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avcodec/dvenc: support encoding dvcprohd

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This commit is contained in:
Baptiste Coudurier 2019-11-09 15:54:16 -08:00
parent 11a38be99c
commit a1403032c8
9 changed files with 542 additions and 60 deletions
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1
libavcodec/dv.h
View File

@ -83,6 +83,7 @@ enum dv_pack_type {
#define DV_PROFILE_IS_HD(p) ((p)->video_stype & 0x10)
#define DV_PROFILE_IS_1080i50(p) (((p)->video_stype == 0x14) && ((p)->dsf == 1))
#define DV_PROFILE_IS_1080i60(p) (((p)->video_stype == 0x14) && ((p)->dsf == 0))
#define DV_PROFILE_IS_720p50(p) (((p)->video_stype == 0x18) && ((p)->dsf == 1))
/**

563
libavcodec/dvenc.c
View File

@ -60,10 +60,7 @@ static av_cold int dvvideo_encode_init(AVCodecContext *avctx)
ff_dv_print_profiles(avctx, AV_LOG_ERROR);
return AVERROR(EINVAL);
}
if (avctx->height > 576) {
av_log(avctx, AV_LOG_ERROR, "DVCPRO HD encoding is not supported.\n");
return AVERROR_PATCHWELCOME;
}
ret = ff_dv_init_dynamic_tables(s, s->sys);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "Error initializing work tables.\n");
@ -90,6 +87,7 @@ static av_cold int dvvideo_encode_init(AVCodecContext *avctx)
}
/* bit budget for AC only in 5 MBs */
static const int vs_total_ac_bits_hd = (68 * 6 + 52*2) * 5;
static const int vs_total_ac_bits = (100 * 4 + 68 * 2) * 5;
static const int mb_area_start[5] = { 1, 6, 21, 43, 64 };
@ -158,6 +156,11 @@ typedef struct EncBlockInfo {
uint8_t sign[64];
uint8_t partial_bit_count;
uint32_t partial_bit_buffer; /* we can't use uint16_t here */
/* used by DV100 only: a copy of the weighted and classified but
not-yet-quantized AC coefficients. This is necessary for
re-quantizing at different steps. */
int16_t save[64];
int min_qlevel; /* DV100 only: minimum qlevel (for AC coefficients >255) */
} EncBlockInfo;
static av_always_inline PutBitContext *dv_encode_ac(EncBlockInfo *bi,
@ -243,13 +246,123 @@ static const int dv_weight_248[64] = {
170627, 170627, 153560, 153560, 165371, 165371, 144651, 144651,
};
static av_always_inline int dv_init_enc_block(EncBlockInfo *bi, uint8_t *data,
ptrdiff_t linesize,
DVVideoContext *s, int bias)
/* setting this to 1 results in a faster codec but
* somewhat lower image quality */
#define DV100_SACRIFICE_QUALITY_FOR_SPEED 1
#define DV100_ENABLE_FINER 1
/* pack combination of QNO and CNO into a single 8-bit value */
#define DV100_MAKE_QLEVEL(qno,cno) ((qno<<2) | (cno))
#define DV100_QLEVEL_QNO(qlevel) (qlevel>>2)
#define DV100_QLEVEL_CNO(qlevel) (qlevel&0x3)
#define DV100_NUM_QLEVELS 31
/* The quantization step is determined by a combination of QNO and
CNO. We refer to these combinations as "qlevels" (this term is our
own, it's not mentioned in the spec). We use CNO, a multiplier on
the quantization step, to "fill in the gaps" between quantization
steps associated with successive values of QNO. e.g. there is no
QNO for a quantization step of 10, but we can use QNO=5 CNO=1 to
get the same result. The table below encodes combinations of QNO
and CNO in order of increasing quantization coarseness. */
static const uint8_t dv100_qlevels[DV100_NUM_QLEVELS] = {
DV100_MAKE_QLEVEL( 1,0), // 1*1= 1
DV100_MAKE_QLEVEL( 1,0), // 1*1= 1
DV100_MAKE_QLEVEL( 2,0), // 2*1= 2
DV100_MAKE_QLEVEL( 3,0), // 3*1= 3
DV100_MAKE_QLEVEL( 4,0), // 4*1= 4
