--- encoder.c 2002/03/09 21:44:47 1.4 +++ encoder.c 2003/04/04 03:15:59 1.97 @@ -1,12 +1,48 @@ +/***************************************************************************** + * + * 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 1.97 2003/04/04 03:15:59 Isibaar 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" @@ -16,29 +52,70 @@ #include "bitstream/mbcoding.h" #include "quant/adapt_quant.h" #include "quant/quant_matrix.h" +#include "utils/mem_align.h" -#define ENC_CHECK(X) if(!(X)) return XVID_ERR_FORMAT +/***************************************************************************** + * Local macros + ****************************************************************************/ +#define ENC_CHECK(X) if(!(X)) return XVID_ERR_FORMAT +#define SWAP(_T_,A,B) { _T_ tmp = A; A = B; B = tmp; } -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); +/***************************************************************************** + * 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] = -{ +static int DQtab[4] = { -1, -2, 1, 2 }; -static int iDQtab[5] = -{ +static int iDQtab[5] = { 1, 0, NO_CHANGE, 2, 3 }; -int encoder_create(XVID_ENC_PARAM * pParam) +/***************************************************************************** + * 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; - uint32_t i; - + int i; pParam->handle = NULL; ENC_CHECK(pParam); @@ -48,20 +125,21 @@ ENC_CHECK(!(pParam->width % 2)); ENC_CHECK(!(pParam->height % 2)); - if (pParam->fincr <= 0 || pParam->fbase <= 0) - { + /* 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) + /* + * 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) - { + while (i > 1) { + if (pParam->fincr % i == 0 && pParam->fbase % i == 0) { pParam->fincr /= i; pParam->fbase /= i; i = pParam->fincr; @@ -70,18 +148,28 @@ i--; } - if (pParam->fbase > 65535) - { - float div = (float)pParam->fbase / 65535; - pParam->fbase = (int)(pParam->fbase / div); - pParam->fincr = (int)(pParam->fincr / div); + if (pParam->fbase > 65535) { + float div = (float) pParam->fbase / 65535; + + pParam->fbase = (int) (pParam->fbase / div); + pParam->fincr = (int) (pParam->fincr / div); } - if (pParam->bitrate <= 0) - pParam->bitrate = 900000; + /* 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_buffersize <= 0) - pParam->rc_buffersize = pParam->bitrate * pParam->fbase; + 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; @@ -89,15 +177,22 @@ if ((pParam->max_quantizer <= 0) || (pParam->max_quantizer > 31)) pParam->max_quantizer = 31; - if (pParam->max_key_interval == 0) /* 1 keyframe each 10 seconds */ - pParam->max_key_interval = 10 * pParam->fincr / pParam->fbase; - if (pParam->max_quantizer < pParam->min_quantizer) pParam->max_quantizer = pParam->min_quantizer; - if ((pEnc = (Encoder *) malloc(sizeof(Encoder))) == NULL) + /* 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; @@ -109,453 +204,2018 @@ 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->sStat.fMvPrevSigma = -1; + 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->mbParam.quant = 4; + pEnc->bitrate = pParam->rc_bitrate; - pEnc->bitrate = pParam->bitrate; + pEnc->iFrameNum = -1; + pEnc->mbParam.iMaxKeyInterval = pParam->max_key_interval; - pEnc->iFrameNum = 0; - pEnc->iMaxKeyInterval = pParam->max_key_interval; + /* try to allocate frame memory */ - if (image_create(&pEnc->sCurrent, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height) < 0) - { - free(pEnc); - return XVID_ERR_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; - if (image_create(&pEnc->sReference, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height) < 0) - { - image_destroy(&pEnc->sCurrent, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); - free(pEnc); - return XVID_ERR_MEMORY; + } } - if (image_create(&pEnc->vInterH, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height) < 