| /* |
| * Copyright (c) 2014 Intel Corporation. All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sub license, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the |
| * next paragraph) shall be included in all copies or substantial portions |
| * of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
| * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR |
| * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| /* |
| * This file is a utilities file which supports JPEG Encode process |
| */ |
| |
| #include <sys/types.h> |
| #include <stdio.h> |
| |
| #define MAX_JPEG_COMPONENTS 3 //only for Y, U and V |
| #define JPEG_Y 0 |
| #define JPEG_U 1 |
| #define JPEG_V 2 |
| #define NUM_QUANT_ELEMENTS 64 |
| #define NUM_MAX_HUFFTABLE 2 |
| #define NUM_AC_RUN_SIZE_BITS 16 |
| #define NUM_AC_CODE_WORDS_HUFFVAL 162 |
| #define NUM_DC_RUN_SIZE_BITS 16 |
| #define NUM_DC_CODE_WORDS_HUFFVAL 12 |
| |
| #define BITSTREAM_ALLOCATE_STEPPING 4096 |
| |
| struct __bitstream { |
| unsigned int *buffer; |
| int bit_offset; |
| int max_size_in_dword; |
| }; |
| |
| typedef struct __bitstream bitstream; |
| |
| static unsigned int |
| swap32(unsigned int val) |
| { |
| unsigned char *pval = (unsigned char *)&val; |
| |
| return ((pval[0] << 24) | |
| (pval[1] << 16) | |
| (pval[2] << 8) | |
| (pval[3] << 0)); |
| } |
| |
| static void |
| bitstream_start(bitstream *bs) |
| { |
| bs->max_size_in_dword = BITSTREAM_ALLOCATE_STEPPING; |
| bs->buffer = calloc(bs->max_size_in_dword * sizeof(int), 1); |
| assert(bs->buffer); |
| bs->bit_offset = 0; |
| } |
| |
| static void |
| bitstream_end(bitstream *bs) |
| { |
| int pos = (bs->bit_offset >> 5); |
| int bit_offset = (bs->bit_offset & 0x1f); |
| int bit_left = 32 - bit_offset; |
| |
| if (bit_offset) { |
| bs->buffer[pos] = swap32((bs->buffer[pos] << bit_left)); |
| } |
| } |
| |
| static void |
| bitstream_put_ui(bitstream *bs, unsigned int val, int size_in_bits) |
| { |
| int pos = (bs->bit_offset >> 5); |
| int bit_offset = (bs->bit_offset & 0x1f); |
| int bit_left = 32 - bit_offset; |
| |
| if (!size_in_bits) |
| return; |
| |
| if (size_in_bits < 32) |
| val &= ((1 << size_in_bits) - 1); |
| |
| bs->bit_offset += size_in_bits; |
| |
| if (bit_left > size_in_bits) { |
| bs->buffer[pos] = (bs->buffer[pos] << size_in_bits | val); |
| } else { |
| size_in_bits -= bit_left; |
| bs->buffer[pos] = (bs->buffer[pos] << bit_left) | (val >> size_in_bits); |
| bs->buffer[pos] = swap32(bs->buffer[pos]); |
| |
| if (pos + 1 == bs->max_size_in_dword) { |
| bs->max_size_in_dword += BITSTREAM_ALLOCATE_STEPPING; |
| bs->buffer = realloc(bs->buffer, bs->max_size_in_dword * sizeof(unsigned int)); |
| assert(bs->buffer); |
| } |
| |
| bs->buffer[pos + 1] = val; |
| } |
| } |
| |
| //As per Jpeg Spec ISO/IEC 10918-1, below values are assigned |
| enum jpeg_markers { |
| |
| //Define JPEG markers as 0xFFXX if you are adding the value directly to the buffer |
| //Else define marker as 0xXXFF if you are assigning the marker to a structure variable. |
| //This is needed because of the little-endedness of the IA |
| |
| SOI = 0xFFD8, //Start of Image |
| EOI = 0xFFD9, //End of Image |
| SOS = 0xFFDA, //Start of Scan |
| DQT = 0xFFDB, //Define Quantization Table |
| DRI = 0xFFDD, //Define restart interval |
| RST0 = 0xFFD0, //Restart interval termination |
| DHT = 0xFFC4, //Huffman table |
| SOF0 = 0xFFC0, //Baseline DCT |
| APP0 = 0xFFE0, //Application Segment |
| COM = 0xFFFE //Comment segment |
| }; |
| |
| typedef struct _JPEGFrameHeader { |
| |
| uint16_t SOF; //Start of Frame Header |
| uint16_t Lf; //Length of Frame Header |
| uint8_t P; //Sample precision |
| uint16_t Y; //Number of lines |
| uint16_t X; //Number of samples per line |
| uint8_t Nf; //Number of image components in frame |
| |
| struct _JPEGComponent { |
| uint8_t Ci; //Component identifier |
| uint8_t Hi:4; //Horizontal sampling factor |
