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Code Issues Releases Activity

Merge remote-tracking branch 'qatar/master'

Browse Source 
* qatar/master:
  FATE: add tests for targa
  ARM: fix Thumb-mode simple_idct_arm
  ARM: 4-byte align start of all asm functions
  rgb2rgb: rgb12to15()
  swscale-test: fix stack overread.
  swscale: fix invalid conversions and memory problems.
  cabac: split cabac.h into declarations and function definitions
  cabac: Mark ff_h264_mps_state array as static, it is only used within cabac.c.
  cabac: Remove ff_h264_lps_state array.

Conflicts:
	libswscale/rgb2rgb.h
	libswscale/swscale_unscaled.c
	tests/fate/image.mak

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-01-14 02:22:09 +01:00
commit e986a5d10d
21 changed files with 263 additions and 169 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
libavcodec/arm/asm.S
View File

@ -68,6 +68,7 @@ ELF .size \name, . - \name
.purgem endfunc
.endm
.text
.align 2
.if \export
.global EXTERN_ASM\name
EXTERN_ASM\name:

2
libavcodec/arm/simple_idct_arm.S
View File

@ -491,8 +491,8 @@ __end_bef_a_evaluation:
bal __end_a_evaluation
__constant_ptr__: @@ see #defines at the beginning of the source code for values.
.align
__constant_ptr__: @@ see #defines at the beginning of the source code for values.
.word W1
.word W2
.word W3

11
libavcodec/cabac.c
View File

@ -29,6 +29,7 @@
#include "libavutil/common.h"
#include "get_bits.h"
#include "cabac.h"
#include "cabac_functions.h"
static const uint8_t lps_range[64][4]= {
{128,176,208,240}, {128,167,197,227}, {128,158,187,216}, {123,150,178,205},
@ -51,8 +52,7 @@ static const uint8_t lps_range[64][4]= {
uint8_t ff_h264_mlps_state[4*64];
uint8_t ff_h264_lps_range[4*2*64];
uint8_t ff_h264_lps_state[2*64];
uint8_t ff_h264_mps_state[2*64];
static uint8_t h264_mps_state[2 * 64];
static const uint8_t mps_state[64]= {
1, 2, 3, 4, 5, 6, 7, 8,
@ -141,9 +141,9 @@ void ff_init_cabac_states(CABACContext *c){
}
ff_h264_mlps_state[128+2*i+0]=
ff_h264_mps_state[2*i+0]= 2*mps_state[i]+0;
h264_mps_state[2 * i + 0] = 2 * mps_state[i] + 0;
ff_h264_mlps_state[128+2*i+1]=
ff_h264_mps_state[2*i+1]= 2*mps_state[i]+1;
h264_mps_state[2 * i + 1] = 2 * mps_state[i] + 1;
if( i ){
ff_h264_lps_state[2*i+0]=
@ -196,11 +196,10 @@ static void put_cabac(CABACContext *c, uint8_t * const state, int bit){
if(bit == ((*state)&1)){
c->range -= RangeLPS;
*state= ff_h264_mps_state[*state];
*state = h264_mps_state[*state];
}else{
c->low += c->range - RangeLPS;
c->range = RangeLPS;
*state= ff_h264_lps_state[*state];
}
renorm_cabac_encoder(c);

