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-rw-r--r--libavcodec/huffyuvdec.c705
1 files changed, 571 insertions, 134 deletions
diff --git a/libavcodec/huffyuvdec.c b/libavcodec/huffyuvdec.c
index e0d8a06093..74872d2caa 100644
--- a/libavcodec/huffyuvdec.c
+++ b/libavcodec/huffyuvdec.c
@@ -1,26 +1,28 @@
/*
* huffyuv decoder
*
- * Copyright (c) 2002-2003 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (c) 2002-2014 Michael Niedermayer <michaelni@gmx.at>
*
* see http://www.pcisys.net/~melanson/codecs/huffyuv.txt for a description of
* the algorithm used
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * yuva, gray, 4:4:4, 4:1:1, 4:1:0 and >8 bit per sample support sponsored by NOA
*/
/**
@@ -28,24 +30,29 @@
* huffyuv decoder
*/
+#define UNCHECKED_BITSTREAM_READER 1
+
#include "avcodec.h"
#include "get_bits.h"
#include "huffyuv.h"
#include "huffyuvdsp.h"
#include "thread.h"
+#include "libavutil/pixdesc.h"
#define classic_shift_luma_table_size 42
static const unsigned char classic_shift_luma[classic_shift_luma_table_size + FF_INPUT_BUFFER_PADDING_SIZE] = {
34,36,35,69,135,232,9,16,10,24,11,23,12,16,13,10,14,8,15,8,
16,8,17,20,16,10,207,206,205,236,11,8,10,21,9,23,8,8,199,70,
- 69,68, 0
+ 69,68, 0,
+ 0,0,0,0,0,0,0,0,
};
#define classic_shift_chroma_table_size 59
static const unsigned char classic_shift_chroma[classic_shift_chroma_table_size + FF_INPUT_BUFFER_PADDING_SIZE] = {
66,36,37,38,39,40,41,75,76,77,110,239,144,81,82,83,84,85,118,183,
56,57,88,89,56,89,154,57,58,57,26,141,57,56,58,57,58,57,184,119,
- 214,245,116,83,82,49,80,79,78,77,44,75,41,40,39,38,37,36,34, 0
+ 214,245,116,83,82,49,80,79,78,77,44,75,41,40,39,38,37,36,34, 0,
+ 0,0,0,0,0,0,0,0,
};
static const unsigned char classic_add_luma[256] = {
@@ -86,16 +93,16 @@ static const unsigned char classic_add_chroma[256] = {
6, 12, 8, 10, 7, 9, 6, 4, 6, 2, 2, 3, 3, 3, 3, 2,
};
-static int read_len_table(uint8_t *dst, GetBitContext *gb)
+static int read_len_table(uint8_t *dst, GetBitContext *gb, int n)
{
int i, val, repeat;
- for (i = 0; i < 256;) {
+ for (i = 0; i < n;) {
repeat = get_bits(gb, 3);
val = get_bits(gb, 5);
if (repeat == 0)
repeat = get_bits(gb, 8);
- if (i + repeat > 256 || get_bits_left(gb) < 0) {
+ if (i + repeat > n || get_bits_left(gb) < 0) {
av_log(NULL, AV_LOG_ERROR, "Error reading huffman table\n");
return -1;
}
@@ -105,33 +112,41 @@ static int read_len_table(uint8_t *dst, GetBitContext *gb)
return 0;
}
-static void generate_joint_tables(HYuvContext *s)
+static int generate_joint_tables(HYuvContext *s)
{
uint16_t symbols[1 << VLC_BITS];
uint16_t bits[1 << VLC_BITS];
uint8_t len[1 << VLC_BITS];
- if (s->bitstream_bpp < 24) {
+ int ret;
+
+ if (s->bitstream_bpp < 24 || s->version > 2) {
int p, i, y, u;
- for (p = 0; p < 3; p++) {
- for (i = y = 0; y < 256; y++) {
- int len0 = s->len[0][y];
+ for (p = 0; p < 4; p++) {
+ int p0 = s->version > 2 ? p : 0;
+ for (i = y = 0; y < s->vlc_n; y++) {
+ int len0 = s->len[p0][y];
int limit = VLC_BITS - len0;
- if(limit <= 0)
+ if(limit <= 0 || !len0)
continue;
- for (u = 0; u < 256; u++) {
+ if((sign_extend(y, 8) & (s->vlc_n-1)) != y)
+ continue;
+ for (u = 0; u < s->vlc_n; u++) {
int len1 = s->len[p][u];
- if (len1 > limit)
+ if (len1 > limit || !len1)
+ continue;
+ if((sign_extend(u, 8) & (s->vlc_n-1)) != u)
continue;
+ av_assert0(i < (1 << VLC_BITS));
len[i] = len0 + len1;
- bits[i] = (s->bits[0][y] << len1) + s->bits[p][u];
- symbols[i] = (y << 8) + u;
- if(symbols[i] != 0xffff) // reserved to mean "invalid"
+ bits[i] = (s->bits[p0][y] << len1) + s->bits[p][u];
+ symbols[i] = (y << 8) + (u & 0xFF);
i++;
}
}
- ff_free_vlc(&s->vlc[3 + p]);
- ff_init_vlc_sparse(&s->vlc[3 + p], VLC_BITS, i, len, 1, 1,
- bits, 2, 2, symbols, 2, 2, 0);
