1 /*****************************************************************************
2 * theora.c: theora decoder module making use of libtheora.
3 *****************************************************************************
4 * Copyright (C) 1999-2001 VideoLAN
7 * Authors: Gildas Bazin <gbazin@videolan.org>
9 * This program 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.
14 * This program 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.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
28 #include <vlc/decoder.h>
29 #include <vlc/input.h>
34 #include <theora/theora.h>
36 /*****************************************************************************
37 * decoder_sys_t : theora decoder descriptor
38 *****************************************************************************/
42 vlc_bool_t b_packetizer;
52 theora_info ti; /* theora bitstream settings */
53 theora_comment tc; /* theora comment header */
54 theora_state td; /* theora bitstream user comments */
62 /*****************************************************************************
64 *****************************************************************************/
65 static int OpenDecoder ( vlc_object_t * );
66 static int OpenPacketizer( vlc_object_t * );
67 static void CloseDecoder ( vlc_object_t * );
69 static void *DecodeBlock ( decoder_t *, block_t ** );
70 static int ProcessHeaders( decoder_t * );
71 static void *ProcessPacket ( decoder_t *, ogg_packet *, block_t ** );
73 static picture_t *DecodePacket( decoder_t *, ogg_packet * );
75 static void ParseTheoraComments( decoder_t * );
76 static void theora_CopyPicture( decoder_t *, picture_t *, yuv_buffer * );
78 static int OpenEncoder( vlc_object_t *p_this );
79 static void CloseEncoder( vlc_object_t *p_this );
80 static block_t *Encode( encoder_t *p_enc, picture_t *p_pict );
82 /*****************************************************************************
84 *****************************************************************************/
85 #define ENC_QUALITY_TEXT N_("Encoding quality")
86 #define ENC_QUALITY_LONGTEXT N_( \
87 "Allows you to specify a quality between 1 (low) and 10 (high), instead " \
88 "of specifying a particular bitrate. This will produce a VBR stream." )
91 set_category( CAT_INPUT );
92 set_subcategory( SUBCAT_INPUT_VCODEC );
93 set_description( _("Theora video decoder") );
94 set_capability( "decoder", 100 );
95 set_callbacks( OpenDecoder, CloseDecoder );
96 add_shortcut( "theora" );
99 set_description( _("Theora video packetizer") );
100 set_capability( "packetizer", 100 );
101 set_callbacks( OpenPacketizer, CloseDecoder );
102 add_shortcut( "theora" );
105 set_description( _("Theora video encoder") );
106 set_capability( "encoder", 100 );
107 set_callbacks( OpenEncoder, CloseEncoder );
108 add_shortcut( "theora" );
110 # define ENC_CFG_PREFIX "sout-theora-"
111 add_integer( ENC_CFG_PREFIX "quality", 2, NULL, ENC_QUALITY_TEXT,
112 ENC_QUALITY_LONGTEXT, VLC_FALSE );
115 static const char *ppsz_enc_options[] = {
119 /*****************************************************************************
120 * OpenDecoder: probe the decoder and return score
121 *****************************************************************************/
122 static int OpenDecoder( vlc_object_t *p_this )
124 decoder_t *p_dec = (decoder_t*)p_this;
125 decoder_sys_t *p_sys;
127 if( p_dec->fmt_in.i_codec != VLC_FOURCC('t','h','e','o') )
132 /* Allocate the memory needed to store the decoder's structure */
133 if( ( p_dec->p_sys = p_sys =
134 (decoder_sys_t *)malloc(sizeof(decoder_sys_t)) ) == NULL )
136 msg_Err( p_dec, "out of memory" );
139 p_dec->p_sys->b_packetizer = VLC_FALSE;
143 /* Set output properties */
144 p_dec->fmt_out.i_cat = VIDEO_ES;
145 p_dec->fmt_out.i_codec = VLC_FOURCC('I','4','2','0');
148 p_dec->pf_decode_video = (picture_t *(*)(decoder_t *, block_t **))
150 p_dec->pf_packetize = (block_t *(*)(decoder_t *, block_t **))
153 /* Init supporting Theora structures needed in header parsing */
154 theora_comment_init( &p_sys->tc );
155 theora_info_init( &p_sys->ti );
157 p_sys->i_headers = 0;
162 static int OpenPacketizer( vlc_object_t *p_this )
164 decoder_t *p_dec = (decoder_t*)p_this;
166 int i_ret = OpenDecoder( p_this );
168 if( i_ret == VLC_SUCCESS )
170 p_dec->p_sys->b_packetizer = VLC_TRUE;
171 p_dec->fmt_out.i_codec = VLC_FOURCC( 't', 'h', 'e', 'o' );
177 /****************************************************************************
178 * DecodeBlock: the whole thing
179 ****************************************************************************
180 * This function must be fed with ogg packets.
