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ffmpeg.wasm-core
Commit 0281d5ec authored by Paul B Mahol's avatar Paul B Mahol
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avcodec/magicyuv: add 12 bit formats 

Signed-off-by: 's avatarPaul B Mahol <onemda@gmail.com>
parent fa3fd7f5
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Showing with 88 additions and 19 deletions
libavcodec/magicyuv.c
View file @ 0281d5ec
......@@ -53,6 +53,7 @@ typedef struct HuffEntry {
typedef struct MagicYUVContext {
AVFrame *p;
int max;
int bps;
int slice_height;
int nb_slices;
int planes; // number of encoded planes in bitstream
......@@ -65,7 +66,7 @@ typedef struct MagicYUVContext {
int vshift[4];
Slice *slices[4]; // slice bitstream positions for each plane
unsigned int slices_size[4]; // slice sizes for each plane
uint8_t len[4][1024]; // table of code lengths for each plane
uint8_t len[4][4096]; // table of code lengths for each plane
VLC vlc[4]; // VLC for each plane
int (*huff_build)(VLC *vlc, uint8_t *len);
int (*magy_decode_slice)(AVCodecContext *avctx, void *tdata,
......@@ -85,6 +86,12 @@ static int huff_cmp_len10(const void *a, const void *b)
return (aa->len - bb->len) * 1024 + aa->sym - bb->sym;
}
static int huff_cmp_len12(const void *a, const void *b)
{
const HuffEntry *aa = a, *bb = b;
return (aa->len - bb->len) * 4096 + aa->sym - bb->sym;
}
static int huff_build10(VLC *vlc, uint8_t *len)
{
HuffEntry he[1024];
......@@ -117,6 +124,38 @@ static int huff_build10(VLC *vlc, uint8_t *len)
syms, sizeof(*syms), sizeof(*syms), 0);
}
static int huff_build12(VLC *vlc, uint8_t *len)
{
HuffEntry he[4096];
uint32_t codes[4096];
uint8_t bits[4096];
uint16_t syms[4096];
uint32_t code;
int i;
for (i = 0; i < 4096; i++) {
he[i].sym = 4095 - i;
he[i].len = len[i];
if (len[i] == 0)
return AVERROR_INVALIDDATA;
}
AV_QSORT(he, 4096, HuffEntry, huff_cmp_len12);
code = 1;
for (i = 4095; i >= 0; i--) {
codes[i] = code >> (32 - he[i].len);
bits[i] = he[i].len;
syms[i] = he[i].sym;
code += 0x80000000u >> (he[i].len - 1);
}
ff_free_vlc(vlc);
return ff_init_vlc_sparse(vlc, FFMIN(he[4095].len, 14), 4096,
bits, sizeof(*bits), sizeof(*bits),
codes, sizeof(*codes), sizeof(*codes),
syms, sizeof(*syms), sizeof(*syms), 0);
}
static int huff_build(VLC *vlc, uint8_t *len)
{
HuffEntry he[256];
......@@ -149,9 +188,9 @@ static int huff_build(VLC *vlc, uint8_t *len)
syms, sizeof(*syms), sizeof(*syms), 0);
}
static void magicyuv_median_pred10(uint16_t *dst, const uint16_t *src1,
static void magicyuv_median_pred16(uint16_t *dst, const uint16_t *src1,
const uint16_t *diff, intptr_t w,
int *left, int *left_top)
int *left, int *left_top, int max)
{
int i;
uint16_t l, lt;
......@@ -161,7 +200,7 @@ static void magicyuv_median_pred10(uint16_t *dst, const uint16_t *src1,
for (i = 0; i < w; i++) {
l = mid_pred(l, src1[i], (l + src1[i] - lt)) + diff[i];
l &= 0x3FF;
l &= max;
lt = src1[i];
dst[i] = l;
}
......@@ -175,6 +214,8 @@ static int magy_decode_slice10(AVCodecContext *avctx, void *tdata,
{
MagicYUVContext *s = avctx->priv_data;
int interlaced = s->interlaced;
const int bps = s->bps;
