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ZLMediaKit/ext-codec/SPSParser.c
xia-chu 25c99470ee feat: add support of codec plugin
2023-12-10 11:09:04 +08:00

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h> /* for uint32_t, etc */
#include "SPSParser.h"
/********************************************
*define here
********************************************/
#define SPS_PPS_DEBUG
//#undef SPS_PPS_DEBUG
#define MAX_LEN 32
#define EXTENDED_SAR 255
#define FF_ARRAY_ELEMS(a) (sizeof(a) / sizeof((a)[0]))
#define MAX_SPS_COUNT 32
#define MAX_LOG2_MAX_FRAME_NUM (12 + 4)
#define MIN_LOG2_MAX_FRAME_NUM 4
#define H264_MAX_PICTURE_COUNT 36
#define CODEC_FLAG2_IGNORE_CROP 0x00010000 ///< Discard cropping information from SPS.
#ifndef INT_MAX
#define INT_MAX 65535
#endif //INT_MAX
#ifndef FFMIN
#define FFMIN(a,b) ((a) > (b) ? (b) : (a))
#endif
#ifndef FFMAX
#define FFMAX(a,b) ((a) > (b) ? (a) : (b))
#endif
/* report level */
#define RPT_ERR (1) // error, system error
#define RPT_WRN (2) // warning, maybe wrong, maybe OK
#define RPT_INF (3) // important information
#define RPT_DBG (4) // debug information
static int rpt_lvl = RPT_WRN; /* report level: ERR, WRN, INF, DBG */
/* report micro */
#define RPT(lvl, ...) \
do { \
if(lvl <= rpt_lvl) { \
switch(lvl) { \
case RPT_ERR: \
fprintf(stderr, "\"%s\" line %d [err]: ", __FILE__, __LINE__); \
break; \
case RPT_WRN: \
fprintf(stderr, "\"%s\" line %d [wrn]: ", __FILE__, __LINE__); \
break; \
case RPT_INF: \
fprintf(stderr, "\"%s\" line %d [inf]: ", __FILE__, __LINE__); \
break; \
case RPT_DBG: \
fprintf(stderr, "\"%s\" line %d [dbg]: ", __FILE__, __LINE__); \
break; \
default: \
fprintf(stderr, "\"%s\" line %d [???]: ", __FILE__, __LINE__); \
break; \
} \
fprintf(stderr, __VA_ARGS__); \
fprintf(stderr, "\n"); \
} \
} while(0)
static const uint8_t sg_aau8DefaultScaling4[2][16] = {
{ 6, 13, 20, 28, 13, 20, 28, 32,
20, 28, 32, 37, 28, 32, 37, 42 },
{ 10, 14, 20, 24, 14, 20, 24, 27,
20, 24, 27, 30, 24, 27, 30, 34 }
};
static const uint8_t sg_aau8DefaultScaling8[2][64] = {
{ 6, 10, 13, 16, 18, 23, 25, 27,
10, 11, 16, 18, 23, 25, 27, 29,
13, 16, 18, 23, 25, 27, 29, 31,
16, 18, 23, 25, 27, 29, 31, 33,
18, 23, 25, 27, 29, 31, 33, 36,
23, 25, 27, 29, 31, 33, 36, 38,
25, 27, 29, 31, 33, 36, 38, 40,
27, 29, 31, 33, 36, 38, 40, 42 },
{ 9, 13, 15, 17, 19, 21, 22, 24,
13, 13, 17, 19, 21, 22, 24, 25,
15, 17, 19, 21, 22, 24, 25, 27,
17, 19, 21, 22, 24, 25, 27, 28,
19, 21, 22, 24, 25, 27, 28, 30,
21, 22, 24, 25, 27, 28, 30, 32,
22, 24, 25, 27, 28, 30, 32, 33,
24, 25, 27, 28, 30, 32, 33, 35 }
};
static const T_AVRational sg_atFfH264PixelSspect[17] = {
{ 0, 1 },
{ 1, 1 },
{ 12, 11 },
{ 10, 11 },
{ 16, 11 },
{ 40, 33 },
{ 24, 11 },
{ 20, 11 },
{ 32, 11 },
{ 80, 33 },
{ 18, 11 },
{ 15, 11 },
{ 64, 33 },
{ 160, 99 },
{ 4, 3 },
{ 3, 2 },
{ 2, 1 },
};
static const uint8_t sg_au8ZigzagScan[16+1] = {
0 + 0 * 4, 1 + 0 * 4, 0 + 1 * 4, 0 + 2 * 4,
1 + 1 * 4, 2 + 0 * 4, 3 + 0 * 4, 2 + 1 * 4,
1 + 2 * 4, 0 + 3 * 4, 1 + 3 * 4, 2 + 2 * 4,
3 + 1 * 4, 3 + 2 * 4, 2 + 3 * 4, 3 + 3 * 4,
};
const uint8_t g_au8FfZigzagDirect[64] = {
0, 1, 8, 16, 9, 2, 3, 10,
17, 24, 32, 25, 18, 11, 4, 5,
12, 19, 26, 33, 40, 48, 41, 34,
27, 20, 13, 6, 7, 14, 21, 28,
35, 42, 49, 56, 57, 50, 43, 36,
29, 22, 15, 23, 30, 37, 44, 51,
58, 59, 52, 45, 38, 31, 39, 46,
53, 60, 61, 54, 47, 55, 62, 63
};
static const uint8_t sg_au8HevcSubWidthC[] = {
1, 2, 2, 1
};
static const uint8_t sg_au8HevcSubHeightC[] = {
1, 2, 1, 1
};
static const uint8_t sg_au8DefaultScalingListIntra[] = {
16, 16, 16, 16, 17, 18, 21, 24,
16, 16, 16, 16, 17, 19, 22, 25,
16, 16, 17, 18, 20, 22, 25, 29,
16, 16, 18, 21, 24, 27, 31, 36,
17, 17, 20, 24, 30, 35, 41, 47,
18, 19, 22, 27, 35, 44, 54, 65,
21, 22, 25, 31, 41, 54, 70, 88,
24, 25, 29, 36, 47, 65, 88, 115
};
static const uint8_t sg_au8DefaultScalingListInter[] = {
16, 16, 16, 16, 17, 18, 20, 24,
16, 16, 16, 17, 18, 20, 24, 25,
16, 16, 17, 18, 20, 24, 25, 28,
16, 17, 18, 20, 24, 25, 28, 33,
17, 18, 20, 24, 25, 28, 33, 41,
18, 20, 24, 25, 28, 33, 41, 54,
20, 24, 25, 28, 33, 41, 54, 71,
24, 25, 28, 33, 41, 54, 71, 91
};
const uint8_t g_au8HevcDiagScan4x4X[16] = {
0, 0, 1, 0,
1, 2, 0, 1,
2, 3, 1, 2,
3, 2, 3, 3,
};
const uint8_t g_au8HevcDiagScan4x4Y[16] = {
0, 1, 0, 2,
1, 0, 3, 2,
1, 0, 3, 2,
1, 3, 2, 3,
};
const uint8_t g_au8HevcDiagScan8x8X[64] = {
0, 0, 1, 0,
1, 2, 0, 1,
2, 3, 0, 1,
2, 3, 4, 0,
1, 2, 3, 4,
5, 0, 1, 2,
3, 4, 5, 6,
0, 1, 2, 3,
4, 5, 6, 7,
1, 2, 3, 4,
5, 6, 7, 2,
3, 4, 5, 6,
7, 3, 4, 5,
6, 7, 4, 5,
6, 7, 5, 6,
7, 6, 7, 7,
};
const uint8_t g_au8HevcDiagScan8x8Y[64] = {
0, 1, 0, 2,
1, 0, 3, 2,
1, 0, 4, 3,
2, 1, 0, 5,
4, 3, 2, 1,
0, 6, 5, 4,
3, 2, 1, 0,
7, 6, 5, 4,
3, 2, 1, 0,
7, 6, 5, 4,
3, 2, 1, 7,
6, 5, 4, 3,
2, 7, 6, 5,
4, 3, 7, 6,
5, 4, 7, 6,
5, 7, 6, 7,
};
static const T_AVRational sg_atVuiSar[] = {
{ 0, 1 },
{ 1, 1 },
{ 12, 11 },
{ 10, 11 },
{ 16, 11 },
{ 40, 33 },
{ 24, 11 },
{ 20, 11 },
{ 32, 11 },
{ 80, 33 },
{ 18, 11 },
{ 15, 11 },
{ 64, 33 },
{ 160, 99 },
{ 4, 3 },
{ 3, 2 },
{ 2, 1 },
};
static inline int getBitsLeft(void *pvHandle)
{
int iResLen = 0;
T_GetBitContext *ptPtr = (T_GetBitContext *)pvHandle;
if(ptPtr->iBufSize <= 0 || ptPtr->iTotalBit <= 0)
{
RPT(RPT_WRN, "buffer size is zero");
return 0;
}
iResLen = ptPtr->iTotalBit - ptPtr->iBitPos;
return iResLen;
}
/********************************************
*functions
********************************************/
/**
* @brief Function getOneBit() get next bit
* @param[in] h T_GetBitContext structrue
* @retval other : success, -1 : failure
* @pre
* @post
*/
static int getOneBit(void *pvHandle)
{
T_GetBitContext *ptPtr = (T_GetBitContext *)pvHandle;
int iRet = 0;
uint8_t *pu8CurChar = NULL;
uint8_t u8Shift;
int iResoLen = 0;
if(NULL == ptPtr)
{
RPT(RPT_ERR, "NULL pointer");
iRet = -1;
goto exit;
}
iResoLen = getBitsLeft(ptPtr);
if(iResoLen < 1)
{
iRet = -1;
goto exit;
}
pu8CurChar = ptPtr->pu8Buf + (ptPtr->iBitPos >> 3);
u8Shift = 7 - (ptPtr->iCurBitPos);
ptPtr->iBitPos++;
ptPtr->iCurBitPos = ptPtr->iBitPos & 0x7;
iRet = ((*pu8CurChar) >> u8Shift) & 0x01;
exit:
return iRet;
}
/**
* @brief Function getBits() get next bits
* @param[in] h T_GetBitContext structrue
* @param[in] n how many bits you want?
* @retval other : success, -1 : failure
* @pre
* @post
*/
static int getBits(void *pvHandle, int iN)
{
T_GetBitContext *ptPtr = (T_GetBitContext *)pvHandle;
uint8_t au8Temp[5] = {0};
uint8_t *pu8CurChar = NULL;
uint8_t u8Nbyte;
uint8_t u8Shift;
uint32_t u32Result = 0;
int iRet = 0;
int iResoLen = 0;
if(NULL == ptPtr)
{
RPT(RPT_ERR, "NULL pointer");
iRet = -1;
goto exit;
}
if(iN > MAX_LEN)
{
iN = MAX_LEN;
}
iResoLen = getBitsLeft(ptPtr);
if(iResoLen < iN)
{
iRet = -1;
goto exit;
}
if((ptPtr->iBitPos + iN) > ptPtr->iTotalBit)
{
iN = ptPtr->iTotalBit- ptPtr->iBitPos;
}
pu8CurChar = ptPtr->pu8Buf+ (ptPtr->iBitPos>>3);
u8Nbyte = (ptPtr->iCurBitPos + iN + 7) >> 3;
u8Shift = (8 - (ptPtr->iCurBitPos + iN))& 0x07;
if(iN == MAX_LEN)
{
RPT(RPT_DBG, "12(ptPtr->iBitPos(:%d) + iN(:%d)) > ptPtr->iTotalBit(:%d)!!! ",\
ptPtr->iBitPos, iN, ptPtr->iTotalBit);
RPT(RPT_DBG, "0x%x 0x%x 0x%x 0x%x", (*pu8CurChar), *(pu8CurChar+1),*(pu8CurChar+2),*(pu8CurChar+3));
}
memcpy(&au8Temp[5-u8Nbyte], pu8CurChar, u8Nbyte);
iRet = (uint32_t)au8Temp[0] << 24;
iRet = iRet << 8;
iRet = ((uint32_t)au8Temp[1]<<24)|((uint32_t)au8Temp[2] << 16)\
|((uint32_t)au8Temp[3] << 8)|au8Temp[4];
iRet = (iRet >> u8Shift) & (((uint64_t)1<<iN) - 1);
u32Result = iRet;
ptPtr->iBitPos += iN;
ptPtr->iCurBitPos = ptPtr->iBitPos & 0x7;
exit:
return u32Result;
}
/**
* Show 1-25 bits.