+ ff_free_vlc(&s->vlc[4 + p]);
+ if ((ret = ff_init_vlc_sparse(&s->vlc[4 + p], VLC_BITS, i, len, 1, 1,
+ bits, 2, 2, symbols, 2, 2, 0)) < 0)
+ return ret;
}
} else {
uint8_t (*map)[4] = (uint8_t(*)[4])s->pix_bgr_map;
@@ -144,18 +159,19 @@ static void generate_joint_tables(HYuvContext *s)
for (i = 0, g = -16; g < 16; g++) {
int len0 = s->len[p0][g & 255];
int limit0 = VLC_BITS - len0;
- if (limit0 < 2)
+ if (limit0 < 2 || !len0)
continue;
for (b = -16; b < 16; b++) {
int len1 = s->len[p1][b & 255];
int limit1 = limit0 - len1;
- if (limit1 < 1)
+ if (limit1 < 1 || !len1)
continue;
code = (s->bits[p0][g & 255] << len1) + s->bits[p1][b & 255];
for (r = -16; r < 16; r++) {
int len2 = s->len[2][r & 255];
- if (len2 > limit1)
+ if (len2 > limit1 || !len2)
continue;
+ av_assert0(i < (1 << VLC_BITS));
len[i] = len0 + len1 + len2;
bits[i] = (code << len2) + s->bits[2][r & 255];
if (s->decorrelate) {
@@ -171,30 +187,39 @@ static void generate_joint_tables(HYuvContext *s)
}
}
}
- ff_free_vlc(&s->vlc[3]);
- init_vlc(&s->vlc[3], VLC_BITS, i, len, 1, 1, bits, 2, 2, 0);
+ ff_free_vlc(&s->vlc[4]);
+ if ((ret = init_vlc(&s->vlc[4], VLC_BITS, i, len, 1, 1, bits, 2, 2, 0)) < 0)
+ return ret;
}
+ return 0;
}
static int read_huffman_tables(HYuvContext *s, const uint8_t *src, int length)
{
GetBitContext gb;
int i;
+ int ret;
+ int count = 3;
init_get_bits(&gb, src, length * 8);
- for (i = 0; i < 3; i++) {
- if (read_len_table(s->len[i], &gb) < 0)
+ if (s->version > 2)
+ count = 1 + s->alpha + 2*s->chroma;
+
+ for (i = 0; i < count; i++) {
+ if (read_len_table(s->len[i], &gb, s->vlc_n) < 0)
return -1;
- if (ff_huffyuv_generate_bits_table(s->bits[i], s->len[i]) < 0) {
+ if (ff_huffyuv_generate_bits_table(s->bits[i], s->len[i], s->vlc_n) < 0) {
return -1;
}
ff_free_vlc(&s->vlc[i]);
- init_vlc(&s->vlc[i], VLC_BITS, 256, s->len[i], 1, 1,
- s->bits[i], 4, 4, 0);
+ if ((ret = init_vlc(&s->vlc[i], VLC_BITS, s->vlc_n, s->len[i], 1, 1,
+ s->bits[i], 4, 4, 0)) < 0)
+ return ret;
}
- generate_joint_tables(s);
+ if ((ret = generate_joint_tables(s)) < 0)
+ return ret;
return (get_bits_count(&gb) + 7) / 8;
}
@@ -203,15 +228,16 @@ static int read_old_huffman_tables(HYuvContext *s)
{
GetBitContext gb;
int i;
+ int ret;
init_get_bits(&gb, classic_shift_luma,
classic_shift_luma_table_size * 8);
- if (read_len_table(s->len[0], &gb) < 0)
+ if (read_len_table(s->len[0], &gb, 256) < 0)
return -1;
init_get_bits(&gb, classic_shift_chroma,
classic_shift_chroma_table_size * 8);
- if (read_len_table(s->len[1], &gb) < 0)
+ if (read_len_table(s->len[1], &gb, 256) < 0)
return -1;
for(i=0; i<256; i++) s->bits[0][i] = classic_add_luma [i];
@@ -224,13 +250,15 @@ static int read_old_huffman_tables(HYuvContext *s)
memcpy(s->bits[2], s->bits[1], 256 * sizeof(uint32_t));
memcpy(s->len[2] , s->len [1], 256 * sizeof(uint8_t));
- for (i = 0; i < 3; i++) {
+ for (i = 0; i < 4; i++) {
ff_free_vlc(&s->vlc[i]);
- init_vlc(&s->vlc[i], VLC_BITS, 256, s->len[i], 1, 1,
- s->bits[i], 4, 4, 0);
+ if ((ret = init_vlc(&s->vlc[i], VLC_BITS, 256, s->len[i], 1, 1,
+ s->bits[i], 4, 4, 0)) < 0)
+ return ret;
}
- generate_joint_tables(s);
+ if ((ret = generate_joint_tables(s)) < 0)
+ return ret;
return 0;
}
@@ -239,11 +267,10 @@ static av_cold int decode_init(AVCodecContext *avctx)
{
HYuvContext *s = avctx->priv_data;
- ff_huffyuv_common_init(avctx);
ff_huffyuvdsp_init(&s->hdsp);
- memset(s->vlc, 0, 3 * sizeof(VLC));
+ memset(s->vlc, 0, 4 * sizeof(VLC));
- s->interlaced = s->height > 288;
+ s->interlaced = avctx->height > 288;
s->bgr32 = 1;
@@ -251,12 +278,18 @@ static av_cold int decode_init(AVCodecContext *avctx)
if ((avctx->bits_per_coded_sample & 7) &&
avctx->bits_per_coded_sample != 12)
s->version = 1; // do such files exist at all?
