10 // video capture cvars
11 static cvar_t cl_capturevideo_ogg_theora_quality = {CVAR_SAVE, "cl_capturevideo_ogg_theora_quality", "32", "video quality factor (0 to 63), or -1 to use bitrate only; higher is better"};
12 static cvar_t cl_capturevideo_ogg_theora_bitrate = {CVAR_SAVE, "cl_capturevideo_ogg_theora_bitrate", "-1", "video bitrate (45 to 2000 kbps), or -1 to use quality only; higher is better"};
13 static cvar_t cl_capturevideo_ogg_theora_keyframe_bitrate_multiplier = {CVAR_SAVE, "cl_capturevideo_ogg_theora_keyframe_bitrate_multiplier", "1.5", "how much more bit rate to use for keyframes, specified as a factor of at least 1"};
14 static cvar_t cl_capturevideo_ogg_theora_keyframe_maxinterval = {CVAR_SAVE, "cl_capturevideo_ogg_theora_keyframe_maxinterval", "64", "maximum keyframe interval (1 to 1000)"};
15 static cvar_t cl_capturevideo_ogg_theora_keyframe_mininterval = {CVAR_SAVE, "cl_capturevideo_ogg_theora_keyframe_mininterval", "8", "minimum keyframe interval (1 to 1000)"};
16 static cvar_t cl_capturevideo_ogg_theora_keyframe_auto_threshold = {CVAR_SAVE, "cl_capturevideo_ogg_theora_keyframe_auto_threshold", "80", "threshold for key frame decision (0 to 100)"};
17 static cvar_t cl_capturevideo_ogg_theora_noise_sensitivity = {CVAR_SAVE, "cl_capturevideo_ogg_theora_noise_sensitivity", "1", "video noise sensitivity (0 to 6); lower is better"};
18 static cvar_t cl_capturevideo_ogg_theora_sharpness = {CVAR_SAVE, "cl_capturevideo_ogg_theora_sharpness", "0", "sharpness (0 to 2); lower is sharper"};
19 static cvar_t cl_capturevideo_ogg_vorbis_quality = {CVAR_SAVE, "cl_capturevideo_ogg_vorbis_quality", "3", "audio quality (-1 to 10); higher is better"};
23 typedef __int16 ogg_int16_t;
24 typedef unsigned __int16 ogg_uint16_t;
25 typedef __int32 ogg_int32_t;
26 typedef unsigned __int32 ogg_uint32_t;
27 typedef __int64 ogg_int64_t;
29 typedef int16_t ogg_int16_t;
30 typedef uint16_t ogg_uint16_t;
31 typedef int32_t ogg_int32_t;
32 typedef uint32_t ogg_uint32_t;
33 typedef int64_t ogg_int64_t;
40 unsigned char *buffer;
45 /* ogg_page is used to encapsulate the data in one Ogg bitstream page *****/
48 unsigned char *header;
54 /* ogg_stream_state contains the current encode/decode state of a logical
55 Ogg bitstream **********************************************************/
58 unsigned char *body_data; /* bytes from packet bodies */
59 long body_storage; /* storage elements allocated */
60 long body_fill; /* elements stored; fill mark */
61 long body_returned; /* elements of fill returned */
64 int *lacing_vals; /* The values that will go to the segment table */
65 ogg_int64_t *granule_vals; /* granulepos values for headers. Not compact
66 this way, but it is simple coupled to the
73 unsigned char header[282]; /* working space for header encode */
76 int e_o_s; /* set when we have buffered the last packet in the
78 int b_o_s; /* set after we've written the initial page
79 of a logical bitstream */
82 ogg_int64_t packetno; /* sequence number for decode; the framing
83 knows where there's a hole in the data,
84 but we need coupling so that the codec
85 (which is in a seperate abstraction
86 layer) also knows about the gap */
87 ogg_int64_t granulepos;
91 /* ogg_packet is used to encapsulate the data and metadata belonging
92 to a single raw Ogg/Vorbis packet *************************************/
95 unsigned char *packet;
100 ogg_int64_t granulepos;
102 ogg_int64_t packetno; /* sequence number for decode; the framing
103 knows where there's a hole in the data,
104 but we need coupling so that the codec
105 (which is in a seperate abstraction
106 layer) also knows about the gap */
120 /* Ogg BITSTREAM PRIMITIVES: encoding **************************/
122 static int (*qogg_stream_packetin) (ogg_stream_state *os, ogg_packet *op);
123 static int (*qogg_stream_pageout) (ogg_stream_state *os, ogg_page *og);
124 static int (*qogg_stream_flush) (ogg_stream_state *os, ogg_page *og);
126 /* Ogg BITSTREAM PRIMITIVES: general ***************************/
128 static int (*qogg_stream_init) (ogg_stream_state *os,int serialno);
129 static int (*qogg_stream_clear) (ogg_stream_state *os);
130 static ogg_int64_t (*qogg_page_granulepos) (ogg_page *og);
132 // end of ogg.h stuff
134 // vorbis/codec.h stuff
135 typedef struct vorbis_info{
140 /* The below bitrate declarations are *hints*.
