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1 : edgomez 200 /*****************************************************************************
2 : edgomez 201 *
3 :     * XVID MPEG-4 VIDEO CODEC
4 :     * - Native API implementation -
5 :     *
6 :     * This program is an implementation of a part of one or more MPEG-4
7 :     * Video tools as specified in ISO/IEC 14496-2 standard. Those intending
8 :     * to use this software module in hardware or software products are
9 :     * advised that its use may infringe existing patents or copyrights, and
10 :     * any such use would be at such party's own risk. The original
11 :     * developer of this software module and his/her company, and subsequent
12 :     * editors and their companies, will have no liability for use of this
13 :     * software or modifications or derivatives thereof.
14 :     *
15 :     * This program is free software ; you can redistribute it and/or modify
16 :     * it under the terms of the GNU General Public License as published by
17 :     * the Free Software Foundation ; either version 2 of the License, or
18 :     * (at your option) any later version.
19 :     *
20 :     * This program is distributed in the hope that it will be useful,
21 :     * but WITHOUT ANY WARRANTY ; without even the implied warranty of
22 :     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 :     * GNU General Public License for more details.
24 :     *
25 :     * You should have received a copy of the GNU General Public License
26 :     * along with this program ; if not, write to the Free Software
27 :     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
28 :     *
29 :     ****************************************************************************/
30 : chenm001 274
31 : edgomez 200 /*****************************************************************************
32 : edgomez 201 *
33 :     * History
34 :     *
35 : suxen_drol 234 * - 23.06.2002 added XVID_CPU_CHKONLY
36 : edgomez 201 * - 17.03.2002 Added interpolate8x8_halfpel_hv_xmm
37 :     * - 22.12.2001 API change: added xvid_init() - Isibaar
38 :     * - 16.12.2001 inital version; (c)2001 peter ross <pross@cs.rmit.edu.au>
39 :     *
40 : suxen_drol 631 * $Id: xvid.c,v 1.33.2.11 2002-11-07 10:28:15 suxen_drol Exp $
41 : edgomez 201 *
42 :     ****************************************************************************/
43 : Isibaar 3
44 :     #include "xvid.h"
45 :     #include "decoder.h"
46 :     #include "encoder.h"
47 :     #include "bitstream/cbp.h"
48 :     #include "dct/idct.h"
49 :     #include "dct/fdct.h"
50 :     #include "image/colorspace.h"
51 :     #include "image/interpolate8x8.h"
52 :     #include "utils/mem_transfer.h"
53 : h 540 #include "utils/mbfunctions.h"
54 : Isibaar 3 #include "quant/quant_h263.h"
55 :     #include "quant/quant_mpeg4.h"
56 : ia64p 299 #include "motion/motion.h"
57 : Isibaar 3 #include "motion/sad.h"
58 :     #include "utils/emms.h"
59 :     #include "utils/timer.h"
60 : Isibaar 100 #include "bitstream/mbcoding.h"
61 : Isibaar 3
62 : suxen_drol 311 #if defined(ARCH_X86) && defined(EXPERIMENTAL_SSE2_CODE)
63 :    
64 :     #ifdef WIN32
65 :     #include <windows.h>
66 :     #else
67 :     #include <signal.h>
68 :     #include <setjmp.h>
69 :     #endif
70 :    
71 :    
72 :     #ifndef WIN32
73 :    
74 :     static jmp_buf mark;
75 :    
76 :     static void
77 :     sigill_handler(int signal)
78 :     {
79 :     longjmp(mark, 1);
80 :     }
81 :     #endif
82 :    
83 :    
84 :     /*
85 :     calls the funcptr, and returns whether SIGILL (illegal instruction) was signalled
86 :     return values:
87 :     -1 : could not determine
88 :     0 : SIGILL was *not* signalled
89 :     1 : SIGILL was signalled
90 :     */
91 :    
92 :     int
93 :     sigill_check(void (*func)())
94 :     {
95 :     #ifdef WIN32
96 :     _try {
97 :     func();
98 :     }
99 :     _except(EXCEPTION_EXECUTE_HANDLER) {
100 :    
101 :     if (_exception_code() == STATUS_ILLEGAL_INSTRUCTION)
102 :     return 1;
103 :     }
104 :     return 0;
105 :     #else
106 :     void * old_handler;
107 :     int jmpret;
108 :    
109 :    
110 :     old_handler = signal(SIGILL, sigill_handler);
111 :     if (old_handler == SIG_ERR)
112 :     {
113 :     return -1;
114 :     }
115 :    
116 :     jmpret = setjmp(mark);
117 :     if (jmpret == 0)
118 :     {
119 :     func();
120 :     }
121 :    
122 :     signal(SIGILL, old_handler);
123 :    
124 :     return jmpret;
125 :     #endif
126 :     }
127 :     #endif
128 :    
129 : edgomez 200 /*****************************************************************************
130 :     * XviD Init Entry point
131 :     *
132 :     * Well this function initialize all internal function pointers according
133 :     * to the CPU features forced by the library client or autodetected (depending
134 :     * on the XVID_CPU_FORCE flag). It also initializes vlc coding tables and all
135 :     * image colorspace transformation tables.
