1 /*
2 * - XviD 1.x decoder module for mplayer/mencoder -
3 *
4 * Copyright(C) 2003 Marco Belli <elcabesa@inwind.it>
5 * 2003-2004 Edouard Gomez <ed.gomez@free.fr>
6 *
7 * This file is part of MPlayer.
8 *
9 * MPlayer is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * MPlayer is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License along
20 * with MPlayer; if not, write to the Free Software Foundation, Inc.,
21 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 */
23
24 /*****************************************************************************
25 * Includes
26 ****************************************************************************/
27
28 #include <stdio.h>
29 #include <stdlib.h>
30
31 #include "config.h"
32 #include "mp_msg.h"
33
34 #include "vd_internal.h"
35 #include "m_option.h"
36
37 #include <xvid.h>
38
39 /*****************************************************************************
40 * Configuration options
41 ****************************************************************************/
42
43 static int do_dr2 = 1;
44 static int filmeffect = 0;
45 static int lumadeblock = 0;
46 static int chromadeblock = 0;
47 static int lumadering = 0;
48 static int chromadering = 0;
49
50 const m_option_t xvid_dec_opts[] = {
51 { "dr2", &do_dr2, CONF_TYPE_FLAG, 0, 0, 1, NULL},
52 { "nodr2", &do_dr2, CONF_TYPE_FLAG, 0, 1, 0, NULL},
53 { "filmeffect", &filmeffect, CONF_TYPE_FLAG, 0, 0, 1, NULL},
54 { "deblock-luma", &lumadeblock, CONF_TYPE_FLAG, 0, 0, 1, NULL},
55 { "deblock-chroma", &chromadeblock, CONF_TYPE_FLAG, 0, 0, 1, NULL},
56 { "dering-luma", &lumadering, CONF_TYPE_FLAG, 0, 0, 1, NULL},
57 { "dering-chroma", &chromadering, CONF_TYPE_FLAG, 0, 0, 1, NULL},
58 {NULL, NULL, 0, 0, 0, 0, NULL}
59 };
60
61 /*****************************************************************************
62 * Module private data
63 ****************************************************************************/
64
65 typedef struct {
66 int cs;
67 unsigned char img_type;
68 void* hdl;
69 mp_image_t* mpi;
70 int vo_initialized;
71 } priv_t;
72
73 /*****************************************************************************
74 * Module function helpers
75 ****************************************************************************/
76
77 static float stats2aspect(xvid_dec_stats_t *stats);
78
79 /*****************************************************************************
80 * Video decoder API function definitions
81 ****************************************************************************/
82
83 /*============================================================================
84 * control - to set/get/query special features/parameters
85 *==========================================================================*/
86
control(sh_video_t * sh,int cmd,void * arg,...)87 static int control(sh_video_t *sh,int cmd,void* arg,...)
88 {
89 return CONTROL_UNKNOWN;
90 }
91
92 /*============================================================================
93 * init - initialize the codec
94 *==========================================================================*/
95
init(sh_video_t * sh)96 static int init(sh_video_t *sh)
97 {
98 xvid_gbl_info_t xvid_gbl_info;
99 xvid_gbl_init_t xvid_ini;
100 xvid_dec_create_t dec_p;
101 priv_t* p;
102 int cs;
103
104 memset(&xvid_gbl_info, 0, sizeof(xvid_gbl_info_t));
105 xvid_gbl_info.version = XVID_VERSION;
106
107 memset(&xvid_ini, 0, sizeof(xvid_gbl_init_t));
108 xvid_ini.version = XVID_VERSION;
109
110 memset(&dec_p, 0, sizeof(xvid_dec_create_t));
111 dec_p.version = XVID_VERSION;
112
113
114 switch(sh->codec->outfmt[sh->outfmtidx]){
115 case IMGFMT_YV12:
116 /* We will use our own buffers, this speeds decoding avoiding
117 * frame memcpy's overhead */
118 cs = (do_dr2)?XVID_CSP_INTERNAL:XVID_CSP_USER;
119 break;
120 case IMGFMT_YUY2:
121 cs = XVID_CSP_YUY2;
122 break;
123 case IMGFMT_UYVY:
124 cs = XVID_CSP_UYVY;
125 break;
126 case IMGFMT_I420:
127 case IMGFMT_IYUV:
128 /* We will use our own buffers, this speeds decoding avoiding
129 * frame memcpy's overhead */
130 cs = (do_dr2)?XVID_CSP_INTERNAL:XVID_CSP_USER;
131 break;
132 case IMGFMT_BGR15:
