1 /*****************************************************************************
2 * x264.c: h264 video encoder
3 *****************************************************************************
4 * Copyright (C) 2004-2006 the VideoLAN team
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
30 #include <vlc/decoder.h>
34 #define SOUT_CFG_PREFIX "sout-x264-"
36 /*****************************************************************************
38 *****************************************************************************/
39 static int Open ( vlc_object_t * );
40 static void Close( vlc_object_t * );
42 /* Frame-type options */
44 #define KEYINT_TEXT N_("Maximum GOP size")
45 #define KEYINT_LONGTEXT N_( "Sets maximum interval between IDR-frames." \
46 "Larger values save bits, thus improving quality for a given bitrate at " \
47 "the cost of seeking precision." )
49 #define MIN_KEYINT_TEXT N_("Minimum GOP size")
50 #define MIN_KEYINT_LONGTEXT N_( "Sets minimum interval between IDR-frames. " \
51 "In H.264, I-frames do not necessarily bound a closed GOP because it is " \
52 "allowable for a P-frame to be predicted from more frames than just the " \
53 "one frame before it (also see frameref). Therefore, I-frames are not " \
54 "necessarily seekable. IDR-Frames restrict subsequent P-frames from " \
55 "referring to any frame prior to the IDR-Frame. \n" \
56 "If scenecuts appear within this interval, they are still encoded as " \
57 "I-frames, but do not start a new GOP." )
59 #define SCENE_TEXT N_("Extra I-Frames aggressivity" )
60 #define SCENE_LONGTEXT N_( "Scene-cut detection. Controls how " \
61 "aggressively to insert extra I-frames. With small values of " \
62 "scenecut, the codec often has " \
63 "to force an I-frame when it would exceed keyint. " \
64 "Good values of scenecut may find a better location for the " \
65 "I-frame. Large values use more I-frames " \
66 "than necessary, thus wasting bits. -1 disables scene-cut detection, so " \
67 "I-frames are be inserted only every other keyint frames, which probably " \
68 "leads to ugly encoding artifacts. (1-100)." )
70 #define BFRAMES_TEXT N_("B-frames between I and P")
71 #define BFRAMES_LONGTEXT N_( "Number of consecutive B-frames between I and " \
72 "P-frames. (1 to 16)" )
74 #define B_ADAPT_TEXT N_("Adaptive B-frame decision")
75 #define B_ADAPT_LONGTEXT N_( "Force the specified number of " \
76 "consecutive B-frames to be used, except possibly before an I-frame. " )
78 #define B_BIAS_TEXT N_("B-frames usage")
79 #define B_BIAS_LONGTEXT N_( "Bias the choice to use B-frames. Positive values " \
80 "cause more B-frames, negative values cause less B-frames. " )
82 #define BPYRAMID_TEXT N_("Keep some B-frames as references")
83 #define BPYRAMID_LONGTEXT N_( "Allows B-frames to be used as references for " \
84 "predicting other frames. Keeps the middle of 2+ consecutive B-frames " \
85 "as a reference, and reorders frame appropriately." )
87 #define CABAC_TEXT N_("CABAC")
88 #define CABAC_LONGTEXT N_( "CABAC (Context-Adaptive Binary Arithmetic "\
89 "Coding). Slightly slows down encoding and decoding, but should save " \
92 #define REF_TEXT N_("Number of reference frames")
93 #define REF_LONGTEXT N_( "Number of previous frames used as predictors. " \
94 "This is effective in Anime, but seems to make little difference in " \
95 "live-action source material. Some decoders are unable to deal with " \
96 "large frameref values. From 1 to 16" )
98 #define NF_TEXT N_("Skip loop filter")
99 #define NF_LONGTEXT N_( "Deactivate the deblocking loop filter (decreases quality).")
103 #define QP_TEXT N_("Set QP")
104 #define QP_LONGTEXT N_( "This selects the quantizer to use. " \
105 "Lower values result in better fidelity, but higher bitrates. 26 is a " \
106 "good default value. From 0 to 51. 0 means lossless" )
108 #define CRF_TEXT N_("Quality-based VBR")
109 #define CRF_LONGTEXT N_( "1-pass Quality-based VBR. From 0 to 51" )
111 #define QPMIN_TEXT N_("Min QP")
112 #define QPMIN_LONGTEXT N_( "Minimum quantizer, 15/35 seems to be a useful " \
115 #define QPMAX_TEXT N_("Max QP")
116 #define QPMAX_LONGTEXT N_( "Maximum quantizer parameter." )
118 #define QPSTEP_TEXT N_("Max QP step")
119 #define QPSTEP_LONGTEXT N_( "Max QP step between frames.")
121 #define RATETOL_TEXT N_("Average bitrate tolerance")
122 #define RATETOL_LONGTEXT N_( "Allowed variance in average. " \
123 "bitrate (in kbits/s).")
125 #define VBV_MAXRATE_TEXT N_("Max local bitrate")
126 #define VBV_MAXRATE_LONGTEXT N_( "Sets a maximum local bitrate in kbits/s.")
128 #define VBV_BUFSIZE_TEXT N_("VBV buffer")
129 #define VBV_BUFSIZE_LONGTEXT N_( "Averaging period for the maximum " \
130 "local bitrate in kbits.")
132 #define VBV_INIT_TEXT N_("Initial VBV buffer occupancy")
133 #define VBV_INIT_LONGTEXT N_( "Sets the initial buffer occupancy as a " \
134 "fraction of the buffer size.")