136 :     *
137 :     * Returned value : XVID_ERR_OK
138 :     * + API_VERSION in the input XVID_INIT_PARAM structure
139 :     * + core build " " " " "
140 :     *
141 :     ****************************************************************************/
142 :    
143 : edgomez 195 int
144 :     xvid_init(void *handle,
145 :     int opt,
146 :     void *param1,
147 :     void *param2)
148 : Isibaar 3 {
149 :     int cpu_flags;
150 :     XVID_INIT_PARAM *init_param;
151 :    
152 :     init_param = (XVID_INIT_PARAM *) param1;
153 :    
154 : suxen_drol 234 /* Inform the client the API version */
155 :     init_param->api_version = API_VERSION;
156 :    
157 :     /* Inform the client the core build - unused because we're still alpha */
158 :     init_param->core_build = 1000;
159 :    
160 : suxen_drol 311 /* Do we have to force CPU features ? */
161 :     if ((init_param->cpu_flags & XVID_CPU_FORCE)) {
162 : suxen_drol 234
163 : Isibaar 3 cpu_flags = init_param->cpu_flags;
164 : suxen_drol 311
165 : edgomez 200 } else {
166 : Isibaar 3
167 : chenm001 274 cpu_flags = check_cpu_features();
168 : suxen_drol 311
169 :     #if defined(ARCH_X86) && defined(EXPERIMENTAL_SSE2_CODE)
170 :     if ((cpu_flags & XVID_CPU_SSE) && sigill_check(sse_os_trigger))
171 :     cpu_flags &= ~XVID_CPU_SSE;
172 :    
173 :     if ((cpu_flags & XVID_CPU_SSE2) && sigill_check(sse2_os_trigger))
174 :     cpu_flags &= ~XVID_CPU_SSE2;
175 :     #endif
176 :     }
177 :    
178 :     if ((init_param->cpu_flags & XVID_CPU_CHKONLY))
179 :     {
180 : Isibaar 3 init_param->cpu_flags = cpu_flags;
181 : suxen_drol 311 return XVID_ERR_OK;
182 : Isibaar 3 }
183 :    
184 : suxen_drol 311 init_param->cpu_flags = cpu_flags;
185 :    
186 :    
187 : edgomez 200 /* Initialize the function pointers */
188 : Isibaar 3 idct_int32_init();
189 : Isibaar 100 init_vlc_tables();
190 :    
191 : edgomez 200 /* Fixed Point Forward/Inverse DCT transformations */
192 : Isibaar 3 fdct = fdct_int32;
193 :     idct = idct_int32;
194 :    
195 : edgomez 200 /* Only needed on PPC Altivec archs */
196 : canard 115 sadInit = 0;
197 : edgomez 195
198 : edgomez 200 /* Restore FPU context : emms_c is a nop functions */
199 : Isibaar 3 emms = emms_c;
200 :    
201 : edgomez 200 /* Quantization functions */
202 :     quant_intra = quant_intra_c;
203 : Isibaar 3 dequant_intra = dequant_intra_c;
204 : edgomez 200 quant_inter = quant_inter_c;
205 : Isibaar 3 dequant_inter = dequant_inter_c;
