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es: pass no cc reorder in es fmt
[vlc.git] / modules / packetizer / vc1.c
blobb07529998038f6c7db2385b69a34129b81463278
1 /*****************************************************************************
2 * vc1.c
3 *****************************************************************************
4 * Copyright (C) 2001, 2002, 2006 VLC authors and VideoLAN
5 * $Id$
6 *
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * Gildas Bazin <gbazin@videolan.org>
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU Lesser General Public License as published by
12 * the Free Software Foundation; either version 2.1 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public License
21 * along with this program; if not, write to the Free Software Foundation,
22 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
24
25 /*****************************************************************************
26 * Preamble
27 *****************************************************************************/
28
29 #ifdef HAVE_CONFIG_H
30 # include "config.h"
31 #endif
32
33 #include <vlc_common.h>
34 #include <vlc_plugin.h>
35 #include <vlc_codec.h>
36 #include <vlc_block.h>
37
38 #include <vlc_bits.h>
39 #include <vlc_block_helper.h>
40 #include "../codec/cc.h"
41 #include "packetizer_helper.h"
42 #include "hxxx_nal.h"
43 #include "startcode_helper.h"
44
45 /*****************************************************************************
46 * Module descriptor
47 *****************************************************************************/
48 static int Open ( vlc_object_t * );
49 static void Close( vlc_object_t * );
50
51 vlc_module_begin ()
52 set_category( CAT_SOUT )
53 set_subcategory( SUBCAT_SOUT_PACKETIZER )
54 set_description( N_("VC-1 packetizer") )
55 set_capability( "packetizer", 50 )
56 set_callbacks( Open, Close )
57 vlc_module_end ()
58
59 /*****************************************************************************
60 * Local prototypes
61 *****************************************************************************/
62 struct decoder_sys_t
63 {
64 /*
65 * Input properties
66 */
67 packetizer_t packetizer;
68
69 /* Current sequence header */
70 bool b_sequence_header;
71 struct
72 {
73 block_t *p_sh;
74 bool b_advanced_profile;
75 bool b_interlaced;
76 bool b_frame_interpolation;
77 bool b_range_reduction;
78 bool b_has_bframe;
79 } sh;
80 bool b_entry_point;
81 struct
82 {
83 block_t *p_ep;
84 } ep;
85
86 /* */
87 bool b_frame;
88
89 /* Current frame being built */
90 mtime_t i_frame_dts;
91 mtime_t i_frame_pts;
92 block_t *p_frame;
93 block_t **pp_last;
94
95
96 mtime_t i_interpolated_dts;
97 bool b_check_startcode;
98
99 /* */
100 uint32_t i_cc_flags;
101 mtime_t i_cc_pts;
102 mtime_t i_cc_dts;
103 cc_data_t cc;
104
105 cc_data_t cc_next;
106 };
107
108 typedef enum
109 {
110 IDU_TYPE_SEQUENCE_HEADER = 0x0f,
111 IDU_TYPE_ENTRY_POINT = 0x0e,
112 IDU_TYPE_FRAME = 0x0D,
113 IDU_TYPE_FIELD = 0x0C,
114 IDU_TYPE_SLICE = 0x0B,
115 IDU_TYPE_END_OF_SEQUENCE = 0x0A,
116
117 IDU_TYPE_SEQUENCE_LEVEL_USER_DATA = 0x1F,
118 IDU_TYPE_ENTRY_POINT_USER_DATA = 0x1E,
119 IDU_TYPE_FRAME_USER_DATA = 0x1D,
120 IDU_TYPE_FIELD_USER_DATA = 0x1C,
121 IDU_TYPE_SLICE_USER_DATA = 0x1B,
122 } idu_type_t;
123
124 static block_t *Packetize( decoder_t *p_dec, block_t **pp_block );
125 static void Flush( decoder_t * );
126
127 static void PacketizeReset( void *p_private, bool b_broken );
128 static block_t *PacketizeParse( void *p_private, bool *pb_ts_used, block_t * );
129 static int PacketizeValidate( void *p_private, block_t * );
130
131 static block_t *ParseIDU( decoder_t *p_dec, bool *pb_ts_used, block_t *p_frag );
132 static block_t *GetCc( decoder_t *p_dec, bool pb_present[4], int * );
133
134 static const uint8_t p_vc1_startcode[3] = { 0x00, 0x00, 0x01 };
135 /*****************************************************************************
136 * Open: probe the packetizer and return score
137 *****************************************************************************
138 * Tries to launch a decoder and return score so that the interface is able
139 * to choose.