0) - { - image_destroy(&pEnc->sCurrent, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); - image_destroy(&pEnc->sReference, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); - free(pEnc); - return XVID_ERR_MEMORY; - } + 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; - if (image_create(&pEnc->vInterV, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height) < 0) - { - image_destroy(&pEnc->sCurrent, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); - image_destroy(&pEnc->sReference, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); - image_destroy(&pEnc->vInterH, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); - free(pEnc); - return XVID_ERR_MEMORY; + } } - if (image_create(&pEnc->vInterHV, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height) < 0) - { - image_destroy(&pEnc->sCurrent, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); - image_destroy(&pEnc->sReference, 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); - free(pEnc); - return XVID_ERR_MEMORY; - } + pEnc->queue_head = 0; + pEnc->queue_tail = 0; + pEnc->queue_size = 0; - pEnc->pMBs = malloc(sizeof(MACROBLOCK) * pEnc->mbParam.mb_width * pEnc->mbParam.mb_height); - if (pEnc->pMBs == NULL) - { - image_destroy(&pEnc->sCurrent, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); - image_destroy(&pEnc->sReference, 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->vInterHV, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); - free(pEnc); - return XVID_ERR_MEMORY; - } + pEnc->mbParam.m_stamp = 0; - // init macroblock array - for (i = 0; i < pEnc->mbParam.mb_width * pEnc->mbParam.mb_height; i++) - { - pEnc->pMBs[i].dquant = NO_CHANGE; - } + pEnc->m_framenum = 0; + pEnc->current->stamp = 0; + pEnc->reference->stamp = 0; - pParam->handle = (void *)pEnc; + pParam->handle = (void *) pEnc; - if (pParam->bitrate) - { - RateControlInit(pParam->bitrate, pParam->rc_buffersize, pParam->fbase, pParam->width, - pParam->height, pParam->max_quantizer, pParam->min_quantizer); + 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); } - create_vlc_tables(); + init_timer(); return XVID_ERR_OK; -} + /* + * We handle all XVID_ERR_MEMORY here, this makes the code lighter + */ -int encoder_destroy(Encoder * pEnc) -{ - ENC_CHECK(pEnc); - ENC_CHECK(pEnc->sCurrent.y); - ENC_CHECK(pEnc->sReference.y); + 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); + } - free(pEnc->pMBs); - image_destroy(&pEnc->sCurrent, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); - image_destroy(&pEnc->sReference, 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->vInterHV, pEnc->mbParam.edged_width, pEnc->mbParam.edged_height); - free(pEnc); + xvid_err_memory4: - destroy_vlc_tables(); + if (pEnc->mbParam.max_bframes > 0) { - return XVID_ERR_OK; + 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; } -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; +/***************************************************************************** + * 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 + * + ****************************************************************************/ - start_global_timer(); +int +encoder_destroy(Encoder * pEnc) +{ + int i; ENC_CHECK(pEnc); - ENC_CHECK(pFrame); - ENC_CHECK(pFrame->bitstream); - ENC_CHECK(pFrame->image); - pEnc->mbParam.global_flags = pFrame->general; - pEnc->mbParam.motion_flags = pFrame->motion; + /* B Frames specific */ + if (pEnc->mbParam.max_bframes > 0) { - start_timer(); - if (image_input(&pEnc->sCurrent, pEnc->mbParam.width, pEnc->mbParam.height, pEnc->mbParam.edged_width, - pFrame->image, pFrame->colorspace)) - { - return XVID_ERR_FORMAT; + 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); } - stop_conv_timer(); - BitstreamInit(&bs, pFrame->bitstream, 0); + if (pEnc->mbParam.max_bframes > 0) { - if (pFrame->quant == 0) - { - pEnc->mbParam.quant = RateControlGetQ(0); - } - else - { - pEnc->mbParam.quant = pFrame->quant; - } + for (i = 0; i < pEnc->mbParam.max_bframes; i++) { - if ((pEnc->mbParam.global_flags & XVID_LUMIMASKING) > 0) - { - int * temp_dquants = (int *) malloc(pEnc->mbParam.mb_width * pEnc->mbParam.mb_height * sizeof(int)); - - pEnc->mbParam.quant = adaptive_quantization(pEnc->sCurrent.y, pEnc->mbParam.width, - temp_dquants, pFrame->quant, pFrame->quant, - 2*pFrame->quant, pEnc->mbParam.mb_width, pEnc->mbParam.mb_height); - - for (y = 0; y < pEnc->mbParam.mb_height; y++) - for (x = 0; x < pEnc->mbParam.mb_width; x++) - { - MACROBLOCK *pMB = &pEnc->pMBs[x + y * pEnc->mbParam.mb_width]; - pMB->dquant = iDQtab[(temp_dquants[y * pEnc->mbParam.mb_width + x] + 2)]; - } - free(temp_dquants); - } + if (pEnc->bframes[i] == NULL) + continue; - if(pEnc->mbParam.global_flags & XVID_H263QUANT) { - if(pEnc->mbParam.quant_type != H263_QUANT) - write_vol_header = 1; - pEnc->mbParam.quant_type = H263_QUANT; - } - else if(pEnc->mbParam.global_flags & XVID_MPEGQUANT) { - int ret1, ret2; + image_destroy(&pEnc->bframes[i]->image, pEnc->mbParam.edged_width, + pEnc->mbParam.edged_height); - if(pEnc->mbParam.quant_type != MPEG4_QUANT) - write_vol_header = 1; - - pEnc->mbParam.quant_type = MPEG4_QUANT; - - if ((pEnc->mbParam.global_flags & XVID_CUSTOM_QMATRIX) > 0) { - if(pFrame->quant_intra_matrix != NULL) - ret1 = set_intra_matrix(pFrame->quant_intra_matrix); - if(pFrame->quant_inter_matrix != NULL) - ret2 = set_inter_matrix(pFrame->quant_inter_matrix); - } - else { - ret1 = set_intra_matrix(get_default_intra_matrix()); - ret2 = set_inter_matrix(get_default_inter_matrix()); + xvid_free(pEnc->bframes[i]->mbs); + + xvid_free(pEnc->bframes[i]); } - if(write_vol_header == 0) - write_vol_header = ret1 | ret2; - } - if (pFrame->intra < 0) - { - if ((pEnc->iFrameNum == 0) || ((pEnc->iMaxKeyInterval > 0) - && (pEnc->iFrameNum >= pEnc->iMaxKeyInterval))) + xvid_free(pEnc->bframes); - 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); + + /* 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); } - BitstreamPutBits(&bs, 0xFFFF, 16); - BitstreamPutBits(&bs, 0xFFFF, 16); - BitstreamPad(&bs); - pFrame->length = BitstreamLength(&bs); - - if (pResult) + /* 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) { - pResult->quant = pEnc->mbParam.quant; - pResult->hlength = pFrame->length - (pEnc->sStat.iTextBits / 8); - pResult->kblks = pEnc->sStat.kblks; - pResult->mblks = pEnc->sStat.mblks; - pResult->ublks = pEnc->sStat.ublks; + DPRINTF(DPRINTF_DEBUG,"FATAL: QUEUE FULL"); + return; } - - if (pEnc->bitrate) - { - RateControlUpdate(pEnc->mbParam.quant, pFrame->length, pFrame->intra); + + 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->iFrameNum++; - image_swap(&pEnc->sCurrent, &pEnc->sReference); + 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) ; - stop_global_timer(); - write_timer(); + /* HEAVY DEBUG OUTPUT remove when timecodes prove to be stable */ - return XVID_ERR_OK; -} +/* 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); +*/ +} -static __inline void CodeIntraMB(Encoder *pEnc, MACROBLOCK *pMB) { - pMB->mode = MODE_INTRA; - if ((pEnc->mbParam.global_flags & XVID_LUMIMASKING) > 0) { - if(pMB->dquant != NO_CHANGE) - { - pMB->mode = MODE_INTRA_Q; - pEnc->mbParam.quant += DQtab[pMB->dquant]; - - if (pEnc->mbParam.quant > 31) pEnc->mbParam.quant = 31; - if (pEnc->mbParam.quant < 1) pEnc->mbParam.quant = 1; - } - } +/* 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; - pMB->quant = pEnc->mbParam.quant; + return P_VOP; } -static int FrameCodeI(Encoder * pEnc, Bitstream * bs, uint32_t *pBits) + +/***************************************************************************** + * 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) { - int16_t dct_codes[6][64]; - int16_t qcoeff[6][64]; uint16_t x, y; + Bitstream bs; + uint32_t bits; + int mode = -1; /* Just to shut up compiler warning */ - pEnc->iFrameNum = 0; - pEnc->mbParam.rounding_type = 1; - pEnc->mbParam.coding_type = I_VOP; + int input_valid = 1; + int bframes_count = 0; - BitstreamWriteVolHeader(bs, pEnc->mbParam.width, pEnc->mbParam.height, pEnc->mbParam.quant_type); - BitstreamWriteVopHeader(bs, I_VOP, pEnc->mbParam.rounding_type, - pEnc->mbParam.quant, - pEnc->mbParam.fixed_code); + ENC_CHECK(pEnc); + ENC_CHECK(pFrame); + ENC_CHECK(pFrame->image); - *pBits = BitstreamPos(bs); + start_global_timer(); - pEnc->sStat.iTextBits = 0; - pEnc->sStat.kblks = pEnc->mbParam.mb_width * pEnc->mbParam.mb_height; - pEnc->sStat.mblks = pEnc->sStat.ublks = 0; + BitstreamInit(&bs, pFrame->bitstream, 0); - for (y = 0; y < pEnc->mbParam.mb_height; y++) - for (x = 0; x < pEnc->mbParam.mb_width; x++) - { - MACROBLOCK *pMB = &pEnc->pMBs[x + y * pEnc->mbParam.mb_width]; +ipvop_loop: - CodeIntraMB(pEnc, pMB); + /* + * bframe "flush" code + */ - MBTransQuantIntra(&pEnc->mbParam, x, y, dct_codes, qcoeff, &pEnc->sCurrent); + if ((pFrame->image == NULL || pEnc->flush_bframes) + && (pEnc->bframenum_head < pEnc->bframenum_tail)) { - start_timer(); - MBPrediction(&pEnc->mbParam, x, y, pEnc->mbParam.mb_width, qcoeff, pEnc->pMBs); - stop_prediction_timer(); + 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 + */ - start_timer(); - MBCoding(&pEnc->mbParam, pMB, qcoeff, bs, &pEnc->sStat); - stop_coding_timer(); - } + 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); - emms(); + pEnc->bframenum_tail--; + SWAP(FRAMEINFO *, pEnc->current, pEnc->reference); - *pBits = BitstreamPos(bs) - *pBits; - pEnc->sStat.fMvPrevSigma = -1; - pEnc->sStat.iMvSum = 0; - pEnc->sStat.iMvCount = 0; - pEnc->mbParam.fixed_code = 2; + SWAP(FRAMEINFO *, pEnc->current, pEnc->bframes[pEnc->bframenum_tail]); - return 1; // intra -} + FrameCodeP(pEnc, &bs, &bits, 1, 0); + bframes_count = 0; + BitstreamPadAlways(&bs); + pFrame->length = BitstreamLength(&bs); + pFrame->intra = 0; -#define INTRA_THRESHOLD 0.5 -static int FrameCodeP(Encoder * pEnc, Bitstream * bs, uint32_t *pBits, bool force_inter, bool vol_header) -{ - float fSigma; - int16_t dct_codes[6][64]; - int16_t qcoeff[6][64]; - int iLimit; - uint32_t x, y; - int iSearchRange; - bool bIntra; + emms(); - IMAGE *pCurrent = &pEnc->sCurrent; - IMAGE *pRef = &pEnc->sReference; + 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; + } - image_setedges(pRef,pEnc->mbParam.edged_width, pEnc->mbParam.edged_height, pEnc->mbParam.width, pEnc->mbParam.height); + return XVID_ERR_OK; + } - pEnc->mbParam.rounding_type = 1 - pEnc->mbParam.rounding_type; + + 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; + } - if (!force_inter) - iLimit = (int)(pEnc->mbParam.mb_width * pEnc->mbParam.mb_height * INTRA_THRESHOLD); - else - iLimit = pEnc->mbParam.mb_width * pEnc->mbParam.mb_height + 1; + emms(); - if ((pEnc->mbParam.global_flags & XVID_HALFPEL) > 0) { - start_timer(); - image_interpolate(pRef, &pEnc->vInterH, &pEnc->vInterV, &pEnc->vInterHV, - pEnc->mbParam.edged_width, pEnc->mbParam.edged_height, - pEnc->mbParam.rounding_type); - stop_inter_timer(); + 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; } - start_timer(); - bIntra = MotionEstimation(pEnc->pMBs, &pEnc->mbParam, &pEnc->sReference, - &pEnc->vInterH, &pEnc->vInterV, - &pEnc->vInterHV, &pEnc->sCurrent, iLimit); - stop_motion_timer(); + if (pEnc->bframenum_head > 0) { + pEnc->bframenum_head = pEnc->bframenum_tail = 0; - if (bIntra == 1) - return FrameCodeI(pEnc, bs, pBits); + /* 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. + */ - pEnc->mbParam.coding_type = P_VOP; + if ((pEnc->mbParam.global & XVID_GLOBAL_PACKED)) { + int tmp; - if(vol_header) - BitstreamWriteVolHeader(bs, pEnc->mbParam.width, pEnc->mbParam.height, pEnc->mbParam.quant_type); + 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); - BitstreamWriteVopHeader(bs, P_VOP, pEnc->mbParam.rounding_type, - pEnc->mbParam.quant, - pEnc->mbParam.fixed_code); + tmp = pEnc->current->seconds; + pEnc->current->seconds = 0; /* force time_base = 0 */ - *pBits = BitstreamPos(bs); + 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(); - pEnc->sStat.iTextBits = 0; - pEnc->sStat.iMvSum = 0; - pEnc->sStat.iMvCount = 0; - pEnc->sStat.kblks = pEnc->sStat.mblks = pEnc->sStat.ublks = 0; + return XVID_ERR_OK; + } + } + + +bvop_loop: - for(y = 0; y < pEnc->mbParam.mb_height; y++) + if (pEnc->bframenum_dx50bvop != -1) { - for(x = 0; x < pEnc->mbParam.mb_width; x++) + + 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) { - MACROBLOCK * pMB = &pEnc->pMBs[x + y * pEnc->mbParam.mb_width]; + queue_image(pEnc, pFrame); + input_valid = 0; + } - bIntra = (pMB->mode == MODE_INTRA) || (pMB->mode == MODE_INTRA_Q); + } else if (input_valid) { - if (!bIntra) - { - start_timer(); - MBMotionCompensation(pMB, x, y, &pEnc->sReference, - &pEnc->vInterH, &pEnc->vInterV, - &pEnc->vInterHV, &pEnc->sCurrent, dct_codes, - pEnc->mbParam.width, - pEnc->mbParam.height, - pEnc->mbParam.edged_width, - pEnc->mbParam.rounding_type); - stop_comp_timer(); - - if ((pEnc->mbParam.global_flags & XVID_LUMIMASKING) > 0) { - if(pMB->dquant != NO_CHANGE) { - pMB->mode = MODE_INTER_Q; - pEnc->mbParam.quant += DQtab[pMB->dquant]; - if (pEnc->mbParam.quant > 31) pEnc->mbParam.quant = 31; - else if(pEnc->mbParam.quant < 1) pEnc->mbParam.quant = 1; - } - } - pMB->quant = pEnc->mbParam.quant; + SWAP(FRAMEINFO *, pEnc->current, pEnc->reference); - pMB->cbp = MBTransQuantInter(&pEnc->mbParam, x, y, dct_codes, qcoeff, pCurrent); - } - else - { - CodeIntraMB(pEnc, pMB); - MBTransQuantIntra(&pEnc->mbParam, x, y, dct_codes, qcoeff, pCurrent); - } + 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(); - start_timer(); - MBPrediction(&pEnc->mbParam, x, y, pEnc->mbParam.mb_width, qcoeff, pEnc->pMBs); - stop_prediction_timer(); + if ((pFrame->general & XVID_CHROMAOPT)) { + image_chroma_optimize(&pEnc->current->image, + pEnc->mbParam.width, pEnc->mbParam.height, pEnc->mbParam.edged_width); + } - if (pMB->mode == MODE_INTRA || pMB->mode == MODE_INTRA_Q) + /* 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) { - pEnc->sStat.kblks++; + image_swap(&pEnc->current->image, &pEnc->queue[pEnc->queue_head]); } - else 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->sStat.mblks++; + 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 - { - pEnc->sStat.ublks++; + } 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; } - start_timer(); - MBCoding(&pEnc->mbParam, pMB, qcoeff, bs, &pEnc->sStat); - stop_coding_timer(); } - } - emms(); + pFrame->length = BitstreamLength(&bs); - if (pEnc->sStat.iMvCount == 0) - pEnc->sStat.iMvCount = 1; + emms(); - fSigma = (float)sqrt((float) pEnc->sStat.iMvSum / pEnc->sStat.iMvCount); + return XVID_ERR_OK; + } - iSearchRange = 1 << (3 + pEnc->mbParam.fixed_code); + pEnc->flush_bframes = 0; - if ((fSigma > iSearchRange / 3) - && (pEnc->mbParam.fixed_code <= 3)) // maximum search range 128 - { - pEnc->mbParam.fixed_code++; - iSearchRange *= 2; - } - else if ((fSigma < iSearchRange / 6) - && (pEnc->sStat.fMvPrevSigma >= 0) - && (pEnc->sStat.fMvPrevSigma < iSearchRange / 6) - && (pEnc->mbParam.fixed_code >= 2)) // minimum search range 16 + emms(); + + /* only inc frame num, adapt quant, etc. if we havent seen it before */ + if (pEnc->bframenum_dx50bvop < 0 ) { - pEnc->mbParam.fixed_code--; - iSearchRange /= 2; - } + mode = intra2coding_type(pFrame->intra); + if (pFrame->quant == 0) + pEnc->current->quant = RateControlGetQ(&pEnc->rate_control, 0); + else + pEnc->current->quant = pFrame->quant; - pEnc->sStat.fMvPrevSigma = fSigma; - - *pBits = BitstreamPos(bs) - *pBits; +/* 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); + } - return 0; // inter + 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++, 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 }