206 :    
207 : edgomez 200 quant4_intra = quant4_intra_c;
208 : Isibaar 3 dequant4_intra = dequant4_intra_c;
209 : edgomez 200 quant4_inter = quant4_inter_c;
210 : Isibaar 3 dequant4_inter = dequant4_inter_c;
211 :    
212 : edgomez 200 /* Block transfer related functions */
213 : Isibaar 3 transfer_8to16copy = transfer_8to16copy_c;
214 :     transfer_16to8copy = transfer_16to8copy_c;
215 : edgomez 200 transfer_8to16sub = transfer_8to16sub_c;
216 : suxen_drol 118 transfer_8to16sub2 = transfer_8to16sub2_c;
217 : edgomez 200 transfer_16to8add = transfer_16to8add_c;
218 :     transfer8x8_copy = transfer8x8_copy_c;
219 : Isibaar 3
220 : h 540 /* Interlacing functions */
221 :     MBFieldTest = MBFieldTest_c;
222 :    
223 : edgomez 200 /* Image interpolation related functions */
224 :     interpolate8x8_halfpel_h = interpolate8x8_halfpel_h_c;
225 :     interpolate8x8_halfpel_v = interpolate8x8_halfpel_v_c;
226 : Isibaar 3 interpolate8x8_halfpel_hv = interpolate8x8_halfpel_hv_c;
227 :    
228 : Isibaar 588 interpolate16x16_lowpass_h = interpolate16x16_lowpass_h_c;
229 :     interpolate16x16_lowpass_v = interpolate16x16_lowpass_v_c;
230 :     interpolate16x16_lowpass_hv = interpolate16x16_lowpass_hv_c;
231 :    
232 : Isibaar 579 interpolate8x8_lowpass_h = interpolate8x8_lowpass_h_c;
233 :     interpolate8x8_lowpass_v = interpolate8x8_lowpass_v_c;
234 :     interpolate8x8_lowpass_hv = interpolate8x8_lowpass_hv_c;
235 :    
236 :     interpolate8x8_6tap_lowpass_h = interpolate8x8_6tap_lowpass_h_c;
237 :     interpolate8x8_6tap_lowpass_v = interpolate8x8_6tap_lowpass_v_c;
238 :    
239 :     interpolate8x8_avg2 = interpolate8x8_avg2_c;
240 :     interpolate8x8_avg4 = interpolate8x8_avg4_c;
241 :    
242 : edgomez 200 /* Initialize internal colorspace transformation tables */
243 : Isibaar 3 colorspace_init();
244 :    
245 : edgomez 200 /* All colorspace transformation functions User Format->YV12 */
246 : suxen_drol 631 yv12_to_yv12 = yv12_to_yv12_c;
247 :     rgb555_to_yv12 = rgb555_to_yv12_c;
248 :     rgb565_to_yv12 = rgb565_to_yv12_c;
249 :     bgr_to_yv12 = bgr_to_yv12_c;
250 :     bgra_to_yv12 = bgra_to_yv12_c;
251 :     abgr_to_yv12 = abgr_to_yv12_c;
252 :     rgba_to_yv12 = rgba_to_yv12_c;
253 :     yuyv_to_yv12 = yuyv_to_yv12_c;
254 :     uyvy_to_yv12 = uyvy_to_yv12_c;
255 : Isibaar 3
256 : suxen_drol 631 rgb555i_to_yv12 = rgb555i_to_yv12_c;
257 :     rgb565i_to_yv12 = rgb565i_to_yv12_c;
258 :     bgri_to_yv12 = bgri_to_yv12_c;
