1 /*****************************************************************************
2 * x264.c: h264 video encoder
3 *****************************************************************************
4 * Copyright (C) 2004-2006 the VideoLAN team
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * Ilkka Ollakka <ileoo (at)videolan org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
32 #include <vlc_common.h>
33 #include <vlc_plugin.h>
35 #include <vlc_codec.h>
36 #include <vlc_charset.h>
39 #ifdef PTW32_STATIC_LIB
44 #define SOUT_CFG_PREFIX "sout-x264-"
46 /*****************************************************************************
48 *****************************************************************************/
49 static int Open ( vlc_object_t * );
50 static void Close( vlc_object_t * );
52 /* Frame-type options */
54 #define KEYINT_TEXT N_("Maximum GOP size")
55 #define KEYINT_LONGTEXT N_( "Sets maximum interval between IDR-frames." \
56 "Larger values save bits, thus improving quality for a given bitrate at " \
57 "the cost of seeking precision." )
59 #define MIN_KEYINT_TEXT N_("Minimum GOP size")
60 #define MIN_KEYINT_LONGTEXT N_( "Sets minimum interval between IDR-frames. " \
61 "In H.264, I-frames do not necessarily bound a closed GOP because it is " \
62 "allowable for a P-frame to be predicted from more frames than just the " \
63 "one frame before it (also see reference frame option). Therefore, " \
64 "I-frames are not necessarily seekable. IDR-frames restrict subsequent " \
65 "P-frames from referring to any frame prior to the IDR-frame. \n" \
66 "If scenecuts appear within this interval, they are still encoded as " \
67 "I-frames, but do not start a new GOP." )
69 #define SCENE_TEXT N_("Extra I-frames aggressivity" )
70 #define SCENE_LONGTEXT N_( "Scene-cut detection. Controls how " \
71 "aggressively to insert extra I-frames. With small values of " \
72 "scenecut, the codec often has " \
73 "to force an I-frame when it would exceed keyint. " \
74 "Good values of scenecut may find a better location for the " \
75 "I-frame. Large values use more I-frames " \
76 "than necessary, thus wasting bits. -1 disables scene-cut detection, so " \
77 "I-frames are inserted only every other keyint frames, which probably " \
78 "leads to ugly encoding artifacts. Range 1 to 100." )
81 #define BFRAMES_TEXT N_("B-frames between I and P")
82 #define BFRAMES_LONGTEXT N_( "Number of consecutive B-frames between I and " \
83 "P-frames. Range 1 to 16." )
85 #define B_ADAPT_TEXT N_("Adaptive B-frame decision")
86 #define B_ADAPT_LONGTEXT N_( "Force the specified number of " \
87 "consecutive B-frames to be used, except possibly before an I-frame." \
90 #define B_BIAS_TEXT N_("Influence (bias) B-frames usage")
91 #define B_BIAS_LONGTEXT N_( "Bias the choice to use B-frames. Positive values " \
92 "cause more B-frames, negative values cause less B-frames." )
95 #define BPYRAMID_TEXT N_("Keep some B-frames as references")
97 #define BPYRAMID_LONGTEXT N_( "Allows B-frames to be used as references for " \
98 "predicting other frames. Keeps the middle of 2+ consecutive B-frames " \
99 "as a reference, and reorders frame appropriately.\n" \
100 " - none: Disabled\n" \
101 " - strict: Strictly hierarchical pyramid\n" \
102 " - normal: Non-strict (not Blu-ray compatible)\n"\
105 #define BPYRAMID_LONGTEXT N_( "Allows B-frames to be used as references for " \
106 "predicting other frames. Keeps the middle of 2+ consecutive B-frames " \
107 "as a reference, and reorders frame appropriately." )
110 #define CABAC_TEXT N_("CABAC")
111 #define CABAC_LONGTEXT N_( "CABAC (Context-Adaptive Binary Arithmetic "\
112 "Coding). Slightly slows down encoding and decoding, but should save " \
113 "10 to 15% bitrate." )
115 #define REF_TEXT N_("Number of reference frames")
116 #define REF_LONGTEXT N_( "Number of previous frames used as predictors. " \
117 "This is effective in Anime, but seems to make little difference in " \
118 "live-action source material. Some decoders are unable to deal with " \
119 "large frameref values. Range 1 to 16." )
121 #define NF_TEXT N_("Skip loop filter")
122 #define NF_LONGTEXT N_( "Deactivate the deblocking loop filter (decreases quality).")
124 #define FILTER_TEXT N_("Loop filter AlphaC0 and Beta parameters alpha:beta")
125 #define FILTER_LONGTEXT N_( "Loop filter AlphaC0 and Beta parameters. " \
126 "Range -6 to 6 for both alpha and beta parameters. -6 means light " \
127 "filter, 6 means strong.")
129 #define LEVEL_TEXT N_("H.264 level")
130 #define LEVEL_LONGTEXT N_( "Specify H.264 level (as defined by Annex A " \
131 "of the standard). Levels are not enforced; it's up to the user to select " \
132 "a level compatible with the rest of the encoding options. Range 1 to 5.1 " \
133 "(10 to 51 is also allowed).")
135 #define PROFILE_TEXT N_("H.264 profile")
136 #define PROFILE_LONGTEXT N_("Specify H.264 profile which limits are enforced over" \
139 /* In order to play an interlaced output stream encoded by x264, a decoder needs
140 mbaff support. r570 is using the 'mb' part and not 'aff' yet; so it's really
141 'pure-interlaced' mode */
142 #define INTERLACED_TEXT N_("Interlaced mode")
143 #define INTERLACED_LONGTEXT N_( "Pure-interlaced mode.")
147 #define QP_TEXT N_("Set QP")
148 #define QP_LONGTEXT N_( "This selects the quantizer to use. " \
149 "Lower values result in better fidelity, but higher bitrates. 26 is a " \
150 "good default value. Range 0 (lossless) to 51." )
152 #define CRF_TEXT N_("Quality-based VBR")
153 #define CRF_LONGTEXT N_( "1-pass Quality-based VBR. Range 0 to 51." )
155 #define QPMIN_TEXT N_("Min QP")
156 #define QPMIN_LONGTEXT N_( "Minimum quantizer parameter. 15 to 35 seems to " \
157 "be a useful range." )
159 #define QPMAX_TEXT N_("Max QP")
160 #define QPMAX_LONGTEXT N_( "Maximum quantizer parameter." )
162 #define QPSTEP_TEXT N_("Max QP step")
163 #define QPSTEP_LONGTEXT N_( "Max QP step between frames.")
165 #define RATETOL_TEXT N_("Average bitrate tolerance")
166 #define RATETOL_LONGTEXT N_( "Allowed variance in average " \
167 "bitrate (in kbits/s).")
169 #define VBV_MAXRATE_TEXT N_("Max local bitrate")
170 #define VBV_MAXRATE_LONGTEXT N_( "Sets a maximum local bitrate (in kbits/s).")
172 #define VBV_BUFSIZE_TEXT N_("VBV buffer")
173 #define VBV_BUFSIZE_LONGTEXT N_( "Averaging period for the maximum " \
174 "local bitrate (in kbits).")