DV100_MAKE_QLEVEL( 5,0), // 5*1= 5
DV100_MAKE_QLEVEL( 6,0), // 6*1= 6
DV100_MAKE_QLEVEL( 7,0), // 7*1= 7
DV100_MAKE_QLEVEL( 8,0), // 8*1= 8
DV100_MAKE_QLEVEL( 5,1), // 5*2=10
DV100_MAKE_QLEVEL( 6,1), // 6*2=12
DV100_MAKE_QLEVEL( 7,1), // 7*2=14
DV100_MAKE_QLEVEL( 9,0), // 16*1=16
DV100_MAKE_QLEVEL(10,0), // 18*1=18
DV100_MAKE_QLEVEL(11,0), // 20*1=20
DV100_MAKE_QLEVEL(12,0), // 22*1=22
DV100_MAKE_QLEVEL(13,0), // 24*1=24
DV100_MAKE_QLEVEL(14,0), // 28*1=28
DV100_MAKE_QLEVEL( 9,1), // 16*2=32
DV100_MAKE_QLEVEL(10,1), // 18*2=36
DV100_MAKE_QLEVEL(11,1), // 20*2=40
DV100_MAKE_QLEVEL(12,1), // 22*2=44
DV100_MAKE_QLEVEL(13,1), // 24*2=48
DV100_MAKE_QLEVEL(15,0), // 52*1=52
DV100_MAKE_QLEVEL(14,1), // 28*2=56
DV100_MAKE_QLEVEL( 9,2), // 16*4=64
DV100_MAKE_QLEVEL(10,2), // 18*4=72
DV100_MAKE_QLEVEL(11,2), // 20*4=80
DV100_MAKE_QLEVEL(12,2), // 22*4=88
DV100_MAKE_QLEVEL(13,2), // 24*4=96
// ...
DV100_MAKE_QLEVEL(15,3), // 52*8=416
};
static const int dv100_min_bias = 0;
static const int dv100_chroma_bias = 0;
static const int dv100_starting_qno = 1;
#if DV100_SACRIFICE_QUALITY_FOR_SPEED
static const int dv100_qlevel_inc = 4;
#else
static const int dv100_qlevel_inc = 1;
#endif
// 1/qstep, shifted up by 16 bits
static const int dv100_qstep_bits = 16;
static const int dv100_qstep_inv[16] = {
65536, 65536, 32768, 21845, 16384, 13107, 10923, 9362, 8192, 4096, 3641, 3277, 2979, 2731, 2341, 1260,
};
/* DV100 weights are pre-zigzagged, inverted and multiplied by 2^(dv100_weight_shift)
(in DV100 the AC components are divided by the spec weights) */
static const int dv100_weight_shift = 16;
static const int dv_weight_1080[2][64] = {
{ 8192, 65536, 65536, 61681, 61681, 61681, 58254, 58254,
58254, 58254, 58254, 58254, 55188, 58254, 58254, 55188,
55188, 55188, 55188, 55188, 55188, 24966, 27594, 26214,
26214, 26214, 27594, 24966, 23831, 24385, 25575, 25575,
25575, 25575, 24385, 23831, 23302, 23302, 24966, 24966,
24966, 23302, 23302, 21845, 22795, 24385, 24385, 22795,
21845, 21400, 21845, 23831, 21845, 21400, 10382, 10700,
10700, 10382, 10082, 9620, 10082, 9039, 9039, 8525, },
{ 8192, 65536, 65536, 61681, 61681, 61681, 41943, 41943,
41943, 41943, 40330, 41943, 40330, 41943, 40330, 40330,
40330, 38836, 38836, 40330, 40330, 24966, 27594, 26214,
26214, 26214, 27594, 24966, 23831, 24385, 25575, 25575,
25575, 25575, 24385, 23831, 11523, 11523, 12483, 12483,
12483, 11523, 11523, 10923, 11275, 12193, 12193, 11275,
10923, 5323, 5490, 5924, 5490, 5323, 5165, 5323,
5323, 5165, 5017, 4788, 5017, 4520, 4520, 4263, }
};
static const int dv_weight_720[2][64] = {
{ 8192, 65536, 65536, 61681, 61681, 61681, 58254, 58254,
58254, 58254, 58254, 58254, 55188, 58254, 58254, 55188,
55188, 55188, 55188, 55188, 55188, 24966, 27594, 26214,
26214, 26214, 27594, 24966, 23831, 24385, 25575, 25575,
25575, 25575, 24385, 23831, 15420, 15420, 16644, 16644,
16644, 15420, 15420, 10923, 11398, 12193, 12193, 11398,
10923, 10700, 10923, 11916, 10923, 10700, 5191, 5350,
5350, 5191, 5041, 4810, 5041, 4520, 4520, 4263, },
{ 8192, 43691, 43691, 40330, 40330, 40330, 29127, 29127,
29127, 29127, 29127, 29127, 27594, 29127, 29127, 27594,
27594, 27594, 27594, 27594, 27594, 12483, 13797, 13107,
13107, 13107, 13797, 12483, 11916, 12193, 12788, 12788,
12788, 12788, 12193, 11916, 5761, 5761, 6242, 6242,
6242, 5761, 5761, 5461, 5638, 5461, 6096, 5638,
5461, 2661, 2745, 2962, 2745, 2661, 2583, 2661,
