/***************************************************************************** * * XVID MPEG-4 VIDEO CODEC * - Encoder main module - * * This program is an implementation of a part of one or more MPEG-4 * Video tools as specified in ISO/IEC 14496-2 standard. Those intending * to use this software module in hardware or software products are * advised that its use may infringe existing patents or copyrights, and * any such use would be at such party's own risk. The original * developer of this software module and his/her company, and subsequent * editors and their companies, will have no liability for use of this * software or modifications or derivatives thereof. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * $Id: encoder.c,v 1.98 2003-04-08 11:04:06 syskin Exp $ * ****************************************************************************/ #include #include #include #include #include "encoder.h" #include "prediction/mbprediction.h" #include "global.h" #include "utils/timer.h" #include "image/image.h" #include "image/font.h" #include "motion/sad.h" #include "motion/motion.h" #include "bitstream/cbp.h" #include "utils/mbfunctions.h" #include "bitstream/bitstream.h" #include "bitstream/mbcoding.h" #include "utils/ratecontrol.h" #include "utils/emms.h" #include "bitstream/mbcoding.h" #include "quant/adapt_quant.h" #include "quant/quant_matrix.h" #include "utils/mem_align.h" /***************************************************************************** * Local macros ****************************************************************************/ #define ENC_CHECK(X) if(!(X)) return XVID_ERR_FORMAT #define SWAP(_T_,A,B) { _T_ tmp = A; A = B; B = tmp; } /***************************************************************************** * Local function prototypes ****************************************************************************/ static int FrameCodeI(Encoder * pEnc, Bitstream * bs, uint32_t * pBits); static int FrameCodeP(Encoder * pEnc, Bitstream * bs, uint32_t * pBits, bool force_inter, bool vol_header); static void FrameCodeB(Encoder * pEnc, FRAMEINFO * frame, Bitstream * bs, uint32_t * pBits); /***************************************************************************** * Local data ****************************************************************************/ static int DQtab[4] = { -1, -2, 1, 2 }; static int iDQtab[5] = { 1, 0, NO_CHANGE, 2, 3 }; /***************************************************************************** * Encoder creation * * This function creates an Encoder instance, it allocates all necessary * image buffers (reference, current and bframes) and initialize the internal * xvid encoder paremeters according to the XVID_ENC_PARAM input parameter. * * The code seems to be very long but is very basic, mainly memory allocation * and cleaning code. * * Returned values : * - XVID_ERR_OK - no errors * - XVID_ERR_MEMORY - the libc could not allocate memory, the function * cleans the structure before exiting. * pParam->handle is also set to NULL. * ****************************************************************************/ int encoder_create(XVID_ENC_PARAM * pParam) { Encoder *pEnc; int i; pParam->handle = NULL; ENC_CHECK(pParam); ENC_CHECK(pParam->width > 0 && pParam->width <= 1920); ENC_CHECK(pParam->height > 0 && pParam->height <= 1280); ENC_CHECK(!(pParam->width % 2)); ENC_CHECK(!(pParam->height % 2)); /* Fps */ if (pParam->fincr <= 0 || pParam->fbase <= 0) { pParam->fincr = 1; pParam->fbase = 25; } /* * Simplify the "fincr/fbase" fraction * (neccessary, since windows supplies us with huge numbers) */ i = pParam->fincr; while (i > 1) { if (pParam->fincr % i == 0 && pParam->fbase % i == 0) { pParam->fincr /= i; pParam->fbase /= i; i = pParam->fincr; continue; } i--; } if (pParam->fbase > 65535) { float div = (float) pParam->fbase / 65535; pParam->fbase = (int) (pParam->fbase / div); pParam->fincr = (int) (pParam->fincr / div); } /* Bitrate allocator defaults */ if (pParam->rc_bitrate <= 0) pParam->rc_bitrate = 900000; if (pParam->rc_reaction_delay_factor <= 0) pParam->rc_reaction_delay_factor = 16; if (pParam->rc_averaging_period <= 0) pParam->rc_averaging_period = 100; if (pParam->rc_buffer <= 0) pParam->rc_buffer = 100; /* Max and min quantizers */ if ((pParam->min_quantizer <= 0) || (pParam->min_quantizer > 31)) pParam->min_quantizer = 1; if ((pParam->max_quantizer <= 0) || (pParam->max_quantizer > 31)) pParam->max_quantizer = 31; if (pParam->max_quantizer < pParam->min_quantizer) pParam->max_quantizer = pParam->min_quantizer; /* 1 keyframe each 10 seconds */ if (pParam->max_key_interval <= 0) pParam->max_key_interval = 10 * pParam->fincr / pParam->fbase; pEnc = (Encoder *) xvid_malloc(sizeof(Encoder), CACHE_LINE); if (pEnc == NULL) return XVID_ERR_MEMORY; /* Zero the Encoder Structure */ memset(pEnc, 0, sizeof(Encoder)); /* Fill members of Encoder structure */ pEnc->mbParam.width = pParam->width; pEnc->mbParam.height = pParam->height; pEnc->mbParam.mb_width = (pEnc->mbParam.width + 15) / 16; pEnc->mbParam.mb_height = (pEnc->mbParam.height + 15) / 16; pEnc->mbParam.edged_width = 16 * pEnc->mbParam.mb_width + 2 * EDGE_SIZE; pEnc->mbParam.edged_height = 16 * pEnc->mbParam.mb_height + 2 * EDGE_SIZE; pEnc->mbParam.fbase = pParam->fbase; pEnc->mbParam.fincr = pParam->fincr; pEnc->mbParam.m_quant_type = H263_QUANT; pEnc->fMvPrevSigma = -1; /* Fill rate control parameters */ pEnc->bitrate = pParam->rc_bitrate; pEnc->iFrameNum = -1; pEnc->mbParam.iMaxKeyInterval = pParam->max_key_interval; /* try to allocate frame memory */ pEnc->current = xvid_malloc(sizeof(FRAMEINFO), CACHE_LINE); pEnc->reference = xvid_malloc(sizeof(FRAMEINFO), CACHE_LINE); if (pEnc->current == NULL || pEnc->reference == NULL) goto xvid_err_memory1; /* try to allocate mb memory */ pEnc->current->mbs = xvid_malloc(sizeof(MACROBLOCK) * pEnc->mbParam.mb_width * pEnc->mbParam.mb_height, CACHE_LINE); pEnc->reference->mbs = xvid_malloc(sizeof(MACROBLOCK) * pEnc->mbParam.mb_width * pEnc->mbParam.mb_height, CACHE_LINE); if (pEnc->current->mbs == NULL || pEnc->reference->mbs == NULL) goto xvid_err_memory2; /* try to allocate image memory */ if (pParam->global & XVID_GLOBAL_EXTRASTATS) image_null(&pEnc->sOriginal); image_null(&pEnc->f_refh); image_null(&pEnc->f_refv); image_null(&pEnc->f_refhv); image_null(&pEnc->current->image); image_null(&pEnc->reference->image); image_null(&pEnc->vInterH); image_null(&pEnc->vInterV); image_null(&pEnc->vInterVf); image_null(&pEnc->vInterHV); image_null(&pEnc->vInterHVf); if (pParam->global & XVID_GLOBAL_EXTRASTATS) { if (image_create (&pEnc->sOriginal, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height) < 0) goto xvid_err_memory3; } if (image_create (&pEnc->f_refh, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height) < 0) goto xvid_err_memory3; if (image_create (&pEnc->f_refv, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height) < 0) goto xvid_err_memory3; if (image_create (&pEnc->f_refhv, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height) < 0) goto xvid_err_memory3; if (image_create (&pEnc->current->image, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height) < 