133
libavcodec/cabac.h
View File

@ -27,13 +27,10 @@
#ifndef AVCODEC_CABAC_H
#define AVCODEC_CABAC_H
#include <stddef.h>
#include <stdint.h>
#include "put_bits.h"
//#undef NDEBUG
#include <assert.h>
#define CABAC_BITS 16
#define CABAC_MASK ((1<<CABAC_BITS)-1)
@ -47,136 +44,8 @@ typedef struct CABACContext{
PutBitContext pb;
}CABACContext;
extern uint8_t ff_h264_mlps_state[4*64];
extern uint8_t ff_h264_lps_range[4*2*64]; ///< rangeTabLPS
extern uint8_t ff_h264_mps_state[2*64]; ///< transIdxMPS
extern uint8_t ff_h264_lps_state[2*64]; ///< transIdxLPS
extern const uint8_t ff_h264_norm_shift[512];
#if ARCH_X86
# include "x86/cabac.h"
#endif
void ff_init_cabac_encoder(CABACContext *c, uint8_t *buf, int buf_size);
void ff_init_cabac_decoder(CABACContext *c, const uint8_t *buf, int buf_size);
void ff_init_cabac_states(CABACContext *c);
static void refill(CABACContext *c){
#if CABAC_BITS == 16
c->low+= (c->bytestream[0]<<9) + (c->bytestream[1]<<1);
#else
c->low+= c->bytestream[0]<<1;
#endif
c->low -= CABAC_MASK;
c->bytestream+= CABAC_BITS/8;
}
static inline void renorm_cabac_decoder_once(CABACContext *c){
int shift= (uint32_t)(c->range - 0x100)>>31;
c->range<<= shift;
c->low <<= shift;
if(!(c->low & CABAC_MASK))
refill(c);
}
#ifndef get_cabac_inline
static void refill2(CABACContext *c){
int i, x;
x= c->low ^ (c->low-1);
i= 7 - ff_h264_norm_shift[x>>(CABAC_BITS-1)];
x= -CABAC_MASK;
#if CABAC_BITS == 16
x+= (c->bytestream[0]<<9) + (c->bytestream[1]<<1);
#else
x+= c->bytestream[0]<<1;
#endif
c->low += x<<i;
c->bytestream+= CABAC_BITS/8;
}
static av_always_inline int get_cabac_inline(CABACContext *c, uint8_t * const state){
int s = *state;
int RangeLPS= ff_h264_lps_range[2*(c->range&0xC0) + s];
int bit, lps_mask;
c->range -= RangeLPS;
lps_mask= ((c->range<<(CABAC_BITS+1)) - c->low)>>31;
c->low -= (c->range<<(CABAC_BITS+1)) & lps_mask;
c->range += (RangeLPS - c->range) & lps_mask;
s^=lps_mask;
*state= (ff_h264_mlps_state+128)[s];
bit= s&1;
lps_mask= ff_h264_norm_shift[c->range];
c->range<<= lps_mask;
c->low <<= lps_mask;
if(!(c->low & CABAC_MASK))
refill2(c);
return bit;
}
#endif
static int av_noinline av_unused get_cabac_noinline(CABACContext *c, uint8_t * const state){
return get_cabac_inline(c,state);
}
static int av_unused get_cabac(CABACContext *c, uint8_t * const state){
return get_cabac_inline(c,state);
}
static int av_unused get_cabac_bypass(CABACContext *c){
int range;
c->low += c->low;
if(!(c->low & CABAC_MASK))
refill(c);
range= c->range<<(CABAC_BITS+1);
if(c->low < range){
return 0;
}else{
c->low -= range;
return 1;
}
}
#ifndef get_cabac_bypass_sign
static av_always_inline int get_cabac_bypass_sign(CABACContext *c, int val){
int range, mask;
c->low += c->low;
if(!(c->low & CABAC_MASK))
refill(c);
range= c->range<<(CABAC_BITS+1);
c->low -= range;
mask= c->low >> 31;
range &= mask;
c->low += range;
return (val^mask)-mask;
}
#endif
/**
*
* @return the number of bytes read or 0 if no end
*/
static int av_unused get_cabac_terminate(CABACContext *c){
c->range -= 2;
if(c->low < c->range<<(CABAC_BITS+1)){
renorm_cabac_decoder_once(c);
return 0;
}else{
return c->bytestream - c->bytestream_start;
}
}
#endif /* AVCODEC_CABAC_H */