136 #define IPRATIO_TEXT N_("QP factor between I and P")
137 #define IPRATIO_LONGTEXT N_( "QP factor between I and P.")
139 #define PBRATIO_TEXT N_("QP factor between P and B")
140 #define PBRATIO_LONGTEXT N_( "QP factor between P and B.")
142 #define CHROMA_QP_OFFSET_TEXT N_("QP difference between chroma and luma")
143 #define CHROMA_QP_OFFSET_LONGTEXT N_( "QP difference between chroma and luma.")
145 #define QCOMP_TEXT N_("QP curve compression")
146 #define QCOMP_LONGTEXT N_( "QP curve compression. (0.0=CBR to 1.0=QCP)")
148 #define CPLXBLUR_TEXT N_("Reduce fluctuations in QP")
149 #define CPLXBLUR_LONGTEXT N_( "This reduces the fluctuations in QP " \
150 "before curve compression. Temporally blurs complexity.")
152 #define QBLUR_TEXT N_("Reduce fluctuations in QP")
153 #define QBLUR_LONGTEXT N_( "This reduces the fluctations in QP " \
154 "after curve compression. Temporally blurs quants.")
158 #define ANALYSE_TEXT N_("Partitions to consider")
159 #define ANALYSE_LONGTEXT N_( "Partitions to consider in analyse mode: \n" \
162 " - normal: i4x4,p8x8,(i8x8)\n" \
163 " - slow : i4x4,p8x8,(i8x8),b8x8\n" \
164 " - all : i4x4,p8x8,(i8x8),b8x8,p4x4\n" \
165 "(p4x4 requires p8x8. i8x8 requires 8x8dct).")
167 #define DIRECT_PRED_TEXT N_("Direct MV prediction mode")
168 #define DIRECT_PRED_LONGTEXT N_( "Direct MV prediction mode. ")
170 #define WEIGHTB_TEXT N_("Weighted prediction for B-frames")
171 #define WEIGHTB_LONGTEXT N_( "Weighted prediction for B-frames.")
173 #define ME_TEXT N_("Integer pixel motion estimation method")
174 #define ME_LONGTEXT N_( "Selects the motion estimation algorithm: "\
175 " - dia: diamond search, radius 1 (fast)\n" \
176 " - hex: hexagonal search, radius 2\n" \
177 " - umh: uneven multi-hexagon search (better but slower)\n" \
178 " - esa: exhaustive search (extremely slow, primarily for testing)\n" )
180 #define MERANGE_TEXT N_("Maximum motion vector search range")
181 #define MERANGE_LONGTEXT N_( "Maximum distance to search for " \
182 "motion estimation, measured from predicted position(s). " \
183 "Default of 16 is good for most footage, "\
184 "high motion sequences may benefit from settings between 24-32. " \
187 #define SUBME_TEXT N_("Subpixel motion estimation and partition decision " \
189 #define SUBME_LONGTEXT N_( "This parameter controls quality versus speed " \
190 "tradeoffs involved in the motion estimation decision process " \
191 "(lower = quicker and higher = better quality). From 1 to 6." )
193 #define B_RDO_TEXT N_("RD based mode decision for B-frames.")
194 #define B_RDO_LONGTEXT N_( "RD based mode decision for B-frames. This " \
197 #define MIXED_REFS_TEXT N_("Decide references on a per partition basis")
198 #define MIXED_REFS_LONGTEXT N_( "Allows each 8x8 or 16x8 partition to " \
200 "select a reference frame, as opposed to only one ref per macroblock." )
202 #define CHROMA_ME_TEXT N_("Ignore chroma in motion estimation")
203 #define CHROMA_ME_LONGTEXT N_( "Chroma ME for subpel and mode decision in " \
206 #define BIME_TEXT N_("Jointly optimize both MVs in B-frames")
207 #define BIME_LONGTEXT N_( "Joint bidirectional motion refinement.")
209 #define TRANSFORM_8X8DCT_TEXT N_("Adaptive spatial transform size")
210 #define TRANSFORM_8X8DCT_LONGTEXT N_( \
211 "SATD-based decision for 8x8 transform in inter-MBs.")
213 #define TRELLIS_TEXT N_("Trellis RD quantization" )
214 #define TRELLIS_LONGTEXT N_( "Trellis RD quantization: \n" \
216 " - 1: enabled only on the final encode of a MB\n" \
217 " - 2: enabled on all mode decisions\n" \
218 "This requires CABAC." )
220 #define FAST_PSKIP_TEXT N_("Early SKIP detection on P-frames")
221 #define FAST_PSKIP_LONGTEXT N_( "Early SKIP detection on P-frames.")
223 #define NR_TEXT N_("Noise reduction")
224 #define NR_LONGTEXT N_( "Dct-domain noise reduction. Adaptive pseudo-deadzone.")
228 #define ASM_TEXT N_("CPU optimizations")
229 #define ASM_LONGTEXT N_( "Use assembler CPU optimizations.")
231 #define PSNR_TEXT N_("PSNR calculation")
232 #define PSNR_LONGTEXT N_( "This has no effect on actual encoding quality, "\
233 "it just prevents the stats from being calculated (for speed)." )
235 #define VERBOSE_TEXT N_("Statistics")
236 #define VERBOSE_LONGTEXT N_( "Print stats for each frame.")
