diff options
Diffstat (limited to 'converter/ppm/ppmtompeg/mheaders.c')
| -rw-r--r-- | converter/ppm/ppmtompeg/mheaders.c | 301 |
1 files changed, 158 insertions, 143 deletions
diff --git a/converter/ppm/ppmtompeg/mheaders.c b/converter/ppm/ppmtompeg/mheaders.c index 98e1b063..54dada83 100644 --- a/converter/ppm/ppmtompeg/mheaders.c +++ b/converter/ppm/ppmtompeg/mheaders.c @@ -1,17 +1,17 @@ /*===========================================================================* - * mheaders.c * - * * - * Procedures to generate MPEG headers * - * * - * EXPORTED PROCEDURES: * - * Mhead_GenPictureHeader * - * Mhead_GenSequenceHeader * - * Mhead_GenSequenceEnder * - * Mhead_GenGOPHeader * - * Mhead_GenSliceHeader * - * Mhead_GenSliceEnder * - * Mhead_GenMBHeader * - * * + * mheaders.c * + * * + * Procedures to generate MPEG headers * + * * + * EXPORTED PROCEDURES: * + * Mhead_GenPictureHeader * + * Mhead_GenSequenceHeader * + * Mhead_GenSequenceEnder * + * Mhead_GenGOPHeader * + * Mhead_GenSliceHeader * + * Mhead_GenSliceEnder * + * Mhead_GenMBHeader * + * * *===========================================================================*/ /* @@ -254,7 +254,7 @@ static uint32 mbPatTable[][2] = { {0x4, 8}, {0x4, 9}, {0x7, 3}, - {0xa, 5}, /* grrr... 61, 62, 63 added - Kevin */ + {0xa, 5}, /* grrr... 61, 62, 63 added - Kevin */ {0x8, 5}, {0xc, 6} }; @@ -270,9 +270,9 @@ static uint32 mbPatTable[][2] = { #define PICT_START_CODE 0x00000100 #define SLICE_BASE_CODE 0x00000100 -#define SEQ_END_CODE 0x000001b7 +#define SEQ_END_CODE 0x000001b7 -/* not static anymore because information is used for computing frame rate +/* not static anymore because information is used for computing frame rate * and for statistics */ const double VidRateNum[9]={1.0, 23.976, 24.0, 25.0, 29.97, 30.0, 50.0 ,59.94, 60.0}; @@ -286,10 +286,10 @@ const double VidRateNum[9]={1.0, 23.976, 24.0, 25.0, 29.97, 30.0, * * GenMBType * - * generate macroblock type with given attributes - * append result to the specified bitstream + * generate macroblock type with given attributes + * append result to the specified bitstream * - * RETURNS: nothing + * RETURNS: nothing * * SIDE EFFECTS: none * @@ -429,14 +429,15 @@ GenMBType(bbPtr, pict_code_type, mb_quant, motion_forw, motion_back, } + /*===========================================================================* * * GenMotionCode * - * generate motion vector output with given value - * append result to the specified bitstream + * generate motion vector output with given value + * append result to the specified bitstream * - * RETURNS: nothing + * RETURNS: nothing * * SIDE EFFECTS: none * @@ -459,14 +460,15 @@ GenMotionCode(BitBucket * const bbPtr, } + /*===========================================================================* * * GenBlockPattern * - * generate macroblock pattern output - * append result to the specified bitstream + * generate macroblock pattern output + * append result to the specified bitstream * - * RETURNS: nothing + * RETURNS: nothing * * SIDE EFFECTS: none * @@ -485,14 +487,15 @@ GenBlockPattern(bbPtr, mb_pattern) } + /*===========================================================================* * * GenMBAddrIncr * - * generate