y][1]; yading@10: } yading@10: tbl[m] = (x<<1)|(y<<9); yading@10: break; yading@10: case 960: yading@10: blk = (chan*10+seq)*27+slot; yading@10: yading@10: i = (4*chan + (seq/5) + 2*blk + off[m])%10; yading@10: k = (blk/5)%27 + (i&1)*3; yading@10: yading@10: x = shuf2[m] + k%6 + 6*(chan&1); yading@10: y = l_start[i] + k/6 + 45*(chan>>1); yading@10: tbl[m] = (x<<1)|(y<<9); yading@10: break; yading@10: case 720: yading@10: switch (d->pix_fmt) { yading@10: case AV_PIX_FMT_YUV422P: yading@10: x = shuf3[m] + slot/3; yading@10: y = serpent1[slot] + yading@10: ((((seq + off[m]) % d->difseg_size)<<1) + chan)*3; yading@10: tbl[m] = (x<<1)|(y<<8); yading@10: break; yading@10: case AV_PIX_FMT_YUV420P: yading@10: x = shuf3[m] + slot/3; yading@10: y = serpent1[slot] + yading@10: ((seq + off[m]) % d->difseg_size)*3; yading@10: tbl[m] = (x<<1)|(y<<9); yading@10: break; yading@10: case AV_PIX_FMT_YUV411P: yading@10: i = (seq + off[m]) % d->difseg_size; yading@10: k = slot + ((m==1||m==2)?3:0); yading@10: yading@10: x = l_start_shuffled[m] + k/6; yading@10: y = serpent2[k] + i*6; yading@10: if (x>21) yading@10: y = y*2 - i*6; yading@10: tbl[m] = (x<<2)|(y<<8); yading@10: break; yading@10: } yading@10: default: yading@10: break; yading@10: } yading@10: } yading@10: } yading@10: yading@10: /* quantization quanta by QNO for DV100 */ yading@10: static const uint8_t dv100_qstep[16] = { yading@10: 1, /* QNO = 0 and 1 both have no quantization */ yading@10: 1, yading@10: 2, 3, 4, 5, 6, 7, 8, 16, 18, 20, 22, 24, 28, 52 yading@10: }; yading@10: yading@10: static const uint8_t dv_quant_areas[4] = { 6, 21, 43, 64 }; yading@10: yading@10: int ff_dv_init_dynamic_tables(const DVprofile *d) yading@10: { yading@10: int j,i,c,s,p; yading@10: uint32_t *factor1, *factor2; yading@10: const int *iweight1, *iweight2; yading@10: yading@10: if (!d->work_chunks[dv_work_pool_size(d)-1].buf_offset) { yading@10: p = i = 0; yading@10: for (c=0; cn_difchan; c++) { yading@10: for (s=0; sdifseg_size; s++) { yading@10: p += 6; yading@10: for (j=0; j<27; j++) { yading@10: p += !(j%3); yading@10: if (!(DV_PROFILE_IS_1080i50(d) && c != 0 && s == 11) && yading@10: !(DV_PROFILE_IS_720p50(d) && s > 9)) { yading@10: dv_calc_mb_coordinates(d, c, s, j, &d->work_chunks[i].mb_coordinates[0]); yading@10: d->work_chunks[i++].buf_offset = p; yading@10: } yading@10: p += 5; yading@10: } yading@10: } yading@10: } yading@10: } yading@10: yading@10: if (!d->idct_factor[DV_PROFILE_IS_HD(d)?8191:5631]) { yading@10: factor1 = &d->idct_factor[0]; yading@10: factor2 = &d->idct_factor[DV_PROFILE_IS_HD(d)?4096:2816]; yading@10: if (d->height == 720) { yading@10: iweight1 = &ff_dv_iweight_720_y[0]; yading@10: iweight2 = &ff_dv_iweight_720_c[0]; yading@10: } else { yading@10: iweight1 = &ff_dv_iweight_1080_y[0]; yading@10: iweight2 = &ff_dv_iweight_1080_c[0]; yading@10: } yading@10: if (DV_PROFILE_IS_HD(d)) { yading@10: for (c = 0; c < 4; c++) { yading@10: for (s = 0; s < 16; s++) { yading@10: for (i = 0; i < 64; i++) { yading@10: *factor1++ = (dv100_qstep[s] << (c + 9)) * iweight1[i]; yading@10: *factor2++ = (dv100_qstep[s] << (c + 9)) * iweight2[i]; yading@10: } yading@10: } yading@10: } yading@10: } else { yading@10: iweight1 = &ff_dv_iweight_88[0]; yading@10: for (j = 0; j < 2; j++, iweight1 = &ff_dv_iweight_248[0]) { yading@10: for (s = 0; s < 22; s++) { yading@10: for (i = c = 0; c < 4; c++) { yading@10: for (; i < dv_quant_areas[c]; i++) { yading@10: *factor1 = iweight1[i] << (ff_dv_quant_shifts[s][c] + 1); yading@10: *factor2++ = (*factor1++) << 1; yading@10: } yading@10: } yading@10: } yading@10: } yading@10: } yading@10: } yading@10: yading@10: return 0; yading@10: } yading@10: yading@10: av_cold int ff_dvvideo_init(AVCodecContext *avctx) yading@10: { yading@10: DVVideoContext *s = avctx->priv_data; yading@10: DSPContext dsp; yading@10: static int done = 0; yading@10: int i, j; yading@10: yading@10: if (!done) { yading@10: VLC dv_vlc; yading@10: uint16_t new_dv_vlc_bits[NB_DV_VLC*2]; yading@10: uint8_t new_dv_vlc_len[NB_DV_VLC*2]; yading@10: uint8_t new_dv_vlc_run[NB_DV_VLC*2]; yading@10: int16_t new_dv_vlc_level[NB_DV_VLC*2]; yading@10: yading@10: done = 1; yading@10: yading@10: /* it's faster to include sign bit in a generic VLC parsing scheme */ yading@10: for (i = 0, j = 0; i < NB_DV_VLC; i++, j++) { yading@10: new_dv_vlc_bits[j] = dv_vlc_bits[i]; yading@10: new_dv_vlc_len[j] = dv_vlc_len[i]; yading@10: new_dv_vlc_run[j] = dv_vlc_run[i]; yading@10: new_dv_vlc_level[j] = dv_vlc_level[i]; yading@10: yading@10: if (dv_vlc_level[i]) { yading@10: new_dv_vlc_bits[j] <<= 1; yading@10: new_dv_vlc_len[j]++; yading@10: yading@10: j++; yading@10: new_dv_vlc_bits[j] = (dv_vlc_bits[i] << 1) | 1; yading@10: new_dv_vlc_len[j] = dv_vlc_len[i] + 1; yading@10: new_dv_vlc_run[j] = dv_vlc_run[i]; yading@10: new_dv_vlc_level[j] = -dv_vlc_level[i]; yading@10: } yading@10: } yading@10: yading@10: /* NOTE: as a trick, we use the fact the no codes are unused yading@10: to accelerate the parsing of partial codes */ yading@10: init_vlc(&dv_vlc, TEX_VLC_BITS, j, yading@10: new_dv_vlc_len, 1, 1, new_dv_vlc_bits, 2, 2, 0); yading@10: av_assert1(dv_vlc.table_size == 1184); yading@10: yading@10: for (i = 0; i < dv_vlc.table_size; i++){ yading@10: int code = dv_vlc.table[i][0]; yading@10: int len = dv_vlc.table[i][1]; yading@10: int level, run; yading@10: yading@10: if (len < 0){ //more bits needed yading@10: run = 0; yading@10: level = code; yading@10: } else { yading@10: run = new_dv_vlc_run [code] + 1; yading@10: level = new_dv_vlc_level[code]; yading@10: } yading@10: ff_dv_rl_vlc[i].len = len; yading@10: ff_dv_rl_vlc[i].level = level; yading@10: ff_dv_rl_vlc[i].run = run; yading@10: } yading@10: ff_free_vlc(&dv_vlc); yading@10: } yading@10: yading@10: /* Generic DSP setup */ yading@10: memset(&dsp,0, sizeof(dsp)); yading@10: ff_dsputil_init(&dsp, avctx); yading@10: ff_set_cmp(&dsp, dsp.ildct_cmp, avctx->ildct_cmp); yading@10: s->get_pixels = dsp.get_pixels; yading@10: s->ildct_cmp = dsp.ildct_cmp[5]; yading@10: yading@10: /* 88DCT setup */ yading@10: s->fdct[0] = dsp.fdct; yading@10: s->idct_put[0] = dsp.idct_put; yading@10: for (i = 0; i < 64; i++) yading@10: s->dv_zigzag[0][i] = dsp.idct_permutation[ff_zigzag_direct[i]]; yading@10: yading@10: /* 248DCT setup */ yading@10: s->fdct[1] = dsp.fdct248; yading@10: s->idct_put[1] = ff_simple_idct248_put; // FIXME: need to add it to DSP yading@10: if (avctx->lowres){ yading@10: for (i = 0; i < 64; i++){ yading@10: int j = ff_zigzag248_direct[i]; yading@10: s->dv_zigzag[1][i] = dsp.idct_permutation[(j & 7) + (j & 8) * 4 + (j & 48) / 2]; yading@10: } yading@10: }else yading@10: memcpy(s->dv_zigzag[1], ff_zigzag248_direct, 64); yading@10: yading@10: avcodec_get_frame_defaults(&s->picture); yading@10: avctx->coded_frame = &s->picture; yading@10: s->avctx = avctx; yading@10: avctx->chroma_sample_location = AVCHROMA_LOC_TOPLEFT; yading@10: yading@10: return 0; yading@10: } yading@10: yading@10: static av_cold int dvvideo_init_encoder(AVCodecContext *avctx) yading@10: { yading@10: if (!avpriv_dv_codec_profile(avctx)) { yading@10: av_log(avctx, AV_LOG_ERROR, "Found no DV profile for %ix%i %s video. " yading@10: "Valid DV profiles are:\n", yading@10: avctx->width, avctx->height, av_get_pix_fmt_name(avctx->pix_fmt)); yading@10: ff_dv_print_profiles(avctx, AV_LOG_ERROR); yading@10: return AVERROR(EINVAL); yading@10: } yading@10: if (avctx->height > 576) { yading@10: av_log(avctx, AV_LOG_ERROR, "DVCPRO HD encoding is not supported.\n"); yading@10: return AVERROR_PATCHWELCOME; yading@10: } yading@10: yading@10: dv_vlc_map_tableinit(); yading@10: yading@10: return ff_dvvideo_init(avctx); yading@10: } yading@10: yading@10: /* bit budget for AC only in 5 MBs */ yading@10: static const int vs_total_ac_bits = (100 * 4 + 68*2) * 5; yading@10: static const int mb_area_start[5] = { 1, 6, 21, 43, 64 }; yading@10: yading@10: static inline int put_bits_left(PutBitContext* s) yading@10: { yading@10: return (s->buf_end - s->buf) * 8 - put_bits_count(s); yading@10: } yading@10: yading@10: #if CONFIG_SMALL yading@10: /* Converts run and level (where level != 0) pair into VLC, returning bit size */ yading@10: static av_always_inline int dv_rl2vlc(int run, int level, int sign, uint32_t* vlc) yading@10: { yading@10: int size; yading@10: if (run < DV_VLC_MAP_RUN_SIZE && level < DV_VLC_MAP_LEV_SIZE) { yading@10: *vlc = dv_vlc_map[run][level].vlc | sign; yading@10: size = dv_vlc_map[run][level].size; yading@10: } yading@10: else { yading@10: if (level < DV_VLC_MAP_LEV_SIZE) { yading@10: *vlc = dv_vlc_map[0][level].vlc | sign; yading@10: size = dv_vlc_map[0][level].size; yading@10: } else { yading@10: *vlc = 0xfe00 | (level << 1) | sign; yading@10: size = 16; yading@10: } yading@10: if (run) { yading@10: *vlc |= ((run < 16) ? dv_vlc_map[run-1][0].vlc : yading@10: (0x1f80 | (run - 1))) << size; yading@10: size += (run < 16) ? dv_vlc_map[run-1][0].size : 13; yading@10: } yading@10: } yading@10: yading@10: return size; yading@10: } yading@10: yading@10: static av_always_inline int dv_rl2vlc_size(int run, int level) yading@10: { yading@10: int size; yading@10: yading@10: if (run < DV_VLC_MAP_RUN_SIZE && level < DV_VLC_MAP_LEV_SIZE) { yading@10: size = dv_vlc_map[run][level].size; yading@10: } yading@10: else { yading@10: size = (level < DV_VLC_MAP_LEV_SIZE) ? dv_vlc_map[0][level].size : 16; yading@10: if (run) { yading@10: size += (run < 16) ? dv_vlc_map[run-1][0].size : 13; yading@10: } yading@10: } yading@10: return size; yading@10: } yading@10: #else yading@10: static av_always_inline int dv_rl2vlc(int run, int l, int sign, uint32_t* vlc) yading@10: { yading@10: *vlc = dv_vlc_map[run][l].vlc | sign; yading@10: return dv_vlc_map[run][l].size; yading@10: } yading@10: yading@10: static av_always_inline int dv_rl2vlc_size(int run, int l) yading@10: { yading@10: return dv_vlc_map[run][l].size; yading@10: } yading@10: #endif yading@10: yading@10: typedef struct EncBlockInfo { yading@10: int area_q[4]; yading@10: int bit_size[4]; yading@10: int prev[5]; yading@10: int cur_ac; yading@10: int cno; yading@10: int dct_mode; yading@10: int16_t mb[64]; yading@10: uint8_t next[64]; yading@10: uint8_t sign[64]; yading@10: uint8_t partial_bit_count; yading@10: uint32_t partial_bit_buffer; /* we can't use uint16_t here */ yading@10: } EncBlockInfo; yading@10: yading@10: static av_always_inline PutBitContext* dv_encode_ac(EncBlockInfo* bi, yading@10: PutBitContext* pb_pool, yading@10: PutBitContext* pb_end) yading@10: { yading@10: int prev, bits_left; yading@10: PutBitContext* pb = pb_pool; yading@10: int size = bi->partial_bit_count; yading@10: uint32_t vlc = bi->partial_bit_buffer; yading@10: yading@10: bi->partial_bit_count = bi->partial_bit_buffer = 0; yading@10: for (;;){ yading@10: /* Find suitable storage space */ yading@10: for (; size > (bits_left = put_bits_left(pb)); pb++) { yading@10: if (bits_left) { yading@10: size -= bits_left; yading@10: put_bits(pb, bits_left, vlc >> size); yading@10: vlc = vlc & ((1 << size) - 1); yading@10: } yading@10: if (pb + 1 >= pb_end) { yading@10: bi->partial_bit_count = size; yading@10: bi->partial_bit_buffer = vlc; yading@10: return pb; yading@10: } yading@10: } yading@10: yading@10: /* Store VLC */ yading@10: put_bits(pb, size, vlc); yading@10: yading@10: if (bi->cur_ac >= 64) yading@10: break; yading@10: yading@10: /* Construct the next VLC */ yading@10: prev = bi->cur_ac; yading@10: bi->cur_ac = bi->next[prev]; yading@10: if (bi->cur_ac < 64){ yading@10: size = dv_rl2vlc(bi->cur_ac - prev - 1, bi->mb[bi->cur_ac], bi->sign[bi->cur_ac], &vlc); yading@10: } else { yading@10: size = 4; vlc = 6; /* End Of Block stamp */ yading@10: } yading@10: } yading@10: return pb; yading@10: } yading@10: yading@10: static av_always_inline int dv_guess_dct_mode(DVVideoContext *s, uint8_t *data, int linesize) { yading@10: if (s->avctx->flags & CODEC_FLAG_INTERLACED_DCT) { yading@10: int ps = s->ildct_cmp(NULL, data, NULL, linesize, 8) - 400; yading@10: if (ps > 0) { yading@10: int is = s->ildct_cmp(NULL, data , NULL, linesize<<1, 4) + yading@10: s->ildct_cmp(NULL, data + linesize, NULL, linesize<<1, 4); yading@10: return ps > is; yading@10: } yading@10: } yading@10: yading@10: return 0; yading@10: } yading@10: yading@10: static const int dv_weight_bits = 18; yading@10: static const int dv_weight_88[64] = { yading@10: 131072, 257107, 257107, 242189, 252167, 242189, 235923, 237536, yading@10: 237536, 235923, 229376, 231390, 223754, 231390, 229376, 222935, yading@10: 224969, 217965, 217965, 224969, 222935, 200636, 218652, 211916, yading@10: 212325, 211916, 218652, 200636, 188995, 196781, 205965, 206433, yading@10: 206433, 205965, 196781, 188995, 185364, 185364, 200636, 200704, yading@10: 200636, 185364, 185364, 174609, 180568, 195068, 195068, 180568, yading@10: 