*/
static inline unsigned int showBits(void *pvHandle, int iN)
{
T_GetBitContext *ptPtr = (T_GetBitContext *)pvHandle;
uint8_t au8Temp[5] = {0};
uint8_t *pu8CurChar = NULL;
uint8_t u8Nbyte;
uint8_t u8Shift;
uint32_t u32Result = 0;
int iRet = 0;
int iResoLen = 0;
if(NULL == ptPtr)
{
RPT(RPT_ERR, "NULL pointer");
iRet = -1;
goto exit;
}
if(iN > MAX_LEN)
{
iN = MAX_LEN;
}
iResoLen = getBitsLeft(ptPtr);
if(iResoLen < iN)
{
iRet = -1;
goto exit;
}
if((ptPtr->iBitPos + iN) > ptPtr->iTotalBit)
{
iN = ptPtr->iTotalBit- ptPtr->iBitPos;
}
pu8CurChar = ptPtr->pu8Buf+ (ptPtr->iBitPos>>3);
u8Nbyte = (ptPtr->iCurBitPos + iN + 7) >> 3;
u8Shift = (8 - (ptPtr->iCurBitPos + iN))& 0x07;
if(iN == MAX_LEN)
{
RPT(RPT_DBG, "12(ptPtr->iBitPos(:%d) + iN(:%d)) > ptPtr->iTotalBit(:%d)!!! ",\
ptPtr->iBitPos, iN, ptPtr->iTotalBit);
RPT(RPT_DBG, "0x%x 0x%x 0x%x 0x%x", (*pu8CurChar), *(pu8CurChar+1),*(pu8CurChar+2),*(pu8CurChar+3));
}
memcpy(&au8Temp[5-u8Nbyte], pu8CurChar, u8Nbyte);
iRet = (uint32_t)au8Temp[0] << 24;
iRet = iRet << 8;
iRet = ((uint32_t)au8Temp[1]<<24)|((uint32_t)au8Temp[2] << 16)\
|((uint32_t)au8Temp[3] << 8)|au8Temp[4];
iRet = (iRet >> u8Shift) & (((uint64_t)1<<iN) - 1);
u32Result = iRet;
// ptPtr->iBitPos += iN;
// ptPtr->iCurBitPos = ptPtr->iBitPos & 0x7;
exit:
return u32Result;
}
/**
* Show 0-32 bits.
*/
static inline unsigned int showBitsLong(void *pvHandle, int iN)
{
T_GetBitContext *ptPtr = (T_GetBitContext *)pvHandle;
if (iN <= 32) {
return showBits(ptPtr, iN);
}
return 0;
}
/**
* @brief Function parseCodenum()
* @param[in] buf
* @retval u32CodeNum
* @pre
* @post
*/
static int parseCodenum(void *pvBuf)
{
uint8_t u8LeadingZeroBits = -1;
uint8_t u8B;
uint32_t u32CodeNum = 0;
for(u8B=0; !u8B; u8LeadingZeroBits++)
{
u8B = getOneBit(pvBuf);
}
u32CodeNum = ((uint32_t)1 << u8LeadingZeroBits) - 1 + getBits(pvBuf, u8LeadingZeroBits);
return u32CodeNum;
}
/**
* @brief Function parseUe()
* @param[in] buf sps_pps parse buf
* @retval u32CodeNum
* @pre
* @post
*/
static int parseUe(void *pvBuf)
{
return parseCodenum(pvBuf);
}
/**
* @brief Function parseSe()
* @param[in] buf sps_pps parse buf
* @retval u32CodeNum
* @pre
* @post
*/
static int parseSe(void *pvBuf)
{
int iRet = 0;
int u32CodeNum;
u32CodeNum = parseCodenum(pvBuf);
iRet = (u32CodeNum + 1) >> 1;
iRet = (u32CodeNum & 0x01)? iRet : -iRet;
return iRet;
}
/**
* @brief Function getBitContextFree()
* @param[in] buf T_GetBitContext buf
* @retval none
* @pre
* @post
*/
static void getBitContextFree(void *pvBuf)
{
T_GetBitContext *ptPtr = (T_GetBitContext *)pvBuf;
if(ptPtr)
{
if(ptPtr->pu8Buf)
{
free(ptPtr->pu8Buf);
}
free(ptPtr);
}
}
/**
* @brief Function deEmulationPrevention()
* @param[in] buf T_GetBitContext buf
* @retval none
* @pre
* @post
* @note:
* http://www.cnblogs.com/eustoma/archive/2012/02/13/2415764.html
* 0x000000 >>>>>> 0x00000300
* 0x000001 >>>>>> 0x00000301
* 0x000002 >>>>>> 0x00000302
* 0x000003 >>>>>> 0x00000303
*/
static void *deEmulationPrevention(void *pvBuf)
{
T_GetBitContext *ptPtr = NULL;
T_GetBitContext *ptBufPtr = (T_GetBitContext *)pvBuf;
int i = 0, j = 0;
uint8_t *pu8TmpPtr = NULL;
int tmp_buf_size = 0;
int iVal = 0;
if(NULL == ptBufPtr)
{
RPT(RPT_ERR, "NULL ptPtr");
goto exit;
}
ptPtr = (T_GetBitContext *)malloc(sizeof(T_GetBitContext));
if(NULL == ptPtr)
{
RPT(RPT_ERR, "NULL ptPtr");
goto exit;
}
memcpy(ptPtr, ptBufPtr, sizeof(T_GetBitContext));
ptPtr->pu8Buf = (uint8_t *)malloc(ptPtr->iBufSize);
if(NULL == ptPtr->pu8Buf)
{
RPT(RPT_ERR, "NULL ptPtr");
goto exit;
}
memcpy(ptPtr->pu8Buf, ptBufPtr->pu8Buf, ptBufPtr->iBufSize);
pu8TmpPtr = ptPtr->pu8Buf;
tmp_buf_size = ptPtr->iBufSize;
for(i=0; i<(tmp_buf_size-2); i++)
{
iVal = (pu8TmpPtr[i]^0x00) + (pu8TmpPtr[i+1]^0x00) + (pu8TmpPtr[i+2]^0x03);
if(iVal == 0)
{
for(j=i+2; j<tmp_buf_size-1; j++)
{
pu8TmpPtr[j] = pu8TmpPtr[j+1];
}
ptPtr->iBufSize--;
}
}
ptPtr->iTotalBit = ptPtr->iBufSize << 3;
return (void *)ptPtr;
exit:
getBitContextFree(ptPtr);
return NULL;
}
static void decodeScalingList(void *pvBuf, uint8_t *pu8Factors, int iSize,
const uint8_t *pu8JvtList,
const uint8_t *pu8FallbackList)
{
int i;
int iLast = 8;
int iNext = 8;
const uint8_t *pu8Scan = iSize == 16 ? sg_au8ZigzagScan : g_au8FfZigzagDirect;
if (!getOneBit(pvBuf)) /* matrix not written, we use the predicted one */
memcpy(pu8Factors, pu8FallbackList, iSize * sizeof(uint8_t));
else
for (i = 0; i < iSize; i++)
{
if (iNext)
{
iNext = (iLast + parseSe(pvBuf)) & 0xff;
}
if (!i && !iNext)
{
/* matrix not written, we use the preset one */
memcpy(pu8Factors, pu8JvtList, iSize * sizeof(uint8_t));
break;
}
iLast = pu8Factors[pu8Scan[i]] = iNext ? iNext : iLast;
}
}
int decodeScalingMatrices(void *pvBuf, T_SPS *ptSps,
T_PPS *ptPps, int iIsSps,
uint8_t(*pau8ScalingMatrix4)[16],
uint8_t(*pau8ScalingMatrix8)[64])
{
int iFallbackSps = !iIsSps && ptSps->iScalingMatrixPresent;
const uint8_t *pau8Fallback[4] = {
iFallbackSps ? ptSps->aau8ScalingMatrix4[0] : sg_aau8DefaultScaling4[0],
iFallbackSps ? ptSps->aau8ScalingMatrix4[3] : sg_aau8DefaultScaling4[1],
iFallbackSps ? ptSps->aau8ScalingMatrix8[0] : sg_aau8DefaultScaling8[0],
iFallbackSps ? ptSps->aau8ScalingMatrix8[3] : sg_aau8DefaultScaling8[1]
};
if (getOneBit(pvBuf)) {
ptSps->iScalingMatrixPresent |= iIsSps;
decodeScalingList(pvBuf, pau8ScalingMatrix4[0], 16, sg_aau8DefaultScaling4[0], pau8Fallback[0]); // Intra, Y
decodeScalingList(pvBuf, pau8ScalingMatrix4[1], 16, sg_aau8DefaultScaling4[0], pau8ScalingMatrix4[0]); // Intra, Cr
decodeScalingList(pvBuf, pau8ScalingMatrix4[2], 16, sg_aau8DefaultScaling4[0], pau8ScalingMatrix4[1]); // Intra, Cb
decodeScalingList(pvBuf, pau8ScalingMatrix4[3], 16, sg_aau8DefaultScaling4[1], pau8Fallback[1]); // Inter, Y
decodeScalingList(pvBuf, pau8ScalingMatrix4[4], 16, sg_aau8DefaultScaling4[1], pau8ScalingMatrix4[3]); // Inter, Cr
decodeScalingList(pvBuf, pau8ScalingMatrix4[5], 16, sg_aau8DefaultScaling4[1], pau8ScalingMatrix4[4]); // Inter, Cb
if (iIsSps || ptPps->iTransform8x8Mode)
{
decodeScalingList(pvBuf, pau8ScalingMatrix8[0], 64, sg_aau8DefaultScaling8[0], pau8Fallback[2]); // Intra, Y
decodeScalingList(pvBuf, pau8ScalingMatrix8[3], 64, sg_aau8DefaultScaling8[1], pau8Fallback[3]); // Inter, Y
if (ptSps->iChromaFormatIdc == 3) {
decodeScalingList(pvBuf, pau8ScalingMatrix8[1], 64, sg_aau8DefaultScaling8[0], pau8ScalingMatrix8[0]); // Intra, Cr
decodeScalingList(pvBuf, pau8ScalingMatrix8[4], 64, sg_aau8DefaultScaling8[1], pau8ScalingMatrix8[3]); // Inter, Cr
decodeScalingList(pvBuf, pau8ScalingMatrix8[2], 64, sg_aau8DefaultScaling8[0], pau8ScalingMatrix8[1]); // Intra, Cb
decodeScalingList(pvBuf, pau8ScalingMatrix8[5], 64, sg_aau8DefaultScaling8[1], pau8ScalingMatrix8[4]); // Inter, Cb
}
}
}
return 0;
}
static int decodeHrdPAarameters(void *pvBuf, T_SPS *ptSps)
{
int iCpbCount = 0;
int i;
iCpbCount = parseUe(pvBuf);
if (iCpbCount > 32U)
{
RPT(RPT_ERR,"iCpbCount %d invalid\n", iCpbCount);
return -1;
}
getBits(pvBuf, 4); /* bit_rate_scale */
getBits(pvBuf, 4); /* cpb_size_scale */
for (i = 0; i < iCpbCount; i++)
{
parseUe(pvBuf);
parseUe(pvBuf);
//get_ue_golomb_long(&h->gb); /* bit_rate_value_minus1 */
//get_ue_golomb_long(&h->gb); /* cpb_size_value_minus1 */
getOneBit(pvBuf); /* cbr_flag */
}
ptSps->iInitialCpbRemovalDelayLength = getBits(pvBuf, 5) + 1;
ptSps->iCpbRemovalDelayLength = getBits(pvBuf, 5) + 1;
ptSps->iDpbOutputDelayLength = getBits(pvBuf, 5) + 1;
ptSps->iTimeOffsetLength = getBits(pvBuf, 5);
ptSps->iCpbCnt = iCpbCount;
return 0;
}
static inline int decodeVuiParameters(void *pvBuf, T_SPS *ptSps)
{
int iAspectRatioInfoPresentFlag;
unsigned int uiAspectRatioIdc;
iAspectRatioInfoPresentFlag = getOneBit(pvBuf);
if (iAspectRatioInfoPresentFlag) {
uiAspectRatioIdc = getBits(pvBuf, 8);