181 ****************************************************************************/
182 static void *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
184 decoder_sys_t *p_sys = p_dec->p_sys;
186 ogg_packet oggpacket;
188 if( !pp_block || !*pp_block ) return NULL;
192 /* Block to Ogg packet */
193 oggpacket.packet = p_block->p_buffer;
194 oggpacket.bytes = p_block->i_buffer;
195 oggpacket.granulepos = p_block->i_dts;
198 oggpacket.packetno = 0;
200 /* Check for headers */
201 if( p_sys->i_headers == 0 && p_dec->fmt_in.i_extra )
203 /* Headers already available as extra data */
204 p_sys->i_headers = 3;
206 else if( oggpacket.bytes && p_sys->i_headers < 3 )
208 /* Backup headers as extra data */
211 p_dec->fmt_in.p_extra =
212 realloc( p_dec->fmt_in.p_extra, p_dec->fmt_in.i_extra +
213 oggpacket.bytes + 2 );
214 p_extra = p_dec->fmt_in.p_extra + p_dec->fmt_in.i_extra;
215 *(p_extra++) = oggpacket.bytes >> 8;
216 *(p_extra++) = oggpacket.bytes & 0xFF;
218 memcpy( p_extra, oggpacket.packet, oggpacket.bytes );
219 p_dec->fmt_in.i_extra += oggpacket.bytes + 2;
221 block_Release( *pp_block );
226 if( p_sys->i_headers == 3 )
228 if( ProcessHeaders( p_dec ) != VLC_SUCCESS )
230 p_sys->i_headers = 0;
231 p_dec->fmt_in.i_extra = 0;
232 block_Release( *pp_block );
235 else p_sys->i_headers++;
238 return ProcessPacket( p_dec, &oggpacket, pp_block );
241 /*****************************************************************************
242 * ProcessHeaders: process Theora headers.
243 *****************************************************************************/
244 static int ProcessHeaders( decoder_t *p_dec )
246 decoder_sys_t *p_sys = p_dec->p_sys;
247 ogg_packet oggpacket;
251 if( !p_dec->fmt_in.i_extra ) return VLC_EGENERIC;
253 oggpacket.granulepos = -1;
254 oggpacket.b_o_s = 1; /* yes this actually is a b_o_s packet :) */
256 oggpacket.packetno = 0;
257 p_extra = p_dec->fmt_in.p_extra;
258 i_extra = p_dec->fmt_in.i_extra;
260 /* Take care of the initial Vorbis header */
261 oggpacket.bytes = *(p_extra++) << 8;
262 oggpacket.bytes |= (*(p_extra++) & 0xFF);
263 oggpacket.packet = p_extra;
264 p_extra += oggpacket.bytes;
265 i_extra -= (oggpacket.bytes + 2);
268 msg_Err( p_dec, "header data corrupted");
272 if( theora_decode_header( &p_sys->ti, &p_sys->tc, &oggpacket ) < 0 )
274 msg_Err( p_dec, "This bitstream does not contain Theora video data" );
278 /* Set output properties */
279 p_dec->fmt_out.video.i_width = p_sys->ti.width;
280 p_dec->fmt_out.video.i_height = p_sys->ti.height;
281 if( p_sys->ti.frame_width && p_sys->ti.frame_height )
283 p_dec->fmt_out.video.i_width = p_sys->ti.frame_width;
284 p_dec->fmt_out.video.i_height = p_sys->ti.frame_height;
287 if( p_sys->ti.aspect_denominator && p_sys->ti.aspect_numerator )
289 p_dec->fmt_out.video.i_aspect = ((int64_t)VOUT_ASPECT_FACTOR) *
290 ( p_sys->ti.aspect_numerator * p_sys->ti.width ) /
291 ( p_sys->ti.aspect_denominator * p_sys->ti.height );
295 p_dec->fmt_out.video.i_aspect = VOUT_ASPECT_FACTOR *
296 p_sys->ti.frame_width / p_sys->ti.frame_height;
299 if( p_sys->ti.fps_numerator > 0 && p_sys->ti.fps_denominator > 0 )