176 #define VBV_INIT_TEXT N_("Initial VBV buffer occupancy")
177 #define VBV_INIT_LONGTEXT N_( "Sets the initial buffer occupancy as a " \
178 "fraction of the buffer size. Range 0.0 to 1.0.")
180 #define AQ_MODE_TEXT N_("How AQ distributes bits")
181 #define AQ_MODE_LONGTEXT N_("Defines bitdistribution mode for AQ, default 1\n" \
183 " - 1: Current x264 default mode\n"\
184 " - 2: uses log(var)^2 instead of log(var) and attempts to adapt strength per frame")
186 #define AQ_STRENGTH_TEXT N_("Strength of AQ")
187 #define AQ_STRENGTH_LONGTEXT N_("Strength to reduce blocking and blurring in flat\n"\
188 "and textured areas, default 1.0 recommented to be between 0..2\n"\
192 /* IP Ratio < 1 is technically valid but should never improve quality */
193 #define IPRATIO_TEXT N_("QP factor between I and P")
194 #define IPRATIO_LONGTEXT N_( "QP factor between I and P. Range 1.0 to 2.0.")
196 /* PB ratio < 1 is not valid and breaks ratecontrol */
197 #define PBRATIO_TEXT N_("QP factor between P and B")
198 #define PBRATIO_LONGTEXT N_( "QP factor between P and B. Range 1.0 to 2.0.")
200 #define CHROMA_QP_OFFSET_TEXT N_("QP difference between chroma and luma")
201 #define CHROMA_QP_OFFSET_LONGTEXT N_( "QP difference between chroma and luma.")
203 #define PASS_TEXT N_("Multipass ratecontrol")
204 #define PASS_LONGTEXT N_( "Multipass ratecontrol:\n" \
205 " - 1: First pass, creates stats file\n" \
206 " - 2: Last pass, does not overwrite stats file\n" \
207 " - 3: Nth pass, overwrites stats file\n" )
209 #define QCOMP_TEXT N_("QP curve compression")
210 #define QCOMP_LONGTEXT N_( "QP curve compression. Range 0.0 (CBR) to 1.0 (QCP).")
212 #define CPLXBLUR_TEXT N_("Reduce fluctuations in QP")
213 #define CPLXBLUR_LONGTEXT N_( "This reduces the fluctuations in QP " \
214 "before curve compression. Temporally blurs complexity.")
216 #define QBLUR_TEXT N_("Reduce fluctuations in QP")
217 #define QBLUR_LONGTEXT N_( "This reduces the fluctations in QP " \
218 "after curve compression. Temporally blurs quants.")
222 #define ANALYSE_TEXT N_("Partitions to consider")
223 #define ANALYSE_LONGTEXT N_( "Partitions to consider in analyse mode: \n" \
226 " - normal: i4x4,p8x8,(i8x8)\n" \
227 " - slow : i4x4,p8x8,(i8x8),b8x8\n" \
228 " - all : i4x4,p8x8,(i8x8),b8x8,p4x4\n" \
229 "(p4x4 requires p8x8. i8x8 requires 8x8dct).")
231 #define DIRECT_PRED_TEXT N_("Direct MV prediction mode")
232 #define DIRECT_PRED_LONGTEXT N_( "Direct MV prediction mode.")
234 #define DIRECT_PRED_SIZE_TEXT N_("Direct prediction size")
235 #define DIRECT_PRED_SIZE_LONGTEXT N_( "Direct prediction size: "\
238 " - -1: smallest possible according to level\n" )
240 #define WEIGHTB_TEXT N_("Weighted prediction for B-frames")
241 #define WEIGHTB_LONGTEXT N_( "Weighted prediction for B-frames.")
243 #define WEIGHTP_TEXT N_("Weighted prediction for P-frames")
244 #define WEIGHTP_LONGTEXT N_(" Weighted prediction for P-frames: "\
246 " - 1: Blind offset\n"\
247 " - 2: Smart analysis\n" )
249 #define ME_TEXT N_("Integer pixel motion estimation method")
250 #define ME_LONGTEXT N_( "Selects the motion estimation algorithm: "\
251 " - dia: diamond search, radius 1 (fast)\n" \
252 " - hex: hexagonal search, radius 2\n" \
253 " - umh: uneven multi-hexagon search (better but slower)\n" \
254 " - esa: exhaustive search (extremely slow, primarily for testing)\n" \
255 " - tesa: hadamard exhaustive search (extremely slow, primarily for testing)\n" )
257 #define MERANGE_TEXT N_("Maximum motion vector search range")
258 #define MERANGE_LONGTEXT N_( "Maximum distance to search for " \
259 "motion estimation, measured from predicted position(s). " \
260 "Default of 16 is good for most footage, high motion sequences may " \
261 "benefit from settings between 24 and 32. Range 0 to 64." )
263 #define MVRANGE_TEXT N_("Maximum motion vector length")
264 #define MVRANGE_LONGTEXT N_( "Maximum motion vector length in pixels. " \
265 "-1 is automatic, based on level." )
267 #define MVRANGE_THREAD_TEXT N_("Minimum buffer space between threads")
268 #define MVRANGE_THREAD_LONGTEXT N_( "Minimum buffer space between threads. " \
269 "-1 is automatic, based on number of threads." )
271 #define PSY_RD_TEXT N_( "Strength of psychovisual optimization, default is \"1.0:0.0\"")
272 #define PSY_RD_LONGTEXT N_( "First parameter controls if RD is on (subme>=6) or off"\
273 "second parameter controls if Trellis is used on psychovisual optimization," \
276 #define SUBME_TEXT N_("Subpixel motion estimation and partition decision " \
280 #define SUBME_LONGTEXT N_( "This parameter controls quality versus speed " \
281 "tradeoffs involved in the motion estimation decision process " \
282 "(lower = quicker and higher = better quality). Range 1 to 9." )
284 #define B_RDO_TEXT N_("RD based mode decision for B-frames")
285 #define B_RDO_LONGTEXT N_( "RD based mode decision for B-frames. This " \
286 "requires subme 6 (or higher).")
288 #define MIXED_REFS_TEXT N_("Decide references on a per partition basis")
289 #define MIXED_REFS_LONGTEXT N_( "Allows each 8x8 or 16x8 partition to " \
290 "independently select a reference frame, as opposed to only one ref " \
293 #define CHROMA_ME_TEXT N_("Chroma in motion estimation")
294 #define CHROMA_ME_LONGTEXT N_( "Chroma ME for subpel and mode decision in " \
297 #define BIME_TEXT N_("Jointly optimize both MVs in B-frames")
298 #define BIME_LONGTEXT N_( "Joint bidirectional motion refinement.")
300 #define TRANSFORM_8X8DCT_TEXT N_("Adaptive spatial transform size")
301 #define TRANSFORM_8X8DCT_LONGTEXT N_( \
302 "SATD-based decision for 8x8 transform in inter-MBs.")
304 #define TRELLIS_TEXT N_("Trellis RD quantization" )
305 #define TRELLIS_LONGTEXT N_( "Trellis RD quantization: \n" \
307 " - 1: enabled only on the final encode of a MB\n" \
308 " - 2: enabled on all mode decisions\n" \
309 "This requires CABAC." )
311 #define FAST_PSKIP_TEXT N_("Early SKIP detection on P-frames")
312 #define FAST_PSKIP_LONGTEXT N_( "Early SKIP detection on P-frames.")
