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* XVID MPEG-4 VIDEO CODEC |
* XVID MPEG-4 VIDEO CODEC |
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* - Native API implementation - |
* - Native API implementation - |
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* |
* |
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* Copyright(C) 2001-2002 Peter Ross <pross@cs.rmit.edu.au> |
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* |
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* This program is an implementation of a part of one or more MPEG-4 |
* This program is an implementation of a part of one or more MPEG-4 |
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* Video tools as specified in ISO/IEC 14496-2 standard. Those intending |
* Video tools as specified in ISO/IEC 14496-2 standard. Those intending |
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* to use this software module in hardware or software products are |
* to use this software module in hardware or software products are |
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* |
* |
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****************************************************************************/ |
****************************************************************************/ |
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/***************************************************************************** |
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* |
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* History |
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* - 23.06.2002 added XVID_CPU_CHKONLY |
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* - 17.03.2002 Added interpolate8x8_halfpel_hv_xmm |
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* - 22.12.2001 API change: added xvid_init() - Isibaar |
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* - 16.12.2001 inital version; (c)2001 peter ross <pross@cs.rmit.edu.au> |
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* |
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* $Id: xvid.c,v 1.30 2002-07-16 11:15:15 ia64p Exp $ |
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* |
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****************************************************************************/ |
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#include "xvid.h" |
#include "xvid.h" |
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#include "decoder.h" |
#include "decoder.h" |
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#include "encoder.h" |
#include "encoder.h" |
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#include "utils/timer.h" |
#include "utils/timer.h" |
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#include "bitstream/mbcoding.h" |
#include "bitstream/mbcoding.h" |
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#if defined(ARCH_X86) && defined(EXPERIMENTAL_SSE2_CODE) |
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#ifdef WIN32 |
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#include <windows.h> |
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#else |
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#include <signal.h> |
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#include <setjmp.h> |
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#endif |
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#ifndef WIN32 |
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static jmp_buf mark; |
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static void |
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sigill_handler(int signal) |
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{ |
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longjmp(mark, 1); |
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} |
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#endif |
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/* |
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* Calls the funcptr, and returns whether SIGILL (illegal instruction) was signalled |
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* Return values: |
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* -1 : could not determine |
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* 0 : SIGILL was *not* signalled |
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* 1 : SIGILL was signalled |
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*/ |
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int |
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sigill_check(void (*func)()) |
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{ |
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#ifdef WIN32 |
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_try { |
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func(); |
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} |
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_except(EXCEPTION_EXECUTE_HANDLER) { |
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if (_exception_code() == STATUS_ILLEGAL_INSTRUCTION) |
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return 1; |
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} |
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return 0; |
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#else |
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void * old_handler; |
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int jmpret; |
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old_handler = signal(SIGILL, sigill_handler); |
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if (old_handler == SIG_ERR) |
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{ |
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return -1; |
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} |
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jmpret = setjmp(mark); |
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if (jmpret == 0) |
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{ |
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func(); |
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} |
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signal(SIGILL, old_handler); |
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return jmpret; |
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#endif |
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} |
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#endif |
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/***************************************************************************** |
/***************************************************************************** |
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* XviD Init Entry point |
* XviD Init Entry point |
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* |
