1 /*****************************************************************************
2 * x264.c: h264 video encoder
3 *****************************************************************************
4 * Copyright (C) 2004-2010 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>
40 #ifdef PTW32_STATIC_LIB
45 #define SOUT_CFG_PREFIX "sout-x264-"
47 /*****************************************************************************
49 *****************************************************************************/
50 static int Open ( vlc_object_t * );
51 static void Close( vlc_object_t * );
53 /* Frame-type options */
55 #define KEYINT_TEXT N_("Maximum GOP size")
56 #define KEYINT_LONGTEXT N_( "Sets maximum interval between IDR-frames." \
57 "Larger values save bits, thus improving quality for a given bitrate at " \
58 "the cost of seeking precision." )
60 #define MIN_KEYINT_TEXT N_("Minimum GOP size")
61 #define MIN_KEYINT_LONGTEXT N_( "Sets minimum interval between IDR-frames. " \
62 "In H.264, I-frames do not necessarily bound a closed GOP because it is " \
63 "allowable for a P-frame to be predicted from more frames than just the " \
64 "one frame before it (also see reference frame option). Therefore, " \
65 "I-frames are not necessarily seekable. IDR-frames restrict subsequent " \
66 "P-frames from referring to any frame prior to the IDR-frame. \n" \
67 "If scenecuts appear within this interval, they are still encoded as " \
68 "I-frames, but do not start a new GOP." )
70 #define SCENE_TEXT N_("Extra I-frames aggressivity" )
71 #define SCENE_LONGTEXT N_( "Scene-cut detection. Controls how " \
72 "aggressively to insert extra I-frames. With small values of " \
73 "scenecut, the codec often has " \
74 "to force an I-frame when it would exceed keyint. " \
75 "Good values of scenecut may find a better location for the " \
76 "I-frame. Large values use more I-frames " \
77 "than necessary, thus wasting bits. -1 disables scene-cut detection, so " \
78 "I-frames are inserted only every other keyint frames, which probably " \
79 "leads to ugly encoding artifacts. Range 1 to 100." )
82 #define BFRAMES_TEXT N_("B-frames between I and P")
83 #define BFRAMES_LONGTEXT N_( "Number of consecutive B-frames between I and " \
84 "P-frames. Range 1 to 16." )
86 #define B_ADAPT_TEXT N_("Adaptive B-frame decision")
87 #define B_ADAPT_LONGTEXT N_( "Force the specified number of " \
88 "consecutive B-frames to be used, except possibly before an I-frame." \
91 #define B_BIAS_TEXT N_("Influence (bias) B-frames usage")
92 #define B_BIAS_LONGTEXT N_( "Bias the choice to use B-frames. Positive values " \
93 "cause more B-frames, negative values cause less B-frames." )
96 #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 CABAC_TEXT N_("CABAC")
106 #define CABAC_LONGTEXT N_( "CABAC (Context-Adaptive Binary Arithmetic "\
107 "Coding). Slightly slows down encoding and decoding, but should save " \
108 "10 to 15% bitrate." )
110 #define REF_TEXT N_("Number of reference frames")
111 #define REF_LONGTEXT N_( "Number of previous frames used as predictors. " \
112 "This is effective in Anime, but seems to make little difference in " \
113 "live-action source material. Some decoders are unable to deal with " \
114 "large frameref values. Range 1 to 16." )
116 #define NF_TEXT N_("Skip loop filter")
117 #define NF_LONGTEXT N_( "Deactivate the deblocking loop filter (decreases quality).")
119 #define FILTER_TEXT N_("Loop filter AlphaC0 and Beta parameters alpha:beta")
120 #define FILTER_LONGTEXT N_( "Loop filter AlphaC0 and Beta parameters. " \
121 "Range -6 to 6 for both alpha and beta parameters. -6 means light " \
122 "filter, 6 means strong.")
124 #define LEVEL_TEXT N_("H.264 level")
125 #define LEVEL_LONGTEXT N_( "Specify H.264 level (as defined by Annex A " \
126 "of the standard). Levels are not enforced; it's up to the user to select " \
127 "a level compatible with the rest of the encoding options. Range 1 to 5.1 " \
128 "(10 to 51 is also allowed). Set to 0 for letting x264 set level.")
130 #define PROFILE_TEXT N_("H.264 profile")
131 #define PROFILE_LONGTEXT N_("Specify H.264 profile which limits are enforced over" \
134 /* In order to play an interlaced output stream encoded by x264, a decoder needs
135 mbaff support. r570 is using the 'mb' part and not 'aff' yet; so it's really
136 'pure-interlaced' mode */
137 #define INTERLACED_TEXT N_("Interlaced mode")
138 #define INTERLACED_LONGTEXT N_( "Pure-interlaced mode.")
140 #define INTRAREFRESH_TEXT N_("Use Periodic Intra Refresh")
141 #define INTRAREFRESH_LONGTEXT N_("Use Periodic Intra Refresh instead of IDR frames")
143 #define MBTREE_TEXT N_("Use mb-tree ratecontrol")
144 #define MBTREE_LONGTEXT N_("You can disable use of Macroblock-tree on ratecontrol")
146 #define SLICE_COUNT N_("Force number of slices per frame")
147 #define SLICE_COUNT_LONGTEXT N_("Force rectangular slices and is overridden by other slicing optinos")
149 #define SLICE_MAX_SIZE N_("Limit the size of each slice in bytes")
150 #define SLICE_MAX_SIZE_LONGTEXT N_("Sets a maximum slice size in bytes, Includes NAL overhead in size")
152 #define SLICE_MAX_MBS N_("Limit the size of each slice in macroblocks")
153 #define SLICE_MAX_MBS_LONGTEXT N_("Sets a maximum number of macroblocks per slice")
156 #define QP_TEXT N_("Set QP")
157 #define QP_LONGTEXT N_( "This selects the quantizer to use. " \
158 "Lower values result in better fidelity, but higher bitrates. 26 is a " \
159 "good default value. Range 0 (lossless) to 51." )
161 #define CRF_TEXT N_("Quality-based VBR")
162 #define CRF_LONGTEXT N_( "1-pass Quality-based VBR. Range 0 to 51." )
164 #define QPMIN_TEXT N_("Min QP")
165 #define QPMIN_LONGTEXT N_( "Minimum quantizer parameter. 15 to 35 seems to " \
166 "be a useful range." )
168 #define QPMAX_TEXT N_("Max QP")
169 #define QPMAX_LONGTEXT N_( "Maximum quantizer parameter." )
171 #define QPSTEP_TEXT N_("Max QP step")
172 #define QPSTEP_LONGTEXT N_( "Max QP step between frames.")
174 #define RATETOL_TEXT N_("Average bitrate tolerance")
175 #define RATETOL_LONGTEXT N_( "Allowed variance in average " \
176 "bitrate (in kbits/s).")
178 #define VBV_MAXRATE_TEXT N_("Max local bitrate")
179 #define VBV_MAXRATE_LONGTEXT N_( "Sets a maximum local bitrate (in kbits/s).")
181 #define VBV_BUFSIZE_TEXT N_("VBV buffer")
182 #define VBV_BUFSIZE_LONGTEXT N_( "Averaging period for the maximum " \
183 "local bitrate (in kbits).")
185 #define VBV_INIT_TEXT N_("Initial VBV buffer occupancy")
186 #define VBV_INIT_LONGTEXT N_( "Sets the initial buffer occupancy as a " \
187 "fraction of the buffer size. Range 0.0 to 1.0.")