2661, 2583, 2509, 2394, 2509, 2260, 2260, 2131, }
};
static av_always_inline int dv_set_class_number_sd(DVVideoContext *s,
int16_t *blk, EncBlockInfo *bi,
const uint8_t *zigzag_scan,
const int *weight, int bias)
{
const int *weight;
const uint8_t *zigzag_scan;
LOCAL_ALIGNED_16(int16_t, blk, [64]);
int i, area;
/* We offer two different methods for class number assignment: the
* method suggested in SMPTE 314M Table 22, and an improved
@ -271,31 +384,8 @@ static av_always_inline int dv_init_enc_block(EncBlockInfo *bi, uint8_t *data,
const unsigned deadzone = s->quant_deadzone;
const unsigned threshold = 2 * deadzone;
av_assert2((((int) blk) & 15) == 0);
bi->area_q[0] =
bi->area_q[1] =
bi->area_q[2] =
bi->area_q[3] = 0;
bi->partial_bit_count = 0;
bi->partial_bit_buffer = 0;
bi->cur_ac = 0;
if (data) {
bi->dct_mode = dv_guess_dct_mode(s, data, linesize);
s->get_pixels(blk, data, linesize);
s->fdct[bi->dct_mode](blk);
} else {
/* We rely on the fact that encoding all zeros leads to an immediate
* EOB, which is precisely what the spec calls for in the "dummy"
* blocks. */
memset(blk, 0, 64 * sizeof(*blk));
bi->dct_mode = 0;
}
bi->mb[0] = blk[0];
zigzag_scan = bi->dct_mode ? ff_dv_zigzag248_direct : ff_zigzag_direct;
weight = bi->dct_mode ? dv_weight_248 : dv_weight_88;
for (area = 0; area < 4; area++) {
bi->prev[area] = prev;
bi->bit_size[area] = 1; // 4 areas 4 bits for EOB :)
@ -350,6 +440,309 @@ static av_always_inline int dv_init_enc_block(EncBlockInfo *bi, uint8_t *data,
bi->bit_size[2] + bi->bit_size[3];
}
/* this function just copies the DCT coefficients and performs
the initial (non-)quantization. */
static inline void dv_set_class_number_hd(DVVideoContext *s,
int16_t *blk, EncBlockInfo *bi,
const uint8_t *zigzag_scan,
const int *weight, int bias)
{
int i, max = 0;
/* the first quantization (none at all) */
bi->area_q[0] = 1;
/* weigh AC components and store to save[] */
/* (i=0 is the DC component; we only include it to make the
number of loop iterations even, for future possible SIMD optimization) */
for (i = 0; i < 64; i += 2) {
int level0, level1;
/* get the AC component (in zig-zag order) */
level0 = blk[zigzag_scan[i+0]];
level1 = blk[zigzag_scan[i+1]];
/* extract sign and make it the lowest bit */
bi->sign[i+0] = (level0>>31)&1;
bi->sign[i+1] = (level1>>31)&1;
/* take absolute value of the level */
level0 = FFABS(level0);
level1 = FFABS(level1);
/* weigh it */
level0 = (level0*weight[i+0] + 4096 + (1<<17)) >> 18;
level1 = (level1*weight[i+1] + 4096 + (1<<17)) >> 18;
/* save unquantized value */
bi->save[i+0] = level0;
bi->save[i+1] = level1;
/* find max component */
if (bi->save[i+0] > max)
max = bi->save[i+0];
if (bi->save[i+1] > max)
max = bi->save[i+1];
}
/* copy DC component */
bi->mb[0] = blk[0];
/* the EOB code is 4 bits */
bi->bit_size[0] = 4;
bi->bit_size[1] = bi->bit_size[2] = bi->bit_size[3] = 0;
/* ensure that no AC coefficients are cut off */
bi->min_qlevel = ((max+256) >> 8);
bi->area_q[0] = 25; /* set to an "impossible" value */
bi->cno = 0;
}
static av_always_inline int dv_init_enc_block(EncBlockInfo* bi, uint8_t *data, int linesize,
DVVideoContext *s, int chroma)
{
LOCAL_ALIGNED_16(int16_t, blk, [64]);
bi->area_q[0] = bi->area_q[1] = bi->area_q[2] = bi->area_q[3] = 0;
bi->partial_bit_count = 0;
bi->partial_bit_buffer = 0;
bi->cur_ac = 0;
if (data) {
if (DV_PROFILE_IS_HD(s->sys)) {