const int max = s->max - 1;
AVFrame *p = s->p;
int i, k, x;
GetBitContext gb;
......@@ -201,7 +242,7 @@ static int magy_decode_slice10(AVCodecContext *avctx, void *tdata,
if (flags & 1) {
for (k = 0; k < height; k++) {
for (x = 0; x < width; x++)
dst[x] = get_bits(&gb, 10);
dst[x] = get_bits(&gb, bps);
dst += stride;
}
......@@ -216,7 +257,7 @@ static int magy_decode_slice10(AVCodecContext *avctx, void *tdata,
if (pix < 0)
return AVERROR_INVALIDDATA;
dst[x] = 1023 - pix;
dst[x] = max - pix;
}
dst += stride;
}
......@@ -225,36 +266,36 @@ static int magy_decode_slice10(AVCodecContext *avctx, void *tdata,
switch (pred) {
case LEFT:
dst = (uint16_t *)p->data[i] + j * sheight * stride;
s->llviddsp.add_left_pred_int16(dst, dst, 1023, width, 0);
s->llviddsp.add_left_pred_int16(dst, dst, max, width, 0);
dst += stride;
if (interlaced) {
s->llviddsp.add_left_pred_int16(dst, dst, 1023, width, 0);
s->llviddsp.add_left_pred_int16(dst, dst, max, width, 0);
dst += stride;
}
for (k = 1 + interlaced; k < height; k++) {
s->llviddsp.add_left_pred_int16(dst, dst, 1023, width, dst[-fake_stride]);
s->llviddsp.add_left_pred_int16(dst, dst, max, width, dst[-fake_stride]);
dst += stride;
}
break;
case GRADIENT:
dst = (uint16_t *)p->data[i] + j * sheight * stride;
s->llviddsp.add_left_pred_int16(dst, dst, 1023, width, 0);
s->llviddsp.add_left_pred_int16(dst, dst, max, width, 0);
left = lefttop = 0;
dst += stride;
if (interlaced) {
s->llviddsp.add_left_pred_int16(dst, dst, 1023, width, 0);
s->llviddsp.add_left_pred_int16(dst, dst, max, width, 0);
left = lefttop = 0;
dst += stride;
}
for (k = 1 + interlaced; k < height; k++) {
top = dst[-fake_stride];
left = top + dst[0];
dst[0] = left & 0x3FF;
dst[0] = left & max;
for (x = 1; x < width; x++) {
top = dst[x - fake_stride];
lefttop = dst[x - (fake_stride + 1)];
left += top - lefttop + dst[x];
dst[x] = left & 0x3FF;
dst[x] = left & max;
}
dst += stride;
}
......@@ -262,15 +303,15 @@ static int magy_decode_slice10(AVCodecContext *avctx, void *tdata,
case MEDIAN:
dst = (uint16_t *)p->data[i] + j * sheight * stride;
lefttop = left = dst[0];
s->llviddsp.add_left_pred_int16(dst, dst, 1023, width, 0);
s->llviddsp.add_left_pred_int16(dst, dst, max, width, 0);
dst += stride;
if (interlaced) {
lefttop = left = dst[0];
s->llviddsp.add_left_pred_int16(dst, dst, 1023, width, 0);
s->llviddsp.add_left_pred_int16(dst, dst, max, width, 0);
dst += stride;
}
for (k = 1 + interlaced; k < height; k++) {
magicyuv_median_pred10(dst, dst - fake_stride, dst, width, &left, &lefttop);
magicyuv_median_pred16(dst, dst - fake_stride, dst, width, &left, &lefttop, max);
lefttop = left = dst[0];
dst += stride;
}
......@@ -289,8 +330,8 @@ static int magy_decode_slice10(AVCodecContext *avctx, void *tdata,
for (i = 0; i < height; i++) {
for (k = 0; k < width; k++) {
b[k] = (b[k] + g[k]) & 0x3FF;
r[k] = (r[k] + g[k]) & 0x3FF;
b[k] = (b[k] + g[k]) & max;
r[k] = (r[k] + g[k]) & max;
}
b += p->linesize[0] / 2;
g += p->linesize[1] / 2;
......@@ -458,6 +499,7 @@ static int build_huffman(AVCodecContext *avctx, GetBitContext *gbit, int max)
break;
}
} else if (j > max) {
