| /* |
| * Copyright (C) 2016 Open Broadcast Systems Ltd. |
| * Author 2016 Rostislav Pehlivanov <atomnuker@gmail.com> |
| * |
| * 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 |
| */ |
| |
| #include "libavutil/pixdesc.h" |
| #include "libavutil/opt.h" |
| #include "dirac.h" |
| #include "put_bits.h" |
| #include "internal.h" |
| #include "version.h" |
| |
| #include "vc2enc_dwt.h" |
| #include "diractab.h" |
| |
| /* The limited size resolution of each slice forces us to do this */ |
| #define SSIZE_ROUND(b) (FFALIGN((b), s->size_scaler) + 4 + s->prefix_bytes) |
| |
| /* Decides the cutoff point in # of slices to distribute the leftover bytes */ |
| #define SLICE_REDIST_TOTAL 150 |
| |
| typedef struct VC2BaseVideoFormat { |
| enum AVPixelFormat pix_fmt; |
| AVRational time_base; |
| int width, height, interlaced, level; |
| const char *name; |
| } VC2BaseVideoFormat; |
| |
| static const VC2BaseVideoFormat base_video_fmts[] = { |
| { 0 }, /* Custom format, here just to make indexing equal to base_vf */ |
| { AV_PIX_FMT_YUV420P, { 1001, 15000 }, 176, 120, 0, 1, "QSIF525" }, |
| { AV_PIX_FMT_YUV420P, { 2, 25 }, 176, 144, 0, 1, "QCIF" }, |
| { AV_PIX_FMT_YUV420P, { 1001, 15000 }, 352, 240, 0, 1, "SIF525" }, |
| { AV_PIX_FMT_YUV420P, { 2, 25 }, 352, 288, 0, 1, "CIF" }, |
| { AV_PIX_FMT_YUV420P, { 1001, 15000 }, 704, 480, 0, 1, "4SIF525" }, |
| { AV_PIX_FMT_YUV420P, { 2, 25 }, 704, 576, 0, 1, "4CIF" }, |
| |
| { AV_PIX_FMT_YUV422P10, { 1001, 30000 }, 720, 480, 1, 2, "SD480I-60" }, |
| { AV_PIX_FMT_YUV422P10, { 1, 25 }, 720, 576, 1, 2, "SD576I-50" }, |
| |
| { AV_PIX_FMT_YUV422P10, { 1001, 60000 }, 1280, 720, 0, 3, "HD720P-60" }, |
| { AV_PIX_FMT_YUV422P10, { 1, 50 }, 1280, 720, 0, 3, "HD720P-50" }, |
| { AV_PIX_FMT_YUV422P10, { 1001, 30000 }, 1920, 1080, 1, 3, "HD1080I-60" }, |
| { AV_PIX_FMT_YUV422P10, { 1, 25 }, 1920, 1080, 1, 3, "HD1080I-50" }, |
| { AV_PIX_FMT_YUV422P10, { 1001, 60000 }, 1920, 1080, 0, 3, "HD1080P-60" }, |
| { AV_PIX_FMT_YUV422P10, { 1, 50 }, 1920, 1080, 0, 3, "HD1080P-50" }, |
| |
| { AV_PIX_FMT_YUV444P12, { 1, 24 }, 2048, 1080, 0, 4, "DC2K" }, |
| { AV_PIX_FMT_YUV444P12, { 1, 24 }, 4096, 2160, 0, 5, "DC4K" }, |
| |
| { AV_PIX_FMT_YUV422P10, { 1001, 60000 }, 3840, 2160, 0, 6, "UHDTV 4K-60" }, |
| { AV_PIX_FMT_YUV422P10, { 1, 50 }, 3840, 2160, 0, 6, "UHDTV 4K-50" }, |
| |
| { AV_PIX_FMT_YUV422P10, { 1001, 60000 }, 7680, 4320, 0, 7, "UHDTV 8K-60" }, |
| { AV_PIX_FMT_YUV422P10, { 1, 50 }, 7680, 4320, 0, 7, "UHDTV 8K-50" }, |
| |
| { AV_PIX_FMT_YUV422P10, { 1001, 24000 }, 1920, 1080, 0, 3, "HD1080P-24" }, |
| { AV_PIX_FMT_YUV422P10, { 1001, 30000 }, 720, 486, 1, 2, "SD Pro486" }, |
| }; |
| static const int base_video_fmts_len = FF_ARRAY_ELEMS(base_video_fmts); |
| |
| enum VC2_QM { |
| VC2_QM_DEF = 0, |
| VC2_QM_COL, |
| VC2_QM_FLAT, |
| |
| VC2_QM_NB |
| }; |
| |
| typedef struct SubBand { |
| dwtcoef *buf; |
| ptrdiff_t stride; |
| int width; |
| int height; |
| } SubBand; |
| |
| typedef struct Plane { |
| SubBand band[MAX_DWT_LEVELS][4]; |
| dwtcoef *coef_buf; |
| int width; |
| int height; |
| int dwt_width; |
| int dwt_height; |
| ptrdiff_t coef_stride; |
| } Plane; |
| |
| typedef struct SliceArgs { |
| PutBitContext pb; |
| int cache[DIRAC_MAX_QUANT_INDEX]; |
| void *ctx; |
| int x; |
| int y; |
| int quant_idx; |
| int bits_ceil; |
| int bits_floor; |
| int bytes; |
| } SliceArgs; |
| |
| typedef struct TransformArgs { |
| void *ctx; |
| Plane *plane; |
| void *idata; |
| ptrdiff_t istride; |
| int field; |
| VC2TransformContext t; |
| } TransformArgs; |
| |
| typedef struct VC2EncContext { |
| AVClass *av_class; |
| PutBitContext pb; |
| Plane plane[3]; |
| AVCodecContext *avctx; |
| DiracVersionInfo ver; |
| |
| SliceArgs *slice_args; |
| TransformArgs transform_args[3]; |
| |
| /* For conversion from unsigned pixel values to signed */ |
| int diff_offset; |
| int bpp; |
| int bpp_idx; |
| |
| /* Picture number */ |
| uint32_t picture_number; |
| |
| /* Base video format */ |
| int base_vf; |
| int level; |
| int profile; |
| |
| /* Quantization matrix */ |
| uint8_t quant[MAX_DWT_LEVELS][4]; |
| int custom_quant_matrix; |
| |
| /* Division LUT */ |
| uint32_t qmagic_lut[116][2]; |
| |
| int num_x; /* #slices horizontally */ |
| int num_y; /* #slices vertically */ |
| int prefix_bytes; |
| int size_scaler; |
| int chroma_x_shift; |
| int chroma_y_shift; |
| |
| /* Rate control stuff */ |
| int frame_max_bytes; |
| int slice_max_bytes; |
| int slice_min_bytes; |
| int q_ceil; |
| int q_avg; |
| |
| /* Options */ |
| double tolerance; |
| int wavelet_idx; |
| int wavelet_depth; |
| int strict_compliance; |
| int slice_height; |
| int slice_width; |
| int interlaced; |
| enum VC2_QM quant_matrix; |
| |
| /* Parse code state */ |
| uint32_t next_parse_offset; |
| enum DiracParseCodes last_parse_code; |