s->get_pixels(blk, data, linesize << bi->dct_mode);
s->fdct[0](blk);
} else {
bi->dct_mode = dv_guess_dct_mode(s, data, linesize);
s->get_pixels(blk, data, linesize);
s->fdct[bi->dct_mode](blk);
}
} else {
/* We rely on the fact that encoding all zeros leads to an immediate EOB,
which is precisely what the spec calls for in the "dummy" blocks. */
memset(blk, 0, 64*sizeof(*blk));
bi->dct_mode = 0;
}
if (DV_PROFILE_IS_HD(s->sys)) {
const int *weights;
if (s->sys->height == 1080) {
weights = dv_weight_1080[chroma];
} else { /* 720p */
weights = dv_weight_720[chroma];
}
dv_set_class_number_hd(s, blk, bi,
ff_zigzag_direct,
weights,
dv100_min_bias+chroma*dv100_chroma_bias);
} else {
dv_set_class_number_sd(s, blk, bi,
bi->dct_mode ? ff_dv_zigzag248_direct : ff_zigzag_direct,
bi->dct_mode ? dv_weight_248 : dv_weight_88,
chroma);
}
return bi->bit_size[0] + bi->bit_size[1] + bi->bit_size[2] + bi->bit_size[3];
}
/* DV100 quantize
Perform quantization by divinding the AC component by the qstep.
As an optimization we use a fixed-point integer multiply instead
of a divide. */
static av_always_inline int dv100_quantize(int level, int qsinv)
{
/* this code is equivalent to */
/* return (level + qs/2) / qs; */
return (level * qsinv + 1024 + (1<<(dv100_qstep_bits-1))) >> dv100_qstep_bits;
/* the extra +1024 is needed to make the rounding come out right. */
/* I (DJM) have verified that the results are exactly the same as
division for level 0-2048 at all QNOs. */
}
static int dv100_actual_quantize(EncBlockInfo *b, int qlevel)
{
int prev, k, qsinv;
int qno = DV100_QLEVEL_QNO(dv100_qlevels[qlevel]);
int cno = DV100_QLEVEL_CNO(dv100_qlevels[qlevel]);
if (b->area_q[0] == qno && b->cno == cno)
return b->bit_size[0];
qsinv = dv100_qstep_inv[qno];
/* record the new qstep */
b->area_q[0] = qno;
b->cno = cno;
/* reset encoded size (EOB = 4 bits) */
b->bit_size[0] = 4;
/* visit nonzero components and quantize */
prev = 0;
for (k = 1; k < 64; k++) {
/* quantize */
int ac = dv100_quantize(b->save[k], qsinv) >> cno;
if (ac) {
if (ac > 255)
ac = 255;
b->mb[k] = ac;
b->bit_size[0] += dv_rl2vlc_size(k - prev - 1, ac);
b->next[prev] = k;
prev = k;
}
}
b->next[prev] = k;
return b->bit_size[0];
}
static inline void dv_guess_qnos_hd(EncBlockInfo *blks, int *qnos)
{
EncBlockInfo *b;
int min_qlevel[5];
int qlevels[5];
int size[5];
int i, j;
/* cache block sizes at hypothetical qlevels */
uint16_t size_cache[5*8][DV100_NUM_QLEVELS] = {{0}};
/* get minimum qlevels */
for (i = 0; i < 5; i++) {
min_qlevel[i] = 1;
for (j = 0; j < 8; j++) {
if (blks[8*i+j].min_qlevel > min_qlevel[i])
min_qlevel[i] = blks[8*i+j].min_qlevel;
}
}
/* initialize sizes */
for (i = 0; i < 5; i++) {
qlevels[i] = dv100_starting_qno;
if (qlevels[i] < min_qlevel[i])
qlevels[i] = min_qlevel[i];
qnos[i] = DV100_QLEVEL_QNO(dv100_qlevels[qlevels[i]]);
size[i] = 0;
for (j = 0; j < 8; j++) {
size_cache[8*i+j][qlevels[i]] = dv100_actual_quantize(&blks[8*i+j], qlevels[i]);
size[i] += size_cache[8*i+j][qlevels[i]];
}
}
/* must we go coarser? */
if (size[0]+size[1]+size[2]+size[3]+size[4] > vs_total_ac_bits_hd) {
int largest = size[0] % 5; /* 'random' number */
int qlevels_done = 0;
do {
/* find the macroblock with the lowest qlevel */
for (i = 0; i < 5; i++) {
if (qlevels[i] < qlevels[largest])
largest = i;
}
i = largest;
/* ensure that we don't enter infinite loop */