0) goto xvid_err_memory3; if (image_create (&pEnc->reference->image, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height) < 0) goto xvid_err_memory3; if (image_create (&pEnc->vInterH, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height) < 0) goto xvid_err_memory3; if (image_create (&pEnc->vInterV, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height) < 0) goto xvid_err_memory3; if (image_create (&pEnc->vInterVf, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height) < 0) goto xvid_err_memory3; if (image_create (&pEnc->vInterHV, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height) < 0) goto xvid_err_memory3; if (image_create (&pEnc->vInterHVf, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height) < 0) goto xvid_err_memory3; /* Create full bitplane for GMC, this might be wasteful */ if (image_create (&pEnc->vGMC, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height) < 0) goto xvid_err_memory3; pEnc->mbParam.global = pParam->global; /* B Frames specific init */ pEnc->mbParam.max_bframes = pParam->max_bframes; pEnc->mbParam.bquant_ratio = pParam->bquant_ratio; pEnc->mbParam.bquant_offset = pParam->bquant_offset; pEnc->mbParam.frame_drop_ratio = pParam->frame_drop_ratio; pEnc->bframes = NULL; if (pEnc->mbParam.max_bframes > 0) { int n; pEnc->bframes = xvid_malloc(pEnc->mbParam.max_bframes * sizeof(FRAMEINFO *), CACHE_LINE); if (pEnc->bframes == NULL) goto xvid_err_memory3; for (n = 0; n < pEnc->mbParam.max_bframes; n++) pEnc->bframes[n] = NULL; for (n = 0; n < pEnc->mbParam.max_bframes; n++) { pEnc->bframes[n] = xvid_malloc(sizeof(FRAMEINFO), CACHE_LINE); if (pEnc->bframes[n] == NULL) goto xvid_err_memory4; pEnc->bframes[n]->mbs = xvid_malloc(sizeof(MACROBLOCK) * pEnc->mbParam.mb_width * pEnc->mbParam.mb_height, CACHE_LINE); if (pEnc->bframes[n]->mbs == NULL) goto xvid_err_memory4; image_null(&pEnc->bframes[n]->image); if (image_create (&pEnc->bframes[n]->image, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height) < 0) goto xvid_err_memory4; } } pEnc->bframenum_head = 0; pEnc->bframenum_tail = 0; pEnc->flush_bframes = 0; pEnc->bframenum_dx50bvop = -1; pEnc->queue = NULL; if (pEnc->mbParam.max_bframes > 0) { int n; pEnc->queue = xvid_malloc(pEnc->mbParam.max_bframes * sizeof(IMAGE), CACHE_LINE); if (pEnc->queue == NULL) goto xvid_err_memory4; for (n = 0; n < pEnc->mbParam.max_bframes; n++) image_null(&pEnc->queue[n]); for (n = 0; n < pEnc->mbParam.max_bframes; n++) { if (image_create (&pEnc->queue[n], pEnc->mbParam.edged_width, pEnc->mbParam.edged_height) < 0) goto xvid_err_memory5; } } pEnc->queue_head = 0; pEnc->queue_tail = 0; pEnc->queue_size = 0; pEnc->mbParam.m_stamp = 0; pEnc->m_framenum = 0; pEnc->current->stamp = 0; pEnc->reference->stamp = 0; pParam->handle = (void *) pEnc; if (pParam->rc_bitrate) { RateControlInit(&pEnc->rate_control, pParam->rc_bitrate, pParam->rc_reaction_delay_factor, pParam->rc_averaging_period, pParam->rc_buffer, pParam->fbase * 1000 / pParam->fincr, pParam->max_quantizer, pParam->min_quantizer); } init_timer(); return XVID_ERR_OK; /* * We handle all XVID_ERR_MEMORY here, this makes the code lighter */ xvid_err_memory5: if (pEnc->mbParam.max_bframes > 0) { for (i = 0; i < pEnc->mbParam.max_bframes; i++) { image_destroy(&pEnc->queue[i], pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); } xvid_free(pEnc->queue); } xvid_err_memory4: if (pEnc->mbParam.max_bframes > 0) { for (i = 0; i < pEnc->mbParam.max_bframes; i++) { if (pEnc->bframes[i] == NULL) continue; image_destroy(&pEnc->bframes[i]->image, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); xvid_free(pEnc->bframes[i]->mbs); xvid_free(pEnc->bframes[i]); } xvid_free(pEnc->bframes); } xvid_err_memory3: if (pEnc->mbParam.global & XVID_GLOBAL_EXTRASTATS) { image_destroy(&pEnc->sOriginal, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); } image_destroy(&pEnc->f_refh, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); image_destroy(&pEnc->f_refv, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); image_destroy(&pEnc->f_refhv, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); image_destroy(&pEnc->current->image, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); image_destroy(&pEnc->reference->image, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); image_destroy(&pEnc->vInterH, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); image_destroy(&pEnc->vInterV, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); image_destroy(&pEnc->vInterVf, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); image_destroy(&pEnc->vInterHV, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); image_destroy(&pEnc->vInterHVf, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); /* destroy GMC image */ image_destroy(&pEnc->vGMC, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); xvid_err_memory2: xvid_free(pEnc->current->mbs); xvid_free(pEnc->reference->mbs); xvid_err_memory1: xvid_free(pEnc->current); xvid_free(pEnc->reference); xvid_free(pEnc); pParam->handle = NULL; return XVID_ERR_MEMORY; } /***************************************************************************** * Encoder destruction * * This function destroy the entire encoder structure created by a previous * successful encoder_create call. * * Returned values (for now only one returned value) : * - XVID_ERR_OK - no errors * ****************************************************************************/ int encoder_destroy(Encoder * pEnc) { int i; ENC_CHECK(pEnc); /* B Frames specific */ if (pEnc->mbParam.max_bframes > 0) { for (i = 0; i < pEnc->mbParam.max_bframes; i++) { image_destroy(&pEnc->queue[i], pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); } xvid_free(pEnc->queue); } if (pEnc->mbParam.max_bframes > 0) { for (i = 0; i < pEnc->mbParam.max_bframes; i++) { if (pEnc->bframes[i] == NULL) continue; image_destroy(&pEnc->bframes[i]->image, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); xvid_free(pEnc->bframes[i]->mbs); xvid_free(pEnc->bframes[i]); } xvid_free(pEnc->bframes); } /* All images, reference, current etc ... */ image_destroy(&pEnc->current->image, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); image_destroy(&pEnc->reference->image, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); image_destroy(&pEnc->vInterH, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); image_destroy(&pEnc->vInterV, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); image_destroy(&pEnc->vInterVf, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); image_destroy(&pEnc->vInterHV, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); image_destroy(&pEnc->vInterHVf, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); image_destroy(&pEnc->f_refh, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); image_destroy(&pEnc->f_refv, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); image_destroy(&pEnc->f_refhv, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); if (pEnc->mbParam.global & XVID_GLOBAL_EXTRASTATS) { image_destroy(&pEnc->sOriginal, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); } /* Encoder structure */ xvid_free(pEnc->current->mbs); xvid_free(pEnc->current); xvid_free(pEnc->reference->mbs); xvid_free(pEnc->reference); xvid_free(pEnc); return XVID_ERR_OK; } static __inline void inc_frame_num(Encoder * pEnc) { pEnc->current->stamp = pEnc->mbParam.m_stamp; /* first frame is zero */ pEnc->mbParam.m_stamp += pEnc->mbParam.fincr; } static __inline void queue_image(Encoder * pEnc, XVID_ENC_FRAME * pFrame) { if (pEnc->queue_size >= pEnc->mbParam.max_bframes) { DPRINTF(DPRINTF_DEBUG,"FATAL: QUEUE FULL"); return; } DPRINTF(DPRINTF_DEBUG,"*** QUEUE bf: head=%i tail=%i queue: head=%i tail=%i size=%i", pEnc->bframenum_head, pEnc->bframenum_tail, pEnc->queue_head, pEnc->queue_tail, pEnc->queue_size); start_timer(); if (image_input (&pEnc->queue[pEnc->queue_tail], pEnc->mbParam.width, pEnc->mbParam.height, pEnc->mbParam.edged_width, pFrame->image, pFrame->stride, pFrame->colorspace, pFrame->general & XVID_INTERLACING)) return; stop_conv_timer(); if ((pFrame->general & XVID_CHROMAOPT)) { image_chroma_optimize(&pEnc->queue[pEnc->queue_tail], pEnc->mbParam.width, pEnc->mbParam.height, pEnc->mbParam.edged_width); } pEnc->queue_size++; pEnc->queue_tail = (pEnc->queue_tail + 1) % pEnc->mbParam.max_bframes; } static __inline void set_timecodes(FRAMEINFO* pCur,FRAMEINFO *pRef, int32_t time_base) { pCur->ticks = (int32_t)pCur->stamp % time_base; pCur->seconds = ((int32_t)pCur->stamp / time_base) - ((int32_t)pRef->stamp / time_base) ; /* HEAVY DEBUG OUTPUT remove when timecodes prove to be stable */ /* fprintf(stderr,"WriteVop: %d - %d \n", ((int32_t)pCur->stamp / time_base), ((int32_t)pRef->stamp / time_base)); fprintf(stderr,"set_timecodes: VOP %1d stamp=%lld ref_stamp=%lld base=%d\n", pCur->coding_type, pCur->stamp, pRef->stamp, time_base); fprintf(stderr,"set_timecodes: VOP %1d seconds=%d ticks=%d (ref-sec=%d ref-tick=%d)\n", pCur->coding_type, pCur->seconds, pCur->ticks, pRef->seconds, pRef->ticks); */ } /* convert pFrame->intra to coding_type */ static int intra2coding_type(int intra) { if (intra < 0) return -1; if (intra == 1) return I_VOP; if (intra == 2) return B_VOP; return P_VOP; } /***************************************************************************** * IPB frame encoder entry point * * Returned values : * - XVID_ERR_OK - no errors * - XVID_ERR_FORMAT - the image subsystem reported the image had a wrong * format ****************************************************************************/ int encoder_encode_bframes(Encoder * pEnc, XVID_ENC_FRAME * pFrame, XVID_ENC_STATS * pResult) { uint16_t x, y; Bitstream bs; uint32_t bits; int mode = -1; /* Just to shut up compiler warning */ int input_valid = 1; int bframes_count = 0; ENC_CHECK(pEnc); ENC_CHECK(pFrame); ENC_CHECK(pFrame->image); start_global_timer(); BitstreamInit(&bs, pFrame->bitstream, 0); ipvop_loop: /* * bframe "flush" code */ if ((pFrame->image == NULL || pEnc->flush_bframes) && (pEnc->bframenum_head < pEnc->bframenum_tail)) { if (pEnc->flush_bframes == 0) { /* * we have reached the end of stream without getting * a future reference frame... so encode last final * frame as a pframe */ DPRINTF(DPRINTF_DEBUG,"*** BFRAME (final frame) bf: head=%i tail=%i queue: head=%i tail=%i size=%i", pEnc->bframenum_head, pEnc->bframenum_tail, pEnc->queue_head, pEnc->queue_tail, pEnc->queue_size); pEnc->bframenum_tail--; SWAP(FRAMEINFO *, pEnc->current, pEnc->reference); SWAP(FRAMEINFO *, pEnc->current, pEnc->bframes[pEnc->bframenum_tail]); FrameCodeP(pEnc, &bs, &bits, 1, 0); bframes_count = 0; BitstreamPadAlways(&bs); pFrame->length = BitstreamLength(&bs); pFrame->intra = 0; emms(); if (pResult) { pResult->quant = pEnc->current->quant; pResult->hlength = pFrame->length - (pEnc->current->sStat.iTextBits / 8); pResult->kblks = pEnc->current->sStat.kblks; pResult->mblks = pEnc->current->sStat.mblks; pResult->ublks = pEnc->current->sStat.ublks; } return XVID_ERR_OK; } DPRINTF(DPRINTF_DEBUG,"*** BFRAME (flush) bf: head=%i tail=%i queue: head=%i tail=%i size=%i", pEnc->bframenum_head, pEnc->bframenum_tail, pEnc->queue_head, pEnc->queue_tail, pEnc->queue_size); FrameCodeB(pEnc, pEnc->bframes[pEnc->bframenum_head], &bs, &bits); pEnc->bframenum_head++; BitstreamPadAlways(&bs); pFrame->length = BitstreamLength(&bs); pFrame->intra = 2; if (pResult) { pResult->quant = pEnc->current->quant; pResult->hlength = pFrame->length - (pEnc->current->sStat.iTextBits / 8); pResult->kblks = pEnc->current->sStat.kblks; pResult->mblks = pEnc->current->sStat.mblks; pResult->ublks = pEnc->current->sStat.ublks; } emms(); if (pFrame->quant == 0) { RateControlUpdate(&pEnc->rate_control, pEnc->current->quant, pFrame->length, pFrame->intra); } if (input_valid) queue_image(pEnc, pFrame); emms(); return XVID_ERR_OK; } if (pEnc->bframenum_head > 0) { pEnc->bframenum_head = pEnc->bframenum_tail = 0; /* write an empty marker to the bitstream. for divx5 decoder compatibility, this marker must consist of a not-coded p-vop, with a time_base of zero, and time_increment indentical to the future-referece frame. */ if ((pEnc->mbParam.global & XVID_GLOBAL_PACKED)) { int tmp; DPRINTF(DPRINTF_DEBUG,"*** EMPTY bf: head=%i tail=%i queue: head=%i tail=%i size=%i", pEnc->bframenum_head, pEnc->bframenum_tail, pEnc->queue_head, pEnc->queue_tail, pEnc->queue_size); tmp = pEnc->current->seconds; pEnc->current->seconds = 0; /* force time_base = 0 */ BitstreamWriteVopHeader(&bs, &pEnc->mbParam, pEnc->current, 0); pEnc->current->seconds = tmp; BitstreamPadAlways(&bs); pFrame->length = BitstreamLength(&bs); pFrame->intra = 4; if (pResult) { pResult->quant = pEnc->current->quant; pResult->hlength = pFrame->length - (pEnc->current->sStat.iTextBits / 8); pResult->kblks = pEnc->current->sStat.kblks; pResult->mblks = pEnc->current->sStat.mblks; pResult->ublks = pEnc->current->sStat.ublks; } emms(); if (pFrame->quant == 0) { RateControlUpdate(&pEnc->rate_control, pEnc->current->quant, pFrame->length, pFrame->intra); } if (input_valid) queue_image(pEnc, pFrame); emms(); return XVID_ERR_OK; } } bvop_loop: if (pEnc->bframenum_dx50bvop != -1) { SWAP(FRAMEINFO *, pEnc->current, pEnc->reference); SWAP(FRAMEINFO *, pEnc->current, pEnc->bframes[pEnc->bframenum_dx50bvop]); if ((pEnc->mbParam.global & XVID_GLOBAL_DEBUG)) { image_printf(&pEnc->current->image, pEnc->mbParam.edged_width, pEnc->mbParam.height, 5, 100, "DX50 IVOP"); } if (input_valid) { queue_image(pEnc, pFrame); input_valid = 0; } } else if (input_valid) { SWAP(FRAMEINFO *, pEnc->current, pEnc->reference); start_timer(); if (image_input (&pEnc->current->image, pEnc->mbParam.width, pEnc->mbParam.height, pEnc->mbParam.edged_width, pFrame->image, pFrame->stride, pFrame->colorspace, pFrame->general & XVID_INTERLACING)) { emms(); return XVID_ERR_FORMAT; } stop_conv_timer(); if ((pFrame->general & XVID_CHROMAOPT)) { image_chroma_optimize(&pEnc->current->image, pEnc->mbParam.width, pEnc->mbParam.height, pEnc->mbParam.edged_width); } /* queue input frame, and dequue next image */ if (pEnc->queue_size > 0) { image_swap(&pEnc->current->image, &pEnc->queue[pEnc->queue_tail]); if (pEnc->queue_head != pEnc->queue_tail) { image_swap(&pEnc->current->image, &pEnc->queue[pEnc->queue_head]); } pEnc->queue_head = (pEnc->queue_head + 1) % pEnc->mbParam.max_bframes; pEnc->queue_tail = (pEnc->queue_tail + 1) % pEnc->mbParam.max_bframes; } } else if (pEnc->queue_size > 0) { SWAP(FRAMEINFO *, pEnc->current, pEnc->reference); image_swap(&pEnc->current->image, &pEnc->queue[pEnc->queue_head]); pEnc->queue_head = (pEnc->queue_head + 1) % pEnc->mbParam.max_bframes; pEnc->queue_size--; } else { /* if nothing was encoded, write an 'ignore this frame' flag to the bitstream */ if (BitstreamPos(&bs) == 0) { DPRINTF(DPRINTF_DEBUG,"*** SKIP bf: head=%i tail=%i queue: head=%i tail=%i size=%i", pEnc->bframenum_head, pEnc->bframenum_tail, pEnc->queue_head, pEnc->queue_tail, pEnc->queue_size); /* That disabled line of code was supposed to inform VirtualDub * that the frame was a dummy delay frame - now disabled (thx god :-) */ //BitstreamPutBits(&bs, 0x7f, 8); pFrame->intra = 5; if (pResult) { /* * We must decide what to put there because i know some apps * are storing statistics about quantizers and just do * stats[quant]++ or stats[quant-1]++ * transcode is one of these app with its 2pass module */ /* * For now i prefer 31 than 0 that could lead to a segfault * in transcode */ pResult->quant = 31; pResult->hlength = 0; pResult->kblks = 0; pResult->mblks = 0; pResult->ublks = 0; } } else { if (pResult) { pResult->quant = pEnc->current->quant; pResult->hlength = pFrame->length - (pEnc->current->sStat.iTextBits / 8); pResult->kblks = pEnc->current->sStat.kblks; pResult->mblks = pEnc->current->sStat.mblks; pResult->ublks = pEnc->current->sStat.ublks; } } pFrame->length = BitstreamLength(&bs); emms(); return XVID_ERR_OK; } pEnc->flush_bframes = 0; emms(); /* only inc frame num, adapt quant, etc. if we havent seen it before */ if (pEnc->bframenum_dx50bvop < 0 ) { mode = intra2coding_type(pFrame->intra); if (pFrame->quant == 0) pEnc->current->quant = RateControlGetQ(&pEnc->rate_control, 0); else pEnc->current->quant = pFrame->quant; /* if (pEnc->current->quant < 1) pEnc->current->quant = 1; if (pEnc->current->quant > 31) pEnc->current->quant = 31; */ pEnc->current->global_flags = pFrame->general; pEnc->current->motion_flags = pFrame->motion; /* ToDo : dynamic fcode (in both directions) */ pEnc->current->fcode = pEnc->mbParam.m_fcode; pEnc->current->bcode = pEnc->mbParam.m_fcode; inc_frame_num(pEnc); if (pFrame->general & XVID_EXTRASTATS) { image_copy(&pEnc->sOriginal, &pEnc->current->image, pEnc->mbParam.edged_width, pEnc->mbParam.height); } emms(); if ((pEnc->mbParam.global & XVID_GLOBAL_DEBUG)) { image_printf(&pEnc->current->image, pEnc->mbParam.edged_width, pEnc->mbParam.height, 5, 5, "%i if:%i st:%i", pEnc->m_framenum++, pEnc->iFrameNum, pEnc->current->stamp); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% * Luminance masking * %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% */ if ((pEnc->current->global_flags & XVID_LUMIMASKING)) { int *temp_dquants = (int *) xvid_malloc(pEnc->mbParam.mb_width * pEnc->mbParam.mb_height * sizeof(int), CACHE_LINE); pEnc->current->quant = adaptive_quantization(pEnc->current->image.y, pEnc->mbParam.edged_width, temp_dquants, pEnc->current->quant, pEnc->current->quant, 2 * pEnc->current->quant, pEnc->mbParam.mb_width, pEnc->mbParam.mb_height); for (y = 0; y < pEnc->mbParam.mb_height; y++) { #define OFFSET(x,y) ((x) + (y)*pEnc->mbParam.mb_width) for (x = 0; x < pEnc->mbParam.mb_width; x++) { MACROBLOCK *pMB = &pEnc->current->mbs[OFFSET(x, y)]; pMB->dquant = iDQtab[temp_dquants[OFFSET(x, y)] + 2]; } #undef OFFSET } xvid_free(temp_dquants); } } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% * ivop/pvop/bvop selection * %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% */ pEnc->iFrameNum++; if (pEnc->iFrameNum == 0 || pEnc->bframenum_dx50bvop >= 0 || (mode < 0 && pEnc->mbParam.iMaxKeyInterval > 0 && pEnc->iFrameNum >= pEnc->mbParam.iMaxKeyInterval)) { mode = I_VOP; } else { mode = MEanalysis(&pEnc->reference->image, pEnc->current, &pEnc->mbParam, pEnc->mbParam.iMaxKeyInterval, (/*mode < 0*/1/*hack*/) ? pEnc->iFrameNum : 0, bframes_count++, 0 /*pFrame->bframe_threshold*/); } if (mode == I_VOP) { /* * This will be coded as an Intra Frame */ if ((pEnc->current->global_flags & XVID_QUARTERPEL)) pEnc->mbParam.m_quarterpel = 1; else pEnc->mbParam.m_quarterpel = 0; if (pEnc->current->global_flags & XVID_MPEGQUANT) pEnc->mbParam.m_quant_type = MPEG4_QUANT; if ((pEnc->current->global_flags & XVID_CUSTOM_QMATRIX) > 0) { if (pFrame->quant_intra_matrix != NULL) set_intra_matrix(pFrame->quant_intra_matrix); if (pFrame->quant_inter_matrix != NULL) set_inter_matrix(pFrame->quant_inter_matrix); } DPRINTF(DPRINTF_DEBUG,"*** IFRAME bf: head=%i tail=%i queue: head=%i tail=%i size=%i", pEnc->bframenum_head, pEnc->bframenum_tail, pEnc->queue_head, pEnc->queue_tail, pEnc->queue_size); if ((pEnc->mbParam.global & XVID_GLOBAL_DEBUG)) { image_printf(&pEnc->current->image, pEnc->mbParam.edged_width, pEnc->mbParam.height, 5, 200, "IVOP"); } /* when we reach an iframe in DX50BVOP mode, encode the last bframe as a pframe */ if ((pEnc->mbParam.global & XVID_GLOBAL_DX50BVOP) && pEnc->bframenum_tail > 0) { pEnc->bframenum_tail--; pEnc->bframenum_dx50bvop = pEnc->bframenum_tail; SWAP(FRAMEINFO *, pEnc->current, pEnc->bframes[pEnc->bframenum_dx50bvop]); if ((pEnc->mbParam.global & XVID_GLOBAL_DEBUG)) { image_printf(&pEnc->current->image, pEnc->mbParam.edged_width, pEnc->mbParam.height, 5, 100, "DX50 BVOP->PVOP"); } FrameCodeP(pEnc, &bs, &bits, 1, 0); bframes_count = 0; pFrame->intra = 0; } else { FrameCodeI(pEnc, &bs, &bits); bframes_count = 0; pFrame->intra = 1; pEnc->bframenum_dx50bvop = -1; } pEnc->flush_bframes = 1; if ((pEnc->mbParam.global & XVID_GLOBAL_PACKED) && pEnc->bframenum_tail > 0) { BitstreamPadAlways(&bs); input_valid = 0; goto ipvop_loop; } /* * NB : sequences like "IIBB" decode fine with msfdam but, * go screwy with divx 5.00 */ } else if (mode == P_VOP || mode == S_VOP || pEnc->bframenum_tail >= pEnc->mbParam.max_bframes) { /* * This will be coded as a Predicted Frame */ DPRINTF(DPRINTF_DEBUG,"*** PFRAME bf: head=%i tail=%i queue: head=%i tail=%i size=%i", pEnc->bframenum_head, pEnc->bframenum_tail, pEnc->queue_head, pEnc->queue_tail, pEnc->queue_size); if ((pEnc->mbParam.global & XVID_GLOBAL_DEBUG)) { image_printf(&pEnc->current->image, pEnc->mbParam.edged_width, pEnc->mbParam.height, 5, 200, "PVOP"); } FrameCodeP(pEnc, &bs, &bits, 1, 0); bframes_count = 0; pFrame->intra = 0; pEnc->flush_bframes = 1; if ((pEnc->mbParam.global & XVID_GLOBAL_PACKED) && (pEnc->bframenum_tail > 0)) { BitstreamPadAlways(&bs); input_valid = 0; goto ipvop_loop; } } else { /* mode == B_VOP */ /* * This will be coded as a Bidirectional Frame */ if ((pEnc->mbParam.global & XVID_GLOBAL_DEBUG)) { image_printf(&pEnc->current->image, pEnc->mbParam.edged_width, pEnc->mbParam.height, 5, 200, "BVOP"); } if (pFrame->bquant < 1) { pEnc->current->quant = ((((pEnc->reference->quant + pEnc->current->quant) * pEnc->mbParam.bquant_ratio) / 2) + pEnc->mbParam.bquant_offset)/100; } else { pEnc->current->quant = pFrame->bquant; } if (pEnc->current->quant < 1) pEnc->current->quant = 1; else if (pEnc->current->quant > 31) pEnc->current->quant = 