189 #define AQ_MODE_TEXT N_("How AQ distributes bits")
190 #define AQ_MODE_LONGTEXT N_("Defines bitdistribution mode for AQ, default 1\n" \
192 " - 1: Current x264 default mode\n"\
193 " - 2: uses log(var)^2 instead of log(var) and attempts to adapt strength per frame")
195 #define AQ_STRENGTH_TEXT N_("Strength of AQ")
196 #define AQ_STRENGTH_LONGTEXT N_("Strength to reduce blocking and blurring in flat\n"\
197 "and textured areas, default 1.0 recommented to be between 0..2\n"\
201 /* IP Ratio < 1 is technically valid but should never improve quality */
202 #define IPRATIO_TEXT N_("QP factor between I and P")
203 #define IPRATIO_LONGTEXT N_( "QP factor between I and P. Range 1.0 to 2.0.")
205 /* PB ratio < 1 is not valid and breaks ratecontrol */
206 #define PBRATIO_TEXT N_("QP factor between P and B")
207 #define PBRATIO_LONGTEXT N_( "QP factor between P and B. Range 1.0 to 2.0.")
209 #define CHROMA_QP_OFFSET_TEXT N_("QP difference between chroma and luma")
210 #define CHROMA_QP_OFFSET_LONGTEXT N_( "QP difference between chroma and luma.")
212 #define PASS_TEXT N_("Multipass ratecontrol")
213 #define PASS_LONGTEXT N_( "Multipass ratecontrol:\n" \
214 " - 1: First pass, creates stats file\n" \
215 " - 2: Last pass, does not overwrite stats file\n" \
216 " - 3: Nth pass, overwrites stats file\n" )
218 #define QCOMP_TEXT N_("QP curve compression")
219 #define QCOMP_LONGTEXT N_( "QP curve compression. Range 0.0 (CBR) to 1.0 (QCP).")
221 #define CPLXBLUR_TEXT N_("Reduce fluctuations in QP")
222 #define CPLXBLUR_LONGTEXT N_( "This reduces the fluctuations in QP " \
223 "before curve compression. Temporally blurs complexity.")
225 #define QBLUR_TEXT N_("Reduce fluctuations in QP")
226 #define QBLUR_LONGTEXT N_( "This reduces the fluctations in QP " \
227 "after curve compression. Temporally blurs quants.")
231 #define ANALYSE_TEXT N_("Partitions to consider")
232 #define ANALYSE_LONGTEXT N_( "Partitions to consider in analyse mode: \n" \
235 " - normal: i4x4,p8x8,(i8x8)\n" \
236 " - slow : i4x4,p8x8,(i8x8),b8x8\n" \
237 " - all : i4x4,p8x8,(i8x8),b8x8,p4x4\n" \
238 "(p4x4 requires p8x8. i8x8 requires 8x8dct).")
240 #define DIRECT_PRED_TEXT N_("Direct MV prediction mode")
241 #define DIRECT_PRED_LONGTEXT N_( "Direct MV prediction mode.")
243 #define DIRECT_PRED_SIZE_TEXT N_("Direct prediction size")
244 #define DIRECT_PRED_SIZE_LONGTEXT N_( "Direct prediction size: "\
247 " - -1: smallest possible according to level\n" )
249 #define WEIGHTB_TEXT N_("Weighted prediction for B-frames")
250 #define WEIGHTB_LONGTEXT N_( "Weighted prediction for B-frames.")
252 #define WEIGHTP_TEXT N_("Weighted prediction for P-frames")
253 #define WEIGHTP_LONGTEXT N_(" Weighted prediction for P-frames: "\
255 " - 1: Blind offset\n"\
256 " - 2: Smart analysis\n" )
258 #define ME_TEXT N_("Integer pixel motion estimation method")
259 #define ME_LONGTEXT N_( "Selects the motion estimation algorithm: "\
260 " - dia: diamond search, radius 1 (fast)\n" \
261 " - hex: hexagonal search, radius 2\n" \
262 " - umh: uneven multi-hexagon search (better but slower)\n" \
263 " - esa: exhaustive search (extremely slow, primarily for testing)\n" \
264 " - tesa: hadamard exhaustive search (extremely slow, primarily for testing)\n" )
266 #define MERANGE_TEXT N_("Maximum motion vector search range")
267 #define MERANGE_LONGTEXT N_( "Maximum distance to search for " \
268 "motion estimation, measured from predicted position(s). " \
269 "Default of 16 is good for most footage, high motion sequences may " \
270 "benefit from settings between 24 and 32. Range 0 to 64." )
272 #define MVRANGE_TEXT N_("Maximum motion vector length")
273 #define MVRANGE_LONGTEXT N_( "Maximum motion vector length in pixels. " \
274 "-1 is automatic, based on level." )
276 #define MVRANGE_THREAD_TEXT N_("Minimum buffer space between threads")
277 #define MVRANGE_THREAD_LONGTEXT N_( "Minimum buffer space between threads. " \
278 "-1 is automatic, based on number of threads." )
280 #define PSY_RD_TEXT N_( "Strength of psychovisual optimization, default is \"1.0:0.0\"")
281 #define PSY_RD_LONGTEXT N_( "First parameter controls if RD is on (subme>=6) or off"\
282 "second parameter controls if Trellis is used on psychovisual optimization," \
285 #define SUBME_TEXT N_("Subpixel motion estimation and partition decision " \
287 #define SUBME_LONGTEXT N_( "This parameter controls quality versus speed " \
288 "tradeoffs involved in the motion estimation decision process " \
289 "(lower = quicker and higher = better quality). Range 1 to 9." )
291 #define B_RDO_TEXT N_("RD based mode decision for B-frames")
292 #define B_RDO_LONGTEXT N_( "RD based mode decision for B-frames. This " \
293 "requires subme 6 (or higher).")
295 #define MIXED_REFS_TEXT N_("Decide references on a per partition basis")
296 #define MIXED_REFS_LONGTEXT N_( "Allows each 8x8 or 16x8 partition to " \
297 "independently select a reference frame, as opposed to only one ref " \
300 #define CHROMA_ME_TEXT N_("Chroma in motion estimation")
301 #define CHROMA_ME_LONGTEXT N_( "Chroma ME for subpel and mode decision in " \
304 #define BIME_TEXT N_("Jointly optimize both MVs in B-frames")
305 #define BIME_LONGTEXT N_( "Joint bidirectional motion refinement.")
307 #define TRANSFORM_8X8DCT_TEXT N_("Adaptive spatial transform size")
308 #define TRANSFORM_8X8DCT_LONGTEXT N_( \
309 "SATD-based decision for 8x8 transform in inter-MBs.")
311 #define TRELLIS_TEXT N_("Trellis RD quantization" )
312 #define TRELLIS_LONGTEXT N_( "Trellis RD quantization: \n" \
314 " - 1: enabled only on the final encode of a MB\n" \
315 " - 2: enabled on all mode decisions\n" \
316 "This requires CABAC." )
318 #define FAST_PSKIP_TEXT N_("Early SKIP detection on P-frames")
319 #define FAST_PSKIP_LONGTEXT N_( "Early SKIP detection on P-frames.")
321 #define DCT_DECIMATE_TEXT N_("Coefficient thresholding on P-frames")
322 #define DCT_DECIMATE_LONGTEXT N_( "Coefficient thresholding on P-frames." \
323 "Eliminate dct blocks containing only a small single coefficient.")
