2 * Interface to xvidcore for mpeg4 encoding
3 * Copyright (c) 2004 Adam Thayer <krevnik@comcast.net>
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 * Interface to xvidcore for MPEG-4 compliant encoding.
25 * @author Adam Thayer (krevnik@comcast.net)
31 #include "libxvid_internal.h"
34 * Buffer management macros.
36 #define BUFFER_SIZE 1024
37 #define BUFFER_REMAINING(x) (BUFFER_SIZE - strlen(x))
38 #define BUFFER_CAT(x) (&((x)[strlen(x)]))
41 extern int has_altivec(void);
44 * Structure for the private Xvid context.
45 * This stores all the private context for the codec.
47 typedef struct xvid_context {
48 void *encoder_handle; /** Handle for Xvid encoder */
49 int xsize, ysize; /** Frame size */
50 int vop_flags; /** VOP flags for Xvid encoder */
51 int vol_flags; /** VOL flags for Xvid encoder */
52 int me_flags; /** Motion Estimation flags */
53 int qscale; /** Do we use constant scale? */
54 int quicktime_format; /** Are we in a QT-based format? */
55 AVFrame encoded_picture; /** Encoded frame information */
56 char *twopassbuffer; /** Character buffer for two-pass */
57 char *old_twopassbuffer; /** Old character buffer (two-pass) */
58 char *twopassfile; /** second pass temp file name */
59 unsigned char *intra_matrix; /** P-Frame Quant Matrix */
60 unsigned char *inter_matrix; /** I-Frame Quant Matrix */
64 * Structure for the private first-pass plugin.
66 typedef struct xvid_ff_pass1 {
67 int version; /** Xvid version */
68 xvid_context_t *context; /** Pointer to private context */
71 /* Prototypes - See function implementation for details */
72 int xvid_strip_vol_header(AVCodecContext *avctx, unsigned char *frame, unsigned int header_len, unsigned int frame_len);
73 int xvid_ff_2pass(void *ref, int opt, void *p1, void *p2);
74 void xvid_correct_framerate(AVCodecContext *avctx);
77 * Creates the private context for the encoder.
78 * All buffers are allocated, settings are loaded from the user,
79 * and the encoder context created.
81 * @param avctx AVCodecContext pointer to context
82 * @return Returns 0 on success, -1 on failure
84 av_cold int ff_xvid_encode_init(AVCodecContext *avctx) {
86 int xvid_flags = avctx->flags;
87 xvid_context_t *x = avctx->priv_data;
88 uint16_t *intra, *inter;
91 xvid_plugin_single_t single;
92 xvid_ff_pass1_t rc2pass1;
93 xvid_plugin_2pass2_t rc2pass2;
94 xvid_gbl_init_t xvid_gbl_init;
95 xvid_enc_create_t xvid_enc_create;
96 xvid_enc_plugin_t plugins[7];
98 /* Bring in VOP flags from ffmpeg command-line */
99 x->vop_flags = XVID_VOP_HALFPEL; /* Bare minimum quality */
100 if( xvid_flags & CODEC_FLAG_4MV )
101 x->vop_flags |= XVID_VOP_INTER4V; /* Level 3 */
103 #if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0)
104 || xvid_flags & CODEC_FLAG_TRELLIS_QUANT
107 x->vop_flags |= XVID_VOP_TRELLISQUANT; /* Level 5 */