largest = (largest+1) % 5;
/* quantize a little bit more */
qlevels[i] += dv100_qlevel_inc;
if (qlevels[i] > DV100_NUM_QLEVELS-1) {
qlevels[i] = DV100_NUM_QLEVELS-1;
qlevels_done++;
}
qnos[i] = DV100_QLEVEL_QNO(dv100_qlevels[qlevels[i]]);
size[i] = 0;
/* for each block */
b = &blks[8*i];
for (j = 0; j < 8; j++, b++) {
/* accumulate block size into macroblock */
if(size_cache[8*i+j][qlevels[i]] == 0) {
/* it is safe to use actual_quantize() here because we only go from finer to coarser,
and it saves the final actual_quantize() down below */
size_cache[8*i+j][qlevels[i]] = dv100_actual_quantize(b, qlevels[i]);
}
size[i] += size_cache[8*i+j][qlevels[i]];
} /* for each block */
} while (vs_total_ac_bits_hd < size[0] + size[1] + size[2] + size[3] + size[4] && qlevels_done < 5);
// can we go finer?
} else if (DV100_ENABLE_FINER &&
size[0]+size[1]+size[2]+size[3]+size[4] < vs_total_ac_bits_hd) {
int save_qlevel;
int largest = size[0] % 5; /* 'random' number */
while (qlevels[0] > min_qlevel[0] ||
qlevels[1] > min_qlevel[1] ||
qlevels[2] > min_qlevel[2] ||
qlevels[3] > min_qlevel[3] ||
qlevels[4] > min_qlevel[4]) {
/* find the macroblock with the highest qlevel */
for (i = 0; i < 5; i++) {
if (qlevels[i] > min_qlevel[i] && qlevels[i] > qlevels[largest])
largest = i;
}
i = largest;
/* ensure that we don't enter infinite loop */
largest = (largest+1) % 5;
if (qlevels[i] <= min_qlevel[i]) {
/* can't unquantize any more */
continue;
}
/* quantize a little bit less */
save_qlevel = qlevels[i];
qlevels[i] -= dv100_qlevel_inc;
if (qlevels[i] < min_qlevel[i])
qlevels[i] = min_qlevel[i];
qnos[i] = DV100_QLEVEL_QNO(dv100_qlevels[qlevels[i]]);
size[i] = 0;
/* for each block */
b = &blks[8*i];
for (j = 0; j < 8; j++, b++) {
/* accumulate block size into macroblock */
if(size_cache[8*i+j][qlevels[i]] == 0) {
size_cache[8*i+j][qlevels[i]] = dv100_actual_quantize(b, qlevels[i]);
}
size[i] += size_cache[8*i+j][qlevels[i]];
} /* for each block */
/* did we bust the limit? */
if (vs_total_ac_bits_hd < size[0] + size[1] + size[2] + size[3] + size[4]) {
/* go back down and exit */
qlevels[i] = save_qlevel;
qnos[i] = DV100_QLEVEL_QNO(dv100_qlevels[qlevels[i]]);
break;
}
}
}
/* now do the actual quantization */
for (i = 0; i < 5; i++) {
/* for each block */
b = &blks[8*i];
size[i] = 0;
for (j = 0; j < 8; j++, b++) {
/* accumulate block size into macroblock */
size[i] += dv100_actual_quantize(b, qlevels[i]);
} /* for each block */
}
}
static inline void dv_guess_qnos(EncBlockInfo *blks, int *qnos)
{
int size[5];
@ -422,6 +815,26 @@ static inline void dv_guess_qnos(EncBlockInfo *blks, int *qnos)
}
}
/* update all cno values into the blocks, over-writing the old values without
touching anything else. (only used for DV100) */
static inline void dv_revise_cnos(uint8_t *dif, EncBlockInfo *blk, const AVDVProfile *profile)
{
uint8_t *data;
int mb_index, i;
for (mb_index = 0; mb_index < 5; mb_index++) {
data = dif + mb_index*80 + 4;
for (i = 0; i < profile->bpm; i++) {
/* zero out the class number */
data[1] &= 0xCF;
/* add the new one */
data[1] |= blk[profile->bpm*mb_index+i].cno << 4;
data += profile->block_sizes[i] >> 3;
}
}
}
static int dv_encode_video_segment(AVCodecContext *avctx, void *arg)
{
DVVideoContext *s = avctx->priv_data;
@ -430,26 +843,38 @@ static int dv_encode_video_segment(AVCodecContext *avctx, void *arg)
int mb_x, mb_y, c_offset;