| } VC2EncContext; |
| |
| static av_always_inline void put_vc2_ue_uint(PutBitContext *pb, uint32_t val) |
| { |
| int i; |
| int pbits = 0, bits = 0, topbit = 1, maxval = 1; |
| |
| if (!val++) { |
| put_bits(pb, 1, 1); |
| return; |
| } |
| |
| while (val > maxval) { |
| topbit <<= 1; |
| maxval <<= 1; |
| maxval |= 1; |
| } |
| |
| bits = ff_log2(topbit); |
| |
| for (i = 0; i < bits; i++) { |
| topbit >>= 1; |
| pbits <<= 2; |
| if (val & topbit) |
| pbits |= 0x1; |
| } |
| |
| put_bits(pb, bits*2 + 1, (pbits << 1) | 1); |
| } |
| |
| static av_always_inline int count_vc2_ue_uint(uint32_t val) |
| { |
| int topbit = 1, maxval = 1; |
| |
| if (!val++) |
| return 1; |
| |
| while (val > maxval) { |
| topbit <<= 1; |
| maxval <<= 1; |
| maxval |= 1; |
| } |
| |
| return ff_log2(topbit)*2 + 1; |
| } |
| |
| /* VC-2 10.4 - parse_info() */ |
| static void encode_parse_info(VC2EncContext *s, enum DiracParseCodes pcode) |
| { |
| uint32_t cur_pos, dist; |
| |
| align_put_bits(&s->pb); |
| |
| cur_pos = put_bits_count(&s->pb) >> 3; |
| |
| /* Magic string */ |
| ff_put_string(&s->pb, "BBCD", 0); |
| |
| /* Parse code */ |
| put_bits(&s->pb, 8, pcode); |
| |
| /* Next parse offset */ |
| dist = cur_pos - s->next_parse_offset; |
| AV_WB32(s->pb.buf + s->next_parse_offset + 5, dist); |
| s->next_parse_offset = cur_pos; |
| put_bits32(&s->pb, pcode == DIRAC_PCODE_END_SEQ ? 13 : 0); |
| |
| /* Last parse offset */ |
| put_bits32(&s->pb, s->last_parse_code == DIRAC_PCODE_END_SEQ ? 13 : dist); |
| |
| s->last_parse_code = pcode; |
| } |
| |
| /* VC-2 11.1 - parse_parameters() |
| * The level dictates what the decoder should expect in terms of resolution |
| * and allows it to quickly reject whatever it can't support. Remember, |
| * this codec kinda targets cheapo FPGAs without much memory. Unfortunately |
| * it also limits us greatly in our choice of formats, hence the flag to disable |
| * strict_compliance */ |
| static void encode_parse_params(VC2EncContext *s) |
| { |
| put_vc2_ue_uint(&s->pb, s->ver.major); /* VC-2 demands this to be 2 */ |
| put_vc2_ue_uint(&s->pb, s->ver.minor); /* ^^ and this to be 0 */ |
| put_vc2_ue_uint(&s->pb, s->profile); /* 3 to signal HQ profile */ |
| put_vc2_ue_uint(&s->pb, s->level); /* 3 - 1080/720, 6 - 4K */ |
| } |
| |
| /* VC-2 11.3 - frame_size() */ |
| static void encode_frame_size(VC2EncContext *s) |
| { |
| put_bits(&s->pb, 1, !s->strict_compliance); |
| if (!s->strict_compliance) { |
| AVCodecContext *avctx = s->avctx; |
| put_vc2_ue_uint(&s->pb, avctx->width); |
| put_vc2_ue_uint(&s->pb, avctx->height); |
| } |
| } |
| |
| /* VC-2 11.3.3 - color_diff_sampling_format() */ |
| static void encode_sample_fmt(VC2EncContext *s) |
| { |
| put_bits(&s->pb, 1, !s->strict_compliance); |
| if (!s->strict_compliance) { |
| int idx; |
| if (s->chroma_x_shift == 1 && s->chroma_y_shift == 0) |
| idx = 1; /* 422 */ |
| else if (s->chroma_x_shift == 1 && s->chroma_y_shift == 1) |
| idx = 2; /* 420 */ |
| else |
| idx = 0; /* 444 */ |
| put_vc2_ue_uint(&s->pb, idx); |
| } |
| } |
| |
| /* VC-2 11.3.4 - scan_format() */ |
| static void encode_scan_format(VC2EncContext *s) |
| { |
| put_bits(&s->pb, 1, !s->strict_compliance); |
| if (!s->strict_compliance) |
| put_vc2_ue_uint(&s->pb, s->interlaced); |
| } |
| |
| /* VC-2 11.3.5 - frame_rate() */ |
| static void encode_frame_rate(VC2EncContext *s) |
| { |
| put_bits(&s->pb, 1, !s->strict_compliance); |
| if (!s->strict_compliance) { |
| AVCodecContext *avctx = s->avctx; |
| put_vc2_ue_uint(&s->pb, 0); |
| put_vc2_ue_uint(&s->pb, avctx->time_base.den); |
| put_vc2_ue_uint(&s->pb, avctx->time_base.num); |
| } |
| } |
| |
| /* VC-2 11.3.6 - aspect_ratio() */ |
| static void encode_aspect_ratio(VC2EncContext *s) |
| { |
| put_bits(&s->pb, 1, !s->strict_compliance); |
| if (!s->strict_compliance) { |
| AVCodecContext *avctx = s->avctx; |
| put_vc2_ue_uint(&s->pb, 0); |
| put_vc2_ue_uint(&s->pb, avctx->sample_aspect_ratio.num); |
| put_vc2_ue_uint(&s->pb, avctx->sample_aspect_ratio.den); |
| } |
| } |
| |
| /* VC-2 11.3.7 - clean_area() */ |
| static void encode_clean_area(VC2EncContext *s) |
| { |
| put_bits(&s->pb, 1, 0); |
| } |
| |
| /* VC-2 11.3.8 - signal_range() */ |
| static void encode_signal_range(VC2EncContext *s) |
| { |
| put_bits(&s->pb, 1, !s->strict_compliance); |
| if (!s->strict_compliance) |
| put_vc2_ue_uint(&s->pb, s->bpp_idx); |
| } |
| |
| /* VC-2 11.3.9 - color_spec() */ |
| static void encode_color_spec(VC2EncContext *s) |
| { |
| AVCodecContext *avctx = s->avctx; |
| put_bits(&s->pb, 1, !s->strict_compliance); |
| if (!s->strict_compliance) { |
| int val; |
| put_vc2_ue_uint(&s->pb, 0); |
| |
| /* primaries */ |
| put_bits(&s->pb, 1, 1); |
| if (avctx->color_primaries == AVCOL_PRI_BT470BG) |
| val = 2; |
| else if (avctx->color_primaries == AVCOL_PRI_SMPTE170M) |