108 if( xvid_flags & CODEC_FLAG_AC_PRED )
109 x->vop_flags |= XVID_VOP_HQACPRED; /* Level 6 */
110 if( xvid_flags & CODEC_FLAG_GRAY )
111 x->vop_flags |= XVID_VOP_GREYSCALE;
113 /* Decide which ME quality setting to use */
115 switch( avctx->me_method ) {
116 case ME_FULL: /* Quality 6 */
117 x->me_flags |= XVID_ME_EXTSEARCH16
118 | XVID_ME_EXTSEARCH8;
120 case ME_EPZS: /* Quality 4 */
121 x->me_flags |= XVID_ME_ADVANCEDDIAMOND8
122 | XVID_ME_HALFPELREFINE8
123 | XVID_ME_CHROMA_PVOP
124 | XVID_ME_CHROMA_BVOP;
126 case ME_LOG: /* Quality 2 */
129 x->me_flags |= XVID_ME_ADVANCEDDIAMOND16
130 | XVID_ME_HALFPELREFINE16;
132 case ME_ZERO: /* Quality 0 */
137 /* Decide how we should decide blocks */
138 switch( avctx->mb_decision ) {
140 x->vop_flags |= XVID_VOP_MODEDECISION_RD;
141 x->me_flags |= XVID_ME_HALFPELREFINE8_RD
142 | XVID_ME_QUARTERPELREFINE8_RD
143 | XVID_ME_EXTSEARCH_RD
144 | XVID_ME_CHECKPREDICTION_RD;
146 if( !(x->vop_flags & XVID_VOP_MODEDECISION_RD) )
147 x->vop_flags |= XVID_VOP_FAST_MODEDECISION_RD;
148 x->me_flags |= XVID_ME_HALFPELREFINE16_RD
149 | XVID_ME_QUARTERPELREFINE16_RD;
155 /* Bring in VOL flags from ffmpeg command-line */
157 if( xvid_flags & CODEC_FLAG_GMC ) {
158 x->vol_flags |= XVID_VOL_GMC;
159 x->me_flags |= XVID_ME_GME_REFINE;
161 if( xvid_flags & CODEC_FLAG_QPEL ) {
162 x->vol_flags |= XVID_VOL_QUARTERPEL;
163 x->me_flags |= XVID_ME_QUARTERPELREFINE16;
164 if( x->vop_flags & XVID_VOP_INTER4V )
165 x->me_flags |= XVID_ME_QUARTERPELREFINE8;
168 memset(&xvid_gbl_init, 0, sizeof(xvid_gbl_init));
169 xvid_gbl_init.version = XVID_VERSION;
170 xvid_gbl_init.debug = 0;
173 /* Xvid's PPC support is borked, use libavcodec to detect */
175 if( has_altivec() ) {
176 xvid_gbl_init.cpu_flags = XVID_CPU_FORCE | XVID_CPU_ALTIVEC;
179 xvid_gbl_init.cpu_flags = XVID_CPU_FORCE;
181 /* Xvid can detect on x86 */
182 xvid_gbl_init.cpu_flags = 0;
186 xvid_global(NULL, XVID_GBL_INIT, &xvid_gbl_init, NULL);
188 /* Create the encoder reference */
189 memset(&xvid_enc_create, 0, sizeof(xvid_enc_create));
190 xvid_enc_create.version = XVID_VERSION;
192 /* Store the desired frame size */
193 xvid_enc_create.width = x->xsize = avctx->width;
194 xvid_enc_create.height = x->ysize = avctx->height;
196 /* Xvid can determine the proper profile to use */
197 /* xvid_enc_create.profile = XVID_PROFILE_S_L3; */
199 /* We don't use zones */
200 xvid_enc_create.zones = NULL;
201 xvid_enc_create.num_zones = 0;
203 xvid_enc_create.num_threads = avctx->thread_count;
205 xvid_enc_create.plugins = plugins;
206 xvid_enc_create.num_plugins = 0;
208 /* Initialize Buffers */
209 x->twopassbuffer = NULL;
210 x->old_twopassbuffer = NULL;
211 x->twopassfile = NULL;
213 if( xvid_flags & CODEC_FLAG_PASS1 ) {
214 memset(&rc2pass1, 0, sizeof(xvid_ff_pass1_t));