141 Combinations of the three values carry the following implications:
143 all three set to the same value:
144 implies a fixed rate bitstream
146 implies a VBR stream that averages the nominal bitrate. No hard
148 upper and or lower set:
149 implies a VBR bitstream that obeys the bitrate limits. nominal
150 may also be set to give a nominal rate.
152 the coder does not care to speculate.
156 long bitrate_nominal;
163 /* vorbis_dsp_state buffers the current vorbis audio
164 analysis/synthesis state. The DSP state belongs to a specific
165 logical bitstream ****************************************************/
166 typedef struct vorbis_dsp_state{
184 ogg_int64_t granulepos;
185 ogg_int64_t sequence;
187 ogg_int64_t glue_bits;
188 ogg_int64_t time_bits;
189 ogg_int64_t floor_bits;
190 ogg_int64_t res_bits;
195 typedef struct vorbis_block{
196 /* necessary stream state for linking to the framing abstraction */
197 float **pcm; /* this is a pointer into local storage */
207 ogg_int64_t granulepos;
208 ogg_int64_t sequence;
209 vorbis_dsp_state *vd; /* For read-only access of configuration */
211 /* local storage to avoid remallocing; it's up to the mapping to
217 struct alloc_chain *reap;
219 /* bitmetrics for the frame */
229 /* vorbis_block is a single block of data to be processed as part of
230 the analysis/synthesis stream; it belongs to a specific logical
231 bitstream, but is independant from other vorbis_blocks belonging to
232 that logical bitstream. *************************************************/
236 struct alloc_chain *next;
239 /* vorbis_info contains all the setup information specific to the
240 specific compression/decompression mode in progress (eg,
241 psychoacoustic settings, channel setup, options, codebook
242 etc). vorbis_info and substructures are in backends.h.
243 *********************************************************************/
245 /* the comments are not part of vorbis_info so that vorbis_info can be
247 typedef struct vorbis_comment{
248 /* unlimited user comment fields. libvorbis writes 'libvorbis'
249 whatever vendor is set to in encode */
250 char **user_comments;
251 int *comment_lengths;
258 /* libvorbis encodes in two abstraction layers; first we perform DSP
259 and produce a packet (see docs/analysis.txt). The packet is then
260 coded into a framed OggSquish bitstream by the second layer (see
261 docs/framing.txt). Decode is the reverse process; we sync/frame
262 the bitstream and extract individual packets, then decode the
263 packet back into PCM audio.
265 The extra framing/packetizing is used in streaming formats, such as
266 files. Over the net (such as with UDP), the framing and
267 packetization aren't necessary as they're provided by the transport
268 and the streaming layer is not used */
270 /* Vorbis PRIMITIVES: general ***************************************/
272 static void (*qvorbis_info_init) (vorbis_info *vi);
273 static void (*qvorbis_info_clear) (vorbis_info *vi);
274 static void (*qvorbis_comment_init) (vorbis_comment *vc);
275 static void (*qvorbis_comment_clear) (vorbis_comment *vc);
277 static int (*qvorbis_block_init) (vorbis_dsp_state *v, vorbis_block *vb);
278 static int (*qvorbis_block_clear) (vorbis_block *vb);
279 static void (*qvorbis_dsp_clear) (vorbis_dsp_state *v);
280 static double (*qvorbis_granule_time) (vorbis_dsp_state *v,
281 ogg_int64_t granulepos);
283 /* Vorbis PRIMITIVES: analysis/DSP layer ****************************/
285 static int (*qvorbis_analysis_init) (vorbis_dsp_state *v,vorbis_info *vi);
286 static int (*qvorbis_commentheader_out) (vorbis_comment *vc, ogg_packet *op);
287 static int (*qvorbis_analysis_headerout) (vorbis_dsp_state *v,
291 ogg_packet *op_code);
292 static float ** (*qvorbis_analysis_buffer) (vorbis_dsp_state *v,int vals);
293 static int (*qvorbis_analysis_wrote) (vorbis_dsp_state *v,int vals);
294 static int (*qvorbis_analysis_blockout) (vorbis_dsp_state *v,vorbis_block *vb);
295 static int (*qvorbis_analysis) (vorbis_block *vb,ogg_packet *op);
297 static int (*qvorbis_bitrate_addblock) (vorbis_block *vb);
298 static int (*qvorbis_bitrate_flushpacket) (vorbis_dsp_state *vd,
301 // end of vorbis/codec.h stuff
304 static int (*qvorbis_encode_init_vbr) (vorbis_info *vi,
308 float base_quality /* quality level from 0. (lo) to 1. (hi) */
310 // end of vorbisenc.h stuff
314 int y_width; /**< Width of the Y' luminance plane */
315 int y_height; /**< Height of the luminance plane */
316 int y_stride; /**< Offset in bytes between successive rows */
318 int uv_width; /**< Width of the Cb and Cr chroma planes */
319 int uv_height; /**< Height of the chroma planes */
320 int uv_stride; /**< Offset between successive chroma rows */
321 unsigned char *y; /**< Pointer to start of luminance data */
322 unsigned char *u; /**< Pointer to start of Cb data */
323 unsigned char *v; /**< Pointer to start of Cr data */
331 OC_CS_UNSPECIFIED, /**< The colorspace is unknown or unspecified */
332 OC_CS_ITU_REC_470M, /**< This is the best option for 'NTSC' content */
333 OC_CS_ITU_REC_470BG, /**< This is the best option for 'PAL' content */
334 OC_CS_NSPACES /**< This marks the end of the defined colorspaces */
338 * A Chroma subsampling
340 * These enumerate the available chroma subsampling options supported
341 * by the theora format. See Section 4.4 of the specification for
345 OC_PF_420, /**< Chroma subsampling by 2 in each direction (4:2:0) */
346 OC_PF_RSVD, /**< Reserved value */
347 OC_PF_422, /**< Horizonatal chroma subsampling by 2 (4:2:2) */
348 OC_PF_444, /**< No chroma subsampling at all (4:4:4) */
349 } theora_pixelformat;
351 * Theora bitstream info.