301 p_dec->fmt_out.video.i_frame_rate = p_sys->ti.fps_numerator;
302 p_dec->fmt_out.video.i_frame_rate_base = p_sys->ti.fps_denominator;
305 msg_Dbg( p_dec, "%dx%d %.02f fps video, frame content "
306 "is %dx%d with offset (%d,%d)",
307 p_sys->ti.width, p_sys->ti.height,
308 (double)p_sys->ti.fps_numerator/p_sys->ti.fps_denominator,
309 p_sys->ti.frame_width, p_sys->ti.frame_height,
310 p_sys->ti.offset_x, p_sys->ti.offset_y );
312 /* The next packet in order is the comments header */
314 oggpacket.bytes = *(p_extra++) << 8;
315 oggpacket.bytes |= (*(p_extra++) & 0xFF);
316 oggpacket.packet = p_extra;
317 p_extra += oggpacket.bytes;
318 i_extra -= (oggpacket.bytes + 2);
321 msg_Err( p_dec, "header data corrupted");
325 /* The next packet in order is the comments header */
326 if( theora_decode_header( &p_sys->ti, &p_sys->tc, &oggpacket ) < 0 )
328 msg_Err( p_dec, "2nd Theora header is corrupted" );
332 ParseTheoraComments( p_dec );
334 /* The next packet in order is the codebooks header
335 * We need to watch out that this packet is not missing as a
336 * missing or corrupted header is fatal. */
337 oggpacket.bytes = *(p_extra++) << 8;
338 oggpacket.bytes |= (*(p_extra++) & 0xFF);
339 oggpacket.packet = p_extra;
340 i_extra -= (oggpacket.bytes + 2);
343 msg_Err( p_dec, "header data corrupted");
347 /* The next packet in order is the codebooks header
348 * We need to watch out that this packet is not missing as a
349 * missing or corrupted header is fatal */
350 if( theora_decode_header( &p_sys->ti, &p_sys->tc, &oggpacket ) < 0 )
352 msg_Err( p_dec, "3rd Theora header is corrupted" );
356 if( !p_sys->b_packetizer )
358 /* We have all the headers, initialize decoder */
359 theora_decode_init( &p_sys->td, &p_sys->ti );
363 p_dec->fmt_out.i_extra = p_dec->fmt_in.i_extra;
364 p_dec->fmt_out.p_extra =
365 realloc( p_dec->fmt_out.p_extra, p_dec->fmt_out.i_extra );
366 memcpy( p_dec->fmt_out.p_extra,
367 p_dec->fmt_in.p_extra, p_dec->fmt_out.i_extra );
373 /*****************************************************************************
374 * ProcessPacket: processes a theora packet.
375 *****************************************************************************/
376 static void *ProcessPacket( decoder_t *p_dec, ogg_packet *p_oggpacket,
379 decoder_sys_t *p_sys = p_dec->p_sys;
380 block_t *p_block = *pp_block;
383 /* Date management */
384 if( p_block->i_pts > 0 && p_block->i_pts != p_sys->i_pts )
386 p_sys->i_pts = p_block->i_pts;
389 *pp_block = NULL; /* To avoid being fed the same packet again */
391 if( p_sys->b_packetizer )
393 /* Date management */
394 p_block->i_dts = p_block->i_pts = p_sys->i_pts;
396 if( p_sys->i_headers >= 3 )
397 p_block->i_length = p_sys->i_pts - p_block->i_pts;
399 p_block->i_length = 0;
405 if( p_sys->i_headers >= 3 )
406 p_buf = DecodePacket( p_dec, p_oggpacket );
410 if( p_block ) block_Release( p_block );
413 /* Date management */
414 p_sys->i_pts += ( I64C(1000000) * p_sys->ti.fps_denominator /
415 p_sys->ti.fps_numerator ); /* 1 frame per packet */
420 /*****************************************************************************
421 * DecodePacket: decodes a Theora packet.
