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." )
94 #define BPYRAMID_TEXT N_("Keep some B-frames as references")
95 #define BPYRAMID_LONGTEXT N_( "Allows B-frames to be used as references for " \
96 "predicting other frames. Keeps the middle of 2+ consecutive B-frames " \
97 "as a reference, and reorders frame appropriately." )
99 #define CABAC_TEXT N_("CABAC")
100 #define CABAC_LONGTEXT N_( "CABAC (Context-Adaptive Binary Arithmetic "\
101 "Coding). Slightly slows down encoding and decoding, but should save " \
102 "10 to 15% bitrate." )
104 #define REF_TEXT N_("Number of reference frames")
105 #define REF_LONGTEXT N_( "Number of previous frames used as predictors. " \
106 "This is effective in Anime, but seems to make little difference in " \
107 "live-action source material. Some decoders are unable to deal with " \
108 "large frameref values. Range 1 to 16." )
110 #define NF_TEXT N_("Skip loop filter")
111 #define NF_LONGTEXT N_( "Deactivate the deblocking loop filter (decreases quality).")
113 #define FILTER_TEXT N_("Loop filter AlphaC0 and Beta parameters alpha:beta")
114 #define FILTER_LONGTEXT N_( "Loop filter AlphaC0 and Beta parameters. " \
115 "Range -6 to 6 for both alpha and beta parameters. -6 means light " \
116 "filter, 6 means strong.")
118 #define LEVEL_TEXT N_("H.264 level")
119 #define LEVEL_LONGTEXT N_( "Specify H.264 level (as defined by Annex A " \
120 "of the standard). Levels are not enforced; it's up to the user to select " \
121 "a level compatible with the rest of the encoding options. Range 1 to 5.1 " \
122 "(10 to 51 is also allowed).")
124 #define PROFILE_TEXT N_("H.264 profile")
125 #define PROFILE_LONGTEXT N_("Specify H.264 profile which limits are enforced over" \
128 /* In order to play an interlaced output stream encoded by x264, a decoder needs
129 mbaff support. r570 is using the 'mb' part and not 'aff' yet; so it's really
130 'pure-interlaced' mode */
131 #define INTERLACED_TEXT N_("Interlaced mode")
132 #define INTERLACED_LONGTEXT N_( "Pure-interlaced mode.")
136 #define QP_TEXT N_("Set QP")
137 #define QP_LONGTEXT N_( "This selects the quantizer to use. " \
138 "Lower values result in better fidelity, but higher bitrates. 26 is a " \
139 "good default value. Range 0 (lossless) to 51." )
141 #define CRF_TEXT N_("Quality-based VBR")
142 #define CRF_LONGTEXT N_( "1-pass Quality-based VBR. Range 0 to 51." )
144 #define QPMIN_TEXT N_("Min QP")
145 #define QPMIN_LONGTEXT N_( "Minimum quantizer parameter. 15 to 35 seems to " \
146 "be a useful range." )
148 #define QPMAX_TEXT N_("Max QP")
149 #define QPMAX_LONGTEXT N_( "Maximum quantizer parameter." )
151 #define QPSTEP_TEXT N_("Max QP step")
152 #define QPSTEP_LONGTEXT N_( "Max QP step between frames.")
154 #define RATETOL_TEXT N_("Average bitrate tolerance")
155 #define RATETOL_LONGTEXT N_( "Allowed variance in average " \
156 "bitrate (in kbits/s).")
158 #define VBV_MAXRATE_TEXT N_("Max local bitrate")
159 #define VBV_MAXRATE_LONGTEXT N_( "Sets a maximum local bitrate (in kbits/s).")
161 #define VBV_BUFSIZE_TEXT N_("VBV buffer")
162 #define VBV_BUFSIZE_LONGTEXT N_( "Averaging period for the maximum " \
163 "local bitrate (in kbits).")
165 #define VBV_INIT_TEXT N_("Initial VBV buffer occupancy")
166 #define VBV_INIT_LONGTEXT N_( "Sets the initial buffer occupancy as a " \
167 "fraction of the buffer size. Range 0.0 to 1.0.")
169 #define AQ_MODE_TEXT N_("How AQ distributes bits")
170 #define AQ_MODE_LONGTEXT N_("Defines bitdistribution mode for AQ, default 1\n" \
172 " - 1: Current x264 default mode\n"\
173 " - 2: uses log(var)^2 instead of log(var) and attempts to adapt strength per frame")
175 #define AQ_STRENGTH_TEXT N_("Strength of AQ")
176 #define AQ_STRENGTH_LONGTEXT N_("Strength to reduce blocking and blurring in flat\n"\
177 "and textured areas, default 1.0 recommented to be between 0..2\n"\
181 /* IP Ratio < 1 is technically valid but should never improve quality */
182 #define IPRATIO_TEXT N_("QP factor between I and P")
183 #define IPRATIO_LONGTEXT N_( "QP factor between I and P. Range 1.0 to 2.0.")
185 /* PB ratio < 1 is not valid and breaks ratecontrol */
186 #define PBRATIO_TEXT N_("QP factor between P and B")
187 #define PBRATIO_LONGTEXT N_( "QP factor between P and B. Range 1.0 to 2.0.")
189 #define CHROMA_QP_OFFSET_TEXT N_("QP difference between chroma and luma")
190 #define CHROMA_QP_OFFSET_LONGTEXT N_( "QP difference between chroma and luma.")