352 * Contains the basic playback parameters for a stream,
353 * corresponding to the initial 'info' header packet.
355 * Encoded theora frames must be a multiple of 16 in width and height.
356 * To handle other frame sizes, a crop rectangle is specified in
357 * frame_height and frame_width, offset_x and * offset_y. The offset
358 * and size should still be a multiple of 2 to avoid chroma sampling
359 * shifts. Offset values in this structure are measured from the
360 * upper left of the image.
362 * Frame rate, in frames per second, is stored as a rational
363 * fraction. Aspect ratio is also stored as a rational fraction, and
364 * refers to the aspect ratio of the frame pixels, not of the
365 * overall frame itself.
367 * See <a href="http://svn.xiph.org/trunk/theora/examples/encoder_example.c">
368 * examples/encoder_example.c</a> for usage examples of the
369 * other paramters and good default settings for the encoder parameters.
372 ogg_uint32_t width; /**< encoded frame width */
373 ogg_uint32_t height; /**< encoded frame height */
374 ogg_uint32_t frame_width; /**< display frame width */
375 ogg_uint32_t frame_height; /**< display frame height */
376 ogg_uint32_t offset_x; /**< horizontal offset of the displayed frame */
377 ogg_uint32_t offset_y; /**< vertical offset of the displayed frame */
378 ogg_uint32_t fps_numerator; /**< frame rate numerator **/
379 ogg_uint32_t fps_denominator; /**< frame rate denominator **/
380 ogg_uint32_t aspect_numerator; /**< pixel aspect ratio numerator */
381 ogg_uint32_t aspect_denominator; /**< pixel aspect ratio denominator */
382 theora_colorspace colorspace; /**< colorspace */
383 int target_bitrate; /**< nominal bitrate in bits per second */
384 int quality; /**< Nominal quality setting, 0-63 */
385 int quick_p; /**< Quick encode/decode */
388 unsigned char version_major;
389 unsigned char version_minor;
390 unsigned char version_subminor;
397 ogg_uint32_t keyframe_frequency;
398 ogg_uint32_t keyframe_frequency_force; /* also used for decode init to
399 get granpos shift correct */
400 ogg_uint32_t keyframe_data_target_bitrate;
401 ogg_int32_t keyframe_auto_threshold;
402 ogg_uint32_t keyframe_mindistance;
403 ogg_int32_t noise_sensitivity;
404 ogg_int32_t sharpness;
406 theora_pixelformat pixelformat; /**< chroma subsampling mode to expect */
410 /** Codec internal state and context.
414 ogg_int64_t granulepos;
416 void *internal_encode;
417 void *internal_decode;
422 * Comment header metadata.
424 * This structure holds the in-stream metadata corresponding to
425 * the 'comment' header packet.
427 * Meta data is stored as a series of (tag, value) pairs, in
428 * length-encoded string vectors. The first occurence of the
429 * '=' character delimits the tag and value. A particular tag
430 * may occur more than once. The character set encoding for
431 * the strings is always UTF-8, but the tag names are limited
432 * to case-insensitive ASCII. See the spec for details.