314 #define DCT_DECIMATE_TEXT N_("Coefficient thresholding on P-frames")
315 #define DCT_DECIMATE_LONGTEXT N_( "Coefficient thresholding on P-frames." \
316 "Eliminate dct blocks containing only a small single coefficient.")
318 /* Noise reduction 1 is too weak to measure, suggest at least 10 */
319 #define NR_TEXT N_("Noise reduction")
320 #define NR_LONGTEXT N_( "Dct-domain noise reduction. Adaptive pseudo-deadzone. " \
321 "10 to 1000 seems to be a useful range." )
323 #define DEADZONE_INTER_TEXT N_("Inter luma quantization deadzone")
324 #define DEADZONE_INTER_LONGTEXT N_( "Set the size of the inter luma quantization deadzone. " \
327 #define DEADZONE_INTRA_TEXT N_("Intra luma quantization deadzone")
328 #define DEADZONE_INTRA_LONGTEXT N_( "Set the size of the intra luma quantization deadzone. " \
333 #define NON_DETERMINISTIC_TEXT N_("Non-deterministic optimizations when threaded")
334 #define NON_DETERMINISTIC_LONGTEXT N_( "Slightly improve quality of SMP, " \
335 "at the cost of repeatability.")
337 #define ASM_TEXT N_("CPU optimizations")
338 #define ASM_LONGTEXT N_( "Use assembler CPU optimizations.")
340 #define STATS_TEXT N_("Filename for 2 pass stats file")
341 #define STATS_LONGTEXT N_( "Filename for 2 pass stats file for multi-pass encoding.")
343 #define PSNR_TEXT N_("PSNR computation")
344 #define PSNR_LONGTEXT N_( "Compute and print PSNR stats. This has no effect on " \
345 "the actual encoding quality." )
347 #define SSIM_TEXT N_("SSIM computation")
348 #define SSIM_LONGTEXT N_( "Compute and print SSIM stats. This has no effect on " \
349 "the actual encoding quality." )
351 #define QUIET_TEXT N_("Quiet mode")
352 #define QUIET_LONGTEXT N_( "Quiet mode.")
354 #define VERBOSE_TEXT N_("Statistics")
355 #define VERBOSE_LONGTEXT N_( "Print stats for each frame.")
357 #define SPS_ID_TEXT N_("SPS and PPS id numbers")
358 #define SPS_ID_LONGTEXT N_( "Set SPS and PPS id numbers to allow concatenating " \
359 "streams with different settings.")
361 #define AUD_TEXT N_("Access unit delimiters")
362 #define AUD_LONGTEXT N_( "Generate access unit delimiter NAL units.")
364 static const char *const enc_me_list[] =
365 { "dia", "hex", "umh", "esa", "tesa" };
366 static const char *const enc_me_list_text[] =
367 { N_("dia"), N_("hex"), N_("umh"), N_("esa"), N_("tesa") };
369 static const char *const profile_list[] =
370 { "baseline", "main", "high" };
373 static const char *const bpyramid_list[] =
374 { "none", "strict", "normal" };
377 static const char *const enc_analyse_list[] =
378 { "none", "fast", "normal", "slow", "all" };
379 static const char *const enc_analyse_list_text[] =
380 { N_("none"), N_("fast"), N_("normal"), N_("slow"), N_("all") };
382 static const char *const direct_pred_list[] =
383 { "none", "spatial", "temporal", "auto" };
384 static const char *const direct_pred_list_text[] =
385 { N_("none"), N_("spatial"), N_("temporal"), N_("auto") };
388 set_description( N_("H.264/MPEG4 AVC encoder (x264)"))
389 set_capability( "encoder", 200 )
390 set_callbacks( Open, Close )
391 set_category( CAT_INPUT )
392 set_subcategory( SUBCAT_INPUT_VCODEC )
394 /* Frame-type options */
396 add_integer( SOUT_CFG_PREFIX "keyint", 250, NULL, KEYINT_TEXT,
397 KEYINT_LONGTEXT, false )
399 add_integer( SOUT_CFG_PREFIX "min-keyint", 25, NULL, MIN_KEYINT_TEXT,
400 MIN_KEYINT_LONGTEXT, false )
401 add_deprecated_alias( SOUT_CFG_PREFIX "keyint-min" ) /* Deprecated since 0.8.5 */
403 add_integer( SOUT_CFG_PREFIX "scenecut", 40, NULL, SCENE_TEXT,
404 SCENE_LONGTEXT, false )
405 change_integer_range( -1, 100 )
407 add_obsolete_bool( SOUT_CFG_PREFIX "pre-scenecut" )
409 add_integer( SOUT_CFG_PREFIX "bframes", 3, NULL, BFRAMES_TEXT,
410 BFRAMES_LONGTEXT, false )
411 change_integer_range( 0, 16 )
413 add_integer( SOUT_CFG_PREFIX "b-adapt", 1, NULL, B_ADAPT_TEXT,
414 B_ADAPT_LONGTEXT, false )
415 change_integer_range( 0, 2 )
417 add_integer( SOUT_CFG_PREFIX "b-bias", 0, NULL, B_BIAS_TEXT,
418 B_BIAS_LONGTEXT, false )
419 change_integer_range( -100, 100 )
422 add_string( SOUT_CFG_PREFIX "bpyramid", "none", NULL, BPYRAMID_TEXT,
423 BPYRAMID_LONGTEXT, false )
424 change_string_list( bpyramid_list, bpyramid_list, 0 );
426 add_bool( SOUT_CFG_PREFIX "bpyramid", false, NULL, BPYRAMID_TEXT,
427 BPYRAMID_LONGTEXT, false )
430 add_bool( SOUT_CFG_PREFIX "cabac", true, NULL, CABAC_TEXT, CABAC_LONGTEXT,
433 add_integer( SOUT_CFG_PREFIX "ref", 3, NULL, REF_TEXT,
434 REF_LONGTEXT, false )
435 change_integer_range( 1, 16 )
436 add_deprecated_alias( SOUT_CFG_PREFIX "frameref" ) /* Deprecated since 0.8.5 */
438 add_bool( SOUT_CFG_PREFIX "nf", false, NULL, NF_TEXT,
440 add_deprecated_alias( SOUT_CFG_PREFIX "loopfilter" ) /* Deprecated since 0.8.5 */
442 add_string( SOUT_CFG_PREFIX "deblock", "0:0", NULL, FILTER_TEXT,
443 FILTER_LONGTEXT, false )
444 add_deprecated_alias( SOUT_CFG_PREFIX "filter" ) /* Deprecated since 0.8.6 */
446 add_string( SOUT_CFG_PREFIX "psy-rd", "1.0:0.0", NULL, PSY_RD_TEXT,
447 PSY_RD_LONGTEXT, false )
449 add_string( SOUT_CFG_PREFIX "level", "5.1", NULL, LEVEL_TEXT,
450 LEVEL_LONGTEXT, false )
452 add_string( SOUT_CFG_PREFIX "profile", "high", NULL, PROFILE_TEXT,
453 PROFILE_LONGTEXT, false )
454 change_string_list( profile_list, profile_list, 0 );
456 add_bool( SOUT_CFG_PREFIX "interlaced", false, NULL, INTERLACED_TEXT, INTERLACED_LONGTEXT,
461 add_integer( SOUT_CFG_PREFIX "qp", -1, NULL, QP_TEXT, QP_LONGTEXT,