- else
+ else if (avctx->extradata_size > 3 && avctx->extradata[3] == 0)
s->version = 2;
+ else
+ s->version = 3;
} else
s->version = 0;
- if (s->version == 2) {
+ s->bps = 8;
+ s->n = 1<<s->bps;
+ s->vlc_n = FFMIN(s->n, MAX_VLC_N);
+ s->chroma = 1;
+ if (s->version >= 2) {
int method, interlace;
if (avctx->extradata_size < 4)
@@ -265,16 +298,27 @@ static av_cold int decode_init(AVCodecContext *avctx)
method = ((uint8_t*)avctx->extradata)[0];
s->decorrelate = method & 64 ? 1 : 0;
s->predictor = method & 63;
- s->bitstream_bpp = ((uint8_t*)avctx->extradata)[1];
- if (s->bitstream_bpp == 0)
- s->bitstream_bpp = avctx->bits_per_coded_sample & ~7;
+ if (s->version == 2) {
+ s->bitstream_bpp = ((uint8_t*)avctx->extradata)[1];
+ if (s->bitstream_bpp == 0)
+ s->bitstream_bpp = avctx->bits_per_coded_sample & ~7;
+ } else {
+ s->bps = (avctx->extradata[1] >> 4) + 1;
+ s->n = 1<<s->bps;
+ s->vlc_n = FFMIN(s->n, MAX_VLC_N);
+ s->chroma_h_shift = avctx->extradata[1] & 3;
+ s->chroma_v_shift = (avctx->extradata[1] >> 2) & 3;
+ s->yuv = !!(((uint8_t*)avctx->extradata)[2] & 1);
+ s->chroma= !!(((uint8_t*)avctx->extradata)[2] & 3);
+ s->alpha = !!(((uint8_t*)avctx->extradata)[2] & 4);
+ }
interlace = (((uint8_t*)avctx->extradata)[2] & 0x30) >> 4;
s->interlaced = (interlace == 1) ? 1 : (interlace == 2) ? 0 : s->interlaced;
s->context = ((uint8_t*)avctx->extradata)[2] & 0x40 ? 1 : 0;
if ( read_huffman_tables(s, ((uint8_t*)avctx->extradata) + 4,
avctx->extradata_size - 4) < 0)
- return -1;
+ return AVERROR_INVALIDDATA;
}else{
switch (avctx->bits_per_coded_sample & 7) {
case 1:
@@ -302,33 +346,191 @@ static av_cold int decode_init(AVCodecContext *avctx)
s->context = 0;
if (read_old_huffman_tables(s) < 0)
- return -1;
+ return AVERROR_INVALIDDATA;
}
- switch (s->bitstream_bpp) {
- case 12:
- avctx->pix_fmt = AV_PIX_FMT_YUV420P;
- break;
- case 16:
- if (s->yuy2) {
- avctx->pix_fmt = AV_PIX_FMT_YUYV422;
- } else {
- avctx->pix_fmt = AV_PIX_FMT_YUV422P;
- }
- break;
- case 24:
- case 32:
- if (s->bgr32) {
+ if (s->version <= 2) {
+ switch (s->bitstream_bpp) {
+ case 12:
+ avctx->pix_fmt = AV_PIX_FMT_YUV420P;
+ s->yuv = 1;
+ break;
+ case 16:
+ if (s->yuy2) {
+ avctx->pix_fmt = AV_PIX_FMT_YUYV422;
+ } else {
+ avctx->pix_fmt = AV_PIX_FMT_YUV422P;
+ }
+ s->yuv = 1;
+ break;
+ case 24:
+ if (s->bgr32) {
+ avctx->pix_fmt = AV_PIX_FMT_0RGB32;
+ } else {
+ avctx->pix_fmt = AV_PIX_FMT_BGR24;
+ }
+ break;
+ case 32:
+ av_assert0(s->bgr32);
avctx->pix_fmt = AV_PIX_FMT_RGB32;
- } else {
- avctx->pix_fmt = AV_PIX_FMT_BGR24;
+ s->alpha = 1;
+ break;
+ default:
+ return AVERROR_INVALIDDATA;
+ }
+ av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt,
+ &s->chroma_h_shift,
+ &s->chroma_v_shift);
+ } else {
+ switch ( (s->chroma<<10) | (s->yuv<<9) | (s->alpha<<8) | ((s->bps-1)<<4) | s->chroma_h_shift | (s->chroma_v_shift<<2)) {
+ case 0x070:
+ avctx->pix_fmt = AV_PIX_FMT_GRAY8;
+ break;
+ case 0x0F0:
+ avctx->pix_fmt = AV_PIX_FMT_GRAY16;
+ break;
+ case 0x170:
+ avctx->pix_fmt = AV_PIX_FMT_GRAY8A;
+ break;
+ case 0x470:
+ avctx->pix_fmt = AV_PIX_FMT_GBRP;
+ break;
+ case 0x480:
+ avctx->pix_fmt = AV_PIX_FMT_GBRP9;
+ break;
+ case 0x490:
+ avctx->pix_fmt = AV_PIX_FMT_GBRP10;
+ break;
+ case 0x4B0:
+ avctx->pix_fmt = AV_PIX_FMT_GBRP12;
+ break;
+ case 0x4D0:
+ avctx->pix_fmt = AV_PIX_FMT_GBRP14;
+ break;
+ case 0x4F0:
+ avctx->pix_fmt = AV_PIX_FMT_GBRP16;
+ break;
+ case 0x570:
+ avctx->pix_fmt = AV_PIX_FMT_GBRAP;
+ break;
+ case 0x670:
+ avctx->pix_fmt = AV_PIX_FMT_YUV444P;
+ break;
+ case 0x680:
+ avctx->pix_fmt = AV_PIX_FMT_YUV444P9;
+ break;
+ case 0x690:
+ avctx->pix_fmt = AV_PIX_FMT_YUV444P10;
+ break;
+ case 0x6B0:
+ avctx->pix_fmt = AV_PIX_FMT_YUV444P12;
+ break;
+ case 0x6D0:
+ avctx->pix_fmt = AV_PIX_FMT_YUV444P14;
+ break;
+ case 0x6F0:
+ avctx->pix_fmt = AV_PIX_FMT_YUV444P16;
+ break;
+ case 0x671:
+ avctx->pix_fmt = AV_PIX_FMT_YUV422P;
+ break;
+ case 0x681:
+ avctx->pix_fmt = AV_PIX_FMT_YUV422P9;
+ break;
+ case 0x691:
+ avctx->pix_fmt = AV_PIX_FMT_YUV422P10;
+ break;
+ case 0x6B1:
+ avctx->pix_fmt = AV_PIX_FMT_YUV422P12;
+ break;
+ case 0x6D1:
+ avctx->pix_fmt = AV_PIX_FMT_YUV422P14;
+ break;
+ case 0x6F1:
+ avctx->pix_fmt = AV_PIX_FMT_YUV422P16;
+ break;
+ case 0x672:
+ avctx->pix_fmt = AV_PIX_FMT_YUV411P;
+ break;
+ case 0x674:
+ avctx->pix_fmt = AV_PIX_FMT_YUV440P;
+ break;
+ case 0x675:
+ avctx->pix_fmt = AV_PIX_FMT_YUV420P;
+ break;
+ case 0x685:
+ avctx->pix_fmt = AV_PIX_FMT_YUV420P9;
+ break;
+ case 0x695:
+ avctx->pix_fmt = AV_PIX_FMT_YUV420P10;
+ break;
+ case 0x6B5:
+ avctx->pix_fmt = AV_PIX_FMT_YUV420P12;
+ break;
+ case 0x6D5:
+ avctx->pix_fmt = AV_PIX_FMT_YUV420P14;
+ break;
+ case 0x6F5:
+ avctx->pix_fmt = AV_PIX_FMT_YUV420P16;
+ break;
+ case 0x67A:
+ avctx->pix_fmt = AV_PIX_FMT_YUV410P;
+ break;
+ case 0x770:
+ avctx->pix_fmt = AV_PIX_FMT_YUVA444P;
+ break;
+ case 0x780:
+ avctx->pix_fmt = AV_PIX_FMT_YUVA444P9;
+ break;
+ case 0x790:
+ avctx->pix_fmt = AV_PIX_FMT_YUVA444P10;
+ break;
+ case 0x7F0:
+ avctx->pix_fmt = AV_PIX_FMT_YUVA444P16;
+ break;
+ case 0x771:
+ avctx->pix_fmt = AV_PIX_FMT_YUVA422P;
+ break;
+ case 0x781:
+ avctx->pix_fmt = AV_PIX_FMT_YUVA422P9;
+ break;
+ case 0x791:
+ avctx->pix_fmt = AV_PIX_FMT_YUVA422P10;
+ break;
+ case 0x7F1:
+ avctx->pix_fmt = AV_PIX_FMT_YUVA422P16;
+ break;
+ case 0x775:
+ avctx->pix_fmt = AV_PIX_FMT_YUVA420P;
+ break;
+ case 0x785:
+ avctx->pix_fmt = AV_PIX_FMT_YUVA420P9;
+ break;
+ case 0x795:
+ avctx->pix_fmt = AV_PIX_FMT_YUVA420P10;
+ break;
+ case 0x7F5:
+ avctx->pix_fmt = AV_PIX_FMT_YUVA420P16;
+ break;
+ default:
+ return AVERROR_INVALIDDATA;
}
- break;
- default:
- return AVERROR_INVALIDDATA;
}
- ff_huffyuv_alloc_temp(s);
+ ff_huffyuv_common_init(avctx);
+
+ if ((avctx->pix_fmt == AV_PIX_FMT_YUV422P || avctx->pix_fmt == AV_PIX_FMT_YUV420P) && avctx->width & 1) {
+ av_log(avctx, AV_LOG_ERROR, "width must be even for this colorspace\n");
+ return AVERROR_INVALIDDATA;
+ }
+ if (s->predictor == MEDIAN && avctx->pix_fmt == AV_PIX_FMT_YUV422P && avctx->width%4) {
+ av_log(avctx, AV_LOG_ERROR, "width must be a multiple of 4 this colorspace and predictor\n");
+ return AVERROR_INVALIDDATA;
+ }
+ if (ff_huffyuv_alloc_temp(s)) {
+ ff_huffyuv_common_end(s);
+ return AVERROR(ENOMEM);
+ }
return 0;
}
@@ -338,62 +540,173 @@ static av_cold int decode_init_thread_copy(AVCodecContext *avctx)
HYuvContext *s = avctx->priv_data;
int i;
- ff_huffyuv_alloc_temp(s);
+ if (ff_huffyuv_alloc_temp(s)) {
+ ff_huffyuv_common_end(s);
+ return AVERROR(ENOMEM);
+ }
- for (i = 0; i < 6; i++)
+ for (i = 0; i < 8; i++)
s->vlc[i].table = NULL;
- if (s->version == 2) {
+ if (s->version >= 2) {
if (read_huffman_tables(s, ((uint8_t*)avctx->extradata) + 4,
avctx->extradata_size) < 0)
- return -1;
+ return AVERROR_INVALIDDATA;
} else {
if (read_old_huffman_tables(s) < 0)
- return -1;
+ return AVERROR_INVALIDDATA;
}
return 0;
}
-/* TODO instead of restarting the read when the code isn't in the first level
- * of the joint table, jump into the 2nd level of the individual table. */
-#define READ_2PIX(dst0, dst1, plane1){\
- uint16_t code = get_vlc2(&s->gb, s->vlc[3+plane1].table, VLC_BITS, 1);\
- if(code != 0xffff){\
- dst0 = code>>8;\
- dst1 = code;\