| val = 1; |
| else if (avctx->color_primaries == AVCOL_PRI_SMPTE240M) |
| val = 1; |
| else |
| val = 0; |
| put_vc2_ue_uint(&s->pb, val); |
| |
| /* color matrix */ |
| put_bits(&s->pb, 1, 1); |
| if (avctx->colorspace == AVCOL_SPC_RGB) |
| val = 3; |
| else if (avctx->colorspace == AVCOL_SPC_YCOCG) |
| val = 2; |
| else if (avctx->colorspace == AVCOL_SPC_BT470BG) |
| val = 1; |
| else |
| val = 0; |
| put_vc2_ue_uint(&s->pb, val); |
| |
| /* transfer function */ |
| put_bits(&s->pb, 1, 1); |
| if (avctx->color_trc == AVCOL_TRC_LINEAR) |
| val = 2; |
| else if (avctx->color_trc == AVCOL_TRC_BT1361_ECG) |
| val = 1; |
| else |
| val = 0; |
| put_vc2_ue_uint(&s->pb, val); |
| } |
| } |
| |
| /* VC-2 11.3 - source_parameters() */ |
| static void encode_source_params(VC2EncContext *s) |
| { |
| encode_frame_size(s); |
| encode_sample_fmt(s); |
| encode_scan_format(s); |
| encode_frame_rate(s); |
| encode_aspect_ratio(s); |
| encode_clean_area(s); |
| encode_signal_range(s); |
| encode_color_spec(s); |
| } |
| |
| /* VC-2 11 - sequence_header() */ |
| static void encode_seq_header(VC2EncContext *s) |
| { |
| align_put_bits(&s->pb); |
| encode_parse_params(s); |
| put_vc2_ue_uint(&s->pb, s->base_vf); |
| encode_source_params(s); |
| put_vc2_ue_uint(&s->pb, s->interlaced); /* Frames or fields coding */ |
| } |
| |
| /* VC-2 12.1 - picture_header() */ |
| static void encode_picture_header(VC2EncContext *s) |
| { |
| align_put_bits(&s->pb); |
| put_bits32(&s->pb, s->picture_number++); |
| } |
| |
| /* VC-2 12.3.4.1 - slice_parameters() */ |
| static void encode_slice_params(VC2EncContext *s) |
| { |
| put_vc2_ue_uint(&s->pb, s->num_x); |
| put_vc2_ue_uint(&s->pb, s->num_y); |
| put_vc2_ue_uint(&s->pb, s->prefix_bytes); |
| put_vc2_ue_uint(&s->pb, s->size_scaler); |
| } |
| |
| /* 1st idx = LL, second - vertical, third - horizontal, fourth - total */ |
| const uint8_t vc2_qm_col_tab[][4] = { |
| {20, 9, 15, 4}, |
| { 0, 6, 6, 4}, |
| { 0, 3, 3, 5}, |
| { 0, 3, 5, 1}, |
| { 0, 11, 10, 11} |
| }; |
| |
| const uint8_t vc2_qm_flat_tab[][4] = { |
| { 0, 0, 0, 0}, |
| { 0, 0, 0, 0}, |
| { 0, 0, 0, 0}, |
| { 0, 0, 0, 0}, |
| { 0, 0, 0, 0} |
| }; |
| |
| static void init_quant_matrix(VC2EncContext *s) |
| { |
| int level, orientation; |
| |
| if (s->wavelet_depth <= 4 && s->quant_matrix == VC2_QM_DEF) { |
| s->custom_quant_matrix = 0; |
| for (level = 0; level < s->wavelet_depth; level++) { |
| s->quant[level][0] = ff_dirac_default_qmat[s->wavelet_idx][level][0]; |
| s->quant[level][1] = ff_dirac_default_qmat[s->wavelet_idx][level][1]; |
| s->quant[level][2] = ff_dirac_default_qmat[s->wavelet_idx][level][2]; |
| s->quant[level][3] = ff_dirac_default_qmat[s->wavelet_idx][level][3]; |
| } |
| return; |
| } |
| |
| s->custom_quant_matrix = 1; |
| |
| if (s->quant_matrix == VC2_QM_DEF) { |
| for (level = 0; level < s->wavelet_depth; level++) { |
| for (orientation = 0; orientation < 4; orientation++) { |
| if (level <= 3) |
| s->quant[level][orientation] = ff_dirac_default_qmat[s->wavelet_idx][level][orientation]; |
| else |
| s->quant[level][orientation] = vc2_qm_col_tab[level][orientation]; |
| } |
| } |
| } else if (s->quant_matrix == VC2_QM_COL) { |
| for (level = 0; level < s->wavelet_depth; level++) { |
| for (orientation = 0; orientation < 4; orientation++) { |
| s->quant[level][orientation] = vc2_qm_col_tab[level][orientation]; |
| } |
| } |
| } else { |
| for (level = 0; level < s->wavelet_depth; level++) { |
| for (orientation = 0; orientation < 4; orientation++) { |
| s->quant[level][orientation] = vc2_qm_flat_tab[level][orientation]; |
| } |
| } |
| } |
| } |
| |
| /* VC-2 12.3.4.2 - quant_matrix() */ |
| static void encode_quant_matrix(VC2EncContext *s) |
| { |
| int level; |
| put_bits(&s->pb, 1, s->custom_quant_matrix); |
| if (s->custom_quant_matrix) { |
| put_vc2_ue_uint(&s->pb, s->quant[0][0]); |
| for (level = 0; level < s->wavelet_depth; level++) { |
| put_vc2_ue_uint(&s->pb, s->quant[level][1]); |
| put_vc2_ue_uint(&s->pb, s->quant[level][2]); |
| put_vc2_ue_uint(&s->pb, s->quant[level][3]); |
| } |
| } |
| } |
| |
| /* VC-2 12.3 - transform_parameters() */ |
| static void encode_transform_params(VC2EncContext *s) |
| { |
| put_vc2_ue_uint(&s->pb, s->wavelet_idx); |
| put_vc2_ue_uint(&s->pb, s->wavelet_depth); |
| |
| encode_slice_params(s); |
| encode_quant_matrix(s); |
| } |
| |
| /* VC-2 12.2 - wavelet_transform() */ |
| static void encode_wavelet_transform(VC2EncContext *s) |
| { |
| encode_transform_params(s); |
| align_put_bits(&s->pb); |
| } |
| |
| /* VC-2 12 - picture_parse() */ |
| static void encode_picture_start(VC2EncContext *s) |
| { |
| align_put_bits(&s->pb); |
| encode_picture_header(s); |
| align_put_bits(&s->pb); |
| encode_wavelet_transform(s); |
| } |
| |