macroblock address increment output - * append result to the specified bitstream + * generate macroblock address increment output + * append result to the specified bitstream * - * RETURNS: nothing + * RETURNS: nothing * * SIDE EFFECTS: none * @@ -512,14 +515,15 @@ GenMBAddrIncr(bbPtr, addr_incr) } + /*===========================================================================* * * GenPictHead * - * generate picture header with given attributes - * append result to the specified bitstream + * generate picture header with given attributes + * append result to the specified bitstream * - * RETURNS: nothing + * RETURNS: nothing * * SIDE EFFECTS: none * @@ -557,7 +561,7 @@ GenPictHead(bbPtr, temp_ref, code_type, vbv_delay, full_pel_forw_flag, Bitio_Write(bbPtr, code_type, 3); /* vbv_delay. */ - vbv_delay = 0xffff; /* see page 36 (section 2.4.3.4) */ + vbv_delay = 0xffff; /* see page 36 (section 2.4.3.4) */ Bitio_Write(bbPtr, vbv_delay, 16); if ((code_type == 2) || (code_type == 3)) { @@ -624,6 +628,7 @@ GenPictHead(bbPtr, temp_ref, code_type, vbv_delay, full_pel_forw_flag, } + /*=====================* * EXPORTED PROCEDURES * *=====================*/ @@ -633,9 +638,9 @@ GenPictHead(bbPtr, temp_ref, code_type, vbv_delay, full_pel_forw_flag, * * SetGOPStartTime * - * sets the start frame of the GOP; to be used with GenPictureHeader + * sets the start frame of the GOP; to be used with GenPictureHeader * - * RETURNS: nothing + * RETURNS: nothing * * SIDE EFFECTS: none * @@ -649,14 +654,15 @@ SetGOPStartTime(index) } + /*===========================================================================* * * Mhead_GenPictureHeader * - * generate picture header with given frame type and picture count - * append result to the specified bitstream + * generate picture header with given frame type and picture count + * append result to the specified bitstream * - * RETURNS: nothing + * RETURNS: nothing * * SIDE EFFECTS: none * @@ -668,51 +674,52 @@ Mhead_GenPictureHeader(bbPtr, frameType, pictCount, f_code) int pictCount; int f_code; { - int temporalRef; + int temporalRef; if ( pictCount >= gopStartFrame ) { - temporalRef = (pictCount-gopStartFrame); + temporalRef = (pictCount-gopStartFrame); } else { - temporalRef = (pictCount-lastGOPStart); + temporalRef = (pictCount-lastGOPStart); } temporalRef = (temporalRef % 1024); - + DBG_PRINT(("Picture Header\n")); GenPictHead(bbPtr, temporalRef, frameType, - 0 /* vbv_delay */, - pixelFullSearch /* full_pel_forw_flag */, - f_code /* forw_f_code */, - pixelFullSearch /* full_pel_back_flag */, - f_code /* back_f_code */, - NULL, 0, NULL, 0, NULL, 0); + 0 /* vbv_delay */, + pixelFullSearch /* full_pel_forw_flag */, + f_code /* forw_f_code */, + pixelFullSearch /* full_pel_back_flag */, + f_code /* back_f_code */, + NULL, 0, NULL, 0, NULL, 0); } + /*===========================================================================* * * Mhead_GenSequenceHeader * - * generate sequence header with given attributes - * append result to the specified bitstream + * generate sequence header with given attributes + * append result to the specified bitstream * - * RETURNS: nothing + * RETURNS: nothing * * SIDE EFFECTS: none * *===========================================================================*/ void -Mhead_GenSequenceHeader(BitBucket * const bbPtr, - uint32 const hsize, +Mhead_GenSequenceHeader(BitBucket * const bbPtr, + uint32 const hsize, uint32 const vsize, - int32 const pratio, - int32 const pict_rate, + int32 const pratio, + int32 const pict_rate, int32 const bit_rate_arg, - int32 const buf_size_arg, - int32 const c_param_flag_arg, - const int32 * const iq_matrix, + int32 const buf_size_arg, + int32 const c_param_flag_arg, + const int32 * const iq_matrix, const int32 * const niq_matrix, - uint8 * const ext_data, - int32 const ext_data_size, + uint8 * const ext_data, + int32 const ext_data_size, uint8 * const user_data, int32 const user_data_size) { @@ -774,7 +781,7 @@ Mhead_GenSequenceHeader(BitBucket * const bbPtr, buf_size = buf_size_arg; buf_size = (buf_size + (16*1024 - 1)) / (16*1024); - if (buf_size>=0x400) + if (buf_size>=0x400) buf_size=0x3ff; Bitio_Write(bbPtr, buf_size, 10); @@ -849,14 +856,15 @@ Mhead_GenSequenceHeader(BitBucket * const bbPtr, } + /*===========================================================================* * * Mhead_GenSequenceEnder * - * generate sequence ender - * append result to the specified bitstream + * generate sequence ender + * append result to the specified bitstream * - * RETURNS: nothing + * RETURNS: nothing * * SIDE EFFECTS: none * @@ -869,22 +877,23 @@ Mhead_GenSequenceEnder(bbPtr) } + /*===========================================================================* * * Mhead_GenGOPHeader * - * generate GOP header with specified attributes - * append result to the specified bitstream + * generate GOP header with specified attributes + * append result to the specified bitstream * - * RETURNS: nothing + * RETURNS: nothing * * SIDE EFFECTS: none * *===========================================================================*/ void Mhead_GenGOPHeader(bbPtr, drop_frame_flag, tc_hrs, tc_min, tc_sec, tc_pict, - closed_gop, broken_link, ext_data, ext_data_size, - user_data, user_data_size) + closed_gop, broken_link, ext_data, ext_data_size, + user_data, user_data_size) BitBucket *bbPtr; int32 drop_frame_flag; int32 tc_hrs; @@ -903,13 +912,13 @@ Mhead_GenGOPHeader(bbPtr, drop_frame_flag, tc_hrs, tc_min, tc_sec, tc_pict, /* Write gop start code. */ Bitio_Write(bbPtr, GOP_START_CODE, 32); - /* Construct and write timecode. */ + /* Construct and write timecode. */ /* Drop frame flag. */ if (drop_frame_flag) { - Bitio_Write(bbPtr, 0x01, 1); + Bitio_Write(bbPtr, 0x01, 1); } else { - Bitio_Write(bbPtr, 0x00, 1); + Bitio_Write(bbPtr, 0x00, 1); } /* Time code hours. */ @@ -930,16 +939,16 @@ Mhead_GenGOPHeader(bbPtr, drop_frame_flag, tc_hrs, tc_min, tc_sec, tc_pict, /* Closed gop flag. */ if (closed_gop) { - Bitio_Write(bbPtr, 0x01, 1); + Bitio_Write(bbPtr, 0x01, 1); } else { - Bitio_Write(bbPtr, 0x00, 1); + Bitio_Write(bbPtr, 0x00, 1); } /* Broken link flag. */ if (broken_link) { - Bitio_Write(bbPtr, 0x01, 1); + Bitio_Write(bbPtr, 0x01, 1); } else { - Bitio_Write(bbPtr, 0x00, 1); + Bitio_Write(bbPtr, 0x00, 1); } /* next start code */ @@ -948,33 +957,34 @@ Mhead_GenGOPHeader(bbPtr, drop_frame_flag, tc_hrs, tc_min, tc_sec, tc_pict, /* Write