215 rc2pass1.version = XVID_VERSION;
216 rc2pass1.context = x;
217 x->twopassbuffer = av_malloc(BUFFER_SIZE);
218 x->old_twopassbuffer = av_malloc(BUFFER_SIZE);
219 if( x->twopassbuffer == NULL || x->old_twopassbuffer == NULL ) {
220 av_log(avctx, AV_LOG_ERROR,
221 "Xvid: Cannot allocate 2-pass log buffers\n");
224 x->twopassbuffer[0] = x->old_twopassbuffer[0] = 0;
226 plugins[xvid_enc_create.num_plugins].func = xvid_ff_2pass;
227 plugins[xvid_enc_create.num_plugins].param = &rc2pass1;
228 xvid_enc_create.num_plugins++;
229 } else if( xvid_flags & CODEC_FLAG_PASS2 ) {
230 memset(&rc2pass2, 0, sizeof(xvid_plugin_2pass2_t));
231 rc2pass2.version = XVID_VERSION;
232 rc2pass2.bitrate = avctx->bit_rate;
234 fd = av_tempfile("xvidff.", &(x->twopassfile));
236 av_log(avctx, AV_LOG_ERROR,
237 "Xvid: Cannot write 2-pass pipe\n");
241 if( avctx->stats_in == NULL ) {
242 av_log(avctx, AV_LOG_ERROR,
243 "Xvid: No 2-pass information loaded for second pass\n");
247 if( strlen(avctx->stats_in) >
248 write(fd, avctx->stats_in, strlen(avctx->stats_in)) ) {
250 av_log(avctx, AV_LOG_ERROR,
251 "Xvid: Cannot write to 2-pass pipe\n");
256 rc2pass2.filename = x->twopassfile;
257 plugins[xvid_enc_create.num_plugins].func = xvid_plugin_2pass2;
258 plugins[xvid_enc_create.num_plugins].param = &rc2pass2;
259 xvid_enc_create.num_plugins++;
260 } else if( !(xvid_flags & CODEC_FLAG_QSCALE) ) {
261 /* Single Pass Bitrate Control! */
262 memset(&single, 0, sizeof(xvid_plugin_single_t));
263 single.version = XVID_VERSION;
264 single.bitrate = avctx->bit_rate;
266 plugins[xvid_enc_create.num_plugins].func = xvid_plugin_single;
267 plugins[xvid_enc_create.num_plugins].param = &single;
268 xvid_enc_create.num_plugins++;
271 /* Luminance Masking */
272 if( 0.0 != avctx->lumi_masking ) {
273 plugins[xvid_enc_create.num_plugins].func = xvid_plugin_lumimasking;
274 plugins[xvid_enc_create.num_plugins].param = NULL;
275 xvid_enc_create.num_plugins++;
278 /* Frame Rate and Key Frames */
279 xvid_correct_framerate(avctx);
280 xvid_enc_create.fincr = avctx->time_base.num;
281 xvid_enc_create.fbase = avctx->time_base.den;
282 if( avctx->gop_size > 0 )
283 xvid_enc_create.max_key_interval = avctx->gop_size;
285 xvid_enc_create.max_key_interval = 240; /* Xvid's best default */
288 if( xvid_flags & CODEC_FLAG_QSCALE ) x->qscale = 1;
291 xvid_enc_create.min_quant[0] = avctx->qmin;
292 xvid_enc_create.min_quant[1] = avctx->qmin;
293 xvid_enc_create.min_quant[2] = avctx->qmin;
294 xvid_enc_create.max_quant[0] = avctx->qmax;
295 xvid_enc_create.max_quant[1] = avctx->qmax;
296 xvid_enc_create.max_quant[2] = avctx->qmax;
299 x->intra_matrix = x->inter_matrix = NULL;
300 if( avctx->mpeg_quant )
301 x->vol_flags |= XVID_VOL_MPEGQUANT;
302 if( (avctx->intra_matrix || avctx->inter_matrix) ) {