160
libavcodec/cabac_functions.h Normal file
View File

@ -0,0 +1,160 @@
/*
* H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of Libav.
*
* Libav 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,
* 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
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* Context Adaptive Binary Arithmetic Coder inline functions
*/
#ifndef AVCODEC_CABAC_FUNCTIONS_H
#define AVCODEC_CABAC_FUNCTIONS_H
#include <stdint.h>
#include "cabac.h"
#include "config.h"
#if ARCH_X86
# include "x86/cabac.h"
#endif
extern const uint8_t ff_h264_norm_shift[512];
extern uint8_t ff_h264_mlps_state[4*64];
extern uint8_t ff_h264_lps_range[4*2*64]; ///< rangeTabLPS
static void refill(CABACContext *c){
#if CABAC_BITS == 16
c->low+= (c->bytestream[0]<<9) + (c->bytestream[1]<<1);
#else
c->low+= c->bytestream[0]<<1;
#endif
c->low -= CABAC_MASK;
c->bytestream+= CABAC_BITS/8;
}
static inline void renorm_cabac_decoder_once(CABACContext *c){
int shift= (uint32_t)(c->range - 0x100)>>31;
c->range<<= shift;
c->low <<= shift;
if(!(c->low & CABAC_MASK))
refill(c);
}
#ifndef get_cabac_inline
static void refill2(CABACContext *c){
int i, x;
x= c->low ^ (c->low-1);
i= 7 - ff_h264_norm_shift[x>>(CABAC_BITS-1)];
x= -CABAC_MASK;
#if CABAC_BITS == 16
x+= (c->bytestream[0]<<9) + (c->bytestream[1]<<1);
#else
x+= c->bytestream[0]<<1;
#endif
c->low += x<<i;
c->bytestream+= CABAC_BITS/8;
}
static av_always_inline int get_cabac_inline(CABACContext *c, uint8_t * const state){
int s = *state;
int RangeLPS= ff_h264_lps_range[2*(c->range&0xC0) + s];
int bit, lps_mask;
c->range -= RangeLPS;
lps_mask= ((c->range<<(CABAC_BITS+1)) - c->low)>>31;
c->low -= (c->range<<(CABAC_BITS+1)) & lps_mask;
c->range += (RangeLPS - c->range) & lps_mask;
s^=lps_mask;
*state= (ff_h264_mlps_state+128)[s];
bit= s&1;
lps_mask= ff_h264_norm_shift[c->range];
c->range<<= lps_mask;
c->low <<= lps_mask;
if(!(c->low & CABAC_MASK))
refill2(c);
return bit;
}
#endif
static int av_noinline av_unused get_cabac_noinline(CABACContext *c, uint8_t * const state){
return get_cabac_inline(c,state);
}
static int av_unused get_cabac(CABACContext *c, uint8_t * const state){
return get_cabac_inline(c,state);
}
static int av_unused get_cabac_bypass(CABACContext *c){
int range;
c->low += c->low;
if(!(c->low & CABAC_MASK))
refill(c);
range= c->range<<(CABAC_BITS+1);
if(c->low < range){
return 0;
}else{
c->low -= range;
return 1;
}
}
#ifndef get_cabac_bypass_sign
static av_always_inline int get_cabac_bypass_sign(CABACContext *c, int val){
int range, mask;
c->low += c->low;
if(!(c->low & CABAC_MASK))
refill(c);
range= c->range<<(CABAC_BITS+1);
c->low -= range;
mask= c->low >> 31;
range &= mask;
c->low += range;
return (val^mask)-mask;
}
#endif
/**
*
* @return the number of bytes read or 0 if no end
*/
static int av_unused get_cabac_terminate(CABACContext *c){
c->range -= 2;
if(c->low < c->range<<(CABAC_BITS+1)){
renorm_cabac_decoder_once(c);
return 0;
}else{
return c->bytestream - c->bytestream_start;
}
}
#endif /* AVCODEC_CABAC_FUNCTIONS_H */