259 :     bgrai_to_yv12 = bgrai_to_yv12_c;
260 :     abgri_to_yv12 = abgri_to_yv12_c;
261 :     rgbai_to_yv12 = rgbai_to_yv12_c;
262 :     yuyvi_to_yv12 = yuyvi_to_yv12_c;
263 :     uyvyi_to_yv12 = uyvyi_to_yv12_c;
264 :    
265 :    
266 : edgomez 200 /* All colorspace transformation functions YV12->User format */
267 : suxen_drol 631 yv12_to_rgb555 = yv12_to_rgb555_c;
268 :     yv12_to_rgb565 = yv12_to_rgb565_c;
269 :     yv12_to_bgr = yv12_to_bgr_c;
270 :     yv12_to_bgra = yv12_to_bgra_c;
271 :     yv12_to_abgr = yv12_to_abgr_c;
272 :     yv12_to_rgba = yv12_to_rgba_c;
273 :     yv12_to_yuyv = yv12_to_yuyv_c;
274 :     yv12_to_uyvy = yv12_to_uyvy_c;
275 :    
276 :     yv12_to_rgb555i = yv12_to_rgb555i_c;
277 :     yv12_to_rgb565i = yv12_to_rgb565i_c;
278 :     yv12_to_bgri = yv12_to_bgri_c;
279 :     yv12_to_bgrai = yv12_to_bgrai_c;
280 :     yv12_to_abgri = yv12_to_abgri_c;
281 :     yv12_to_rgbai = yv12_to_rgbai_c;
282 :     yv12_to_yuyvi = yv12_to_yuyvi_c;
283 :     yv12_to_uyvyi = yv12_to_uyvyi_c;
284 : Isibaar 3
285 : edgomez 200 /* Functions used in motion estimation algorithms */
286 : Isibaar 3 calc_cbp = calc_cbp_c;
287 : edgomez 200 sad16 = sad16_c;
288 : suxen_drol 329 sad8 = sad8_c;
289 : edgomez 200 sad16bi = sad16bi_c;
290 : suxen_drol 329 sad8bi = sad8bi_c;
291 : edgomez 200 dev16 = dev16_c;
292 : chl 530 sad16v = sad16v_c;
293 : suxen_drol 329
294 : chl 530 // Halfpel8_Refine = Halfpel8_Refine_c;
295 : Isibaar 3
296 :     #ifdef ARCH_X86
297 : suxen_drol 631
298 :     if ((cpu_flags & XVID_CPU_MMX) || (cpu_flags & XVID_CPU_MMXEXT) ||
299 :     (cpu_flags & XVID_CPU_3DNOW) || (cpu_flags & XVID_CPU_3DNOWEXT) ||
300 :     (cpu_flags & XVID_CPU_SSE) || (cpu_flags & XVID_CPU_SSE2))
301 :     {
302 :     /* Restore FPU context : emms_c is a nop functions */
303 :     emms = emms_mmx;
304 :     }
305 :    
306 : edgomez 195 if ((cpu_flags & XVID_CPU_MMX) > 0) {
307 : edgomez 200
308 :     /* Forward and Inverse Discrete Cosine Transformation functions */
309 : Isibaar 3 fdct = fdct_mmx;
310 :     idct = idct_mmx;
311 :    
312 : edgomez 200 /* Quantization related functions */
313 :     quant_intra = quant_intra_mmx;
314 : Isibaar 3 dequant_intra = dequant_intra_mmx;
315 : edgomez 200 quant_inter = quant_inter_mmx;
316 : Isibaar 3 dequant_inter = dequant_inter_mmx;
317 :    
318 : edgomez 200 quant4_intra = quant4_intra_mmx;
319 : Isibaar 3 dequant4_intra = dequant4_intra_mmx;
320 : edgomez 200 quant4_inter = quant4_inter_mmx;