239 static char *enc_me_list[] =
240 { "", "dia", "hex", "umh", "esa" };
241 static char *enc_me_list_text[] =
242 { N_("default"), N_("dia"), N_("hex"), N_("umh"), N_("esa") };
245 static char *enc_analyse_list[] =
246 { "", "none", "fast", "normal", "slow", "all" };
247 static char *enc_analyse_list_text[] =
248 { N_("default"), N_("none"), N_("fast"), N_("normal"),
249 N_("slow"), N_("all") };
251 static char *direct_pred_list[] =
252 { "", "none", "spatial", "temporal" };
253 static char *direct_pred_list_text[] =
254 { N_("default"), N_("none"), N_("spatial"), N_("temporal") };
257 set_description( _("H.264/MPEG4 AVC encoder (using x264 library)"));
258 set_capability( "encoder", 200 );
259 set_callbacks( Open, Close );
260 set_category( CAT_INPUT );
261 set_subcategory( SUBCAT_INPUT_VCODEC );
263 /* Frame-type options */
265 add_integer( SOUT_CFG_PREFIX "keyint", 250, NULL, KEYINT_TEXT,
266 KEYINT_LONGTEXT, VLC_FALSE );
268 add_integer( SOUT_CFG_PREFIX "min-keyint", 25, NULL, MIN_KEYINT_TEXT,
269 MIN_KEYINT_LONGTEXT, VLC_FALSE );
270 add_deprecated( SOUT_CFG_PREFIX "keyint-min", VLC_FALSE ); /* Deprecated since 0.8.5 */
272 add_integer( SOUT_CFG_PREFIX "scenecut", 40, NULL, SCENE_TEXT,
273 SCENE_LONGTEXT, VLC_FALSE );
274 change_integer_range( -1, 100 );
276 add_integer( SOUT_CFG_PREFIX "bframes", 0, NULL, BFRAMES_TEXT,
277 BFRAMES_LONGTEXT, VLC_FALSE );
278 change_integer_range( 0, 16 );
280 #if X264_BUILD >= 0x0013 /* r137 */
281 add_bool( SOUT_CFG_PREFIX "b-adapt", 1, NULL, B_ADAPT_TEXT,
282 B_ADAPT_LONGTEXT, VLC_FALSE );
284 add_integer( SOUT_CFG_PREFIX "b-bias", 0, NULL, B_BIAS_TEXT,
285 B_BIAS_LONGTEXT, VLC_FALSE );
286 change_integer_range( -100, 100 );
289 add_bool( SOUT_CFG_PREFIX "bpyramid", 0, NULL, BPYRAMID_TEXT,
290 BPYRAMID_LONGTEXT, VLC_FALSE );
292 add_bool( SOUT_CFG_PREFIX "cabac", 1, NULL, CABAC_TEXT, CABAC_LONGTEXT,
295 add_integer( SOUT_CFG_PREFIX "ref", 1, NULL, REF_TEXT,
296 REF_LONGTEXT, VLC_FALSE );
297 add_deprecated( SOUT_CFG_PREFIX "frameref", VLC_FALSE ); /* Deprecated since 0.8.5 */
298 change_integer_range( 1, 16 );
300 add_bool( SOUT_CFG_PREFIX "nf", 0, NULL, NF_TEXT,
301 NF_LONGTEXT, VLC_FALSE );
302 add_deprecated( SOUT_CFG_PREFIX "loopfilter", VLC_FALSE ); /* Deprecated since 0.8.5 */
306 add_integer( SOUT_CFG_PREFIX "qp", 26, NULL, QP_TEXT, QP_LONGTEXT,
308 change_integer_range( 0, 51 ); /* QP 0 -> lossless encoding */
310 #if X264_BUILD >= 37 /* r334 */
311 add_integer( SOUT_CFG_PREFIX "crf", 0, NULL, CRF_TEXT,
312 CRF_LONGTEXT, VLC_FALSE );
313 change_integer_range( 0, 51 );
316 add_integer( SOUT_CFG_PREFIX "qpmin", 10, NULL, QPMIN_TEXT,
317 QPMIN_LONGTEXT, VLC_FALSE );
318 add_deprecated( SOUT_CFG_PREFIX "qp-min", VLC_FALSE ); /* Deprecated since 0.8.5 */
319 change_integer_range( 0, 51 );
321 add_integer( SOUT_CFG_PREFIX "qpmax", 51, NULL, QPMAX_TEXT,
322 QPMAX_LONGTEXT, VLC_FALSE );
323 add_deprecated( SOUT_CFG_PREFIX "qp-max", VLC_FALSE ); /* Deprecated since 0.8.5 */
324 change_integer_range( 0, 51 );
326 add_integer( SOUT_CFG_PREFIX "qpstep", 4, NULL, QPSTEP_TEXT,
327 QPSTEP_LONGTEXT, VLC_FALSE );
328 change_integer_range( 0, 51 );
330 add_float( SOUT_CFG_PREFIX "ratetol", 1.0, NULL, RATETOL_TEXT,
331 RATETOL_LONGTEXT, VLC_FALSE );
332 add_deprecated( SOUT_CFG_PREFIX "tolerance", VLC_FALSE ); /* Deprecated since 0.8.5 */
333 change_float_range( 0, 100 );
335 add_integer( SOUT_CFG_PREFIX "vbv-maxrate", 0, NULL, VBV_MAXRATE_TEXT,
336 VBV_MAXRATE_LONGTEXT, VLC_FALSE );
338 add_integer( SOUT_CFG_PREFIX "vbv-bufsize", 0, NULL, VBV_BUFSIZE_TEXT,
339 VBV_BUFSIZE_LONGTEXT, VLC_FALSE );