| #define QUANT(c, mul, add, shift) (((mul) * (c) + (add)) >> (shift)) |
| |
| /* VC-2 13.5.5.2 - slice_band() */ |
| static void encode_subband(VC2EncContext *s, PutBitContext *pb, int sx, int sy, |
| SubBand *b, int quant) |
| { |
| int x, y; |
| |
| const int left = b->width * (sx+0) / s->num_x; |
| const int right = b->width * (sx+1) / s->num_x; |
| const int top = b->height * (sy+0) / s->num_y; |
| const int bottom = b->height * (sy+1) / s->num_y; |
| |
| dwtcoef *coeff = b->buf + top * b->stride; |
| const uint64_t q_m = ((uint64_t)(s->qmagic_lut[quant][0])) << 2; |
| const uint64_t q_a = s->qmagic_lut[quant][1]; |
| const int q_s = av_log2(ff_dirac_qscale_tab[quant]) + 32; |
| |
| for (y = top; y < bottom; y++) { |
| for (x = left; x < right; x++) { |
| uint32_t c_abs = QUANT(FFABS(coeff[x]), q_m, q_a, q_s); |
| put_vc2_ue_uint(pb, c_abs); |
| if (c_abs) |
| put_bits(pb, 1, coeff[x] < 0); |
| } |
| coeff += b->stride; |
| } |
| } |
| |
| static int count_hq_slice(SliceArgs *slice, int quant_idx) |
| { |
| int x, y; |
| uint8_t quants[MAX_DWT_LEVELS][4]; |
| int bits = 0, p, level, orientation; |
| VC2EncContext *s = slice->ctx; |
| |
| if (slice->cache[quant_idx]) |
| return slice->cache[quant_idx]; |
| |
| bits += 8*s->prefix_bytes; |
| bits += 8; /* quant_idx */ |
| |
| for (level = 0; level < s->wavelet_depth; level++) |
| for (orientation = !!level; orientation < 4; orientation++) |
| quants[level][orientation] = FFMAX(quant_idx - s->quant[level][orientation], 0); |
| |
| for (p = 0; p < 3; p++) { |
| int bytes_start, bytes_len, pad_s, pad_c; |
| bytes_start = bits >> 3; |
| bits += 8; |
| for (level = 0; level < s->wavelet_depth; level++) { |
| for (orientation = !!level; orientation < 4; orientation++) { |
| SubBand *b = &s->plane[p].band[level][orientation]; |
| |
| const int q_idx = quants[level][orientation]; |
| const uint64_t q_m = ((uint64_t)s->qmagic_lut[q_idx][0]) << 2; |
| const uint64_t q_a = s->qmagic_lut[q_idx][1]; |
| const int q_s = av_log2(ff_dirac_qscale_tab[q_idx]) + 32; |
| |
| const int left = b->width * slice->x / s->num_x; |
| const int right = b->width *(slice->x+1) / s->num_x; |
| const int top = b->height * slice->y / s->num_y; |
| const int bottom = b->height *(slice->y+1) / s->num_y; |
| |
| dwtcoef *buf = b->buf + top * b->stride; |
| |
| for (y = top; y < bottom; y++) { |
| for (x = left; x < right; x++) { |
| uint32_t c_abs = QUANT(FFABS(buf[x]), q_m, q_a, q_s); |
| bits += count_vc2_ue_uint(c_abs); |
| bits += !!c_abs; |
| } |
| buf += b->stride; |
| } |
| } |
| } |
| bits += FFALIGN(bits, 8) - bits; |
| bytes_len = (bits >> 3) - bytes_start - 1; |
| pad_s = FFALIGN(bytes_len, s->size_scaler)/s->size_scaler; |
| pad_c = (pad_s*s->size_scaler) - bytes_len; |
| bits += pad_c*8; |
| } |
| |
| slice->cache[quant_idx] = bits; |
| |
| return bits; |
| } |
| |
| /* Approaches the best possible quantizer asymptotically, its kinda exaustive |
| * but we have a LUT to get the coefficient size in bits. Guaranteed to never |
| * overshoot, which is apparently very important when streaming */ |
| static int rate_control(AVCodecContext *avctx, void *arg) |
| { |
| SliceArgs *slice_dat = arg; |
| VC2EncContext *s = slice_dat->ctx; |
| const int top = slice_dat->bits_ceil; |
| const int bottom = slice_dat->bits_floor; |
| int quant_buf[2] = {-1, -1}; |
| int quant = slice_dat->quant_idx, step = 1; |
| int bits_last, bits = count_hq_slice(slice_dat, quant); |
| while ((bits > top) || (bits < bottom)) { |
| const int signed_step = bits > top ? +step : -step; |
| quant = av_clip(quant + signed_step, 0, s->q_ceil-1); |
| bits = count_hq_slice(slice_dat, quant); |
| if (quant_buf[1] == quant) { |
| quant = FFMAX(quant_buf[0], quant); |
| bits = quant == quant_buf[0] ? bits_last : bits; |
| break; |
| } |
| step = av_clip(step/2, 1, (s->q_ceil-1)/2); |
| quant_buf[1] = quant_buf[0]; |
| quant_buf[0] = quant; |
| bits_last = bits; |
| } |
| slice_dat->quant_idx = av_clip(quant, 0, s->q_ceil-1); |
| slice_dat->bytes = SSIZE_ROUND(bits >> 3); |
| return 0; |
| } |
| |
| static int calc_slice_sizes(VC2EncContext *s) |
| { |
| int i, j, slice_x, slice_y, bytes_left = 0; |
| int bytes_top[SLICE_REDIST_TOTAL] = {0}; |
| int64_t total_bytes_needed = 0; |
| int slice_redist_range = FFMIN(SLICE_REDIST_TOTAL, s->num_x*s->num_y); |
| SliceArgs *enc_args = s->slice_args; |
| SliceArgs *top_loc[SLICE_REDIST_TOTAL] = {NULL}; |
| |
| init_quant_matrix(s); |
| |
| for (slice_y = 0; slice_y < s->num_y; slice_y++) { |
| for (slice_x = 0; slice_x < s->num_x; slice_x++) { |
| SliceArgs *args = &enc_args[s->num_x*slice_y + slice_x]; |
| args->ctx = s; |
| args->x = slice_x; |
| args->y = slice_y; |
| args->bits_ceil = s->slice_max_bytes << 3; |
| args->bits_floor = s->slice_min_bytes << 3; |
| memset(args->cache, 0, s->q_ceil*sizeof(*args->cache)); |