- }else{\
- dst0 = get_vlc2(&s->gb, s->vlc[0].table, VLC_BITS, 3);\
- dst1 = get_vlc2(&s->gb, s->vlc[plane1].table, VLC_BITS, 3);\
- }\
-}
+/** Subset of GET_VLC for use in hand-roller VLC code */
+#define VLC_INTERN(dst, table, gb, name, bits, max_depth) \
+ code = table[index][0]; \
+ n = table[index][1]; \
+ if (max_depth > 1 && n < 0) { \
+ LAST_SKIP_BITS(name, gb, bits); \
+ UPDATE_CACHE(name, gb); \
+ \
+ nb_bits = -n; \
+ index = SHOW_UBITS(name, gb, nb_bits) + code; \
+ code = table[index][0]; \
+ n = table[index][1]; \
+ if (max_depth > 2 && n < 0) { \
+ LAST_SKIP_BITS(name, gb, nb_bits); \
+ UPDATE_CACHE(name, gb); \
+ \
+ nb_bits = -n; \
+ index = SHOW_UBITS(name, gb, nb_bits) + code; \
+ code = table[index][0]; \
+ n = table[index][1]; \
+ } \
+ } \
+ dst = code; \
+ LAST_SKIP_BITS(name, gb, n)
+
+
+#define GET_VLC_DUAL(dst0, dst1, name, gb, dtable, table1, table2, \
+ bits, max_depth, OP) \
+ do { \
+ unsigned int index = SHOW_UBITS(name, gb, bits); \
+ int code, n = dtable[index][1]; \
+ \
+ if (n<=0) { \
+ int nb_bits; \
+ VLC_INTERN(dst0, table1, gb, name, bits, max_depth); \
+ \
+ UPDATE_CACHE(re, gb); \
+ index = SHOW_UBITS(name, gb, bits); \
+ VLC_INTERN(dst1, table2, gb, name, bits, max_depth); \
+ } else { \
+ code = dtable[index][0]; \
+ OP(dst0, dst1, code); \
+ LAST_SKIP_BITS(name, gb, n); \
+ } \
+ } while (0)
+
+#define OP8bits(dst0, dst1, code) dst0 = code>>8; dst1 = code
+
+#define READ_2PIX(dst0, dst1, plane1)\
+ UPDATE_CACHE(re, &s->gb); \
+ GET_VLC_DUAL(dst0, dst1, re, &s->gb, s->vlc[4+plane1].table, \
+ s->vlc[0].table, s->vlc[plane1].table, VLC_BITS, 3, OP8bits)
static void decode_422_bitstream(HYuvContext *s, int count)
{
- int i;
-
+ int i, icount;
+ OPEN_READER(re, &s->gb);
count /= 2;
- if (count >= (get_bits_left(&s->gb)) / (31 * 4)) {
- for (i = 0; i < count && get_bits_left(&s->gb) > 0; i++) {
+ icount = get_bits_left(&s->gb) / (32 * 4);
+ if (count >= icount) {
+ for (i = 0; i < icount; i++) {
+ READ_2PIX(s->temp[0][2 * i ], s->temp[1][i], 1);
+ READ_2PIX(s->temp[0][2 * i + 1], s->temp[2][i], 2);
+ }
+ for (; i < count && get_bits_left(&s->gb) > 0; i++) {
READ_2PIX(s->temp[0][2 * i ], s->temp[1][i], 1);
+ if (get_bits_left(&s->gb) <= 0) break;
READ_2PIX(s->temp[0][2 * i + 1], s->temp[2][i], 2);
}
+ for (; i < count; i++)
+ s->temp[0][2 * i ] = s->temp[1][i] =
+ s->temp[0][2 * i + 1] = s->temp[2][i] = 0;
} else {
for (i = 0; i < count; i++) {
READ_2PIX(s->temp[0][2 * i ], s->temp[1][i], 1);
READ_2PIX(s->temp[0][2 * i + 1], s->temp[2][i], 2);
}
}
+ CLOSE_READER(re, &s->gb);
}
-static void decode_gray_bitstream(HYuvContext *s, int count)
+#define READ_2PIX_PLANE(dst0, dst1, plane, OP) \
+ UPDATE_CACHE(re, &s->gb); \
+ GET_VLC_DUAL(dst0, dst1, re, &s->gb, s->vlc[4+plane].table, \
+ s->vlc[plane].table, s->vlc[plane].table, VLC_BITS, 3, OP)
+
+#define OP14bits(dst0, dst1, code) dst0 = code>>8; dst1 = sign_extend(code, 8)
+
+/* TODO instead of restarting the read when the code isn't in the first level
+ * of the joint table, jump into the 2nd level of the individual table. */
+#define READ_2PIX_PLANE16(dst0, dst1, plane){\
+ dst0 = get_vlc2(&s->gb, s->vlc[plane].table, VLC_BITS, 3)<<2;\
+ dst0 += get_bits(&s->gb, 2);\
+ dst1 = get_vlc2(&s->gb, s->vlc[plane].table, VLC_BITS, 3)<<2;\
+ dst1 += get_bits(&s->gb, 2);\
+}
+static void decode_plane_bitstream(HYuvContext *s, int count, int plane)
{
int i;
count/=2;
- if (count >= (get_bits_left(&s->gb)) / (31 * 2)) {
+ if (s->bps <= 8) {
+ OPEN_READER(re, &s->gb);
+ if (count >= (get_bits_left(&s->gb)) / (32 * 2)) {