325 #define PSY_TEXT N_("Use Psy-optimizations")
326 #define PSY_LONGTEXT N_("Use all visual optimizations that can worsen both PSNR and SSIM")
328 /* Noise reduction 1 is too weak to measure, suggest at least 10 */
329 #define NR_TEXT N_("Noise reduction")
330 #define NR_LONGTEXT N_( "Dct-domain noise reduction. Adaptive pseudo-deadzone. " \
331 "10 to 1000 seems to be a useful range." )
333 #define DEADZONE_INTER_TEXT N_("Inter luma quantization deadzone")
334 #define DEADZONE_INTER_LONGTEXT N_( "Set the size of the inter luma quantization deadzone. " \
337 #define DEADZONE_INTRA_TEXT N_("Intra luma quantization deadzone")
338 #define DEADZONE_INTRA_LONGTEXT N_( "Set the size of the intra luma quantization deadzone. " \
343 #define NON_DETERMINISTIC_TEXT N_("Non-deterministic optimizations when threaded")
344 #define NON_DETERMINISTIC_LONGTEXT N_( "Slightly improve quality of SMP, " \
345 "at the cost of repeatability.")
347 #define ASM_TEXT N_("CPU optimizations")
348 #define ASM_LONGTEXT N_( "Use assembler CPU optimizations.")
350 #define STATS_TEXT N_("Filename for 2 pass stats file")
351 #define STATS_LONGTEXT N_( "Filename for 2 pass stats file for multi-pass encoding.")
353 #define PSNR_TEXT N_("PSNR computation")
354 #define PSNR_LONGTEXT N_( "Compute and print PSNR stats. This has no effect on " \
355 "the actual encoding quality." )
357 #define SSIM_TEXT N_("SSIM computation")
358 #define SSIM_LONGTEXT N_( "Compute and print SSIM stats. This has no effect on " \
359 "the actual encoding quality." )
361 #define QUIET_TEXT N_("Quiet mode")
362 #define QUIET_LONGTEXT N_( "Quiet mode.")
364 #define VERBOSE_TEXT N_("Statistics")
365 #define VERBOSE_LONGTEXT N_( "Print stats for each frame.")
367 #define SPS_ID_TEXT N_("SPS and PPS id numbers")
368 #define SPS_ID_LONGTEXT N_( "Set SPS and PPS id numbers to allow concatenating " \
369 "streams with different settings.")
371 #define AUD_TEXT N_("Access unit delimiters")
372 #define AUD_LONGTEXT N_( "Generate access unit delimiter NAL units.")
374 #define LOOKAHEAD_TEXT N_("Framecount to use on frametype lookahead")
375 #define LOOKAHEAD_LONGTEXT N_("Framecount to use on frametype lookahead. " \
376 "Currently default is lower than x264 default because unmuxable output" \
377 "doesn't handle larger values that well yet" )
379 #define HRD_TEXT N_("HRD-timing information")
380 #define HRD_LONGTEXT N_("HRD-timing information")
382 #define TUNE_TEXT N_("Tune the settings for a particular type of source or situation. " \
383 "Overridden by user settings." )
384 #define PRESET_TEXT N_("Use preset as default settings. Overridden by user settings." )
386 static const char *const enc_me_list[] =
387 { "dia", "hex", "umh", "esa", "tesa" };
388 static const char *const enc_me_list_text[] =
389 { N_("dia"), N_("hex"), N_("umh"), N_("esa"), N_("tesa") };
391 static const char *const profile_list[] =
392 { "baseline", "main", "high" };
394 static const char *const bpyramid_list[] =
395 { "none", "strict", "normal" };
397 static const char *const enc_analyse_list[] =
398 { "none", "fast", "normal", "slow", "all" };
399 static const char *const enc_analyse_list_text[] =
400 { N_("none"), N_("fast"), N_("normal"), N_("slow"), N_("all") };
402 static const char *const direct_pred_list[] =
403 { "none", "spatial", "temporal", "auto" };
404 static const char *const direct_pred_list_text[] =
405 { N_("none"), N_("spatial"), N_("temporal"), N_("auto") };
408 set_description( N_("H.264/MPEG4 AVC encoder (x264)"))
409 set_capability( "encoder", 200 )
410 set_callbacks( Open, Close )
411 set_category( CAT_INPUT )
412 set_subcategory( SUBCAT_INPUT_VCODEC )
414 /* Frame-type options */
416 add_integer( SOUT_CFG_PREFIX "keyint", 250, NULL, KEYINT_TEXT,
417 KEYINT_LONGTEXT, false )
419 add_integer( SOUT_CFG_PREFIX "min-keyint", 25, NULL, MIN_KEYINT_TEXT,
420 MIN_KEYINT_LONGTEXT, false )
422 add_integer( SOUT_CFG_PREFIX "scenecut", 40, NULL, SCENE_TEXT,
423 SCENE_LONGTEXT, false )
424 change_integer_range( -1, 100 )
426 add_obsolete_bool( SOUT_CFG_PREFIX "pre-scenecut" )
428 add_integer( SOUT_CFG_PREFIX "bframes", 3, NULL, BFRAMES_TEXT,
429 BFRAMES_LONGTEXT, false )
430 change_integer_range( 0, 16 )
432 add_integer( SOUT_CFG_PREFIX "b-adapt", 1, NULL, B_ADAPT_TEXT,
433 B_ADAPT_LONGTEXT, false )
434 change_integer_range( 0, 2 )
436 add_integer( SOUT_CFG_PREFIX "b-bias", 0, NULL, B_BIAS_TEXT,
437 B_BIAS_LONGTEXT, false )
438 change_integer_range( -100, 100 )
440 add_string( SOUT_CFG_PREFIX "bpyramid", "none", NULL, BPYRAMID_TEXT,
441 BPYRAMID_LONGTEXT, false )
442 change_string_list( bpyramid_list, bpyramid_list, 0 );
444 add_bool( SOUT_CFG_PREFIX "cabac", true, NULL, CABAC_TEXT, CABAC_LONGTEXT,
447 add_integer( SOUT_CFG_PREFIX "ref", 3, NULL, REF_TEXT,
448 REF_LONGTEXT, false )
449 change_integer_range( 1, 16 )
451 add_bool( SOUT_CFG_PREFIX "nf", false, NULL, NF_TEXT,
454 add_string( SOUT_CFG_PREFIX "deblock", "0:0", NULL, FILTER_TEXT,
455 FILTER_LONGTEXT, false )
457 add_string( SOUT_CFG_PREFIX "psy-rd", "1.0:0.0", NULL, PSY_RD_TEXT,
458 PSY_RD_LONGTEXT, false )
460 add_bool( SOUT_CFG_PREFIX "psy", true, NULL, PSY_TEXT, PSY_LONGTEXT, false )
462 add_string( SOUT_CFG_PREFIX "level", "0", NULL, LEVEL_TEXT,
463 LEVEL_LONGTEXT, false )
465 add_string( SOUT_CFG_PREFIX "profile", "high", NULL, PROFILE_TEXT,
466 PROFILE_LONGTEXT, false )
467 change_string_list( x264_profile_names, x264_profile_names, 0 );
469 add_bool( SOUT_CFG_PREFIX "interlaced", false, NULL, INTERLACED_TEXT, INTERLACED_LONGTEXT,
472 add_integer( SOUT_CFG_PREFIX "slices", 0, NULL, SLICE_COUNT, SLICE_COUNT_LONGTEXT, false )
473 add_integer( SOUT_CFG_PREFIX "slice-max-size", 0, NULL, SLICE_MAX_SIZE, SLICE_MAX_SIZE_LONGTEXT, false )
474 add_integer( SOUT_CFG_PREFIX "slice-max-mbs", 0, NULL, SLICE_MAX_MBS, SLICE_MAX_MBS_LONGTEXT, false )