140 *****************************************************************************/
141 static int Open( vlc_object_t *p_this )
142 {
143 decoder_t *p_dec = (decoder_t*)p_this;
144 decoder_sys_t *p_sys;
145
146 if( p_dec->fmt_in.i_codec != VLC_CODEC_VC1 )
147 return VLC_EGENERIC;
148
149 p_dec->pf_packetize = Packetize;
150 p_dec->pf_flush = Flush;
151 p_dec->pf_get_cc = GetCc;
152
153 /* Create the output format */
154 es_format_Copy( &p_dec->fmt_out, &p_dec->fmt_in );
155 p_dec->p_sys = p_sys = malloc( sizeof( decoder_sys_t ) );
156 if( unlikely( !p_sys ) )
157 return VLC_ENOMEM;
158
159 packetizer_Init( &p_sys->packetizer,
160 p_vc1_startcode, sizeof(p_vc1_startcode), startcode_FindAnnexB,
161 NULL, 0, 4,
162 PacketizeReset, PacketizeParse, PacketizeValidate, p_dec );
163
164 p_sys->b_sequence_header = false;
165 p_sys->sh.p_sh = NULL;
166 p_sys->b_entry_point = false;
167 p_sys->ep.p_ep = NULL;
168
169 p_sys->i_frame_dts = VLC_TS_INVALID;
170 p_sys->i_frame_pts = VLC_TS_INVALID;
171
172 p_sys->b_frame = false;
173 p_sys->p_frame = NULL;
174 p_sys->pp_last = &p_sys->p_frame;
175
176 p_sys->i_interpolated_dts = VLC_TS_INVALID;
177 p_sys->b_check_startcode = p_dec->fmt_in.b_packetized;
178
179 if( p_dec->fmt_out.i_extra > 0 )
180 {
181 uint8_t *p_extra = p_dec->fmt_out.p_extra;
182
183 /* With (some) ASF the first byte has to be stripped */
184 if( p_extra[0] != 0x00 )
185 {
186 memmove( &p_extra[0], &p_extra[1], p_dec->fmt_out.i_extra - 1 );
187 p_dec->fmt_out.i_extra--;
188 }
189
190 /* */
191 if( p_dec->fmt_out.i_extra > 0 )
192 packetizer_Header( &p_sys->packetizer,
193 p_dec->fmt_out.p_extra, p_dec->fmt_out.i_extra );
194 }
195
196 /* */
197 p_sys->i_cc_pts = VLC_TS_INVALID;
198 p_sys->i_cc_dts = VLC_TS_INVALID;
199 p_sys->i_cc_flags = 0;
200 cc_Init( &p_sys->cc );
201 cc_Init( &p_sys->cc_next );
202
203 return VLC_SUCCESS;
204 }
205
206 /*****************************************************************************
207 * Close:
208 *****************************************************************************/
209 static void Close( vlc_object_t *p_this )
210 {
211 decoder_t *p_dec = (decoder_t*)p_this;
212 decoder_sys_t *p_sys = p_dec->p_sys;
213
214 packetizer_Clean( &p_sys->packetizer );
215 if( p_sys->p_frame )
216 block_Release( p_sys->p_frame );
217
218 cc_Exit( &p_sys->cc_next );
219 cc_Exit( &p_sys->cc );
220
221 free( p_sys );
222 }
223
224 /*****************************************************************************
225 * Packetize: packetize an access unit
226 *****************************************************************************/
227 static block_t *Packetize( decoder_t *p_dec, block_t **pp_block )
228 {
229 decoder_sys_t *p_sys = p_dec->p_sys;
230
231 if( p_sys->b_check_startcode && pp_block && *pp_block )
232 {
233 /* Fix syntax for (some?) VC1 from asf */
234 const unsigned i_startcode = sizeof(p_vc1_startcode);
235