341 add_float( SOUT_CFG_PREFIX "vbv-init", 0.9, NULL, VBV_INIT_TEXT,
342 VBV_INIT_LONGTEXT, VLC_FALSE );
343 change_float_range( 0, 1 );
345 add_float( SOUT_CFG_PREFIX "ipratio", 1.40, NULL, IPRATIO_TEXT,
346 IPRATIO_LONGTEXT, VLC_FALSE );
347 change_float_range( 0, 100 );
349 add_float( SOUT_CFG_PREFIX "pbratio", 1.30, NULL, PBRATIO_TEXT,
350 PBRATIO_LONGTEXT, VLC_FALSE );
351 change_float_range( 0, 100 );
353 #if X264_BUILD >= 23 /* r190 */
354 add_integer( SOUT_CFG_PREFIX "chroma-qp-offset", 0, NULL, CHROMA_QP_OFFSET_TEXT,
355 CHROMA_QP_OFFSET_LONGTEXT, VLC_FALSE );
358 add_float( SOUT_CFG_PREFIX "qcomp", 0.60, NULL, QCOMP_TEXT,
359 QCOMP_LONGTEXT, VLC_FALSE );
360 change_float_range( 0, 1 );
362 add_float( SOUT_CFG_PREFIX "cplxblur", 20.0, NULL, CPLXBLUR_TEXT,
363 CPLXBLUR_LONGTEXT, VLC_FALSE );
365 add_float( SOUT_CFG_PREFIX "qblur", 0.5, NULL, QBLUR_TEXT,
366 QBLUR_LONGTEXT, VLC_FALSE );
370 add_string( SOUT_CFG_PREFIX "analyse", "all", NULL, ANALYSE_TEXT,
371 ANALYSE_LONGTEXT, VLC_FALSE );
372 change_string_list( enc_analyse_list, enc_analyse_list_text, 0 );
374 add_string( SOUT_CFG_PREFIX "direct", "temporal", NULL, DIRECT_PRED_TEXT,
375 DIRECT_PRED_LONGTEXT, VLC_FALSE );
376 change_string_list( direct_pred_list, direct_pred_list_text, 0 );
378 #if X264_BUILD >= 0x0012 /* r134 */
379 add_bool( SOUT_CFG_PREFIX "weightb", 0, NULL, WEIGHTB_TEXT,
380 WEIGHTB_LONGTEXT, VLC_FALSE );
383 #if X264_BUILD >= 24 /* r221 */
384 add_string( SOUT_CFG_PREFIX "me", "hex", NULL, ME_TEXT,
385 ME_LONGTEXT, VLC_FALSE );
386 change_string_list( enc_me_list, enc_me_list_text, 0 );
388 add_integer( SOUT_CFG_PREFIX "merange", 16, NULL, MERANGE_TEXT,
389 MERANGE_LONGTEXT, VLC_FALSE );
390 change_integer_range( 1, 64 );
393 add_integer( SOUT_CFG_PREFIX "subme", 5, NULL, SUBME_TEXT,
394 SUBME_LONGTEXT, VLC_FALSE );
395 add_deprecated( SOUT_CFG_PREFIX "subpel", VLC_FALSE ); /* Deprecated since 0.8.5 */
396 #if X264_BUILD >= 30 /* r262 */
397 change_integer_range( 1, 6 );
399 change_integer_range( 1, 5 );
402 #if X264_BUILD >= 41 /* r368 */
403 add_bool( SOUT_CFG_PREFIX "b-rdo", 0, NULL, B_RDO_TEXT,
404 B_RDO_LONGTEXT, VLC_FALSE );
407 #if X264_BUILD >= 36 /* r318 */
408 add_bool( SOUT_CFG_PREFIX "mixed-refs", 0, NULL, MIXED_REFS_TEXT,
409 MIXED_REFS_LONGTEXT, VLC_FALSE );
412 #if X264_BUILD >= 23 /* r171 */
413 add_bool( SOUT_CFG_PREFIX "chroma-me", 1, NULL, CHROMA_ME_TEXT,
414 CHROMA_ME_LONGTEXT, VLC_FALSE );
417 #if X264_BUILD >= 43 /* r390 */
418 add_bool( SOUT_CFG_PREFIX "bime", 0, NULL, BIME_TEXT,
419 BIME_LONGTEXT, VLC_FALSE );
422 #if X264_BUILD >= 30 /* r251 */
423 add_bool( SOUT_CFG_PREFIX "8x8dct", 0, NULL, TRANSFORM_8X8DCT_TEXT,
424 TRANSFORM_8X8DCT_LONGTEXT, VLC_FALSE );
427 #if X264_BUILD >= 39 /* r360 */
428 add_integer( SOUT_CFG_PREFIX "trellis", 0, NULL, TRELLIS_TEXT,
429 TRELLIS_LONGTEXT, VLC_FALSE );
430 change_integer_range( 0, 2 );
433 #if X264_BUILD >= 42 /* r384 */
434 add_bool( SOUT_CFG_PREFIX "fast-pskip", 1, NULL, FAST_PSKIP_TEXT,
435 FAST_PSKIP_LONGTEXT, VLC_FALSE );
438 #if X264_BUILD >= 44 /* r398 */
439 add_integer( SOUT_CFG_PREFIX "nr", 0, NULL, NR_TEXT,
440 NR_LONGTEXT, VLC_FALSE );
445 add_bool( SOUT_CFG_PREFIX "asm", 1, NULL, ASM_TEXT,
446 ASM_LONGTEXT, VLC_FALSE );
448 /* x264 psnr = 1 (default). disable PSNR calculation for speed. */
449 add_bool( SOUT_CFG_PREFIX "psnr", 0, NULL, PSNR_TEXT,
450 PSNR_LONGTEXT, VLC_FALSE );
452 #if X264_BUILD >= 0x000e /* r81 */
453 add_bool( SOUT_CFG_PREFIX "verbose", 0, NULL, VERBOSE_TEXT,
454 VERBOSE_LONGTEXT, VLC_FALSE );
459 /*****************************************************************************