477 add_string( SOUT_CFG_PREFIX "hrd", "none", NULL, HRD_TEXT, HRD_LONGTEXT, false )
478 change_string_list( x264_nal_hrd_names, x264_nal_hrd_names, 0 );
484 add_integer( SOUT_CFG_PREFIX "qp", -1, NULL, QP_TEXT, QP_LONGTEXT,
486 change_integer_range( -1, 51 ) /* QP 0 -> lossless encoding */
488 add_integer( SOUT_CFG_PREFIX "crf", 23, NULL, CRF_TEXT,
489 CRF_LONGTEXT, false )
490 change_integer_range( 0, 51 )
492 add_integer( SOUT_CFG_PREFIX "qpmin", 10, NULL, QPMIN_TEXT,
493 QPMIN_LONGTEXT, false )
494 change_integer_range( 0, 51 )
496 add_integer( SOUT_CFG_PREFIX "qpmax", 51, NULL, QPMAX_TEXT,
497 QPMAX_LONGTEXT, false )
498 change_integer_range( 0, 51 )
500 add_integer( SOUT_CFG_PREFIX "qpstep", 4, NULL, QPSTEP_TEXT,
501 QPSTEP_LONGTEXT, false )
502 change_integer_range( 0, 51 )
504 add_float( SOUT_CFG_PREFIX "ratetol", 1.0, NULL, RATETOL_TEXT,
505 RATETOL_LONGTEXT, false )
506 change_float_range( 0, 100 )
508 add_integer( SOUT_CFG_PREFIX "vbv-maxrate", 0, NULL, VBV_MAXRATE_TEXT,
509 VBV_MAXRATE_LONGTEXT, false )
511 add_integer( SOUT_CFG_PREFIX "vbv-bufsize", 0, NULL, VBV_BUFSIZE_TEXT,
512 VBV_BUFSIZE_LONGTEXT, false )
514 add_float( SOUT_CFG_PREFIX "vbv-init", 0.9, NULL, VBV_INIT_TEXT,
515 VBV_INIT_LONGTEXT, false )
516 change_float_range( 0, 1 )
518 add_float( SOUT_CFG_PREFIX "ipratio", 1.40, NULL, IPRATIO_TEXT,
519 IPRATIO_LONGTEXT, false )
520 change_float_range( 1, 2 )
522 add_float( SOUT_CFG_PREFIX "pbratio", 1.30, NULL, PBRATIO_TEXT,
523 PBRATIO_LONGTEXT, false )
524 change_float_range( 1, 2 )
526 add_integer( SOUT_CFG_PREFIX "chroma-qp-offset", 0, NULL, CHROMA_QP_OFFSET_TEXT,
527 CHROMA_QP_OFFSET_LONGTEXT, false )
529 add_integer( SOUT_CFG_PREFIX "pass", 0, NULL, PASS_TEXT,
530 PASS_LONGTEXT, false )
531 change_integer_range( 0, 3 )
533 add_float( SOUT_CFG_PREFIX "qcomp", 0.60, NULL, QCOMP_TEXT,
534 QCOMP_LONGTEXT, false )
535 change_float_range( 0, 1 )
537 add_float( SOUT_CFG_PREFIX "cplxblur", 20.0, NULL, CPLXBLUR_TEXT,
538 CPLXBLUR_LONGTEXT, false )
540 add_float( SOUT_CFG_PREFIX "qblur", 0.5, NULL, QBLUR_TEXT,
541 QBLUR_LONGTEXT, false )
543 add_integer( SOUT_CFG_PREFIX "aq-mode", X264_AQ_VARIANCE, NULL, AQ_MODE_TEXT,
544 AQ_MODE_LONGTEXT, false )
545 change_integer_range( 0, 2 )
546 add_float( SOUT_CFG_PREFIX "aq-strength", 1.0, NULL, AQ_STRENGTH_TEXT,
547 AQ_STRENGTH_LONGTEXT, false )
551 /* x264 partitions = none (default). set at least "normal" mode. */
552 add_string( SOUT_CFG_PREFIX "partitions", "normal", NULL, ANALYSE_TEXT,
553 ANALYSE_LONGTEXT, false )
554 change_string_list( enc_analyse_list, enc_analyse_list_text, 0 );
556 add_string( SOUT_CFG_PREFIX "direct", "spatial", NULL, DIRECT_PRED_TEXT,
557 DIRECT_PRED_LONGTEXT, false )
558 change_string_list( direct_pred_list, direct_pred_list_text, 0 );
560 add_integer( SOUT_CFG_PREFIX "direct-8x8", 1, NULL, DIRECT_PRED_SIZE_TEXT,
561 DIRECT_PRED_SIZE_LONGTEXT, false )
562 change_integer_range( -1, 1 )
564 add_bool( SOUT_CFG_PREFIX "weightb", true, NULL, WEIGHTB_TEXT,
565 WEIGHTB_LONGTEXT, false )
567 add_integer( SOUT_CFG_PREFIX "weightp", 2, NULL, WEIGHTP_TEXT,
568 WEIGHTP_LONGTEXT, false )
569 change_integer_range( 0, 2 )
571 add_string( SOUT_CFG_PREFIX "me", "hex", NULL, ME_TEXT,
573 change_string_list( enc_me_list, enc_me_list_text, 0 );
575 add_integer( SOUT_CFG_PREFIX "merange", 16, NULL, MERANGE_TEXT,
576 MERANGE_LONGTEXT, false )
577 change_integer_range( 1, 64 )
579 add_integer( SOUT_CFG_PREFIX "mvrange", -1, NULL, MVRANGE_TEXT,
580 MVRANGE_LONGTEXT, false )
582 add_integer( SOUT_CFG_PREFIX "mvrange-thread", -1, NULL, MVRANGE_THREAD_TEXT,
583 MVRANGE_THREAD_LONGTEXT, false )
585 add_integer( SOUT_CFG_PREFIX "subme", 7, NULL, SUBME_TEXT,
586 SUBME_LONGTEXT, false )
588 add_obsolete_bool( SOUT_CFG_PREFIX "b-rdo" )
590 add_bool( SOUT_CFG_PREFIX "mixed-refs", true, NULL, MIXED_REFS_TEXT,
591 MIXED_REFS_LONGTEXT, false )
593 add_bool( SOUT_CFG_PREFIX "chroma-me", true, NULL, CHROMA_ME_TEXT,
594 CHROMA_ME_LONGTEXT, false )
596 add_obsolete_bool( SOUT_CFG_PREFIX "bime" )
598 add_bool( SOUT_CFG_PREFIX "8x8dct", false, NULL, TRANSFORM_8X8DCT_TEXT,
599 TRANSFORM_8X8DCT_LONGTEXT, false )
601 add_integer( SOUT_CFG_PREFIX "trellis", 1, NULL, TRELLIS_TEXT,
602 TRELLIS_LONGTEXT, false )
603 change_integer_range( 0, 2 )
605 add_integer( SOUT_CFG_PREFIX "lookahead", 5, NULL, LOOKAHEAD_TEXT,
606 LOOKAHEAD_LONGTEXT, false )
607 change_integer_range( 0, 60 )
609 add_bool( SOUT_CFG_PREFIX "intra-refresh", false, NULL, INTRAREFRESH_TEXT,
610 INTRAREFRESH_LONGTEXT, false )
612 add_bool( SOUT_CFG_PREFIX "mbtree", true, NULL, MBTREE_TEXT, MBTREE_LONGTEXT, false )
614 add_bool( SOUT_CFG_PREFIX "fast-pskip", true, NULL, FAST_PSKIP_TEXT,
615 FAST_PSKIP_LONGTEXT, false )
617 add_bool( SOUT_CFG_PREFIX "dct-decimate", true, NULL, DCT_DECIMATE_TEXT,
618 DCT_DECIMATE_LONGTEXT, false )
620 add_integer( SOUT_CFG_PREFIX "nr", 0, NULL, NR_TEXT,
622 change_integer_range( 0, 1000 )
624 add_integer( SOUT_CFG_PREFIX "deadzone-inter", 21, NULL, DEADZONE_INTER_TEXT,
625 DEADZONE_INTRA_LONGTEXT, false )
626 change_integer_range( 0, 32 )
628 add_integer( SOUT_CFG_PREFIX "deadzone-intra", 11, NULL, DEADZONE_INTRA_TEXT,
629 DEADZONE_INTRA_LONGTEXT, false )
630 change_integer_range( 0, 32 )
634 add_bool( SOUT_CFG_PREFIX "non-deterministic", false, NULL, NON_DETERMINISTIC_TEXT,
635 NON_DETERMINISTIC_LONGTEXT, false )
637 add_bool( SOUT_CFG_PREFIX "asm", true, NULL, ASM_TEXT,
638 ASM_LONGTEXT, false )
640 /* x264 psnr = 1 (default). disable PSNR computation for speed. */
641 add_bool( SOUT_CFG_PREFIX "psnr", false, NULL, PSNR_TEXT,
642 PSNR_LONGTEXT, false )
644 /* x264 ssim = 1 (default). disable SSIM computation for speed. */
645 add_bool( SOUT_CFG_PREFIX "ssim", false, NULL, SSIM_TEXT,
646 SSIM_LONGTEXT, false )
648 add_bool( SOUT_CFG_PREFIX "quiet", false, NULL, QUIET_TEXT,
649 QUIET_LONGTEXT, false )
651 add_integer( SOUT_CFG_PREFIX "sps-id", 0, NULL, SPS_ID_TEXT,