321 : Isibaar 3 dequant4_inter = dequant4_inter_mmx;
322 :    
323 : edgomez 200 /* Block related functions */
324 : Isibaar 3 transfer_8to16copy = transfer_8to16copy_mmx;
325 :     transfer_16to8copy = transfer_16to8copy_mmx;
326 : edgomez 200 transfer_8to16sub = transfer_8to16sub_mmx;
327 : edgomez 236 transfer_8to16sub2 = transfer_8to16sub2_mmx;
328 : edgomez 200 transfer_16to8add = transfer_16to8add_mmx;
329 :     transfer8x8_copy = transfer8x8_copy_mmx;
330 : Isibaar 3
331 : h 540 /* Interlacing Functions */
332 :     MBFieldTest = MBFieldTest_mmx;
333 : edgomez 236
334 : edgomez 200 /* Image Interpolation related functions */
335 :     interpolate8x8_halfpel_h = interpolate8x8_halfpel_h_mmx;
336 :     interpolate8x8_halfpel_v = interpolate8x8_halfpel_v_mmx;
337 : Isibaar 3 interpolate8x8_halfpel_hv = interpolate8x8_halfpel_hv_mmx;
338 :    
339 : Isibaar 579 interpolate8x8_6tap_lowpass_h = interpolate8x8_6tap_lowpass_h_mmx;
340 :     interpolate8x8_6tap_lowpass_v = interpolate8x8_6tap_lowpass_v_mmx;
341 :    
342 : Isibaar 591 // interpolate8x8_avg2 = interpolate8x8_avg2_mmx;
343 : Isibaar 579 interpolate8x8_avg4 = interpolate8x8_avg4_mmx;
344 :    
345 : suxen_drol 631 /* image input xxx_to_yv12 related functions */
346 :     yv12_to_yv12 = yv12_to_yv12_mmx;
347 :     bgr_to_yv12 = bgr_to_yv12_mmx;
348 :     bgra_to_yv12 = bgra_to_yv12_mmx;
349 : edgomez 200 yuyv_to_yv12 = yuyv_to_yv12_mmx;
350 :     uyvy_to_yv12 = uyvy_to_yv12_mmx;
351 : Isibaar 3
352 : suxen_drol 631 /* image output yv12_to_xxx related functions */
353 :     yv12_to_bgr = yv12_to_bgr_mmx;
354 :     yv12_to_bgra = yv12_to_bgra_mmx;
355 : edgomez 200 yv12_to_yuyv = yv12_to_yuyv_mmx;
356 :     yv12_to_uyvy = yv12_to_uyvy_mmx;
357 : suxen_drol 631
358 :     yv12_to_yuyvi = yv12_to_yuyvi_mmx;
359 :     yv12_to_uyvyi = yv12_to_uyvyi_mmx;
360 : Isibaar 3
361 : edgomez 200 /* Motion estimation related functions */
362 : Isibaar 3 calc_cbp = calc_cbp_mmx;
363 : edgomez 200 sad16 = sad16_mmx;
364 :     sad8 = sad8_mmx;
365 : suxen_drol 329 sad16bi = sad16bi_mmx;
366 :     sad8bi = sad8bi_mmx;
367 : edgomez 200 dev16 = dev16_mmx;
368 : Isibaar 534 sad16v = sad16v_mmx;
369 : Isibaar 3
370 :     }
371 :    
372 : suxen_drol 329 /* these 3dnow functions are faster than mmx, but slower than xmm. */
373 :     if ((cpu_flags & XVID_CPU_3DNOW) > 0) {
374 :    
375 :     /* ME functions */
376 :     sad16bi = sad16bi_3dn;
377 :     sad8bi = sad8bi_3dn;
