#include #include #include #include /* 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; uint32_t iRet = 0; int iResoLen = 0; if(NULL == ptPtr) { RPT(RPT_ERR, "NULL pointer"); goto exit; } if(iN > MAX_LEN) { iN = MAX_LEN; } iResoLen = getBitsLeft(ptPtr); if(iResoLen < iN) { 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<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<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; jiBufSize--; } } 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"); } } int h265ParsePps(T_GetBitContext *ptGetBitContext, T_HEVC_PPS *ptPps) { int iRet = 0; ptPps->pps_pic_parameter_set_id = parseUe(ptGetBitContext); ptPps->pps_seq_parameter_set_id = parseUe(ptGetBitContext); ptPps->dependent_slice_segments_enabled_flag = getOneBit(ptGetBitContext); ptPps->output_flag_present_flag = getOneBit(ptGetBitContext); ptPps->num_extra_slice_header_bits = getBits(ptGetBitContext, 3); ptPps->sign_data_hiding_enabled_flag = getOneBit(ptGetBitContext); ptPps->cabac_init_present_flag = getOneBit(ptGetBitContext); ptPps->num_ref_idx_l0_default_active_minus1 = parseUe(ptGetBitContext); ptPps->num_ref_idx_l1_default_active_minus1 = parseUe(ptGetBitContext); ptPps->init_qp_minus26 = parseSe(ptGetBitContext); ptPps->constrained_intra_pred_flag = getOneBit(ptGetBitContext); ptPps->transform_skip_enabled_flag = getOneBit(ptGetBitContext); ptPps->cu_qp_delta_enabled_flag = getOneBit(ptGetBitContext); if (ptPps->cu_qp_delta_enabled_flag) { ptPps->diff_cu_qp_delta_depth = parseUe(ptGetBitContext); } ptPps->pps_cb_qp_offset = parseSe(ptGetBitContext); ptPps->pps_cr_qp_offset = parseSe(ptGetBitContext); ptPps->pps_slice_chroma_qp_offsets_present_flag = getOneBit(ptGetBitContext); ptPps->weighted_pred_flag = getOneBit(ptGetBitContext); ptPps->weighted_bipred_flag = getOneBit(ptGetBitContext); ptPps->transquant_bypass_enabled_flag = getOneBit(ptGetBitContext); ptPps->tiles_enabled_flag = getOneBit(ptGetBitContext); ptPps->entropy_coding_sync_enabled_flag = getOneBit(ptGetBitContext); return iRet; }