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avcodec/sheervideo: add interlaced YCbCr(A) 4:4:4:4 8-bit support

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
pull/180/merge
Paul B Mahol 9 years ago
parent 172af20852
commit 131cb675cf
1 changed files with 200 additions and 0 deletions
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  1. 200
      libavcodec/sheervideo.c

200
libavcodec/sheervideo.c
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@ -627,6 +627,44 @@ static const uint8_t l_u_yry10[1024] = {
10, 10, 10, 10, 9, 9, 9, 8, 8, 7, 7, 6, 5, 4, 4, 3,
};
static const uint8_t l_y_ybri[256] = {
3, 3, 4, 4, 5, 5, 6, 6, 6, 7, 7, 7, 7, 7, 8, 8,
8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10,
10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12,
12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14,
14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15,
15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12,
12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10,
10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8,
8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 4, 3,
};
static const uint8_t l_u_ybri[256] = {
1, 3, 5, 6, 8, 8, 9, 10, 10, 11, 11, 12, 12, 13, 13, 13,
14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14,
14, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 8, 8, 6, 5, 2,
};
static void decode_ca4p(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb)
{
SheerVideoContext *s = avctx->priv_data;
@ -1244,6 +1282,74 @@ static void decode_byry(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb)
}
}
static void decode_ybri(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb)
{
SheerVideoContext *s = avctx->priv_data;
uint8_t *dst_y, *dst_u, *dst_v;
int x, y;
dst_y = p->data[0];
dst_u = p->data[1];
dst_v = p->data[2];
if (get_bits1(gb)) {
for (x = 0; x < avctx->width; x++) {
dst_y[x] = get_bits(gb, 8);
dst_u[x] = get_bits(gb, 8);
dst_v[x] = get_bits(gb, 8);
}
} else {
int pred[4] = { 125, -128, -128, -128 };
for (x = 0; x < avctx->width; x++) {
int y, u, v;
y = get_vlc2(gb, s->vlc[0].table, s->vlc[0].bits, 2);
u = get_vlc2(gb, s->vlc[1].table, s->vlc[1].bits, 2);
v = get_vlc2(gb, s->vlc[1].table, s->vlc[1].bits, 2);
dst_y[x] = pred[0] = (y + pred[0]) & 0xff;
dst_u[x] = pred[1] = (u + pred[1]) & 0xff;
dst_v[x] = pred[2] = (v + pred[2]) & 0xff;
}
}
dst_y += p->linesize[0];
dst_u += p->linesize[1];
dst_v += p->linesize[2];
for (y = 1; y < avctx->height; y++) {
if (get_bits1(gb)) {
for (x = 0; x < avctx->width; x++) {
dst_y[x] = get_bits(gb, 8);
dst_u[x] = get_bits(gb, 8);
dst_v[x] = get_bits(gb, 8);
}
} else {
int pred_L[4];
int y, u, v;
pred_L[0] = dst_y[-p->linesize[0]];
pred_L[1] = dst_u[-p->linesize[1]];
pred_L[2] = dst_v[-p->linesize[2]];
for (x = 0; x < avctx->width; x++) {
y = get_vlc2(gb, s->vlc[0].table, s->vlc[0].bits, 2);
u = get_vlc2(gb, s->vlc[1].table, s->vlc[1].bits, 2);
v = get_vlc2(gb, s->vlc[1].table, s->vlc[1].bits, 2);
dst_y[x] = pred_L[0] = (y + pred_L[0]) & 0xff;
dst_u[x] = pred_L[1] = (u + pred_L[1]) & 0xff;
dst_v[x] = pred_L[2] = (v + pred_L[2]) & 0xff;
}
}
dst_y += p->linesize[0];
dst_u += p->linesize[1];
dst_v += p->linesize[2];
}
}