652 SPS_ID_LONGTEXT, false )
654 add_bool( SOUT_CFG_PREFIX "aud", false, NULL, AUD_TEXT,
655 AUD_LONGTEXT, false )
657 add_bool( SOUT_CFG_PREFIX "verbose", false, NULL, VERBOSE_TEXT,
658 VERBOSE_LONGTEXT, false )
660 add_string( SOUT_CFG_PREFIX "stats", "x264_2pass.log", NULL, STATS_TEXT,
661 STATS_LONGTEXT, false )
663 add_string( SOUT_CFG_PREFIX "preset", NULL , NULL, PRESET_TEXT , PRESET_TEXT, false )
664 change_string_list( x264_preset_names, x264_preset_names, 0 );
665 add_string( SOUT_CFG_PREFIX "tune", NULL , NULL, TUNE_TEXT, TUNE_TEXT, false )
666 change_string_list( x264_tune_names, x264_tune_names, 0 );
670 /*****************************************************************************
672 *****************************************************************************/
673 static const char *const ppsz_sout_options[] = {
674 "8x8dct", "asm", "aud", "bframes", "bime", "bpyramid",
675 "b-adapt", "b-bias", "b-rdo", "cabac", "chroma-me", "chroma-qp-offset",
676 "cplxblur", "crf", "dct-decimate", "deadzone-inter", "deadzone-intra",
677 "deblock", "direct", "direct-8x8", "fast-pskip",
678 "interlaced", "ipratio", "keyint", "level",
679 "me", "merange", "min-keyint", "mixed-refs", "mvrange", "mvrange-thread",
680 "nf", "non-deterministic", "nr", "partitions", "pass", "pbratio",
681 "pre-scenecut", "psnr", "qblur", "qp", "qcomp", "qpstep", "qpmax",
682 "qpmin", "quiet", "ratetol", "ref", "scenecut",
683 "sps-id", "ssim", "stats", "subme", "trellis",
684 "verbose", "vbv-bufsize", "vbv-init", "vbv-maxrate", "weightb", "weightp",
685 "aq-mode", "aq-strength", "psy-rd", "psy", "profile", "lookahead", "slices",
686 "slice-max-size", "slice-max-mbs", "intra-refresh", "mbtree", "hrd",
687 "tune","preset", NULL
690 static block_t *Encode( encoder_t *, picture_t * );
702 #ifdef PTW32_STATIC_LIB
703 static vlc_mutex_t pthread_win32_mutex = VLC_STATIC_MUTEX;
704 static int pthread_win32_count = 0;
707 /*****************************************************************************
708 * Open: probe the encoder
709 *****************************************************************************/
710 static int Open ( vlc_object_t *p_this )
712 encoder_t *p_enc = (encoder_t *)p_this;
713 encoder_sys_t *p_sys;
716 int i_qmin = 0, i_qmax = 0;
720 if( p_enc->fmt_out.i_codec != VLC_CODEC_H264 &&
725 /* X264_POINTVER or X264_VERSION are not available */
726 msg_Dbg ( p_enc, "version x264 0.%d.X", X264_BUILD );
728 config_ChainParse( p_enc, SOUT_CFG_PREFIX, ppsz_sout_options, p_enc->p_cfg );
730 p_enc->fmt_out.i_cat = VIDEO_ES;
731 p_enc->fmt_out.i_codec = VLC_CODEC_H264;
732 p_enc->fmt_in.i_codec = VLC_CODEC_I420;
734 p_enc->pf_encode_video = Encode;
735 p_enc->pf_encode_audio = NULL;
736 p_enc->p_sys = p_sys = malloc( sizeof( encoder_sys_t ) );
739 p_sys->i_initial_delay = 0;
740 p_sys->psz_stat_name = NULL;
742 x264_param_default( &p_sys->param );
743 char *psz_preset = var_GetString( p_enc, SOUT_CFG_PREFIX "preset" );
744 char *psz_tune = var_GetString( p_enc, SOUT_CFG_PREFIX "tune" );
745 if( *psz_preset == '\0' )
750 x264_param_default_preset( &p_sys->param, psz_preset, psz_tune );
753 p_sys->param.i_width = p_enc->fmt_in.video.i_width;
754 p_sys->param.i_height = p_enc->fmt_in.video.i_height;
756 if( fabs(var_GetFloat( p_enc, SOUT_CFG_PREFIX "qcomp" ) - 0.60) > 0.005 )
757 p_sys->param.rc.f_qcompress = var_GetFloat( p_enc, SOUT_CFG_PREFIX "qcomp" );
759 /* transcode-default bitrate is 0,
760 * set more to ABR if user specifies bitrate */
761 if( p_enc->fmt_out.i_bitrate > 0 )
763 p_sys->param.rc.i_bitrate = p_enc->fmt_out.i_bitrate / 1000;
764 p_sys->param.rc.i_rc_method = X264_RC_ABR;
766 else /* Set default to CRF */
768 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "crf" );
769 if( i_val > 0 && i_val <= 51 )
771 p_sys->param.rc.f_rf_constant = i_val;
772 p_sys->param.rc.i_rc_method = X264_RC_CRF;
776 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "qpstep" );
777 if( i_val >= 0 && i_val <= 51 ) p_sys->param.rc.i_qp_step = i_val;
779 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "qpmin" );
780 if( i_val >= 0 && i_val <= 51 )
783 p_sys->param.rc.i_qp_min = i_qmin;
785 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "qpmax" );
786 if( i_val >= 0 && i_val <= 51 )
789 p_sys->param.rc.i_qp_max = i_qmax;
792 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "qp" );
793 if( i_val >= 0 && i_val <= 51 )
795 if( i_qmin > i_val ) i_qmin = i_val;
796 if( i_qmax < i_val ) i_qmax = i_val;
798 /* User defined QP-value, so change ratecontrol method */
799 p_sys->param.rc.i_rc_method = X264_RC_CQP;
800 p_sys->param.rc.i_qp_constant = i_val;
801 p_sys->param.rc.i_qp_min = i_qmin;
802 p_sys->param.rc.i_qp_max = i_qmax;
806 p_sys->param.rc.f_rate_tolerance = var_GetFloat( p_enc,
807 SOUT_CFG_PREFIX "ratetol" );
808 p_sys->param.rc.f_vbv_buffer_init = var_GetFloat( p_enc,
809 SOUT_CFG_PREFIX "vbv-init" );
810 p_sys->param.rc.i_vbv_buffer_size = var_GetInteger( p_enc,
811 SOUT_CFG_PREFIX "vbv-bufsize" );
813 /* max bitrate = average bitrate -> CBR */
814 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "vbv-maxrate" );
816 if( !i_val && p_sys->param.rc.i_rc_method == X264_RC_ABR )
817 p_sys->param.rc.i_vbv_max_bitrate = p_sys->param.rc.i_bitrate;
819 p_sys->param.rc.i_vbv_max_bitrate = i_val;
822 if( !var_GetBool( p_enc, SOUT_CFG_PREFIX "cabac" ) )
823 p_sys->param.b_cabac = var_GetBool( p_enc, SOUT_CFG_PREFIX "cabac" );
825 /* disable deblocking when nf (no loop filter) is enabled */
826 if( var_GetBool( p_enc, SOUT_CFG_PREFIX "nf" ) )
827 p_sys->param.b_deblocking_filter = !var_GetBool( p_enc, SOUT_CFG_PREFIX "nf" );
829 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "deblock" );
832 if( atoi( psz_val ) != 0 )
834 char *p = strchr( psz_val, ':' );
835 p_sys->param.i_deblocking_filter_alphac0 = atoi( psz_val );
836 p_sys->param.i_deblocking_filter_beta = p ?