434 * In filling in this structure, qtheora_decode_header() will
435 * null-terminate the user_comment strings for safety. However,
436 * the bitstream format itself treats them as 8-bit clean,
437 * and so the length array should be treated as authoritative
440 typedef struct theora_comment{
441 char **user_comments; /**< An array of comment string vectors */
442 int *comment_lengths; /**< An array of corresponding string vector lengths in bytes */
443 int comments; /**< The total number of comment string vectors */
444 char *vendor; /**< The vendor string identifying the encoder, null terminated */
447 static int (*qtheora_encode_init) (theora_state *th, theora_info *ti);
448 static int (*qtheora_encode_YUVin) (theora_state *t, yuv_buffer *yuv);
449 static int (*qtheora_encode_packetout) ( theora_state *t, int last_p,
451 static int (*qtheora_encode_header) (theora_state *t, ogg_packet *op);
452 static int (*qtheora_encode_comment) (theora_comment *tc, ogg_packet *op);
453 static int (*qtheora_encode_tables) (theora_state *t, ogg_packet *op);
454 static void (*qtheora_info_init) (theora_info *c);
455 static void (*qtheora_info_clear) (theora_info *c);
456 static void (*qtheora_clear) (theora_state *t);
457 static void (*qtheora_comment_init) (theora_comment *tc);
458 static void (*qtheora_comment_clear) (theora_comment *tc);
459 static double (*qtheora_granule_time) (theora_state *th,ogg_int64_t granulepos);
460 // end of theora.h stuff
462 static dllfunction_t oggfuncs[] =
464 {"ogg_stream_packetin", (void **) &qogg_stream_packetin},
465 {"ogg_stream_pageout", (void **) &qogg_stream_pageout},
466 {"ogg_stream_flush", (void **) &qogg_stream_flush},
467 {"ogg_stream_init", (void **) &qogg_stream_init},
468 {"ogg_stream_clear", (void **) &qogg_stream_clear},
469 {"ogg_page_granulepos", (void **) &qogg_page_granulepos},
473 static dllfunction_t vorbisencfuncs[] =
475 {"vorbis_encode_init_vbr", (void **) &qvorbis_encode_init_vbr},
479 static dllfunction_t vorbisfuncs[] =
481 {"vorbis_info_init", (void **) &qvorbis_info_init},
482 {"vorbis_info_clear", (void **) &qvorbis_info_clear},
483 {"vorbis_comment_init", (void **) &qvorbis_comment_init},
484 {"vorbis_comment_clear", (void **) &qvorbis_comment_clear},
485 {"vorbis_block_init", (void **) &qvorbis_block_init},
486 {"vorbis_block_clear", (void **) &qvorbis_block_clear},
487 {"vorbis_dsp_clear", (void **) &qvorbis_dsp_clear},
488 {"vorbis_analysis_init", (void **) &qvorbis_analysis_init},
489 {"vorbis_commentheader_out", (void **) &qvorbis_commentheader_out},
490 {"vorbis_analysis_headerout", (void **) &qvorbis_analysis_headerout},
491 {"vorbis_analysis_buffer", (void **) &qvorbis_analysis_buffer},
492 {"vorbis_analysis_wrote", (void **) &qvorbis_analysis_wrote},
493 {"vorbis_analysis_blockout", (void **) &qvorbis_analysis_blockout},
494 {"vorbis_analysis", (void **) &qvorbis_analysis},
495 {"vorbis_bitrate_addblock", (void **) &qvorbis_bitrate_addblock},
496 {"vorbis_bitrate_flushpacket", (void **) &qvorbis_bitrate_flushpacket},
497 {"vorbis_granule_time", (void **) &qvorbis_granule_time},
501 static dllfunction_t theorafuncs[] =
503 {"theora_info_init", (void **) &qtheora_info_init},
504 {"theora_info_clear", (void **) &qtheora_info_clear},
505 {"theora_comment_init", (void **) &qtheora_comment_init},
506 {"theora_comment_clear", (void **) &qtheora_comment_clear},
507 {"theora_encode_init", (void **) &qtheora_encode_init},
508 {"theora_encode_YUVin", (void **) &qtheora_encode_YUVin},
509 {"theora_encode_packetout", (void **) &qtheora_encode_packetout},
510 {"theora_encode_header", (void **) &qtheora_encode_header},
511 {"theora_encode_comment", (void **) &qtheora_encode_comment},
512 {"theora_encode_tables", (void **) &qtheora_encode_tables},
513 {"theora_clear", (void **) &qtheora_clear},
514 {"theora_granule_time", (void **) &qtheora_granule_time},
518 static dllhandle_t og_dll = NULL, vo_dll = NULL, ve_dll = NULL, th_dll = NULL;
520 qboolean SCR_CaptureVideo_Ogg_OpenLibrary(void)
522 const char* dllnames_og [] =