31; DPRINTF(DPRINTF_DEBUG,"*** BFRAME (store) bf: head=%i tail=%i queue: head=%i tail=%i size=%i quant=%i\n", pEnc->bframenum_head, pEnc->bframenum_tail, pEnc->queue_head, pEnc->queue_tail, pEnc->queue_size,pEnc->current->quant); /* store frame into bframe buffer & swap ref back to current */ SWAP(FRAMEINFO *, pEnc->current, pEnc->bframes[pEnc->bframenum_tail]); SWAP(FRAMEINFO *, pEnc->current, pEnc->reference); pEnc->bframenum_tail++; /* bframe report by koepi */ pFrame->intra = 2; pFrame->length = 0; input_valid = 0; goto bvop_loop; } BitstreamPadAlways(&bs); pFrame->length = BitstreamLength(&bs); if (pResult) { pResult->quant = pEnc->current->quant; pResult->hlength = pFrame->length - (pEnc->current->sStat.iTextBits / 8); pResult->kblks = pEnc->current->sStat.kblks; pResult->mblks = pEnc->current->sStat.mblks; pResult->ublks = pEnc->current->sStat.ublks; if (pFrame->general & XVID_EXTRASTATS) { pResult->sse_y = plane_sse( pEnc->sOriginal.y, pEnc->current->image.y, pEnc->mbParam.edged_width, pEnc->mbParam.width, pEnc->mbParam.height); pResult->sse_u = plane_sse( pEnc->sOriginal.u, pEnc->current->image.u, pEnc->mbParam.edged_width/2, pEnc->mbParam.width/2, pEnc->mbParam.height/2); pResult->sse_v = plane_sse( pEnc->sOriginal.v, pEnc->current->image.v, pEnc->mbParam.edged_width/2, pEnc->mbParam.width/2, pEnc->mbParam.height/2); } } emms(); if (pFrame->quant == 0) { RateControlUpdate(&pEnc->rate_control, pEnc->current->quant, pFrame->length, pFrame->intra); } stop_global_timer(); write_timer(); emms(); return XVID_ERR_OK; } /***************************************************************************** * "original" IP frame encoder entry point * * Returned values : * - XVID_ERR_OK - no errors * - XVID_ERR_FORMAT - the image subsystem reported the image had a wrong * format ****************************************************************************/ int encoder_encode(Encoder * pEnc, XVID_ENC_FRAME * pFrame, XVID_ENC_STATS * pResult) { uint16_t x, y; Bitstream bs; uint32_t bits; uint16_t write_vol_header = 0; float psnr; char temp[128]; start_global_timer(); ENC_CHECK(pEnc); ENC_CHECK(pFrame); ENC_CHECK(pFrame->bitstream); ENC_CHECK(pFrame->image); SWAP(FRAMEINFO *, pEnc->current, pEnc->reference); pEnc->current->global_flags = pFrame->general; pEnc->current->motion_flags = pFrame->motion; pEnc->mbParam.hint = &pFrame->hint; inc_frame_num(pEnc); /* disable alternate scan flag if interlacing is not enabled */ if ((pEnc->current->global_flags & XVID_ALTERNATESCAN) && !(pEnc->current->global_flags & XVID_INTERLACING)) { pEnc->current->global_flags -= XVID_ALTERNATESCAN; } start_timer(); if (image_input (&pEnc->current->image, pEnc->mbParam.width, pEnc->mbParam.height, pEnc->mbParam.edged_width, pFrame->image, pFrame->stride, pFrame->colorspace, pFrame->general & XVID_INTERLACING) < 0) return XVID_ERR_FORMAT; stop_conv_timer(); if ((pFrame->general & XVID_CHROMAOPT)) { image_chroma_optimize(&pEnc->current->image, pEnc->mbParam.width, pEnc->mbParam.height, pEnc->mbParam.edged_width); } if (pFrame->general & XVID_EXTRASTATS) { image_copy(&pEnc->sOriginal, &pEnc->current->image, pEnc->mbParam.edged_width, pEnc->mbParam.height); } emms(); BitstreamInit(&bs, pFrame->bitstream, 0); if (pFrame->quant == 0) { pEnc->current->quant = RateControlGetQ(&pEnc->rate_control, 0); } else { pEnc->current->quant = pFrame->quant; } if ((pEnc->current->global_flags & XVID_QUARTERPEL)) pEnc->mbParam.m_quarterpel = 1; else pEnc->mbParam.m_quarterpel = 0; if ((pEnc->current->global_flags & XVID_LUMIMASKING)) { int *temp_dquants = (int *) xvid_malloc(pEnc->mbParam.mb_width * pEnc->mbParam.mb_height * sizeof(int), CACHE_LINE); pEnc->current->quant = adaptive_quantization(pEnc->current->image.y, pEnc->mbParam.edged_width, temp_dquants, pEnc->current->quant, pEnc->current->quant, 2 * pEnc->current->quant, pEnc->mbParam.mb_width, pEnc->mbParam.mb_height); for (y = 0; y < pEnc->mbParam.mb_height; y++) { #define OFFSET(x,y) ((x) + (y)*pEnc->mbParam.mb_width) for (x = 0; x < pEnc->mbParam.mb_width; x++) { MACROBLOCK *pMB = &pEnc->current->mbs[OFFSET(x, y)]; pMB->dquant = iDQtab[temp_dquants[OFFSET(x, y)] + 2]; } #undef OFFSET } xvid_free(temp_dquants); } if (pEnc->current->global_flags & XVID_H263QUANT) { if (pEnc->mbParam.m_quant_type != H263_QUANT) write_vol_header = 1; pEnc->mbParam.m_quant_type = H263_QUANT; } else if (pEnc->current->global_flags & XVID_MPEGQUANT) { int matrix1_changed, matrix2_changed; matrix1_changed = matrix2_changed = 0; if (pEnc->mbParam.m_quant_type != MPEG4_QUANT) write_vol_header = 1; pEnc->mbParam.m_quant_type = MPEG4_QUANT; if ((pEnc->current->global_flags & XVID_CUSTOM_QMATRIX) > 0) { if (pFrame->quant_intra_matrix != NULL) matrix1_changed = set_intra_matrix(pFrame->quant_intra_matrix); if (pFrame->quant_inter_matrix != NULL) matrix2_changed = set_inter_matrix(pFrame->quant_inter_matrix); } else { matrix1_changed = set_intra_matrix(get_default_intra_matrix()); matrix2_changed = set_inter_matrix(get_default_inter_matrix()); } if (write_vol_header == 0) write_vol_header = matrix1_changed | matrix2_changed; } if (pFrame->intra < 0) { if ((pEnc->iFrameNum == -1) || ((pEnc->mbParam.iMaxKeyInterval > 0) && (pEnc->iFrameNum >= pEnc->mbParam.iMaxKeyInterval))) { pFrame->intra = FrameCodeI(pEnc, &bs, &bits); } else { pFrame->intra = FrameCodeP(pEnc, &bs, &bits, 0, write_vol_header); } } else { if (pFrame->intra == 1) { pFrame->intra = FrameCodeI(pEnc, &bs, &bits); } else { pFrame->intra = FrameCodeP(pEnc, &bs, &bits, 1, write_vol_header); } } /* Relic from OpenDivX - now disabled BitstreamPutBits(&bs, 0xFFFF, 16); BitstreamPutBits(&bs, 0xFFFF, 16); */ BitstreamPadAlways(&bs); pFrame->length = BitstreamLength(&bs); if (pResult) { pResult->quant = pEnc->current->quant; pResult->hlength = pFrame->length - (pEnc->current->sStat.iTextBits / 8); pResult->kblks = pEnc->current->sStat.kblks; pResult->mblks = pEnc->current->sStat.mblks; pResult->ublks = pEnc->current->sStat.ublks; } emms(); if (pFrame->quant == 0) { RateControlUpdate(&pEnc->rate_control, pEnc->current->quant, pFrame->length, pFrame->intra); } if (pFrame->general & XVID_EXTRASTATS) { psnr = image_psnr(&pEnc->sOriginal, &pEnc->current->image, pEnc->mbParam.edged_width, pEnc->mbParam.width, pEnc->mbParam.height); snprintf(temp, 127, "PSNR: %f\n", psnr); } pEnc->iFrameNum++; stop_global_timer(); write_timer(); return XVID_ERR_OK; } static __inline void CodeIntraMB(Encoder * pEnc, MACROBLOCK * pMB) { pMB->mode = MODE_INTRA; /* zero mv statistics */ pMB->mvs[0].x = pMB->mvs[1].x = pMB->mvs[2].x = pMB->mvs[3].x = 0; pMB->mvs[0].y = pMB->mvs[1].y = pMB->mvs[2].y = pMB->mvs[3].y = 0; pMB->sad8[0] = pMB->sad8[1] = pMB->sad8[2] = pMB->sad8[3] = 0; pMB->sad16 = 0; if ((pEnc->current->global_flags & XVID_LUMIMASKING)) { if (pMB->dquant != NO_CHANGE) { pMB->mode = MODE_INTRA_Q; pEnc->current->quant += DQtab[pMB->dquant]; if (pEnc->current->quant > 31) pEnc->current->quant = 31; if (pEnc->current->quant < 1) pEnc->current->quant = 1; } } pMB->quant = pEnc->current->quant; } #define FCODEBITS 3 #define MODEBITS 5 void HintedMESet(Encoder * pEnc, int *intra) { HINTINFO *hint; Bitstream