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81d63948d1
Copied from oneVPL project (https://github.com/oneapi-src/oneVPL) v2022.0.3 tag at the commit of efc259f8b7ee5c334bca1a904a503186038bbbdd This is corresponding to MFX API version 2.6 Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1408>
136 lines
5.4 KiB
C
136 lines
5.4 KiB
C
/*############################################################################
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# Copyright Intel Corporation
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#
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# SPDX-License-Identifier: MIT
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############################################################################*/
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#ifndef __MFX_JPEG_H__
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#define __MFX_JPEG_H__
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#include "mfxdefs.h"
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#include "mfxstructures.h"
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#ifdef __cplusplus
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extern "C"
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{
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#endif /* __cplusplus */
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/* CodecId */
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enum {
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MFX_CODEC_JPEG = MFX_MAKEFOURCC('J','P','E','G') /*!< JPEG codec */
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};
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/* CodecProfile, CodecLevel */
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enum
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{
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MFX_PROFILE_JPEG_BASELINE = 1 /*!< Baseline JPEG profile. */
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};
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/*! The Rotation enumerator itemizes the JPEG rotation options. */
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enum
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{
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MFX_ROTATION_0 = 0, /*!< No rotation. */
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MFX_ROTATION_90 = 1, /*!< 90 degree rotation. */
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MFX_ROTATION_180 = 2, /*!< 180 degree rotation. */
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MFX_ROTATION_270 = 3 /*!< 270 degree rotation. */
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};
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enum {
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MFX_EXTBUFF_JPEG_QT = MFX_MAKEFOURCC('J','P','G','Q'), /*!< This extended buffer defines quantization tables for JPEG encoder. */
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MFX_EXTBUFF_JPEG_HUFFMAN = MFX_MAKEFOURCC('J','P','G','H') /*!< This extended buffer defines Huffman tables for JPEG encoder. */
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};
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/*! The JPEGColorFormat enumerator itemizes the JPEG color format options. */
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enum {
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MFX_JPEG_COLORFORMAT_UNKNOWN = 0, /*! Unknown color format. The decoder tries to determine color format from available in bitstream information.
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If such information is not present, then MFX_JPEG_COLORFORMAT_YCbCr color format is assumed. */
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MFX_JPEG_COLORFORMAT_YCbCr = 1, /*! Bitstream contains Y, Cb and Cr components. */
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MFX_JPEG_COLORFORMAT_RGB = 2 /*! Bitstream contains R, G and B components. */
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};
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/*! The JPEGScanType enumerator itemizes the JPEG scan types. */
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enum {
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MFX_SCANTYPE_UNKNOWN = 0, /*!< Unknown scan type. */
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MFX_SCANTYPE_INTERLEAVED = 1, /*!< Interleaved scan. */
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MFX_SCANTYPE_NONINTERLEAVED = 2 /*!< Non-interleaved scan. */
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};
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enum {
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MFX_CHROMAFORMAT_JPEG_SAMPLING = 6 /*!< Color sampling specified via mfxInfoMFX::SamplingFactorH and SamplingFactorV. */
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};
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MFX_PACK_BEGIN_USUAL_STRUCT()
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/*!
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Specifies quantization tables. The application may specify up to 4 quantization tables. The encoder assigns an ID to each table.
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That ID is equal to the table index in the Qm array. Table “0” is used for encoding of the Y component, table “1” for the U component, and table “2”
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for the V component. The application may specify fewer tables than the number of components in the image. If two tables are specified,
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then table “1” is used for both U and V components. If only one table is specified then it is used for all components in the image.
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The following table illustrates this behavior.
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@internal
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+------------------+---------+------+---+
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| Table ID | 0 | 1 | 2 |
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+------------------+---------+------+---+
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| Number of tables | | | |
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+==================+=========+======+===+
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| 0 | Y, U, V | | |
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+------------------+---------+------+---+
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| 1 | Y | U, V | |
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+------------------+---------+------+---+
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| 2 | Y | U | V |
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+------------------+---------+------+---+
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@endinternal
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*/
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typedef struct {
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mfxExtBuffer Header; /*!< Extension buffer header. Header.BufferId must be equal to MFX_EXTBUFF_JPEG_QT. */
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mfxU16 reserved[7];
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mfxU16 NumTable; /*!< Number of quantization tables defined in Qmarray. */
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mfxU16 Qm[4][64]; /*!< Quantization table values. */
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} mfxExtJPEGQuantTables;
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MFX_PACK_END()
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MFX_PACK_BEGIN_USUAL_STRUCT()
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/*!
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Specifies Huffman tables. The application may specify up to 2 quantization table pairs for baseline process. The encoder
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assigns an ID to each table. That ID is equal to the table index in the DCTables and ACTables arrays. Table “0” is used for encoding of the Y component and
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table “1” is used for encoding of the U and V component. The application may specify only one table, in which case the table will be used for all components in the image.
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The following table illustrates this behavior.
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@internal
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+------------------+---------+------+
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| Table ID | 0 | 1 |
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+------------------+---------+------+
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| Number of tables | | |
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+==================+=========+======+
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| 0 | Y, U, V | |
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+------------------+---------+------+
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| 1 | Y | U, V |
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+------------------+---------+------+
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@endinternal
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*/
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typedef struct {
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mfxExtBuffer Header; /*!< Extension buffer header. Header.BufferId must be equal to MFX_EXTBUFF_JPEG_HUFFMAN. */
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mfxU16 reserved[2];
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mfxU16 NumDCTable; /*!< Number of DC quantization table in DCTables array. */
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mfxU16 NumACTable; /*!< Number of AC quantization table in ACTables array. */
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struct {
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mfxU8 Bits[16]; /*!< Number of codes for each code length. */
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mfxU8 Values[12]; /*!< List of the 8-bit symbol values. */
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} DCTables[4]; /*!< Array of DC tables. */
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struct {
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mfxU8 Bits[16]; /*!< Number of codes for each code length. */
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mfxU8 Values[162]; /*!< Array of AC tables. */
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} ACTables[4]; /*!< List of the 8-bit symbol values. */
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} mfxExtJPEGHuffmanTables;
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MFX_PACK_END()
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#ifdef __cplusplus
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} // extern "C"
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#endif /* __cplusplus */
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#endif // __MFX_JPEG_H__
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