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Diffstat (limited to 'Src/h264dec/ldecod/inc/elements.h')
| -rw-r--r-- | Src/h264dec/ldecod/inc/elements.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/Src/h264dec/ldecod/inc/elements.h b/Src/h264dec/ldecod/inc/elements.h new file mode 100644 index 00000000..f115bff6 --- /dev/null +++ b/Src/h264dec/ldecod/inc/elements.h @@ -0,0 +1,112 @@ + +/*! + ************************************************************************************* + * \file elements.h + * + * \brief + * Header file for elements in H.264 streams + * + * \date + * 6.10.2000 + * + * \version + * 1.0 + * + * \author + * Sebastian Purreiter <sebastian.purreiter@mch.siemens.de> \n + * Siemens AG, Information and Communication Mobile \n + * P.O.Box 80 17 07 \n + * D-81617 Munich, Germany \n + ************************************************************************************* + */ + +#ifndef _ELEMENTS_H_ +#define _ELEMENTS_H_ + +/*! + * definition of H.264 syntax elements + * order of elements follow dependencies for picture reconstruction + */ +/*! + * \brief Assignment of old TYPE partition elements to new + * elements + * + * old element | new elements + * ----------------+------------------------------------------------------------------- + * TYPE_HEADER | SE_HEADER, SE_PTYPE + * TYPE_MBHEADER | SE_MBTYPE, SE_REFFRAME, SE_INTRAPREDMODE + * TYPE_MVD | SE_MVD + * TYPE_CBP | SE_CBP_INTRA, SE_CBP_INTER + * SE_DELTA_QUANT_INTER + * SE_DELTA_QUANT_INTRA + * TYPE_COEFF_Y | SE_LUM_DC_INTRA, SE_LUM_AC_INTRA, SE_LUM_DC_INTER, SE_LUM_AC_INTER + * TYPE_2x2DC | SE_CHR_DC_INTRA, SE_CHR_DC_INTER + * TYPE_COEFF_C | SE_CHR_AC_INTRA, SE_CHR_AC_INTER + * TYPE_EOS | SE_EOS +*/ + +#define SE_HEADER 0 +#define SE_PTYPE 1 +#define SE_MBTYPE 2 +#define SE_REFFRAME 3 +#define SE_INTRAPREDMODE 4 +#define SE_MVD 5 +#define SE_CBP_INTRA 6 +#define SE_LUM_DC_INTRA 7 +#define SE_CHR_DC_INTRA 8 +#define SE_LUM_AC_INTRA 9 +#define SE_CHR_AC_INTRA 10 +#define SE_CBP_INTER 11 +#define SE_LUM_DC_INTER 12 +#define SE_CHR_DC_INTER 13 +#define SE_LUM_AC_INTER 14 +#define SE_CHR_AC_INTER 15 +#define SE_DELTA_QUANT_INTER 16 +#define SE_DELTA_QUANT_INTRA 17 +#define SE_BFRAME 18 +#define SE_EOS 19 +#define SE_MAX_ELEMENTS 20 + + +#define NO_EC 0 //!< no error concealment necessary +#define EC_REQ 1 //!< error concealment required +#define EC_SYNC 2 //!< search and sync on next header element + +#define MAXPARTITIONMODES 2 //!< maximum possible partition modes as defined in assignSE2partition[][] + +/*! + * \brief lookup-table to assign different elements to partition + * + * \note here we defined up to 6 different partitions similar to + * document Q15-k-18 described in the PROGFRAMEMODE. + * The Sliceheader contains the PSYNC information. \par + * + * Elements inside a partition are not ordered. They are + * ordered by occurence in the stream. + * Assumption: Only partitionlosses are considered. \par + * + * The texture elements luminance and chrominance are + * not ordered in the progressive form + * This may be changed in image.c \par + * + * We also defined the proposed internet partition mode + * of Stephan Wenger here. To select the desired mode + * uncomment one of the two following lines. \par + * + * -IMPORTANT: + * Picture- or Sliceheaders must be assigned to partition 0. \par + * Furthermore partitions must follow syntax dependencies as + * outlined in document Q15-J-23. + */ + + +static const byte assignSE2partition[][SE_MAX_ELEMENTS] = +{ + // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 // element number (do not uncomment) + { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, //!< all elements in one partition no data partitioning + { 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 2, 2, 2, 2, 0, 0, 0, 0 } //!< three partitions per slice +}; + + +#endif + |