if (uiAspectRatioIdc == EXTENDED_SAR) {
ptSps->tSar.num = getBits(pvBuf, 16);
ptSps->tSar.den = getBits(pvBuf, 16);
} else if (uiAspectRatioIdc < FF_ARRAY_ELEMS(sg_atFfH264PixelSspect)) {
ptSps->tSar = sg_atFfH264PixelSspect[uiAspectRatioIdc];
} else
{
RPT(RPT_ERR,"illegal aspect ratio\n");
return -1;
}
} else
{
ptSps->tSar.num =
ptSps->tSar.den = 0;
}
if (getOneBit(pvBuf)) /* iOverscanInfoPresentFlag */
getOneBit(pvBuf); /* iOverscanAppropriateFlag */
ptSps->iVideoSignalTypePresentFlag = getOneBit(pvBuf);
if (ptSps->iVideoSignalTypePresentFlag) {
getBits(pvBuf, 3); /* video_format */
ptSps->iFullRange = getOneBit(pvBuf); /* iVideoFullRangeFlag */
ptSps->iColourDescriptionPresentFlag = getOneBit(pvBuf);
if (ptSps->iColourDescriptionPresentFlag) {
ptSps->tColorPrimaries = getBits(pvBuf, 8); /* u8ColourPrimaries */
ptSps->tColorTrc = getBits(pvBuf, 8); /* transfer_characteristics */
ptSps->tColorspace = getBits(pvBuf, 8); /* matrix_coefficients */
if (ptSps->tColorPrimaries >= AVCOL_PRI_NB)
ptSps->tColorPrimaries = AVCOL_PRI_UNSPECIFIED;
if (ptSps->tColorTrc >= AVCOL_TRC_NB)
ptSps->tColorTrc = AVCOL_TRC_UNSPECIFIED;
if (ptSps->tColorspace >= AVCOL_SPC_NB)
ptSps->tColorspace = AVCOL_SPC_UNSPECIFIED;
}
}
/* chroma_location_info_present_flag */
if (getOneBit(pvBuf))
{
parseUe(pvBuf); /* chroma_sample_location_type_top_field */
parseUe(pvBuf); /* chroma_sample_location_type_bottom_field */
}
if(getBitsLeft(pvBuf) < 10)
{
return 0;
}
ptSps->iTimingInfoPresentFlag = getOneBit(pvBuf);
if (ptSps->iTimingInfoPresentFlag) {
unsigned u32NumUnitsInTick = getBits(pvBuf, 32);
unsigned u32TimeScale = getBits(pvBuf, 32);
if (!u32NumUnitsInTick || !u32TimeScale) {
RPT(RPT_ERR,"u32TimeScale/u32NumUnitsInTick invalid or unsupported (%u/%u)\n",u32TimeScale, u32NumUnitsInTick);
ptSps->iTimingInfoPresentFlag = 0;
} else {
ptSps->u32NumUnitsInTick = u32NumUnitsInTick;
ptSps->u32TimeScale = u32TimeScale;
}
ptSps->iFixedFrameRateFlag = getOneBit(pvBuf);
}
ptSps->iNalHrdParametersPresentFlag = getOneBit(pvBuf);
if (ptSps->iNalHrdParametersPresentFlag)
if (decodeHrdPAarameters(pvBuf, ptSps) < 0)
return -1;
ptSps->iVclHrdParametersPresentFlag = getOneBit(pvBuf);
if (ptSps->iVclHrdParametersPresentFlag)
if (decodeHrdPAarameters(pvBuf, ptSps) < 0)
return -1;
if (ptSps->iNalHrdParametersPresentFlag ||
ptSps->iVclHrdParametersPresentFlag)
getOneBit(pvBuf); /* low_delay_hrd_flag */
ptSps->iPicStructPresentFlag = getOneBit(pvBuf);
if(getBitsLeft(pvBuf) == 0)
return 0;
ptSps->iBitstreamRestrictionFlag = getOneBit(pvBuf);
if (ptSps->iBitstreamRestrictionFlag) {
getOneBit(pvBuf); /* motion_vectors_over_pic_boundaries_flag */
parseUe(pvBuf);
//get_ue_golomb(&h->gb); /* max_bytes_per_pic_denom */
parseUe(pvBuf);
//get_ue_golomb(&h->gb); /* max_bits_per_mb_denom */
parseUe(pvBuf);
//get_ue_golomb(&h->gb); /* log2_max_mv_length_horizontal */
parseUe(pvBuf);
//get_ue_golomb(&h->gb); /* log2_max_mv_length_vertical */
ptSps->iNumReorderFrames = parseUe(pvBuf);
parseUe(pvBuf);
//get_ue_golomb(&h->gb); /*max_dec_frame_buffering*/
if (getBitsLeft(pvBuf) < 0)
{
ptSps->iNumReorderFrames = 0;
ptSps->iBitstreamRestrictionFlag = 0;
}
if (ptSps->iNumReorderFrames > 16U
/* max_dec_frame_buffering || max_dec_frame_buffering > 16 */)
{
RPT(RPT_DBG, "Clipping illegal iNumReorderFrames %d\n",
ptSps->iNumReorderFrames);
ptSps->iNumReorderFrames = 16;
return -1;
}
}
return 0;
}
int h264DecSeqParameterSet(void *pvBufSrc, T_SPS *ptSps)
{
int iLevelIdc;
int iConstraintSetFlags = 0;
unsigned int uiSpsId;
int i;
int iLog2MaxFrameNumMinus4;
int iRet = 0;
int iProfileIdc = 0;
void *pvBuf = NULL;
if(NULL == pvBufSrc || NULL == ptSps)
{
RPT(RPT_ERR,"ERR null pointer\n");
iRet = -1;
goto exit;
}
memset((void *)ptSps, 0, sizeof(T_SPS));
pvBuf = deEmulationPrevention(pvBufSrc);
if(NULL == pvBuf)
{
RPT(RPT_ERR,"ERR null pointer\n");
iRet = -1;
goto exit;
}
iProfileIdc = getBits(pvBuf, 8);
iConstraintSetFlags |= getOneBit(pvBuf) << 0; // constraint_set0_flag
iConstraintSetFlags |= getOneBit(pvBuf) << 1; // constraint_set1_flag
iConstraintSetFlags |= getOneBit(pvBuf) << 2; // constraint_set2_flag
iConstraintSetFlags |= getOneBit(pvBuf) << 3; // constraint_set3_flag
iConstraintSetFlags |= getOneBit(pvBuf) << 4; // constraint_set4_flag
iConstraintSetFlags |= getOneBit(pvBuf) << 5; // constraint_set5_flag
getBits(pvBuf, 2); // reserved_zero_2bits
iLevelIdc = getBits(pvBuf, 8);
uiSpsId = parseUe(pvBuf);
if (uiSpsId >= MAX_SPS_COUNT) {
RPT(RPT_ERR, "uiSpsId %u out of range\n", uiSpsId);
iRet = -1;
goto exit;
}
ptSps->uiSpsId = uiSpsId;
ptSps->iTimeOffsetLength = 24;
ptSps->iProfileIdc = iProfileIdc;
ptSps->iConstraintSetFlags = iConstraintSetFlags;
ptSps->iLevelIdc = iLevelIdc;
ptSps->iFullRange = -1;
memset(ptSps->aau8ScalingMatrix4, 16, sizeof(ptSps->aau8ScalingMatrix4));
memset(ptSps->aau8ScalingMatrix8, 16, sizeof(ptSps->aau8ScalingMatrix8));
ptSps->iScalingMatrixPresent = 0;
ptSps->tColorspace = 2; //AVCOL_SPC_UNSPECIFIED
if (ptSps->iProfileIdc == 100 || // High profile
ptSps->iProfileIdc == 110 || // High10 profile
ptSps->iProfileIdc == 122 || // High422 profile
ptSps->iProfileIdc == 244 || // High444 Predictive profile
ptSps->iProfileIdc == 44 || // Cavlc444 profile
ptSps->iProfileIdc == 83 || // Scalable Constrained High profile (SVC)
ptSps->iProfileIdc == 86 || // Scalable High Intra profile (SVC)
ptSps->iProfileIdc == 118 || // Stereo High profile (MVC)
ptSps->iProfileIdc == 128 || // Multiview High profile (MVC)
ptSps->iProfileIdc == 138 || // Multiview Depth High profile (MVCD)
ptSps->iProfileIdc == 144) { // old High444 profile
ptSps->iChromaFormatIdc = parseUe(pvBuf);
if (ptSps->iChromaFormatIdc > 3U)
{
RPT(RPT_ERR, "iChromaFormatIdc %u",ptSps->iChromaFormatIdc);
iRet = -1;
goto exit;
}
else if (ptSps->iChromaFormatIdc == 3)
{
ptSps->iResidualColorTransformFlag = getOneBit(pvBuf);
if (ptSps->iResidualColorTransformFlag)
{
RPT(RPT_ERR, "separate color planes are not supported\n");
iRet = -1;
goto exit;
}
}
ptSps->iBitDepthLuma = parseUe(pvBuf) + 8;
ptSps->iBitDepthChroma = parseUe(pvBuf) + 8;
if (ptSps->iBitDepthChroma != ptSps->iBitDepthLuma)
{
RPT(RPT_ERR, "Different chroma and luma bit depth");
iRet = -1;
goto exit;
}
if (ptSps->iBitDepthLuma < 8 || ptSps->iBitDepthLuma > 14 ||
ptSps->iBitDepthChroma < 8 || ptSps->iBitDepthChroma > 14)
{
RPT(RPT_ERR, "illegal bit depth value (%d, %d)\n",ptSps->iBitDepthLuma, ptSps->iBitDepthChroma);
iRet = -1;
goto exit;
}
ptSps->iTransformBypass = getOneBit(pvBuf);
decodeScalingMatrices(pvBuf, ptSps, NULL, 1,
ptSps->aau8ScalingMatrix4, ptSps->aau8ScalingMatrix8);
}
else
{
ptSps->iChromaFormatIdc = 1;
ptSps->iBitDepthLuma = 8;
ptSps->iBitDepthChroma = 8;
}
iLog2MaxFrameNumMinus4 = parseUe(pvBuf);
if (iLog2MaxFrameNumMinus4 < MIN_LOG2_MAX_FRAME_NUM - 4 ||
iLog2MaxFrameNumMinus4 > MAX_LOG2_MAX_FRAME_NUM - 4)
{
RPT(RPT_ERR, "iLog2MaxFrameNumMinus4 out of range (0-12): %d\n", iLog2MaxFrameNumMinus4);
iRet = -1;
goto exit;
}
ptSps->iLog2MaxFrameNum = iLog2MaxFrameNumMinus4 + 4;
ptSps->iPocType = parseUe(pvBuf);
if (ptSps->iPocType == 0)
{
// FIXME #define
unsigned t = parseUe(pvBuf);
if (t>12)
{
RPT(RPT_ERR, "iLog2MaxPocLsb (%d) is out of range\n", t);
iRet = -1;
goto exit;
}
ptSps->iLog2MaxPocLsb = t + 4;
}
else if (ptSps->iPocType == 1)
{
// FIXME #define
ptSps->iDeltaPicOrderAlwaysZeroFlag = getOneBit(pvBuf);
ptSps->iOffsetForNonRefPic = parseSe(pvBuf);
ptSps->iOffsetForTopToBottomField = parseSe(pvBuf);
ptSps->iPocCycleLength = parseUe(pvBuf);
if ((unsigned)ptSps->iPocCycleLength >= FF_ARRAY_ELEMS(ptSps->asOffsetForRefFrame))
{
RPT(RPT_ERR, "iPocCycleLength overflow %d\n", ptSps->iPocCycleLength);
iRet = -1;
goto exit;
}
for (i = 0; i < ptSps->iPocCycleLength; i++)