| } |
| } |
| |
| /* First pass - determine baseline slice sizes w.r.t. max_slice_size */ |
| s->avctx->execute(s->avctx, rate_control, enc_args, NULL, s->num_x*s->num_y, |
| sizeof(SliceArgs)); |
| |
| for (i = 0; i < s->num_x*s->num_y; i++) { |
| SliceArgs *args = &enc_args[i]; |
| bytes_left += args->bytes; |
| for (j = 0; j < slice_redist_range; j++) { |
| if (args->bytes > bytes_top[j]) { |
| bytes_top[j] = args->bytes; |
| top_loc[j] = args; |
| break; |
| } |
| } |
| } |
| |
| bytes_left = s->frame_max_bytes - bytes_left; |
| |
| /* Second pass - distribute leftover bytes */ |
| while (bytes_left > 0) { |
| int distributed = 0; |
| for (i = 0; i < slice_redist_range; i++) { |
| SliceArgs *args; |
| int bits, bytes, diff, prev_bytes, new_idx; |
| if (bytes_left <= 0) |
| break; |
| if (!top_loc[i] || !top_loc[i]->quant_idx) |
| break; |
| args = top_loc[i]; |
| prev_bytes = args->bytes; |
| new_idx = FFMAX(args->quant_idx - 1, 0); |
| bits = count_hq_slice(args, new_idx); |
| bytes = SSIZE_ROUND(bits >> 3); |
| diff = bytes - prev_bytes; |
| if ((bytes_left - diff) > 0) { |
| args->quant_idx = new_idx; |
| args->bytes = bytes; |
| bytes_left -= diff; |
| distributed++; |
| } |
| } |
| if (!distributed) |
| break; |
| } |
| |
| for (i = 0; i < s->num_x*s->num_y; i++) { |
| SliceArgs *args = &enc_args[i]; |
| total_bytes_needed += args->bytes; |
| s->q_avg = (s->q_avg + args->quant_idx)/2; |
| } |
| |
| return total_bytes_needed; |
| } |
| |
| /* VC-2 13.5.3 - hq_slice */ |
| static int encode_hq_slice(AVCodecContext *avctx, void *arg) |
| { |
| SliceArgs *slice_dat = arg; |
| VC2EncContext *s = slice_dat->ctx; |
| PutBitContext *pb = &slice_dat->pb; |
| const int slice_x = slice_dat->x; |
| const int slice_y = slice_dat->y; |
| const int quant_idx = slice_dat->quant_idx; |
| const int slice_bytes_max = slice_dat->bytes; |
| uint8_t quants[MAX_DWT_LEVELS][4]; |
| int p, level, orientation; |
| |
| /* The reference decoder ignores it, and its typical length is 0 */ |
| memset(put_bits_ptr(pb), 0, s->prefix_bytes); |
| skip_put_bytes(pb, s->prefix_bytes); |
| |
| put_bits(pb, 8, quant_idx); |
| |
| /* Slice quantization (slice_quantizers() in the specs) */ |
| for (level = 0; level < s->wavelet_depth; level++) |
| for (orientation = !!level; orientation < 4; orientation++) |
| quants[level][orientation] = FFMAX(quant_idx - s->quant[level][orientation], 0); |
| |
| /* Luma + 2 Chroma planes */ |
| for (p = 0; p < 3; p++) { |
| int bytes_start, bytes_len, pad_s, pad_c; |
| bytes_start = put_bits_count(pb) >> 3; |
| put_bits(pb, 8, 0); |
| for (level = 0; level < s->wavelet_depth; level++) { |
| for (orientation = !!level; orientation < 4; orientation++) { |
| encode_subband(s, pb, slice_x, slice_y, |
| &s->plane[p].band[level][orientation], |
| quants[level][orientation]); |
| } |
| } |
| align_put_bits(pb); |
| bytes_len = (put_bits_count(pb) >> 3) - bytes_start - 1; |
| if (p == 2) { |
| int len_diff = slice_bytes_max - (put_bits_count(pb) >> 3); |
| pad_s = FFALIGN((bytes_len + len_diff), s->size_scaler)/s->size_scaler; |
| pad_c = (pad_s*s->size_scaler) - bytes_len; |
| } else { |
| pad_s = FFALIGN(bytes_len, s->size_scaler)/s->size_scaler; |
| pad_c = (pad_s*s->size_scaler) - bytes_len; |
| } |
| pb->buf[bytes_start] = pad_s; |
| flush_put_bits(pb); |
| /* vc2-reference uses that padding that decodes to '0' coeffs */ |
| memset(put_bits_ptr(pb), 0xFF, pad_c); |
| skip_put_bytes(pb, pad_c); |
| } |
| |
| return 0; |
| } |
| |
| /* VC-2 13.5.1 - low_delay_transform_data() */ |
| static int encode_slices(VC2EncContext *s) |
| { |
| uint8_t *buf; |
| int slice_x, slice_y, skip = 0; |
| SliceArgs *enc_args = s->slice_args; |
| |
| flush_put_bits(&s->pb); |
| buf = put_bits_ptr(&s->pb); |
| |
| for (slice_y = 0; slice_y < s->num_y; slice_y++) { |
| for (slice_x = 0; slice_x < s->num_x; slice_x++) { |
| SliceArgs *args = &enc_args[s->num_x*slice_y + slice_x]; |
| init_put_bits(&args->pb, buf + skip, args->bytes+s->prefix_bytes); |
| skip += args->bytes; |
| } |
| } |
| |
| s->avctx->execute(s->avctx, encode_hq_slice, enc_args, NULL, s->num_x*s->num_y, |
| sizeof(SliceArgs)); |
| |
| skip_put_bytes(&s->pb, skip); |
| |
| return 0; |
| } |
| |
| /* |
| * Transform basics for a 3 level transform |
| * |---------------------------------------------------------------------| |
| * | LL-0 | HL-0 | | | |
| * |--------|-------| HL-1 | | |
| * | LH-0 | HH-0 | | | |
| * |----------------|-----------------| HL-2 | |
| * | | | | |
| * | LH-1 | HH-1 | | |
| * | | | | |
| * |----------------------------------|----------------------------------| |
| * | | | |
| * | | | |
| * | | | |
| * | LH-2 | HH-2 | |
| * | | | |
| * | | | |
| * | | | |
| * |---------------------------------------------------------------------| |
| * |
