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* 22.12.2001 removed some compiler warnings |
* 22.12.2001 removed some compiler warnings |
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* 16.12.2001 inital version; (c)2001 peter ross <pross@cs.rmit.edu.au> |
* 16.12.2001 inital version; (c)2001 peter ross <pross@cs.rmit.edu.au> |
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* |
* |
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* $Id: divx4.c,v 1.11 2002-05-04 12:26:06 edgomez Exp $ |
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* |
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*************************************************************************/ |
*************************************************************************/ |
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#include <stdlib.h> |
#include <stdlib.h> |
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#include <string.h> |
#include <string.h> |
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#include <stdio.h> |
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#include "xvid.h" |
#include "xvid.h" |
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#include "divx4.h" |
#include "divx4.h" |
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} DINST; |
} DINST; |
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typedef struct EINST |
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{ |
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struct EINST * next; |
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void * handle; |
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int quality; |
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} EINST; |
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/************************************************************************** |
/************************************************************************** |
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* Global data (needed to emulate correctly exported symbols from divx4) |
* Global data (needed to emulate correctly exported symbols from divx4) |
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*************************************************************************/ |
*************************************************************************/ |
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/* The Divx4 instance chainlist */ |
/* The Divx4 instance chainlist */ |
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static DINST * dhead = NULL; |
static DINST * dhead = NULL; |
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static EINST * ehead = NULL; |
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/* Divx4 quality to XviD encoder motion flag presets */ |
/* Divx4 quality to XviD encoder motion flag presets */ |
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static int const divx4_motion_presets[7] = { |
static int const divx4_motion_presets[7] = { |
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XVID_H263QUANT | XVID_INTER4V | XVID_HALFPEL |
XVID_H263QUANT | XVID_INTER4V | XVID_HALFPEL |
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}; |
}; |
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/* |
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* Current divx4 encoder quality |
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* ToDo : this data should not be shared between encoder instances |
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*/ |
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static int quality; |
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/************************************************************************** |
/************************************************************************** |
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* Local Prototypes |
* Local Prototypes |
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*************************************************************************/ |
*************************************************************************/ |
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static DINST * dinst_add(unsigned long key); |
static DINST * dinst_add(unsigned long key); |
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static void dinst_remove(unsigned long key); |
static void dinst_remove(unsigned long key); |
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static EINST * einst_find(void *handle); |
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static EINST * einst_add(void *handle); |
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static void einst_remove(void *handle); |
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/* Converts divx4 colorspaces codes to xvid codes */ |
/* Converts divx4 colorspaces codes to xvid codes */ |
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static int xvid_to_opendivx_dec_csp(int csp); |
static int xvid_to_opendivx_dec_csp(int csp); |
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static int xvid_to_opendivx_enc_csp(int csp); |
static int xvid_to_opendivx_enc_csp(int csp); |
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switch(opt) { |
switch(opt) { |
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case ENC_OPT_INIT : |
case ENC_OPT_INIT : |
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{ |
{ |
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EINST *ecur; |
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ENC_PARAM * eparam = (ENC_PARAM *)param1; |
ENC_PARAM * eparam = (ENC_PARAM *)param1; |
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XVID_INIT_PARAM xinit; |
XVID_INIT_PARAM xinit; |
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XVID_ENC_PARAM xparam; |
XVID_ENC_PARAM xparam; |
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xparam.min_quantizer = eparam->min_quantizer; |
xparam.min_quantizer = eparam->min_quantizer; |
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xparam.max_quantizer = eparam->max_quantizer; |
xparam.max_quantizer = eparam->max_quantizer; |
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xparam.max_key_interval = eparam->max_key_interval; |
xparam.max_key_interval = eparam->max_key_interval; |
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quality = eparam->quality; |
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/* Create the encoder session */ |
/* Create the encoder session */ |
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xerr = encoder_create(&xparam); |
xerr = encoder_create(&xparam); |
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eparam->handle = xparam.handle; |
eparam->handle = xparam.handle; |
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/* Create an encoder instance in the chainlist */ |
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if ((ecur = einst_find(xparam.handle)) == NULL) |
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{ |
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ecur = einst_add(xparam.handle); |
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if(ecur == NULL) { |
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encoder_destroy((Encoder*)xparam.handle); |
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return ENC_MEMORY; |
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} |
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} |
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ecur->quality = eparam->quality; |
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if(ecur->quality < 0) ecur->quality = 0; |
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if(ecur->quality > 6) ecur->quality = 6; |
