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From: IndecisiveTurtle <geoster3d@gmail.com>
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Subject: [FFmpeg-devel] [PATCH v3 1/5] libavcodec/vc2enc: Split out common
functions between software and hardware encoders
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From: IndecisiveTurtle <geoster3d@gmail.com>
---
libavcodec/Makefile | 2 +-
libavcodec/vc2enc.c | 513 +------------------------------------
libavcodec/vc2enc_common.c | 376 +++++++++++++++++++++++++++
libavcodec/vc2enc_common.h | 196 ++++++++++++++
4 files changed, 581 insertions(+), 506 deletions(-)
create mode 100644 libavcodec/vc2enc_common.c
create mode 100644 libavcodec/vc2enc_common.h
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 7bd1dbec9a..d4ebd86866 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -769,7 +769,7 @@ OBJS-$(CONFIG_VC1_CUVID_DECODER) += cuviddec.o
OBJS-$(CONFIG_VC1_MMAL_DECODER) += mmaldec.o
OBJS-$(CONFIG_VC1_QSV_DECODER) += qsvdec.o
OBJS-$(CONFIG_VC1_V4L2M2M_DECODER) += v4l2_m2m_dec.o
-OBJS-$(CONFIG_VC2_ENCODER) += vc2enc.o vc2enc_dwt.o diractab.o
+OBJS-$(CONFIG_VC2_ENCODER) += vc2enc.o vc2enc_dwt.o vc2enc_common.o diractab.o
OBJS-$(CONFIG_VCR1_DECODER) += vcr1.o
OBJS-$(CONFIG_VMDAUDIO_DECODER) += vmdaudio.o
OBJS-$(CONFIG_VMDVIDEO_DECODER) += vmdvideo.o
diff --git a/libavcodec/vc2enc.c b/libavcodec/vc2enc.c
index d05df64911..2e849eb09e 100644
--- a/libavcodec/vc2enc.c
+++ b/libavcodec/vc2enc.c
@@ -30,504 +30,7 @@
#include "put_bits.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;
- uint8_t interlaced, level;
- char name[13];
-} 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 {
- const struct VC2EncContext *ctx;
- union {
- int cache[DIRAC_MAX_QUANT_INDEX];
- uint8_t *buf;
- };
- int x;
- int y;
- int quant_idx;
- int bits_ceil;
- int bits_floor;
- int bytes;
-} SliceArgs;
-
-typedef struct TransformArgs {
- const struct VC2EncContext *ctx;
- Plane *plane;
- const 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;
-
-/// x_k x_{k-1} ... x_0 -> 0 x_k 0 x_{k - 1} ... 0 x_0
-static uint16_t interleaved_ue_golomb_tab[256];
-/// 1 x_{k-1} ... x_0 -> 0 0 0 x_{k - 1} ... 0 x_0
-static uint16_t top_interleaved_ue_golomb_tab[256];
-/// 1 x_{k-1} ... x_0 -> 2 * k
-static uint8_t golomb_len_tab[256];
-
-static av_cold void vc2_init_static_data(void)
-{
- interleaved_ue_golomb_tab[1] = 1;
- for (unsigned i = 2; i < 256; ++i) {
- golomb_len_tab[i] = golomb_len_tab[i >> 1] + 2;
- interleaved_ue_golomb_tab[i] = (interleaved_ue_golomb_tab[i >> 1] << 2) | (i & 1);
- top_interleaved_ue_golomb_tab[i] = interleaved_ue_golomb_tab[i] ^ (1 << golomb_len_tab[i]);
- }
-}
-
-static av_always_inline void put_vc2_ue_uint_inline(PutBitContext *pb, uint32_t val)
-{
- uint64_t pbits = 1;
- int bits = 1;
-
- ++val;
-
- while (val >> 8) {
- pbits |= (uint64_t)interleaved_ue_golomb_tab[val & 0xff] << bits;
- val >>= 8;
- bits += 16;
- }
- pbits |= (uint64_t)top_interleaved_ue_golomb_tab[val] << bits;
- bits += golomb_len_tab[val];
-
- put_bits63(pb, bits, pbits);
-}
-
-static av_noinline void put_vc2_ue_uint(PutBitContext *pb, uint32_t val)
-{
- put_vc2_ue_uint_inline(pb, val);
-}
-
-static av_always_inline int count_vc2_ue_uint(uint32_t val)
-{
- return 2 * av_log2(val + 1) + 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_bytes_count(&s->pb, 0);
-
- /* 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 */
-static 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}
-};
-
-static 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);
-}
+#include "vc2enc_common.h"
#define QUANT(c, mul, add, shift) (((mul) * (c) + (add)) >> (shift))
@@ -657,7 +160,7 @@ static int calc_slice_sizes(VC2EncContext *s)
SliceArgs *enc_args = s->slice_args;
SliceArgs *top_loc[SLICE_REDIST_TOTAL] = {NULL};
- init_quant_matrix(s);
+ vc2_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++) {
@@ -930,24 +433,24 @@ static int encode_frame(VC2EncContext *s, AVPacket *avpkt, const AVFrame *frame,
}
/* Sequence header */
- encode_parse_info(s, DIRAC_PCODE_SEQ_HEADER);
- encode_seq_header(s);
+ vc2_encode_parse_info(s, DIRAC_PCODE_SEQ_HEADER);
+ vc2_encode_seq_header(s);
/* Encoder version */
if (aux_data) {
- encode_parse_info(s, DIRAC_PCODE_AUX);
+ vc2_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);