461 *****************************************************************************/
462 static const char *ppsz_sout_options[] = {
463 "8x8dct", "analyse", "asm", "bframes", "bime", "bpyramid", "b-adapt",
464 "b-bias", "b-rdo", "cabac", "chroma-me", "chroma-qp-offset", "cplxblur",
465 "crf", "direct", "fast-pskip", "frameref", "ipratio", "keyint",
466 "keyint-min", "loopfilter", "me", "merange", "min-keyint", "mixed-refs",
467 "nf", "nr", "pbratio", "psnr", "qblur", "qp", "qcomp", "qpstep",
468 "qpmax", "qpmin", "qp-max", "qp-min", "ratetol", "ref", "scenecut",
469 "subme", "subpel", "tolerance", "trellis", "verbose", "vbv-bufsize",
470 "vbv-init", "vbv-maxrate", "weightb" , NULL
473 static block_t *Encode( encoder_t *, picture_t * );
483 mtime_t i_last_ref_pts;
486 /*****************************************************************************
487 * Open: probe the encoder
488 *****************************************************************************/
489 static int Open ( vlc_object_t *p_this )
491 encoder_t *p_enc = (encoder_t *)p_this;
492 encoder_sys_t *p_sys;
494 int i_qmin = 0, i_qmax = 0;
496 if( p_enc->fmt_out.i_codec != VLC_FOURCC( 'h', '2', '6', '4' ) &&
503 if( p_enc->fmt_in.video.i_width % 16 != 0 ||
504 p_enc->fmt_in.video.i_height % 16!= 0 )
506 msg_Warn( p_enc, "size is not a multiple of 16 (%ix%i)",
507 p_enc->fmt_in.video.i_width, p_enc->fmt_in.video.i_height );
509 if( p_enc->fmt_in.video.i_width < 16 ||
510 p_enc->fmt_in.video.i_height < 16 )
512 msg_Err( p_enc, "video is too small to be cropped" );
516 msg_Warn( p_enc, "cropping video to %ix%i",
517 p_enc->fmt_in.video.i_width >> 4 << 4,
518 p_enc->fmt_in.video.i_height >> 4 << 4 );
522 sout_CfgParse( p_enc, SOUT_CFG_PREFIX, ppsz_sout_options, p_enc->p_cfg );
524 p_enc->fmt_out.i_codec = VLC_FOURCC( 'h', '2', '6', '4' );
525 p_enc->fmt_in.i_codec = VLC_FOURCC('I','4','2','0');
527 p_enc->pf_encode_video = Encode;
528 p_enc->pf_encode_audio = NULL;
529 p_enc->p_sys = p_sys = malloc( sizeof( encoder_sys_t ) );
530 p_sys->i_last_ref_pts = 0;
532 x264_param_default( &p_sys->param );
533 p_sys->param.i_width = p_enc->fmt_in.video.i_width;
534 p_sys->param.i_height = p_enc->fmt_in.video.i_height;
536 p_sys->param.i_width = p_sys->param.i_width >> 4 << 4;
537 p_sys->param.i_height = p_sys->param.i_height >> 4 << 4;
540 /* average bitrate specified by transcode vb */
541 p_sys->param.rc.i_bitrate = p_enc->fmt_out.i_bitrate / 1000;
543 /* cbr = 1 overrides qp or crf and sets an average bitrate
544 but maxrate = average bitrate is needed for "real" CBR */
545 if( p_sys->param.rc.i_bitrate > 0 ) p_sys->param.rc.b_cbr = 1;
547 var_Get( p_enc, SOUT_CFG_PREFIX "qpstep", &val );
548 if( val.i_int >= 0 && val.i_int <= 51 ) p_sys->param.rc.i_qp_step = val.i_int;
549 var_Get( p_enc, SOUT_CFG_PREFIX "qpmin", &val );
550 if( val.i_int >= 0 && val.i_int <= 51 ) i_qmin = val.i_int;
551 var_Get( p_enc, SOUT_CFG_PREFIX "qpmax", &val );
552 if( val.i_int >= 0 && val.i_int <= 51 ) i_qmax = val.i_int;
554 var_Get( p_enc, SOUT_CFG_PREFIX "qp", &val );
555 if( val.i_int >= 0 && val.i_int <= 51 )
557 if( i_qmin > val.i_int ) i_qmin = val.i_int;
558 if( i_qmax < val.i_int ) i_qmax = val.i_int;
560 #if X264_BUILD >= 0x000a
561 p_sys->param.rc.i_qp_constant = val.i_int;
562 p_sys->param.rc.i_qp_min = i_qmin;
563 p_sys->param.rc.i_qp_max = i_qmax;
565 p_sys->param.i_qp_constant = val.i_int;
570 var_Get( p_enc, SOUT_CFG_PREFIX "ratetol", &val );
571 p_sys->param.rc.f_rate_tolerance = val.f_float;
573 var_Get( p_enc, SOUT_CFG_PREFIX "vbv-init", &val );