303 x->vol_flags |= XVID_VOL_MPEGQUANT;
305 if( avctx->intra_matrix ) {
306 intra = avctx->intra_matrix;
307 x->intra_matrix = av_malloc(sizeof(unsigned char) * 64);
310 if( avctx->inter_matrix ) {
311 inter = avctx->inter_matrix;
312 x->inter_matrix = av_malloc(sizeof(unsigned char) * 64);
316 for( i = 0; i < 64; i++ ) {
318 x->intra_matrix[i] = (unsigned char)intra[i];
320 x->inter_matrix[i] = (unsigned char)inter[i];
325 xvid_enc_create.frame_drop_ratio = 0;
326 xvid_enc_create.global = 0;
327 if( xvid_flags & CODEC_FLAG_CLOSED_GOP )
328 xvid_enc_create.global |= XVID_GLOBAL_CLOSED_GOP;
330 /* Determines which codec mode we are operating in */
331 avctx->extradata = NULL;
332 avctx->extradata_size = 0;
333 if( xvid_flags & CODEC_FLAG_GLOBAL_HEADER ) {
334 /* In this case, we are claiming to be MPEG4 */
335 x->quicktime_format = 1;
336 avctx->codec_id = CODEC_ID_MPEG4;
338 /* We are claiming to be Xvid */
339 x->quicktime_format = 0;
340 if(!avctx->codec_tag)
341 avctx->codec_tag = ff_get_fourcc("xvid");
345 xvid_enc_create.max_bframes = avctx->max_b_frames;
346 xvid_enc_create.bquant_offset = 100 * avctx->b_quant_offset;
347 xvid_enc_create.bquant_ratio = 100 * avctx->b_quant_factor;
348 if( avctx->max_b_frames > 0 && !x->quicktime_format ) xvid_enc_create.global |= XVID_GLOBAL_PACKED;
350 /* Create encoder context */
351 xerr = xvid_encore(NULL, XVID_ENC_CREATE, &xvid_enc_create, NULL);
353 av_log(avctx, AV_LOG_ERROR, "Xvid: Could not create encoder reference\n");
357 x->encoder_handle = xvid_enc_create.handle;
358 avctx->coded_frame = &x->encoded_picture;
364 * Encodes a single frame.
366 * @param avctx AVCodecContext pointer to context
367 * @param frame Pointer to encoded frame buffer
368 * @param buf_size Size of encoded frame buffer
369 * @param data Pointer to AVFrame of unencoded frame
370 * @return Returns 0 on success, -1 on failure
372 int ff_xvid_encode_frame(AVCodecContext *avctx,
373 unsigned char *frame, int buf_size, void *data) {
376 xvid_context_t *x = avctx->priv_data;
377 AVFrame *picture = data;
378 AVFrame *p = &(x->encoded_picture);
380 xvid_enc_frame_t xvid_enc_frame;
381 xvid_enc_stats_t xvid_enc_stats;
383 /* Start setting up the frame */
384 memset(&xvid_enc_frame, 0, sizeof(xvid_enc_frame));
385 xvid_enc_frame.version = XVID_VERSION;
386 memset(&xvid_enc_stats, 0, sizeof(xvid_enc_stats));
387 xvid_enc_stats.version = XVID_VERSION;
390 /* Let Xvid know where to put the frame. */
391 xvid_enc_frame.bitstream = frame;
392 xvid_enc_frame.length = buf_size;
394 /* Initialize input image fields */
395 if( avctx->pix_fmt != PIX_FMT_YUV420P ) {
396 av_log(avctx, AV_LOG_ERROR, "Xvid: Color spaces other than 420p not supported\n");
400 xvid_enc_frame.input.csp = XVID_CSP_PLANAR; /* YUV420P */
402 for( i = 0; i < 4; i++ ) {