ptSps->asOffsetForRefFrame[i] = parseSe(pvBuf);
}
else if (ptSps->iPocType != 2)
{
RPT(RPT_ERR, "illegal POC type %d\n", ptSps->iPocType);
iRet = -1;
goto exit;
}
ptSps->iRefFrameCount = parseUe(pvBuf);
if (ptSps->iRefFrameCount > H264_MAX_PICTURE_COUNT - 2 ||
ptSps->iRefFrameCount > 16U)
{
RPT(RPT_ERR, "too many reference frames %d\n", ptSps->iRefFrameCount);
iRet = -1;
goto exit;
}
ptSps->iGapsInFrameNumAllowedFlag = getOneBit(pvBuf);
ptSps->iMbWidth = parseUe(pvBuf) + 1;
ptSps->iMbHeight = parseUe(pvBuf) + 1;
ptSps->iFrameMbsOnlyFlag = getOneBit(pvBuf);
if (!ptSps->iFrameMbsOnlyFlag)
ptSps->iMbAff = getOneBit(pvBuf);
else
ptSps->iMbAff = 0;
ptSps->iDirect8x8InferenceFlag = getOneBit(pvBuf);
ptSps->iCrop = getOneBit(pvBuf);
if (ptSps->iCrop) {
unsigned int uiCropLeft = parseUe(pvBuf);
unsigned int uiCropRight = parseUe(pvBuf);
unsigned int uiCropTop = parseUe(pvBuf);
unsigned int uiCropBottom = parseUe(pvBuf);
int iWidth = 16 * ptSps->iMbWidth;
int iHeight = 16 * ptSps->iMbHeight * (2 - ptSps->iFrameMbsOnlyFlag);
if(1)
{
int vsub = (ptSps->iChromaFormatIdc == 1) ? 1 : 0;
int hsub = (ptSps->iChromaFormatIdc == 1 ||
ptSps->iChromaFormatIdc == 2) ? 1 : 0;
int step_x = 1 << hsub;
int step_y = (2 - ptSps->iFrameMbsOnlyFlag) << vsub;
if (uiCropLeft & (0x1F >> (ptSps->iBitDepthLuma > 8)))
{
uiCropLeft &= ~(0x1F >> (ptSps->iBitDepthLuma > 8));
}
if (uiCropLeft > (unsigned)INT_MAX / 4 / step_x ||
uiCropRight > (unsigned)INT_MAX / 4 / step_x ||
uiCropTop > (unsigned)INT_MAX / 4 / step_y ||
uiCropBottom> (unsigned)INT_MAX / 4 / step_y ||
(uiCropLeft + uiCropRight ) * step_x >= iWidth ||
(uiCropTop + uiCropBottom) * step_y >= iHeight
)
{
RPT(RPT_ERR, "crop values invalid %d %d %d %d / %d %d\n", uiCropLeft, uiCropRight, uiCropTop, uiCropBottom, iWidth, iHeight);
iRet = -1;
goto exit;
}
ptSps->uiCropLeft = uiCropLeft * step_x;
ptSps->uiCropRight = uiCropRight * step_x;
ptSps->uiCropTop = uiCropTop * step_y;
ptSps->uiCropBottom = uiCropBottom * step_y;
}
}
else
{
ptSps->uiCropLeft =
ptSps->uiCropRight =
ptSps->uiCropTop =
ptSps->uiCropBottom =
ptSps->iCrop = 0;
}
ptSps->iVuiParametersPresentFlag = getOneBit(pvBuf);
if (ptSps->iVuiParametersPresentFlag) {
int ret = decodeVuiParameters(pvBuf, ptSps);
if (ret < 0)
goto exit;
}
if (getBitsLeft(pvBuf) < 0)
{
RPT(RPT_ERR, "Overread %s by %d bits\n", ptSps->iVuiParametersPresentFlag ? "VUI" : "SPS", -getBitsLeft(pvBuf));
iRet = -1;
}
if (!ptSps->tSar.den)
ptSps->tSar.den = 1;
ptSps->iNew = 1;
exit:
#ifdef SPS_PPS_DEBUG
if (1)
{
static const char csp[4][5] = { "Gray", "420", "422", "444" };
RPT(RPT_DBG,
"ptSps:%u profile:%d/%d poc:%d ref:%d %dx%d %s %s crop:%u/%u/%u/%u %s %s %d/%d b%d reo:%d\n",
uiSpsId, ptSps->iProfileIdc, ptSps->iLevelIdc,
ptSps->iPocType,
ptSps->iRefFrameCount,
ptSps->iMbWidth, ptSps->iMbHeight,
ptSps->iFrameMbsOnlyFlag ? "FRM" : (ptSps->iMbAff ? "MB-AFF" : "PIC-AFF"),
ptSps->iDirect8x8InferenceFlag ? "8B8" : "",
ptSps->uiCropLeft, ptSps->uiCropRight,
ptSps->uiCropTop, ptSps->uiCropBottom,
ptSps->iVuiParametersPresentFlag ? "VUI" : "",
csp[ptSps->iChromaFormatIdc],
ptSps->iTimingInfoPresentFlag ? ptSps->u32NumUnitsInTick : 0,
ptSps->iTimingInfoPresentFlag ? ptSps->u32TimeScale : 0,
ptSps->iBitDepthLuma,
ptSps->iBitstreamRestrictionFlag ? ptSps->iNumReorderFrames : -1
);
}
#endif
getBitContextFree(pvBuf);
return iRet;
}
static int decodeProfileTierLevel(T_GetBitContext *pvBuf, T_PTLCommon *tPtl)
{
int i;
if (getBitsLeft(pvBuf) < 2+1+5 + 32 + 4 + 16 + 16 + 12)
return -1;
tPtl->u8ProfileSpace = getBits(pvBuf, 2);
tPtl->u8TierFlag = getOneBit(pvBuf);
tPtl->u8ProfileIdc = getBits(pvBuf, 5);
if (tPtl->u8ProfileIdc == T_PROFILE_HEVC_MAIN)
RPT(RPT_DBG, "Main profile bitstream\n");
else if (tPtl->u8ProfileIdc == T_PROFILE_HEVC_MAIN_10)
RPT(RPT_DBG, "Main 10 profile bitstream\n");
else if (tPtl->u8ProfileIdc == T_PROFILE_HEVC_MAIN_STILL_PICTURE)
RPT(RPT_DBG, "Main Still Picture profile bitstream\n");
else if (tPtl->u8ProfileIdc == T_PROFILE_HEVC_REXT)
RPT(RPT_DBG, "Range Extension profile bitstream\n");
else
RPT(RPT_WRN, "Unknown HEVC profile: %d\n", tPtl->u8ProfileIdc);
for (i = 0; i < 32; i++) {
tPtl->au8ProfileCompatibilityFlag[i] = getOneBit(pvBuf);
if (tPtl->u8ProfileIdc == 0 && i > 0 && tPtl->au8ProfileCompatibilityFlag[i])
tPtl->u8ProfileIdc = i;
}
tPtl->u8ProgressiveSourceFlag = getOneBit(pvBuf);
tPtl->u8InterlacedSourceFlag = getOneBit(pvBuf);
tPtl->u8NonPackedConstraintFlag = getOneBit(pvBuf);
tPtl->u8FrameOnlyConstraintFlag = getOneBit(pvBuf);
getBits(pvBuf, 16); // XXX_reserved_zero_44bits[0..15]
getBits(pvBuf, 16); // XXX_reserved_zero_44bits[16..31]
getBits(pvBuf, 12); // XXX_reserved_zero_44bits[32..43]
return 0;
}
static int parsePtl(T_GetBitContext *pvBuf, T_PTL *tPtl, int max_num_sub_layers)
{
int i;
if (decodeProfileTierLevel(pvBuf, &tPtl->tGeneralPtl) < 0 ||
getBitsLeft(pvBuf) < 8 + (8*2 * (max_num_sub_layers - 1 > 0))) {
RPT(RPT_ERR, "PTL information too short\n");
return -1;
}
tPtl->tGeneralPtl.u8LevelIdc = getBits(pvBuf, 8);
for (i = 0; i < max_num_sub_layers - 1; i++) {
tPtl->au8SubLayerProfilePresentFlag[i] = getOneBit(pvBuf);
tPtl->au8SubLayerLevelPresentFlag[i] = getOneBit(pvBuf);
}
if (max_num_sub_layers - 1> 0)
for (i = max_num_sub_layers - 1; i < 8; i++)
getBits(pvBuf, 2); // reserved_zero_2bits[i]
for (i = 0; i < max_num_sub_layers - 1; i++) {
if (tPtl->au8SubLayerProfilePresentFlag[i] &&
decodeProfileTierLevel(pvBuf, &tPtl->atSubLayerPtl[i]) < 0) {
RPT(RPT_ERR,
"PTL information for sublayer %i too short\n", i);
return -1;
}
if (tPtl->au8SubLayerLevelPresentFlag[i]) {
if (getBitsLeft(pvBuf) < 8) {
RPT(RPT_ERR,
"Not enough data for sublayer %i level_idc\n", i);
return -1;
} else
tPtl->atSubLayerPtl[i].u8LevelIdc = getBits(pvBuf, 8);
}
}
return 0;
}
static void setDefaultScalingListData(T_ScalingList *sl)
{
int matrixId;
for (matrixId = 0; matrixId < 6; matrixId++) {
// 4x4 default is 16
memset(sl->aaau8Sl[0][matrixId], 16, 16);
sl->aau8SlDc[0][matrixId] = 16; // default for 16x16
sl->aau8SlDc[1][matrixId] = 16; // default for 32x32
}
memcpy(sl->aaau8Sl[1][0], sg_au8DefaultScalingListIntra, 64);
memcpy(sl->aaau8Sl[1][1], sg_au8DefaultScalingListIntra, 64);
memcpy(sl->aaau8Sl[1][2], sg_au8DefaultScalingListIntra, 64);
memcpy(sl->aaau8Sl[1][3], sg_au8DefaultScalingListInter, 64);
memcpy(sl->aaau8Sl[1][4], sg_au8DefaultScalingListInter, 64);
memcpy(sl->aaau8Sl[1][5], sg_au8DefaultScalingListInter, 64);
memcpy(sl->aaau8Sl[2][0], sg_au8DefaultScalingListIntra, 64);
memcpy(sl->aaau8Sl[2][1], sg_au8DefaultScalingListIntra, 64);
memcpy(sl->aaau8Sl[2][2], sg_au8DefaultScalingListIntra, 64);
memcpy(sl->aaau8Sl[2][3], sg_au8DefaultScalingListInter, 64);
memcpy(sl->aaau8Sl[2][4], sg_au8DefaultScalingListInter, 64);
memcpy(sl->aaau8Sl[2][5], sg_au8DefaultScalingListInter, 64);
memcpy(sl->aaau8Sl[3][0], sg_au8DefaultScalingListIntra, 64);
memcpy(sl->aaau8Sl[3][1], sg_au8DefaultScalingListIntra, 64);
memcpy(sl->aaau8Sl[3][2], sg_au8DefaultScalingListIntra, 64);
memcpy(sl->aaau8Sl[3][3], sg_au8DefaultScalingListInter, 64);
memcpy(sl->aaau8Sl[3][4], sg_au8DefaultScalingListInter, 64);
memcpy(sl->aaau8Sl[3][5], sg_au8DefaultScalingListInter, 64);
}
static int scalingListData(T_GetBitContext *pvBuf, T_ScalingList *sl, T_HEVCSPS *ptSps)
{
uint8_t scaling_list_pred_mode_flag;
int32_t scaling_list_dc_coef[2][6];
int size_id, matrix_id, pos;
int i;
for (size_id = 0; size_id < 4; size_id++)
for (matrix_id = 0; matrix_id < 6; matrix_id += ((size_id == 3) ? 3 : 1)) {
scaling_list_pred_mode_flag = getOneBit(pvBuf);
if (!scaling_list_pred_mode_flag) {
unsigned int delta = parseUe(pvBuf);
/* Only need to handle non-zero delta. Zero means default,
* which should already be in the arrays. */
if (delta) {
// Copy from previous array.