527 #elif defined(MACOSX)
535 const char* dllnames_vo [] =
540 #elif defined(MACOSX)
548 const char* dllnames_ve [] =
553 #elif defined(MACOSX)
554 "libvorbisenc.dylib",
561 const char* dllnames_th [] =
566 #elif defined(MACOSX)
576 Sys_LoadLibrary (dllnames_og, &og_dll, oggfuncs)
578 Sys_LoadLibrary (dllnames_th, &th_dll, theorafuncs)
580 Sys_LoadLibrary (dllnames_vo, &vo_dll, vorbisfuncs)
582 Sys_LoadLibrary (dllnames_ve, &ve_dll, vorbisencfuncs);
585 void SCR_CaptureVideo_Ogg_Init(void)
587 SCR_CaptureVideo_Ogg_OpenLibrary();
589 Cvar_RegisterVariable(&cl_capturevideo_ogg_theora_quality);
590 Cvar_RegisterVariable(&cl_capturevideo_ogg_theora_bitrate);
591 Cvar_RegisterVariable(&cl_capturevideo_ogg_theora_keyframe_bitrate_multiplier);
592 Cvar_RegisterVariable(&cl_capturevideo_ogg_theora_keyframe_maxinterval);
593 Cvar_RegisterVariable(&cl_capturevideo_ogg_theora_keyframe_mininterval);
594 Cvar_RegisterVariable(&cl_capturevideo_ogg_theora_keyframe_auto_threshold);
595 Cvar_RegisterVariable(&cl_capturevideo_ogg_theora_noise_sensitivity);
596 Cvar_RegisterVariable(&cl_capturevideo_ogg_vorbis_quality);
599 qboolean SCR_CaptureVideo_Ogg_Available(void)
601 return og_dll && th_dll && vo_dll && ve_dll;
604 void SCR_CaptureVideo_Ogg_CloseDLL(void)
606 Sys_UnloadLibrary (&ve_dll);
607 Sys_UnloadLibrary (&vo_dll);
608 Sys_UnloadLibrary (&th_dll);
609 Sys_UnloadLibrary (&og_dll);
612 // this struct should not be needed
613 // however, libogg appears to pull the ogg_page's data element away from our
614 // feet before we get to write the data due to interleaving
615 // so this struct is used to keep the page data around until it actually gets
617 typedef struct allocatedoggpage_s
621 unsigned char data[65307];
622 // this number is from RFC 3533. In case libogg writes more, we'll have to increase this
623 // but we'll get a Host_Error in this case so we can track it down
627 typedef struct capturevideostate_ogg_formatspecific_s
629 ogg_stream_state to, vo;
630 int serial1, serial2;
640 allocatedoggpage_t videopage, audiopage;
642 capturevideostate_ogg_formatspecific_t;
643 #define LOAD_FORMATSPECIFIC_OGG() capturevideostate_ogg_formatspecific_t *format = (capturevideostate_ogg_formatspecific_t *) cls.capturevideo.formatspecific
645 static void SCR_CaptureVideo_Ogg_Interleave(void)
647 LOAD_FORMATSPECIFIC_OGG();
650 if(!cls.capturevideo.soundrate)
652 while(qogg_stream_pageout(&format->to, &pg) > 0)
654 FS_Write(cls.capturevideo.videofile, pg.header, pg.header_len);
655 FS_Write(cls.capturevideo.videofile, pg.body, pg.body_len);
662 // first: make sure we have a page of both types
663 if(!format->videopage.len)
664 if(qogg_stream_pageout(&format->to, &pg) > 0)
666 format->videopage.len = pg.header_len + pg.body_len;
667 format->videopage.time = qtheora_granule_time(&format->ts, qogg_page_granulepos(&pg));
668 if(format->videopage.len > sizeof(format->videopage.data))
669 Host_Error("video page too long");
670 memcpy(format->videopage.data, pg.header, pg.header_len);
671 memcpy(format->videopage.data + pg.header_len, pg.body, pg.body_len);
673 if(!format->audiopage.len)
674 if(qogg_stream_pageout(&format->vo, &pg) > 0)
676 format->audiopage.len = pg.header_len + pg.body_len;
677 format->audiopage.time = qvorbis_granule_time(&format->vd, qogg_page_granulepos(&pg));
678 if(format->audiopage.len > sizeof(format->audiopage.data))
679 Host_Error("audio page too long");
680 memcpy(format->audiopage.data, pg.header, pg.header_len);
681 memcpy(format->audiopage.data + pg.header_len, pg.body, pg.body_len);
684 if(format->videopage.len && format->audiopage.len)
686 // output the page that ends first
687 if(format->videopage.time < format->audiopage.time)
689 FS_Write(cls.capturevideo.videofile, format->videopage.data, format->videopage.len);
690 format->videopage.len = 0;
694 FS_Write(cls.capturevideo.videofile, format->audiopage.data, format->audiopage.len);
695 format->audiopage.len = 0;
703 static void SCR_CaptureVideo_Ogg_FlushInterleaving(void)
705 LOAD_FORMATSPECIFIC_OGG();