236 block_t *p_block = *pp_block;
237 if( p_block->i_buffer > 0 &&
238 ( p_block->i_buffer < i_startcode ||
239 memcmp( p_block->p_buffer, p_vc1_startcode, i_startcode ) ) )
240 {
241 *pp_block = p_block = block_Realloc( p_block, i_startcode+1, p_block->i_buffer );
242 if( p_block )
243 {
244 memcpy( p_block->p_buffer, p_vc1_startcode, i_startcode );
245
246 if( p_sys->b_sequence_header && p_sys->sh.b_interlaced &&
247 p_block->i_buffer > i_startcode+1 &&
248 (p_block->p_buffer[i_startcode+1] & 0xc0) == 0xc0 )
249 p_block->p_buffer[i_startcode] = IDU_TYPE_FIELD;
250 else
251 p_block->p_buffer[i_startcode] = IDU_TYPE_FRAME;
252 }
253 }
254 p_sys->b_check_startcode = false;
255 }
256
257 block_t *p_au = packetizer_Packetize( &p_sys->packetizer, pp_block );
258 if( !p_au )
259 p_sys->b_check_startcode = p_dec->fmt_in.b_packetized;
260
261 return p_au;
262 }
263
264 static void Flush( decoder_t *p_dec )
265 {
266 decoder_sys_t *p_sys = p_dec->p_sys;
267
268 packetizer_Flush( &p_sys->packetizer );
269 }
270
271 static void PacketizeReset( void *p_private, bool b_broken )
272 {
273 decoder_t *p_dec = p_private;
274 decoder_sys_t *p_sys = p_dec->p_sys;
275
276 if( b_broken )
277 {
278 if( p_sys->p_frame )
279 block_ChainRelease( p_sys->p_frame );
280 p_sys->p_frame = NULL;
281 p_sys->pp_last = &p_sys->p_frame;
282 p_sys->b_frame = false;
283 }
284
285 p_sys->i_frame_dts = VLC_TS_INVALID;
286 p_sys->i_frame_pts = VLC_TS_INVALID;
287 p_sys->i_interpolated_dts = VLC_TS_INVALID;
288 }
289 static block_t *PacketizeParse( void *p_private, bool *pb_ts_used, block_t *p_block )
290 {
291 decoder_t *p_dec = p_private;
292
293 return ParseIDU( p_dec, pb_ts_used, p_block );
294 }
295
296 static int PacketizeValidate( void *p_private, block_t *p_au )
297 {
298 decoder_t *p_dec = p_private;
299 decoder_sys_t *p_sys = p_dec->p_sys;
300
301 if( p_sys->i_interpolated_dts <= VLC_TS_INVALID )
302 {
303 msg_Dbg( p_dec, "need a starting pts/dts" );
304 return VLC_EGENERIC;
305 }
306 VLC_UNUSED(p_au);
307 return VLC_SUCCESS;
308 }
309
310 /* BuildExtraData: gather sequence header and entry point */
311 static void BuildExtraData( decoder_t *p_dec )
312 {
313 decoder_sys_t *p_sys = p_dec->p_sys;
314 es_format_t *p_es = &p_dec->fmt_out;
315 int i_extra;
316 if( !p_sys->b_sequence_header || !p_sys->b_entry_point )
317 return;
318
319 i_extra = p_sys->sh.p_sh->i_buffer + p_sys->ep.p_ep->i_buffer;
320 if( p_es->i_extra != i_extra )
321 {
322 p_es->i_extra = i_extra;
323 p_es->p_extra = xrealloc( p_es->p_extra, p_es->i_extra );
324 }
325 memcpy( p_es->p_extra,
326 p_sys->sh.p_sh->p_buffer, p_sys->sh.p_sh->i_buffer );
327 memcpy( (uint8_t*)p_es->p_extra + p_sys->sh.p_sh->i_buffer,
328 p_sys->ep.p_ep->p_buffer, p_sys->ep.p_ep->i_buffer );
329 }
330 /* ParseIDU: parse an Independent Decoding Unit */
331 static block_t *ParseIDU( decoder_t *p_dec, bool *pb_ts_used, block_t *p_frag )
332 {