ptrdiff_t linesize, y_stride;
uint8_t *y_ptr;
uint8_t *dif;
uint8_t *dif, *p;
LOCAL_ALIGNED_8(uint8_t, scratch, [128]);
EncBlockInfo enc_blks[5 * DV_MAX_BPM];
PutBitContext pbs[5 * DV_MAX_BPM];
PutBitContext *pb;
EncBlockInfo *enc_blk;
int vs_bit_size = 0;
int qnos[5] = { 15, 15, 15, 15, 15 }; /* No quantization */
int qnos[5];
int *qnosp = &qnos[0];
dif = &s->buf[work_chunk->buf_offset * 80];
p = dif = &s->buf[work_chunk->buf_offset * 80];
enc_blk = &enc_blks[0];
for (mb_index = 0; mb_index < 5; mb_index++) {
dv_calculate_mb_xy(s, work_chunk, mb_index, &mb_x, &mb_y);
qnos[mb_index] = DV_PROFILE_IS_HD(s->sys) ? 1 : 15;
y_ptr = s->frame->data[0] + ((mb_y * s->frame->linesize[0] + mb_x) << 3);
linesize = s->frame->linesize[0];
if (s->sys->height == 1080 && mb_y < 134)
enc_blk->dct_mode = dv_guess_dct_mode(s, y_ptr, linesize);
else
enc_blk->dct_mode = 0;
for (i = 1; i < 8; i++)
enc_blk[i].dct_mode = enc_blk->dct_mode;
/* initializing luminance blocks */
if ((s->sys->pix_fmt == AV_PIX_FMT_YUV420P) ||
(s->sys->pix_fmt == AV_PIX_FMT_YUV411P && mb_x >= (704 / 8)) ||
(s->sys->height >= 720 && mb_y != 134)) {
y_stride = s->frame->linesize[0] << 3;
y_stride = s->frame->linesize[0] << (3*!enc_blk->dct_mode);
} else {
y_stride = 16;
}
@ -478,7 +903,7 @@ static int dv_encode_video_segment(AVCodecContext *avctx, void *arg)
for (j = 2; j; j--) {
uint8_t *c_ptr = s->frame->data[j] + c_offset;
linesize = s->frame->linesize[j];
y_stride = (mb_y == 134) ? 8 : (s->frame->linesize[j] << 3);
y_stride = (mb_y == 134) ? 8 : (s->frame->linesize[j] << (3*!enc_blk->dct_mode));
if (s->sys->pix_fmt == AV_PIX_FMT_YUV411P && mb_x >= (704 / 8)) {
uint8_t *d;
uint8_t *b = scratch;
@ -506,27 +931,31 @@ static int dv_encode_video_segment(AVCodecContext *avctx, void *arg)
}
}
if (vs_total_ac_bits < vs_bit_size)
if (DV_PROFILE_IS_HD(s->sys)) {
/* unconditional */
dv_guess_qnos_hd(&enc_blks[0], qnosp);
} else if (vs_total_ac_bits < vs_bit_size) {
dv_guess_qnos(&enc_blks[0], qnosp);
}
/* DIF encoding process */
for (j = 0; j < 5 * s->sys->bpm;) {
int start_mb = j;
dif[3] = *qnosp++;
dif += 4;
p[3] = *qnosp++;
p += 4;
/* First pass over individual cells only */
for (i = 0; i < s->sys->bpm; i++, j++) {
int sz = s->sys->block_sizes[i] >> 3;
init_put_bits(&pbs[j], dif, sz);
init_put_bits(&pbs[j], p, sz);
put_sbits(&pbs[j], 9, ((enc_blks[j].mb[0] >> 3) - 1024 + 2) >> 2);
put_bits(&pbs[j], 1, enc_blks[j].dct_mode);
put_bits(&pbs[j], 1, DV_PROFILE_IS_HD(s->sys) && i ? 1 : enc_blks[j].dct_mode);
put_bits(&pbs[j], 2, enc_blks[j].cno);
dv_encode_ac(&enc_blks[j], &pbs[j], &pbs[j + 1]);
dif += sz;
p += sz;
}
/* Second pass over each MB space */
@ -559,6 +988,9 @@ static int dv_encode_video_segment(AVCodecContext *avctx, void *arg)
memset(pbs[j].buf + pos, 0xff, size - pos);
}
if (DV_PROFILE_IS_HD(s->sys))
dv_revise_cnos(dif, enc_blks, s->sys);
return 0;
}
@ -583,12 +1015,19 @@ static inline int dv_write_pack(enum dv_pack_type pack_id, DVVideoContext *c,
* 2. It is not at all clear what STYPE is used for 4:2:0 PAL
* compression scheme (if any).
*/
int apt = (c->sys->pix_fmt == AV_PIX_FMT_YUV420P ? 0 : 1);
int fs = c->frame->top_field_first ? 0x00 : 0x40;
uint8_t aspect = 0;
if ((int) (av_q2d(c->avctx->sample_aspect_ratio) *
c->avctx->width / c->avctx->height * 10) >= 17) /* 16:9 */
int apt = (c->sys->pix_fmt == AV_PIX_FMT_YUV420P ? 0 : 1);
int fs;
if (c->avctx->height >= 720)