delta *= (size_id == 3) ? 3 : 1;
if (matrix_id < delta) {
RPT(RPT_ERR,
"Invalid delta in scaling list data: %d.\n", delta);
return -1;
}
memcpy(sl->aaau8Sl[size_id][matrix_id],
sl->aaau8Sl[size_id][matrix_id - delta],
size_id > 0 ? 64 : 16);
if (size_id > 1)
sl->aau8SlDc[size_id - 2][matrix_id] = sl->aau8SlDc[size_id - 2][matrix_id - delta];
}
} else {
int next_coef, coef_num;
int32_t scaling_list_delta_coef;
next_coef = 8;
coef_num = FFMIN(64, 1 << (4 + (size_id << 1)));
if (size_id > 1) {
scaling_list_dc_coef[size_id - 2][matrix_id] = parseSe(pvBuf) + 8;
next_coef = scaling_list_dc_coef[size_id - 2][matrix_id];
sl->aau8SlDc[size_id - 2][matrix_id] = next_coef;
}
for (i = 0; i < coef_num; i++) {
if (size_id == 0)
pos = 4 * g_au8HevcDiagScan4x4Y[i] +
g_au8HevcDiagScan4x4X[i];
else
pos = 8 * g_au8HevcDiagScan8x8Y[i] +
g_au8HevcDiagScan8x8X[i];
scaling_list_delta_coef = parseSe(pvBuf);
next_coef = (next_coef + 256U + scaling_list_delta_coef) % 256;
sl->aaau8Sl[size_id][matrix_id][pos] = next_coef;
}
}
}
if (ptSps->iChromaFormatIdc == 3) {
for (i = 0; i < 64; i++) {
sl->aaau8Sl[3][1][i] = sl->aaau8Sl[2][1][i];
sl->aaau8Sl[3][2][i] = sl->aaau8Sl[2][2][i];
sl->aaau8Sl[3][4][i] = sl->aaau8Sl[2][4][i];
sl->aaau8Sl[3][5][i] = sl->aaau8Sl[2][5][i];
}
sl->aau8SlDc[1][1] = sl->aau8SlDc[0][1];
sl->aau8SlDc[1][2] = sl->aau8SlDc[0][2];
sl->aau8SlDc[1][4] = sl->aau8SlDc[0][4];
sl->aau8SlDc[1][5] = sl->aau8SlDc[0][5];
}
return 0;
}
int hevcDecodeShortTermRps(T_GetBitContext *pvBuf,
T_ShortTermRPS *rps, const T_HEVCSPS *ptSps, int is_slice_header)
{
uint8_t rps_predict = 0;
int au32DeltaPoc;
int k0 = 0;
int k1 = 0;
int k = 0;
int i;
if (rps != ptSps->atStRps && ptSps->uiNbStRps)
rps_predict = getOneBit(pvBuf);
if (rps_predict) {
const T_ShortTermRPS *ptRpsRidx;
int iDeltaRps;
unsigned int uiAbsDeltaRps;
uint8_t u8UseDeltaFlag = 0;
uint8_t u8DeltaRpsSign = 0;
if (is_slice_header) {
unsigned int uiDeltaIdx = parseUe(pvBuf) + 1;
if (u8DeltaRpsSign > ptSps->uiNbStRps) {
RPT(RPT_ERR,
"Invalid value of delta_idx in slice header RPS: %d > %d.\n",
u8DeltaRpsSign, ptSps->uiNbStRps);
return -1;
}
ptRpsRidx = &ptSps->atStRps[ptSps->uiNbStRps - u8DeltaRpsSign];
rps->iRpsIdxNumDeltaPocs = ptRpsRidx->iNumDeltaPocs;
} else
ptRpsRidx = &ptSps->atStRps[rps - ptSps->atStRps - 1];
u8DeltaRpsSign = getOneBit(pvBuf);
uiAbsDeltaRps = parseUe(pvBuf) + 1;
if (uiAbsDeltaRps < 1 || uiAbsDeltaRps > 32768) {
RPT(RPT_ERR,
"Invalid value of uiAbsDeltaRps: %d\n",
uiAbsDeltaRps);
return -1;
}
iDeltaRps = (1 - (u8DeltaRpsSign << 1)) * uiAbsDeltaRps;
for (i = 0; i <= ptRpsRidx->iNumDeltaPocs; i++) {
int used = rps->au8Used[k] = getOneBit(pvBuf);
if (!used)
u8UseDeltaFlag = getOneBit(pvBuf);
if (used || u8UseDeltaFlag) {
if (i < ptRpsRidx->iNumDeltaPocs)
au32DeltaPoc = iDeltaRps + ptRpsRidx->au32DeltaPoc[i];
else
au32DeltaPoc = iDeltaRps;
rps->au32DeltaPoc[k] = au32DeltaPoc;
if (au32DeltaPoc < 0)
k0++;
else
k1++;
k++;
}
}
if (k >= FF_ARRAY_ELEMS(rps->au8Used)) {
RPT(RPT_ERR,
"Invalid iNumDeltaPocs: %d\n", k);
return -1;
}
rps->iNumDeltaPocs = k;
rps->uiNumNegativePics = k0;
// sort in increasing order (smallest first)
if (rps->iNumDeltaPocs != 0) {
int used, tmp;
for (i = 1; i < rps->iNumDeltaPocs; i++) {
au32DeltaPoc = rps->au32DeltaPoc[i];
used = rps->au8Used[i];
for (k = i - 1; k >= 0; k--) {
tmp = rps->au32DeltaPoc[k];
if (au32DeltaPoc < tmp) {
rps->au32DeltaPoc[k + 1] = tmp;
rps->au8Used[k + 1] = rps->au8Used[k];
rps->au32DeltaPoc[k] = au32DeltaPoc;
rps->au8Used[k] = used;
}
}
}
}
if ((rps->uiNumNegativePics >> 1) != 0) {
int used;
k = rps->uiNumNegativePics - 1;
// flip the negative values to largest first
for (i = 0; i < rps->uiNumNegativePics >> 1; i++) {
au32DeltaPoc = rps->au32DeltaPoc[i];
used = rps->au8Used[i];
rps->au32DeltaPoc[i] = rps->au32DeltaPoc[k];
rps->au8Used[i] = rps->au8Used[k];
rps->au32DeltaPoc[k] = au32DeltaPoc;
rps->au8Used[k] = used;
k--;
}
}
} else {
unsigned int uiPrev, uiNbPositivePics;
rps->uiNumNegativePics = parseUe(pvBuf);
uiNbPositivePics = parseUe(pvBuf);
if (rps->uiNumNegativePics >= HEVC_MAX_REFS ||
uiNbPositivePics >= HEVC_MAX_REFS) {
RPT(RPT_ERR, "Too many refs in a short term RPS.\n");
return -1;
}
rps->iNumDeltaPocs = rps->uiNumNegativePics + uiNbPositivePics;
if (rps->iNumDeltaPocs) {
uiPrev = 0;
for (i = 0; i < rps->uiNumNegativePics; i++) {
au32DeltaPoc = parseUe(pvBuf) + 1;
if (au32DeltaPoc < 1 || au32DeltaPoc > 32768) {
RPT(RPT_ERR,
"Invalid value of au32DeltaPoc: %d\n",
au32DeltaPoc);
return -1;
}
uiPrev -= au32DeltaPoc;
rps->au32DeltaPoc[i] = uiPrev;
rps->au8Used[i] = getOneBit(pvBuf);
}
uiPrev = 0;
for (i = 0; i < uiNbPositivePics; i++) {
au32DeltaPoc = parseUe(pvBuf) + 1;
if (au32DeltaPoc < 1 || au32DeltaPoc > 32768) {
RPT(RPT_ERR,
"Invalid value of au32DeltaPoc: %d\n",
au32DeltaPoc);
return -1;
}
uiPrev += au32DeltaPoc;
rps->au32DeltaPoc[rps->uiNumNegativePics + i] = uiPrev;
rps->au8Used[rps->uiNumNegativePics + i] = getOneBit(pvBuf);
}
}
}
return 0;
}
static void decodeSublayerHrd(T_GetBitContext *pvBuf, unsigned int nb_cpb,
int iSubpicParamsPresent)
{
int i;
for (i = 0; i < nb_cpb; i++) {
parseUe(pvBuf); // bit_rate_value_minus1
parseUe(pvBuf); // cpb_size_value_minus1
if (iSubpicParamsPresent) {
parseUe(pvBuf); // cpb_size_du_value_minus1
parseUe(pvBuf); // bit_rate_du_value_minus1
}
getOneBit(pvBuf); // cbr_flag
}
}
static int decodeHrd(T_GetBitContext *pvBuf, int common_inf_present,
int max_sublayers)
{
int iNalParamsPresent = 0, iVclParamsPresent = 0;
int iSubpicParamsPresent = 0;
int i;
if (common_inf_present) {
iNalParamsPresent = getOneBit(pvBuf);
iVclParamsPresent = getOneBit(pvBuf);
if (iNalParamsPresent || iVclParamsPresent) {
iSubpicParamsPresent = getOneBit(pvBuf);
if (iSubpicParamsPresent) {
getBits(pvBuf, 8); // tick_divisor_minus2
getBits(pvBuf, 5); // du_cpb_removal_delay_increment_length_minus1
getBits(pvBuf, 1); // sub_pic_cpb_params_in_pic_timing_sei_flag
getBits(pvBuf, 5); // dpb_output_delay_du_length_minus1
}
getBits(pvBuf, 4); // bit_rate_scale
getBits(pvBuf, 4); // cpb_size_scale
if (iSubpicParamsPresent)
getBits(pvBuf, 4); // cpb_size_du_scale
getBits(pvBuf, 5); // initial_cpb_removal_delay_length_minus1
getBits(pvBuf, 5); // au_cpb_removal_delay_length_minus1
getBits(pvBuf, 5); // dpb_output_delay_length_minus1
}
}
for (i = 0; i < max_sublayers; i++) {
int low_delay = 0;
unsigned int nb_cpb = 1;
int iFixedRate = getOneBit(pvBuf);
if (!iFixedRate)
iFixedRate = getOneBit(pvBuf);
if (iFixedRate)
parseUe(pvBuf); // elemental_duration_in_tc_minus1
else
low_delay = getOneBit(pvBuf);
if (!low_delay) {
nb_cpb = parseUe(pvBuf) + 1;
if (nb_cpb < 1 || nb_cpb > 32) {
RPT(RPT_ERR, "nb_cpb %d invalid\n", nb_cpb);
return -1;
}
}
if (iNalParamsPresent)
decodeSublayerHrd(pvBuf, nb_cpb, iSubpicParamsPresent);
if (iVclParamsPresent)
decodeSublayerHrd(pvBuf, nb_cpb, iSubpicParamsPresent);
}
return 0;
}
static void decodeVui(T_GetBitContext *pvBuf, T_HEVCSPS *ptSps)
{
T_VUI tBackupVui, *tVui = &ptSps->tVui;
T_GetBitContext tBackup;
int sar_present, alt = 0;
RPT(RPT_DBG, "Decoding VUI\n");
sar_present = getOneBit(pvBuf);
if (sar_present) {
uint8_t sar_idx = getBits(pvBuf, 8);
if (sar_idx < FF_ARRAY_ELEMS(sg_atVuiSar))
tVui->tSar = sg_atVuiSar[sar_idx];