707 if(cls.capturevideo.soundrate)
708 if(format->audiopage.len)
710 FS_Write(cls.capturevideo.videofile, format->audiopage.data, format->audiopage.len);
711 format->audiopage.len = 0;
714 if(format->videopage.len)
716 FS_Write(cls.capturevideo.videofile, format->videopage.data, format->videopage.len);
717 format->videopage.len = 0;
721 static void SCR_CaptureVideo_Ogg_EndVideo(void)
723 LOAD_FORMATSPECIFIC_OGG();
727 if(format->yuvi >= 0)
729 // send the previous (and last) frame
730 while(format->lastnum-- > 0)
732 qtheora_encode_YUVin(&format->ts, &format->yuv[format->yuvi]);
734 while(qtheora_encode_packetout(&format->ts, !format->lastnum, &pt))
735 qogg_stream_packetin(&format->to, &pt);
737 SCR_CaptureVideo_Ogg_Interleave();
741 if(cls.capturevideo.soundrate)
743 qvorbis_analysis_wrote(&format->vd, 0);
744 while(qvorbis_analysis_blockout(&format->vd, &format->vb) == 1)
746 qvorbis_analysis(&format->vb, NULL);
747 qvorbis_bitrate_addblock(&format->vb);
748 while(qvorbis_bitrate_flushpacket(&format->vd, &pt))
749 qogg_stream_packetin(&format->vo, &pt);
750 SCR_CaptureVideo_Ogg_Interleave();
754 SCR_CaptureVideo_Ogg_FlushInterleaving();
756 while(qogg_stream_pageout(&format->to, &pg) > 0)
758 FS_Write(cls.capturevideo.videofile, pg.header, pg.header_len);
759 FS_Write(cls.capturevideo.videofile, pg.body, pg.body_len);
762 if(cls.capturevideo.soundrate)
764 while(qogg_stream_pageout(&format->vo, &pg) > 0)
766 FS_Write(cls.capturevideo.videofile, pg.header, pg.header_len);
767 FS_Write(cls.capturevideo.videofile, pg.body, pg.body_len);
772 int result = qogg_stream_flush (&format->to, &pg);
774 fprintf (stderr, "Internal Ogg library error.\n"); // TODO Host_Error
777 FS_Write(cls.capturevideo.videofile, pg.header, pg.header_len);
778 FS_Write(cls.capturevideo.videofile, pg.body, pg.body_len);
781 if(cls.capturevideo.soundrate)
784 int result = qogg_stream_flush (&format->vo, &pg);
786 fprintf (stderr, "Internal Ogg library error.\n"); // TODO Host_Error
789 FS_Write(cls.capturevideo.videofile, pg.header, pg.header_len);
790 FS_Write(cls.capturevideo.videofile, pg.body, pg.body_len);
793 qogg_stream_clear(&format->vo);
794 qvorbis_block_clear(&format->vb);
795 qvorbis_dsp_clear(&format->vd);
798 qogg_stream_clear(&format->to);
799 qtheora_clear(&format->ts);
800 qvorbis_info_clear(&format->vi);
802 Mem_Free(format->yuv[0].y);
803 Mem_Free(format->yuv[0].u);
804 Mem_Free(format->yuv[0].v);
805 Mem_Free(format->yuv[1].y);
806 Mem_Free(format->yuv[1].u);
807 Mem_Free(format->yuv[1].v);
810 FS_Close(cls.capturevideo.videofile);
811 cls.capturevideo.videofile = NULL;
814 static void SCR_CaptureVideo_Ogg_ConvertFrame_BGRA_to_YUV(void)
816 LOAD_FORMATSPECIFIC_OGG();
819 int blockr, blockg, blockb;
820 unsigned char *b = cls.capturevideo.outbuffer;
821 int w = cls.capturevideo.width;
822 int h = cls.capturevideo.height;
825 yuv = &format->yuv[format->yuvi];
827 for(y = 0; y < h; ++y)
829 for(b = cls.capturevideo.outbuffer + (h-1-y)*w*4, x = 0; x < w; ++x)
834 yuv->y[x + yuv->y_stride * y] =
835 cls.capturevideo.yuvnormalizetable[0][cls.capturevideo.rgbtoyuvscaletable[0][0][blockr] + cls.capturevideo.rgbtoyuvscaletable[0][1][blockg] + cls.capturevideo.rgbtoyuvscaletable[0][2][blockb]];
841 for(b = cls.capturevideo.outbuffer + (h-2-y)*w*4, x = 0; x < w/2; ++x)
843 blockr = (b[2] + b[6] + b[inpitch+2] + b[inpitch+6]) >> 2;
844 blockg = (b[1] + b[5] + b[inpitch+1] + b[inpitch+5]) >> 2;
845 blockb = (b[0] + b[4] + b[inpitch+0] + b[inpitch+4]) >> 2;
846 yuv->u[x + yuv->uv_stride * (y/2)] =
847 cls.capturevideo.yuvnormalizetable[1][cls.capturevideo.rgbtoyuvscaletable[1][0][blockr] + cls.capturevideo.rgbtoyuvscaletable[1][1][blockg] + cls.capturevideo.rgbtoyuvscaletable[1][2][blockb] + 128];
848 yuv->v[x + yuv->uv_stride * (y/2)] =
849 cls.capturevideo.yuvnormalizetable[2][cls.capturevideo.rgbtoyuvscaletable[2][0][blockr] + cls.capturevideo.rgbtoyuvscaletable[2][1][blockg] + cls.capturevideo.rgbtoyuvscaletable[2][2][blockb] + 128];
856 static void SCR_CaptureVideo_Ogg_VideoFrames(int num)
