#include <inttypes.h>
#include <stdlib.h>
+#define UNCHECKED_BITSTREAM_READER 1
+
#include "libavutil/intreadwrite.h"
#include "avcodec.h"
#include "bswapdsp.h"
syms[i] = he[i].sym;
code += 0x80000000u >> (he[i].len - 1);
}
-
- return ff_init_vlc_sparse(vlc, FFMIN(he[last].len, 11), last + 1,
+#define VLC_BITS 11
+ return ff_init_vlc_sparse(vlc, VLC_BITS, last + 1,
bits, sizeof(*bits), sizeof(*bits),
codes, sizeof(*codes), sizeof(*codes),
syms, sizeof(*syms), sizeof(*syms), 0);
code += 0x80000000u >> (he[i].len - 1);
}
- return ff_init_vlc_sparse(vlc, FFMIN(he[last].len, 11), last + 1,
+ return ff_init_vlc_sparse(vlc, VLC_BITS, last + 1,
bits, sizeof(*bits), sizeof(*bits),
codes, sizeof(*codes), sizeof(*codes),
syms, sizeof(*syms), sizeof(*syms), 0);
goto fail;
}
- memcpy(c->slice_bits, src + slice_data_start + c->slices * 4,
- slice_size);
memset(c->slice_bits + slice_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
c->bdsp.bswap_buf((uint32_t *) c->slice_bits,
- (uint32_t *) c->slice_bits,
+ (uint32_t *)(src + slice_data_start + c->slices * 4),
(slice_data_end - slice_data_start + 3) >> 2);
init_get_bits(&gb, c->slice_bits, slice_size * 8);
prev = 0x200;
for (j = sstart; j < send; j++) {
- for (i = 0; i < width * step; i += step) {
- if (get_bits_left(&gb) <= 0) {
- av_log(c->avctx, AV_LOG_ERROR,
- "Slice decoding ran out of bits\n");
- goto fail;
- }
- pix = get_vlc2(&gb, vlc.table, vlc.bits, 3);
+ int ws = width * step;
+ for (i = 0; i < ws; i += step) {
+ pix = get_vlc2(&gb, vlc.table, VLC_BITS, 3);
if (pix < 0) {
av_log(c->avctx, AV_LOG_ERROR, "Decoding error\n");
goto fail;
dest[i] = pix;
}
dest += stride;
+ if (get_bits_left(&gb) < 0) {
+ av_log(c->avctx, AV_LOG_ERROR,
+ "Slice decoding ran out of bits\n");
+ goto fail;
+ }
}
if (get_bits_left(&gb) > 32)
av_log(c->avctx, AV_LOG_WARNING,
goto fail;
}
- memcpy(c->slice_bits, src + slice_data_start + c->slices * 4,
- slice_size);
memset(c->slice_bits + slice_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
c->bdsp.bswap_buf((uint32_t *) c->slice_bits,
- (uint32_t *) c->slice_bits,
+ (uint32_t *)(src + slice_data_start + c->slices * 4),
(slice_data_end - slice_data_start + 3) >> 2);
init_get_bits(&gb, c->slice_bits, slice_size * 8);
prev = 0x80;
for (j = sstart; j < send; j++) {
- for (i = 0; i < width * step; i += step) {
- if (get_bits_left(&gb) <= 0) {
- av_log(c->avctx, AV_LOG_ERROR,
- "Slice decoding ran out of bits\n");
- goto fail;
- }
- pix = get_vlc2(&gb, vlc.table, vlc.bits, 3);
+ int ws = width * step;
+ for (i = 0; i < ws; i += step) {
+ pix = get_vlc2(&gb, vlc.table, VLC_BITS, 3);
if (pix < 0) {
av_log(c->avctx, AV_LOG_ERROR, "Decoding error\n");
goto fail;
}
dest[i] = pix;
}
+ if (get_bits_left(&gb) < 0) {
+ av_log(c->avctx, AV_LOG_ERROR,
+ "Slice decoding ran out of bits\n");
+ goto fail;
+ }
dest += stride;
}
if (get_bits_left(&gb) > 32)
return AVERROR_INVALIDDATA;
}
-static void restore_rgb_planes(uint8_t *src, int step, ptrdiff_t stride,
- int width, int height)
-{
- int i, j;
- uint8_t r, g, b;
-
- for (j = 0; j < height; j++) {
- for (i = 0; i < width * step; i += step) {
- r = src[i];
- g = src[i + 1];
- b = src[i + 2];
- src[i] = r + g - 0x80;
- src[i + 2] = b + g - 0x80;