static void decode_ybr(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb)
{
SheerVideoContext *s = avctx->priv_data;
@ -1320,6 +1426,84 @@ static void decode_ybr(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb)
}
}
static void decode_aybri(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb)
{
SheerVideoContext *s = avctx->priv_data;
uint8_t *dst_a, *dst_y, *dst_u, *dst_v;
int x, y;
dst_a = p->data[3];
dst_y = p->data[0];
dst_u = p->data[1];
dst_v = p->data[2];
if (get_bits1(gb)) {
for (x = 0; x < avctx->width; x++) {
dst_a[x] = get_bits(gb, 8);
dst_y[x] = get_bits(gb, 8);
dst_u[x] = get_bits(gb, 8);
dst_v[x] = get_bits(gb, 8);
}
} else {
int pred[4] = { 125, 125, -128, -128 };
for (x = 0; x < avctx->width; x++) {
int a, y, u, v;
a = get_vlc2(gb, s->vlc[1].table, s->vlc[1].bits, 2);
y = get_vlc2(gb, s->vlc[0].table, s->vlc[0].bits, 2);
u = get_vlc2(gb, s->vlc[1].table, s->vlc[1].bits, 2);
v = get_vlc2(gb, s->vlc[1].table, s->vlc[1].bits, 2);
dst_a[x] = pred[0] = (a + pred[0]) & 0xff;
dst_y[x] = pred[1] = (y + pred[1]) & 0xff;
dst_u[x] = pred[2] = (u + pred[2]) & 0xff;
dst_v[x] = pred[3] = (v + pred[3]) & 0xff;
}
}
dst_a += p->linesize[3];
dst_y += p->linesize[0];
dst_u += p->linesize[1];
dst_v += p->linesize[2];
for (y = 1; y < avctx->height; y++) {
if (get_bits1(gb)) {
for (x = 0; x < avctx->width; x++) {
dst_a[x] = get_bits(gb, 8);
dst_y[x] = get_bits(gb, 8);
dst_u[x] = get_bits(gb, 8);
dst_v[x] = get_bits(gb, 8);
}
} else {
int pred_L[4];
int a, y, u, v;
pred_L[0] = dst_a[-p->linesize[3]];
pred_L[1] = dst_y[-p->linesize[0]];
pred_L[2] = dst_u[-p->linesize[1]];
pred_L[3] = dst_v[-p->linesize[2]];
for (x = 0; x < avctx->width; x++) {
a = get_vlc2(gb, s->vlc[1].table, s->vlc[1].bits, 2);
y = get_vlc2(gb, s->vlc[0].table, s->vlc[0].bits, 2);
u = get_vlc2(gb, s->vlc[1].table, s->vlc[1].bits, 2);
v = get_vlc2(gb, s->vlc[1].table, s->vlc[1].bits, 2);
dst_a[x] = pred_L[0] = (a + pred_L[0]) & 0xff;
dst_y[x] = pred_L[1] = (y + pred_L[1]) & 0xff;
dst_u[x] = pred_L[2] = (u + pred_L[2]) & 0xff;
dst_v[x] = pred_L[3] = (v + pred_L[3]) & 0xff;
}
}
dst_a += p->linesize[3];
dst_y += p->linesize[0];
dst_u += p->linesize[1];
dst_v += p->linesize[2];
}
}
static void decode_aybr(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb)
{
SheerVideoContext *s = avctx->priv_data;
@ -1939,6 +2123,14 @@ static int decode_frame(AVCodecContext *avctx,
build_vlc(&s->vlc[1], l_u_ybr, 256);
}
break;
case MKTAG('A', 'y', 'b', 'R'):
avctx->pix_fmt = AV_PIX_FMT_YUVA444P;
s->decode_frame = decode_aybri;
if (s->format != format) {
build_vlc(&s->vlc[0], l_y_ybri, 256);
build_vlc(&s->vlc[1], l_u_ybri, 256);
}
break;
case MKTAG(' ', 'Y', 'b', 'R'):
avctx->pix_fmt = AV_PIX_FMT_YUV444P;
s->decode_frame = decode_ybr;
@ -1947,6 +2139,14 @@ static int decode_frame(AVCodecContext *avctx,
build_vlc(&s->vlc[1], l_u_ybr, 256);
}
break;
case MKTAG(' ', 'y', 'b', 'R'):
avctx->pix_fmt = AV_PIX_FMT_YUV444P;
s->decode_frame = decode_ybri;
if (s->format != format) {
build_vlc(&s->vlc[0], l_y_ybri, 256);
build_vlc(&s->vlc[1], l_u_ybri, 256);
}
break;
case MKTAG('Y', 'B', 'R', 0x0a):
avctx->pix_fmt = AV_PIX_FMT_YUV444P10;
s->decode_frame = decode_ybr10;

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