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ffmpeg.wasm-core
Commit 92b32664 authored by Paul B Mahol's avatar Paul B Mahol
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avcodec/utvideodec: add support for UMH2, UMY2, UMH4, UMY4, UMRA, UMRG 

These are new modes which are supposed to be more SIMD friendly.
Signed-off-by: 's avatarPaul B Mahol <onemda@gmail.com>
parent 41e51fbc
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Showing with 189 additions and 39 deletions
libavcodec/utvideo.h
View file @ 92b32664
......@@ -72,17 +72,23 @@ typedef struct UtvideoContext {
LLVidDSPContext llviddsp;
LLVidEncDSPContext llvidencdsp;
uint32_t frame_info_size, flags, frame_info;
uint32_t frame_info_size, flags, frame_info, offset;
int planes;
int slices;
int compression;
int interlaced;
int frame_pred;
int pro;
int pack;
ptrdiff_t slice_stride;
uint8_t *slice_bits, *slice_buffer[4];
int slice_bits_size;
const uint8_t *packed_stream[4][256];
size_t packed_stream_size[4][256];
const uint8_t *control_stream[4][256];
size_t control_stream_size[4][256];
} UtvideoContext;
typedef struct HuffEntry {
......
libavcodec/utvideodec.c
View file @ 92b32664
......@@ -247,9 +247,50 @@ static int decode_plane(UtvideoContext *c, int plane_no,
int sstart, send;
VLC vlc;
GetBitContext gb;
int prev, fsym;
int ret, prev, fsym;
const int cmask = compute_cmask(plane_no, c->interlaced, c->avctx->pix_fmt);
if (c->pack) {
send = 0;
for (slice = 0; slice < c->slices; slice++) {
GetBitContext cbit, pbit;
uint8_t *dest, *p;
ret = init_get_bits8(&cbit, c->control_stream[plane_no][slice], c->control_stream_size[plane_no][slice]);
if (ret < 0)
return ret;
ret = init_get_bits8(&pbit, c->packed_stream[plane_no][slice], c->packed_stream_size[plane_no][slice]);
if (ret < 0)
return ret;
sstart = send;
send = (height * (slice + 1) / c->slices) & cmask;
dest = dst + sstart * stride;
for (p = dest; p < dst + send * stride; p += 8) {
int bits = get_bits_le(&cbit, 3);
if (bits == 0) {
*(uint64_t *) p = 0;
} else {
uint32_t sub = 0x80 >> (8 - (bits + 1)), add;
int k;
for (k = 0; k < 8; k++) {
p[k] = get_bits_le(&pbit, bits + 1);
add = (~p[k] & sub) << (8 - bits);
p[k] -= sub;
p[k] += add;
}
}
}
}
return 0;
}
if (build_huff(src, &vlc, &fsym)) {
av_log(c->avctx, AV_LOG_ERROR, "Cannot build Huffman codes\n");
return AVERROR_INVALIDDATA;
......@@ -566,7 +607,58 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
/* parse plane structure to get frame flags and validate slice offsets */
bytestream2_init(&gb, buf, buf_size);
if (c->pro) {
if (c->pack) {
const uint8_t *packed_stream;
const uint8_t *control_stream;
GetByteContext pb;
uint32_t nb_cbs;
int left;
c->frame_info = PRED_GRADIENT << 8;
if (bytestream2_get_byte(&gb) != 1)
return AVERROR_INVALIDDATA;
bytestream2_skip(&gb, 3);
c->offset = bytestream2_get_le32(&gb);
if (buf_size <= c->offset + 8LL)
return AVERROR_INVALIDDATA;
bytestream2_init(&pb, buf + 8 + c->offset, buf_size - 8 - c->offset);
nb_cbs = bytestream2_get_le32(&pb);
if (nb_cbs > c->offset)
return AVERROR_INVALIDDATA;
packed_stream = buf + 8;