- }
- src += stride;
- }
-}
-
-static void restore_rgb_planes10(AVFrame *frame, int width, int height)
-{
- uint16_t *src_r = (uint16_t *)frame->data[2];
- uint16_t *src_g = (uint16_t *)frame->data[0];
- uint16_t *src_b = (uint16_t *)frame->data[1];
- int r, g, b;
- int i, j;
-
- for (j = 0; j < height; j++) {
- for (i = 0; i < width; i++) {
- r = src_r[i];
- g = src_g[i];
- b = src_b[i];
- src_r[i] = (r + g - 0x200) & 0x3FF;
- src_b[i] = (b + g - 0x200) & 0x3FF;
- }
- src_r += frame->linesize[2] / 2;
- src_g += frame->linesize[0] / 2;
- src_b += frame->linesize[1] / 2;
- }
-}
-
#undef A
#undef B
#undef C
}
}
-static void restore_median_packed(uint8_t *src, int step, ptrdiff_t stride,
- int width, int height, int slices, int rmode)
-{
- int i, j, slice;
- int A, B, C;
- uint8_t *bsrc;
- int slice_start, slice_height;
- const int cmask = ~rmode;
-
- for (slice = 0; slice < slices; slice++) {
- slice_start = ((slice * height) / slices) & cmask;
- slice_height = ((((slice + 1) * height) / slices) & cmask) -
- slice_start;
-
- if (!slice_height)
- continue;
- bsrc = src + slice_start * stride;
-
- // first line - left neighbour prediction
- bsrc[0] += 0x80;
- A = bsrc[0];
- for (i = step; i < width * step; i += step) {
- bsrc[i] += A;
- A = bsrc[i];
- }
- bsrc += stride;
- if (slice_height <= 1)
- continue;
- // second line - first element has top prediction, the rest uses median
- C = bsrc[-stride];
- bsrc[0] += C;
- A = bsrc[0];
- for (i = step; i < width * step; i += step) {
- B = bsrc[i - stride];
- bsrc[i] += mid_pred(A, B, (uint8_t)(A + B - C));
- C = B;
- A = bsrc[i];
- }
- bsrc += stride;
- // the rest of lines use continuous median prediction
- for (j = 2; j < slice_height; j++) {
- for (i = 0; i < width * step; i += step) {
- B = bsrc[i - stride];
- bsrc[i] += mid_pred(A, B, (uint8_t)(A + B - C));
- C = B;
- A = bsrc[i];
- }
- bsrc += stride;
- }
- }
-}
-
-/* UtVideo interlaced mode treats every two lines as a single one,
- * so restoring function should take care of possible padding between
- * two parts of the same "line".
- */
-static void restore_median_packed_il(uint8_t *src, int step, ptrdiff_t stride,
- int width, int height, int slices, int rmode)
-{
- int i, j, slice;
- int A, B, C;
- uint8_t *bsrc;
- int slice_start, slice_height;
- const int cmask = ~(rmode ? 3 : 1);
- const ptrdiff_t stride2 = stride << 1;
-
- for (slice = 0; slice < slices; slice++) {
- slice_start = ((slice * height) / slices) & cmask;
- slice_height = ((((slice + 1) * height) / slices) & cmask) -
- slice_start;
- slice_height >>= 1;
- if (!slice_height)
- continue;
-
- bsrc = src + slice_start * stride;
-
- // first line - left neighbour prediction
- bsrc[0] += 0x80;
- A = bsrc[0];
- for (i = step; i < width * step; i += step) {
- bsrc[i] += A;
- A = bsrc[i];
- }
- for (i = 0; i < width * step; i += step) {
- bsrc[stride + i] += A;
- A = bsrc[stride + i];
- }
- bsrc += stride2;
- if (slice_height <= 1)
- continue;
- // second line - first element has top prediction, the rest uses median
- C = bsrc[-stride2];
- bsrc[0] += C;
- A = bsrc[0];
- for (i = step; i < width * step; i += step) {
- B = bsrc[i - stride2];
- bsrc[i] += mid_pred(A, B, (uint8_t)(A + B - C));