463 change_integer_range( -1, 51 ) /* QP 0 -> lossless encoding */
465 add_integer( SOUT_CFG_PREFIX "crf", 23, NULL, CRF_TEXT,
466 CRF_LONGTEXT, false )
467 change_integer_range( 0, 51 )
469 add_integer( SOUT_CFG_PREFIX "qpmin", 10, NULL, QPMIN_TEXT,
470 QPMIN_LONGTEXT, false )
471 change_integer_range( 0, 51 )
472 add_deprecated_alias( SOUT_CFG_PREFIX "qp-min" ) /* Deprecated since 0.8.5 */
474 add_integer( SOUT_CFG_PREFIX "qpmax", 51, NULL, QPMAX_TEXT,
475 QPMAX_LONGTEXT, false )
476 change_integer_range( 0, 51 )
477 add_deprecated_alias( SOUT_CFG_PREFIX "qp-max" ) /* Deprecated since 0.8.5 */
479 add_integer( SOUT_CFG_PREFIX "qpstep", 4, NULL, QPSTEP_TEXT,
480 QPSTEP_LONGTEXT, false )
481 change_integer_range( 0, 51 )
483 add_float( SOUT_CFG_PREFIX "ratetol", 1.0, NULL, RATETOL_TEXT,
484 RATETOL_LONGTEXT, false )
485 change_float_range( 0, 100 )
486 add_deprecated_alias( SOUT_CFG_PREFIX "tolerance" ) /* Deprecated since 0.8.5 */
488 add_integer( SOUT_CFG_PREFIX "vbv-maxrate", 0, NULL, VBV_MAXRATE_TEXT,
489 VBV_MAXRATE_LONGTEXT, false )
491 add_integer( SOUT_CFG_PREFIX "vbv-bufsize", 0, NULL, VBV_BUFSIZE_TEXT,
492 VBV_BUFSIZE_LONGTEXT, false )
494 add_float( SOUT_CFG_PREFIX "vbv-init", 0.9, NULL, VBV_INIT_TEXT,
495 VBV_INIT_LONGTEXT, false )
496 change_float_range( 0, 1 )
498 add_float( SOUT_CFG_PREFIX "ipratio", 1.40, NULL, IPRATIO_TEXT,
499 IPRATIO_LONGTEXT, false )
500 change_float_range( 1, 2 )
502 add_float( SOUT_CFG_PREFIX "pbratio", 1.30, NULL, PBRATIO_TEXT,
503 PBRATIO_LONGTEXT, false )
504 change_float_range( 1, 2 )
506 add_integer( SOUT_CFG_PREFIX "chroma-qp-offset", 0, NULL, CHROMA_QP_OFFSET_TEXT,
507 CHROMA_QP_OFFSET_LONGTEXT, false )
509 add_integer( SOUT_CFG_PREFIX "pass", 0, NULL, PASS_TEXT,
510 PASS_LONGTEXT, false )
511 change_integer_range( 0, 3 )
513 add_float( SOUT_CFG_PREFIX "qcomp", 0.60, NULL, QCOMP_TEXT,
514 QCOMP_LONGTEXT, false )
515 change_float_range( 0, 1 )
517 add_float( SOUT_CFG_PREFIX "cplxblur", 20.0, NULL, CPLXBLUR_TEXT,
518 CPLXBLUR_LONGTEXT, false )
520 add_float( SOUT_CFG_PREFIX "qblur", 0.5, NULL, QBLUR_TEXT,
521 QBLUR_LONGTEXT, false )
523 add_integer( SOUT_CFG_PREFIX "aq-mode", X264_AQ_VARIANCE, NULL, AQ_MODE_TEXT,
524 AQ_MODE_LONGTEXT, false )
525 change_integer_range( 0, 2 )
526 add_float( SOUT_CFG_PREFIX "aq-strength", 1.0, NULL, AQ_STRENGTH_TEXT,
527 AQ_STRENGTH_LONGTEXT, false )
531 /* x264 partitions = none (default). set at least "normal" mode. */
532 add_string( SOUT_CFG_PREFIX "partitions", "normal", NULL, ANALYSE_TEXT,
533 ANALYSE_LONGTEXT, false )
534 change_string_list( enc_analyse_list, enc_analyse_list_text, 0 );
535 add_deprecated_alias( SOUT_CFG_PREFIX "analyse" ) /* Deprecated since 0.8.6 */
537 add_string( SOUT_CFG_PREFIX "direct", "spatial", NULL, DIRECT_PRED_TEXT,
538 DIRECT_PRED_LONGTEXT, false )
539 change_string_list( direct_pred_list, direct_pred_list_text, 0 );
541 add_integer( SOUT_CFG_PREFIX "direct-8x8", 1, NULL, DIRECT_PRED_SIZE_TEXT,
542 DIRECT_PRED_SIZE_LONGTEXT, false )
543 change_integer_range( -1, 1 )
545 add_bool( SOUT_CFG_PREFIX "weightb", true, NULL, WEIGHTB_TEXT,
546 WEIGHTB_LONGTEXT, false )
548 add_integer( SOUT_CFG_PREFIX "weightp", 2, NULL, WEIGHTP_TEXT,
549 WEIGHTP_LONGTEXT, false )
550 change_integer_range( 0, 2 )
552 add_string( SOUT_CFG_PREFIX "me", "hex", NULL, ME_TEXT,
554 change_string_list( enc_me_list, enc_me_list_text, 0 );
556 add_integer( SOUT_CFG_PREFIX "merange", 16, NULL, MERANGE_TEXT,
557 MERANGE_LONGTEXT, false )
558 change_integer_range( 1, 64 )
560 add_integer( SOUT_CFG_PREFIX "mvrange", -1, NULL, MVRANGE_TEXT,
561 MVRANGE_LONGTEXT, false )
563 add_integer( SOUT_CFG_PREFIX "mvrange-thread", -1, NULL, MVRANGE_THREAD_TEXT,
564 MVRANGE_THREAD_LONGTEXT, false )
566 add_integer( SOUT_CFG_PREFIX "subme", 5, NULL, SUBME_TEXT,
567 SUBME_LONGTEXT, false )
568 change_integer_range( 1, SUBME_MAX )
569 add_deprecated_alias( SOUT_CFG_PREFIX "subpel" ) /* Deprecated since 0.8.5 */
571 add_obsolete_bool( SOUT_CFG_PREFIX "b-rdo" )
573 add_bool( SOUT_CFG_PREFIX "mixed-refs", true, NULL, MIXED_REFS_TEXT,
574 MIXED_REFS_LONGTEXT, false )
576 add_bool( SOUT_CFG_PREFIX "chroma-me", true, NULL, CHROMA_ME_TEXT,
577 CHROMA_ME_LONGTEXT, false )
579 add_obsolete_bool( SOUT_CFG_PREFIX "bime" )
581 add_bool( SOUT_CFG_PREFIX "8x8dct", false, NULL, TRANSFORM_8X8DCT_TEXT,
582 TRANSFORM_8X8DCT_LONGTEXT, false )
584 add_integer( SOUT_CFG_PREFIX "trellis", 1, NULL, TRELLIS_TEXT,
585 TRELLIS_LONGTEXT, false )
586 change_integer_range( 0, 2 )
588 add_bool( SOUT_CFG_PREFIX "fast-pskip", true, NULL, FAST_PSKIP_TEXT,
589 FAST_PSKIP_LONGTEXT, false )
591 add_bool( SOUT_CFG_PREFIX "dct-decimate", true, NULL, DCT_DECIMATE_TEXT,
592 DCT_DECIMATE_LONGTEXT, false )
594 add_integer( SOUT_CFG_PREFIX "nr", 0, NULL, NR_TEXT,
596 change_integer_range( 0, 1000 )
598 add_integer( SOUT_CFG_PREFIX "deadzone-inter", 21, NULL, DEADZONE_INTER_TEXT,
599 DEADZONE_INTRA_LONGTEXT, false )
600 change_integer_range( 0, 32 )
602 add_integer( SOUT_CFG_PREFIX "deadzone-intra", 11, NULL, DEADZONE_INTRA_TEXT,
603 DEADZONE_INTRA_LONGTEXT, false )
604 change_integer_range( 0, 32 )
608 add_bool( SOUT_CFG_PREFIX "non-deterministic", false, NULL, NON_DETERMINISTIC_TEXT,
609 NON_DETERMINISTIC_LONGTEXT, false )
611 add_bool( SOUT_CFG_PREFIX "asm", true, NULL, ASM_TEXT,
612 ASM_LONGTEXT, false )
614 /* x264 psnr = 1 (default). disable PSNR computation for speed. */