| * DWT transforms are generally applied by splitting the image in two vertically |
| * and applying a low pass transform on the left part and a corresponding high |
| * pass transform on the right hand side. This is known as the horizontal filter |
| * stage. |
| * After that, the same operation is performed except the image is divided |
| * horizontally, with the high pass on the lower and the low pass on the higher |
| * side. |
| * Therefore, you're left with 4 subdivisions - known as low-low, low-high, |
| * high-low and high-high. They're referred to as orientations in the decoder |
| * and encoder. |
| * |
| * The LL (low-low) area contains the original image downsampled by the amount |
| * of levels. The rest of the areas can be thought as the details needed |
| * to restore the image perfectly to its original size. |
| */ |
| static int dwt_plane(AVCodecContext *avctx, void *arg) |
| { |
| TransformArgs *transform_dat = arg; |
| VC2EncContext *s = transform_dat->ctx; |
| const void *frame_data = transform_dat->idata; |
| const ptrdiff_t linesize = transform_dat->istride; |
| const int field = transform_dat->field; |
| const Plane *p = transform_dat->plane; |
| VC2TransformContext *t = &transform_dat->t; |
| dwtcoef *buf = p->coef_buf; |
| const int idx = s->wavelet_idx; |
| const int skip = 1 + s->interlaced; |
| |
| int x, y, level, offset; |
| ptrdiff_t pix_stride = linesize >> (s->bpp - 1); |
| |
| if (field == 1) { |
| offset = 0; |
| pix_stride <<= 1; |
| } else if (field == 2) { |
| offset = pix_stride; |
| pix_stride <<= 1; |
| } else { |
| offset = 0; |
| } |
| |
| if (s->bpp == 1) { |
| const uint8_t *pix = (const uint8_t *)frame_data + offset; |
| for (y = 0; y < p->height*skip; y+=skip) { |
| for (x = 0; x < p->width; x++) { |
| buf[x] = pix[x] - s->diff_offset; |
| } |
| memset(&buf[x], 0, (p->coef_stride - p->width)*sizeof(dwtcoef)); |
| buf += p->coef_stride; |
| pix += pix_stride; |
| } |
| } else { |
| const uint16_t *pix = (const uint16_t *)frame_data + offset; |
| for (y = 0; y < p->height*skip; y+=skip) { |
| for (x = 0; x < p->width; x++) { |
| buf[x] = pix[x] - s->diff_offset; |
| } |
| memset(&buf[x], 0, (p->coef_stride - p->width)*sizeof(dwtcoef)); |
| buf += p->coef_stride; |
| pix += pix_stride; |
| } |
| } |
| |
| memset(buf, 0, p->coef_stride * (p->dwt_height - p->height) * sizeof(dwtcoef)); |
| |
| for (level = s->wavelet_depth-1; level >= 0; level--) { |
| const SubBand *b = &p->band[level][0]; |
| t->vc2_subband_dwt[idx](t, p->coef_buf, p->coef_stride, |
| b->width, b->height); |
| } |
| |
| return 0; |
| } |
| |
| static int encode_frame(VC2EncContext *s, AVPacket *avpkt, const AVFrame *frame, |
| const char *aux_data, const int header_size, int field) |
| { |
| int i, ret; |
| int64_t max_frame_bytes; |
| |
| /* Threaded DWT transform */ |
| for (i = 0; i < 3; i++) { |
| s->transform_args[i].ctx = s; |
| s->transform_args[i].field = field; |
| s->transform_args[i].plane = &s->plane[i]; |
| s->transform_args[i].idata = frame->data[i]; |
| s->transform_args[i].istride = frame->linesize[i]; |
| } |
| s->avctx->execute(s->avctx, dwt_plane, s->transform_args, NULL, 3, |
| sizeof(TransformArgs)); |
| |
| /* Calculate per-slice quantizers and sizes */ |
| max_frame_bytes = header_size + calc_slice_sizes(s); |
| |
| if (field < 2) { |
| ret = ff_alloc_packet2(s->avctx, avpkt, |
| max_frame_bytes << s->interlaced, |
| max_frame_bytes << s->interlaced); |
| if (ret) { |
| av_log(s->avctx, AV_LOG_ERROR, "Error getting output packet.\n"); |
| return ret; |
| } |
| init_put_bits(&s->pb, avpkt->data, avpkt->size); |
| } |
| |
| /* Sequence header */ |
| encode_parse_info(s, DIRAC_PCODE_SEQ_HEADER); |
| encode_seq_header(s); |
| |
| /* Encoder version */ |
| if (aux_data) { |
| encode_parse_info(s, DIRAC_PCODE_AUX); |
| ff_put_string(&s->pb, aux_data, 1); |
| } |
| |
| /* Picture header */ |
| encode_parse_info(s, DIRAC_PCODE_PICTURE_HQ); |
| encode_picture_start(s); |
| |
| /* Encode slices */ |
| encode_slices(s); |
| |
| /* End sequence */ |
| encode_parse_info(s, DIRAC_PCODE_END_SEQ); |
| |
| return 0; |
| } |
| |
| static av_cold int vc2_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, |
| const AVFrame *frame, int *got_packet) |
| { |
| int ret = 0; |
| int slice_ceil, sig_size = 256; |
| VC2EncContext *s = avctx->priv_data; |
| const int bitexact = avctx->flags & AV_CODEC_FLAG_BITEXACT; |
| const char *aux_data = bitexact ? "Lavc" : LIBAVCODEC_IDENT; |
| const int aux_data_size = bitexact ? sizeof("Lavc") : sizeof(LIBAVCODEC_IDENT); |
| const int header_size = 100 + aux_data_size; |
| int64_t r_bitrate = avctx->bit_rate >> (s->interlaced); |
| |
| s->avctx = avctx; |
| s->size_scaler = 2; |
| s->prefix_bytes = 0; |
| s->last_parse_code = 0; |
| s->next_parse_offset = 0; |
| |
| /* Rate control */ |