378 : suxen_drol 631
379 :     yuyv_to_yv12 = yuyv_to_yv12_3dn;
380 :     uyvy_to_yv12 = uyvy_to_yv12_3dn;
381 : suxen_drol 329 }
382 :    
383 :    
384 : edgomez 195 if ((cpu_flags & XVID_CPU_MMXEXT) > 0) {
385 : edgomez 200
386 :     /* Inverse DCT */
387 : Isibaar 3 idct = idct_xmm;
388 : edgomez 200
389 :     /* Interpolation */
390 :     interpolate8x8_halfpel_h = interpolate8x8_halfpel_h_xmm;
391 :     interpolate8x8_halfpel_v = interpolate8x8_halfpel_v_xmm;
392 : h 38 interpolate8x8_halfpel_hv = interpolate8x8_halfpel_hv_xmm;
393 : edgomez 200
394 : chenm001 274 /* Quantization */
395 :     dequant_intra = dequant_intra_xmm;
396 :     dequant_inter = dequant_inter_xmm;
397 :    
398 : edgomez 218 /* Buffer transfer */
399 :     transfer_8to16sub2 = transfer_8to16sub2_xmm;
400 :    
401 : edgomez 200 /* Colorspace transformation */
402 : suxen_drol 631 yv12_to_yv12 = yv12_to_yv12_xmm;
403 :     yuyv_to_yv12 = yuyv_to_yv12_xmm;
404 :     uyvy_to_yv12 = yuyv_to_yv12_xmm;
405 : Isibaar 3
406 : edgomez 200 /* ME functions */
407 : Isibaar 3 sad16 = sad16_xmm;
408 : suxen_drol 329 sad8 = sad8_xmm;
409 : chenm001 274 sad16bi = sad16bi_xmm;
410 : suxen_drol 329 sad8bi = sad8bi_xmm;
411 : Isibaar 3 dev16 = dev16_xmm;
412 : chl 530 sad16v = sad16v_xmm;
413 : Isibaar 3 }
414 :    
415 : edgomez 195 if ((cpu_flags & XVID_CPU_3DNOW) > 0) {
416 : edgomez 200
417 :     /* Interpolation */
418 : Isibaar 3 interpolate8x8_halfpel_h = interpolate8x8_halfpel_h_3dn;
419 :     interpolate8x8_halfpel_v = interpolate8x8_halfpel_v_3dn;
420 : h 40 interpolate8x8_halfpel_hv = interpolate8x8_halfpel_hv_3dn;
421 : Isibaar 3 }
422 :    
423 : edgomez 195 if ((cpu_flags & XVID_CPU_SSE2) > 0) {
424 : Isibaar 154 #ifdef EXPERIMENTAL_SSE2_CODE
425 : edgomez 200
426 : chenm001 274 calc_cbp = calc_cbp_sse2;
427 :    
428 : edgomez 200 /* Quantization */
429 :     quant_intra = quant_intra_sse2;
430 : Isibaar 154 dequant_intra = dequant_intra_sse2;
431 : edgomez 200 quant_inter = quant_inter_sse2;
432 : Isibaar 154 dequant_inter = dequant_inter_sse2;
433 : h 135
434 : edgomez 200 /* ME */
435 :     sad16 = sad16_sse2;
436 :     dev16 = dev16_sse2;
437 :    
438 :     /* Forward and Inverse DCT */
439 :     idct = idct_sse2;
440 : Isibaar 154 fdct = fdct_sse2;
441 :     #endif
442 : h 126 }
443 : edgomez 200
444 : Isibaar 3 #endif
445 : edgomez 200
446 : Isibaar 209 #ifdef ARCH_IA64
447 :     if ((cpu_flags & XVID_CPU_IA64) > 0) { //use assembler routines?