403 xvid_enc_frame.input.plane[i] = picture->data[i];
404 xvid_enc_frame.input.stride[i] = picture->linesize[i];
408 xvid_enc_frame.vop_flags = x->vop_flags;
409 xvid_enc_frame.vol_flags = x->vol_flags;
410 xvid_enc_frame.motion = x->me_flags;
411 xvid_enc_frame.type = XVID_TYPE_AUTO;
413 /* Pixel aspect ratio setting */
414 if (avctx->sample_aspect_ratio.num < 1 || avctx->sample_aspect_ratio.num > 255 ||
415 avctx->sample_aspect_ratio.den < 1 || avctx->sample_aspect_ratio.den > 255) {
416 av_log(avctx, AV_LOG_ERROR, "Invalid pixel aspect ratio %i/%i\n",
417 avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den);
420 xvid_enc_frame.par = XVID_PAR_EXT;
421 xvid_enc_frame.par_width = avctx->sample_aspect_ratio.num;
422 xvid_enc_frame.par_height = avctx->sample_aspect_ratio.den;
425 if( x->qscale ) xvid_enc_frame.quant = picture->quality / FF_QP2LAMBDA;
426 else xvid_enc_frame.quant = 0;
429 xvid_enc_frame.quant_intra_matrix = x->intra_matrix;
430 xvid_enc_frame.quant_inter_matrix = x->inter_matrix;
433 xerr = xvid_encore(x->encoder_handle, XVID_ENC_ENCODE,
434 &xvid_enc_frame, &xvid_enc_stats);
436 /* Two-pass log buffer swapping */
437 avctx->stats_out = NULL;
438 if( x->twopassbuffer ) {
439 tmp = x->old_twopassbuffer;
440 x->old_twopassbuffer = x->twopassbuffer;
441 x->twopassbuffer = tmp;
442 x->twopassbuffer[0] = 0;
443 if( x->old_twopassbuffer[0] != 0 ) {
444 avctx->stats_out = x->old_twopassbuffer;
449 p->quality = xvid_enc_stats.quant * FF_QP2LAMBDA;
450 if( xvid_enc_stats.type == XVID_TYPE_PVOP )
451 p->pict_type = FF_P_TYPE;
452 else if( xvid_enc_stats.type == XVID_TYPE_BVOP )
453 p->pict_type = FF_B_TYPE;
454 else if( xvid_enc_stats.type == XVID_TYPE_SVOP )
455 p->pict_type = FF_S_TYPE;
457 p->pict_type = FF_I_TYPE;
458 if( xvid_enc_frame.out_flags & XVID_KEYFRAME ) {
460 if( x->quicktime_format )
461 return xvid_strip_vol_header(avctx, frame,
462 xvid_enc_stats.hlength, xerr);
468 av_log(avctx, AV_LOG_ERROR, "Xvid: Encoding Error Occurred: %i\n", xerr);
474 * Destroys the private context for the encoder.
475 * All buffers are freed, and the Xvid encoder context is destroyed.
477 * @param avctx AVCodecContext pointer to context
478 * @return Returns 0, success guaranteed
480 av_cold int ff_xvid_encode_close(AVCodecContext *avctx) {
481 xvid_context_t *x = avctx->priv_data;
483 xvid_encore(x->encoder_handle, XVID_ENC_DESTROY, NULL, NULL);
485 if( avctx->extradata != NULL )
486 av_free(avctx->extradata);
487 if( x->twopassbuffer != NULL ) {
488 av_free(x->twopassbuffer);
489 av_free(x->old_twopassbuffer);
491 if( x->twopassfile != NULL )
492 av_free(x->twopassfile);
493 if( x->intra_matrix != NULL )
494 av_free(x->intra_matrix);
495 if( x->inter_matrix != NULL )
496 av_free(x->inter_matrix);
502 * Routine to create a global VO/VOL header for MP4 container.