else if (sar_idx == 255) {
tVui->tSar.num = getBits(pvBuf, 16);
tVui->tSar.den = getBits(pvBuf, 16);
} else
RPT(RPT_WRN,
"Unknown SAR index: %u.\n", sar_idx);
}
tVui->iOverscanInfoPresentFlag = getOneBit(pvBuf);
if (tVui->iOverscanInfoPresentFlag)
tVui->iOverscanAppropriateFlag = getOneBit(pvBuf);
tVui->iVideoSignalTypePresentFlag = getOneBit(pvBuf);
if (tVui->iVideoSignalTypePresentFlag) {
tVui->iVideoFormat = getBits(pvBuf, 3);
tVui->iVideoFullRangeFlag = getOneBit(pvBuf);
tVui->iColourDescriptionPresentFlag = getOneBit(pvBuf);
// if (tVui->iVideoFullRangeFlag && ptSps->pix_fmt == AV_PIX_FMT_YUV420P)
// ptSps->pix_fmt = AV_PIX_FMT_YUVJ420P;
if (tVui->iColourDescriptionPresentFlag) {
tVui->u8ColourPrimaries = getBits(pvBuf, 8);
tVui->u8TransferCharacteristic = getBits(pvBuf, 8);
tVui->u8MatrixCoeffs = getBits(pvBuf, 8);
}
}
tVui->iChromaLocInfoPresentFlag = getOneBit(pvBuf);
if (tVui->iChromaLocInfoPresentFlag) {
tVui->iChromaSampleLocTypeTopField = parseUe(pvBuf);
tVui->iChromaSampleLocTypeBottomField = parseUe(pvBuf);
}
tVui->iNeutraChromaIndicationFlag = getOneBit(pvBuf);
tVui->iFieldSeqFlag = getOneBit(pvBuf);
tVui->iFrameFieldInfoPresentFlag = getOneBit(pvBuf);
// Backup context in case an alternate header is detected
memcpy(&tBackup, pvBuf, sizeof(tBackup));
memcpy(&tBackupVui, tVui, sizeof(tBackupVui));
if (getBitsLeft(pvBuf) >= 68 && showBitsLong(pvBuf, 21) == 0x100000) {
tVui->iDefaultDisplayWindowFlag = 0;
RPT(RPT_WRN, "Invalid default display window\n");
} else
tVui->iDefaultDisplayWindowFlag = getOneBit(pvBuf);
if (tVui->iDefaultDisplayWindowFlag) {
int vert_mult = sg_au8HevcSubHeightC[ptSps->iChromaFormatIdc];
int horiz_mult = sg_au8HevcSubWidthC[ptSps->iChromaFormatIdc];
tVui->tDefDispWin.uiLeftOffset = parseUe(pvBuf) * horiz_mult;
tVui->tDefDispWin.uiRightOffset = parseUe(pvBuf) * horiz_mult;
tVui->tDefDispWin.uiTopOffset = parseUe(pvBuf) * vert_mult;
tVui->tDefDispWin.uiBottomOffset = parseUe(pvBuf) * vert_mult;
}
timing_info:
tVui->iVuiTimingInfoPresentFlag = getOneBit(pvBuf);
if (tVui->iVuiTimingInfoPresentFlag) {
if( getBitsLeft(pvBuf) < 66 && !alt) {
// The alternate syntax seem to have timing info located
// at where tDefDispWin is normally located
RPT(RPT_WRN,
"Strange VUI timing information, retrying...\n");
memcpy(tVui, &tBackupVui, sizeof(tBackupVui));
memcpy(pvBuf, &tBackup, sizeof(tBackup));
alt = 1;
goto timing_info;
}
tVui->u32VuiNumUnitsInTick = getBits(pvBuf, 32);
tVui->u32VuiTimeScale = getBits(pvBuf, 32);
if (alt) {
RPT(RPT_INF, "Retry got %u/%u fps\n",
tVui->u32VuiTimeScale, tVui->u32VuiNumUnitsInTick);
}
tVui->iVuiPocProportionalToTimingFlag = getOneBit(pvBuf);
if (tVui->iVuiPocProportionalToTimingFlag)
tVui->iVuiNumTicksPocDiffOneMinus1 = parseUe(pvBuf);
tVui->iVuiHrdParametersPresentFlag = getOneBit(pvBuf);
if (tVui->iVuiHrdParametersPresentFlag)
decodeHrd(pvBuf, 1, ptSps->iMaxSubLayers);
}
tVui->iBitstreamRestrictionFlag = getOneBit(pvBuf);
if (tVui->iBitstreamRestrictionFlag) {
if (getBitsLeft(pvBuf) < 8 && !alt) {
RPT(RPT_WRN,
"Strange VUI bitstream restriction information, retrying"
" from timing information...\n");
memcpy(tVui, &tBackupVui, sizeof(tBackupVui));
memcpy(pvBuf, &tBackup, sizeof(tBackup));
alt = 1;
goto timing_info;
}
tVui->iTilesFixedStructureFlag = getOneBit(pvBuf);
tVui->iMotionVectorsOverPicBoundariesFlag = getOneBit(pvBuf);
tVui->iRestrictedRefPicListsFlag = getOneBit(pvBuf);
tVui->iMinSpatialSegmentationIdc = parseUe(pvBuf);
tVui->iMaxBytesPerPicDenom = parseUe(pvBuf);
tVui->iMaxBitsPerMinCuDenom = parseUe(pvBuf);
tVui->iLog2MaxMvLengthHorizontal = parseUe(pvBuf);
tVui->iLog2MaxMvLengthVertical = parseUe(pvBuf);
}
if (getBitsLeft(pvBuf) < 1 && !alt) {
// XXX: Alternate syntax when iSpsRangeExtensionFlag != 0?
RPT(RPT_WRN,
"Overread in VUI, retrying from timing information...\n");
memcpy(tVui, &tBackupVui, sizeof(tBackupVui));
memcpy(pvBuf, &tBackup, sizeof(tBackup));
alt = 1;
goto timing_info;
}
}
static unsigned avModUintp2c(unsigned a, unsigned p)
{
return a & ((1 << p) - 1);
}
int h265DecSeqParameterSet( void *pvBufSrc, T_HEVCSPS *ptSps )
{
T_HEVCWindow *ow;
int iLog2DiffMaxMinTransformBlockSize;
int iBitDepthChroma, iStart, iVuiPresent, iSublayerOrderingInfo;
int i;
int iRet = 0;
void *pvBuf = NULL;
if(NULL == pvBufSrc || NULL == ptSps)
{
RPT(RPT_ERR,"ERR null pointer\n");
iRet = -1;
goto exit;
}
memset((void *)ptSps, 0, sizeof(T_HEVCSPS));
pvBuf = deEmulationPrevention(pvBufSrc);
if(NULL == pvBuf)
{
RPT(RPT_ERR,"ERR null pointer\n");
iRet = -1;
goto exit;
}
// Coded parameters
ptSps->uiVpsId = getBits(pvBuf, 4);
if (ptSps->uiVpsId >= HEVC_MAX_VPS_COUNT) {
RPT(RPT_ERR, "VPS id out of range: %d\n", ptSps->uiVpsId);
iRet = -1;
goto exit;
}
ptSps->iMaxSubLayers = getBits(pvBuf, 3) + 1;
if (ptSps->iMaxSubLayers > HEVC_MAX_SUB_LAYERS) {
RPT(RPT_ERR, "sps_max_sub_layers out of range: %d\n",
ptSps->iMaxSubLayers);
iRet = -1;
goto exit;
}
ptSps->u8temporalIdNestingFlag = getBits(pvBuf, 1);
if ((iRet = parsePtl(pvBuf, &ptSps->tPtl, ptSps->iMaxSubLayers)) < 0)
goto exit;
int sps_id = parseUe(pvBuf);
if (sps_id >= HEVC_MAX_SPS_COUNT) {
RPT(RPT_ERR, "SPS id out of range: %d\n", sps_id);
iRet = -1;
goto exit;
}
ptSps->iChromaFormatIdc = parseUe(pvBuf);
if (ptSps->iChromaFormatIdc > 3U) {
RPT(RPT_ERR, "iChromaFormatIdc %d is invalid\n", ptSps->iChromaFormatIdc);
iRet = -1;
goto exit;
}
if (ptSps->iChromaFormatIdc == 3)
ptSps->u8SeparateColourPlaneFlag = getOneBit(pvBuf);
if (ptSps->u8SeparateColourPlaneFlag)
ptSps->iChromaFormatIdc = 0;
ptSps->iWidth = parseUe(pvBuf);
ptSps->iHeight = parseUe(pvBuf);
if (getOneBit(pvBuf)) { // pic_conformance_flag
int vert_mult = sg_au8HevcSubHeightC[ptSps->iChromaFormatIdc];
int horiz_mult = sg_au8HevcSubWidthC[ptSps->iChromaFormatIdc];
ptSps->tPicConfWin.uiLeftOffset = parseUe(pvBuf) * horiz_mult;
ptSps->tPicConfWin.uiRightOffset = parseUe(pvBuf) * horiz_mult;
ptSps->tPicConfWin.uiTopOffset = parseUe(pvBuf) * vert_mult;
ptSps->tPicConfWin.uiBottomOffset = parseUe(pvBuf) * vert_mult;
ptSps->tOutputWindow = ptSps->tPicConfWin;
}
ptSps->iBitDepth = parseUe(pvBuf) + 8;
iBitDepthChroma = parseUe(pvBuf) + 8;
if (ptSps->iChromaFormatIdc && iBitDepthChroma != ptSps->iBitDepth) {
RPT(RPT_ERR,
"Luma bit depth (%d) is different from chroma bit depth (%d), "
"this is unsupported.\n",
ptSps->iBitDepth, iBitDepthChroma);
iRet = -1;
goto exit;
}
ptSps->iBitDepthChroma = iBitDepthChroma;
ptSps->uiLog2MaxPocLsb = parseUe(pvBuf) + 4;
if (ptSps->uiLog2MaxPocLsb > 16) {
RPT(RPT_ERR, "log2_max_pic_order_cnt_lsb_minus4 out range: %d\n",
ptSps->uiLog2MaxPocLsb - 4);
iRet = -1;
goto exit;
}
iSublayerOrderingInfo = getOneBit(pvBuf);
iStart = iSublayerOrderingInfo ? 0 : ptSps->iMaxSubLayers - 1;
for (i = iStart; i < ptSps->iMaxSubLayers; i++) {
ptSps->stTemporalLayer[i].iMaxDecPicBuffering = parseUe(pvBuf) + 1;
ptSps->stTemporalLayer[i].iNumReorderPics = parseUe(pvBuf);
ptSps->stTemporalLayer[i].iMaxLatencyIncrease = parseUe(pvBuf) - 1;
if (ptSps->stTemporalLayer[i].iMaxDecPicBuffering > (unsigned)HEVC_MAX_DPB_SIZE) {
RPT(RPT_ERR, "sps_max_dec_pic_buffering_minus1 out of range: %d\n",
ptSps->stTemporalLayer[i].iMaxDecPicBuffering - 1U);
iRet = -1;
goto exit;
}