174609, 170091, 175557, 189591, 175557, 170091, 165371, 170627, yading@10: 170627, 165371, 160727, 153560, 160727, 144651, 144651, 136258, yading@10: }; yading@10: static const int dv_weight_248[64] = { yading@10: 131072, 242189, 257107, 237536, 229376, 200636, 242189, 223754, yading@10: 224969, 196781, 262144, 242189, 229376, 200636, 257107, 237536, yading@10: 211916, 185364, 235923, 217965, 229376, 211916, 206433, 180568, yading@10: 242189, 223754, 224969, 196781, 211916, 185364, 235923, 217965, yading@10: 200704, 175557, 222935, 205965, 200636, 185364, 195068, 170627, yading@10: 229376, 211916, 206433, 180568, 200704, 175557, 222935, 205965, yading@10: 175557, 153560, 188995, 174609, 165371, 144651, 200636, 185364, yading@10: 195068, 170627, 175557, 153560, 188995, 174609, 165371, 144651, yading@10: }; yading@10: yading@10: static av_always_inline int dv_init_enc_block(EncBlockInfo* bi, uint8_t *data, int linesize, DVVideoContext *s, int bias) yading@10: { yading@10: const int *weight; yading@10: const uint8_t* zigzag_scan; yading@10: LOCAL_ALIGNED_16(int16_t, blk, [64]); yading@10: int i, area; yading@10: /* We offer two different methods for class number assignment: the yading@10: method suggested in SMPTE 314M Table 22, and an improved yading@10: method. The SMPTE method is very conservative; it assigns class yading@10: 3 (i.e. severe quantization) to any block where the largest AC yading@10: component is greater than 36. FFmpeg's DV encoder tracks AC bit yading@10: consumption precisely, so there is no need to bias most blocks yading@10: towards strongly lossy compression. Instead, we assign class 2 yading@10: to most blocks, and use class 3 only when strictly necessary yading@10: (for blocks whose largest AC component exceeds 255). */ yading@10: yading@10: #if 0 /* SMPTE spec method */ yading@10: static const int classes[] = {12, 24, 36, 0xffff}; yading@10: #else /* improved FFmpeg method */ yading@10: static const int classes[] = {-1, -1, 255, 0xffff}; yading@10: #endif yading@10: int max = classes[0]; yading@10: int prev = 0; yading@10: yading@10: av_assert2((((int)blk) & 15) == 0); yading@10: yading@10: bi->area_q[0] = bi->area_q[1] = bi->area_q[2] = bi->area_q[3] = 0; yading@10: bi->partial_bit_count = 0; yading@10: bi->partial_bit_buffer = 0; yading@10: bi->cur_ac = 0; yading@10: if (data) { yading@10: bi->dct_mode = dv_guess_dct_mode(s, data, linesize); yading@10: s->get_pixels(blk, data, linesize); yading@10: s->fdct[bi->dct_mode](blk); yading@10: } else { yading@10: /* We rely on the fact that encoding all zeros leads to an immediate EOB, yading@10: which is precisely what the spec calls for in the "dummy" blocks. */ yading@10: memset(blk, 0, 64*sizeof(*blk)); yading@10: bi->dct_mode = 0; yading@10: } yading@10: bi->mb[0] = blk[0]; yading@10: yading@10: zigzag_scan = bi->dct_mode ? ff_zigzag248_direct : ff_zigzag_direct; yading@10: weight = bi->dct_mode ? dv_weight_248 : dv_weight_88; yading@10: yading@10: for (area = 0; area < 4; area++) { yading@10: bi->prev[area] = prev; yading@10: bi->bit_size[area] = 1; // 4 areas 4 bits for EOB :) yading@10: for (i = mb_area_start[area]; i < mb_area_start[area+1]; i++) { yading@10: int level = blk[zigzag_scan[i]]; yading@10: yading@10: if (level + 15 > 30U) { yading@10: bi->sign[i] = (level >> 31) & 1; yading@10: /* weight it and and shift down into range, adding for rounding */ yading@10: /* the extra division by a factor of 2^4 reverses the 8x expansion of the DCT yading@10: AND the 2x doubling of the weights */ yading@10: level = (FFABS(level) * weight[i] + (1 << (dv_weight_bits+3))) >> (dv_weight_bits+4); yading@10: bi->mb[i] = level; yading@10: if (level > max) yading@10: max = level; yading@10: bi->bit_size[area] += dv_rl2vlc_size(i - prev - 1, level); yading@10: bi->next[prev]= i; yading@10: prev = i; yading@10: } yading@10: } yading@10: } yading@10: bi->next[prev]= i; yading@10: for (bi->cno = 0; max > classes[bi->cno]; bi->cno++); yading@10: yading@10: bi->cno += bias; yading@10: yading@10: if (bi->cno >= 3) { yading@10: bi->cno = 3; yading@10: prev = 0; yading@10: i = bi->next[prev]; yading@10: for (area = 0; area < 4; area++) { yading@10: bi->prev[area] = prev; yading@10: bi->bit_size[area] = 1; // 4 areas 4 bits for EOB :) yading@10: for (; i < mb_area_start[area+1]; i = bi->next[i]) { yading@10: bi->mb[i] >>= 1; yading@10: yading@10: if (bi->mb[i]) { yading@10: bi->bit_size[area] += dv_rl2vlc_size(i - prev - 1, bi->mb[i]); yading@10: bi->next[prev]= i; yading@10: prev = i; yading@10: } yading@10: } yading@10: } yading@10: bi->next[prev]= i; yading@10: } yading@10: yading@10: return bi->bit_size[0] + bi->bit_size[1] + bi->bit_size[2] + bi->bit_size[3]; yading@10: } yading@10: yading@10: static inline void dv_guess_qnos(EncBlockInfo* blks, int* qnos) yading@10: { yading@10: int size[5]; yading@10: int i, j, k, a, prev, a2; yading@10: EncBlockInfo* b; yading@10: yading@10: size[0] = size[1] = size[2] = size[3] = size[4] = 1 << 24; yading@10: do { yading@10: b = blks; yading@10: for (i = 0; i < 5; i++) { yading@10: if (!qnos[i]) yading@10: continue; yading@10: yading@10: qnos[i]--; yading@10: size[i] = 0; yading@10: for (j = 0; j < 6; j++, b++) { yading@10: for (a = 0; a < 4; a++) { yading@10: if (b->area_q[a] != ff_dv_quant_shifts[qnos[i] + ff_dv_quant_offset[b->cno]][a]) { yading@10: b->bit_size[a] = 1; // 4 areas 4 bits for EOB :) yading@10: b->area_q[a]++; yading@10: prev = b->prev[a]; yading@10: av_assert2(b->next[prev] >= mb_area_start[a+1] || b->mb[prev]); yading@10: for (k = b->next[prev] ; k < mb_area_start[a+1]; k = b->next[k]) { yading@10: b->mb[k] >>= 1; yading@10: if (b->mb[k]) { yading@10: b->bit_size[a] += dv_rl2vlc_size(k - prev - 1, b->mb[k]); yading@10: prev = k; yading@10: } else { yading@10: if (b->next[k] >= mb_area_start[a+1] && b->next[k]<64){ yading@10: for (a2 = a + 1; b->next[k] >= mb_area_start[a2+1]; a2++) yading@10: b->prev[a2] = prev; yading@10: av_assert2(a2 < 4); yading@10: av_assert2(b->mb[b->next[k]]); yading@10: b->bit_size[a2] += dv_rl2vlc_size(b->next[k] - prev - 1, b->mb[b->next[k]]) yading@10: -dv_rl2vlc_size(b->next[k] - k - 1, b->mb[b->next[k]]); yading@10: av_assert2(b->prev[a2] == k && (a2 + 1 >= 4 || b->prev[a2+1] != k)); yading@10: b->prev[a2] = prev; yading@10: } yading@10: b->next[prev] = b->next[k]; yading@10: } yading@10: } yading@10: b->prev[a+1]= prev; yading@10: } yading@10: size[i] += b->bit_size[a]; yading@10: } yading@10: } yading@10: if (vs_total_ac_bits >= size[0] + size[1] + size[2] + size[3] + size[4]) yading@10: return; yading@10: } yading@10: } while (qnos[0]|qnos[1]|qnos[2]|qnos[3]|qnos[4]); yading@10: yading@10: yading@10: for (a = 2; a == 2 || vs_total_ac_bits < size[0]; a += a){ yading@10: b = blks; yading@10: size[0] = 5 * 6 * 4; //EOB yading@10: for (j = 0; j < 6 *5; j++, b++) { yading@10: prev = b->prev[0]; yading@10: for (k = b->next[prev]; k < 64; k = b->next[k]) { yading@10: if (b->mb[k] < a && b->mb[k] > -a){ yading@10: b->next[prev] = b->next[k]; yading@10: }else{ yading@10: size[0] += dv_rl2vlc_size(k - prev - 1, b->mb[k]); yading@10: prev = k; yading@10: } yading@10: } yading@10: } yading@10: } yading@10: } yading@10: yading@10: static int dv_encode_video_segment(AVCodecContext *avctx, void *arg) yading@10: { yading@10: DVVideoContext *s = avctx->priv_data; yading@10: DVwork_chunk *work_chunk = arg; yading@10: int mb_index, i, j; yading@10: int mb_x, mb_y, c_offset, linesize, y_stride; yading@10: uint8_t* y_ptr; yading@10: uint8_t* dif; yading@10: LOCAL_ALIGNED_8(uint8_t, scratch, [128]); yading@10: EncBlockInfo enc_blks[5*DV_MAX_BPM]; yading@10: PutBitContext pbs[5*DV_MAX_BPM]; yading@10: PutBitContext* pb; yading@10: EncBlockInfo* enc_blk; yading@10: int vs_bit_size = 0; yading@10: int qnos[5] = {15, 15, 15, 15, 15}; /* No quantization */ yading@10: int* qnosp = &qnos[0]; yading@10: yading@10: dif = &s->buf[work_chunk->buf_offset*80]; yading@10: enc_blk = &enc_blks[0]; yading@10: for (mb_index = 0; mb_index < 5; mb_index++) { yading@10: dv_calculate_mb_xy(s, work_chunk, mb_index, &mb_x, &mb_y); yading@10: yading@10: /* initializing luminance blocks */ yading@10: if ((s->sys->pix_fmt == AV_PIX_FMT_YUV420P) || yading@10: (s->sys->pix_fmt == AV_PIX_FMT_YUV411P && mb_x >= (704 / 8)) || yading@10: (s->sys->height >= 720 && mb_y != 134)) { yading@10: y_stride = s->picture.linesize[0] << 3; yading@10: } else { yading@10: y_stride = 16; yading@10: } yading@10: y_ptr = s->picture.data[0] + ((mb_y * s->picture.linesize[0] + mb_x) << 3); yading@10: linesize = s->picture.linesize[0]; yading@10: yading@10: if (s->sys->video_stype == 4) { /* SD 422 */ yading@10: vs_bit_size += yading@10: dv_init_enc_block(enc_blk+0, y_ptr , linesize, s, 0) + yading@10: dv_init_enc_block(enc_blk+1, NULL , linesize, s, 0) + yading@10: dv_init_enc_block(enc_blk+2, y_ptr + 8 , linesize, s, 0) + yading@10: dv_init_enc_block(enc_blk+3, NULL , linesize, s, 0); yading@10: } else { yading@10: vs_bit_size += yading@10: dv_init_enc_block(enc_blk+0, y_ptr , linesize, s, 0) + yading@10: dv_init_enc_block(enc_blk+1, y_ptr + 8 , linesize, s, 0) + yading@10: dv_init_enc_block(enc_blk+2, y_ptr + y_stride, linesize, s, 0) + yading@10: dv_init_enc_block(enc_blk+3, y_ptr + 8 + y_stride, linesize, s, 0); yading@10: } yading@10: enc_blk += 4; yading@10: yading@10: /* initializing chrominance blocks */ yading@10: c_offset = (((mb_y >> (s->sys->pix_fmt == AV_PIX_FMT_YUV420P)) * s->picture.linesize[1] + yading@10: (mb_x >> ((s->sys->pix_fmt == AV_PIX_FMT_YUV411P) ? 2 : 1))) << 3); yading@10: for (j = 2; j; j--) { yading@10: uint8_t *c_ptr = s->picture.data[j] + c_offset; yading@10: linesize = s->picture.linesize[j]; yading@10: y_stride = (mb_y == 134) ? 8 : (s->picture.linesize[j] << 3); yading@10: if (s->sys->pix_fmt == AV_PIX_FMT_YUV411P && mb_x >= (704 / 8)) { yading@10: uint8_t* d; yading@10: uint8_t* b = scratch; yading@10: for (i = 0; i < 8; i++) { yading@10: d = c_ptr + (linesize << 3); yading@10: b[0] = c_ptr[0]; b[1] = c_ptr[1]; b[2] = c_ptr[2]; b[3] = c_ptr[3]; yading@10: b[4] = d[0]; b[5] = d[1]; b[6] = d[2]; b[7] = d[3]; yading@10: c_ptr += linesize; yading@10: b += 16; yading@10: } yading@10: c_ptr = scratch; yading@10: linesize = 16; yading@10: } yading@10: yading@10: vs_bit_size += dv_init_enc_block( enc_blk++, c_ptr , linesize, s, 1); yading@10: if (s->sys->bpm == 8) { yading@10: vs_bit_size += dv_init_enc_block(enc_blk++, c_ptr + y_stride, linesize, s, 1); yading@10: } yading@10: } yading@10: } yading@10: yading@10: if (vs_total_ac_bits < vs_bit_size) yading@10: dv_guess_qnos(&enc_blks[0], qnosp); yading@10: yading@10: /* DIF encoding process */ yading@10: for (j=0; j<5*s->sys->bpm;) { yading@10: int start_mb = j; yading@10: yading@10: dif[3] = *qnosp++; yading@10: dif += 4; yading@10: yading@10: /* First pass over individual cells only */ yading@10: for (i=0; isys->bpm; i++, j++) { yading@10: int sz = s->sys->block_sizes[i]>>3; yading@10: yading@10: init_put_bits(&pbs[j], dif, sz); yading@10: put_sbits(&pbs[j], 9, ((enc_blks[j].mb[0] >> 3) - 1024 + 2) >> 2); yading@10: put_bits(&pbs[j], 1, enc_blks[j].dct_mode); yading@10: put_bits(&pbs[j], 2, enc_blks[j].cno); yading@10: yading@10: dv_encode_ac(&enc_blks[j], &pbs[j], &pbs[j+1]); yading@10: dif += sz; yading@10: } yading@10: yading@10: /* Second pass over each MB space */ yading@10: pb = &pbs[start_mb]; yading@10: for (i=0; isys->bpm; i++) { yading@10: if (enc_blks[start_mb+i].partial_bit_count) yading@10: pb = dv_encode_ac(&enc_blks[start_mb+i], pb, &pbs[start_mb+s->sys->bpm]); yading@10: } yading@10: } yading@10: yading@10: /* Third and final pass over the whole video segment space */ yading@10: pb = &pbs[0]; yading@10: for (j=0; j<5*s->sys->bpm; j++) { yading@10: if (enc_blks[j].partial_bit_count) yading@10: pb = dv_encode_ac(&enc_blks[j], pb, &pbs[s->sys->bpm*5]); yading@10: if (enc_blks[j].partial_bit_count) yading@10: av_log(avctx, AV_LOG_ERROR, "ac bitstream overflow\n"); yading@10: } yading@10: yading@10: for (j=0; j<5*s->sys->bpm; j++) { yading@10: int pos; yading@10: int size = pbs[j].size_in_bits >> 3; yading@10: flush_put_bits(&pbs[j]); yading@10: pos = put_bits_count(&pbs[j]) >> 3; yading@10: if (pos > size) { yading@10: av_log(avctx, AV_LOG_ERROR, "bitstream written beyond buffer size\n"); yading@10: return -1; yading@10: } yading@10: memset(pbs[j].buf + pos, 0xff, size - pos); yading@10: } yading@10: yading@10: return 0; yading@10: } yading@10: yading@10: static inline int dv_write_pack(enum dv_pack_type pack_id, DVVideoContext *c, yading@10: uint8_t* buf) yading@10: { yading@10: /* yading@10: * Here's what SMPTE314M says about these two: yading@10: * (page 6) APTn, AP1n, AP2n, AP3n: These data shall be identical yading@10: * as track application IDs (APTn = 001, AP1n = yading@10: * 001, AP2n = 001, AP3n = 001), if the source signal yading@10: * comes from a digital VCR. If the signal source is yading@10: * unknown, all bits for these data shall be set to 1. yading@10: * (page 12) STYPE: STYPE defines a signal type of video signal yading@10: * 00000b = 4:1:1 compression yading@10: * 00100b = 4:2:2 compression yading@10: * XXXXXX = Reserved yading@10: * Now, I've got two problems with these statements: yading@10: * 1. it looks like APT == 111b should be a safe bet, but it isn't. yading@10: * It seems that for PAL as defined in IEC 61834 we have to set yading@10: * APT to 000 and for SMPTE314M to 001. yading@10: * 2. It is not at all clear what STYPE is used for 4:2:0 PAL yading@10: * compression scheme (if any). yading@10: */ yading@10: int apt = (c->sys->pix_fmt == AV_PIX_FMT_YUV420P ? 0 : 1); yading@10: int fs = c->picture.top_field_first ? 0x00 : 0x40; yading@10: yading@10: uint8_t aspect = 0; yading@10: if ((int)(av_q2d(c->avctx->sample_aspect_ratio) * c->avctx->width / c->avctx->height * 10) >= 17) /* 16:9 */ yading@10: aspect = 0x02; yading@10: yading@10: buf[0] = (uint8_t)pack_id; yading@10: switch (pack_id) { yading@10: case dv_header525: /* I can't imagine why these two weren't defined as real */ yading@10: case dv_header625: /* packs in SMPTE314M -- they definitely look like ones */ yading@10: buf[1] = 0xf8 | /* reserved -- always 1 */ yading@10: (apt & 0x07); /* APT: Track application ID */ yading@10: buf[2] = (0 << 7) | /* TF1: audio data is 0 - valid; 1 - invalid */ yading@10: (0x0f << 3) | /* reserved -- always 1 */ yading@10: (apt & 0x07); /* AP1: Audio application ID */ yading@10: buf[3] = (0 << 7) | /* TF2: video data is 0 - valid; 1 - invalid */ yading@10: (0x0f << 3) | /* reserved -- always 1 */ yading@10: (apt & 0x07); /* AP2: Video application ID */ yading@10: buf[4] = (0 << 7) | /* TF3: subcode(SSYB) is 0 - valid; 1 - invalid */ yading@10: (0x0f << 3) | /* reserved -- always 1 */ yading@10: (apt & 0x07); /* AP3: Subcode application ID */ yading@10: break; yading@10: case dv_video_source: yading@10: buf[1] = 0xff; /* reserved -- always 1 */ yading@10: buf[2] = (1 << 7) | /* B/W: 0 - b/w, 1 - color */ yading@10: (1 << 6) | /* following CLF is valid - 0, invalid - 1 */ yading@10: (3 << 4) | /* CLF: color frames ID (see ITU-R BT.470-4) */ yading@10: 0xf; /* reserved -- always 1 */ yading@10: buf[3] = (3 << 6) | /* reserved -- always 1 */ yading@10: (c->sys->dsf << 5) | /* system: 60fields/50fields */ yading@10: c->sys->video_stype; /* signal type video compression */ yading@10: buf[4] = 0xff; /* VISC: 0xff -- no information */ yading@10: break; yading@10: case dv_video_control: yading@10: buf[1] = (0 << 6) | /* Copy generation management (CGMS) 0 -- free */ yading@10: 0x3f; /* reserved -- always 1 */ yading@10: buf[2] = 0xc8 | /* reserved -- always b11001xxx */ yading@10: aspect; yading@10: buf[3] = (1 << 7) | /* frame/field flag 1 -- frame, 0 -- field */ yading@10: fs | /* first/second field flag 0 -- field 2, 1 -- field 1 */ yading@10: (1 << 5) | /* frame change flag 0 -- same picture as before, 1 -- different */ yading@10: (1 << 4) | /* 1 - interlaced, 0 - noninterlaced */ yading@10: 0xc; /* reserved -- always b1100 */ yading@10: buf[4] = 0xff; /* reserved -- always 1 */ yading@10: break; yading@10: default: yading@10: buf[1] = buf[2] = buf[3] = buf[4] = 0xff; yading@10: } yading@10: return 5; yading@10: } yading@10: yading@10: #if CONFIG_DVVIDEO_ENCODER yading@10: static inline int dv_write_dif_id(enum dv_section_type t, uint8_t chan_num, yading@10: uint8_t seq_num, uint8_t dif_num, yading@10: uint8_t* buf) yading@10: { yading@10: buf[0] = (uint8_t)t; /* Section type */ yading@10: buf[1] = (seq_num << 4) | /* DIF seq number 0-9 for 525/60; 0-11 for 625/50 */ yading@10: (chan_num << 3) | /* FSC: for 50Mb/s 0 - first channel; 1 - second */ yading@10: 7; /* reserved -- always 1 */ yading@10: buf[2] = dif_num; /* DIF block number Video: 0-134, Audio: 0-8 */ yading@10: return 3; yading@10: } yading@10: yading@10: yading@10: static inline int dv_write_ssyb_id(uint8_t syb_num, uint8_t fr, uint8_t* buf) yading@10: { yading@10: if (syb_num == 0 || syb_num == 6) { yading@10: buf[0] = (fr << 7) | /* FR ID 1 - first half of each channel; 0 - second */ yading@10: (0 << 4) | /* AP3 (Subcode application ID) */ yading@10: 0x0f; /* reserved -- always 1 */ yading@10: } yading@10: else if (syb_num == 11) { yading@10: buf[0] = (fr << 7) | /* FR ID 1 - first half of each channel; 0 - second */ yading@10: 0x7f; /* reserved -- always 1 */ yading@10: } yading@10: else { yading@10: buf[0] = (fr << 7) | /* FR ID 1 - first half of each channel; 0 - second */ yading@10: (0 << 4) | /* APT (Track application ID) */ yading@10: 0x0f; /* reserved -- always 1 */ yading@10: } yading@10: buf[1] = 0xf0 | /* reserved -- always 1 */ yading@10: (syb_num & 0x0f); /* SSYB number 0 - 11 */ yading@10: buf[2] = 0xff; /* reserved -- always 1 */ yading@10: return 3; yading@10: } yading@10: yading@10: static void dv_format_frame(DVVideoContext* c, uint8_t* buf) yading@10: { yading@10: int chan, i, j, k; yading@10: yading@10: for (chan = 0; chan < c->sys->n_difchan; chan++) { yading@10: for (i = 0; i < c->sys->difseg_size; i++) { yading@10: memset(buf, 0xff, 80 * 6); /* first 6 DIF blocks are for control data */ yading@10: yading@10: /* DV header: 1DIF */ yading@10: buf += dv_write_dif_id(dv_sect_header, chan, i, 0, buf); yading@10: buf += dv_write_pack((c->sys->dsf ? dv_header625 : dv_header525), c, buf); yading@10: buf += 72; /* unused bytes */ yading@10: yading@10: /* DV subcode: 2DIFs */ yading@10: for (j = 0; j < 2; j++) { yading@10: buf += dv_write_dif_id(dv_sect_subcode, chan, i, j, buf); yading@10: for (k = 0; k < 6; k++) yading@10: buf += dv_write_ssyb_id(k, (i < c->sys->difseg_size/2), buf) + 5; yading@10: buf += 29; /* unused bytes */ yading@10: } yading@10: yading@10: /* DV VAUX: 3DIFS */ yading@10: for (j = 0; j < 3; j++) { yading@10: buf += dv_write_dif_id(dv_sect_vaux, chan, i, j, buf); yading@10: buf += dv_write_pack(dv_video_source, c, buf); yading@10: buf += dv_write_pack(dv_video_control, c, buf); yading@10: buf += 7*5; yading@10: buf += dv_write_pack(dv_video_source, c, buf); yading@10: buf += dv_write_pack(dv_video_control, c, buf); yading@10: buf += 4*5 + 2; /* unused bytes */ yading@10: } yading@10: yading@10: /* DV Audio/Video: 135 Video DIFs + 9 Audio DIFs */ yading@10: for (j = 0; j < 135; j++) { yading@10: if (j%15 == 0) { yading@10: memset(buf, 0xff, 80); yading@10: buf += dv_write_dif_id(dv_sect_audio, chan, i, j/15, buf); yading@10: buf += 77; /* audio control & shuffled PCM audio */ yading@10: } yading@10: buf += dv_write_dif_id(dv_sect_video, chan, i, j, buf); yading@10: buf += 77; /* 1 video macroblock: 1 bytes control yading@10: 4 * 14 bytes Y 8x8 data yading@10: 10 bytes Cr 8x8 data yading@10: 10 bytes Cb 8x8 data */ yading@10: } yading@10: } yading@10: } yading@10: } yading@10: yading@10: yading@10: static int dvvideo_encode_frame(AVCodecContext *c, AVPacket *pkt, yading@10: const AVFrame *frame, int *got_packet) yading@10: { yading@10: DVVideoContext *s = c->priv_data; yading@10: int ret; yading@10: yading@10: s->sys = avpriv_dv_codec_profile(c); yading@10: if (!s->sys || ff_dv_init_dynamic_tables(s->sys)) yading@10: return -1; yading@10: if ((ret = ff_alloc_packet2(c, pkt, s->sys->frame_size)) < 0) yading@10: return ret; yading@10: yading@10: c->pix_fmt = s->sys->pix_fmt; yading@10: s->picture = *frame; yading@10: s->picture.key_frame = 1; yading@10: s->picture.pict_type = AV_PICTURE_TYPE_I; yading@10: yading@10: s->buf = pkt->data; yading@10: c->execute(c, dv_encode_video_segment, s->sys->work_chunks, NULL, yading@10: dv_work_pool_size(s->sys), sizeof(DVwork_chunk)); yading@10: yading@10: emms_c(); yading@10: yading@10: dv_format_frame(s, pkt->data); yading@10: yading@10: pkt->flags |= AV_PKT_FLAG_KEY; yading@10: *got_packet = 1; yading@10: yading@10: return 0; yading@10: } yading@10: yading@10: AVCodec ff_dvvideo_encoder = { yading@10: .name = "dvvideo", yading@10: .type = AVMEDIA_TYPE_VIDEO, yading@10: .id = AV_CODEC_ID_DVVIDEO, yading@10: .priv_data_size = sizeof(DVVideoContext), yading@10: .init = dvvideo_init_encoder, yading@10: .encode2 = dvvideo_encode_frame, yading@10: .capabilities = CODEC_CAP_SLICE_THREADS, yading@10: .pix_fmts = (const enum AVPixelFormat[]) { yading@10: AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE yading@10: }, yading@10: .long_name = NULL_IF_CONFIG_SMALL("DV (Digital Video)"), yading@10: }; yading@10: #endif // CONFIG_DVVIDEO_ENCODER