615 add_bool( SOUT_CFG_PREFIX "psnr", false, NULL, PSNR_TEXT,
616 PSNR_LONGTEXT, false )
618 /* x264 ssim = 1 (default). disable SSIM computation for speed. */
619 add_bool( SOUT_CFG_PREFIX "ssim", false, NULL, SSIM_TEXT,
620 SSIM_LONGTEXT, false )
622 add_bool( SOUT_CFG_PREFIX "quiet", false, NULL, QUIET_TEXT,
623 QUIET_LONGTEXT, false )
625 add_integer( SOUT_CFG_PREFIX "sps-id", 0, NULL, SPS_ID_TEXT,
626 SPS_ID_LONGTEXT, false )
628 add_bool( SOUT_CFG_PREFIX "aud", false, NULL, AUD_TEXT,
629 AUD_LONGTEXT, false )
631 add_bool( SOUT_CFG_PREFIX "verbose", false, NULL, VERBOSE_TEXT,
632 VERBOSE_LONGTEXT, false )
634 add_string( SOUT_CFG_PREFIX "stats", "x264_2pass.log", NULL, STATS_TEXT,
635 STATS_LONGTEXT, false )
639 /*****************************************************************************
641 *****************************************************************************/
642 static const char *const ppsz_sout_options[] = {
643 "8x8dct", "analyse", "asm", "aud", "bframes", "bime", "bpyramid",
644 "b-adapt", "b-bias", "b-rdo", "cabac", "chroma-me", "chroma-qp-offset",
645 "cplxblur", "crf", "dct-decimate", "deadzone-inter", "deadzone-intra",
646 "deblock", "direct", "direct-8x8", "filter", "fast-pskip", "frameref",
647 "interlaced", "ipratio", "keyint", "keyint-min", "level", "loopfilter",
648 "me", "merange", "min-keyint", "mixed-refs", "mvrange", "mvrange-thread",
649 "nf", "non-deterministic", "nr", "partitions", "pass", "pbratio",
650 "pre-scenecut", "psnr", "qblur", "qp", "qcomp", "qpstep", "qpmax",
651 "qpmin", "qp-max", "qp-min", "quiet", "ratetol", "ref", "scenecut",
652 "sps-id", "ssim", "stats", "subme", "subpel", "tolerance", "trellis",
653 "verbose", "vbv-bufsize", "vbv-init", "vbv-maxrate", "weightb", "weightp", "aq-mode",
654 "aq-strength", "psy-rd", "profile", NULL
657 static block_t *Encode( encoder_t *, picture_t * );
667 mtime_t i_interpolated_dts;
672 /*****************************************************************************
673 * Open: probe the encoder
674 *****************************************************************************/
675 static int Open ( vlc_object_t *p_this )
677 encoder_t *p_enc = (encoder_t *)p_this;
678 encoder_sys_t *p_sys;
681 int i_qmin = 0, i_qmax = 0;
685 if( p_enc->fmt_out.i_codec != VLC_CODEC_H264 &&
690 /* X264_POINTVER or X264_VERSION are not available */
691 msg_Dbg ( p_enc, "version x264 0.%d.X", X264_BUILD );
693 config_ChainParse( p_enc, SOUT_CFG_PREFIX, ppsz_sout_options, p_enc->p_cfg );
695 p_enc->fmt_out.i_cat = VIDEO_ES;
696 p_enc->fmt_out.i_codec = VLC_CODEC_H264;
697 p_enc->fmt_in.i_codec = VLC_CODEC_I420;
699 p_enc->pf_encode_video = Encode;
700 p_enc->pf_encode_audio = NULL;
701 p_enc->p_sys = p_sys = malloc( sizeof( encoder_sys_t ) );
704 p_sys->i_interpolated_dts = 0;
705 p_sys->psz_stat_name = NULL;
706 p_sys->p_buffer = NULL;
708 x264_param_default( &p_sys->param );
709 p_sys->param.i_width = p_enc->fmt_in.video.i_width;
710 p_sys->param.i_height = p_enc->fmt_in.video.i_height;
712 p_sys->param.rc.f_qcompress = var_GetFloat( p_enc, SOUT_CFG_PREFIX "qcomp" );
714 /* transcode-default bitrate is 0,
715 * set more to ABR if user specifies bitrate */
716 if( p_enc->fmt_out.i_bitrate > 0 )
718 p_sys->param.rc.i_bitrate = p_enc->fmt_out.i_bitrate / 1000;
719 p_sys->param.rc.i_rc_method = X264_RC_ABR;
721 else /* Set default to CRF */
723 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "crf" );
724 if( i_val > 0 && i_val <= 51 )
726 p_sys->param.rc.f_rf_constant = i_val;
727 p_sys->param.rc.i_rc_method = X264_RC_CRF;
731 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "qpstep" );
732 if( i_val >= 0 && i_val <= 51 ) p_sys->param.rc.i_qp_step = i_val;
734 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "qpmin" );
735 if( i_val >= 0 && i_val <= 51 )
738 p_sys->param.rc.i_qp_min = i_qmin;
740 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "qpmax" );
741 if( i_val >= 0 && i_val <= 51 )
744 p_sys->param.rc.i_qp_max = i_qmax;
747 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "qp" );
748 if( i_val >= 0 && i_val <= 51 )
750 if( i_qmin > i_val ) i_qmin = i_val;
751 if( i_qmax < i_val ) i_qmax = i_val;
753 /* User defined QP-value, so change ratecontrol method */
754 p_sys->param.rc.i_rc_method = X264_RC_CQP;
755 p_sys->param.rc.i_qp_constant = i_val;
756 p_sys->param.rc.i_qp_min = i_qmin;
757 p_sys->param.rc.i_qp_max = i_qmax;
761 p_sys->param.rc.f_rate_tolerance = var_GetFloat( p_enc,
762 SOUT_CFG_PREFIX "ratetol" );
763 p_sys->param.rc.f_vbv_buffer_init = var_GetFloat( p_enc,
764 SOUT_CFG_PREFIX "vbv-init" );
765 p_sys->param.rc.i_vbv_buffer_size = var_GetInteger( p_enc,
766 SOUT_CFG_PREFIX "vbv-bufsize" );
768 /* max bitrate = average bitrate -> CBR */
769 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "vbv-maxrate" );
771 if( !i_val && p_sys->param.rc.i_rc_method == X264_RC_ABR )
772 p_sys->param.rc.i_vbv_max_bitrate = p_sys->param.rc.i_bitrate;
774 p_sys->param.rc.i_vbv_max_bitrate = i_val;
776 p_sys->param.b_cabac = var_GetBool( p_enc, SOUT_CFG_PREFIX "cabac" );
778 /* disable deblocking when nf (no loop filter) is enabled */
779 p_sys->param.b_deblocking_filter = !var_GetBool( p_enc, SOUT_CFG_PREFIX "nf" );
781 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "deblock" );
784 char *p = strchr( psz_val, ':' );
785 p_sys->param.i_deblocking_filter_alphac0 = atoi( psz_val );
786 p_sys->param.i_deblocking_filter_beta = p ?