fs = c->avctx->height == 720 || c->frame->top_field_first ? 0x40 : 0x00;
else
fs = c->frame->top_field_first ? 0x00 : 0x40;
if (DV_PROFILE_IS_HD(c->sys) ||
(int)(av_q2d(c->avctx->sample_aspect_ratio) *
c->avctx->width / c->avctx->height * 10) >= 17)
/* HD formats are always 16:9 */
aspect = 0x02;
buf[0] = (uint8_t) pack_id;
@ -643,10 +1082,14 @@ static inline int dv_write_dif_id(enum dv_section_type t, uint8_t chan_num,
uint8_t seq_num, uint8_t dif_num,
uint8_t *buf)
{
int fsc = chan_num & 1;
int fsp = 1 - (chan_num >> 1);
buf[0] = (uint8_t) t; /* Section type */
buf[1] = (seq_num << 4) | /* DIF seq number 0-9 for 525/60; 0-11 for 625/50 */
(chan_num << 3) | /* FSC: for 50Mb/s 0 - first channel; 1 - second */
7; /* reserved -- always 1 */
(fsc << 3) | /* FSC: for 50 and 100Mb/s 0 - first channel; 1 - second */
(fsp << 2) | /* FSP: for 100Mb/s 1 - channels 0-1; 0 - channels 2-3 */
3; /* reserved -- always 1 */
buf[2] = dif_num; /* DIF block number Video: 0-134, Audio: 0-8 */
return 3;
}
@ -674,20 +1117,22 @@ static inline int dv_write_ssyb_id(uint8_t syb_num, uint8_t fr, uint8_t *buf)
static void dv_format_frame(DVVideoContext *c, uint8_t *buf)
{
int chan, i, j, k;
/* We work with 720p frames split in half. The odd half-frame is chan 2,3 */
int chan_offset = 2*(c->sys->height == 720 && c->avctx->frame_number & 1);
for (chan = 0; chan < c->sys->n_difchan; chan++) {
for (i = 0; i < c->sys->difseg_size; i++) {
memset(buf, 0xff, 80 * 6); /* first 6 DIF blocks are for control data */
/* DV header: 1DIF */
buf += dv_write_dif_id(dv_sect_header, chan, i, 0, buf);
buf += dv_write_dif_id(dv_sect_header, chan+chan_offset, i, 0, buf);
buf += dv_write_pack((c->sys->dsf ? dv_header625 : dv_header525),
c, buf);
buf += 72; /* unused bytes */
/* DV subcode: 2DIFs */
for (j = 0; j < 2; j++) {
buf += dv_write_dif_id(dv_sect_subcode, chan, i, j, buf);
buf += dv_write_dif_id(dv_sect_subcode, chan+chan_offset, i, j, buf);
for (k = 0; k < 6; k++)
buf += dv_write_ssyb_id(k, (i < c->sys->difseg_size / 2), buf) + 5;
buf += 29; /* unused bytes */
@ -695,7 +1140,7 @@ static void dv_format_frame(DVVideoContext *c, uint8_t *buf)
/* DV VAUX: 3DIFS */
for (j = 0; j < 3; j++) {
buf += dv_write_dif_id(dv_sect_vaux, chan, i, j, buf);
buf += dv_write_dif_id(dv_sect_vaux, chan+chan_offset, i, j, buf);
buf += dv_write_pack(dv_video_source, c, buf);
buf += dv_write_pack(dv_video_control, c, buf);
buf += 7 * 5;
@ -708,10 +1153,10 @@ static void dv_format_frame(DVVideoContext *c, uint8_t *buf)
for (j = 0; j < 135; j++) {
if (j % 15 == 0) {
memset(buf, 0xff, 80);
buf += dv_write_dif_id(dv_sect_audio, chan, i, j / 15, buf);
buf += dv_write_dif_id(dv_sect_audio, chan+chan_offset, i, j/15, buf);
buf += 77; /* audio control & shuffled PCM audio */
}
buf += dv_write_dif_id(dv_sect_video, chan, i, j, buf);
buf += dv_write_dif_id(dv_sect_video, chan+chan_offset, i, j, buf);
buf += 77; /* 1 video macroblock: 1 bytes control
* 4 * 14 bytes Y 8x8 data
* 10 bytes Cr 8x8 data
@ -738,15 +1183,15 @@ FF_DISABLE_DEPRECATION_WARNINGS
c->coded_frame->pict_type = AV_PICTURE_TYPE_I;
FF_ENABLE_DEPRECATION_WARNINGS
#endif
s->buf = pkt->data;
dv_format_frame(s, pkt->data);
c->execute(c, dv_encode_video_segment, s->work_chunks, NULL,
dv_work_pool_size(s->sys), sizeof(DVwork_chunk));
emms_c();
dv_format_frame(s, pkt->data);
pkt->flags |= AV_PKT_FLAG_KEY;
*got_packet = 1;