4
libavcodec/h264.c
View File

@ -30,6 +30,8 @@
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "internal.h"
#include "cabac.h"
#include "cabac_functions.h"
#include "dsputil.h"
#include "avcodec.h"
#include "mpegvideo.h"
@ -43,8 +45,6 @@
#include "vdpau_internal.h"
#include "libavutil/avassert.h"
#include "cabac.h"
//#undef NDEBUG
#include <assert.h>

4
libavcodec/h264_cabac.c
View File

@ -28,6 +28,9 @@
#define CABAC 1
#define UNCHECKED_BITSTREAM_READER 1
#include "config.h"
#include "cabac.h"
#include "cabac_functions.h"
#include "internal.h"
#include "dsputil.h"
#include "avcodec.h"
@ -36,7 +39,6 @@
#include "h264_mvpred.h"
#include "golomb.h"
#include "cabac.h"
#if ARCH_X86
#include "x86/h264_i386.h"
#endif

19
libswscale/rgb2rgb.c
View File

@ -183,6 +183,25 @@ void rgb16tobgr32(const uint8_t *src, uint8_t *dst, int src_size)
}
}
void rgb12to15(const uint8_t *src, uint8_t *dst, int src_size)
{
const uint16_t *end;
uint16_t *d = (uint16_t *)dst;
const uint16_t *s = (const uint16_t *)src;
uint16_t rgb, r, g, b;
end = s + src_size / 2;
while (s < end) {
rgb = *s++;
r = rgb & 0xF00;
g = rgb & 0x0F0;
b = rgb & 0x00F;
r = (r << 3) | ((r & 0x800) >> 1);
g = (g << 2) | ((g & 0x080) >> 2);
b = (b << 1) | ( b >> 3);
*d++ = r | g | b;
}
}
void rgb16to24(const uint8_t *src, uint8_t *dst, int src_size)
{
const uint16_t *end;

1
libswscale/rgb2rgb.h
View File

@ -63,6 +63,7 @@ void rgb15to24(const uint8_t *src, uint8_t *dst, int src_size);
void rgb15tobgr16(const uint8_t *src, uint8_t *dst, int src_size);
void rgb15tobgr15(const uint8_t *src, uint8_t *dst, int src_size);
void rgb12tobgr12(const uint8_t *src, uint8_t *dst, int src_size);
void rgb12to15(const uint8_t *src, uint8_t *dst, int src_size);
void shuffle_bytes_0321(const uint8_t *src, uint8_t *dst, int src_size);
void shuffle_bytes_1230(const uint8_t *src, uint8_t *dst, int src_size);

4
libswscale/swscale-test.c
View File

@ -340,8 +340,8 @@ int main(int argc, char **argv)
enum PixelFormat srcFormat = PIX_FMT_NONE;
enum PixelFormat dstFormat = PIX_FMT_NONE;
uint8_t *rgb_data = av_malloc(W * H * 4);
uint8_t *rgb_src[3] = { rgb_data, NULL, NULL };
int rgb_stride[3] = { 4 * W, 0, 0 };
uint8_t *rgb_src[4] = { rgb_data, NULL, NULL, NULL };
int rgb_stride[4] = { 4 * W, 0, 0, 0 };
uint8_t *data = av_malloc(4 * W * H);
uint8_t *src[4] = { data, data + W * H, data + W * H * 2, data + W * H * 3 };
int stride[4] = { W, W, W, W };