control_stream = packed_stream + (c->offset - nb_cbs);
left = control_stream - packed_stream;
for (i = 0; i < c->planes; i++) {
for (j = 0; j < c->slices; j++) {
c->packed_stream[i][j] = packed_stream;
c->packed_stream_size[i][j] = bytestream2_get_le32(&pb);
left -= c->packed_stream_size[i][j];
if (left < 0)
return AVERROR_INVALIDDATA;
packed_stream += c->packed_stream_size[i][j];
}
}
left = buf + buf_size - control_stream;
for (i = 0; i < c->planes; i++) {
for (j = 0; j < c->slices; j++) {
c->control_stream[i][j] = control_stream;
c->control_stream_size[i][j] = bytestream2_get_le32(&pb);
left -= c->control_stream_size[i][j];
if (left < 0)
return AVERROR_INVALIDDATA;
control_stream += c->control_stream_size[i][j];
}
}
} else if (c->pro) {
if (bytestream2_get_bytes_left(&gb) < c->frame_info_size) {
av_log(avctx, AV_LOG_ERROR, "Not enough data for frame information\n");
return AVERROR_INVALIDDATA;
......@@ -635,12 +727,14 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
max_slice_size += 4*avctx->width;
av_fast_malloc(&c->slice_bits, &c->slice_bits_size,
max_slice_size + AV_INPUT_BUFFER_PADDING_SIZE);
if (!c->pack) {
av_fast_malloc(&c->slice_bits, &c->slice_bits_size,
max_slice_size + AV_INPUT_BUFFER_PADDING_SIZE);
if (!c->slice_bits) {
av_log(avctx, AV_LOG_ERROR, "Cannot allocate temporary buffer\n");
return AVERROR(ENOMEM);
if (!c->slice_bits) {
av_log(avctx, AV_LOG_ERROR, "Cannot allocate temporary buffer\n");
return AVERROR(ENOMEM);
}
}
switch (c->avctx->pix_fmt) {
......@@ -819,37 +913,6 @@ static av_cold int decode_init(AVCodecContext *avctx)
ff_bswapdsp_init(&c->bdsp);
ff_llviddsp_init(&c->llviddsp);
if (avctx->extradata_size >= 16) {
av_log(avctx, AV_LOG_DEBUG, "Encoder version %d.%d.%d.%d\n",
avctx->extradata[3], avctx->extradata[2],
avctx->extradata[1], avctx->extradata[0]);
av_log(avctx, AV_LOG_DEBUG, "Original format %"PRIX32"\n",
AV_RB32(avctx->extradata + 4));
c->frame_info_size = AV_RL32(avctx->extradata + 8);
c->flags = AV_RL32(avctx->extradata + 12);
if (c->frame_info_size != 4)
avpriv_request_sample(avctx, "Frame info not 4 bytes");
av_log(avctx, AV_LOG_DEBUG, "Encoding parameters %08"PRIX32"\n", c->flags);
c->slices = (c->flags >> 24) + 1;
c->compression = c->flags & 1;
c->interlaced = c->flags & 0x800;
} else if (avctx->extradata_size == 8) {
av_log(avctx, AV_LOG_DEBUG, "Encoder version %d.%d.%d.%d\n",
avctx->extradata[3], avctx->extradata[2],
avctx->extradata[1], avctx->extradata[0]);
av_log(avctx, AV_LOG_DEBUG, "Original format %"PRIX32"\n",
AV_RB32(avctx->extradata + 4));
c->interlaced = 0;
c->pro = 1;
c->frame_info_size = 4;
} else {
av_log(avctx, AV_LOG_ERROR,
"Insufficient extradata size %d, should be at least 16\n",
avctx->extradata_size);
return AVERROR_INVALIDDATA;
}
c->slice_bits_size = 0;
switch (avctx->codec_tag) {
......@@ -903,12 +966,87 @@ static av_cold int decode_init(AVCodecContext *avctx)
avctx->pix_fmt = AV_PIX_FMT_YUV444P;
avctx->colorspace = AVCOL_SPC_BT709;
break;
case MKTAG('U', 'M', 'Y', '2'):
c->planes = 3;
c->pack = 1;
avctx->pix_fmt = AV_PIX_FMT_YUV422P;
avctx->colorspace = AVCOL_SPC_BT470BG;
break;
case MKTAG('U', 'M', 'H', '2'):