14
tests/fate/vcodec.mak
View File

@ -135,7 +135,7 @@ fate-vsynth%-dnxhd-hr-hq-mov: ENCOPTS = -s 2kflat -profile:v dnxhr_hq \
fate-vsynth%-dnxhd-hr-hq-mov: DECOPTS = -sws_flags area+accurate_rnd+bitexact
fate-vsynth%-dnxhd-hr-hq-mov: FMT = mov
FATE_VCODEC-$(call ENCDEC, DVVIDEO, DV) += dv dv-411 dv-50
FATE_VCODEC-$(call ENCDEC, DVVIDEO, DV) += dv dv-411 dv-50 dv-hd dv-fhd
fate-vsynth%-dv: CODEC = dvvideo
fate-vsynth%-dv: ENCOPTS = -dct int -s pal
fate-vsynth%-dv: FMT = dv
@ -152,6 +152,18 @@ fate-vsynth%-dv-50: ENCOPTS = -dct int -s pal -pix_fmt yuv422p \
fate-vsynth%-dv-50: DECOPTS = -sws_flags neighbor
fate-vsynth%-dv-50: FMT = dv
fate-vsynth%-dv-fhd: CODEC = dvvideo
fate-vsynth%-dv-fhd: ENCOPTS = -dct int -s 1440x1080 -pix_fmt yuv422p \
-sws_flags neighbor
fate-vsynth%-dv-fhd: DECOPTS = -sws_flags neighbor
fate-vsynth%-dv-fhd: FMT = dv
fate-vsynth%-dv-hd: CODEC = dvvideo
fate-vsynth%-dv-hd: ENCOPTS = -dct int -s 960x720 -pix_fmt yuv422p \
-sws_flags neighbor
fate-vsynth%-dv-hd: DECOPTS = -sws_flags neighbor
fate-vsynth%-dv-hd: FMT = dv
FATE_VCODEC-$(call ENCDEC, FFV1, AVI) += ffv1 ffv1-v0 \
ffv1-v3-yuv420p ffv1-v3-yuv422p10 ffv1-v3-yuv444p16 \
ffv1-v3-bgr0 ffv1-v3-rgb48

4
tests/ref/vsynth/vsynth1-dv-fhd Normal file
View File

@ -0,0 +1,4 @@
74315a8678d12c7f592c02990dc8952d *tests/data/fate/vsynth1-dv-fhd.dv
28800000 tests/data/fate/vsynth1-dv-fhd.dv
c95b309bc128b162e5c8241374eb66a9 *tests/data/fate/vsynth1-dv-fhd.out.rawvideo
stddev: 2.53 PSNR: 40.03 MAXDIFF: 35 bytes: 7603200/ 7603200

4
tests/ref/vsynth/vsynth1-dv-hd Normal file
View File

@ -0,0 +1,4 @@
22d1d62a834fe8416fe79c51760012c1 *tests/data/fate/vsynth1-dv-hd.dv
14400000 tests/data/fate/vsynth1-dv-hd.dv
34b78cf725346c7f819c9d6209b8299a *tests/data/fate/vsynth1-dv-hd.out.rawvideo
stddev: 4.30 PSNR: 35.45 MAXDIFF: 74 bytes: 7603200/ 7603200

4
tests/ref/vsynth/vsynth2-dv-fhd Normal file
View File

@ -0,0 +1,4 @@
1f96ce7c1a5f09ec9d30c51c7271cf77 *tests/data/fate/vsynth2-dv-fhd.dv
28800000 tests/data/fate/vsynth2-dv-fhd.dv
cff30e2430730522bf67c6d94cf1352e *tests/data/fate/vsynth2-dv-fhd.out.rawvideo
stddev: 1.16 PSNR: 46.82 MAXDIFF: 21 bytes: 7603200/ 7603200

4
tests/ref/vsynth/vsynth2-dv-hd Normal file
View File

@ -0,0 +1,4 @@
4270e5d552e0a05193f44bff75c2d271 *tests/data/fate/vsynth2-dv-hd.dv
14400000 tests/data/fate/vsynth2-dv-hd.dv
15dbe911532aca81c67bdd2846419027 *tests/data/fate/vsynth2-dv-hd.out.rawvideo
stddev: 1.75 PSNR: 43.26 MAXDIFF: 34 bytes: 7603200/ 7603200

4
tests/ref/vsynth/vsynth3-dv-fhd Normal file
View File

@ -0,0 +1,4 @@
5b8b7f1dc31d7076af891e94c2e88c06 *tests/data/fate/vsynth3-dv-fhd.dv
28800000 tests/data/fate/vsynth3-dv-fhd.dv
a038ad7c3c09f776304ef7accdea9c74 *tests/data/fate/vsynth3-dv-fhd.out.rawvideo
stddev: 0.00 PSNR:999.99 MAXDIFF: 0 bytes: 86700/ 86700

4
tests/ref/vsynth/vsynth3-dv-hd Normal file
View File

@ -0,0 +1,4 @@
2f81f3ccec178ba2fd9d3e3b46f33670 *tests/data/fate/vsynth3-dv-hd.dv
14400000 tests/data/fate/vsynth3-dv-hd.dv
a038ad7c3c09f776304ef7accdea9c74 *tests/data/fate/vsynth3-dv-hd.out.rawvideo
stddev: 0.00 PSNR:999.99 MAXDIFF: 0 bytes: 86700/ 86700