133 cs = XVID_CSP_RGB555;
134 break;
135 case IMGFMT_BGR16:
136 cs = XVID_CSP_RGB565;
137 break;
138 case IMGFMT_BGR32:
139 cs = XVID_CSP_BGRA;
140 break;
141 case IMGFMT_YVYU:
142 cs = XVID_CSP_YVYU;
143 break;
144 default:
145 mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Unsupported out_fmt: 0x%X\n",
146 sh->codec->outfmt[sh->outfmtidx]);
147 return 0;
148 }
149
150 /* Gather some information about the host library */
151 if(xvid_global(NULL, XVID_GBL_INFO, &xvid_gbl_info, NULL) < 0) {
152 mp_msg(MSGT_MENCODER,MSGL_INFO, "xvid: could not get information about the library\n");
153 } else {
154 mp_msg(MSGT_MENCODER,MSGL_INFO, "xvid: using library version %d.%d.%d (build %s)\n",
155 XVID_VERSION_MAJOR(xvid_gbl_info.actual_version),
156 XVID_VERSION_MINOR(xvid_gbl_info.actual_version),
157 XVID_VERSION_PATCH(xvid_gbl_info.actual_version),
158 xvid_gbl_info.build);
159 }
160
161 /* Initialize the xvidcore library */
162 if(xvid_global(NULL, XVID_GBL_INIT, &xvid_ini, NULL))
163 return 0;
164
165 /* We use 0 width and height so xvidcore will resize its buffers
166 * if required. That allows this vd plugin to do resize on first
167 * VOL encountered (don't trust containers' width and height) */
168 dec_p.width = 0;
169 dec_p.height = 0;
170
171 /* Get a decoder instance */
172 if(xvid_decore(0, XVID_DEC_CREATE, &dec_p, NULL)<0) {
173 mp_msg(MSGT_DECVIDEO, MSGL_ERR, "XviD init failed\n");
174 return 0;
175 }
176
177 p = malloc(sizeof(priv_t));
178 p->cs = cs;
179 p->hdl = dec_p.handle;
180 p->vo_initialized = 0;
181 sh->context = p;
182
183 switch(cs) {
184 case XVID_CSP_INTERNAL:
185 p->img_type = MP_IMGTYPE_EXPORT;
186 break;
187 case XVID_CSP_USER:
188 p->img_type = MP_IMGTYPE_STATIC;
189 break;
190 default:
191 p->img_type = MP_IMGTYPE_TEMP;
192 break;
193 }
194
195 return 1;
196 }
197
198 /*============================================================================
199 * uninit - close the codec
200 *==========================================================================*/
201
uninit(sh_video_t * sh)202 static void uninit(sh_video_t *sh){
203 priv_t* p = sh->context;
204 if(!p)
205 return;
206 xvid_decore(p->hdl,XVID_DEC_DESTROY, NULL, NULL);
207 free(p);
208 }
209
210 /*============================================================================
211 * decode - decode a frame from stream
212 *==========================================================================*/
213
decode(sh_video_t * sh,void * data,int len,int flags)214 static mp_image_t* decode(sh_video_t *sh, void* data, int len, int flags)
215 {
216 xvid_dec_frame_t dec;
217 xvid_dec_stats_t stats;
218 mp_image_t* mpi = NULL;
219
220 priv_t* p = sh->context;
221
222
223 if(!data || len <= 0)
224 return NULL;
225
226 memset(&dec,0,sizeof(xvid_dec_frame_t));
227 memset(&stats, 0, sizeof(xvid_dec_stats_t));
228 dec.version = XVID_VERSION;
229 stats.version = XVID_VERSION;
230
231 dec.bitstream = data;
232 dec.length = len;
233
234 dec.general |= XVID_LOWDELAY
235 /* XXX: if lowdelay is unset, and xvidcore internal buffers are
236 * used => crash. MUST FIX */
237 | (filmeffect ? XVID_FILMEFFECT : 0 )
238 | (lumadeblock ? XVID_DEBLOCKY : 0 )
239 | (chromadeblock ? XVID_DEBLOCKUV : 0 );
240 #if XVID_API >= XVID_MAKE_API(4,1)
241 dec.general |= (lumadering ? XVID_DEBLOCKY|XVID_DERINGY : 0 );
242 dec.general |= (chromadering ? XVID_DEBLOCKUV|XVID_DERINGUV : 0 );
243 #endif
244 dec.output.csp = p->cs;
245
246 /* Decoding loop because xvidcore may return VOL information for
247 * on the fly buffer resizing. In that case we must decode VOL,
248 * init VO, then decode the frame */
249 do {
250 int consumed;
251
252 /* If we don't know frame size yet, don't even try to request
253 * a buffer, we must loop until we find a VOL, so VO plugin
254 * is initialized and we can obviously output something */
255 if (p->vo_initialized) {
256 mpi = mpcodecs_get_image(sh, p->img_type,
257 MP_IMGFLAG_ACCEPT_STRIDE,
258 sh->disp_w, sh->disp_h);
259 if (!mpi) return NULL;
260
261 if(p->cs != XVID_CSP_INTERNAL) {
262 dec.output.plane[0] = mpi->planes[0];
263 dec.output.plane[1] = mpi->planes[1];
264 dec.output.plane[2] = mpi->planes[2];
265