422 *****************************************************************************/
423 static picture_t *DecodePacket( decoder_t *p_dec, ogg_packet *p_oggpacket )
425 decoder_sys_t *p_sys = p_dec->p_sys;
429 theora_decode_packetin( &p_sys->td, p_oggpacket );
432 theora_decode_YUVout( &p_sys->td, &yuv );
434 /* Get a new picture */
435 p_pic = p_dec->pf_vout_buffer_new( p_dec );
436 if( !p_pic ) return NULL;
438 theora_CopyPicture( p_dec, p_pic, &yuv );
440 p_pic->date = p_sys->i_pts;
445 /*****************************************************************************
446 * ParseTheoraComments: FIXME should be done in demuxer
447 *****************************************************************************/
448 static void ParseTheoraComments( decoder_t *p_dec )
450 input_thread_t *p_input = (input_thread_t *)p_dec->p_parent;
451 char *psz_name, *psz_value, *psz_comment;
454 if( p_input->i_object_type != VLC_OBJECT_INPUT ) return;
456 while ( i < p_dec->p_sys->tc.comments )
458 psz_comment = strdup( p_dec->p_sys->tc.user_comments[i] );
461 msg_Warn( p_dec, "out of memory" );
464 psz_name = psz_comment;
465 psz_value = strchr( psz_comment, '=' );
470 input_Control( p_input, INPUT_ADD_INFO, _("Theora comment"),
471 psz_name, psz_value );
478 /*****************************************************************************
479 * CloseDecoder: theora decoder destruction
480 *****************************************************************************/
481 static void CloseDecoder( vlc_object_t *p_this )
483 decoder_t *p_dec = (decoder_t *)p_this;
484 decoder_sys_t *p_sys = p_dec->p_sys;
486 theora_info_clear( &p_sys->ti );
487 theora_comment_clear( &p_sys->tc );
492 /*****************************************************************************
493 * theora_CopyPicture: copy a picture from theora internal buffers to a
494 * picture_t structure.
495 *****************************************************************************/
496 static void theora_CopyPicture( decoder_t *p_dec, picture_t *p_pic,
499 int i_plane, i_line, i_width, i_dst_stride, i_src_stride;
500 int i_src_xoffset, i_src_yoffset;
501 uint8_t *p_dst, *p_src;
503 for( i_plane = 0; i_plane < p_pic->i_planes; i_plane++ )
505 p_dst = p_pic->p[i_plane].p_pixels;
506 p_src = i_plane ? (i_plane - 1 ? yuv->v : yuv->u ) : yuv->y;
507 i_width = p_pic->p[i_plane].i_visible_pitch;
508 i_dst_stride = p_pic->p[i_plane].i_pitch;
509 i_src_stride = i_plane ? yuv->uv_stride : yuv->y_stride;
510 i_src_xoffset = p_dec->p_sys->ti.offset_x;
511 i_src_yoffset = p_dec->p_sys->ti.offset_y;
518 p_src += (i_src_yoffset * i_src_stride + i_src_yoffset);
520 for( i_line = 0; i_line < p_pic->p[i_plane].i_visible_lines; i_line++ )
522 p_dec->p_vlc->pf_memcpy( p_dst, p_src, i_width );
523 p_src += i_src_stride;
524 p_dst += i_dst_stride;
529 /*****************************************************************************
530 * encoder_sys_t : theora encoder descriptor
531 *****************************************************************************/
537 vlc_bool_t b_headers;
542 theora_info ti; /* theora bitstream settings */
543 theora_comment tc; /* theora comment header */
544 theora_state td; /* theora bitstream user comments */
546 int i_width, i_height;
549 /*****************************************************************************
550 * OpenEncoder: probe the encoder and return score
551 *****************************************************************************/
552 static int OpenEncoder( vlc_object_t *p_this )
554 encoder_t *p_enc = (encoder_t *)p_this;
555 encoder_sys_t *p_sys = p_enc->p_sys;
561 if( p_enc->fmt_out.i_codec != VLC_FOURCC('t','h','e','o') &&