| s->frame_max_bytes = (av_rescale(r_bitrate, s->avctx->time_base.num, |
| s->avctx->time_base.den) >> 3) - header_size; |
| s->slice_max_bytes = slice_ceil = av_rescale(s->frame_max_bytes, 1, s->num_x*s->num_y); |
| |
| /* Find an appropriate size scaler */ |
| while (sig_size > 255) { |
| int r_size = SSIZE_ROUND(s->slice_max_bytes); |
| if (r_size > slice_ceil) { |
| s->slice_max_bytes -= r_size - slice_ceil; |
| r_size = SSIZE_ROUND(s->slice_max_bytes); |
| } |
| sig_size = r_size/s->size_scaler; /* Signalled slize size */ |
| s->size_scaler <<= 1; |
| } |
| |
| s->slice_min_bytes = s->slice_max_bytes - s->slice_max_bytes*(s->tolerance/100.0f); |
| |
| ret = encode_frame(s, avpkt, frame, aux_data, header_size, s->interlaced); |
| if (ret) |
| return ret; |
| if (s->interlaced) { |
| ret = encode_frame(s, avpkt, frame, aux_data, header_size, 2); |
| if (ret) |
| return ret; |
| } |
| |
| flush_put_bits(&s->pb); |
| avpkt->size = put_bits_count(&s->pb) >> 3; |
| |
| *got_packet = 1; |
| |
| return 0; |
| } |
| |
| static av_cold int vc2_encode_end(AVCodecContext *avctx) |
| { |
| int i; |
| VC2EncContext *s = avctx->priv_data; |
| |
| av_log(avctx, AV_LOG_INFO, "Qavg: %i\n", s->q_avg); |
| |
| for (i = 0; i < 3; i++) { |
| ff_vc2enc_free_transforms(&s->transform_args[i].t); |
| av_freep(&s->plane[i].coef_buf); |
| } |
| |
| av_freep(&s->slice_args); |
| |
| return 0; |
| } |
| |
| static av_cold int vc2_encode_init(AVCodecContext *avctx) |
| { |
| Plane *p; |
| SubBand *b; |
| int i, level, o, shift, ret; |
| const AVPixFmtDescriptor *fmt = av_pix_fmt_desc_get(avctx->pix_fmt); |
| const int depth = fmt->comp[0].depth; |
| VC2EncContext *s = avctx->priv_data; |
| |
| s->picture_number = 0; |
| |
| /* Total allowed quantization range */ |
| s->q_ceil = DIRAC_MAX_QUANT_INDEX; |
| |
| s->ver.major = 2; |
| s->ver.minor = 0; |
| s->profile = 3; |
| s->level = 3; |
| |
| s->base_vf = -1; |
| s->strict_compliance = 1; |
| |
| s->q_avg = 0; |
| s->slice_max_bytes = 0; |
| s->slice_min_bytes = 0; |
| |
| /* Mark unknown as progressive */ |
| s->interlaced = !((avctx->field_order == AV_FIELD_UNKNOWN) || |
| (avctx->field_order == AV_FIELD_PROGRESSIVE)); |
| |
| for (i = 0; i < base_video_fmts_len; i++) { |
| const VC2BaseVideoFormat *fmt = &base_video_fmts[i]; |
| if (avctx->pix_fmt != fmt->pix_fmt) |
| continue; |
| if (avctx->time_base.num != fmt->time_base.num) |
| continue; |
| if (avctx->time_base.den != fmt->time_base.den) |
| continue; |
| if (avctx->width != fmt->width) |
| continue; |
| if (avctx->height != fmt->height) |
| continue; |
| if (s->interlaced != fmt->interlaced) |
| continue; |
| s->base_vf = i; |
| s->level = base_video_fmts[i].level; |
| break; |
| } |
| |
| if (s->interlaced) |
| av_log(avctx, AV_LOG_WARNING, "Interlacing enabled!\n"); |
| |
| if ((s->slice_width & (s->slice_width - 1)) || |
| (s->slice_height & (s->slice_height - 1))) { |
| av_log(avctx, AV_LOG_ERROR, "Slice size is not a power of two!\n"); |
| return AVERROR_UNKNOWN; |
| } |
| |
| if ((s->slice_width > avctx->width) || |
| (s->slice_height > avctx->height)) { |
| av_log(avctx, AV_LOG_ERROR, "Slice size is bigger than the image!\n"); |
| return AVERROR_UNKNOWN; |
| } |
| |
| if (s->base_vf <= 0) { |
| if (avctx->strict_std_compliance < FF_COMPLIANCE_STRICT) { |
| s->strict_compliance = s->base_vf = 0; |
| av_log(avctx, AV_LOG_WARNING, "Format does not strictly comply with VC2 specs\n"); |
| } else { |
| av_log(avctx, AV_LOG_WARNING, "Given format does not strictly comply with " |
| "the specifications, decrease strictness to use it.\n"); |
| return AVERROR_UNKNOWN; |
| } |
| } else { |
| av_log(avctx, AV_LOG_INFO, "Selected base video format = %i (%s)\n", |
| s->base_vf, base_video_fmts[s->base_vf].name); |
| } |
| |
| /* Chroma subsampling */ |
| ret = av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_x_shift, &s->chroma_y_shift); |
| if (ret) |
| return ret; |
| |
| /* Bit depth and color range index */ |
| if (depth == 8 && avctx->color_range == AVCOL_RANGE_JPEG) { |
| s->bpp = 1; |
| s->bpp_idx = 1; |
| s->diff_offset = 128; |
| } else if (depth == 8 && (avctx->color_range == AVCOL_RANGE_MPEG || |
| avctx->color_range == AVCOL_RANGE_UNSPECIFIED)) { |
| s->bpp = 1; |
| s->bpp_idx = 2; |
| s->diff_offset = 128; |
| } else if (depth == 10) { |
| s->bpp = 2; |
| s->bpp_idx = 3; |
| s->diff_offset = 512; |
| } else { |
| s->bpp = 2; |
| s->bpp_idx = 4; |
| s->diff_offset = 2048; |
| } |
| |
| /* Planes initialization */ |
| for (i = 0; i < 3; i++) { |
| int w, h; |
| p = &s->plane[i]; |
| p->width = avctx->width >> (i ? s->chroma_x_shift : 0); |
| p->height = avctx->height >> (i ? s->chroma_y_shift : 0); |
| if (s->interlaced) |
| p->height >>= 1; |
| p->dwt_width = w = FFALIGN(p->width, (1 << s->wavelet_depth)); |
| p->dwt_height = h = FFALIGN(p->height, (1 << s->wavelet_depth)); |