837 atoi( p+1 ) : p_sys->param.i_deblocking_filter_alphac0;
842 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "psy-rd" );
845 if( us_atof( psz_val ) != 1.0 )
847 char *p = strchr( psz_val, ':' );
848 p_sys->param.analyse.f_psy_rd = us_atof( psz_val );
849 p_sys->param.analyse.f_psy_trellis = p ? us_atof( p+1 ) : 0;
854 if( !var_GetBool( p_enc, SOUT_CFG_PREFIX "psy" ) )
855 p_sys->param.analyse.b_psy = var_GetBool( p_enc, SOUT_CFG_PREFIX "psy" );
857 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "level" );
860 if( us_atof (psz_val) < 6 && us_atof (psz_val) > 0 )
861 p_sys->param.i_level_idc = (int) (10 * us_atof (psz_val)
863 else if( atoi(psz_val) >= 10 && atoi(psz_val) <= 51 )
864 p_sys->param.i_level_idc = atoi (psz_val);
868 p_sys->param.b_interlaced = var_GetBool( p_enc, SOUT_CFG_PREFIX "interlaced" );
869 if( fabs(var_GetFloat( p_enc, SOUT_CFG_PREFIX "ipratio" ) - 1.4) > 0.005 )
870 p_sys->param.rc.f_ip_factor = var_GetFloat( p_enc, SOUT_CFG_PREFIX "ipratio" );
871 if( fabs(var_GetFloat( p_enc, SOUT_CFG_PREFIX "pbratio" ) - 1.3 ) > 0.005 )
872 p_sys->param.rc.f_pb_factor = var_GetFloat( p_enc, SOUT_CFG_PREFIX "pbratio" );
873 p_sys->param.rc.f_complexity_blur = var_GetFloat( p_enc, SOUT_CFG_PREFIX "cplxblur" );
874 p_sys->param.rc.f_qblur = var_GetFloat( p_enc, SOUT_CFG_PREFIX "qblur" );
875 if( var_GetInteger( p_enc, SOUT_CFG_PREFIX "aq-mode" ) != X264_AQ_VARIANCE )
876 p_sys->param.rc.i_aq_mode = var_GetInteger( p_enc, SOUT_CFG_PREFIX "aq-mode" );
877 if( fabs( var_GetFloat( p_enc, SOUT_CFG_PREFIX "aq-strength" ) - 1.0) > 0.005 )
878 p_sys->param.rc.f_aq_strength = var_GetFloat( p_enc, SOUT_CFG_PREFIX "aq-strength" );
880 if( var_GetBool( p_enc, SOUT_CFG_PREFIX "verbose" ) )
881 p_sys->param.i_log_level = X264_LOG_DEBUG;
883 if( var_GetBool( p_enc, SOUT_CFG_PREFIX "quiet" ) )
884 p_sys->param.i_log_level = X264_LOG_NONE;
886 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "sps-id" );
887 if( i_val >= 0 ) p_sys->param.i_sps_id = i_val;
889 if( var_GetBool( p_enc, SOUT_CFG_PREFIX "aud" ) )
890 p_sys->param.b_aud = true;
892 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "keyint" );
893 if( i_val > 0 && i_val != 250 ) p_sys->param.i_keyint_max = i_val;
895 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "min-keyint" );
896 if( i_val > 0 && i_val != 25 ) p_sys->param.i_keyint_min = i_val;
898 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "bframes" );
899 if( i_val >= 0 && i_val <= 16 && i_val != 3 )
900 p_sys->param.i_bframe = i_val;
902 p_sys->param.b_intra_refresh = var_GetBool( p_enc, SOUT_CFG_PREFIX "intra-refresh" );
904 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "bpyramid" );
905 if( strcmp( psz_val, "none" ) )
907 if ( !strcmp( psz_val, "strict" ) )
909 p_sys->param.i_bframe_pyramid = X264_B_PYRAMID_STRICT;
910 } else if ( !strcmp( psz_val, "normal" ) )
912 p_sys->param.i_bframe_pyramid = X264_B_PYRAMID_NORMAL;
917 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "ref" );
918 if( i_val > 0 && i_val <= 15 && i_val != 3 )
919 p_sys->param.i_frame_reference = i_val;
921 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "scenecut" );
922 if( i_val >= -1 && i_val <= 100 && i_val != 40 )
923 p_sys->param.i_scenecut_threshold = i_val;
925 p_sys->param.b_deterministic = var_GetBool( p_enc,
926 SOUT_CFG_PREFIX "non-deterministic" );
928 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "subme" );
929 if( i_val >= 1 && i_val != 7 )
930 p_sys->param.analyse.i_subpel_refine = i_val;
933 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "hrd");
934 if( !strcmp( psz_val, "vbr" ) )
935 p_sys->param.i_nal_hrd = X264_NAL_HRD_VBR;
936 else if( !strcmp( psz_val, "cbr" ) )
937 p_sys->param.i_nal_hrd = X264_NAL_HRD_CBR;
941 //TODO: psz_val == NULL ?