- C = B;
- A = bsrc[i];
- }
- for (i = 0; i < width * step; i += step) {
- B = bsrc[i - stride];
- bsrc[stride + i] += mid_pred(A, B, (uint8_t)(A + B - C));
- C = B;
- A = bsrc[stride + i];
- }
- bsrc += stride2;
- // the rest of lines use continuous median prediction
- for (j = 2; j < slice_height; j++) {
- for (i = 0; i < width * step; i += step) {
- B = bsrc[i - stride2];
- bsrc[i] += mid_pred(A, B, (uint8_t)(A + B - C));
- C = B;
- A = bsrc[i];
- }
- for (i = 0; i < width * step; i += step) {
- B = bsrc[i - stride];
- bsrc[i + stride] += mid_pred(A, B, (uint8_t)(A + B - C));
- C = B;
- A = bsrc[i + stride];
- }
- bsrc += stride2;
- }
- }
-}
-
static void restore_gradient_planar(UtvideoContext *c, uint8_t *src, ptrdiff_t stride,
int width, int height, int slices, int rmode)
{
}
}
-static void restore_gradient_packed(uint8_t *src, int step, ptrdiff_t stride,
- int width, int height, int slices, int rmode)
-{
- int i, j, slice;
- int A, B, C;
- uint8_t *bsrc;
- int slice_start, slice_height;
- const int cmask = ~rmode;
-
- for (slice = 0; slice < slices; slice++) {
- slice_start = ((slice * height) / slices) & cmask;
- slice_height = ((((slice + 1) * height) / slices) & cmask) -
- slice_start;
-
- if (!slice_height)
- continue;
- bsrc = src + slice_start * stride;
-
- // first line - left neighbour prediction
- bsrc[0] += 0x80;
- A = bsrc[0];
- for (i = step; i < width * step; i += step) {
- bsrc[i] += A;
- A = bsrc[i];
- }
- bsrc += stride;
- if (slice_height <= 1)
- continue;
- for (j = 1; j < slice_height; j++) {
- // second line - first element has top prediction, the rest uses gradient
- C = bsrc[-stride];
- bsrc[0] += C;
- for (i = step; i < width * step; i += step) {
- A = bsrc[i - stride];
- B = bsrc[i - (stride + step)];
- C = bsrc[i - step];
- bsrc[i] = (A - B + C + bsrc[i]) & 0xFF;
- }
- bsrc += stride;
- }
- }
-}
-
-static void restore_gradient_packed_il(uint8_t *src, int step, ptrdiff_t stride,
- int width, int height, int slices, int rmode)
-{
- int i, j, slice;
- int A, B, C;
- uint8_t *bsrc;
- int slice_start, slice_height;
- const int cmask = ~(rmode ? 3 : 1);
- const ptrdiff_t stride2 = stride << 1;
-
- for (slice = 0; slice < slices; slice++) {
- slice_start = ((slice * height) / slices) & cmask;
- slice_height = ((((slice + 1) * height) / slices) & cmask) -
- slice_start;
- slice_height >>= 1;
- if (!slice_height)
- continue;
-
- bsrc = src + slice_start * stride;
-
- // first line - left neighbour prediction
- bsrc[0] += 0x80;
- A = bsrc[0];
- for (i = step; i < width * step; i += step) {
- bsrc[i] += A;
- A = bsrc[i];
- }
- for (i = 0; i < width * step; i += step) {
- bsrc[stride + i] += A;
- A = bsrc[stride + i];
- }
- bsrc += stride2;
- if (slice_height <= 1)
- continue;
- for (j = 1; j < slice_height; j++) {
- // second line - first element has top prediction, the rest uses gradient
- C = bsrc[-stride2];
- bsrc[0] += C;
- for (i = step; i < width * step; i += step) {
- A = bsrc[i - stride2];
- B = bsrc[i - (stride2 + step)];
- C = bsrc[i - step];
- bsrc[i] = (A - B + C + bsrc[i]) & 0xFF;
- }
- A = bsrc[-stride];
- B = bsrc[-(step + stride + stride - width * step)];
- C = bsrc[width * step - step];