| uint8_t Vi:4; //Vertical sampling factor |
| uint8_t Tqi; //Quantization table destination selector |
| } JPEGComponent[MAX_JPEG_COMPONENTS]; |
| |
| } JPEGFrameHeader; |
| |
| |
| typedef struct _JPEGScanHeader { |
| |
| uint16_t SOS; //Start of Scan |
| uint16_t Ls; //Length of Scan |
| uint8_t Ns; //Number of image components in the scan |
| |
| struct _ScanComponent { |
| uint8_t Csj; //Scan component selector |
| uint8_t Tdj:4; //DC Entropy coding table destination selector(Tdj:4 bits) |
| uint8_t Taj:4; //AC Entropy coding table destination selector(Taj:4 bits) |
| } ScanComponent[MAX_JPEG_COMPONENTS]; |
| |
| uint8_t Ss; //Start of spectral or predictor selection, 0 for Baseline |
| uint8_t Se; //End of spectral or predictor selection, 63 for Baseline |
| uint8_t Ah:4; //Successive approximation bit position high, 0 for Baseline |
| uint8_t Al:4; //Successive approximation bit position low, 0 for Baseline |
| |
| } JPEGScanHeader; |
| |
| |
| typedef struct _JPEGQuantSection { |
| |
| uint16_t DQT; //Quantization table marker |
| uint16_t Lq; //Length of Quantization table definition |
| uint8_t Tq:4; //Quantization table destination identifier |
| uint8_t Pq:4; //Quatization table precision. Should be 0 for 8-bit samples |
| uint8_t Qk[NUM_QUANT_ELEMENTS]; //Quantization table elements |
| |
| } JPEGQuantSection; |
| |
| typedef struct _JPEGHuffSection { |
| |
| uint16_t DHT; //Huffman table marker |
| uint16_t Lh; //Huffman table definition length |
| uint8_t Tc:4; //Table class- 0:DC, 1:AC |
| uint8_t Th:4; //Huffman table destination identifier |
| uint8_t Li[NUM_AC_RUN_SIZE_BITS]; //Number of Huffman codes of length i |
| uint8_t Vij[NUM_AC_CODE_WORDS_HUFFVAL]; //Value associated with each Huffman code |
| |
| } JPEGHuffSection; |
| |
| |
| typedef struct _JPEGRestartSection { |
| |
| uint16_t DRI; //Restart interval marker |
| uint16_t Lr; //Legth of restart interval segment |
| uint16_t Ri; //Restart interval |
| |
| } JPEGRestartSection; |
| |
| |
| typedef struct _JPEGCommentSection { |
| |
| uint16_t COM; //Comment marker |
| uint16_t Lc; //Comment segment length |
| uint8_t Cmi; //Comment byte |
| |
| } JPEGCommentSection; |
| |
| |
| typedef struct _JPEGAppSection { |
| |
| uint16_t APPn; //Application data marker |
| uint16_t Lp; //Application data segment length |
| uint8_t Api; //Application data byte |
| |
| } JPEGAppSection; |
| |
| //Luminance quantization table |
| //Source: Jpeg Spec ISO/IEC 10918-1, Annex K, Table K.1 |
| uint8_t jpeg_luma_quant[NUM_QUANT_ELEMENTS] = { |
| 16, 11, 10, 16, 24, 40, 51, 61, |
| 12, 12, 14, 19, 26, 58, 60, 55, |
| 14, 13, 16, 24, 40, 57, 69, 56, |
| 14, 17, 22, 29, 51, 87, 80, 62, |
| 18, 22, 37, 56, 68, 109, 103, 77, |
| 24, 35, 55, 64, 81, 104, 113, 92, |
| 49, 64, 78, 87, 103, 121, 120, 101, |
| 72, 92, 95, 98, 112, 100, 103, 99 |
| }; |
| |
| //Luminance quantization table |
| //Source: Jpeg Spec ISO/IEC 10918-1, Annex K, Table K.2 |
| uint8_t jpeg_chroma_quant[NUM_QUANT_ELEMENTS] = { |
| 17, 18, 24, 47, 99, 99, 99, 99, |
| 18, 21, 26, 66, 99, 99, 99, 99, |
| 24, 26, 56, 99, 99, 99, 99, 99, |
| 47, 66, 99, 99, 99, 99, 99, 99, |
| 99, 99, 99, 99, 99, 99, 99, 99, |
| 99, 99, 99, 99, 99, 99, 99, 99, |
| 99, 99, 99, 99, 99, 99, 99, 99, |
| 99, 99, 99, 99, 99, 99, 99, 99 |
| }; |
| |
| |
| //Zigzag scan order of the the Luma and Chroma components |
| //Note: Jpeg Spec ISO/IEC 10918-1, Figure A.6 shows the zigzag order differently. |
| //The Spec is trying to show the zigzag pattern with number positions. The below |
| //table will use the patter shown by A.6 and map the postion of the elements in the array |
| uint8_t jpeg_zigzag[] = { |
| 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 |
| }; |
| |
| |
| //Huffman table for Luminance DC Coefficients |
| //Reference Jpeg Spec ISO/IEC 10918-1, K.3.3.1 |
| //K.3.3.1 is the summarized version of Table K.3 |
| uint8_t jpeg_hufftable_luma_dc[] = { |