942 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "me" );
943 if( psz_val && strcmp( psz_val, "hex" ) )
945 if( !strcmp( psz_val, "dia" ) )
947 p_sys->param.analyse.i_me_method = X264_ME_DIA;
949 else if( !strcmp( psz_val, "umh" ) )
951 p_sys->param.analyse.i_me_method = X264_ME_UMH;
953 else if( !strcmp( psz_val, "esa" ) )
955 p_sys->param.analyse.i_me_method = X264_ME_ESA;
957 else if( !strcmp( psz_val, "tesa" ) )
959 p_sys->param.analyse.i_me_method = X264_ME_TESA;
964 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "merange" );
965 if( i_val >= 0 && i_val <= 64 && i_val != 16 )
966 p_sys->param.analyse.i_me_range = i_val;
968 p_sys->param.analyse.i_mv_range = var_GetInteger( p_enc,
969 SOUT_CFG_PREFIX "mvrange" );
970 p_sys->param.analyse.i_mv_range_thread = var_GetInteger( p_enc,
971 SOUT_CFG_PREFIX "mvrange-thread" );
973 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "direct" );
974 if( !strcmp( psz_val, "none" ) )
976 p_sys->param.analyse.i_direct_mv_pred = X264_DIRECT_PRED_NONE;
978 else if( !strcmp( psz_val, "spatial" ) )
980 p_sys->param.analyse.i_direct_mv_pred = X264_DIRECT_PRED_SPATIAL;
982 else if( !strcmp( psz_val, "temporal" ) )
984 p_sys->param.analyse.i_direct_mv_pred = X264_DIRECT_PRED_TEMPORAL;
986 else if( !strcmp( psz_val, "auto" ) )
988 p_sys->param.analyse.i_direct_mv_pred = X264_DIRECT_PRED_AUTO;
992 p_sys->param.analyse.b_psnr = var_GetBool( p_enc, SOUT_CFG_PREFIX "psnr" );
993 p_sys->param.analyse.b_ssim = var_GetBool( p_enc, SOUT_CFG_PREFIX "ssim" );
994 if( !var_GetBool( p_enc, SOUT_CFG_PREFIX "weightb" ) )
995 p_sys->param.analyse.b_weighted_bipred = var_GetBool( p_enc,
996 SOUT_CFG_PREFIX "weightb" );
997 if( var_GetInteger( p_enc, SOUT_CFG_PREFIX "weightp" ) != 2 )
998 p_sys->param.analyse.i_weighted_pred = var_GetInteger( p_enc, SOUT_CFG_PREFIX "weightp" );
1000 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "b-adapt" );
1002 p_sys->param.i_bframe_adaptive = i_val;
1004 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "b-bias" );
1005 if( i_val >= -100 && i_val <= 100 && i_val != 0)
1006 p_sys->param.i_bframe_bias = i_val;
1008 p_sys->param.analyse.b_chroma_me = var_GetBool( p_enc,
1009 SOUT_CFG_PREFIX "chroma-me" );
1010 p_sys->param.analyse.i_chroma_qp_offset = var_GetInteger( p_enc,
1011 SOUT_CFG_PREFIX "chroma-qp-offset" );
1012 if( !var_GetBool( p_enc, SOUT_CFG_PREFIX "mixed-refs" ) )
1013 p_sys->param.analyse.b_mixed_references = var_GetBool( p_enc,
1014 SOUT_CFG_PREFIX "mixed-refs" );
1016 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "trellis" );
1017 if( i_val >= 0 && i_val <= 2 && i_val != 1 )
1018 p_sys->param.analyse.i_trellis = i_val;
1020 if( !var_GetBool( p_enc, SOUT_CFG_PREFIX "fast-pskip" ) )
1021 p_sys->param.analyse.b_fast_pskip = var_GetBool( p_enc,
1022 SOUT_CFG_PREFIX "fast-pskip" );
1024 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "nr" );
1025 if( i_val > 0 && i_val <= 1000 )
1026 p_sys->param.analyse.i_noise_reduction = i_val;
1028 if( !var_GetBool( p_enc, SOUT_CFG_PREFIX "dct-decimate" ) )
1029 p_sys->param.analyse.b_dct_decimate = var_GetBool( p_enc,
1030 SOUT_CFG_PREFIX "dct-decimate" );
1032 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "deadzone-inter" );
1033 if( i_val >= 0 && i_val <= 32 && i_val != 21 )
1034 p_sys->param.analyse.i_luma_deadzone[0] = i_val;
1036 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "deadzone-intra" );
1037 if( i_val >= 0 && i_val <= 32 && i_val != 11)
1038 p_sys->param.analyse.i_luma_deadzone[1] = i_val;
1040 if( !var_GetBool( p_enc, SOUT_CFG_PREFIX "asm" ) )
1041 p_sys->param.cpu = 0;
1043 #ifndef X264_ANALYSE_BSUB16x16
1044 # define X264_ANALYSE_BSUB16x16 0
1046 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "partitions" );
1047 if( !strcmp( psz_val, "none" ) )
1049 p_sys->param.analyse.inter = 0;
1051 else if( !strcmp( psz_val, "fast" ) )
1053 p_sys->param.analyse.inter = X264_ANALYSE_I4x4;
1055 else if( !strcmp( psz_val, "normal" ) )
1057 p_sys->param.analyse.inter =
1059 X264_ANALYSE_PSUB16x16;
1060 #ifdef X264_ANALYSE_I8x8
1061 p_sys->param.analyse.inter |= X264_ANALYSE_I8x8;
1064 else if( !strcmp( psz_val, "slow" ) )
1066 p_sys->param.analyse.inter =
1068 X264_ANALYSE_PSUB16x16 |
1069 X264_ANALYSE_BSUB16x16;
1070 #ifdef X264_ANALYSE_I8x8
1071 p_sys->param.analyse.inter |= X264_ANALYSE_I8x8;
1074 else if( !strcmp( psz_val, "all" ) )
1076 p_sys->param.analyse.inter = ~0;
1080 if( var_GetBool( p_enc, SOUT_CFG_PREFIX "8x8dct" ) )
1081 p_sys->param.analyse.b_transform_8x8 = var_GetBool( p_enc,
1082 SOUT_CFG_PREFIX "8x8dct" );
1084 if( p_enc->fmt_in.video.i_sar_num > 0 &&
1085 p_enc->fmt_in.video.i_sar_den > 0 )
1087 unsigned int i_dst_num, i_dst_den;
1088 vlc_ureduce( &i_dst_num, &i_dst_den,
1089 p_enc->fmt_in.video.i_sar_num,
1090 p_enc->fmt_in.video.i_sar_den, 0 );
1091 p_sys->param.vui.i_sar_width = i_dst_num;
1092 p_sys->param.vui.i_sar_height = i_dst_den;
1095 if( p_enc->fmt_in.video.i_frame_rate_base > 0 )
1097 p_sys->param.i_fps_num = p_enc->fmt_in.video.i_frame_rate;
1098 p_sys->param.i_fps_den = p_enc->fmt_in.video.i_frame_rate_base;
1099 p_sys->param.b_vfr_input = 0;
1102 /* Check slice-options */
1103 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "slices" );
1105 p_sys->param.i_slice_count = i_val;
1106 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "slice-max-size" );
1108 p_sys->param.i_slice_max_size = i_val;
1109 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "slice-max-mbs" );
1111 p_sys->param.i_slice_max_mbs = i_val;
1114 /* x264 vbv-bufsize = 0 (default). if not provided set period
1115 in seconds for local maximum bitrate (cache/bufsize) based
1116 on average bitrate when use has told bitrate.