266 dec.output.stride[0] = mpi->stride[0];
267 dec.output.stride[1] = mpi->stride[1];
268 dec.output.stride[2] = mpi->stride[2];
269 }
270 }
271
272 /* Decode data */
273 consumed = xvid_decore(p->hdl, XVID_DEC_DECODE, &dec, &stats);
274 if (consumed < 0) {
275 mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Decoding error\n");
276 return NULL;
277 }
278
279 /* Found a VOL information stats, if VO plugin is not initialized
280 * yet then do it now */
281 if (stats.type == XVID_TYPE_VOL && !p->vo_initialized) {
282 sh->original_aspect = stats2aspect(&stats);
283 if(!mpcodecs_config_vo(sh, stats.data.vol.width, stats.data.vol.height, IMGFMT_YV12))
284 return NULL;
285
286 /* Don't take this path twice */
287 p->vo_initialized = !p->vo_initialized;
288 }
289
290 /* Don't forget to update buffer position and buffer length */
291 dec.bitstream += consumed;
292 dec.length -= consumed;
293 } while ((stats.type == XVID_TYPE_VOL || stats.type == XVID_TYPE_NOTHING) && dec.length > 0);
294
295 /* There are two ways to get out of the decoding loop:
296 * - a frame has been returned
297 * - no more data in buffer and no frames returned */
298
299 /* If mpi is NULL, it proves nothing has been returned by the decoder
300 * so don't try to display internal buffers. */
301 if (mpi != NULL && p->cs == XVID_CSP_INTERNAL) {
302 mpi->planes[0] = dec.output.plane[0];
303 mpi->planes[1] = dec.output.plane[1];
304 mpi->planes[2] = dec.output.plane[2];
305
306 mpi->stride[0] = dec.output.stride[0];
307 mpi->stride[1] = dec.output.stride[1];
308 mpi->stride[2] = dec.output.stride[2];
309 }
310
311 /* If we got out the decoding loop because the buffer was empty and there was nothing
312 * to output yet, then just return NULL */
313 return (stats.type == XVID_TYPE_NOTHING) ? NULL : mpi;
314 }
315
316 /*****************************************************************************
317 * Helper functions
318 ****************************************************************************/
319
320 /* Returns DAR value according to VOL's informations contained in stats
321 * param */
stats2aspect(xvid_dec_stats_t * stats)322 static float stats2aspect(xvid_dec_stats_t *stats)
323 {
324 if (stats->type == XVID_TYPE_VOL) {
325 float wpar;
326 float hpar;
327 float dar;
328
329 /* MPEG4 strem stores PAR (Pixel Aspect Ratio), mplayer uses
330 * DAR (Display Aspect Ratio)
331 *
332 * Both are related thanks to the equation:
333 * width
334 * DAR = ----- x PAR
335 * height
336 *
337 * As MPEG4 is so well designed (*cough*), VOL header carries
338 * both informations together -- lucky eh ? */
339
340 switch (stats->data.vol.par) {
341 case XVID_PAR_11_VGA: /* 1:1 vga (square), default if supplied PAR is not a valid value */
342 wpar = hpar = 1.0f;
343 break;
344 case XVID_PAR_43_PAL: /* 4:3 pal (12:11 625-line) */
345 wpar = 12;
346 hpar = 11;
347 break;
348 case XVID_PAR_43_NTSC: /* 4:3 ntsc (10:11 525-line) */
349 wpar = 10;
350 hpar = 11;
351 break;
352 case XVID_PAR_169_PAL: /* 16:9 pal (16:11 625-line) */
353 wpar = 16;
354 hpar = 11;
355 break;
356 case XVID_PAR_169_NTSC: /* 16:9 ntsc (40:33 525-line) */
357 wpar = 40;
358 hpar = 33;
359 break;
360 case XVID_PAR_EXT: /* extended par; use par_width, par_height */
361 wpar = stats->data.vol.par_width;
362 hpar = stats->data.vol.par_height;
363 break;
364 default:
365 wpar = hpar = 1.0f;
366 break;
367 }
368
369 dar = ((float)stats->data.vol.width*wpar);
370 dar /= ((float)stats->data.vol.height*hpar);
371
372 return dar;
373 }
374
375 return 0.0f;
376 }
377
378 /*****************************************************************************
379 * Module structure definition
380 ****************************************************************************/
381
382 static const vd_info_t info =
383 {
384 "XviD 1.0 decoder",
385 "xvid",
386 "Marco Belli <elcabesa@inwind.it>, Edouard Gomez <ed.gomez@free.fr>",
387 "Marco Belli <elcabesa@inwind.it>, Edouard Gomez <ed.gomez@free.fr>",
388 "No Comment"
389 };
390
391 LIBVD_EXTERN(xvid)
392
393 /* Please do not change that tag comment.
394 * arch-tag: b7d654a5-76ea-4768-9713-2c791567fe7d mplayer xvid decoder module */
395