858 LOAD_FORMATSPECIFIC_OGG();
861 // data is in cls.capturevideo.outbuffer as BGRA and has size width*height
863 if(format->yuvi >= 0)
865 // send the previous frame
866 while(format->lastnum-- > 0)
868 qtheora_encode_YUVin(&format->ts, &format->yuv[format->yuvi]);
870 while(qtheora_encode_packetout(&format->ts, false, &pt))
871 qogg_stream_packetin(&format->to, &pt);
873 SCR_CaptureVideo_Ogg_Interleave();
877 format->yuvi = (format->yuvi + 1) % 2;
878 SCR_CaptureVideo_Ogg_ConvertFrame_BGRA_to_YUV();
879 format->lastnum = num;
881 // TODO maybe send num-1 frames from here already
884 typedef int channelmapping_t[8];
885 channelmapping_t mapping[8] =
887 { 0, -1, -1, -1, -1, -1, -1, -1 }, // mono
888 { 0, 1, -1, -1, -1, -1, -1, -1 }, // stereo
889 { 0, 1, 2, -1, -1, -1, -1, -1 }, // L C R
890 { 0, 1, 2, 3, -1, -1, -1, -1 }, // surround40
891 { 0, 2, 3, 4, 1, -1, -1, -1 }, // FL FC FR RL RR
892 { 0, 2, 3, 4, 1, 5, -1, -1 }, // surround51
893 { 0, 2, 3, 4, 1, 5, 6, -1 }, // (not defined by vorbis spec)
894 { 0, 2, 3, 4, 1, 5, 6, 7 } // surround71 (not defined by vorbis spec)
897 static void SCR_CaptureVideo_Ogg_SoundFrame(const portable_sampleframe_t *paintbuffer, size_t length)
899 LOAD_FORMATSPECIFIC_OGG();
900 float **vorbis_buffer;
904 int *map = mapping[bound(1, cls.capturevideo.soundchannels, 8) - 1];
906 vorbis_buffer = qvorbis_analysis_buffer(&format->vd, length);
907 for(j = 0; j < cls.capturevideo.soundchannels; ++j)
909 float *b = vorbis_buffer[map[j]];
910 for(i = 0; i < length; ++i)
911 b[i] = paintbuffer[i].sample[j] / 32768.0f;
913 qvorbis_analysis_wrote(&format->vd, length);
915 while(qvorbis_analysis_blockout(&format->vd, &format->vb) == 1)
917 qvorbis_analysis(&format->vb, NULL);
918 qvorbis_bitrate_addblock(&format->vb);
920 while(qvorbis_bitrate_flushpacket(&format->vd, &pt))
921 qogg_stream_packetin(&format->vo, &pt);
924 SCR_CaptureVideo_Ogg_Interleave();
927 void SCR_CaptureVideo_Ogg_BeginVideo(void)
929 cls.capturevideo.format = CAPTUREVIDEOFORMAT_OGG_VORBIS_THEORA;
930 cls.capturevideo.formatextension = "ogv";
931 cls.capturevideo.videofile = FS_OpenRealFile(va("%s.%s", cls.capturevideo.basename, cls.capturevideo.formatextension), "wb", false);
932 cls.capturevideo.endvideo = SCR_CaptureVideo_Ogg_EndVideo;
933 cls.capturevideo.videoframes = SCR_CaptureVideo_Ogg_VideoFrames;
934 cls.capturevideo.soundframe = SCR_CaptureVideo_Ogg_SoundFrame;
935 cls.capturevideo.formatspecific = Mem_Alloc(tempmempool, sizeof(capturevideostate_ogg_formatspecific_t));
937 LOAD_FORMATSPECIFIC_OGG();
940 ogg_packet pt, pt2, pt3;
945 format->serial1 = rand();
946 qogg_stream_init(&format->to, format->serial1);
948 if(cls.capturevideo.soundrate)
952 format->serial2 = rand();
954 while(format->serial1 == format->serial2);
955 qogg_stream_init(&format->vo, format->serial2);
958 format->videopage.len = format->audiopage.len = 0;
960 qtheora_info_init(&ti);
961 ti.frame_width = cls.capturevideo.width;
962 ti.frame_height = cls.capturevideo.height;
963 ti.width = (ti.frame_width + 15) & ~15;
964 ti.height = (ti.frame_height + 15) & ~15;
965 //ti.offset_x = ((ti.width - ti.frame_width) / 2) & ~1;
966 //ti.offset_y = ((ti.height - ti.frame_height) / 2) & ~1;
968 for(i = 0; i < 2; ++i)
970 format->yuv[i].y_width = ti.width;
971 format->yuv[i].y_height = ti.height;
972 format->yuv[i].y_stride = ti.width;
973 format->yuv[i].uv_width = ti.width / 2;
974 format->yuv[i].uv_height = ti.height / 2;
975 format->yuv[i].uv_stride = ti.width / 2;
976 format->yuv[i].y = (unsigned char *) Mem_Alloc(tempmempool, format->yuv[i].y_stride * format->yuv[i].y_height);
977 format->yuv[i].u = (unsigned char *) Mem_Alloc(tempmempool, format->yuv[i].uv_stride * format->yuv[i].uv_height);
978 format->yuv[i].v = (unsigned char *) Mem_Alloc(tempmempool, format->yuv[i].uv_stride * format->yuv[i].uv_height);
980 format->yuvi = -1; // -1: no frame valid yet, write into 0
982 FindFraction(cls.capturevideo.framerate / cls.capturevideo.framestep, &num, &denom, 1001);
983 ti.fps_numerator = num;
984 ti.fps_denominator = denom;