av_log(avctx, AV_LOG_ERROR, "Invalid Huffman codes\n");
return AVERROR_INVALIDDATA;
}
}
......@@ -505,6 +547,7 @@ static int magy_decode_frame(AVCodecContext *avctx, void *data,
s->vshift[2] = 0;
s->decorrelate = 0;
s->max = 256;
s->bps = 8;
s->huff_build = huff_build;
s->magy_decode_slice = magy_decode_slice;
......@@ -546,6 +589,7 @@ static int magy_decode_frame(AVCodecContext *avctx, void *data,
s->max = 1024;
s->huff_build = huff_build10;
s->magy_decode_slice = magy_decode_slice10;
s->bps = 10;
break;
case 0x6d:
avctx->pix_fmt = AV_PIX_FMT_GBRP10;
......@@ -553,6 +597,7 @@ static int magy_decode_frame(AVCodecContext *avctx, void *data,
s->max = 1024;
s->huff_build = huff_build10;
s->magy_decode_slice = magy_decode_slice10;
s->bps = 10;
break;
case 0x6e:
avctx->pix_fmt = AV_PIX_FMT_GBRAP10;
......@@ -560,12 +605,30 @@ static int magy_decode_frame(AVCodecContext *avctx, void *data,
s->max = 1024;
s->huff_build = huff_build10;
s->magy_decode_slice = magy_decode_slice10;
s->bps = 10;
break;
case 0x6f:
avctx->pix_fmt = AV_PIX_FMT_GBRP12;
s->decorrelate = 1;
s->max = 4096;
s->huff_build = huff_build12;
s->magy_decode_slice = magy_decode_slice10;
s->bps = 12;
break;
case 0x70:
avctx->pix_fmt = AV_PIX_FMT_GBRAP12;
s->decorrelate = 1;
s->max = 4096;
s->huff_build = huff_build12;
s->magy_decode_slice = magy_decode_slice10;
s->bps = 12;
break;
case 0x73:
avctx->pix_fmt = AV_PIX_FMT_GRAY10;
s->max = 1024;
s->huff_build = huff_build10;
s->magy_decode_slice = magy_decode_slice10;
s->bps = 10;
break;
default:
avpriv_request_sample(avctx, "Format 0x%X", format);
......@@ -663,7 +726,9 @@ static int magy_decode_frame(AVCodecContext *avctx, void *data,
if (avctx->pix_fmt == AV_PIX_FMT_GBRP ||
avctx->pix_fmt == AV_PIX_FMT_GBRAP ||
avctx->pix_fmt == AV_PIX_FMT_GBRP10 ||
avctx->pix_fmt == AV_PIX_FMT_GBRAP10) {
avctx->pix_fmt == AV_PIX_FMT_GBRAP10||
avctx->pix_fmt == AV_PIX_FMT_GBRAP12||
avctx->pix_fmt == AV_PIX_FMT_GBRP12) {
FFSWAP(uint8_t*, p->data[0], p->data[1]);
FFSWAP(int, p->linesize[0], p->linesize[1]);
} else {
......
libavformat/isom.c
View file @ 0281d5ec
......@@ -289,6 +289,8 @@ const AVCodecTag ff_codec_movvideo_tags[] = {
{ AV_CODEC_ID_MAGICYUV, MKTAG('M', '8', 'Y', '2') },
{ AV_CODEC_ID_MAGICYUV, MKTAG('M', '8', 'Y', '4') },
{ AV_CODEC_ID_MAGICYUV, MKTAG('M', '8', 'Y', 'A') },
{ AV_CODEC_ID_MAGICYUV, MKTAG('M', '2', 'R', 'A') },
{ AV_CODEC_ID_MAGICYUV, MKTAG('M', '2', 'R', 'G') },
{ AV_CODEC_ID_SHEERVIDEO, MKTAG('S', 'h', 'r', '0') },
{ AV_CODEC_ID_SHEERVIDEO, MKTAG('S', 'h', 'r', '1') },
......
libavformat/riff.c
View file @ 0281d5ec
......@@ -447,6 +447,8 @@ const AVCodecTag ff_codec_bmp_tags[] = {
{ AV_CODEC_ID_MAGICYUV, MKTAG('M', '0', 'R', 'G') },
{ AV_CODEC_ID_MAGICYUV, MKTAG('M', '0', 'G', '0') },
{ AV_CODEC_ID_MAGICYUV, MKTAG('M', '0', 'Y', '2') },
{ AV_CODEC_ID_MAGICYUV, MKTAG('M', '2', 'R', 'A') },
{ AV_CODEC_ID_MAGICYUV, MKTAG('M', '2', 'R', 'G') },
{ AV_CODEC_ID_YLC, MKTAG('Y', 'L', 'C', '0') },
{ AV_CODEC_ID_SPEEDHQ, MKTAG('S', 'H', 'Q', '0') },
{ AV_CODEC_ID_SPEEDHQ, MKTAG('S', 'H', 'Q', '1') },
......
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