| p->coef_stride = FFALIGN(p->dwt_width, 32); |
| p->coef_buf = av_mallocz(p->coef_stride*p->dwt_height*sizeof(dwtcoef)); |
| if (!p->coef_buf) |
| goto alloc_fail; |
| for (level = s->wavelet_depth-1; level >= 0; level--) { |
| w = w >> 1; |
| h = h >> 1; |
| for (o = 0; o < 4; o++) { |
| b = &p->band[level][o]; |
| b->width = w; |
| b->height = h; |
| b->stride = p->coef_stride; |
| shift = (o > 1)*b->height*b->stride + (o & 1)*b->width; |
| b->buf = p->coef_buf + shift; |
| } |
| } |
| |
| /* DWT init */ |
| if (ff_vc2enc_init_transforms(&s->transform_args[i].t, |
| s->plane[i].coef_stride, |
| s->plane[i].dwt_height, |
| s->slice_width, s->slice_height)) |
| goto alloc_fail; |
| } |
| |
| /* Slices */ |
| s->num_x = s->plane[0].dwt_width/s->slice_width; |
| s->num_y = s->plane[0].dwt_height/s->slice_height; |
| |
| s->slice_args = av_calloc(s->num_x*s->num_y, sizeof(SliceArgs)); |
| if (!s->slice_args) |
| goto alloc_fail; |
| |
| for (i = 0; i < 116; i++) { |
| const uint64_t qf = ff_dirac_qscale_tab[i]; |
| const uint32_t m = av_log2(qf); |
| const uint32_t t = (1ULL << (m + 32)) / qf; |
| const uint32_t r = (t*qf + qf) & UINT32_MAX; |
| if (!(qf & (qf - 1))) { |
| s->qmagic_lut[i][0] = 0xFFFFFFFF; |
| s->qmagic_lut[i][1] = 0xFFFFFFFF; |
| } else if (r <= 1 << m) { |
| s->qmagic_lut[i][0] = t + 1; |
| s->qmagic_lut[i][1] = 0; |
| } else { |
| s->qmagic_lut[i][0] = t; |
| s->qmagic_lut[i][1] = t; |
| } |
| } |
| |
| return 0; |
| |
| alloc_fail: |
| vc2_encode_end(avctx); |
| av_log(avctx, AV_LOG_ERROR, "Unable to allocate memory!\n"); |
| return AVERROR(ENOMEM); |
| } |
| |
| #define VC2ENC_FLAGS (AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM) |
| static const AVOption vc2enc_options[] = { |
| {"tolerance", "Max undershoot in percent", offsetof(VC2EncContext, tolerance), AV_OPT_TYPE_DOUBLE, {.dbl = 5.0f}, 0.0f, 45.0f, VC2ENC_FLAGS, "tolerance"}, |
| {"slice_width", "Slice width", offsetof(VC2EncContext, slice_width), AV_OPT_TYPE_INT, {.i64 = 32}, 32, 1024, VC2ENC_FLAGS, "slice_width"}, |
| {"slice_height", "Slice height", offsetof(VC2EncContext, slice_height), AV_OPT_TYPE_INT, {.i64 = 16}, 8, 1024, VC2ENC_FLAGS, "slice_height"}, |
| {"wavelet_depth", "Transform depth", offsetof(VC2EncContext, wavelet_depth), AV_OPT_TYPE_INT, {.i64 = 4}, 1, 5, VC2ENC_FLAGS, "wavelet_depth"}, |
| {"wavelet_type", "Transform type", offsetof(VC2EncContext, wavelet_idx), AV_OPT_TYPE_INT, {.i64 = VC2_TRANSFORM_9_7}, 0, VC2_TRANSFORMS_NB, VC2ENC_FLAGS, "wavelet_idx"}, |
| {"9_7", "Deslauriers-Dubuc (9,7)", 0, AV_OPT_TYPE_CONST, {.i64 = VC2_TRANSFORM_9_7}, INT_MIN, INT_MAX, VC2ENC_FLAGS, "wavelet_idx"}, |
| {"5_3", "LeGall (5,3)", 0, AV_OPT_TYPE_CONST, {.i64 = VC2_TRANSFORM_5_3}, INT_MIN, INT_MAX, VC2ENC_FLAGS, "wavelet_idx"}, |
| {"haar", "Haar (with shift)", 0, AV_OPT_TYPE_CONST, {.i64 = VC2_TRANSFORM_HAAR_S}, INT_MIN, INT_MAX, VC2ENC_FLAGS, "wavelet_idx"}, |
| {"haar_noshift", "Haar (without shift)", 0, AV_OPT_TYPE_CONST, {.i64 = VC2_TRANSFORM_HAAR}, INT_MIN, INT_MAX, VC2ENC_FLAGS, "wavelet_idx"}, |
| {"qm", "Custom quantization matrix", offsetof(VC2EncContext, quant_matrix), AV_OPT_TYPE_INT, {.i64 = VC2_QM_DEF}, 0, VC2_QM_NB, VC2ENC_FLAGS, "quant_matrix"}, |
| {"default", "Default from the specifications", 0, AV_OPT_TYPE_CONST, {.i64 = VC2_QM_DEF}, INT_MIN, INT_MAX, VC2ENC_FLAGS, "quant_matrix"}, |
| {"color", "Prevents low bitrate discoloration", 0, AV_OPT_TYPE_CONST, {.i64 = VC2_QM_COL}, INT_MIN, INT_MAX, VC2ENC_FLAGS, "quant_matrix"}, |
| {"flat", "Optimize for PSNR", 0, AV_OPT_TYPE_CONST, {.i64 = VC2_QM_FLAT}, INT_MIN, INT_MAX, VC2ENC_FLAGS, "quant_matrix"}, |
| {NULL} |
| }; |
| |
| static const AVClass vc2enc_class = { |
| .class_name = "SMPTE VC-2 encoder", |
| .category = AV_CLASS_CATEGORY_ENCODER, |
| .option = vc2enc_options, |
| .item_name = av_default_item_name, |
| .version = LIBAVUTIL_VERSION_INT |
| }; |
| |
| static const AVCodecDefault vc2enc_defaults[] = { |
| { "b", "600000000" }, |
| { NULL }, |
| }; |
| |
| static const enum AVPixelFormat allowed_pix_fmts[] = { |
| AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV444P, |
| AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10, |
| AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, |
| AV_PIX_FMT_NONE |
| }; |
| |
| AVCodec ff_vc2_encoder = { |
| .name = "vc2", |
| .long_name = NULL_IF_CONFIG_SMALL("SMPTE VC-2"), |
| .type = AVMEDIA_TYPE_VIDEO, |
| .id = AV_CODEC_ID_DIRAC, |
| .priv_data_size = sizeof(VC2EncContext), |
| .init = vc2_encode_init, |
| .close = vc2_encode_end, |
| .capabilities = AV_CODEC_CAP_SLICE_THREADS, |
| .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE, |
| .encode2 = vc2_encode_frame, |
| .priv_class = &vc2enc_class, |
| .defaults = vc2enc_defaults, |
| .pix_fmts = allowed_pix_fmts |
| }; |