55
libswscale/swscale_unscaled.c
View File

@ -396,17 +396,22 @@ static int planarRgbToRgbWrapper(SwsContext *c, const uint8_t* src[], int srcStr
)
/* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */
static int rgbToRgbWrapper(SwsContext *c, const uint8_t *src[], int srcStride[],
int srcSliceY, int srcSliceH, uint8_t *dst[],
int dstStride[])
typedef void (* rgbConvFn) (const uint8_t *, uint8_t *, int);
static rgbConvFn findRgbConvFn(SwsContext *c)
{
const enum PixelFormat srcFormat = c->srcFormat;
const enum PixelFormat dstFormat = c->dstFormat;
const int srcBpp = (c->srcFormatBpp + 7) >> 3;
const int dstBpp = (c->dstFormatBpp + 7) >> 3;
const int srcId = c->srcFormatBpp;
const int dstId = c->dstFormatBpp;
void (*conv)(const uint8_t *src, uint8_t *dst, int src_size) = NULL;
rgbConvFn conv = NULL;
#define IS_NOT_NE(bpp, fmt) \
(((bpp + 7) >> 3) == 2 && \
(!(av_pix_fmt_descriptors[fmt].flags & PIX_FMT_BE) != !HAVE_BIGENDIAN))
/* if this is non-native rgb444/555/565, don't handle it here. */
if (IS_NOT_NE(srcId, srcFormat) || IS_NOT_NE(dstId, dstFormat))
return NULL;
#define CONV_IS(src, dst) (srcFormat == PIX_FMT_##src && dstFormat == PIX_FMT_##dst)
@ -428,6 +433,7 @@ static int rgbToRgbWrapper(SwsContext *c, const uint8_t *src[], int srcStride[],
if ((isBGRinInt(srcFormat) && isBGRinInt(dstFormat)) ||
(isRGBinInt(srcFormat) && isRGBinInt(dstFormat))) {
switch (srcId | (dstId << 16)) {
case 0x000F000C: conv = rgb12to15; break;
case 0x000F0010: conv = rgb16to15; break;
case 0x000F0018: conv = rgb24to15; break;
case 0x000F0020: conv = rgb32to15; break;
@ -463,6 +469,21 @@ static int rgbToRgbWrapper(SwsContext *c, const uint8_t *src[], int srcStride[],
}
}
return conv;
}
/* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */
static int rgbToRgbWrapper(SwsContext *c, const uint8_t *src[], int srcStride[],
int srcSliceY, int srcSliceH, uint8_t *dst[],
int dstStride[])
{
const enum PixelFormat srcFormat = c->srcFormat;
const enum PixelFormat dstFormat = c->dstFormat;
const int srcBpp = (c->srcFormatBpp + 7) >> 3;
const int dstBpp = (c->dstFormatBpp + 7) >> 3;
rgbConvFn conv = findRgbConvFn(c);
if (!conv) {
av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
@ -694,6 +715,8 @@ static int planarCopyWrapper(SwsContext *c, const uint8_t *src[],
} else {
if (is16BPS(c->srcFormat) && is16BPS(c->dstFormat))
length *= 2;
else if (!av_pix_fmt_descriptors[c->srcFormat].comp[0].depth_minus1)
length >>= 3; // monowhite/black
for (i = 0; i < height; i++) {
memcpy(dstPtr, srcPtr, length);
srcPtr += srcStride[plane];
@ -748,24 +771,8 @@ void ff_get_unscaled_swscale(SwsContext *c)
c->swScale = bgr24ToYv12Wrapper;
/* RGB/BGR -> RGB/BGR (no dither needed forms) */
if ( isAnyRGB(srcFormat)
&& isAnyRGB(dstFormat)
&& srcFormat != PIX_FMT_BGR8 && dstFormat != PIX_FMT_BGR8
&& srcFormat != PIX_FMT_RGB8 && dstFormat != PIX_FMT_RGB8
&& srcFormat != PIX_FMT_BGR4 && dstFormat != PIX_FMT_BGR4
&& srcFormat != PIX_FMT_RGB4 && dstFormat != PIX_FMT_RGB4
&& srcFormat != PIX_FMT_BGR4_BYTE && dstFormat != PIX_FMT_BGR4_BYTE
&& srcFormat != PIX_FMT_RGB4_BYTE && dstFormat != PIX_FMT_RGB4_BYTE
&& srcFormat != PIX_FMT_MONOBLACK && dstFormat != PIX_FMT_MONOBLACK
&& srcFormat != PIX_FMT_MONOWHITE && dstFormat != PIX_FMT_MONOWHITE
&& srcFormat != PIX_FMT_RGB48LE && dstFormat != PIX_FMT_RGB48LE
&& srcFormat != PIX_FMT_RGB48BE && dstFormat != PIX_FMT_RGB48BE
&& srcFormat != PIX_FMT_BGR48LE && dstFormat != PIX_FMT_BGR48LE
&& srcFormat != PIX_FMT_BGR48BE && dstFormat != PIX_FMT_BGR48BE
&& (!needsDither || (c->flags&(SWS_FAST_BILINEAR|SWS_POINT)))
&& (!(av_pix_fmt_descriptors[srcFormat].flags & PIX_FMT_BE) == !HAVE_BIGENDIAN || (c->srcFormatBpp+7)/8!=2)
&& (!(av_pix_fmt_descriptors[dstFormat].flags & PIX_FMT_BE) == !HAVE_BIGENDIAN || (c->dstFormatBpp+7)/8!=2)
)
if (isAnyRGB(srcFormat) && isAnyRGB(dstFormat) && findRgbConvFn(c)
&& (!needsDither || (c->flags&(SWS_FAST_BILINEAR|SWS_POINT))))
c->swScale= rgbToRgbWrapper;
#define isByteRGB(f) (\