448 :     idct_ia64_init();
449 :     fdct = fdct_ia64;
450 :     idct = idct_ia64; //not yet working, crashes
451 :     interpolate8x8_halfpel_h = interpolate8x8_halfpel_h_ia64;
452 :     interpolate8x8_halfpel_v = interpolate8x8_halfpel_v_ia64;
453 :     interpolate8x8_halfpel_hv = interpolate8x8_halfpel_hv_ia64;
454 :     sad16 = sad16_ia64;
455 :     sad16bi = sad16bi_ia64;
456 :     sad8 = sad8_ia64;
457 :     dev16 = dev16_ia64;
458 : chl 530 // Halfpel8_Refine = Halfpel8_Refine_ia64;
459 : Isibaar 209 quant_intra = quant_intra_ia64;
460 :     dequant_intra = dequant_intra_ia64;
461 :     quant_inter = quant_inter_ia64;
462 :     dequant_inter = dequant_inter_ia64;
463 :     transfer_8to16copy = transfer_8to16copy_ia64;
464 :     transfer_16to8copy = transfer_16to8copy_ia64;
465 :     transfer_8to16sub = transfer_8to16sub_ia64;
466 :     transfer_8to16sub2 = transfer_8to16sub2_ia64;
467 :     transfer_16to8add = transfer_16to8add_ia64;
468 :     transfer8x8_copy = transfer8x8_copy_ia64;
469 :     DEBUG("Using IA-64 assembler routines.\n");
470 :     }
471 :     #endif
472 :    
473 : canard 52 #ifdef ARCH_PPC
474 : canard 71 #ifdef ARCH_PPC_ALTIVEC
475 :     calc_cbp = calc_cbp_altivec;
476 : canard 76 fdct = fdct_altivec;
477 :     idct = idct_altivec;
478 : canard 115 sadInit = sadInit_altivec;
479 : canard 89 sad16 = sad16_altivec;
480 :     sad8 = sad8_altivec;
481 :     dev16 = dev16_altivec;
482 : canard 71 #else
483 : canard 52 calc_cbp = calc_cbp_ppc;
484 :     #endif
485 : canard 71 #endif
486 : edgomez 195
487 : Isibaar 3 return XVID_ERR_OK;
488 :     }
489 :    
490 : edgomez 200 /*****************************************************************************
491 :     * XviD Native decoder entry point
492 :     *
493 :     * This function is just a wrapper to all the option cases.
494 :     *
495 :     * Returned values : XVID_ERR_FAIL when opt is invalid
496 :     * else returns the wrapped function result
497 :     *
498 :     ****************************************************************************/
499 :    
500 : edgomez 195 int
501 :     xvid_decore(void *handle,
502 :     int opt,
503 :     void *param1,
504 :     void *param2)
505 : Isibaar 3 {
506 : edgomez 195 switch (opt) {
507 :     case XVID_DEC_DECODE:
508 : suxen_drol 631 return decoder_decode((DECODER *) handle, (XVID_DEC_FRAME *) param1, (XVID_DEC_STATS*) param2);
509 : Isibaar 3
510 : edgomez 195 case XVID_DEC_CREATE:
511 : chenm001 274 return decoder_create((XVID_DEC_PARAM *) param1);
512 : Isibaar 3
513 : edgomez 195 case XVID_DEC_DESTROY:
514 :     return decoder_destroy((DECODER *) handle);
515 :    
516 : Isibaar 3 default:
517 : edgomez 195 return XVID_ERR_FAIL;
518 :     }
519 : Isibaar 3 }
520 :    
521 :    
522 : edgomez 200 /*****************************************************************************
523 :     * XviD Native encoder entry point
524 :     *
525 :     * This function is just a wrapper to all the option cases.
526 :     *
527 :     * Returned values : XVID_ERR_FAIL when opt is invalid
528 :     * else returns the wrapped function result
529 :     *
530 :     ****************************************************************************/
531 :    
532 : edgomez 195 int
533 :     xvid_encore(void *handle,
534 :     int opt,
535 :     void *param1,
536 :     void *param2)
537 : Isibaar 3 {
538 : edgomez 195 switch (opt) {
539 :     case XVID_ENC_ENCODE:
540 : chl 620
541 : suxen_drol 232 if (((Encoder *) handle)->mbParam.max_bframes >= 0)
542 :     return encoder_encode_bframes((Encoder *) handle, (XVID_ENC_FRAME *) param1,
543 :     (XVID_ENC_STATS *) param2);
544 :     else
545 : edgomez 195 return encoder_encode((Encoder *) handle, (XVID_ENC_FRAME *) param1,
546 :     (XVID_ENC_STATS *) param2);
547 : Isibaar 3
548 : edgomez 195 case XVID_ENC_CREATE:
549 :     return encoder_create((XVID_ENC_PARAM *) param1);
550 : Isibaar 3
551 : edgomez 195 case XVID_ENC_DESTROY:
552 :     return encoder_destroy((Encoder *) handle);
553 :    
554 : Isibaar 3 default:
555 : edgomez 195 return XVID_ERR_FAIL;
556 :     }
557 : Isibaar 3 }

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