333 decoder_sys_t *p_sys = p_dec->p_sys;
334 block_t *p_pic;
335 const idu_type_t idu = p_frag->p_buffer[3];
336
337 *pb_ts_used = false;
338 if( !p_sys->b_sequence_header && idu != IDU_TYPE_SEQUENCE_HEADER )
339 {
340 msg_Warn( p_dec, "waiting for sequence header" );
341 block_Release( p_frag );
342 return NULL;
343 }
344 if( p_sys->b_sequence_header && !p_sys->b_entry_point && idu != IDU_TYPE_ENTRY_POINT )
345 {
346 msg_Warn( p_dec, "waiting for entry point" );
347 block_Release( p_frag );
348 return NULL;
349 }
350 /* TODO we do not gather ENTRY_POINT and SEQUENCE_DATA user data
351 * But It should not be a problem for decoder */
352
353 /* Do we have completed a frame */
354 p_pic = NULL;
355 if( p_sys->b_frame &&
356 idu != IDU_TYPE_FRAME_USER_DATA &&
357 idu != IDU_TYPE_FIELD && idu != IDU_TYPE_FIELD_USER_DATA &&
358 idu != IDU_TYPE_SLICE && idu != IDU_TYPE_SLICE_USER_DATA &&
359 idu != IDU_TYPE_END_OF_SEQUENCE )
360 {
361 /* Prepend SH and EP on I */
362 if( p_sys->p_frame->i_flags & BLOCK_FLAG_TYPE_I )
363 {
364 block_t *p_list = block_Duplicate( p_sys->sh.p_sh );
365 block_ChainAppend( &p_list, block_Duplicate( p_sys->ep.p_ep ) );
366 block_ChainAppend( &p_list, p_sys->p_frame );
367
368 p_list->i_flags = p_sys->p_frame->i_flags;
369
370 p_sys->p_frame = p_list;
371 }
372
373 /* */
374 p_pic = block_ChainGather( p_sys->p_frame );
375 p_pic->i_dts = p_sys->i_frame_dts;
376 p_pic->i_pts = p_sys->i_frame_pts;
377
378 /* */
379 if( p_pic->i_dts > VLC_TS_INVALID )
380 p_sys->i_interpolated_dts = p_pic->i_dts;
381
382 /* We can interpolate dts/pts only if we have a frame rate */
383 if( p_dec->fmt_out.video.i_frame_rate != 0 && p_dec->fmt_out.video.i_frame_rate_base != 0 )
384 {
385 if( p_sys->i_interpolated_dts > VLC_TS_INVALID )
386 p_sys->i_interpolated_dts += INT64_C(1000000) *
387 p_dec->fmt_out.video.i_frame_rate_base /
388 p_dec->fmt_out.video.i_frame_rate;
389
390 //msg_Dbg( p_dec, "-------------- XXX0 dts=%"PRId64" pts=%"PRId64" interpolated=%"PRId64,
391 // p_pic->i_dts, p_pic->i_pts, p_sys->i_interpolated_dts );
392 if( p_pic->i_dts <= VLC_TS_INVALID )
393 p_pic->i_dts = p_sys->i_interpolated_dts;
394
395 if( p_pic->i_pts <= VLC_TS_INVALID )
396 {
397 if( !p_sys->sh.b_has_bframe || (p_pic->i_flags & BLOCK_FLAG_TYPE_B ) )
398 p_pic->i_pts = p_pic->i_dts;
399 /* TODO compute pts for other case */
400 }
401 }
402
403 //msg_Dbg( p_dec, "-------------- dts=%"PRId64" pts=%"PRId64, p_pic->i_dts, p_pic->i_pts );
404
405 /* CC */
406 p_sys->i_cc_pts = p_pic->i_pts;
407 p_sys->i_cc_dts = p_pic->i_dts;
408 p_sys->i_cc_flags = p_pic->i_flags;
409
410 p_sys->cc = p_sys->cc_next;
411 cc_Flush( &p_sys->cc_next );
412
413 /* Reset context */
414 p_sys->b_frame = false;
415 p_sys->i_frame_dts = VLC_TS_INVALID;
416 p_sys->i_frame_pts = VLC_TS_INVALID;
417 p_sys->p_frame = NULL;
418 p_sys->pp_last = &p_sys->p_frame;
419 }
420
421 /* */