567 /* Allocate the memory needed to store the decoder's structure */
568 if( ( p_sys = (encoder_sys_t *)malloc(sizeof(encoder_sys_t)) ) == NULL )
570 msg_Err( p_enc, "out of memory" );
573 p_enc->p_sys = p_sys;
575 p_enc->pf_encode_video = Encode;
576 p_enc->fmt_in.i_codec = VLC_FOURCC('I','4','2','0');
577 p_enc->fmt_out.i_codec = VLC_FOURCC('t','h','e','o');
579 sout_CfgParse( p_enc, ENC_CFG_PREFIX, ppsz_enc_options, p_enc->p_cfg );
581 var_Get( p_enc, ENC_CFG_PREFIX "quality", &val );
582 i_quality = val.i_int;
583 if( i_quality > 10 ) i_quality = 10;
584 if( i_quality < 0 ) i_quality = 0;
586 theora_info_init( &p_sys->ti );
588 p_sys->ti.width = p_enc->fmt_in.video.i_width;
589 p_sys->ti.height = p_enc->fmt_in.video.i_height;
591 if( p_sys->ti.width % 16 || p_sys->ti.height % 16 )
593 /* Pictures from the transcoder should always have a pitch
594 * which is a multiple of 16 */
595 p_sys->ti.width = (p_sys->ti.width + 15) >> 4 << 4;
596 p_sys->ti.height = (p_sys->ti.height + 15) >> 4 << 4;
598 msg_Dbg( p_enc, "padding video from %dx%d to %dx%d",
599 p_enc->fmt_in.video.i_width, p_enc->fmt_in.video.i_height,
600 p_sys->ti.width, p_sys->ti.height );
603 p_sys->ti.frame_width = p_enc->fmt_in.video.i_width;
604 p_sys->ti.frame_height = p_enc->fmt_in.video.i_height;
605 p_sys->ti.offset_x = 0 /*frame_x_offset*/;
606 p_sys->ti.offset_y = 0 /*frame_y_offset*/;
608 p_sys->i_width = p_sys->ti.width;
609 p_sys->i_height = p_sys->ti.height;
611 if( !p_enc->fmt_in.video.i_frame_rate ||
612 !p_enc->fmt_in.video.i_frame_rate_base )
614 p_sys->ti.fps_numerator = 25;
615 p_sys->ti.fps_denominator = 1;
619 p_sys->ti.fps_numerator = p_enc->fmt_in.video.i_frame_rate;
620 p_sys->ti.fps_denominator = p_enc->fmt_in.video.i_frame_rate_base;
623 if( p_enc->fmt_in.video.i_aspect )
625 int64_t i_num, i_den;
626 int i_dst_num, i_dst_den;
628 i_num = p_enc->fmt_in.video.i_aspect * (int64_t)p_sys->ti.height;
629 i_den = VOUT_ASPECT_FACTOR * p_sys->ti.width;
630 vlc_reduce( &i_dst_num, &i_dst_den, i_num, i_den, 0 );
631 p_sys->ti.aspect_numerator = i_dst_num;
632 p_sys->ti.aspect_denominator = i_dst_den;
636 p_sys->ti.aspect_numerator = 4;
637 p_sys->ti.aspect_denominator = 3;
640 p_sys->ti.target_bitrate = p_enc->fmt_out.i_bitrate;
641 p_sys->ti.quality = ((float)i_quality) * 6.3;
643 p_sys->ti.dropframes_p = 0;
644 p_sys->ti.quick_p = 1;
645 p_sys->ti.keyframe_auto_p = 1;
646 p_sys->ti.keyframe_frequency = 64;
647 p_sys->ti.keyframe_frequency_force = 64;
648 p_sys->ti.keyframe_data_target_bitrate = p_enc->fmt_out.i_bitrate * 1.5;
649 p_sys->ti.keyframe_auto_threshold = 80;
650 p_sys->ti.keyframe_mindistance = 8;
651 p_sys->ti.noise_sensitivity = 1;
653 theora_encode_init( &p_sys->td, &p_sys->ti );
654 theora_info_clear( &p_sys->ti );
655 theora_comment_init( &p_sys->tc );
657 /* Create and store headers */
658 p_enc->fmt_out.i_extra = 3 * 2;
659 for( i = 0; i < 3; i++ )
661 if( i == 0 ) theora_encode_header( &p_sys->td, &header );
662 else if( i == 1 ) theora_encode_comment( &p_sys->tc, &header );
663 else if( i == 2 ) theora_encode_tables( &p_sys->td, &header );
665 p_enc->fmt_out.p_extra =
666 realloc( p_enc->fmt_out.p_extra,
667 p_enc->fmt_out.i_extra + header.bytes );
668 p_extra = p_enc->fmt_out.p_extra;
669 p_extra += p_enc->fmt_out.i_extra + (i-3)*2;
670 p_enc->fmt_out.i_extra += header.bytes;
672 *(p_extra++) = header.bytes >> 8;
673 *(p_extra++) = header.bytes & 0xFF;
675 memcpy( p_extra, header.packet, header.bytes );
681 /****************************************************************************
682 * Encode: the whole thing
683 ****************************************************************************
684 * This function spits out ogg packets.