787 atoi( p+1 ) : p_sys->param.i_deblocking_filter_alphac0;
791 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "psy-rd" );
794 char *p = strchr( psz_val, ':' );
795 p_sys->param.analyse.f_psy_rd = us_atof( psz_val );
796 p_sys->param.analyse.f_psy_trellis = p ? us_atof( p+1 ) : 0;
800 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "level" );
803 if( us_atof (psz_val) < 6 )
804 p_sys->param.i_level_idc = (int) (10 * us_atof (psz_val)
807 p_sys->param.i_level_idc = atoi (psz_val);
811 p_sys->param.b_interlaced = var_GetBool( p_enc, SOUT_CFG_PREFIX "interlaced" );
812 p_sys->param.rc.f_ip_factor = var_GetFloat( p_enc, SOUT_CFG_PREFIX "ipratio" );
813 p_sys->param.rc.f_pb_factor = var_GetFloat( p_enc, SOUT_CFG_PREFIX "pbratio" );
814 p_sys->param.rc.f_complexity_blur = var_GetFloat( p_enc, SOUT_CFG_PREFIX "cplxblur" );
815 p_sys->param.rc.f_qblur = var_GetFloat( p_enc, SOUT_CFG_PREFIX "qblur" );
816 p_sys->param.rc.i_aq_mode = var_GetInteger( p_enc, SOUT_CFG_PREFIX "aq-mode" );
817 p_sys->param.rc.f_aq_strength = var_GetFloat( p_enc, SOUT_CFG_PREFIX "aq-strength" );
819 if( var_GetBool( p_enc, SOUT_CFG_PREFIX "verbose" ) )
820 p_sys->param.i_log_level = X264_LOG_DEBUG;
822 if( var_GetBool( p_enc, SOUT_CFG_PREFIX "quiet" ) )
823 p_sys->param.i_log_level = X264_LOG_NONE;
825 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "sps-id" );
826 if( i_val >= 0 ) p_sys->param.i_sps_id = i_val;
828 if( var_GetBool( p_enc, SOUT_CFG_PREFIX "aud" ) )
829 p_sys->param.b_aud = true;
831 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "keyint" );
832 if( i_val > 0 ) p_sys->param.i_keyint_max = i_val;
834 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "min-keyint" );
835 if( i_val > 0 ) p_sys->param.i_keyint_min = i_val;
837 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "bframes" );
838 if( i_val >= 0 && i_val <= 16 )
839 p_sys->param.i_bframe = i_val;
842 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "bpyramid" );
843 p_sys->param.i_bframe_pyramid = X264_B_PYRAMID_NONE;
844 if( !strcmp( psz_val, "none" ) )
846 p_sys->param.i_bframe_pyramid = X264_B_PYRAMID_NONE;
847 } else if ( !strcmp( psz_val, "strict" ) )
849 p_sys->param.i_bframe_pyramid = X264_B_PYRAMID_STRICT;
850 } else if ( !strcmp( psz_val, "normal" ) )
852 p_sys->param.i_bframe_pyramid = X264_B_PYRAMID_NORMAL;
856 p_sys->param.b_bframe_pyramid = var_GetBool( p_enc, SOUT_CFG_PREFIX "bpyramid" );
859 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "ref" );
860 if( i_val > 0 && i_val <= 15 )
861 p_sys->param.i_frame_reference = i_val;
863 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "scenecut" );
864 if( i_val >= -1 && i_val <= 100 )
865 p_sys->param.i_scenecut_threshold = i_val;
867 p_sys->param.b_deterministic = var_GetBool( p_enc,
868 SOUT_CFG_PREFIX "non-deterministic" );
870 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "subme" );
871 if( i_val >= 1 && i_val <= SUBME_MAX )
872 p_sys->param.analyse.i_subpel_refine = i_val;
874 //TODO: psz_val == NULL ?