422 if( p_sys->i_frame_dts <= VLC_TS_INVALID && p_sys->i_frame_pts <= VLC_TS_INVALID )
423 {
424 p_sys->i_frame_dts = p_frag->i_dts;
425 p_sys->i_frame_pts = p_frag->i_pts;
426 *pb_ts_used = true;
427 }
428
429 /* We will add back SH and EP on I frames */
430 block_t *p_release = NULL;
431 if( idu != IDU_TYPE_SEQUENCE_HEADER && idu != IDU_TYPE_ENTRY_POINT )
432 block_ChainLastAppend( &p_sys->pp_last, p_frag );
433 else
434 p_release = p_frag;
435
436 /* Parse IDU */
437 if( idu == IDU_TYPE_SEQUENCE_HEADER )
438 {
439 es_format_t *p_es = &p_dec->fmt_out;
440 bs_t s;
441 unsigned i_bitflow = 0;
442 int i_profile;
443
444 /* */
445 if( p_sys->sh.p_sh )
446 block_Release( p_sys->sh.p_sh );
447 p_sys->sh.p_sh = block_Duplicate( p_frag );
448
449 /* Auto detect VC-1_SPMP_PESpacket_PayloadFormatHeader (SMPTE RP 227) for simple/main profile
450 * TODO find a test case and valid it */
451 if( p_frag->i_buffer > 8 && (p_frag->p_buffer[4]&0x80) == 0 ) /* for advanced profile, the first bit is 1 */
452 {
453 video_format_t *p_v = &p_dec->fmt_in.video;
454 const size_t i_potential_width = GetWBE( &p_frag->p_buffer[4] );
455 const size_t i_potential_height = GetWBE( &p_frag->p_buffer[6] );
456
457 if( i_potential_width >= 2 && i_potential_width <= 8192 &&
458 i_potential_height >= 2 && i_potential_height <= 8192 )
459 {
460 if( ( p_v->i_width <= 0 && p_v->i_height <= 0 ) ||
461 ( p_v->i_width == i_potential_width && p_v->i_height == i_potential_height ) )
462 {
463 static const uint8_t startcode[4] = { 0x00, 0x00, 0x01, IDU_TYPE_SEQUENCE_HEADER };
464 p_es->video.i_width = i_potential_width;
465 p_es->video.i_height = i_potential_height;
466
467 /* Remove it */
468 p_frag->p_buffer += 4;
469 p_frag->i_buffer -= 4;
470 memcpy( p_frag->p_buffer, startcode, sizeof(startcode) );
471 }
472 }
473 }
474
475 /* Parse it */
476 bs_init( &s, &p_frag->p_buffer[4], p_frag->i_buffer - 4 );
477 s.p_fwpriv = &i_bitflow;
478 s.pf_forward = hxxx_bsfw_ep3b_to_rbsp; /* Does the emulated 3bytes conversion to rbsp */
479
480 i_profile = bs_read( &s, 2 );
481 if( i_profile == 3 )
482 {
483 const int i_level = bs_read( &s, 3 );
484
485 /* Advanced profile */
486 p_sys->sh.b_advanced_profile = true;
487 p_sys->sh.b_range_reduction = false;
488 p_sys->sh.b_has_bframe = true;
489
490 bs_skip( &s, 2+3+5+1 ); // chroma format + frame rate Q + bit rate Q + postprocflag
491
492 p_es->video.i_width = 2*bs_read( &s, 12 )+2;
493 p_es->video.i_height = 2*bs_read( &s, 12 )+2;
494
495 if( !p_sys->b_sequence_header )
496 msg_Dbg( p_dec, "found sequence header for advanced profile level L%d resolution %dx%d",
497 i_level, p_es->video.i_width, p_es->video.i_height);
498
499 bs_skip( &s, 1 );// pulldown
500 p_sys->sh.b_interlaced = bs_read( &s, 1 );
501 bs_skip( &s, 1 );// frame counter
502 p_sys->sh.b_frame_interpolation = bs_read( &s, 1 );
503 bs_skip( &s, 1 ); // Reserved
504 bs_skip( &s, 1 ); // Psf
505