+ vc2_encode_parse_info(s, DIRAC_PCODE_PICTURE_HQ);
+ vc2_encode_picture_start(s);
/* Encode slices */
encode_slices(s);
/* End sequence */
- encode_parse_info(s, DIRAC_PCODE_END_SEQ);
+ vc2_encode_parse_info(s, DIRAC_PCODE_END_SEQ);
return 0;
}
diff --git a/libavcodec/vc2enc_common.c b/libavcodec/vc2enc_common.c
new file mode 100644
index 0000000000..7452e9fd8a
--- /dev/null
+++ b/libavcodec/vc2enc_common.c
@@ -0,0 +1,376 @@
+/*
+ * 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 "vc2enc_common.h"
+
+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" },
+};
+const int base_video_fmts_len = FF_ARRAY_ELEMS(base_video_fmts);
+
+/// x_k x_{k-1} ... x_0 -> 0 x_k 0 x_{k - 1} ... 0 x_0
+uint16_t interleaved_ue_golomb_tab[256];
+/// 1 x_{k-1} ... x_0 -> 0 0 0 x_{k - 1} ... 0 x_0
+uint16_t top_interleaved_ue_golomb_tab[256];
+/// 1 x_{k-1} ... x_0 -> 2 * k
+uint8_t golomb_len_tab[256];
+
+av_cold void vc2_init_static_data(void)
+{
+ interleaved_ue_golomb_tab[1] = 1;
+ for (unsigned i = 2; i < 256; ++i) {
+ golomb_len_tab[i] = golomb_len_tab[i >> 1] + 2;
+ interleaved_ue_golomb_tab[i] = (interleaved_ue_golomb_tab[i >> 1] << 2) | (i & 1);
+ top_interleaved_ue_golomb_tab[i] = interleaved_ue_golomb_tab[i] ^ (1 << golomb_len_tab[i]);
+ }
+}
+
+void put_vc2_ue_uint(PutBitContext *pb, uint32_t val)
+{
+ put_vc2_ue_uint_inline(pb, val);
+}
+
+/* VC-2 10.4 - parse_info() */
+void vc2_encode_parse_info(VC2EncContext *s, enum DiracParseCodes pcode)
+{
+ uint32_t cur_pos, dist;
+
+ align_put_bits(&s->pb);
+
+ cur_pos = put_bytes_count(&s->pb, 0);
+
+ /* 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);
+
+ cur_pos = put_bytes_count(&s->pb, 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() */
+void vc2_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 */
+static 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}
+};
+
+static 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}
+};
+
+void vc2_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() */
+void vc2_encode_picture_start(VC2EncContext *s)
+{
+ align_put_bits(&s->pb);
+ encode_picture_header(s);
+ align_put_bits(&s->pb);
+ encode_wavelet_transform(s);
+}
diff --git a/libavcodec/vc2enc_common.h b/libavcodec/vc2enc_common.h
new file mode 100644
index 0000000000..eaaf5ac99c
--- /dev/null
+++ b/libavcodec/vc2enc_common.h
@@ -0,0 +1,196 @@
+/*
+ * 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
+ */
+
+#ifndef AVCODEC_VC2ENC_COMMON_H
+#define AVCODEC_VC2ENC_COMMON_H
+
+#include "avcodec.h"
+#include "dirac.h"
+#include "put_bits.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;
+ uint8_t interlaced, level;
+ char name[13];
+} VC2BaseVideoFormat;
+
+extern const VC2BaseVideoFormat base_video_fmts[];
+extern const int base_video_fmts_len;
+
+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;
+ int shift;
+} 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 {
+ const struct VC2EncContext *ctx;
+ union {
+ int cache[DIRAC_MAX_QUANT_INDEX];
+ uint8_t *buf;
+ };
+ int x;
+ int y;
+ int quant_idx;
+ int bits_ceil;
+ int bits_floor;
+ int bytes;
+} SliceArgs;
+
+typedef struct TransformArgs {
+ const struct VC2EncContext *ctx;
+ Plane *plane;
+ const 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;
+
+extern uint16_t interleaved_ue_golomb_tab[256];
+extern uint16_t top_interleaved_ue_golomb_tab[256];
+extern uint8_t golomb_len_tab[256];
+
+static inline void put_vc2_ue_uint_inline(PutBitContext *pb, uint32_t val)
+{
+ uint64_t pbits = 1;
+ int bits = 1;
+
+ ++val;
+
+ while (val >> 8) {
+ pbits |= (uint64_t)interleaved_ue_golomb_tab[val & 0xff] << bits;
+ val >>= 8;
+ bits += 16;
+ }
+ pbits |= (uint64_t)top_interleaved_ue_golomb_tab[val] << bits;
+ bits += golomb_len_tab[val];
+
+ put_bits63(pb, bits, pbits);
+}
+
+static inline int count_vc2_ue_uint(uint32_t val)
+{
+ return 2 * av_log2(val + 1) + 1;
+}
+
+av_cold void vc2_init_static_data(void);
+
+void put_vc2_ue_uint(PutBitContext *pb, uint32_t val);
+
+void vc2_init_quant_matrix(VC2EncContext *s);
+
+void vc2_encode_parse_info(VC2EncContext *s, enum DiracParseCodes pcode);
+
+void vc2_encode_seq_header(VC2EncContext *s);
+
+void vc2_encode_picture_start(VC2EncContext *s);
+
+#endif
--
2.49.0
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