986 FindFraction(1 / vid_pixelheight.value, &num, &denom, 1000);
987 ti.aspect_numerator = num;
988 ti.aspect_denominator = denom;
990 ti.colorspace = OC_CS_UNSPECIFIED;
991 ti.pixelformat = OC_PF_420;
993 ti.quick_p = true; // http://mlblog.osdir.com/multimedia.ogg.theora.general/2004-07/index.shtml
994 ti.dropframes_p = false;
996 ti.target_bitrate = cl_capturevideo_ogg_theora_bitrate.integer * 1000;
997 ti.quality = cl_capturevideo_ogg_theora_quality.integer;
999 if(ti.target_bitrate <= 0)
1003 ti.target_bitrate = -1;
1004 ti.keyframe_data_target_bitrate = (unsigned int)-1;
1009 ti.target_bitrate = -1;
1010 ti.keyframe_data_target_bitrate = (unsigned int)-1;
1011 ti.quality = bound(0, ti.quality, 63);
1018 ti.target_bitrate = bound(45000, ti.target_bitrate, 2000000);
1019 ti.keyframe_data_target_bitrate = (int) (ti.target_bitrate * max(1, cl_capturevideo_ogg_theora_keyframe_bitrate_multiplier.value));
1024 ti.target_bitrate = bound(45000, ti.target_bitrate, 2000000);
1025 ti.keyframe_data_target_bitrate = (int) (ti.target_bitrate * max(1, cl_capturevideo_ogg_theora_keyframe_bitrate_multiplier.value));
1030 // this -1 magic is because ti.keyframe_frequency and ti.keyframe_mindistance use different metrics
1031 ti.keyframe_frequency = bound(1, cl_capturevideo_ogg_theora_keyframe_maxinterval.integer, 1000);
1032 ti.keyframe_mindistance = bound(1, cl_capturevideo_ogg_theora_keyframe_mininterval.integer, (int) ti.keyframe_frequency) - 1;
1033 ti.noise_sensitivity = bound(0, cl_capturevideo_ogg_theora_noise_sensitivity.integer, 6);
1034 ti.sharpness = bound(0, cl_capturevideo_ogg_theora_sharpness.integer, 2);
1035 ti.keyframe_auto_threshold = bound(0, cl_capturevideo_ogg_theora_keyframe_auto_threshold.integer, 100);
1037 ti.keyframe_frequency_force = ti.keyframe_frequency;
1038 ti.keyframe_auto_p = (ti.keyframe_frequency != ti.keyframe_mindistance + 1);
1040 qtheora_encode_init(&format->ts, &ti);
1041 qtheora_info_clear(&ti);
1044 if(cls.capturevideo.soundrate)
1046 qvorbis_info_init(&format->vi);
1047 qvorbis_encode_init_vbr(&format->vi, cls.capturevideo.soundchannels, cls.capturevideo.soundrate, bound(-1, cl_capturevideo_ogg_vorbis_quality.value, 10) * 0.099);
1048 qvorbis_comment_init(&vc);
1049 qvorbis_analysis_init(&format->vd, &format->vi);
1050 qvorbis_block_init(&format->vd, &format->vb);
1053 qtheora_comment_init(&tc);
1055 /* create the remaining theora headers */
1056 qtheora_encode_header(&format->ts, &pt);
1057 qogg_stream_packetin(&format->to, &pt);
1058 if (qogg_stream_pageout (&format->to, &pg) != 1)
1059 fprintf (stderr, "Internal Ogg library error.\n");
1060 FS_Write(cls.capturevideo.videofile, pg.header, pg.header_len);
1061 FS_Write(cls.capturevideo.videofile, pg.body, pg.body_len);
1063 qtheora_encode_comment(&tc, &pt);
1064 qogg_stream_packetin(&format->to, &pt);
1065 qtheora_encode_tables(&format->ts, &pt);
1066 qogg_stream_packetin (&format->to, &pt);
1068 qtheora_comment_clear(&tc);
1070 if(cls.capturevideo.soundrate)
1072 qvorbis_analysis_headerout(&format->vd, &vc, &pt, &pt2, &pt3);
1073 qogg_stream_packetin(&format->vo, &pt);
1074 if (qogg_stream_pageout (&format->vo, &pg) != 1)
1075 fprintf (stderr, "Internal Ogg library error.\n");
1076 FS_Write(cls.capturevideo.videofile, pg.header, pg.header_len);
1077 FS_Write(cls.capturevideo.videofile, pg.body, pg.body_len);
1079 qogg_stream_packetin(&format->vo, &pt2);
1080 qogg_stream_packetin(&format->vo, &pt3);
1082 qvorbis_comment_clear(&vc);
1087 int result = qogg_stream_flush (&format->to, &pg);
1089 fprintf (stderr, "Internal Ogg library error.\n"); // TODO Host_Error
1092 FS_Write(cls.capturevideo.videofile, pg.header, pg.header_len);
1093 FS_Write(cls.capturevideo.videofile, pg.body, pg.body_len);
1096 if(cls.capturevideo.soundrate)
1099 int result = qogg_stream_flush (&format->vo, &pg);
1101 fprintf (stderr, "Internal Ogg library error.\n"); // TODO Host_Error
1104 FS_Write(cls.capturevideo.videofile, pg.header, pg.header_len);
1105 FS_Write(cls.capturevideo.videofile, pg.body, pg.body_len);