506 if( bs_read( &s, 1 ) ) /* Display extension */
507 {
508 const int i_display_width = bs_read( &s, 14 )+1;
509 const int i_display_height = bs_read( &s, 14 )+1;
510
511 p_es->video.i_sar_num = i_display_width * p_es->video.i_height;
512 p_es->video.i_sar_den = i_display_height * p_es->video.i_width;
513
514 if( !p_sys->b_sequence_header )
515 msg_Dbg( p_dec, "display size %dx%d", i_display_width, i_display_height );
516
517 if( bs_read( &s, 1 ) ) /* Pixel aspect ratio (PAR/SAR) */
518 {
519 static const unsigned p_ar[16][2] = {
520 { 0, 0}, { 1, 1}, {12,11}, {10,11}, {16,11}, {40,33},
521 {24,11}, {20,11}, {32,11}, {80,33}, {18,11}, {15,11},
522 {64,33}, {160,99},{ 0, 0}, { 0, 0}
523 };
524 int i_ar = bs_read( &s, 4 );
525 unsigned i_ar_w, i_ar_h;
526
527 if( i_ar == 15 )
528 {
529 i_ar_w = bs_read( &s, 8 );
530 i_ar_h = bs_read( &s, 8 );
531 }
532 else
533 {
534 i_ar_w = p_ar[i_ar][0];
535 i_ar_h = p_ar[i_ar][1];
536 }
537 vlc_ureduce( &i_ar_w, &i_ar_h, i_ar_w, i_ar_h, 0 );
538 if( !p_sys->b_sequence_header )
539 msg_Dbg( p_dec, "aspect ratio %d:%d", i_ar_w, i_ar_h );
540 }
541 }
542 if( bs_read( &s, 1 ) ) /* Frame rate */
543 {
544 unsigned i_fps_num = 0;
545 unsigned i_fps_den = 0;
546 if( bs_read( &s, 1 ) )
547 {
548 i_fps_num = bs_read( &s, 16 )+1;
549 i_fps_den = 32;
550 }
551 else
552 {
553 const int i_nr = bs_read( &s, 8 );
554 const int i_dn = bs_read( &s, 4 );
555
556 switch( i_nr )
557 {
558 case 1: i_fps_num = 24000; break;
559 case 2: i_fps_num = 25000; break;
560 case 3: i_fps_num = 30000; break;
561 case 4: i_fps_num = 50000; break;
562 case 5: i_fps_num = 60000; break;
563 case 6: i_fps_num = 48000; break;
564 case 7: i_fps_num = 72000; break;
565 }
566 switch( i_dn )
567 {
568 case 1: i_fps_den = 1000; break;
569 case 2: i_fps_den = 1001; break;
570 }
571 }
572 if( i_fps_num != 0 && i_fps_den != 0 )
573 vlc_ureduce( &p_es->video.i_frame_rate, &p_es->video.i_frame_rate_base, i_fps_num, i_fps_den, 0 );
574
575 if( !p_sys->b_sequence_header )
576 msg_Dbg( p_dec, "frame rate %d/%d", p_es->video.i_frame_rate, p_es->video.i_frame_rate_base );
577 }
578 if( bs_read1( &s ) ) /* Color Format */
579 {
580 switch( bs_read( &s, 8 ) ) /* Color Primaries */
581 {
582 case 1: p_es->video.primaries = COLOR_PRIMARIES_BT709; break;
583 case 4: p_es->video.primaries = COLOR_PRIMARIES_BT470_M; break;
584 case 5: p_es->video.primaries = COLOR_PRIMARIES_BT470_BG; break;
585 case 6: p_es->video.primaries = COLOR_PRIMARIES_SMTPE_RP145; break;
586 default: p_es->video.primaries = COLOR_PRIMARIES_UNDEF; break;
587 }
588
589 switch( bs_read( &s, 8 ) ) /* Transfert Chars */
590 {
591 case 1: p_es->video.transfer = TRANSFER_FUNC_BT709; break;
592 case 4: p_es->video.transfer = TRANSFER_FUNC_BT470_M; break;
593 case 5: p_es->video.transfer = TRANSFER_FUNC_BT470_BG; break;
594 case 6: p_es->video.transfer = TRANSFER_FUNC_SMPTE_170; break;
595 case 7: p_es->video.transfer = TRANSFER_FUNC_SMPTE_240; break;