503 * What we do here is extract the header from the Xvid bitstream
504 * as it is encoded. We also strip the repeated headers from the
505 * bitstream when a global header is requested for MPEG-4 ISO
508 * @param avctx AVCodecContext pointer to context
509 * @param frame Pointer to encoded frame data
510 * @param header_len Length of header to search
511 * @param frame_len Length of encoded frame data
512 * @return Returns new length of frame data
514 int xvid_strip_vol_header(AVCodecContext *avctx,
515 unsigned char *frame,
516 unsigned int header_len,
517 unsigned int frame_len) {
520 for( i = 0; i < header_len - 3; i++ ) {
521 if( frame[i] == 0x00 &&
522 frame[i+1] == 0x00 &&
523 frame[i+2] == 0x01 &&
524 frame[i+3] == 0xB6 ) {
531 /* We need to store the header, so extract it */
532 if( avctx->extradata == NULL ) {
533 avctx->extradata = av_malloc(vo_len);
534 memcpy(avctx->extradata, frame, vo_len);
535 avctx->extradata_size = vo_len;
537 /* Less dangerous now, memmove properly copies the two
538 chunks of overlapping data */
539 memmove(frame, &(frame[vo_len]), frame_len - vo_len);
540 return frame_len - vo_len;
546 * Routine to correct a possibly erroneous framerate being fed to us.
547 * Xvid currently chokes on framerates where the ticks per frame is
548 * extremely large. This function works to correct problems in this area
549 * by estimating a new framerate and taking the simpler fraction of
552 * @param avctx Context that contains the framerate to correct.
554 void xvid_correct_framerate(AVCodecContext *avctx) {
556 int est_frate, est_fbase;
560 frate = avctx->time_base.den;
561 fbase = avctx->time_base.num;
563 gcd = ff_gcd(frate, fbase);
569 if( frate <= 65000 && fbase <= 65000 ) {
570 avctx->time_base.den = frate;
571 avctx->time_base.num = fbase;
575 fps = (float)frate / (float)fbase;
576 est_fps = roundf(fps * 1000.0) / 1000.0;
578 est_frate = (int)est_fps;
579 if( est_fps > (int)est_fps ) {
580 est_frate = (est_frate + 1) * 1000;
581 est_fbase = (int)roundf((float)est_frate / est_fps);
585 gcd = ff_gcd(est_frate, est_fbase);
591 if( fbase > est_fbase ) {
592 avctx->time_base.den = est_frate;
593 avctx->time_base.num = est_fbase;
594 av_log(avctx, AV_LOG_DEBUG,
595 "Xvid: framerate re-estimated: %.2f, %.3f%% correction\n",
596 est_fps, (((est_fps - fps)/fps) * 100.0));
598 avctx->time_base.den = frate;
599 avctx->time_base.num = fbase;
604 * Xvid 2-Pass Kludge Section
606 * Xvid's default 2-pass doesn't allow us to create data as we need to, so
607 * this section spends time replacing the first pass plugin so we can write
608 * statistic information as libavcodec requests in. We have another kludge
609 * that allows us to pass data to the second pass in Xvid without a custom
610 * rate-control plugin.
614 * Initializes the two-pass plugin and context.
616 * @param param Input construction parameter structure
617 * @param handle Private context handle
618 * @return Returns XVID_ERR_xxxx on failure, or 0 on success.
620 static int xvid_ff_2pass_create(xvid_plg_create_t * param,
622 xvid_ff_pass1_t *x = (xvid_ff_pass1_t *)param->param;
623 char *log = x->context->twopassbuffer;
625 /* Do a quick bounds check */
627 return XVID_ERR_FAIL;
629 /* We use snprintf() */
630 /* This is because we can safely prevent a buffer overflow */
632 snprintf(log, BUFFER_REMAINING(log),
633 "# ffmpeg 2-pass log file, using xvid codec\n");
634 snprintf(BUFFER_CAT(log), BUFFER_REMAINING(log),
635 "# Do not modify. libxvidcore version: %d.%d.%d\n\n",
636 XVID_VERSION_MAJOR(XVID_VERSION),
637 XVID_VERSION_MINOR(XVID_VERSION),
638 XVID_VERSION_PATCH(XVID_VERSION));
640 *handle = x->context;
645 * Destroys the two-pass plugin context.