bs; int length, high; uint32_t x, y; hint = pEnc->mbParam.hint; if (hint->rawhints) { *intra = hint->mvhint.intra; } else { BitstreamInit(&bs, hint->hintstream, hint->hintlength); *intra = BitstreamGetBit(&bs); } if (*intra) { return; } pEnc->current->fcode = (hint->rawhints) ? (uint32_t)hint->mvhint.fcode : BitstreamGetBits(&bs, FCODEBITS); length = pEnc->current->fcode + 5; high = 1 << (length - 1); for (y = 0; y < pEnc->mbParam.mb_height; ++y) { for (x = 0; x < pEnc->mbParam.mb_width; ++x) { MACROBLOCK *pMB = &pEnc->current->mbs[x + y * pEnc->mbParam.mb_width]; MVBLOCKHINT *bhint = &hint->mvhint.block[x + y * pEnc->mbParam.mb_width]; VECTOR pred; VECTOR tmp; int vec; pMB->mode = (hint->rawhints) ? (uint32_t)bhint->mode : BitstreamGetBits(&bs, MODEBITS); pMB->mode = (pMB->mode == MODE_INTER_Q) ? MODE_INTER : pMB->mode; pMB->mode = (pMB->mode == MODE_INTRA_Q) ? MODE_INTRA : pMB->mode; if (pMB->mode == MODE_INTER) { tmp.x = (hint->rawhints) ? bhint->mvs[0].x : (int)BitstreamGetBits(&bs, length); tmp.y = (hint->rawhints) ? bhint->mvs[0].y : (int)BitstreamGetBits(&bs, length); tmp.x -= (tmp.x >= high) ? high * 2 : 0; tmp.y -= (tmp.y >= high) ? high * 2 : 0; pred = get_pmv2(pEnc->current->mbs,pEnc->mbParam.mb_width,0,x,y,0); for (vec = 0; vec < 4; ++vec) { pMB->mvs[vec].x = tmp.x; pMB->mvs[vec].y = tmp.y; pMB->pmvs[vec].x = pMB->mvs[0].x - pred.x; pMB->pmvs[vec].y = pMB->mvs[0].y - pred.y; } } else if (pMB->mode == MODE_INTER4V) { for (vec = 0; vec < 4; ++vec) { tmp.x = (hint->rawhints) ? bhint->mvs[vec].x : (int)BitstreamGetBits(&bs, length); tmp.y = (hint->rawhints) ? bhint->mvs[vec].y : (int)BitstreamGetBits(&bs, length); tmp.x -= (tmp.x >= high) ? high * 2 : 0; tmp.y -= (tmp.y >= high) ? high * 2 : 0; pred = get_pmv2(pEnc->current->mbs,pEnc->mbParam.mb_width,0,x,y,vec); pMB->mvs[vec].x = tmp.x; pMB->mvs[vec].y = tmp.y; pMB->pmvs[vec].x = pMB->mvs[vec].x - pred.x; pMB->pmvs[vec].y = pMB->mvs[vec].y - pred.y; } } else /* intra / stuffing / not_coded */ { for (vec = 0; vec < 4; ++vec) { pMB->mvs[vec].x = pMB->mvs[vec].y = 0; } } if (pMB->mode == MODE_INTER4V && (pEnc->current->global_flags & XVID_LUMIMASKING) && pMB->dquant != NO_CHANGE) { pMB->mode = MODE_INTRA; for (vec = 0; vec < 4; ++vec) { pMB->mvs[vec].x = pMB->mvs[vec].y = 0; } } } } } void HintedMEGet(Encoder * pEnc, int intra) { HINTINFO *hint; Bitstream bs; uint32_t x, y; int length, high; hint = pEnc->mbParam.hint; if (hint->rawhints) { hint->mvhint.intra = intra; } else { BitstreamInit(&bs, hint->hintstream, 0); BitstreamPutBit(&bs, intra); } if (intra) { if (!hint->rawhints) { BitstreamPadAlways(&bs); hint->hintlength = BitstreamLength(&bs); } return; } length = pEnc->current->fcode + 5; high = 1 << (length - 1); if (hint->rawhints) { hint->mvhint.fcode = pEnc->current->fcode; } else { BitstreamPutBits(&bs, pEnc->current->fcode, FCODEBITS); } for (y = 0; y < pEnc->mbParam.mb_height; ++y) { for (x = 0; x < pEnc->mbParam.mb_width; ++x) { MACROBLOCK *pMB = &pEnc->current->mbs[x + y * pEnc->mbParam.mb_width]; MVBLOCKHINT *bhint = &hint->mvhint.block[x + y * pEnc->mbParam.mb_width]; VECTOR tmp; if (hint->rawhints) { bhint->mode = pMB->mode; } else { BitstreamPutBits(&bs, pMB->mode, MODEBITS); } if (pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q) { tmp.x = pMB->mvs[0].x; tmp.y = pMB->mvs[0].y; tmp.x += (tmp.x < 0) ? high * 2 : 0; tmp.y += (tmp.y < 0) ? high * 2 : 0; if (hint->rawhints) { bhint->mvs[0].x = tmp.x; bhint->mvs[0].y = tmp.y; } else { BitstreamPutBits(&bs, tmp.x, length); BitstreamPutBits(&bs, tmp.y, length); } } else if (pMB->mode == MODE_INTER4V) { int vec; for (vec = 0; vec < 4; ++vec) { tmp.x = pMB->mvs[vec].x; tmp.y = pMB->mvs[vec].y; tmp.x += (tmp.x < 0) ? high * 2 : 0; tmp.y += (tmp.y < 0) ? high * 2 : 0; if (hint->rawhints) { bhint->mvs[vec].x = tmp.x; bhint->mvs[vec].y = tmp.y; } else { BitstreamPutBits(&bs, tmp.x, length); BitstreamPutBits(&bs, tmp.y, length); } } } } } if (!hint->rawhints) { BitstreamPad(&bs); hint->hintlength = BitstreamLength(&bs); } } static int FrameCodeI(Encoder * pEnc, Bitstream * bs, uint32_t * pBits) { int mb_width = pEnc->mbParam.mb_width; int mb_height = pEnc->mbParam.mb_height; DECLARE_ALIGNED_MATRIX(dct_codes, 6, 64, int16_t, CACHE_LINE); DECLARE_ALIGNED_MATRIX(qcoeff, 6, 64, int16_t, CACHE_LINE); uint16_t x, y; if ((pEnc->current->global_flags & XVID_REDUCED)) { mb_width = (pEnc->mbParam.width + 31) / 32; mb_height = (pEnc->mbParam.height + 31) / 32; /* 16x16->8x8 downsample requires 1 additional edge pixel*/ /* XXX: setedges is overkill */ start_timer(); image_setedges(&pEnc->current->image, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height, pEnc->mbParam.width, pEnc->mbParam.height); stop_edges_timer(); } pEnc->iFrameNum = 0; pEnc->mbParam.m_rounding_type = 1; pEnc->current->rounding_type = pEnc->mbParam.m_rounding_type; pEnc->current->quarterpel = pEnc->mbParam.m_quarterpel; pEnc->current->coding_type = I_VOP; BitstreamWriteVolHeader(bs, &pEnc->mbParam, pEnc->current); set_timecodes(pEnc->current,pEnc->reference,pEnc->mbParam.fbase); BitstreamPadAlways(bs); BitstreamWriteVopHeader(bs, &pEnc->mbParam, pEnc->current, 1); *pBits = BitstreamPos(bs); pEnc->current->sStat.iTextBits = 0; pEnc->current->sStat.kblks = mb_width * mb_height; pEnc->current->sStat.mblks = pEnc->current->sStat.ublks = 0; for (y = 0; y < mb_height; y++) for (x = 0; x < mb_width; x++) { MACROBLOCK *pMB = &pEnc->current->mbs[x + y * pEnc->mbParam.mb_width]; CodeIntraMB(pEnc, pMB); MBTransQuantIntra(&pEnc->mbParam, pEnc->current, pMB, x, y, dct_codes, qcoeff); start_timer(); MBPrediction(pEnc->current, x, y, pEnc->mbParam.mb_width, qcoeff); stop_prediction_timer(); start_timer(); if (pEnc->current->global_flags & XVID_GREYSCALE) { pMB->cbp &= 0x3C; /* keep only bits 5-2 */ qcoeff[4*64+0]=0; /* zero, because for INTRA MBs DC value is saved */ qcoeff[5*64+0]=0; } MBCoding(pEnc->current, pMB, qcoeff, bs, &pEnc->current->sStat); stop_coding_timer(); } if ((pEnc->current->global_flags & XVID_REDUCED)) { image_deblock_rrv(&pEnc->current->image, pEnc->mbParam.edged_width, pEnc->current->mbs, mb_width, mb_height, pEnc->mbParam.mb_width, 16, XVID_DEC_DEBLOCKY|XVID_DEC_DEBLOCKUV); } emms(); *pBits = BitstreamPos(bs) - *pBits; pEnc->fMvPrevSigma = -1; pEnc->mbParam.m_fcode = 2; if (pEnc->current->global_flags & XVID_HINTEDME_GET) { HintedMEGet(pEnc, 1); } return 1; /* intra */ } #define INTRA_THRESHOLD 0.5 #define BFRAME_SKIP_THRESHHOLD 30 /* FrameCodeP also handles S(GMC)-VOPs */ static int FrameCodeP(Encoder * pEnc, Bitstream * bs, uint32_t * pBits, bool force_inter, bool vol_header) { float fSigma; DECLARE_ALIGNED_MATRIX(dct_codes, 6, 64, int16_t, CACHE_LINE); DECLARE_ALIGNED_MATRIX(qcoeff, 6, 64, int16_t, CACHE_LINE); int mb_width = pEnc->mbParam.mb_width; int mb_height = pEnc->mbParam.mb_height; int iLimit; int x, y, k; int iSearchRange; int bIntra, skip_possible; /* IMAGE *pCurrent = &pEnc->current->image; */ IMAGE *pRef = &pEnc->reference->image; if ((pEnc->current->global_flags & XVID_REDUCED)) { mb_width = (pEnc->mbParam.width + 31) / 32; mb_height = (pEnc->mbParam.height + 31) / 