1117 vbv-buffer size is set to bitrate * secods between keyframes */
1118 if( !p_sys->param.rc.i_vbv_buffer_size &&
1119 p_sys->param.rc.i_rc_method == X264_RC_ABR &&
1120 p_sys->param.i_fps_num )
1122 p_sys->param.rc.i_vbv_buffer_size = p_sys->param.rc.i_bitrate *
1123 p_sys->param.i_fps_den;
1124 p_sys->param.rc.i_vbv_buffer_size *= p_sys->param.i_keyint_max;
1125 p_sys->param.rc.i_vbv_buffer_size /= p_sys->param.i_fps_num;
1128 /* Check if user has given some profile (baseline,main,high) to limit
1129 * settings, and apply those*/
1130 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "profile" );
1133 if( !strcasecmp( psz_val, "baseline" ) )
1135 msg_Dbg( p_enc, "Limiting to baseline profile");
1136 p_sys->param.analyse.b_transform_8x8 = 0;
1137 p_sys->param.b_cabac = 0;
1138 p_sys->param.i_bframe = 0;
1139 p_sys->param.analyse.i_weighted_pred = X264_WEIGHTP_NONE;
1141 else if (!strcasecmp( psz_val, "main" ) )
1143 msg_Dbg( p_enc, "Limiting to main-profile");
1144 p_sys->param.analyse.b_transform_8x8 = 0;
1146 /* high profile don't restrict stuff*/
1151 unsigned i_cpu = vlc_CPU();
1152 if( !(i_cpu & CPU_CAPABILITY_MMX) )
1154 p_sys->param.cpu &= ~X264_CPU_MMX;
1156 if( !(i_cpu & CPU_CAPABILITY_MMXEXT) )
1158 p_sys->param.cpu &= ~X264_CPU_MMXEXT;
1160 if( !(i_cpu & CPU_CAPABILITY_SSE) )
1162 p_sys->param.cpu &= ~X264_CPU_SSE;
1164 if( !(i_cpu & CPU_CAPABILITY_SSE2) )
1166 p_sys->param.cpu &= ~X264_CPU_SSE2;
1169 /* BUILD 29 adds support for multi-threaded encoding while BUILD 49 (r543)
1170 also adds support for threads = 0 for automatically selecting an optimal
1171 value (cores * 1.5) based on detected CPUs. Default behavior for x264 is
1172 threads = 1, however VLC usage differs and uses threads = 0 (auto) by
1173 default unless ofcourse transcode threads is explicitly specified.. */
1174 p_sys->param.i_threads = p_enc->i_threads;
1176 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "stats" );
1179 p_sys->param.rc.psz_stat_in =
1180 p_sys->param.rc.psz_stat_out =
1181 p_sys->psz_stat_name = psz_val;
1184 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "pass" );
1185 if( i_val > 0 && i_val <= 3 )
1187 p_sys->param.rc.b_stat_write = i_val & 1;
1188 p_sys->param.rc.b_stat_read = i_val & 2;
1191 if( !var_GetBool( p_enc, SOUT_CFG_PREFIX "mbtree" ) )
1192 p_sys->param.rc.b_mb_tree = var_GetBool( p_enc, SOUT_CFG_PREFIX "mbtree" );
1194 /* We need to initialize pthreadw32 before we open the encoder,
1195 but only once for the whole application. Since pthreadw32
1196 doesn't keep a refcount, do it ourselves. */
1197 #ifdef PTW32_STATIC_LIB
1198 vlc_mutex_lock( &pthread_win32_mutex );
1200 if( pthread_win32_count == 0 )
1202 msg_Dbg( p_enc, "initializing pthread-win32" );
1203 if( !pthread_win32_process_attach_np() || !pthread_win32_thread_attach_np() )
1205 msg_Warn( p_enc, "pthread Win32 Initialization failed" );
1206 vlc_mutex_unlock( &pthread_win32_mutex );
1207 return VLC_EGENERIC;
1211 pthread_win32_count++;
1212 vlc_mutex_unlock( &pthread_win32_mutex );
1215 /* Set lookahead value to lower than default,
1216 * as rtp-output without mux doesn't handle
1217 * difference that well yet*/
1218 p_sys->param.rc.i_lookahead= var_GetInteger( p_enc, SOUT_CFG_PREFIX "lookahead" );
1220 /* Open the encoder */
1221 p_sys->h = x264_encoder_open( &p_sys->param );
1223 if( p_sys->h == NULL )
1225 msg_Err( p_enc, "cannot open x264 encoder" );
1226 Close( VLC_OBJECT(p_enc) );
1227 return VLC_EGENERIC;
1230 /* get the globals headers */
1231 p_enc->fmt_out.i_extra = 0;
1232 p_enc->fmt_out.p_extra = NULL;
1234 p_enc->fmt_out.i_extra = x264_encoder_headers( p_sys->h, &nal, &i_nal );
1235 p_enc->fmt_out.p_extra = malloc( p_enc->fmt_out.i_extra );
1236 if( !p_enc->fmt_out.p_extra )
1238 Close( VLC_OBJECT(p_enc) );
1241 uint8_t *p_tmp = p_enc->fmt_out.p_extra;
1242 for( i = 0; i < i_nal; i++ )
1244 memcpy( p_tmp, nal[i].p_payload, nal[i].i_payload );
1245 p_tmp += nal[i].i_payload;
1251 /****************************************************************************
1253 ****************************************************************************/
1254 static block_t *Encode( encoder_t *p_enc, picture_t *p_pict )
1256 encoder_sys_t *p_sys = p_enc->p_sys;
1260 int i_nal=0, i_out=0, i=0;
1263 memset( &pic, 0, sizeof( x264_picture_t ) );
1264 if( likely(p_pict) ) {
1265 pic.i_pts = p_pict->date;
1266 pic.img.i_csp = X264_CSP_I420;
1267 pic.img.i_plane = p_pict->i_planes;
1268 for( i = 0; i < p_pict->i_planes; i++ )
1270 pic.img.plane[i] = p_pict->p[i].p_pixels;
1271 pic.img.i_stride[i] = p_pict->p[i].i_pitch;
1274 x264_encoder_encode( p_sys->h, &nal, &i_nal, &pic, &pic );
1276 if( x264_encoder_delayed_frames( p_sys->h ) ) {
1277 x264_encoder_encode( p_sys->h, &nal, &i_nal, NULL, &pic );
1281 if( !i_nal ) return NULL;
1284 /* Get size of block we need */
1285 for( i = 0, i_out = 0; i < i_nal; i++ )
1286 i_out += nal[i].i_payload;
1288 p_block = block_New( p_enc, i_out );
1289 if( !p_block ) return NULL;
1291 /* copy encoded data directly to block */
1292 for( i = 0, i_out = 0; i < i_nal; i++ )
1294 memcpy( p_block->p_buffer + i_out, nal[i].p_payload, nal[i].i_payload );
1295 i_out += nal[i].i_payload;
1298 if( pic.b_keyframe )
1299 p_block->i_flags |= BLOCK_FLAG_TYPE_I;
1300 else if( pic.i_type == X264_TYPE_P || pic.i_type == X264_TYPE_I )
1301 p_block->i_flags |= BLOCK_FLAG_TYPE_P;
1302 else if( pic.i_type == X264_TYPE_B )
1303 p_block->i_flags |= BLOCK_FLAG_TYPE_B;
1305 p_block->i_flags |= BLOCK_FLAG_TYPE_PB;
1307 /* This isn't really valid for streams with B-frames */
1308 p_block->i_length = INT64_C(1000000) *
1309 p_enc->fmt_in.video.i_frame_rate_base /
1310 p_enc->fmt_in.video.i_frame_rate;
1312 /* libx264 gives pts/dts values from >= 83 onward,
1313 * also pts starts from 0 so dts can be negative,
1314 * but vlc doesn't handle if dts is < VLC_TS_0 so we
1315 * use that offset to get it right for vlc.
1317 if( p_sys->i_initial_delay == 0 && pic.i_dts < VLC_TS_0 )
1319 p_sys->i_initial_delay = -1* pic.i_dts;
1320 msg_Dbg( p_enc, "Initial delay is set to %d", p_sys->i_initial_delay );
1322 p_block->i_pts = pic.i_pts + p_sys->i_initial_delay;
1323 p_block->i_dts = pic.i_dts + p_sys->i_initial_delay;
1328 /*****************************************************************************
1329 * CloseEncoder: x264 encoder destruction
1330 *****************************************************************************/
1331 static void Close( vlc_object_t *p_this )
1333 encoder_t *p_enc = (encoder_t *)p_this;
1334 encoder_sys_t *p_sys = p_enc->p_sys;
1336 free( p_sys->psz_stat_name );
1338 msg_Dbg( p_enc, "framecount still in libx264 buffer: %d", x264_encoder_delayed_frames( p_sys->h ) );
1341 x264_encoder_close( p_sys->h );
1343 #ifdef PTW32_STATIC_LIB
1344 vlc_mutex_lock( &pthread_win32_mutex );
1345 pthread_win32_count--;
1347 if( pthread_win32_count == 0 )
1349 pthread_win32_thread_detach_np();
1350 pthread_win32_process_detach_np();
1351 msg_Dbg( p_enc, "pthread-win32 deinitialized" );
1354 vlc_mutex_unlock( &pthread_win32_mutex );