647 * @param ref Context pointer for the plugin
648 * @param param Destrooy context
649 * @return Returns 0, success guaranteed
651 static int xvid_ff_2pass_destroy(xvid_context_t *ref,
652 xvid_plg_destroy_t *param) {
653 /* Currently cannot think of anything to do on destruction */
654 /* Still, the framework should be here for reference/use */
655 if( ref->twopassbuffer != NULL )
656 ref->twopassbuffer[0] = 0;
661 * Enables fast encode mode during the first pass.
663 * @param ref Context pointer for the plugin
664 * @param param Frame data
665 * @return Returns 0, success guaranteed
667 static int xvid_ff_2pass_before(xvid_context_t *ref,
668 xvid_plg_data_t *param) {
670 int motion_replacements;
673 /* Nothing to do here, result is changed too much */
674 if( param->zone && param->zone->mode == XVID_ZONE_QUANT )
677 /* We can implement a 'turbo' first pass mode here */
681 motion_remove = ~XVID_ME_CHROMA_PVOP &
682 ~XVID_ME_CHROMA_BVOP &
683 ~XVID_ME_EXTSEARCH16 &
684 ~XVID_ME_ADVANCEDDIAMOND16;
685 motion_replacements = XVID_ME_FAST_MODEINTERPOLATE |
686 XVID_ME_SKIP_DELTASEARCH |
687 XVID_ME_FASTREFINE16 |
688 XVID_ME_BFRAME_EARLYSTOP;
689 vop_remove = ~XVID_VOP_MODEDECISION_RD &
690 ~XVID_VOP_FAST_MODEDECISION_RD &
691 ~XVID_VOP_TRELLISQUANT &
695 param->vol_flags &= ~XVID_VOL_GMC;
696 param->vop_flags &= vop_remove;
697 param->motion_flags &= motion_remove;
698 param->motion_flags |= motion_replacements;
704 * Captures statistic data and writes it during first pass.
706 * @param ref Context pointer for the plugin
707 * @param param Statistic data
708 * @return Returns XVID_ERR_xxxx on failure, or 0 on success
710 static int xvid_ff_2pass_after(xvid_context_t *ref,
711 xvid_plg_data_t *param) {
712 char *log = ref->twopassbuffer;
713 char *frame_types = " ipbs";
716 /* Quick bounds check */
718 return XVID_ERR_FAIL;
720 /* Convert the type given to us into a character */
721 if( param->type < 5 && param->type > 0 ) {
722 frame_type = frame_types[param->type];
724 return XVID_ERR_FAIL;
727 snprintf(BUFFER_CAT(log), BUFFER_REMAINING(log),
728 "%c %d %d %d %d %d %d\n",
729 frame_type, param->stats.quant, param->stats.kblks, param->stats.mblks,
730 param->stats.ublks, param->stats.length, param->stats.hlength);
736 * Dispatch function for our custom plugin.
737 * This handles the dispatch for the Xvid plugin. It passes data
738 * on to other functions for actual processing.
740 * @param ref Context pointer for the plugin
741 * @param cmd The task given for us to complete
742 * @param p1 First parameter (varies)
743 * @param p2 Second parameter (varies)
744 * @return Returns XVID_ERR_xxxx on failure, or 0 on success
746 int xvid_ff_2pass(void *ref, int cmd, void *p1, void *p2) {
752 case XVID_PLG_BEFORE:
753 return xvid_ff_2pass_before(ref, p1);
755 case XVID_PLG_CREATE:
756 return xvid_ff_2pass_create(p1, p2);
759 return xvid_ff_2pass_after(ref, p1);
761 case XVID_PLG_DESTROY:
762 return xvid_ff_2pass_destroy(ref, p1);
765 return XVID_ERR_FAIL;
770 * Xvid codec definition for libavcodec.
772 AVCodec libxvid_encoder = {
776 sizeof(xvid_context_t),
778 ff_xvid_encode_frame,
779 ff_xvid_encode_close,
780 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
781 .long_name= NULL_IF_CONFIG_SMALL("libxvidcore MPEG-4 part 2"),