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break; |
break; |
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} |
} |
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case ENC_OPT_RELEASE : |
case ENC_OPT_RELEASE : |
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{ |
{ |
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EINST *ecur; |
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if ((ecur = einst_find(handle)) == NULL) |
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{ |
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return ENC_FAIL; |
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} |
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xerr = encoder_destroy((Encoder *) handle); |
xerr = encoder_destroy((Encoder *) handle); |
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break; |
break; |
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} |
} |
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case ENC_OPT_ENCODE : |
case ENC_OPT_ENCODE : |
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case ENC_OPT_ENCODE_VBR : |
case ENC_OPT_ENCODE_VBR : |
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{ |
{ |
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EINST *ecur; |
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ENC_FRAME * eframe = (ENC_FRAME *)param1; |
ENC_FRAME * eframe = (ENC_FRAME *)param1; |
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ENC_RESULT * eresult = (ENC_RESULT *)param2; |
ENC_RESULT * eresult = (ENC_RESULT *)param2; |
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XVID_ENC_FRAME xframe; |
XVID_ENC_FRAME xframe; |
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XVID_ENC_STATS xstats; |
XVID_ENC_STATS xstats; |
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if ((ecur = einst_find(handle)) == NULL) |
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{ |
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return ENC_FAIL; |
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} |
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/* Copy the divx4 info into the xvid structure */ |
/* Copy the divx4 info into the xvid structure */ |
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xframe.bitstream = eframe->bitstream; |
xframe.bitstream = eframe->bitstream; |
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xframe.length = eframe->length; |
xframe.length = eframe->length; |
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xframe.motion = divx4_motion_presets[ecur->quality]; |
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xframe.motion = divx4_motion_presets[quality]; |
xframe.general = divx4_general_presets[ecur->quality]; |
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xframe.general = divx4_general_presets[quality]; |
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xframe.image = eframe->image; |
xframe.image = eframe->image; |
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xframe.colorspace = |
xframe.colorspace = |
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} |
} |
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} |
} |
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/*************************************** |
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* EINST chainlist helper functions * |
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***************************************/ |
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/* Find an element in the chainlist according to its handle */ |
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static EINST * einst_find(void *handle) |
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{ |
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EINST * ecur = ehead; |
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while (ecur) |
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{ |
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if (ecur->handle == handle) |
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{ |
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return ecur; |
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} |
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ecur = ecur->next; |
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} |
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return NULL; |
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} |
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/* Add an element to the chainlist */ |
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static EINST * einst_add(void *handle) |
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{ |
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EINST * enext = ehead; |
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ehead = malloc(sizeof(EINST)); |
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if (ehead == NULL) |
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{ |
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ehead = enext; |
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return NULL; |
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} |
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ehead->handle = handle; |
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ehead->next = enext; |
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return ehead; |
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} |
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/* Remove an elmement from the chainlist */ |
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static void einst_remove(void *handle) |
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{ |
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EINST * ecur = ehead; |
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if (ehead == NULL) |
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{ |
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return; |
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} |
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if (ecur->handle == handle) |
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{ |
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ehead = ecur->next; |
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free(ecur); |
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return; |
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} |
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while (ecur->next) |
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{ |
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if (ecur->next->handle == handle) |
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{ |
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EINST * tmp = ecur->next; |
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ecur->next = tmp->next; |
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free(tmp); |
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return; |
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} |
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ecur = ecur->next; |
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} |
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} |
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/*************************************** |
/*************************************** |
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* Colorspace code converter * |
* Colorspace code converter * |
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***************************************/ |
***************************************/ |