685 ****************************************************************************/
686 static block_t *Encode( encoder_t *p_enc, picture_t *p_pict )
688 encoder_sys_t *p_sys = p_enc->p_sys;
689 ogg_packet oggpacket;
695 if( p_pict->p[0].i_pitch < (int)p_sys->i_width ||
696 p_pict->p[0].i_lines < (int)p_sys->i_height )
698 msg_Warn( p_enc, "frame is smaller than encoding size"
699 "(%ix%i->%ix%i) -> dropping frame",
700 p_pict->p[0].i_pitch, p_pict->p[0].i_lines,
701 p_sys->i_width, p_sys->i_height );
706 if( p_pict->p[0].i_visible_pitch < (int)p_sys->i_width )
708 for( i = 0; i < p_sys->i_height; i++ )
710 memset( p_pict->p[0].p_pixels + i * p_pict->p[0].i_pitch +
711 p_pict->p[0].i_visible_pitch,
712 *( p_pict->p[0].p_pixels + i * p_pict->p[0].i_pitch +
713 p_pict->p[0].i_visible_pitch - 1 ),
714 p_sys->i_width - p_pict->p[0].i_visible_pitch );
716 for( i = 0; i < p_sys->i_height / 2; i++ )
718 memset( p_pict->p[1].p_pixels + i * p_pict->p[1].i_pitch +
719 p_pict->p[1].i_visible_pitch,
720 *( p_pict->p[1].p_pixels + i * p_pict->p[1].i_pitch +
721 p_pict->p[1].i_visible_pitch - 1 ),
722 p_sys->i_width / 2 - p_pict->p[1].i_visible_pitch );
723 memset( p_pict->p[2].p_pixels + i * p_pict->p[2].i_pitch +
724 p_pict->p[2].i_visible_pitch,
725 *( p_pict->p[2].p_pixels + i * p_pict->p[2].i_pitch +
726 p_pict->p[2].i_visible_pitch - 1 ),
727 p_sys->i_width / 2 - p_pict->p[2].i_visible_pitch );
731 if( p_pict->p[0].i_visible_lines < (int)p_sys->i_height )
733 for( i = p_pict->p[0].i_visible_lines; i < p_sys->i_height; i++ )
735 memset( p_pict->p[0].p_pixels + i * p_pict->p[0].i_pitch, 0,
738 for( i = p_pict->p[1].i_visible_lines; i < p_sys->i_height / 2; i++ )
740 memset( p_pict->p[1].p_pixels + i * p_pict->p[1].i_pitch, 0x80,
741 p_sys->i_width / 2 );
742 memset( p_pict->p[2].p_pixels + i * p_pict->p[2].i_pitch, 0x80,
743 p_sys->i_width / 2 );
747 /* Theora is a one-frame-in, one-frame-out system. Submit a frame
748 * for compression and pull out the packet. */
750 yuv.y_width = p_sys->i_width;
751 yuv.y_height = p_sys->i_height;
752 yuv.y_stride = p_pict->p[0].i_pitch;
754 yuv.uv_width = p_sys->i_width / 2;
755 yuv.uv_height = p_sys->i_height / 2;
756 yuv.uv_stride = p_pict->p[1].i_pitch;
758 yuv.y = p_pict->p[0].p_pixels;
759 yuv.u = p_pict->p[1].p_pixels;
760 yuv.v = p_pict->p[2].p_pixels;
762 if( theora_encode_YUVin( &p_sys->td, &yuv ) < 0 )
764 msg_Warn( p_enc, "failed encoding a frame" );
768 theora_encode_packetout( &p_sys->td, 0, &oggpacket );
770 /* Ogg packet to block */
771 p_block = block_New( p_enc, oggpacket.bytes );
772 memcpy( p_block->p_buffer, oggpacket.packet, oggpacket.bytes );
773 p_block->i_dts = p_block->i_pts = p_pict->date;
778 /*****************************************************************************
779 * CloseEncoder: theora encoder destruction
780 *****************************************************************************/
781 static void CloseEncoder( vlc_object_t *p_this )
783 encoder_t *p_enc = (encoder_t *)p_this;
784 encoder_sys_t *p_sys = p_enc->p_sys;
786 theora_info_clear( &p_sys->ti );
787 theora_comment_clear( &p_sys->tc );