596 case 8: p_es->video.transfer = TRANSFER_FUNC_LINEAR; break;
597 default: p_es->video.transfer = TRANSFER_FUNC_UNDEF; break;
598 }
599
600 switch( bs_read( &s, 8 ) ) /* Matrix Coef */
601 {
602 case 1: p_es->video.space = COLOR_SPACE_BT709; break;
603 case 6: p_es->video.space = COLOR_SPACE_BT601; break;
604 case 7: p_es->video.space = COLOR_SPACE_SMPTE_240; break;
605 default: p_es->video.space = COLOR_SPACE_UNDEF; break;
606 }
607 }
608 }
609 else
610 {
611 /* Simple and main profile */
612 p_sys->sh.b_advanced_profile = false;
613 p_sys->sh.b_interlaced = false;
614
615 if( !p_sys->b_sequence_header )
616 msg_Dbg( p_dec, "found sequence header for %s profile", i_profile == 0 ? "simple" : "main" );
617
618 bs_skip( &s, 2+3+5+1+1+ // reserved + frame rate Q + bit rate Q + loop filter + reserved
619 1+1+1+1+2+ // multiresolution + reserved + fast uv mc + extended mv + dquant
620 1+1+1+1 ); // variable size transform + reserved + overlap + sync marker
621 p_sys->sh.b_range_reduction = bs_read( &s, 1 );
622 if( bs_read( &s, 3 ) > 0 )
623 p_sys->sh.b_has_bframe = true;
624 else
625 p_sys->sh.b_has_bframe = false;
626 bs_skip( &s, 2 ); // quantizer
627
628 p_sys->sh.b_frame_interpolation = bs_read( &s, 1 );
629 }
630 p_sys->b_sequence_header = true;
631 BuildExtraData( p_dec );
632 }
633 else if( idu == IDU_TYPE_ENTRY_POINT )
634 {
635 if( p_sys->ep.p_ep )
636 block_Release( p_sys->ep.p_ep );
637 p_sys->ep.p_ep = block_Duplicate( p_frag );
638
639 if( !p_sys->b_entry_point )
640 msg_Dbg( p_dec, "found entry point" );
641
642 p_sys->b_entry_point = true;
643 BuildExtraData( p_dec );
644 }
645 else if( idu == IDU_TYPE_FRAME )
646 {
647 bs_t s;
648 unsigned i_bitflow = 0;
649
650 /* Parse it + interpolate pts/dts if possible */
651 bs_init( &s, &p_frag->p_buffer[4], p_frag->i_buffer - 4 );
652 s.p_fwpriv = &i_bitflow;
653 s.pf_forward = hxxx_bsfw_ep3b_to_rbsp; /* Does the emulated 3bytes conversion to rbsp */
654
655 if( p_sys->sh.b_advanced_profile )
656 {
657 int i_fcm = 0;
658
659 if( p_sys->sh.b_interlaced )
660 {
661 if( bs_read( &s, 1 ) )
662 {
663 if( bs_read( &s, 1 ) )
664 i_fcm = 1; /* interlaced field */
665 else
666 i_fcm = 2; /* interlaced frame */
667 }
668 }
669
670 if( i_fcm == 1 ) /*interlaced field */
671 {
672 /* XXX for mixed I/P we should check reference usage before marking them I (too much work) */
673 switch( bs_read( &s, 3 ) )
674 {
675 case 0: /* II */
676 case 1: /* IP */
677 case 2: /* PI */
678 p_sys->p_frame->i_flags |= BLOCK_FLAG_TYPE_I;
679 p_sys->p_frame->i_flags |= BLOCK_FLAG_TYPE_I;
680 p_sys->p_frame->i_flags |= BLOCK_FLAG_TYPE_I;
681 break;
682 case 3: /* PP */
683 p_sys->p_frame->i_flags |= BLOCK_FLAG_TYPE_P;
684 break;
685 case 4: /* BB */
686 case 5: /* BBi */
687 case 6: /* BiB */
688 case 7: /* BiBi */
689 p_sys->p_frame->i_flags |= BLOCK_FLAG_TYPE_B;
690 break;
691 }
692 }
693 else