574 p_sys->param.rc.f_vbv_buffer_init = val.f_float;
576 var_Get( p_enc, SOUT_CFG_PREFIX "vbv-bufsize", &val );
577 p_sys->param.rc.i_vbv_buffer_size = val.i_int;
579 /* x264 vbv-bufsize = 0 (default). if not provided set period
580 in seconds for local maximum bitrate (cache/bufsize) based
581 on average bitrate. */
583 p_sys->param.rc.i_vbv_buffer_size = p_sys->param.rc.i_bitrate * 2;
585 /* max bitrate = average bitrate -> CBR */
586 var_Get( p_enc, SOUT_CFG_PREFIX "vbv-maxrate", &val );
587 p_sys->param.rc.i_vbv_max_bitrate = val.i_int;
590 p_sys->param.rc.i_rc_buffer_size = p_sys->param.rc.i_bitrate;
591 p_sys->param.rc.i_rc_init_buffer = p_sys->param.rc.i_bitrate / 4;
594 var_Get( p_enc, SOUT_CFG_PREFIX "cabac", &val );
595 p_sys->param.b_cabac = val.b_bool;
597 /* disable deblocking when nf (no loop filter) is enabled */
598 var_Get( p_enc, SOUT_CFG_PREFIX "nf", &val );
599 p_sys->param.b_deblocking_filter = !val.b_bool;
601 var_Get( p_enc, SOUT_CFG_PREFIX "ipratio", &val );
602 p_sys->param.rc.f_ip_factor = val.f_float;
604 var_Get( p_enc, SOUT_CFG_PREFIX "pbratio", &val );
605 p_sys->param.rc.f_pb_factor = val.f_float;
607 var_Get( p_enc, SOUT_CFG_PREFIX "qcomp", &val );
608 p_sys->param.rc.f_qcompress = val.f_float;
610 var_Get( p_enc, SOUT_CFG_PREFIX "cplxblur", &val );
611 p_sys->param.rc.f_complexity_blur = val.f_float;
613 var_Get( p_enc, SOUT_CFG_PREFIX "qblur", &val );
614 p_sys->param.rc.f_qblur = val.f_float;
616 #if X264_BUILD >= 0x000e
617 var_Get( p_enc, SOUT_CFG_PREFIX "verbose", &val );
618 if( val.b_bool ) p_sys->param.i_log_level = X264_LOG_DEBUG;
621 var_Get( p_enc, SOUT_CFG_PREFIX "keyint", &val );
622 #if X264_BUILD >= 0x000e
623 if( val.i_int > 0 ) p_sys->param.i_keyint_max = val.i_int;
625 if( val.i_int > 0 ) p_sys->param.i_iframe = val.i_int;
628 var_Get( p_enc, SOUT_CFG_PREFIX "min-keyint", &val );
629 #if X264_BUILD >= 0x000e
630 if( val.i_int > 0 ) p_sys->param.i_keyint_min = val.i_int;
632 if( val.i_int > 0 ) p_sys->param.i_idrframe = val.i_int;
635 var_Get( p_enc, SOUT_CFG_PREFIX "bframes", &val );
636 if( val.i_int >= 0 && val.i_int <= 16 )
637 p_sys->param.i_bframe = val.i_int;
640 var_Get( p_enc, SOUT_CFG_PREFIX "bpyramid", &val );
641 p_sys->param.b_bframe_pyramid = val.b_bool;
644 var_Get( p_enc, SOUT_CFG_PREFIX "ref", &val );
645 if( val.i_int > 0 && val.i_int <= 15 )
646 p_sys->param.i_frame_reference = val.i_int;
648 var_Get( p_enc, SOUT_CFG_PREFIX "scenecut", &val );
649 #if X264_BUILD >= 0x000b
650 if( val.i_int >= -1 && val.i_int <= 100 )
651 p_sys->param.i_scenecut_threshold = val.i_int;
655 var_Get( p_enc, SOUT_CFG_PREFIX "subme", &val );
656 if( val.i_int >= 1 && val.i_int <= 6 )
657 p_sys->param.analyse.i_subpel_refine = val.i_int;
659 if( val.i_int >= 1 && val.i_int <= 5 )
660 p_sys->param.analyse.i_subpel_refine = val.i_int;
664 var_Get( p_enc, SOUT_CFG_PREFIX "me", &val );
665 if( !strcmp( val.psz_string, "dia" ) )
667 p_sys->param.analyse.i_me_method = X264_ME_DIA;
669 else if( !strcmp( val.psz_string, "hex" ) )
671 p_sys->param.analyse.i_me_method = X264_ME_HEX;
673 else if( !strcmp( val.psz_string, "umh" ) )
675 p_sys->param.analyse.i_me_method = X264_ME_UMH;
677 else if( !strcmp( val.psz_string, "esa" ) )
679 p_sys->param.analyse.i_me_method = X264_ME_ESA;
681 if( val.psz_string ) free( val.psz_string );
683 var_Get( p_enc, SOUT_CFG_PREFIX "merange", &val );
684 if( val.i_int >= 1 && val.i_int <= 64 )
685 p_sys->param.analyse.i_me_range = val.i_int;
688 var_Get( p_enc, SOUT_CFG_PREFIX "direct", &val );
689 if( !strcmp( val.psz_string, "none" ) )