if (ptSps->stTemporalLayer[i].iNumReorderPics > ptSps->stTemporalLayer[i].iMaxDecPicBuffering - 1) {
RPT(RPT_WRN, "sps_max_num_reorder_pics out of range: %d\n",
ptSps->stTemporalLayer[i].iNumReorderPics);
if (ptSps->stTemporalLayer[i].iNumReorderPics > HEVC_MAX_DPB_SIZE - 1) {
iRet = -1;
goto exit;
}
ptSps->stTemporalLayer[i].iMaxDecPicBuffering = ptSps->stTemporalLayer[i].iNumReorderPics + 1;
}
}
if (!iSublayerOrderingInfo) {
for (i = 0; i < iStart; i++) {
ptSps->stTemporalLayer[i].iMaxDecPicBuffering = ptSps->stTemporalLayer[iStart].iMaxDecPicBuffering;
ptSps->stTemporalLayer[i].iNumReorderPics = ptSps->stTemporalLayer[iStart].iNumReorderPics;
ptSps->stTemporalLayer[i].iMaxLatencyIncrease = ptSps->stTemporalLayer[iStart].iMaxLatencyIncrease;
}
}
ptSps->uiLog2MinCbSize = parseUe(pvBuf) + 3;
ptSps->uiLog2DiffMaxMinCodingBlockSize = parseUe(pvBuf);
ptSps->uiLog2MinTbSize = parseUe(pvBuf) + 2;
iLog2DiffMaxMinTransformBlockSize = parseUe(pvBuf);
ptSps->uiLog2MaxTrafoSize = iLog2DiffMaxMinTransformBlockSize +
ptSps->uiLog2MinTbSize;
if (ptSps->uiLog2MinCbSize < 3 || ptSps->uiLog2MinCbSize > 30) {
RPT(RPT_ERR, "Invalid value %d for uiLog2MinCbSize", ptSps->uiLog2MinCbSize);
iRet = -1;
goto exit;
}
if (ptSps->uiLog2DiffMaxMinCodingBlockSize > 30) {
RPT(RPT_ERR, "Invalid value %d for uiLog2DiffMaxMinCodingBlockSize", ptSps->uiLog2DiffMaxMinCodingBlockSize);
iRet = -1;
goto exit;
}
if (ptSps->uiLog2MinTbSize >= ptSps->uiLog2MinCbSize || ptSps->uiLog2MinTbSize < 2) {
RPT(RPT_ERR, "Invalid value for uiLog2MinTbSize");
iRet = -1;
goto exit;
}
if (iLog2DiffMaxMinTransformBlockSize < 0 || iLog2DiffMaxMinTransformBlockSize > 30) {
RPT(RPT_ERR, "Invalid value %d for iLog2DiffMaxMinTransformBlockSize", iLog2DiffMaxMinTransformBlockSize);
iRet = -1;
goto exit;
}
ptSps->iMaxTransformHierarchyDepthInter = parseUe(pvBuf);
ptSps->iMaxTransformHierarchyDepthIntra = parseUe(pvBuf);
ptSps->u8ScalingListEnableFlag = getOneBit(pvBuf);
if (ptSps->u8ScalingListEnableFlag) {
setDefaultScalingListData(&ptSps->tScalingList);
if (getOneBit(pvBuf)) {
iRet = scalingListData(pvBuf, &ptSps->tScalingList, ptSps);
if (iRet < 0)
goto exit;
}
}
ptSps->u8AmpEnabledFlag = getOneBit(pvBuf);
ptSps->u8SaoEnabled = getOneBit(pvBuf);
ptSps->iPcmEnabledFlag = getOneBit(pvBuf);
if (ptSps->iPcmEnabledFlag) {
ptSps->pcm.u8BitDepth = getBits(pvBuf, 4) + 1;
ptSps->pcm.u8BitDepthChroma = getBits(pvBuf, 4) + 1;
ptSps->pcm.uiLog2MinPcmCbSize = parseUe(pvBuf) + 3;
ptSps->pcm.uiLog2MaxPcmCbSize = ptSps->pcm.uiLog2MinPcmCbSize +
parseUe(pvBuf);
if (FFMAX(ptSps->pcm.u8BitDepth, ptSps->pcm.u8BitDepthChroma) > ptSps->iBitDepth) {
RPT(RPT_ERR,
"PCM bit depth (%d, %d) is greater than normal bit depth (%d)\n",
ptSps->pcm.u8BitDepth, ptSps->pcm.u8BitDepthChroma, ptSps->iBitDepth);
iRet = -1;
goto exit;
}
ptSps->pcm.u8LoopFilterDisableFlag = getOneBit(pvBuf);
}
ptSps->uiNbStRps = parseUe(pvBuf);
if (ptSps->uiNbStRps > HEVC_MAX_SHORT_TERM_REF_PIC_SETS) {
RPT(RPT_ERR, "Too many short term RPS: %d.\n",
ptSps->uiNbStRps);
iRet = -1;
goto exit;
}
for (i = 0; i < ptSps->uiNbStRps; i++) {
if ((iRet = hevcDecodeShortTermRps(pvBuf, &ptSps->atStRps[i],
ptSps, 0)) < 0)
goto exit;
}
ptSps->u8LongTermRefPicsPresentFlag = getOneBit(pvBuf);
if (ptSps->u8LongTermRefPicsPresentFlag) {
ptSps->u8NumLongTermRefPicsSps = parseUe(pvBuf);
if (ptSps->u8NumLongTermRefPicsSps > HEVC_MAX_LONG_TERM_REF_PICS) {
RPT(RPT_ERR, "Too many long term ref pics: %d.\n",
ptSps->u8NumLongTermRefPicsSps);
iRet = -1;
goto exit;
}
for (i = 0; i < ptSps->u8NumLongTermRefPicsSps; i++) {
ptSps->au16LtRefPicPocLsbSps[i] = getBits(pvBuf, ptSps->uiLog2MaxPocLsb);
ptSps->au8UsedByCurrPicLtSpsFlag[i] = getOneBit(pvBuf);
}
}
ptSps->u8SpsTemporalMvpEnabledFlag = getOneBit(pvBuf);
ptSps->u8SpsStrongIntraMmoothingEnableFlag = getOneBit(pvBuf);
ptSps->tVui.tSar = (T_AVRational){0, 1};
ptSps->iVuiPresent = getOneBit(pvBuf);
if (ptSps->iVuiPresent)
decodeVui(pvBuf, ptSps);
if (getOneBit(pvBuf)) { // sps_extension_flag
int iSpsRangeExtensionFlag = getOneBit(pvBuf);
getBits(pvBuf, 7); //sps_extension_7bits = getBits(pvBuf, 7);
if (iSpsRangeExtensionFlag) {
int iExtendedPrecisionProcessingFlag;
int iCabacBypassAlignmentEnabledFlag;
ptSps->iTransformSkipRotationEnabledFlag = getOneBit(pvBuf);
ptSps->iTransformSkipContextEnabledFlag = getOneBit(pvBuf);
ptSps->iImplicitRdpcmEnabledFlag = getOneBit(pvBuf);
ptSps->iExplicitRdpcmEnabledFlag = getOneBit(pvBuf);
iExtendedPrecisionProcessingFlag = getOneBit(pvBuf);
if (iExtendedPrecisionProcessingFlag)
RPT(RPT_WRN,
"iExtendedPrecisionProcessingFlag not yet implemented\n");
ptSps->iIntraSmoothingDisabledFlag = getOneBit(pvBuf);
ptSps->iHighPrecisionOffsetsEnabledFlag = getOneBit(pvBuf);
if (ptSps->iHighPrecisionOffsetsEnabledFlag)
RPT(RPT_WRN,
"iHighPrecisionOffsetsEnabledFlag not yet implemented\n");
ptSps->iPersistentRiceAdaptationEnabledFlag = getOneBit(pvBuf);
iCabacBypassAlignmentEnabledFlag = getOneBit(pvBuf);
if (iCabacBypassAlignmentEnabledFlag)
RPT(RPT_WRN,
"iCabacBypassAlignmentEnabledFlag not yet implemented\n");
}
}
ow = &ptSps->tOutputWindow;
if (ow->uiLeftOffset >= INT_MAX - ow->uiRightOffset ||
ow->uiTopOffset >= INT_MAX - ow->uiBottomOffset ||
ow->uiLeftOffset + ow->uiRightOffset >= ptSps->iWidth ||
ow->uiTopOffset + ow->uiBottomOffset >= ptSps->iHeight) {
RPT(RPT_WRN, "Invalid cropping offsets: %u/%u/%u/%u\n",
ow->uiLeftOffset, ow->uiRightOffset, ow->uiTopOffset, ow->uiBottomOffset);
RPT(RPT_WRN,
"Displaying the whole video surface.\n");
memset(ow, 0, sizeof(*ow));
memset(&ptSps->tPicConfWin, 0, sizeof(ptSps->tPicConfWin));
}
// Inferred parameters
ptSps->uiLog2CtbSize = ptSps->uiLog2MinCbSize +
ptSps->uiLog2DiffMaxMinCodingBlockSize;
ptSps->uiLog2MinPuSize = ptSps->uiLog2MinCbSize - 1;
if (ptSps->uiLog2CtbSize > HEVC_MAX_LOG2_CTB_SIZE) {
RPT(RPT_ERR, "CTB size out of range: 2^%d\n", ptSps->uiLog2CtbSize);
iRet = -1;
goto exit;
}
if (ptSps->uiLog2CtbSize < 4) {
RPT(RPT_ERR,
"uiLog2CtbSize %d differs from the bounds of any known profile\n",
ptSps->uiLog2CtbSize);
iRet = -1;
goto exit;
}
ptSps->iCtbWidth = (ptSps->iWidth + (1 << ptSps->uiLog2CtbSize) - 1) >> ptSps->uiLog2CtbSize;
ptSps->iCtbHeight = (ptSps->iHeight + (1 << ptSps->uiLog2CtbSize) - 1) >> ptSps->uiLog2CtbSize;
ptSps->iCtbSize = ptSps->iCtbWidth * ptSps->iCtbHeight;
ptSps->iMinCbWidth = ptSps->iWidth >> ptSps->uiLog2MinCbSize;
ptSps->iMinCbHeight = ptSps->iHeight >> ptSps->uiLog2MinCbSize;
ptSps->iMinTbWidth = ptSps->iWidth >> ptSps->uiLog2MinTbSize;
ptSps->iMinTbHeight = ptSps->iHeight >> ptSps->uiLog2MinTbSize;
ptSps->iMinPuWidth = ptSps->iWidth >> ptSps->uiLog2MinPuSize;
ptSps->iMinPuHeight = ptSps->iHeight >> ptSps->uiLog2MinPuSize;
ptSps->iTbMask = (1 << (ptSps->uiLog2CtbSize - ptSps->uiLog2MinTbSize)) - 1;
ptSps->iQpBdOffset = 6 * (ptSps->iBitDepth - 8);
if (avModUintp2c(ptSps->iWidth, ptSps->uiLog2MinCbSize) ||
avModUintp2c(ptSps->iHeight, ptSps->uiLog2MinCbSize)) {
RPT(RPT_ERR, "Invalid coded frame dimensions.\n");
iRet = -1;
goto exit;
}
if (ptSps->iMaxTransformHierarchyDepthInter > ptSps->uiLog2CtbSize - ptSps->uiLog2MinTbSize) {
RPT(RPT_ERR, "iMaxTransformHierarchyDepthInter out of range: %d\n",
ptSps->iMaxTransformHierarchyDepthInter);
iRet = -1;
goto exit;
}