32; } start_timer(); image_setedges(pRef, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height, pEnc->mbParam.width, pEnc->mbParam.height); stop_edges_timer(); pEnc->mbParam.m_rounding_type = 1 - pEnc->mbParam.m_rounding_type; pEnc->current->rounding_type = pEnc->mbParam.m_rounding_type; pEnc->current->quarterpel = pEnc->mbParam.m_quarterpel; pEnc->current->fcode = pEnc->mbParam.m_fcode; if (!force_inter) iLimit = (int)(mb_width * mb_height * INTRA_THRESHOLD); else iLimit = mb_width * mb_height + 1; if ((pEnc->current->global_flags & XVID_HALFPEL)) { start_timer(); image_interpolate(pRef, &pEnc->vInterH, &pEnc->vInterV, &pEnc->vInterHV, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height, pEnc->mbParam.m_quarterpel, pEnc->current->rounding_type); stop_inter_timer(); } pEnc->current->coding_type = P_VOP; start_timer(); if (pEnc->current->global_flags & XVID_HINTEDME_SET) HintedMESet(pEnc, &bIntra); else bIntra = MotionEstimation(&pEnc->mbParam, pEnc->current, pEnc->reference, &pEnc->vInterH, &pEnc->vInterV, &pEnc->vInterHV, iLimit); stop_motion_timer(); if (bIntra == 1) return FrameCodeI(pEnc, bs, pBits); if ( ( pEnc->current->global_flags & XVID_GMC ) && ( (pEnc->current->warp.duv[1].x != 0) || (pEnc->current->warp.duv[1].y != 0) ) ) { pEnc->current->coding_type = S_VOP; generate_GMCparameters( 2, 16, &pEnc->current->warp, pEnc->mbParam.width, pEnc->mbParam.height, &pEnc->current->gmc_data); generate_GMCimage(&pEnc->current->gmc_data, &pEnc->reference->image, pEnc->mbParam.mb_width, pEnc->mbParam.mb_height, pEnc->mbParam.edged_width, pEnc->mbParam.edged_width/2, pEnc->mbParam.m_fcode, pEnc->mbParam.m_quarterpel, 0, pEnc->current->rounding_type, pEnc->current->mbs, &pEnc->vGMC); } set_timecodes(pEnc->current,pEnc->reference,pEnc->mbParam.fbase); if (vol_header) { BitstreamWriteVolHeader(bs, &pEnc->mbParam, pEnc->current); BitstreamPadAlways(bs); } BitstreamWriteVopHeader(bs, &pEnc->mbParam, pEnc->current, 1); *pBits = BitstreamPos(bs); pEnc->current->sStat.iTextBits = pEnc->current->sStat.iMvSum = pEnc->current->sStat.iMvCount = pEnc->current->sStat.kblks = pEnc->current->sStat.mblks = pEnc->current->sStat.ublks = 0; for (y = 0; y < mb_height; y++) { for (x = 0; x < mb_width; x++) { MACROBLOCK *pMB = &pEnc->current->mbs[x + y * pEnc->mbParam.mb_width]; /* Mode decision: Check, if the block should be INTRA / INTER or GMC-coded */ /* For a start, leave INTRA decision as is, only choose only between INTER/GMC - gruel, 9.1.2002 */ bIntra = (pMB->mode == MODE_INTRA) || (pMB->mode == MODE_INTRA_Q); if (bIntra) { CodeIntraMB(pEnc, pMB); MBTransQuantIntra(&pEnc->mbParam, pEnc->current, pMB, x, y, dct_codes, qcoeff); start_timer(); MBPrediction(pEnc->current, x, y, pEnc->mbParam.mb_width, qcoeff); stop_prediction_timer(); pEnc->current->sStat.kblks++; MBCoding(pEnc->current, pMB, qcoeff, bs, &pEnc->current->sStat); stop_coding_timer(); continue; } if (pEnc->current->coding_type == S_VOP) { int32_t iSAD = sad16(pEnc->current->image.y + 16*y*pEnc->mbParam.edged_width + 16*x, pEnc->vGMC.y + 16*y*pEnc->mbParam.edged_width + 16*x, pEnc->mbParam.edged_width, 65536); if (pEnc->current->motion_flags & PMV_CHROMA16) { iSAD += sad8(pEnc->current->image.u + 8*y*(pEnc->mbParam.edged_width/2) + 8*x, pEnc->vGMC.u + 8*y*(pEnc->mbParam.edged_width/2) + 8*x, pEnc->mbParam.edged_width/2); iSAD += sad8(pEnc->current->image.v + 8*y*(pEnc->mbParam.edged_width/2) + 8*x, pEnc->vGMC.v + 8*y*(pEnc->mbParam.edged_width/2) + 8*x, pEnc->mbParam.edged_width/2); } if (iSAD <= pMB->sad16) { /* mode decision GMC */ if (pEnc->mbParam.m_quarterpel) pMB->qmvs[0] = pMB->qmvs[1] = pMB->qmvs[2] = pMB->qmvs[3] = pMB->amv; else pMB->mvs[0] = pMB->mvs[1] = pMB->mvs[2] = pMB->mvs[3] = pMB->amv; pMB->mode = MODE_INTER; pMB->mcsel = 1; pMB->sad16 = iSAD; } else { pMB->mcsel = 0; } } else { pMB->mcsel = 0; /* just a precaution */ } start_timer(); MBMotionCompensation(pMB, x, y, &pEnc->reference->image, &pEnc->vInterH, &pEnc->vInterV, &pEnc->vInterHV, &pEnc->vGMC, &pEnc->current->image, dct_codes, pEnc->mbParam.width, pEnc->mbParam.height, pEnc->mbParam.edged_width, pEnc->mbParam.m_quarterpel, (pEnc->current->global_flags & XVID_REDUCED), pEnc->current->rounding_type); stop_comp_timer(); if ((pEnc->current->global_flags & XVID_LUMIMASKING)) { if (pMB->dquant != NO_CHANGE) { pMB->mode = MODE_INTER_Q; pEnc->current->quant += DQtab[pMB->dquant]; if (pEnc->current->quant > 31) pEnc->current->quant = 31; else if (pEnc->current->quant < 1) pEnc->current->quant = 1; } } pMB->quant = pEnc->current->quant; pMB->field_pred = 0; if (pMB->mode != MODE_NOT_CODED) { pMB->cbp = MBTransQuantInter(&pEnc->mbParam, pEnc->current, pMB, x, y, dct_codes, qcoeff); } if (pMB->cbp || pMB->mvs[0].x || pMB->mvs[0].y || pMB->mvs[1].x || pMB->mvs[1].y || pMB->mvs[2].x || pMB->mvs[2].y || pMB->mvs[3].x || pMB->mvs[3].y) { pEnc->current->sStat.mblks++; } else { pEnc->current->sStat.ublks++; } start_timer(); /* Finished processing the MB, now check if to CODE or SKIP */ skip_possible = (pMB->cbp == 0) && (pMB->mode == MODE_INTER) && (pMB->dquant == NO_CHANGE); if (pEnc->current->coding_type == S_VOP) skip_possible &= (pMB->mcsel == 1); else if (pEnc->current->coding_type == P_VOP) { if (pEnc->mbParam.m_quarterpel) skip_possible &= ( (pMB->qmvs[0].x == 0) && (pMB->qmvs[0].y == 0) ); else skip_possible &= ( (pMB->mvs[0].x == 0) && (pMB->mvs[0].y == 0) ); } if ( (pMB->mode == MODE_NOT_CODED) || (skip_possible)) { /* This is a candidate for SKIPping, but for P-VOPs check intermediate B-frames first */ if (pEnc->current->coding_type == P_VOP) /* special rule for P-VOP's SKIP */ { int bSkip = 1; for (k=pEnc->bframenum_head; k< pEnc->bframenum_tail; k++) { int iSAD; iSAD = sad16(pEnc->reference->image.y + 16*y*pEnc->mbParam.edged_width + 16*x, pEnc->bframes[k]->image.y + 16*y*pEnc->mbParam.edged_width + 16*x, pEnc->mbParam.edged_width,BFRAME_SKIP_THRESHHOLD); if (iSAD >= BFRAME_SKIP_THRESHHOLD * pMB->quant) { bSkip = 0; break; } } if (!bSkip) { /* no SKIP, but trivial block */ if(pEnc->mbParam.m_quarterpel) { VECTOR predMV = get_qpmv2(pEnc->current->mbs, pEnc->mbParam.mb_width, 0, x, y, 0); pMB->pmvs[0].x = - predMV.x; pMB->pmvs[0].y = - predMV.y; } else { VECTOR predMV = get_pmv2(pEnc->current->mbs, pEnc->mbParam.mb_width, 0, x, y, 0); pMB->pmvs[0].x = - predMV.x; pMB->pmvs[0].y = - predMV.y; } pMB->mode = MODE_INTER; pMB->cbp = 0; MBCoding(pEnc->current, pMB, qcoeff, bs, &pEnc->current->sStat); stop_coding_timer(); continue; /* next MB */ } } /* do SKIP */ pMB->mode = MODE_NOT_CODED; MBSkip(bs); stop_coding_timer(); continue; /* next MB */ } /* ordinary case: normal coded INTER/INTER4V block */ if (pEnc->current->global_flags & XVID_GREYSCALE) { pMB->cbp &= 0x3C; /* keep only bits 5-2 */ qcoeff[4*64+0]=0; /* zero, because DC for INTRA MBs DC value is saved */ qcoeff[5*64+0]=0; } if(pEnc->mbParam.m_quarterpel) { VECTOR predMV = get_qpmv2(pEnc->current->mbs, pEnc->mbParam.mb_width, 0, x, y, 0); pMB->pmvs[0].x = pMB->qmvs[0].x - predMV.x; pMB->pmvs[0].y = pMB->qmvs[0].y - predMV.y; DPRINTF(DPRINTF_MV,"mv_diff (%i,%i) pred (%i,%i) result (%i,%i)", pMB->pmvs[0].x, pMB->pmvs[0].y, predMV.x, predMV.y, pMB->mvs[0].x, pMB->mvs[0].y); } else { VECTOR predMV = get_pmv2(pEnc->current->mbs, pEnc->mbParam.mb_width, 0, x, y, 0); pMB->pmvs[0].x = pMB->mvs[0].x - predMV.x; pMB->pmvs[0].y = pMB->mvs[0].y - predMV.y; DPRINTF(DPRINTF_MV,"mv_diff (%i,%i) pred (%i,%i) result (%i,%i)", pMB->pmvs[0].x, pMB->pmvs[0].y, predMV.x, predMV.y, pMB->mvs[0].x, pMB->mvs[0].y); } if (pMB->mode == MODE_INTER4V) { int k; for (k=1;k<4;k++) { if(pEnc->mbParam.m_quarterpel) { VECTOR predMV = get_qpmv2(pEnc->current->mbs, pEnc->mbParam.mb_width, 0, x, y, k); pMB->pmvs[k].x = pMB->qmvs[k].x - predMV.x; pMB->pmvs[k].y = pMB->qmvs[k].y - predMV.y; DPRINTF(DPRINTF_MV,"mv_diff (%i,%i) pred (%i,%i) result (%i,%i)", pMB->pmvs[k].x, pMB->pmvs[k].y, predMV.x, predMV.y, pMB->mvs[k].x, pMB->mvs[k].y); } else { VECTOR predMV = get_pmv2(pEnc->current->mbs, pEnc->mbParam.mb_width, 0, x, y, k); pMB->pmvs[k].x = pMB->mvs[k].x - predMV.x; pMB->pmvs[k].y = pMB->mvs[k].y - predMV.y; DPRINTF(DPRINTF_MV,"mv_diff (%i,%i) pred (%i,%i) result (%i,%i)", pMB->pmvs[k].x, pMB->pmvs[k].y, predMV.x, predMV.y, pMB->mvs[k].x, pMB->mvs[k].y); } } } MBCoding(pEnc->current, pMB, qcoeff, bs, &pEnc->current->sStat); stop_coding_timer(); } } if ((pEnc->current->global_flags & XVID_REDUCED)) { image_deblock_rrv(&pEnc->current->image, pEnc->mbParam.edged_width, pEnc->current->mbs, mb_width, mb_height, pEnc->mbParam.mb_width, 16, XVID_DEC_DEBLOCKY|XVID_DEC_DEBLOCKUV); } emms(); if (pEnc->current->global_flags & XVID_HINTEDME_GET) { HintedMEGet(pEnc, 0); } if (pEnc->current->sStat.iMvCount == 0) pEnc->current->sStat.iMvCount = 1; fSigma = (float) sqrt((float) pEnc->current->sStat.iMvSum / pEnc->current->sStat.iMvCount); iSearchRange = 1 << (3 + pEnc->mbParam.m_fcode); if ((fSigma > iSearchRange / 3) && (pEnc->mbParam.m_fcode <= (3 + pEnc->mbParam.m_quarterpel))) /* maximum search range 128 */ { pEnc->mbParam.m_fcode++; iSearchRange *= 2; } else if ((fSigma < iSearchRange / 6) && (pEnc->fMvPrevSigma >= 0) && (pEnc->fMvPrevSigma < iSearchRange / 6) && (pEnc->mbParam.m_fcode >= (2 + pEnc->mbParam.m_quarterpel))) /* minimum search range 16 */ { pEnc->mbParam.m_fcode--; iSearchRange /= 2; } pEnc->fMvPrevSigma = fSigma; /* frame drop code */ DPRINTF(DPRINTF_DEBUG, "kmu %i %i %i", pEnc->current->sStat.kblks, pEnc->current->sStat.mblks, pEnc->current->sStat.ublks); if (pEnc->current->sStat.kblks + pEnc->current->sStat.mblks < (pEnc->mbParam.frame_drop_ratio * mb_width * mb_height) / 100) { pEnc->current->sStat.kblks = pEnc->current->sStat.mblks = 0; pEnc->current->sStat.ublks = mb_width * mb_height; BitstreamReset(bs); set_timecodes(pEnc->current,pEnc->reference,pEnc->mbParam.fbase); BitstreamWriteVopHeader(bs, &pEnc->mbParam, pEnc->current, 0); /* copy reference frame details into the current frame */ pEnc->current->quant = pEnc->reference->quant; pEnc->current->motion_flags = pEnc->reference->motion_flags; pEnc->current->rounding_type = pEnc->reference->rounding_type; pEnc->current->quarterpel = pEnc->reference->quarterpel; pEnc->current->fcode = pEnc->reference->fcode; pEnc->current->bcode = pEnc->reference->bcode; image_copy(&pEnc->current->image, &pEnc->reference->image, pEnc->mbParam.edged_width, pEnc->mbParam.height); memcpy(pEnc->current->mbs, pEnc->reference->mbs, sizeof(MACROBLOCK) * mb_width * mb_height); } /* XXX: debug { char s[100]; sprintf(s, "\\%05i_cur.pgm", pEnc->m_framenum); image_dump_yuvpgm(&pEnc->current->image, pEnc->mbParam.edged_width, pEnc->mbParam.width, pEnc->mbParam.height, s); sprintf(s, "\\%05i_ref.pgm", pEnc->m_framenum); image_dump_yuvpgm(&pEnc->reference->image, pEnc->mbParam.edged_width, pEnc->mbParam.width, pEnc->mbParam.height, s); } */ *pBits = BitstreamPos(bs) - *pBits; return 0; /* inter */ } static void FrameCodeB(Encoder * pEnc, FRAMEINFO * frame, Bitstream * bs, uint32_t * pBits) { DECLARE_ALIGNED_MATRIX(dct_codes, 6, 64, int16_t, CACHE_LINE); DECLARE_ALIGNED_MATRIX(qcoeff, 6, 64, int16_t, CACHE_LINE); uint32_t x, y; IMAGE *f_ref = &pEnc->reference->image; IMAGE *b_ref = &pEnc->current->image; #ifdef BFRAMES_DEC_DEBUG FILE *fp; static char first=0; #define BFRAME_DEBUG if (!first && fp){ \ fprintf(fp,"Y=%3d X=%3d MB=%2d CBP=%02X\n",y,x,mb->mode,mb->cbp); \ } pEnc->current->global_flags &= ~XVID_REDUCED; /* reduced resoltion not yet supported */ if (!first){ fp=fopen("C:\\XVIDDBGE.TXT","w"); } #endif frame->quarterpel = pEnc->mbParam.m_quarterpel; /* forward */ image_setedges(f_ref, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height, pEnc->mbParam.width, pEnc->mbParam.height); start_timer(); image_interpolate(f_ref, &pEnc->f_refh, &pEnc->f_refv, &pEnc->f_refhv, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height, pEnc->mbParam.m_quarterpel, 0); stop_inter_timer(); /* backward */ image_setedges(b_ref, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height, pEnc->mbParam.width, pEnc->mbParam.height); start_timer(); image_interpolate(b_ref, &pEnc->vInterH, &pEnc->vInterV, &pEnc->vInterHV, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height, pEnc->mbParam.m_quarterpel, 0); stop_inter_timer(); start_timer(); MotionEstimationBVOP(&pEnc->mbParam, frame, ((int32_t)(pEnc->current->stamp - frame->stamp)), /* time_bp */ ((int32_t)(pEnc->current->stamp - pEnc->reference->stamp)), /* time_pp */ pEnc->reference->mbs, f_ref, &pEnc->f_refh, &pEnc->f_refv, &pEnc->f_refhv, pEnc->current, b_ref, &pEnc->vInterH, &pEnc->vInterV, &pEnc->vInterHV); stop_motion_timer(); /* if (test_quant_type(&pEnc->mbParam, pEnc->current)) { BitstreamWriteVolHeader(bs, pEnc->mbParam.width, pEnc->mbParam.height, pEnc->mbParam.quant_type); } */ frame->coding_type = B_VOP; set_timecodes(frame, pEnc->reference,pEnc->mbParam.fbase); BitstreamWriteVopHeader(bs, &pEnc->mbParam, frame, 1); *pBits = BitstreamPos(bs); frame->sStat.iTextBits = 0; frame->sStat.iMvSum = 0; frame->sStat.iMvCount = 0; frame->sStat.kblks = frame->sStat.mblks = frame->sStat.ublks = 0; for (y = 0; y < pEnc->mbParam.mb_height; y++) { for (x = 0; x < pEnc->mbParam.mb_width; x++) { MACROBLOCK * const mb = &frame->mbs[x + y * pEnc->mbParam.mb_width]; int direction = pEnc->mbParam.global & XVID_ALTERNATESCAN ? 2 : 0; /* decoder ignores mb when refence block is INTER(0,0), CBP=0 */ if (mb->mode == MODE_NOT_CODED) { /* mb->mvs[0].x = mb->mvs[0].y = mb->cbp = 0; */ continue; } if (mb->mode != MODE_DIRECT_NONE_MV) { MBMotionCompensationBVOP(&pEnc->mbParam, mb, x, y, &frame->image, f_ref, &pEnc->f_refh, &pEnc->f_refv, &pEnc->f_refhv, b_ref, &pEnc->vInterH, &pEnc->vInterV, &pEnc->vInterHV, dct_codes); if (mb->mode == MODE_DIRECT_NO4V) mb->mode = MODE_DIRECT; mb->quant = frame->quant; mb->cbp = MBTransQuantInterBVOP(&pEnc->mbParam, frame, mb, dct_codes, qcoeff); if ( (mb->mode == MODE_DIRECT) && (mb->cbp == 0) && (mb->pmvs[3].x == 0) && (mb->pmvs[3].y == 0) ) { mb->mode = MODE_DIRECT_NONE_MV; /* skipped */ } } #ifdef BFRAMES_DEC_DEBUG BFRAME_DEBUG #endif start_timer(); MBCodingBVOP(mb, qcoeff, frame->fcode, frame->bcode, bs, &frame->sStat, direction); stop_coding_timer(); } } emms(); /* TODO: dynamic fcode/bcode ??? */ *pBits = BitstreamPos(bs) - *pBits; #ifdef BFRAMES_DEC_DEBUG if (!first){ first=1; if (fp) fclose(fp); } #endif }