691 p_sys->param.analyse.i_direct_mv_pred = X264_DIRECT_PRED_NONE;
693 else if( !strcmp( val.psz_string, "spatial" ) )
695 p_sys->param.analyse.i_direct_mv_pred = X264_DIRECT_PRED_SPATIAL;
697 else if( !strcmp( val.psz_string, "temporal" ) )
699 p_sys->param.analyse.i_direct_mv_pred = X264_DIRECT_PRED_TEMPORAL;
701 if( val.psz_string ) free( val.psz_string );
703 var_Get( p_enc, SOUT_CFG_PREFIX "psnr", &val );
704 p_sys->param.analyse.b_psnr = val.b_bool;
706 #if X264_BUILD >= 0x0012
707 var_Get( p_enc, SOUT_CFG_PREFIX "weightb", &val );
708 p_sys->param.analyse.b_weighted_bipred = val.b_bool;
711 #if X264_BUILD >= 0x0013
712 var_Get( p_enc, SOUT_CFG_PREFIX "b-adapt", &val );
713 p_sys->param.b_bframe_adaptive = val.b_bool;
715 var_Get( p_enc, SOUT_CFG_PREFIX "b-bias", &val );
716 if( val.i_int >= -100 && val.i_int <= 100 )
717 p_sys->param.i_bframe_bias = val.i_int;
721 var_Get( p_enc, SOUT_CFG_PREFIX "chroma-me", &val );
722 p_sys->param.analyse.b_chroma_me = val.b_bool;
723 var_Get( p_enc, SOUT_CFG_PREFIX "chroma-qp-offset", &val );
724 p_sys->param.analyse.i_chroma_qp_offset = val.i_int;
728 var_Get( p_enc, SOUT_CFG_PREFIX "mixed-refs", &val );
729 p_sys->param.analyse.b_mixed_references = val.b_bool;
733 var_Get( p_enc, SOUT_CFG_PREFIX "crf", &val );
734 if( val.i_int >= 0 && val.i_int <= 51 ) /* crf != 0 overrides qp */
735 p_sys->param.rc.i_rf_constant = val.i_int;
739 var_Get( p_enc, SOUT_CFG_PREFIX "trellis", &val );
740 if( val.i_int >= 0 && val.i_int <= 2 )
741 p_sys->param.analyse.i_trellis = val.i_int;
745 var_Get( p_enc, SOUT_CFG_PREFIX "b-rdo", &val );
746 p_sys->param.analyse.b_bframe_rdo = val.b_bool;
750 var_Get( p_enc, SOUT_CFG_PREFIX "fast-pskip", &val );
751 p_sys->param.analyse.b_fast_pskip = val.b_bool;
755 var_Get( p_enc, SOUT_CFG_PREFIX "bime", &val );
756 p_sys->param.analyse.b_bidir_me = val.b_bool;
760 var_Get( p_enc, SOUT_CFG_PREFIX "nr", &val );
761 p_sys->param.analyse.i_noise_reduction = val.i_int;
764 var_Get( p_enc, SOUT_CFG_PREFIX "asm", &val );
765 if( !val.b_bool ) p_sys->param.cpu = 0;
767 #ifndef X264_ANALYSE_BSUB16x16
768 # define X264_ANALYSE_BSUB16x16 0
770 var_Get( p_enc, SOUT_CFG_PREFIX "analyse", &val );
771 if( !strcmp( val.psz_string, "none" ) )
773 p_sys->param.analyse.inter = 0;
775 else if( !strcmp( val.psz_string, "fast" ) )
777 p_sys->param.analyse.inter = X264_ANALYSE_I4x4;
779 else if( !strcmp( val.psz_string, "normal" ) )
781 p_sys->param.analyse.inter =
783 X264_ANALYSE_PSUB16x16;
784 #ifdef X264_ANALYSE_I8x8
785 p_sys->param.analyse.inter |= X264_ANALYSE_I8x8;
788 else if( !strcmp( val.psz_string, "slow" ) )
790 p_sys->param.analyse.inter =
792 X264_ANALYSE_PSUB16x16 |
793 X264_ANALYSE_BSUB16x16;
794 #ifdef X264_ANALYSE_I8x8
795 p_sys->param.analyse.inter |= X264_ANALYSE_I8x8;
798 else if( !strcmp( val.psz_string, "all" ) )
800 p_sys->param.analyse.inter =
802 X264_ANALYSE_PSUB16x16 |
803 X264_ANALYSE_BSUB16x16 |
804 X264_ANALYSE_PSUB8x8;
805 #ifdef X264_ANALYSE_I8x8
806 p_sys->param.analyse.inter |= X264_ANALYSE_I8x8;
809 if( val.psz_string ) free( val.psz_string );
812 var_Get( p_enc, SOUT_CFG_PREFIX "8x8dct", &val );
813 p_sys->param.analyse.b_transform_8x8 = val.b_bool;
816 if( p_enc->fmt_in.video.i_aspect > 0 )
818 int64_t i_num, i_den;
819 int i_dst_num, i_dst_den;
821 i_num = p_enc->fmt_in.video.i_aspect *
822 (int64_t)p_enc->fmt_in.video.i_height;
823 i_den = VOUT_ASPECT_FACTOR * p_enc->fmt_in.video.i_width;
824 vlc_ureduce( &i_dst_num, &i_dst_den, i_num, i_den, 0 );
826 p_sys->param.vui.i_sar_width = i_dst_num;
827 p_sys->param.vui.i_sar_height = i_dst_den;