if (ptSps->iMaxTransformHierarchyDepthIntra > ptSps->uiLog2CtbSize - ptSps->uiLog2MinTbSize) {
RPT(RPT_ERR, "iMaxTransformHierarchyDepthIntra out of range: %d\n",
ptSps->iMaxTransformHierarchyDepthIntra);
iRet = -1;
goto exit;
}
if (ptSps->uiLog2MaxTrafoSize > FFMIN(ptSps->uiLog2CtbSize, 5)) {
RPT(RPT_ERR,
"max transform block size out of range: %d\n",
ptSps->uiLog2MaxTrafoSize);
iRet = -1;
goto exit;
}
if (getBitsLeft(pvBuf) < 0) {
RPT(RPT_ERR,
"Overread SPS by %d bits\n", -getBitsLeft(pvBuf));
iRet = -1;
goto exit;
}
exit:
getBitContextFree(pvBuf);
return iRet;
}
int h265DecVideoParameterSet( void *pvBufSrc, T_HEVCVPS *ptVps )
{
int iRet = 0;
int i,j;
int uiVpsId = 0;
void *pvBuf = NULL;
if(NULL == pvBufSrc || NULL == ptVps)
{
RPT(RPT_ERR,"ERR null pointer\n");
iRet = -1;
goto exit;
}
memset((void *)ptVps, 0, sizeof(T_HEVCVPS));
pvBuf = deEmulationPrevention(pvBufSrc);
if(NULL == pvBuf)
{
RPT(RPT_ERR,"ERR null pointer\n");
iRet = -1;
goto exit;
}
RPT(RPT_DBG, "Decoding VPS\n");
uiVpsId = getBits(pvBuf, 4);
if (uiVpsId >= HEVC_MAX_VPS_COUNT) {
RPT(RPT_ERR, "VPS id out of range: %d\n", uiVpsId);
iRet = -1;
goto exit;
}
if (getBits(pvBuf, 2) != 3) { // vps_reserved_three_2bits
RPT(RPT_ERR, "vps_reserved_three_2bits is not three\n");
iRet = -1;
goto exit;
}
ptVps->iVpsMaxLayers = getBits(pvBuf, 6) + 1;
ptVps->iVpsMaxSubLayers = getBits(pvBuf, 3) + 1;
ptVps->u8VpsTemporalIdNestingFlag = getOneBit(pvBuf);
if (getBits(pvBuf, 16) != 0xffff) { // vps_reserved_ffff_16bits
RPT(RPT_ERR, "vps_reserved_ffff_16bits is not 0xffff\n");
iRet = -1;
goto exit;
}
if (ptVps->iVpsMaxSubLayers > HEVC_MAX_SUB_LAYERS) {
RPT(RPT_ERR, "iVpsMaxSubLayers out of range: %d\n",
ptVps->iVpsMaxSubLayers);
iRet = -1;
goto exit;
}
if (parsePtl(pvBuf, &ptVps->tPtl, ptVps->iVpsMaxSubLayers) < 0){
iRet = -1;
goto exit;
}
ptVps->iVpsSubLayerOrderingInfoPresentFlag = getOneBit(pvBuf);
i = ptVps->iVpsSubLayerOrderingInfoPresentFlag ? 0 : ptVps->iVpsMaxSubLayers - 1;
for (; i < ptVps->iVpsMaxSubLayers; i++) {
ptVps->uiVpsMaxDecPicBuffering[i] = parseUe(pvBuf) + 1;
ptVps->auiVpsNumReorderPics[i] = parseUe(pvBuf);
ptVps->auiVpsMaxLatencyIncrease[i] = parseUe(pvBuf) - 1;
if (ptVps->uiVpsMaxDecPicBuffering[i] > HEVC_MAX_DPB_SIZE || !ptVps->uiVpsMaxDecPicBuffering[i]) {
RPT(RPT_ERR, "vps_max_dec_pic_buffering_minus1 out of range: %d\n",
ptVps->uiVpsMaxDecPicBuffering[i] - 1);
iRet = -1;
goto exit;
}
if (ptVps->auiVpsNumReorderPics[i] > ptVps->uiVpsMaxDecPicBuffering[i] - 1) {
RPT(RPT_WRN, "vps_max_num_reorder_pics out of range: %d\n",
ptVps->auiVpsNumReorderPics[i]);
}
}
ptVps->iVpsMaxLayerId = getBits(pvBuf, 6);
ptVps->iVpsNumLayerSets = parseUe(pvBuf) + 1;
if (ptVps->iVpsNumLayerSets < 1 || ptVps->iVpsNumLayerSets > 1024 ||
(ptVps->iVpsNumLayerSets - 1LL) * (ptVps->iVpsMaxLayerId + 1LL) > getBitsLeft(pvBuf)) {
RPT(RPT_ERR, "too many layer_id_included_flags\n");
iRet = -1;
goto exit;
}
for (i = 1; i < ptVps->iVpsNumLayerSets; i++)
for (j = 0; j <= ptVps->iVpsMaxLayerId; j++)
getBits(pvBuf, 1); // layer_id_included_flag[i][j]
ptVps->u8VpsTimingInfoPresentFlag = getOneBit(pvBuf);
if (ptVps->u8VpsTimingInfoPresentFlag) {
ptVps->u32VpsNumUnitsInTick = getBits(pvBuf, 32);
ptVps->u32VpsTimeScale = getBits(pvBuf, 32);
ptVps->u8VpsPocProportionalToTimingFlag = getOneBit(pvBuf);
if (ptVps->u8VpsPocProportionalToTimingFlag)
ptVps->iVpsNumTicksPocDiffOne = parseUe(pvBuf) + 1;
ptVps->iVpsNumHrdParameters = parseUe(pvBuf);
if (ptVps->iVpsNumHrdParameters > (unsigned)ptVps->iVpsNumLayerSets) {
RPT(RPT_ERR,
"iVpsNumHrdParameters %d is invalid\n", ptVps->iVpsNumHrdParameters);
iRet = -1;
goto exit;
}
for (i = 0; i < ptVps->iVpsNumHrdParameters; i++) {
int common_inf_present = 1;
parseUe(pvBuf); // hrd_layer_set_idx
if (i)
common_inf_present = getOneBit(pvBuf);
decodeHrd(pvBuf, common_inf_present, ptVps->iVpsMaxSubLayers);
}
}
getOneBit(pvBuf); /* vps_extension_flag */
if (getBitsLeft(pvBuf) < 0) {
RPT(RPT_ERR,
"Overread VPS by %d bits\n", -getBitsLeft(pvBuf));
iRet = -1;
goto exit;
}
exit:
getBitContextFree(pvBuf);
return iRet;
}
void h264GetWidthHeight(T_SPS *ptSps, int *piWidth, int *piHeight)
{
// ¿í¸ß¼ÆË㹫ʽ
int iCodeWidth = 0;
int iCodedHeight = 0;
iCodeWidth = 16 * ptSps->iMbWidth;
iCodedHeight = 16 * ptSps->iMbHeight;
*piWidth = iCodeWidth - (ptSps->uiCropRight + ptSps->uiCropLeft);
*piHeight = iCodedHeight - (ptSps->uiCropTop + ptSps->uiCropBottom);
if (*piWidth <= 0 || *piHeight <= 0) {
*piWidth = iCodeWidth;
*piHeight = iCodedHeight;
}
RPT(RPT_DBG, "iCodeWidth:%d, iCodedHeight:%d\n", iCodeWidth, iCodedHeight);
RPT(RPT_DBG, "*piWidth:%d, *piHeight:%d\n", *piWidth, *piHeight);
RPT(RPT_DBG, "ptSps->uiCropRight:%d, ptSps->uiCropLeft:%d\n", ptSps->uiCropRight, ptSps->uiCropLeft);
RPT(RPT_DBG, "ptSps->uiCropTop:%d, ptSps->uiCropBottom:%d\n", ptSps->uiCropTop, ptSps->uiCropBottom);
}
int h264GetFormat(T_SPS *ptSps)
{
return ptSps->iFrameMbsOnlyFlag;
}
void h264GeFramerate(T_SPS *ptSps, float *pfFramerate)
{
if(ptSps->iTimingInfoPresentFlag)
{
*pfFramerate = (float)ptSps->u32TimeScale / (float)ptSps->u32NumUnitsInTick / 2.0;
}else{
*pfFramerate = 0;
}
switch((int)*pfFramerate)
{
case 23:// 23.98
RPT(RPT_DBG, "frame rate:23.98");
break;
case 24:
RPT(RPT_DBG, "frame rate:24");
break;
case 25:
RPT(RPT_DBG, "frame rate:25");
break;
case 29://29.97
RPT(RPT_DBG, "frame rate:29.97");
break;
case 30:
RPT(RPT_DBG, "frame rate:30");
break;
case 50:
RPT(RPT_DBG, "frame rate:50");
break;
case 59://59.94
RPT(RPT_DBG, "frame rate:59.94");
break;
case 60:
RPT(RPT_DBG, "frame rate:60");
break;
case 6:
RPT(RPT_DBG, "frame rate:6");
break;
case 8:
RPT(RPT_DBG, "frame rate:8");
break;
case 12:
RPT(RPT_DBG, "frame rate:12");
break;
case 15:
RPT(RPT_DBG, "frame rate:15");
break;
case 10:
RPT(RPT_DBG, "frame rate:10");
break;
default:
RPT(RPT_DBG, "frame rate:0");
break;
}
return;
}
void h265GetWidthHeight(T_HEVCSPS *ptSps, int *piWidth, int *piHeight)
{
#if 1
int iCodeWidth = 0;
int iCodedHeight = 0;
iCodeWidth = ptSps->iWidth;
iCodedHeight = ptSps->iHeight;
*piWidth = ptSps->iWidth - ptSps->tOutputWindow.uiLeftOffset - ptSps->tOutputWindow.uiRightOffset;
*piHeight = ptSps->iHeight - ptSps->tOutputWindow.uiTopOffset - ptSps->tOutputWindow.uiBottomOffset;
RPT(RPT_DBG, "iCodeWidth:%d, iCodedHeight:%d\n", iCodeWidth, iCodedHeight);
RPT(RPT_DBG, "*piWidth:%d, *piHeight:%d\n", *piWidth, *piHeight);
RPT(RPT_DBG, "ptSps->tOutputWindow.uiRightOffset:%d, ptSps->tOutputWindow.uiLeftOffset:%d\n", ptSps->tOutputWindow.uiRightOffset, ptSps->tOutputWindow.uiLeftOffset);
RPT(RPT_DBG, "ptSps->tOutputWindow.uiTopOffset:%d, ptSps->tOutputWindow.uiBottomOffset:%d\n", ptSps->tOutputWindow.uiTopOffset, ptSps->tOutputWindow.uiBottomOffset);
#endif
}
void h265GeFramerate(T_HEVCVPS *ptVps, T_HEVCSPS *ptSps,float *pfFramerate)
{
if (ptVps && ptVps->u8VpsTimingInfoPresentFlag) {
*pfFramerate = (float)(ptVps->u32VpsTimeScale) / (float)(ptVps->u32VpsNumUnitsInTick);
} else if (ptSps && ptSps->tVui.iVuiTimingInfoPresentFlag && ptSps->iVuiPresent) {
*pfFramerate = (float)(ptSps->tVui.u32VuiTimeScale) / (float)(ptSps->tVui.u32VuiNumUnitsInTick);
}
else{
//vps sps可能不包含帧率
*pfFramerate = 0.0F;
RPT(RPT_WRN, "frame rate:0");
}
}
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