- bsrc[stride] = (A - B + C + bsrc[stride]) & 0xFF;
- for (i = step; i < width * step; i += step) {
- A = bsrc[i - stride];
- B = bsrc[i - (step + stride)];
- C = bsrc[i - step + stride];
- bsrc[i + stride] = (A - B + C + bsrc[i + stride]) & 0xFF;
- }
- bsrc += stride2;
- }
- }
-}
-
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
AVPacket *avpkt)
{
c->frame_pred = (c->frame_info >> 8) & 3;
+ max_slice_size += 4*avctx->width;
+
av_fast_malloc(&c->slice_bits, &c->slice_bits_size,
max_slice_size + AV_INPUT_BUFFER_PADDING_SIZE);
}
switch (c->avctx->pix_fmt) {
- case AV_PIX_FMT_RGB24:
- case AV_PIX_FMT_RGBA:
+ case AV_PIX_FMT_GBRP:
+ case AV_PIX_FMT_GBRAP:
for (i = 0; i < c->planes; i++) {
- ret = decode_plane(c, i, frame.f->data[0] + ff_ut_rgb_order[i],
- c->planes, frame.f->linesize[0], avctx->width,
+ ret = decode_plane(c, i, frame.f->data[i], 1,
+ frame.f->linesize[i], avctx->width,
avctx->height, plane_start[i],
c->frame_pred == PRED_LEFT);
if (ret)
return ret;
if (c->frame_pred == PRED_MEDIAN) {
if (!c->interlaced) {
- restore_median_packed(frame.f->data[0] + ff_ut_rgb_order[i],
- c->planes, frame.f->linesize[0], avctx->width,
+ restore_median_planar(c, frame.f->data[i],
+ frame.f->linesize[i], avctx->width,
avctx->height, c->slices, 0);
} else {
- restore_median_packed_il(frame.f->data[0] + ff_ut_rgb_order[i],
- c->planes, frame.f->linesize[0],
+ restore_median_planar_il(c, frame.f->data[i],
+ frame.f->linesize[i],
avctx->width, avctx->height, c->slices,
0);
}
} else if (c->frame_pred == PRED_GRADIENT) {
if (!c->interlaced) {
- restore_gradient_packed(frame.f->data[0] + ff_ut_rgb_order[i],
- c->planes, frame.f->linesize[0], avctx->width,
+ restore_gradient_planar(c, frame.f->data[i],
+ frame.f->linesize[i], avctx->width,
avctx->height, c->slices, 0);
} else {
- restore_gradient_packed_il(frame.f->data[0] + ff_ut_rgb_order[i],
- c->planes, frame.f->linesize[0],
+ restore_gradient_planar_il(c, frame.f->data[i],
+ frame.f->linesize[i],
avctx->width, avctx->height, c->slices,
0);
}
}
}
- restore_rgb_planes(frame.f->data[0], c->planes, frame.f->linesize[0],
- avctx->width, avctx->height);
+ c->utdsp.restore_rgb_planes(frame.f->data[2], frame.f->data[0], frame.f->data[1],
+ frame.f->linesize[2], frame.f->linesize[0], frame.f->linesize[1],
+ avctx->width, avctx->height);
break;
case AV_PIX_FMT_GBRAP10:
case AV_PIX_FMT_GBRP10:
if (ret)
return ret;
}
- restore_rgb_planes10(frame.f, avctx->width, avctx->height);
+ c->utdsp.restore_rgb_planes10((uint16_t *)frame.f->data[2], (uint16_t *)frame.f->data[0], (uint16_t *)frame.f->data[1],
+ frame.f->linesize[2] / 2, frame.f->linesize[0] / 2, frame.f->linesize[1] / 2,
+ avctx->width, avctx->height);
break;
case AV_PIX_FMT_YUV420P:
for (i = 0; i < 3; i++) {
c->avctx = avctx;
+ ff_utvideodsp_init(&c->utdsp);
ff_bswapdsp_init(&c->bdsp);
ff_llviddsp_init(&c->llviddsp);
switch (avctx->codec_tag) {
case MKTAG('U', 'L', 'R', 'G'):
c->planes = 3;
- avctx->pix_fmt = AV_PIX_FMT_RGB24;
+ avctx->pix_fmt = AV_PIX_FMT_GBRP;
break;
case MKTAG('U', 'L', 'R', 'A'):
c->planes = 4;
- avctx->pix_fmt = AV_PIX_FMT_RGBA;
+ avctx->pix_fmt = AV_PIX_FMT_GBRAP;
break;
case MKTAG('U', 'L', 'Y', '0'):
c->planes = 3;
projects / ffmpeg / blobdiff