| //TcTh (Tc=0 since 0:DC, 1:AC; Th=0) |
| 0x00, |
| //Li |
| 0x00, 0x01, 0x05, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| //Vi |
| 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B |
| }; |
| |
| //Huffman table for Chrominance DC Coefficients |
| //Reference Jpeg Spec ISO/IEC 10918-1, K.3.3.1 |
| //K.3.3.1 is the summarized version of Table K.4 |
| uint8_t jpeg_hufftable_chroma_dc[] = { |
| //TcTh (Tc=0 since 0:DC, 1:AC; Th=1) |
| 0x01, |
| //Li |
| 0x00, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, |
| //Vi |
| 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B |
| }; |
| |
| |
| //Huffman table for Luminance AC Coefficients |
| //Reference Jpeg Spec ISO/IEC 10918-1, K.3.3.2 |
| //K.3.3.2 is the summarized version of Table K.5 |
| uint8_t jpeg_hufftable_luma_ac[] = { |
| //TcTh (Tc=1 since 0:DC, 1:AC; Th=0) |
| 0x10, |
| //Li |
| 0x00, 0x02, 0x01, 0x03, 0x03, 0x02, 0x04, 0x03, 0x05, 0x05, 0x04, 0x04, 0x00, 0x00, 0x01, 0x7D, |
| //Vi |
| 0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, 0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07, |
| 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xA1, 0x08, 0x23, 0x42, 0xB1, 0xC1, 0x15, 0x52, 0xD1, 0xF0, |
| 0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0A, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x25, 0x26, 0x27, 0x28, |
| 0x29, 0x2A, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, |
| 0x4A, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, |
| 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, |
| 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, |
| 0xA8, 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xC2, 0xC3, 0xC4, 0xC5, |
| 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE1, 0xE2, |
| 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, |
| 0xF9, 0xFA |
| }; |
| |
| //Huffman table for Chrominance AC Coefficients |
| //Reference Jpeg Spec ISO/IEC 10918-1, K.3.3.2 |
| //K.3.3.2 is the summarized version of Table K.6 |
| uint8_t jpeg_hufftable_chroma_ac[] = { |
| //TcTh (Tc=1 since 0:DC, 1:AC; Th=1) |
| 0x11, |
| //Li |
| 0x00, 0x02, 0x01, 0x02, 0x04, 0x04, 0x03, 0x04, 0x07, 0x05, 0x04, 0x04, 0x00, 0x01, 0x02, 0x77, |
| //Vi |
| 0x00, 0x01, 0x02, 0x03, 0x11, 0x04, 0x05, 0x21, 0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71, |
| 0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91, 0xA1, 0xB1, 0xC1, 0x09, 0x23, 0x33, 0x52, 0xF0, |
| 0x15, 0x62, 0x72, 0xD1, 0x0A, 0x16, 0x24, 0x34, 0xE1, 0x25, 0xF1, 0x17, 0x18, 0x19, 0x1A, 0x26, |
| 0x27, 0x28, 0x29, 0x2A, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, |
| 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, |
| 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, |
| 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, |
| 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xC2, 0xC3, |
| 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, |
| 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, |
| 0xF9, 0xFA |
| }; |
| |
| typedef struct _YUVComponentSpecs { |
| //One of 0(I420)/1(NV12)/2(UYVY)/3(YUY2)/4(Y8)/5(RGBA)> |
| unsigned int yuv_type; |
| // One of VA_RT_FORMAT_YUV420, VA_RT_FORMAT_YUV422, VA_RT_FORMAT_YUV400, VA_RT_FORMAT_YUV444, VA_RT_FORMAT_RGB32 |
| unsigned int va_surface_format; |
| //One of VA_FOURCC_I420, VA_FOURCC_NV12, VA_FOURCC_UYVY, VA_FOURCC_YUY2, VA_FOURCC_Y800, VA_FOURCC_444P, VA_FOURCC_RGBA |
| unsigned int fourcc_val; //Using this field to evaluate the input file type. |
| //no.of. components |
| unsigned int num_components; |
| //Y horizontal subsample |
| unsigned int y_h_subsample; |
| //Y vertical subsample |
| unsigned int y_v_subsample; |
| //U horizontal subsample |
| unsigned int u_h_subsample; |
| //U vertical subsample |
| unsigned int u_v_subsample; |
| //V horizontal subsample |
| unsigned int v_h_subsample; |
| //V vertical subsample |
| unsigned int v_v_subsample; |
| } YUVComponentSpecs; |