875 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "me" );
876 if( !strcmp( psz_val, "dia" ) )
878 p_sys->param.analyse.i_me_method = X264_ME_DIA;
880 else if( !strcmp( psz_val, "hex" ) )
882 p_sys->param.analyse.i_me_method = X264_ME_HEX;
884 else if( !strcmp( psz_val, "umh" ) )
886 p_sys->param.analyse.i_me_method = X264_ME_UMH;
888 else if( !strcmp( psz_val, "esa" ) )
890 p_sys->param.analyse.i_me_method = X264_ME_ESA;
892 else if( !strcmp( psz_val, "tesa" ) )
894 p_sys->param.analyse.i_me_method = X264_ME_TESA;
898 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "merange" );
899 if( i_val >= 0 && i_val <= 64 )
900 p_sys->param.analyse.i_me_range = i_val;
902 p_sys->param.analyse.i_mv_range = var_GetInteger( p_enc,
903 SOUT_CFG_PREFIX "mvrange" );
904 p_sys->param.analyse.i_mv_range_thread = var_GetInteger( p_enc,
905 SOUT_CFG_PREFIX "mvrange-thread" );
907 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "direct" );
908 if( !strcmp( psz_val, "none" ) )
910 p_sys->param.analyse.i_direct_mv_pred = X264_DIRECT_PRED_NONE;
912 else if( !strcmp( psz_val, "spatial" ) )
914 p_sys->param.analyse.i_direct_mv_pred = X264_DIRECT_PRED_SPATIAL;
916 else if( !strcmp( psz_val, "temporal" ) )
918 p_sys->param.analyse.i_direct_mv_pred = X264_DIRECT_PRED_TEMPORAL;
920 else if( !strcmp( psz_val, "auto" ) )
922 p_sys->param.analyse.i_direct_mv_pred = X264_DIRECT_PRED_AUTO;
926 p_sys->param.analyse.b_psnr = var_GetBool( p_enc, SOUT_CFG_PREFIX "psnr" );
927 p_sys->param.analyse.b_ssim = var_GetBool( p_enc, SOUT_CFG_PREFIX "ssim" );
928 p_sys->param.analyse.b_weighted_bipred = var_GetBool( p_enc,
929 SOUT_CFG_PREFIX "weightb" );
931 p_sys->param.analyse.i_weighted_pred = var_GetInteger( p_enc, SOUT_CFG_PREFIX "weightp" );
933 p_sys->param.i_bframe_adaptive = var_GetInteger( p_enc,
934 SOUT_CFG_PREFIX "b-adapt" );
936 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "b-bias" );
937 if( i_val >= -100 && i_val <= 100 )
938 p_sys->param.i_bframe_bias = i_val;
940 p_sys->param.analyse.b_chroma_me = var_GetBool( p_enc,
941 SOUT_CFG_PREFIX "chroma-me" );
942 p_sys->param.analyse.i_chroma_qp_offset = var_GetInteger( p_enc,
943 SOUT_CFG_PREFIX "chroma-qp-offset" );
944 p_sys->param.analyse.b_mixed_references = var_GetBool( p_enc,
945 SOUT_CFG_PREFIX "mixed-refs" );
947 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "trellis" );
948 if( i_val >= 0 && i_val <= 2 )
949 p_sys->param.analyse.i_trellis = i_val;
951 p_sys->param.analyse.b_fast_pskip = var_GetBool( p_enc,
952 SOUT_CFG_PREFIX "fast-pskip" );
954 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "nr" );
955 if( i_val >= 0 && i_val <= 1000 )
956 p_sys->param.analyse.i_noise_reduction = i_val;
958 p_sys->param.analyse.b_dct_decimate = var_GetBool( p_enc,
959 SOUT_CFG_PREFIX "dct-decimate" );
961 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "deadzone-inter" );
962 if( i_val >= 0 && i_val <= 32 )
963 p_sys->param.analyse.i_luma_deadzone[0] = i_val;
965 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "deadzone-intra" );
966 if( i_val >= 0 && i_val <= 32 )
967 p_sys->param.analyse.i_luma_deadzone[1] = i_val;
969 if( !var_GetBool( p_enc, SOUT_CFG_PREFIX "asm" ) )
970 p_sys->param.cpu = 0;
972 #ifndef X264_ANALYSE_BSUB16x16
973 # define X264_ANALYSE_BSUB16x16 0
975 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "partitions" );
976 if( !strcmp( psz_val, "none" ) )
978 p_sys->param.analyse.inter = 0;
980 else if( !strcmp( psz_val, "fast" ) )
982 p_sys->param.analyse.inter = X264_ANALYSE_I4x4;
984 else if( !strcmp( psz_val, "normal" ) )
986 p_sys->param.analyse.inter =
988 X264_ANALYSE_PSUB16x16;
989 #ifdef X264_ANALYSE_I8x8
990 p_sys->param.analyse.inter |= X264_ANALYSE_I8x8;
993 else if( !strcmp( psz_val, "slow" ) )
995 p_sys->param.analyse.inter =
997 X264_ANALYSE_PSUB16x16 |
998 X264_ANALYSE_BSUB16x16;
999 #ifdef X264_ANALYSE_I8x8
1000 p_sys->param.analyse.inter |= X264_ANALYSE_I8x8;
1003 else if( !strcmp( psz_val, "all" ) )
1005 p_sys->param.analyse.inter = ~0;
1009 p_sys->param.analyse.b_transform_8x8 = var_GetBool( p_enc,
1010 SOUT_CFG_PREFIX "8x8dct" );
1012 if( p_enc->fmt_in.video.i_aspect > 0 )
1014 int64_t i_num, i_den;
1015 unsigned int i_dst_num, i_dst_den;
1017 i_num = p_enc->fmt_in.video.i_aspect *
1018 (int64_t)p_enc->fmt_in.video.i_height;
1019 i_den = VOUT_ASPECT_FACTOR * p_enc->fmt_in.video.i_width;
1020 vlc_ureduce( &i_dst_num, &i_dst_den, i_num, i_den, 0 );
1022 p_sys->param.vui.i_sar_width = i_dst_num;
1023 p_sys->param.vui.i_sar_height = i_dst_den;
1026 if( p_enc->fmt_in.video.i_frame_rate_base > 0 )
1028 p_sys->param.i_fps_num = p_enc->fmt_in.video.i_frame_rate;
1029 p_sys->param.i_fps_den = p_enc->fmt_in.video.i_frame_rate_base;
1032 /* x264 vbv-bufsize = 0 (default). if not provided set period
1033 in seconds for local maximum bitrate (cache/bufsize) based
1034 on average bitrate when use has told bitrate.
1035 vbv-buffer size is set to bitrate * secods between keyframes */
1036 if( !p_sys->param.rc.i_vbv_buffer_size &&
1037 p_sys->param.rc.i_rc_method == X264_RC_ABR &&
1038 p_sys->param.i_fps_num )
1040 p_sys->param.rc.i_vbv_buffer_size = p_sys->param.rc.i_bitrate *
1041 p_sys->param.i_fps_den;
1042 p_sys->param.rc.i_vbv_buffer_size *= p_sys->param.i_keyint_max;
1043 p_sys->param.rc.i_vbv_buffer_size /= p_sys->param.i_fps_num;
1046 /* Check if user has given some profile (baseline,main,high) to limit
1047 * settings, and apply those*/
1048 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "profile" );
1051 if( !strcasecmp( psz_val, "baseline" ) )
1053 msg_Dbg( p_enc, "Limiting to baseline profile");
1054 p_sys->param.analyse.b_transform_8x8 = 0;
1055 p_sys->param.b_cabac = 0;
1056 p_sys->param.i_bframe = 0;
1057 #if X264_BUILD >= 79
1058 p_sys->param.analyse.i_weighted_pred = X264_WEIGHTP_NONE;
1061 else if (!strcasecmp( psz_val, "main" ) )
1063 msg_Dbg( p_enc, "Limiting to main-profile");
1064 p_sys->param.analyse.b_transform_8x8 = 0;
1066 /* high profile don't restrict stuff*/
1071 unsigned i_cpu = vlc_CPU();
1072 if( !(i_cpu & CPU_CAPABILITY_MMX) )