c->planes = 3;
c->pack = 1;
avctx->pix_fmt = AV_PIX_FMT_YUV422P;
avctx->colorspace = AVCOL_SPC_BT709;
break;
case MKTAG('U', 'M', 'Y', '4'):
c->planes = 3;
c->pack = 1;
avctx->pix_fmt = AV_PIX_FMT_YUV444P;
avctx->colorspace = AVCOL_SPC_BT470BG;
break;
case MKTAG('U', 'M', 'H', '4'):
c->planes = 3;
c->pack = 1;
avctx->pix_fmt = AV_PIX_FMT_YUV444P;
avctx->colorspace = AVCOL_SPC_BT709;
break;
case MKTAG('U', 'M', 'R', 'G'):
c->planes = 3;
c->pack = 1;
avctx->pix_fmt = AV_PIX_FMT_GBRP;
break;
case MKTAG('U', 'M', 'R', 'A'):
c->planes = 4;
c->pack = 1;
avctx->pix_fmt = AV_PIX_FMT_GBRAP;
break;
default:
av_log(avctx, AV_LOG_ERROR, "Unknown Ut Video FOURCC provided (%08X)\n",
avctx->codec_tag);
return AVERROR_INVALIDDATA;
}
if (c->pack && avctx->extradata_size >= 16) {
av_log(avctx, AV_LOG_DEBUG, "Encoder version %d.%d.%d.%d\n",
avctx->extradata[3], avctx->extradata[2],
avctx->extradata[1], avctx->extradata[0]);
av_log(avctx, AV_LOG_DEBUG, "Original format %"PRIX32"\n",
AV_RB32(avctx->extradata + 4));
c->compression = avctx->extradata[8];
if (c->compression != 2)
avpriv_request_sample(avctx, "Unknown compression type");
c->slices = avctx->extradata[9] + 1;
} else if (avctx->extradata_size >= 16) {
av_log(avctx, AV_LOG_DEBUG, "Encoder version %d.%d.%d.%d\n",
avctx->extradata[3], avctx->extradata[2],
avctx->extradata[1], avctx->extradata[0]);
av_log(avctx, AV_LOG_DEBUG, "Original format %"PRIX32"\n",
AV_RB32(avctx->extradata + 4));
c->frame_info_size = AV_RL32(avctx->extradata + 8);
c->flags = AV_RL32(avctx->extradata + 12);
if (c->frame_info_size != 4)
avpriv_request_sample(avctx, "Frame info not 4 bytes");
av_log(avctx, AV_LOG_DEBUG, "Encoding parameters %08"PRIX32"\n", c->flags);
c->slices = (c->flags >> 24) + 1;
c->compression = c->flags & 1;
c->interlaced = c->flags & 0x800;
} else if (avctx->extradata_size == 8) {
av_log(avctx, AV_LOG_DEBUG, "Encoder version %d.%d.%d.%d\n",
avctx->extradata[3], avctx->extradata[2],
avctx->extradata[1], avctx->extradata[0]);
av_log(avctx, AV_LOG_DEBUG, "Original format %"PRIX32"\n",
AV_RB32(avctx->extradata + 4));
c->interlaced = 0;
c->pro = 1;
c->frame_info_size = 4;
} else {
av_log(avctx, AV_LOG_ERROR,
"Insufficient extradata size %d, should be at least 16\n",
avctx->extradata_size);
return AVERROR_INVALIDDATA;
}
return 0;
}
......
libavformat/riff.c
View file @ 92b32664
......@@ -404,6 +404,12 @@ const AVCodecTag ff_codec_bmp_tags[] = {
{ AV_CODEC_ID_UTVIDEO, MKTAG('U', 'Q', 'Y', '2') },
{ AV_CODEC_ID_UTVIDEO, MKTAG('U', 'Q', 'R', 'A') },
{ AV_CODEC_ID_UTVIDEO, MKTAG('U', 'Q', 'R', 'G') },
{ AV_CODEC_ID_UTVIDEO, MKTAG('U', 'M', 'Y', '2') },
{ AV_CODEC_ID_UTVIDEO, MKTAG('U', 'M', 'H', '2') },
{ AV_CODEC_ID_UTVIDEO, MKTAG('U', 'M', 'Y', '4') },
{ AV_CODEC_ID_UTVIDEO, MKTAG('U', 'M', 'H', '4') },
{ AV_CODEC_ID_UTVIDEO, MKTAG('U', 'M', 'R', 'A') },
{ AV_CODEC_ID_UTVIDEO, MKTAG('U', 'M', 'R', 'G') },
{ AV_CODEC_ID_VBLE, MKTAG('V', 'B', 'L', 'E') },
{ AV_CODEC_ID_ESCAPE130, MKTAG('E', '1', '3', '0') },
{ AV_CODEC_ID_DXTORY, MKTAG('x', 't', 'o', 'r') },
......
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