+ for (i = 0; i < count && get_bits_left(&s->gb) > 0; i++) {
+ READ_2PIX_PLANE(s->temp[0][2 * i], s->temp[0][2 * i + 1], plane, OP8bits);
+ }
+ } else {
+ for(i=0; i<count; i++){
+ READ_2PIX_PLANE(s->temp[0][2 * i], s->temp[0][2 * i + 1], plane, OP8bits);
+ }
+ }
+ CLOSE_READER(re, &s->gb);
+ } else if (s->bps <= 14) {
+ OPEN_READER(re, &s->gb);
+ if (count >= (get_bits_left(&s->gb)) / (32 * 2)) {
+ for (i = 0; i < count && get_bits_left(&s->gb) > 0; i++) {
+ READ_2PIX_PLANE(s->temp16[0][2 * i], s->temp16[0][2 * i + 1], plane, OP14bits);
+ }
+ } else {
+ for(i=0; i<count; i++){
+ READ_2PIX_PLANE(s->temp16[0][2 * i], s->temp16[0][2 * i + 1], plane, OP14bits);
+ }
+ }
+ CLOSE_READER(re, &s->gb);
+ } else {
+ if (count >= (get_bits_left(&s->gb)) / (32 * 2)) {
+ for (i = 0; i < count && get_bits_left(&s->gb) > 0; i++) {
+ READ_2PIX_PLANE16(s->temp16[0][2 * i], s->temp16[0][2 * i + 1], plane);
+ }
+ } else {
+ for(i=0; i<count; i++){
+ READ_2PIX_PLANE16(s->temp16[0][2 * i], s->temp16[0][2 * i + 1], plane);
+ }
+ }
+ }
+}
+
+static void decode_gray_bitstream(HYuvContext *s, int count)
+{
+ int i;
+ OPEN_READER(re, &s->gb);
+ count/=2;
+
+ if (count >= (get_bits_left(&s->gb)) / (32 * 2)) {
for (i = 0; i < count && get_bits_left(&s->gb) > 0; i++) {
READ_2PIX(s->temp[0][2 * i], s->temp[0][2 * i + 1], 0);
}
@@ -402,30 +715,66 @@ static void decode_gray_bitstream(HYuvContext *s, int count)
READ_2PIX(s->temp[0][2 * i], s->temp[0][2 * i + 1], 0);
}
}
+ CLOSE_READER(re, &s->gb);
}
static av_always_inline void decode_bgr_1(HYuvContext *s, int count,
int decorrelate, int alpha)
{
int i;
- for (i = 0; i < count; i++) {
- int code = get_vlc2(&s->gb, s->vlc[3].table, VLC_BITS, 1);
- if (code != -1) {
+ OPEN_READER(re, &s->gb);
+
+ for (i = 0; i < count && get_bits_left(&s->gb) > 0; i++) {
+ unsigned int index;
+ int code, n;
+
+ UPDATE_CACHE(re, &s->gb);
+ index = SHOW_UBITS(re, &s->gb, VLC_BITS);
+ n = s->vlc[4].table[index][1];
+
+ if (n>0) {
+ code = s->vlc[4].table[index][0];
*(uint32_t*)&s->temp[0][4 * i] = s->pix_bgr_map[code];
- } else if(decorrelate) {
- s->temp[0][4 * i + G] = get_vlc2(&s->gb, s->vlc[1].table, VLC_BITS, 3);
- s->temp[0][4 * i + B] = get_vlc2(&s->gb, s->vlc[0].table, VLC_BITS, 3) +
- s->temp[0][4 * i + G];
- s->temp[0][4 * i + R] = get_vlc2(&s->gb, s->vlc[2].table, VLC_BITS, 3) +
- s->temp[0][4 * i + G];
+ LAST_SKIP_BITS(re, &s->gb, n);
} else {
- s->temp[0][4 * i + B] = get_vlc2(&s->gb, s->vlc[0].table, VLC_BITS, 3);
- s->temp[0][4 * i + G] = get_vlc2(&s->gb, s->vlc[1].table, VLC_BITS, 3);
- s->temp[0][4 * i + R] = get_vlc2(&s->gb, s->vlc[2].table, VLC_BITS, 3);
+ int nb_bits;
+ if(decorrelate) {
+ VLC_INTERN(s->temp[0][4 * i + G], s->vlc[1].table,
+ &s->gb, re, VLC_BITS, 3);
+
+ UPDATE_CACHE(re, &s->gb);
+ index = SHOW_UBITS(re, &s->gb, VLC_BITS);
+ VLC_INTERN(code, s->vlc[0].table, &s->gb, re, VLC_BITS, 3);
+ s->temp[0][4 * i + B] = code + s->temp[0][4 * i + G];
+
+ UPDATE_CACHE(re, &s->gb);
+ index = SHOW_UBITS(re, &s->gb, VLC_BITS);
+ VLC_INTERN(code, s->vlc[2].table, &s->gb, re, VLC_BITS, 3);
+ s->temp[0][4 * i + R] = code + s->temp[0][4 * i + G];
+ } else {
+ VLC_INTERN(s->temp[0][4 * i + B], s->vlc[0].table,
+ &s->gb, re, VLC_BITS, 3);
+
+ UPDATE_CACHE(re, &s->gb);
+ index = SHOW_UBITS(re, &s->gb, VLC_BITS);
+ VLC_INTERN(s->temp[0][4 * i + G], s->vlc[1].table,
+ &s->gb, re, VLC_BITS, 3);
+
+ UPDATE_CACHE(re, &s->gb);
+ index = SHOW_UBITS(re, &s->gb, VLC_BITS);
+ VLC_INTERN(s->temp[0][4 * i + R], s->vlc[2].table,
+ &s->gb, re, VLC_BITS, 3);
+ }
+ if (alpha) {
+ UPDATE_CACHE(re, &s->gb);
+ index = SHOW_UBITS(re, &s->gb, VLC_BITS);