ext data if present. */ if (ext_data != NULL) { - Bitio_Write(bbPtr, EXT_START_CODE, 32); + Bitio_Write(bbPtr, EXT_START_CODE, 32); - for (i = 0; i < ext_data_size; i++) { - Bitio_Write(bbPtr, ext_data[i], 8); - } - Bitio_BytePad(bbPtr); + for (i = 0; i < ext_data_size; i++) { + Bitio_Write(bbPtr, ext_data[i], 8); + } + Bitio_BytePad(bbPtr); } /* Write user data if present. */ if (user_data != NULL) { - Bitio_Write(bbPtr, USER_START_CODE, 32); + Bitio_Write(bbPtr, USER_START_CODE, 32); - for (i = 0; i < user_data_size; i++) { - Bitio_Write(bbPtr, user_data[i], 8); - } - Bitio_BytePad(bbPtr); + for (i = 0; i < user_data_size; i++) { + Bitio_Write(bbPtr, user_data[i], 8); + } + Bitio_BytePad(bbPtr); } } + /*===========================================================================* * * Mhead_GenSliceHeader * - * generate slice header with specified attributes - * append result to the specified bitstream + * generate slice header with specified attributes + * append result to the specified bitstream * - * RETURNS: nothing + * RETURNS: nothing * * SIDE EFFECTS: none * @@ -999,10 +1009,10 @@ Mhead_GenSliceHeader(bbPtr, verticalPos, qscale, extra_info, extra_info_size) /* Extra bit slice info. */ if (extra_info != NULL) { - for (i = 0; i < extra_info_size; i++) { - Bitio_Write(bbPtr, 0x01, 1); - Bitio_Write(bbPtr, extra_info[i], 8); - } + for (i = 0; i < extra_info_size; i++) { + Bitio_Write(bbPtr, 0x01, 1); + Bitio_Write(bbPtr, extra_info[i], 8); + } } /* extra_bit_slice */ @@ -1010,14 +1020,15 @@ Mhead_GenSliceHeader(bbPtr, verticalPos, qscale, extra_info, extra_info_size) } + /*===========================================================================* * * Mhead_GenSliceEnder * - * generate slice ender - * append result to the specified bitstream + * generate slice ender + * append result to the specified bitstream * - * RETURNS: nothing + * RETURNS: nothing * * SIDE EFFECTS: none * @@ -1030,24 +1041,25 @@ Mhead_GenSliceEnder(bbPtr) } + /*===========================================================================* * * Mhead_GenMBHeader * - * generate macroblock header with given attributes - * append result to the specified bitstream + * generate macroblock header with given attributes + * append result to the specified bitstream * - * RETURNS: nothing + * RETURNS: nothing * * SIDE EFFECTS: none * *===========================================================================*/ void Mhead_GenMBHeader(bbPtr, pict_code_type, addr_incr, q_scale, - forw_f_code, back_f_code, horiz_forw_r, vert_forw_r, - horiz_back_r, vert_back_r, motion_forw, m_horiz_forw, - m_vert_forw, motion_back, m_horiz_back, m_vert_back, - mb_pattern, mb_intra) + forw_f_code, back_f_code, horiz_forw_r, vert_forw_r, + horiz_back_r, vert_back_r, motion_forw, m_horiz_forw, + m_vert_forw, motion_back, m_horiz_back, m_vert_back, + mb_pattern, mb_intra) BitBucket *bbPtr; uint32 pict_code_type; uint32 addr_incr; @@ -1077,8 +1089,8 @@ if ( addr_incr != 1 ) #endif while (addr_incr > 33) { - Bitio_Write(bbPtr, 0x008, 11); - addr_incr -= 33; + Bitio_Write(bbPtr, 0x008, 11); + addr_incr -= 33; } /* Generate addr incr code. */ @@ -1098,66 +1110,67 @@ if ( addr_incr != 1 ) /* MB quant. */ if (mb_quant) { - Bitio_Write(bbPtr, q_scale, 5); + Bitio_Write(bbPtr, q_scale, 5); } /* Forward predictive vector stuff. */ if (motion_forw) { - int forw_f, forw_r_size; - - forw_r_size = forw_f_code - 1; - forw_f = 1 << forw_r_size; /* 1 > 0 */ - if ((m_horiz_forw > 16*forw_f-1) || (m_horiz_forw < -16*forw_f)) { - fprintf(stderr, "Illegal motion? %d %d\n", m_horiz_forw, 16*forw_f); - } - if ((m_vert_forw > 16*forw_f-1) || (m_vert_forw < -16*forw_f)) { - fprintf(stderr, "Illegal motion? %d %d\n", m_vert_forw, 16*forw_f); - } - GenMotionCode(bbPtr, m_horiz_forw); - - if ((forw_f != 1) && (m_horiz_forw != 0)) { - Bitio_Write(bbPtr, horiz_forw_r, forw_r_size); - } - GenMotionCode(bbPtr, m_vert_forw); - - if ((forw_f != 1) && (m_vert_forw != 0)) { - Bitio_Write(bbPtr, vert_forw_r, forw_r_size); - } + int forw_f, forw_r_size; + + forw_r_size = forw_f_code - 1; + forw_f = 1 << forw_r_size; /* 1 > 0 */ + if ((m_horiz_forw > 16*forw_f-1) || (m_horiz_forw < -16*forw_f)) { + fprintf(stderr, "Illegal motion? %d %d\n", m_horiz_forw, 16*forw_f); + } + if ((m_vert_forw > 16*forw_f-1) || (m_vert_forw < -16*forw_f)) { + fprintf(stderr, "Illegal motion? %d %d\n", m_vert_forw, 16*forw_f); + } + GenMotionCode(bbPtr, m_horiz_forw); + + if ((forw_f != 1) && (m_horiz_forw != 0)) { + Bitio_Write(bbPtr, horiz_forw_r, forw_r_size); + } + GenMotionCode(bbPtr, m_vert_forw); + + if ((forw_f != 1) && (m_vert_forw != 0)) { + Bitio_Write(bbPtr, vert_forw_r, forw_r_size); + } } /* Back predicted vector stuff. */ if (motion_back) { - int back_f, back_r_size; + int back_f, back_r_size; - back_r_size = back_f_code - 1; - back_f = 1 << back_r_size; /* 1 > 0 */ + back_r_size = back_f_code - 1; + back_f = 1 << back_r_size; /* 1 > 0 */ - if ((m_horiz_back > 16*back_f-1) || (m_horiz_back < -16*back_f)) { - fprintf(stderr, "Illegal motion? %d %d\n", m_horiz_back, 16*back_f); - } - if ((m_vert_back > 16*back_f-1) || (m_vert_back < -16*back_f)) { - fprintf(stderr, "Illegal motion? %d %d\n", m_vert_back, 16*back_f); - } + if ((m_horiz_back > 16*back_f-1) || (m_horiz_back < -16*back_f)) { + fprintf(stderr, "Illegal motion? %d %d\n", m_horiz_back, 16*back_f); + } + if ((m_vert_back > 16*back_f-1) || (m_vert_back < -16*back_f)) { + fprintf(stderr, "Illegal motion? %d %d\n", m_vert_back, 16*back_f); + } - GenMotionCode(bbPtr, m_horiz_back); + GenMotionCode(bbPtr, m_horiz_back); - if ((back_f != 1) && (m_horiz_back != 0)) { - Bitio_Write(bbPtr, horiz_back_r, back_r_size); - } - GenMotionCode(bbPtr, m_vert_back); + if ((back_f != 1) && (m_horiz_back != 0)) { + Bitio_Write(bbPtr, horiz_back_r, back_r_size); + } + GenMotionCode(bbPtr, m_vert_back); - if ((back_f != 1) && (m_vert_back != 0)) { - Bitio_Write(bbPtr, vert_back_r, back_r_size); - } + if ((back_f != 1) && (m_vert_back != 0)) { + Bitio_Write(bbPtr, vert_back_r, back_r_size); + } } /* MB pattern. */ if (mb_pattern) { - GenBlockPattern(bbPtr, mb_pattern); + GenBlockPattern(bbPtr, mb_pattern); } } + #ifdef UNUSED_PROCEDURES /* GenMBEnd only used for `D` pictures. Shouldn't really ever be called. */ @@ -1169,4 +1182,6 @@ GenMBEnd(bbPtr) Bitio_Write(bbPtr, 0x01, 1); } + + #endif /* UNUSED_PROCEDURES */ |