694 {
695 if( !bs_read( &s, 1 ) )
696 p_sys->p_frame->i_flags |= BLOCK_FLAG_TYPE_P;
697 else if( !bs_read( &s, 1 ) )
698 p_sys->p_frame->i_flags |= BLOCK_FLAG_TYPE_B;
699 else if( !bs_read( &s, 1 ) )
700 p_sys->p_frame->i_flags |= BLOCK_FLAG_TYPE_I;
701 else if( !bs_read( &s, 1 ) )
702 p_sys->p_frame->i_flags |= BLOCK_FLAG_TYPE_B; /* Bi */
703 else
704 p_sys->p_frame->i_flags |= BLOCK_FLAG_TYPE_P; /* P Skip */
705 }
706 }
707 else
708 {
709 if( p_sys->sh.b_frame_interpolation )
710 bs_skip( &s, 1 ); // interpolate
711 bs_skip( &s, 2 ); // frame count
712 if( p_sys->sh.b_range_reduction )
713 bs_skip( &s, 1 ); // range reduction
714
715 if( bs_read( &s, 1 ) )
716 p_sys->p_frame->i_flags |= BLOCK_FLAG_TYPE_P;
717 else if( !p_sys->sh.b_has_bframe || bs_read( &s, 1 ) )
718 p_sys->p_frame->i_flags |= BLOCK_FLAG_TYPE_I;
719 else
720 p_sys->p_frame->i_flags |= BLOCK_FLAG_TYPE_B;
721 }
722 p_sys->b_frame = true;
723 }
724 else if( idu == IDU_TYPE_FRAME_USER_DATA )
725 {
726 bs_t s;
727 unsigned i_bitflow = 0;
728 const size_t i_size = p_frag->i_buffer - 4;
729 bs_init( &s, &p_frag->p_buffer[4], i_size );
730 s.p_fwpriv = &i_bitflow;
731 s.pf_forward = hxxx_bsfw_ep3b_to_rbsp; /* Does the emulated 3bytes conversion to rbsp */
732
733 unsigned i_data;
734 uint8_t *p_data = malloc( i_size );
735 if( p_data )
736 {
737 /* store converted data */
738 for( i_data = 0; i_data<i_size && bs_remain( &s ) >= 16 /* trailing 0x80 flush byte */; i_data++ )
739 p_data[i_data] = bs_read( &s, 8 );
740
741 /* TS 101 154 Auxiliary Data and VC-1 video */
742 static const uint8_t p_DVB1_user_identifier[] = {
743 0x47, 0x41, 0x39, 0x34 /* user identifier */
744 };
745
746 /* Check if we have DVB1_data() */
747 if( i_data >= sizeof(p_DVB1_user_identifier) &&
748 !memcmp( p_data, p_DVB1_user_identifier, sizeof(p_DVB1_user_identifier) ) )
749 {
750 cc_ProbeAndExtract( &p_sys->cc_next, true, p_data, i_data );
751 }
752
753 free( p_data );
754 }
755 }
756
757 if( p_release )
758 block_Release( p_release );
759 return p_pic;
760 }
761
762 /*****************************************************************************
763 * GetCc:
764 *****************************************************************************/
765 static block_t *GetCc( decoder_t *p_dec, bool pb_present[4], int *pi_reorder_depth )
766 {
767 decoder_sys_t *p_sys = p_dec->p_sys;
768 block_t *p_cc;
769 *pi_reorder_depth = p_sys->cc.b_reorder ? 4 : -1;
770
771 for( int i = 0; i < 4; i++ )
772 pb_present[i] = p_sys->cc.pb_present[i];
773
774 p_cc = block_Alloc( p_sys->cc.i_data);
775 if( p_cc )
776 {
777 memcpy( p_cc->p_buffer, p_sys->cc.p_data, p_sys->cc.i_data );
778 p_cc->i_dts =
779 p_cc->i_pts = p_sys->cc.b_reorder ? p_sys->i_cc_pts : p_sys->i_cc_dts;
780 p_cc->i_flags = p_sys->i_cc_flags & BLOCK_FLAG_TYPE_MASK;
781 }
782 cc_Flush( &p_sys->cc );
783 return p_cc;
784 }
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