1074 p_sys->param.cpu &= ~X264_CPU_MMX;
1076 if( !(i_cpu & CPU_CAPABILITY_MMXEXT) )
1078 p_sys->param.cpu &= ~X264_CPU_MMXEXT;
1080 if( !(i_cpu & CPU_CAPABILITY_SSE) )
1082 p_sys->param.cpu &= ~X264_CPU_SSE;
1084 if( !(i_cpu & CPU_CAPABILITY_SSE2) )
1086 p_sys->param.cpu &= ~X264_CPU_SSE2;
1089 /* BUILD 29 adds support for multi-threaded encoding while BUILD 49 (r543)
1090 also adds support for threads = 0 for automatically selecting an optimal
1091 value (cores * 1.5) based on detected CPUs. Default behavior for x264 is
1092 threads = 1, however VLC usage differs and uses threads = 0 (auto) by
1093 default unless ofcourse transcode threads is explicitly specified.. */
1094 p_sys->param.i_threads = p_enc->i_threads;
1096 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "stats" );
1099 p_sys->param.rc.psz_stat_in =
1100 p_sys->param.rc.psz_stat_out =
1101 p_sys->psz_stat_name = psz_val;
1104 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "pass" );
1105 if( i_val > 0 && i_val <= 3 )
1107 p_sys->param.rc.b_stat_write = i_val & 1;
1108 p_sys->param.rc.b_stat_read = i_val & 2;
1111 /* We need to initialize pthreadw32 before we open the encoder,
1112 but only once for the whole application. Since pthreadw32
1113 doesn't keep a refcount, do it ourselves. */
1114 #ifdef PTW32_STATIC_LIB
1115 vlc_value_t lock, count;
1117 var_Create( p_enc->p_libvlc, "pthread_win32_mutex", VLC_VAR_MUTEX );
1118 var_Get( p_enc->p_libvlc, "pthread_win32_mutex", &lock );
1119 vlc_mutex_lock( lock.p_address );
1121 var_Create( p_enc->p_libvlc, "pthread_win32_count", VLC_VAR_INTEGER );
1122 var_Get( p_enc->p_libvlc, "pthread_win32_count", &count );
1124 if( count.i_int == 0 )
1126 msg_Dbg( p_enc, "initializing pthread-win32" );
1127 if( !pthread_win32_process_attach_np() || !pthread_win32_thread_attach_np() )
1129 msg_Warn( p_enc, "pthread Win32 Initialization failed" );
1130 vlc_mutex_unlock( lock.p_address );
1131 return VLC_EGENERIC;
1136 var_Set( p_enc->p_libvlc, "pthread_win32_count", count );
1137 vlc_mutex_unlock( lock.p_address );
1141 /* Set lookahead value to lower than default,
1142 * as rtp-output without mux doesn't handle
1143 * difference that well yet*/
1144 p_sys->param.rc.i_lookahead=5;
1146 /* Open the encoder */
1147 p_sys->h = x264_encoder_open( &p_sys->param );
1149 if( p_sys->h == NULL )
1151 msg_Err( p_enc, "cannot open x264 encoder" );
1152 Close( VLC_OBJECT(p_enc) );
1153 return VLC_EGENERIC;
1157 p_sys->i_buffer = 4 * p_enc->fmt_in.video.i_width *
1158 p_enc->fmt_in.video.i_height + 1000;
1159 p_sys->p_buffer = malloc( p_sys->i_buffer );
1160 if( !p_sys->p_buffer )
1162 Close( VLC_OBJECT(p_enc) );
1166 /* get the globals headers */
1167 p_enc->fmt_out.i_extra = 0;
1168 p_enc->fmt_out.p_extra = NULL;
1170 p_enc->fmt_out.i_extra = x264_encoder_headers( p_sys->h, &nal, &i_nal );
1171 p_enc->fmt_out.p_extra = malloc( p_enc->fmt_out.i_extra );
1172 if( !p_enc->fmt_out.p_extra )
1174 Close( VLC_OBJECT(p_enc) );
1177 void *p_tmp = p_enc->fmt_out.p_extra;
1178 for( i = 0; i < i_nal; i++ )
1180 memcpy( p_tmp, nal[i].p_payload, nal[i].i_payload );
1181 p_tmp += nal[i].i_payload;
1187 /****************************************************************************
1189 ****************************************************************************/
1190 static block_t *Encode( encoder_t *p_enc, picture_t *p_pict )
1192 encoder_sys_t *p_sys = p_enc->p_sys;
1196 int i_nal, i_out, i;
1199 memset( &pic, 0, sizeof( x264_picture_t ) );
1200 pic.i_pts = p_pict->date;
1201 pic.img.i_csp = X264_CSP_I420;
1202 pic.img.i_plane = p_pict->i_planes;
1203 for( i = 0; i < p_pict->i_planes; i++ )
1205 pic.img.plane[i] = p_pict->p[i].p_pixels;
1206 pic.img.i_stride[i] = p_pict->p[i].i_pitch;
1209 x264_encoder_encode( p_sys->h, &nal, &i_nal, &pic, &pic );
1211 if( !i_nal ) return NULL;
1213 for( i = 0, i_out = 0; i < i_nal; i++ )
1215 memcpy( p_sys->p_buffer + i_out, nal[i].p_payload, nal[i].i_payload );
1216 i_out += nal[i].i_payload;
1219 p_block = block_New( p_enc, i_out );
1220 if( !p_block ) return NULL;
1221 memcpy( p_block->p_buffer, p_sys->p_buffer, i_out );
1223 if( pic.i_type == X264_TYPE_IDR || pic.i_type == X264_TYPE_I )
1224 p_block->i_flags |= BLOCK_FLAG_TYPE_I;
1225 else if( pic.i_type == X264_TYPE_P )
1226 p_block->i_flags |= BLOCK_FLAG_TYPE_P;
1227 else if( pic.i_type == X264_TYPE_B )
1228 p_block->i_flags |= BLOCK_FLAG_TYPE_B;
1230 /* This isn't really valid for streams with B-frames */
1231 p_block->i_length = INT64_C(1000000) *
1232 p_enc->fmt_in.video.i_frame_rate_base /
1233 p_enc->fmt_in.video.i_frame_rate;
1235 p_block->i_pts = pic.i_pts;
1237 if( p_sys->param.i_bframe > 0 )
1239 if( p_block->i_flags & BLOCK_FLAG_TYPE_B )
1241 /* FIXME : this is wrong if bpyramid is set */
1242 p_block->i_dts = p_block->i_pts;
1243 p_sys->i_interpolated_dts = p_block->i_dts;
1247 if( p_sys->i_interpolated_dts )
1249 p_block->i_dts = p_sys->i_interpolated_dts;
1253 /* Let's put something sensible */
1254 p_block->i_dts = p_block->i_pts;
1257 p_sys->i_interpolated_dts += p_block->i_length;
1262 p_block->i_dts = p_block->i_pts;
1268 /*****************************************************************************
1269 * CloseEncoder: x264 encoder destruction
1270 *****************************************************************************/
1271 static void Close( vlc_object_t *p_this )
1273 encoder_t *p_enc = (encoder_t *)p_this;
1274 encoder_sys_t *p_sys = p_enc->p_sys;
1276 free( p_sys->psz_stat_name );
1279 x264_encoder_close( p_sys->h );
1281 #ifdef PTW32_STATIC_LIB
1282 vlc_value_t lock, count;
1284 var_Get( p_enc->p_libvlc, "pthread_win32_mutex", &lock );
1285 vlc_mutex_lock( lock.p_address );
1287 var_Get( p_enc->p_libvlc, "pthread_win32_count", &count );
1289 var_Set( p_enc->p_libvlc, "pthread_win32_count", count );
1291 if( count.i_int == 0 )
1293 pthread_win32_thread_detach_np();
1294 pthread_win32_process_detach_np();
1295 msg_Dbg( p_enc, "pthread-win32 deinitialized" );
1297 vlc_mutex_unlock( lock.p_address );
1300 free( p_sys->p_buffer );