+ VLC_INTERN(s->temp[0][4 * i + A], s->vlc[2].table,
+ &s->gb, re, VLC_BITS, 3);
+ } else
+ s->temp[0][4 * i + A] = 0;
}
- if (alpha)
- s->temp[0][4 * i + A] = get_vlc2(&s->gb, s->vlc[2].table, VLC_BITS, 3);
}
+ CLOSE_READER(re, &s->gb);
}
static void decode_bgr_bitstream(HYuvContext *s, int count)
@@ -472,6 +821,32 @@ static void draw_slice(HYuvContext *s, AVFrame *frame, int y)
s->last_slice_end = y + h;
}
+static int left_prediction(HYuvContext *s, uint8_t *dst, const uint8_t *src, int w, int acc)
+{
+ if (s->bps <= 8) {
+ return s->hdsp.add_hfyu_left_pred(dst, src, w, acc);
+ } else {
+ return s->llviddsp.add_hfyu_left_pred_int16(( uint16_t *)dst, (const uint16_t *)src, s->n-1, w, acc);
+ }
+}
+
+static void add_bytes(HYuvContext *s, uint8_t *dst, uint8_t *src, int w)
+{
+ if (s->bps <= 8) {
+ s->hdsp.add_bytes(dst, src, w);
+ } else {
+ s->llviddsp.add_int16((uint16_t*)dst, (const uint16_t*)src, s->n - 1, w);
+ }
+}
+
+static void add_median_prediction(HYuvContext *s, uint8_t *dst, const uint8_t *src, const uint8_t *diff, int w, int *left, int *left_top)
+{
+ if (s->bps <= 8) {
+ s->hdsp.add_hfyu_median_pred(dst, src, diff, w, left, left_top);
+ } else {
+ s->llviddsp.add_hfyu_median_pred_int16((uint16_t *)dst, (const uint16_t *)src, (const uint16_t *)diff, s->n-1, w, left, left_top);
+ }
+}
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
AVPacket *avpkt)
{
@@ -484,31 +859,28 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
int fake_ystride, fake_ustride, fake_vstride;
ThreadFrame frame = { .f = data };
AVFrame * const p = data;
- int table_size = 0;
+ int table_size = 0, ret;
- av_fast_malloc(&s->bitstream_buffer,
+ av_fast_padded_malloc(&s->bitstream_buffer,
&s->bitstream_buffer_size,
- buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
+ buf_size);
if (!s->bitstream_buffer)
return AVERROR(ENOMEM);
- memset(s->bitstream_buffer + buf_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
s->bdsp.bswap_buf((uint32_t *) s->bitstream_buffer,
(const uint32_t *) buf, buf_size / 4);
- if (ff_thread_get_buffer(avctx, &frame, 0) < 0) {
- av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
- return -1;
- }
+ if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0)
+ return ret;
if (s->context) {
table_size = read_huffman_tables(s, s->bitstream_buffer, buf_size);
if (table_size < 0)
- return -1;
+ return AVERROR_INVALIDDATA;
}
if ((unsigned)(buf_size-table_size) >= INT_MAX / 8)
- return -1;
+ return AVERROR_INVALIDDATA;
init_get_bits(&s->gb, s->bitstream_buffer+table_size,
(buf_size-table_size) * 8);
@@ -519,7 +891,72 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
s->last_slice_end = 0;
- if (s->bitstream_bpp < 24) {
+ if (s->version > 2) {
+ int plane;
+ for(plane = 0; plane < 1 + 2*s->chroma + s->alpha; plane++) {
+ int left, lefttop, y;
+ int w = width;
+ int h = height;
+ int fake_stride = fake_ystride;
+
+ if (s->chroma && (plane == 1 || plane == 2)) {
+ w >>= s->chroma_h_shift;
+ h >>= s->chroma_v_shift;
+ fake_stride = plane == 1 ? fake_ustride : fake_vstride;
+ }
+
+ switch (s->predictor) {
+ case LEFT:
+ case PLANE:
+ decode_plane_bitstream(s, w, plane);
+ left = left_prediction(s, p->data[plane], s->temp[0], w, 0);
+
+ for (y = 1; y < h; y++) {
+ uint8_t *dst = p->data[plane] + p->linesize[plane]*y;
+
+ decode_plane_bitstream(s, w, plane);
+ left = left_prediction(s, dst, s->temp[0], w, left);
+ if (s->predictor == PLANE) {
+ if (y > s->interlaced) {
+ add_bytes(s, dst, dst - fake_stride, w);
+ }
+ }
+ }
+
+ break;
+ case MEDIAN:
+ decode_plane_bitstream(s, w, plane);
+ left= left_prediction(s, p->data[plane], s->temp[0], w, 0);