29
tests/fate/image.mak
View File

@ -30,6 +30,33 @@ fate-sunraster-24bit-raw: CMD = framecrc -i $(SAMPLES)/sunraster/lena-24bit-raw.
FATE_IMAGE += fate-sunraster-24bit-rle
fate-sunraster-24bit-rle: CMD = framecrc -i $(SAMPLES)/sunraster/lena-24bit-rle.sun
FATE_TESTS += $(FATE_IMAGE)
fate-image: $(FATE_IMAGE)
FATE_TARGA = CBW8 \
CTC16 \
CTC24 \
CTC32 \
UBW8 \
UTC16 \
UTC24 \
UTC32
FATE_TARGA := $(FATE_TARGA:%=fate-targa-conformance-%) \
fate-targa-top-to-bottom
FATE_TESTS += $(FATE_TARGA)
fate-targa: $(FATE_TARGA)
fate-targa-conformance-CBW8: CMD = framecrc -i $(SAMPLES)/targa-conformance/CBW8.TGA
# fate-targa-conformance-CCM8: CMD = framecrc -i $(SAMPLES)/targa-conformance/CCM8.TGA
fate-targa-conformance-CTC16: CMD = framecrc -i $(SAMPLES)/targa-conformance/CTC16.TGA
fate-targa-conformance-CTC24: CMD = framecrc -i $(SAMPLES)/targa-conformance/CTC24.TGA
fate-targa-conformance-CTC32: CMD = framecrc -i $(SAMPLES)/targa-conformance/CTC32.TGA
fate-targa-conformance-UBW8: CMD = framecrc -i $(SAMPLES)/targa-conformance/UBW8.TGA
# fate-targa-conformance-UCM8: CMD = framecrc -i $(SAMPLES)/targa-conformance/UCM8.TGA
fate-targa-conformance-UTC16: CMD = framecrc -i $(SAMPLES)/targa-conformance/UTC16.TGA
fate-targa-conformance-UTC24: CMD = framecrc -i $(SAMPLES)/targa-conformance/UTC24.TGA
fate-targa-conformance-UTC32: CMD = framecrc -i $(SAMPLES)/targa-conformance/UTC32.TGA
fate-targa-top-to-bottom: CMD = framecrc -i $(SAMPLES)/targa/lena-top-to-bottom.tga

1
tests/ref/fate/targa-conformance-CBW8 Normal file
View File

@ -0,0 +1 @@
0, 0, 16384, 0x267e21ef

1
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tests/ref/fate/targa-conformance-UTC32 Normal file
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tests/ref/fate/targa-top-to-bottom Normal file
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