829 if( p_enc->fmt_in.video.i_frame_rate_base > 0 )
831 p_sys->param.i_fps_num = p_enc->fmt_in.video.i_frame_rate;
832 p_sys->param.i_fps_den = p_enc->fmt_in.video.i_frame_rate_base;
834 if( !(p_enc->p_libvlc->i_cpu & CPU_CAPABILITY_MMX) )
836 p_sys->param.cpu &= ~X264_CPU_MMX;
838 if( !(p_enc->p_libvlc->i_cpu & CPU_CAPABILITY_MMXEXT) )
840 p_sys->param.cpu &= ~X264_CPU_MMXEXT;
842 if( !(p_enc->p_libvlc->i_cpu & CPU_CAPABILITY_SSE) )
844 p_sys->param.cpu &= ~X264_CPU_SSE;
846 if( !(p_enc->p_libvlc->i_cpu & CPU_CAPABILITY_SSE2) )
848 p_sys->param.cpu &= ~X264_CPU_SSE2;
852 if( p_enc->i_threads >= 1 )
853 p_sys->param.i_threads = p_enc->i_threads;
856 /* Open the encoder */
857 p_sys->h = x264_encoder_open( &p_sys->param );
860 p_sys->i_buffer = 4 * p_enc->fmt_in.video.i_width *
861 p_enc->fmt_in.video.i_height + 1000;
862 p_sys->p_buffer = malloc( p_sys->i_buffer );
864 /* get the globals headers */
865 p_enc->fmt_out.i_extra = 0;
866 p_enc->fmt_out.p_extra = NULL;
869 x264_encoder_headers( p_sys->h, &nal, &i_nal );
870 for( i = 0; i < i_nal; i++ )
872 int i_size = p_sys->i_buffer;
874 x264_nal_encode( p_sys->p_buffer, &i_size, 1, &nal[i] );
876 p_enc->fmt_out.p_extra = realloc( p_enc->fmt_out.p_extra, p_enc->fmt_out.i_extra + i_size );
878 memcpy( p_enc->fmt_out.p_extra + p_enc->fmt_out.i_extra,
879 p_sys->p_buffer, i_size );
881 p_enc->fmt_out.i_extra += i_size;
888 /****************************************************************************
890 ****************************************************************************/
891 static block_t *Encode( encoder_t *p_enc, picture_t *p_pict )
893 encoder_sys_t *p_sys = p_enc->p_sys;
900 memset( &pic, 0, sizeof( x264_picture_t ) );
901 pic.i_pts = p_pict->date;
902 pic.img.i_csp = X264_CSP_I420;
903 pic.img.i_plane = p_pict->i_planes;
904 for( i = 0; i < p_pict->i_planes; i++ )
906 pic.img.plane[i] = p_pict->p[i].p_pixels;
907 pic.img.i_stride[i] = p_pict->p[i].i_pitch;
910 #if X264_BUILD >= 0x0013
911 x264_encoder_encode( p_sys->h, &nal, &i_nal, &pic, &pic );
913 x264_encoder_encode( p_sys->h, &nal, &i_nal, &pic );
916 if( !i_nal ) return NULL;
918 for( i = 0, i_out = 0; i < i_nal; i++ )
920 int i_size = p_sys->i_buffer - i_out;
921 x264_nal_encode( p_sys->p_buffer + i_out, &i_size, 1, &nal[i] );
926 p_block = block_New( p_enc, i_out );
927 memcpy( p_block->p_buffer, p_sys->p_buffer, i_out );
929 if( pic.i_type == X264_TYPE_IDR || pic.i_type == X264_TYPE_I )
930 p_block->i_flags |= BLOCK_FLAG_TYPE_I;
931 else if( pic.i_type == X264_TYPE_P )
932 p_block->i_flags |= BLOCK_FLAG_TYPE_P;
933 else if( pic.i_type == X264_TYPE_B )
934 p_block->i_flags |= BLOCK_FLAG_TYPE_B;
936 /* This isn't really valid for streams with B-frames */
937 p_block->i_length = I64C(1000000) *
938 p_enc->fmt_in.video.i_frame_rate_base /
939 p_enc->fmt_in.video.i_frame_rate;
941 p_block->i_dts = p_block->i_pts = pic.i_pts;
943 if( p_sys->param.i_bframe > 0 )
945 if( p_block->i_flags & BLOCK_FLAG_TYPE_B )
947 p_block->i_dts = p_block->i_pts;
951 if( p_sys->i_last_ref_pts )
953 p_block->i_dts = p_sys->i_last_ref_pts;
957 /* Let's put something sensible */
958 p_block->i_dts = p_block->i_pts;
961 p_sys->i_last_ref_pts = p_block->i_pts;
968 /*****************************************************************************
969 * CloseEncoder: x264 encoder destruction
970 *****************************************************************************/
971 static void Close( vlc_object_t *p_this )
973 encoder_t *p_enc = (encoder_t *)p_this;
974 encoder_sys_t *p_sys = p_enc->p_sys;
976 x264_encoder_close( p_sys->h );
977 free( p_sys->p_buffer );