+
+ y = 1;
+
+ /* second line is left predicted for interlaced case */
+ if (s->interlaced) {
+ decode_plane_bitstream(s, w, plane);
+ left = left_prediction(s, p->data[plane] + p->linesize[plane], s->temp[0], w, left);
+ y++;
+ }
+
+ lefttop = p->data[plane][0];
+ decode_plane_bitstream(s, w, plane);
+ add_median_prediction(s, p->data[plane] + fake_stride, p->data[plane], s->temp[0], w, &left, &lefttop);
+ y++;
+
+ for (; y<h; y++) {
+ uint8_t *dst;
+
+ decode_plane_bitstream(s, w, plane);
+
+ dst = p->data[plane] + p->linesize[plane] * y;
+
+ add_median_prediction(s, dst, dst - fake_stride, s->temp[0], w, &left, &lefttop);
+ }
+
+ break;
+ }
+ }
+ draw_slice(s, p, height);
+ } else if (s->bitstream_bpp < 24) {
int y, cy;
int lefty, leftu, leftv;
int lefttopy, lefttopu, lefttopv;
@@ -532,7 +969,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
av_log(avctx, AV_LOG_ERROR,
"YUY2 output is not implemented yet\n");
- return -1;
+ return AVERROR_PATCHWELCOME;
} else {
leftv = p->data[2][0] = get_bits(&s->gb, 8);
@@ -667,19 +1104,19 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
}
} else {
int y;
- int leftr, leftg, leftb, lefta;
+ uint8_t left[4];
const int last_line = (height - 1) * p->linesize[0];
if (s->bitstream_bpp == 32) {
- lefta = p->data[0][last_line+A] = get_bits(&s->gb, 8);
- leftr = p->data[0][last_line+R] = get_bits(&s->gb, 8);
- leftg = p->data[0][last_line+G] = get_bits(&s->gb, 8);
- leftb = p->data[0][last_line+B] = get_bits(&s->gb, 8);
+ left[A] = p->data[0][last_line+A] = get_bits(&s->gb, 8);
+ left[R] = p->data[0][last_line+R] = get_bits(&s->gb, 8);
+ left[G] = p->data[0][last_line+G] = get_bits(&s->gb, 8);
+ left[B] = p->data[0][last_line+B] = get_bits(&s->gb, 8);
} else {
- leftr = p->data[0][last_line+R] = get_bits(&s->gb, 8);
- leftg = p->data[0][last_line+G] = get_bits(&s->gb, 8);
- leftb = p->data[0][last_line+B] = get_bits(&s->gb, 8);
- lefta = p->data[0][last_line+A] = 255;
+ left[R] = p->data[0][last_line+R] = get_bits(&s->gb, 8);
+ left[G] = p->data[0][last_line+G] = get_bits(&s->gb, 8);
+ left[B] = p->data[0][last_line+B] = get_bits(&s->gb, 8);
+ left[A] = p->data[0][last_line+A] = 255;
skip_bits(&s->gb, 8);
}
@@ -688,14 +1125,14 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
case LEFT:
case PLANE:
decode_bgr_bitstream(s, width - 1);
- s->hdsp.add_hfyu_left_pred_bgr32(p->data[0] + last_line + 4, s->temp[0], width - 1, &leftr, &leftg, &leftb, &lefta);
+ s->hdsp.add_hfyu_left_pred_bgr32(p->data[0] + last_line + 4, s->temp[0], width - 1, left);
for (y = s->height - 2; y >= 0; y--) { //Yes it is stored upside down.
decode_bgr_bitstream(s, width);
- s->hdsp.add_hfyu_left_pred_bgr32(p->data[0] + p->linesize[0] * y, s->temp[0], width, &leftr, &leftg, &leftb, &lefta);
+ s->hdsp.add_hfyu_left_pred_bgr32(p->data[0] + p->linesize[0] * y, s->temp[0], width, left);
if (s->predictor == PLANE) {
- if (s->bitstream_bpp != 32) lefta = 0;
+ if (s->bitstream_bpp != 32) left[A] = 0;
if ((y & s->interlaced) == 0 &&
y < s->height - 1 - s->interlaced) {
s->hdsp.add_bytes(p->data[0] + p->linesize[0] * y,
@@ -714,7 +1151,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
}else{
av_log(avctx, AV_LOG_ERROR,
"BGR24 output is not implemented yet\n");
- return -1;
+ return AVERROR_PATCHWELCOME;
}
}
emms_c();
@@ -732,7 +1169,7 @@ static av_cold int decode_end(AVCodecContext *avctx)
ff_huffyuv_common_end(s);
av_freep(&s->bitstream_buffer);
- for (i = 0; i < 6; i++) {
+ for (i = 0; i < 8; i++) {
ff_free_vlc(&s->vlc[i]);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-10 08:43:17 +0000