* |
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/* Inform the client the core build - unused because we're still alpha */ |
/* Inform the client the core build - unused because we're still alpha */ |
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init_param->core_build = 1000; |
init_param->core_build = 1000; |
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if ((init_param->cpu_flags & XVID_CPU_CHKONLY)) |
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{ |
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init_param->cpu_flags = check_cpu_features(); |
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return XVID_ERR_OK; |
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} |
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/* Do we have to force CPU features ? */ |
/* Do we have to force CPU features ? */ |
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if ((init_param->cpu_flags & XVID_CPU_FORCE) > 0) { |
if ((init_param->cpu_flags & XVID_CPU_FORCE)) { |
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cpu_flags = init_param->cpu_flags; |
cpu_flags = init_param->cpu_flags; |
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} else { |
} else { |
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cpu_flags = check_cpu_features(); |
cpu_flags = check_cpu_features(); |
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#if defined(ARCH_X86) && defined(EXPERIMENTAL_SSE2_CODE) |
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if ((cpu_flags & XVID_CPU_SSE) && sigill_check(sse_os_trigger)) |
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cpu_flags &= ~XVID_CPU_SSE; |
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if ((cpu_flags & XVID_CPU_SSE2) && sigill_check(sse2_os_trigger)) |
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cpu_flags &= ~XVID_CPU_SSE2; |
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#endif |
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} |
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if ((init_param->cpu_flags & XVID_CPU_CHKONLY)) |
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{ |
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init_param->cpu_flags = cpu_flags; |
init_param->cpu_flags = cpu_flags; |
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return XVID_ERR_OK; |
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} |
} |
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init_param->cpu_flags = cpu_flags; |
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/* Initialize the function pointers */ |
/* Initialize the function pointers */ |
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idct_int32_init(); |
idct_int32_init(); |
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init_vlc_tables(); |
init_vlc_tables(); |
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/* Functions used in motion estimation algorithms */ |
/* Functions used in motion estimation algorithms */ |
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calc_cbp = calc_cbp_c; |
calc_cbp = calc_cbp_c; |
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sad16 = sad16_c; |
sad16 = sad16_c; |
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sad16bi = sad16bi_c; |
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sad8 = sad8_c; |
sad8 = sad8_c; |
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sad16bi = sad16bi_c; |
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sad8bi = sad8bi_c; |
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dev16 = dev16_c; |
dev16 = dev16_c; |
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Halfpel8_Refine = Halfpel8_Refine_c; |
Halfpel8_Refine = Halfpel8_Refine_c; |
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#ifdef ARCH_X86 |
#ifdef ARCH_X86 |
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calc_cbp = calc_cbp_mmx; |
calc_cbp = calc_cbp_mmx; |
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sad16 = sad16_mmx; |
sad16 = sad16_mmx; |
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sad8 = sad8_mmx; |
sad8 = sad8_mmx; |
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sad16bi = sad16bi_mmx; |
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sad8bi = sad8bi_mmx; |
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dev16 = dev16_mmx; |
dev16 = dev16_mmx; |
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} |
} |
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/* these 3dnow functions are faster than mmx, but slower than xmm. */ |
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if ((cpu_flags & XVID_CPU_3DNOW) > 0) { |
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/* ME functions */ |
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sad16bi = sad16bi_3dn; |
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sad8bi = sad8bi_3dn; |
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} |
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if ((cpu_flags & XVID_CPU_MMXEXT) > 0) { |
if ((cpu_flags & XVID_CPU_MMXEXT) > 0) { |
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/* Inverse DCT */ |
/* Inverse DCT */ |
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/* ME functions */ |
/* ME functions */ |
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sad16 = sad16_xmm; |
sad16 = sad16_xmm; |
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sad16bi = sad16bi_xmm; |
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sad8 = sad8_xmm; |
sad8 = sad8_xmm; |
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sad16bi = sad16bi_xmm; |
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sad8bi = sad8bi_xmm; |
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dev16 = dev16_xmm; |
dev16 = dev16_xmm; |
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} |
} |
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{ |
{ |
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switch (opt) { |
switch (opt) { |
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case XVID_ENC_ENCODE: |
case XVID_ENC_ENCODE: |
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#ifdef BFRAMES |
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if (((Encoder *) handle)->mbParam.max_bframes >= 0) |
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return encoder_encode_bframes((Encoder *) handle, (XVID_ENC_FRAME *) param1, |
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(XVID_ENC_STATS *) param2); |
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else |
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#endif |
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return encoder_encode((Encoder *) handle, (XVID_ENC_FRAME *) param1, |
return encoder_encode((Encoder *) handle, (XVID_ENC_FRAME *) param1, |
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(XVID_ENC_STATS *) param2); |
(XVID_ENC_STATS *) param2); |
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