192 #define PASS_TEXT N_("Multipass ratecontrol")
193 #define PASS_LONGTEXT N_( "Multipass ratecontrol:\n" \
194 " - 1: First pass, creates stats file\n" \
195 " - 2: Last pass, does not overwrite stats file\n" \
196 " - 3: Nth pass, overwrites stats file\n" )
198 #define QCOMP_TEXT N_("QP curve compression")
199 #define QCOMP_LONGTEXT N_( "QP curve compression. Range 0.0 (CBR) to 1.0 (QCP).")
201 #define CPLXBLUR_TEXT N_("Reduce fluctuations in QP")
202 #define CPLXBLUR_LONGTEXT N_( "This reduces the fluctuations in QP " \
203 "before curve compression. Temporally blurs complexity.")
205 #define QBLUR_TEXT N_("Reduce fluctuations in QP")
206 #define QBLUR_LONGTEXT N_( "This reduces the fluctations in QP " \
207 "after curve compression. Temporally blurs quants.")
211 #define ANALYSE_TEXT N_("Partitions to consider")
212 #define ANALYSE_LONGTEXT N_( "Partitions to consider in analyse mode: \n" \
215 " - normal: i4x4,p8x8,(i8x8)\n" \
216 " - slow : i4x4,p8x8,(i8x8),b8x8\n" \
217 " - all : i4x4,p8x8,(i8x8),b8x8,p4x4\n" \
218 "(p4x4 requires p8x8. i8x8 requires 8x8dct).")
220 #define DIRECT_PRED_TEXT N_("Direct MV prediction mode")
221 #define DIRECT_PRED_LONGTEXT N_( "Direct MV prediction mode.")
223 #define DIRECT_PRED_SIZE_TEXT N_("Direct prediction size")
224 #define DIRECT_PRED_SIZE_LONGTEXT N_( "Direct prediction size: "\
227 " - -1: smallest possible according to level\n" )
229 #define WEIGHTB_TEXT N_("Weighted prediction for B-frames")
230 #define WEIGHTB_LONGTEXT N_( "Weighted prediction for B-frames.")
232 #define ME_TEXT N_("Integer pixel motion estimation method")
233 #define ME_LONGTEXT N_( "Selects the motion estimation algorithm: "\
234 " - dia: diamond search, radius 1 (fast)\n" \
235 " - hex: hexagonal search, radius 2\n" \
236 " - umh: uneven multi-hexagon search (better but slower)\n" \
237 " - esa: exhaustive search (extremely slow, primarily for testing)\n" \
238 " - tesa: hadamard exhaustive search (extremely slow, primarily for testing)\n" )
240 #define MERANGE_TEXT N_("Maximum motion vector search range")
241 #define MERANGE_LONGTEXT N_( "Maximum distance to search for " \
242 "motion estimation, measured from predicted position(s). " \
243 "Default of 16 is good for most footage, high motion sequences may " \
244 "benefit from settings between 24 and 32. Range 0 to 64." )
246 #define MVRANGE_TEXT N_("Maximum motion vector length")
247 #define MVRANGE_LONGTEXT N_( "Maximum motion vector length in pixels. " \
248 "-1 is automatic, based on level." )
250 #define MVRANGE_THREAD_TEXT N_("Minimum buffer space between threads")
251 #define MVRANGE_THREAD_LONGTEXT N_( "Minimum buffer space between threads. " \
252 "-1 is automatic, based on number of threads." )
254 #define PSY_RD_TEXT N_( "Strength of psychovisual optimization, default is \"1.0:0.0\"")
255 #define PSY_RD_LONGTEXT N_( "First parameter controls if RD is on (subme>=6) or off"\
256 "second parameter controls if Trellis is used on psychovisual optimization," \
259 #define SUBME_TEXT N_("Subpixel motion estimation and partition decision " \
263 #define SUBME_LONGTEXT N_( "This parameter controls quality versus speed " \
264 "tradeoffs involved in the motion estimation decision process " \
265 "(lower = quicker and higher = better quality). Range 1 to 9." )
267 #define B_RDO_TEXT N_("RD based mode decision for B-frames")
268 #define B_RDO_LONGTEXT N_( "RD based mode decision for B-frames. This " \
269 "requires subme 6 (or higher).")
271 #define MIXED_REFS_TEXT N_("Decide references on a per partition basis")
272 #define MIXED_REFS_LONGTEXT N_( "Allows each 8x8 or 16x8 partition to " \
273 "independently select a reference frame, as opposed to only one ref " \
276 #define CHROMA_ME_TEXT N_("Chroma in motion estimation")
277 #define CHROMA_ME_LONGTEXT N_( "Chroma ME for subpel and mode decision in " \
280 #define BIME_TEXT N_("Jointly optimize both MVs in B-frames")
281 #define BIME_LONGTEXT N_( "Joint bidirectional motion refinement.")
283 #define TRANSFORM_8X8DCT_TEXT N_("Adaptive spatial transform size")
284 #define TRANSFORM_8X8DCT_LONGTEXT N_( \
285 "SATD-based decision for 8x8 transform in inter-MBs.")
287 #define TRELLIS_TEXT N_("Trellis RD quantization" )
288 #define TRELLIS_LONGTEXT N_( "Trellis RD quantization: \n" \
290 " - 1: enabled only on the final encode of a MB\n" \
291 " - 2: enabled on all mode decisions\n" \
292 "This requires CABAC." )
294 #define FAST_PSKIP_TEXT N_("Early SKIP detection on P-frames")
295 #define FAST_PSKIP_LONGTEXT N_( "Early SKIP detection on P-frames.")
297 #define DCT_DECIMATE_TEXT N_("Coefficient thresholding on P-frames")
298 #define DCT_DECIMATE_LONGTEXT N_( "Coefficient thresholding on P-frames." \
299 "Eliminate dct blocks containing only a small single coefficient.")
301 /* Noise reduction 1 is too weak to measure, suggest at least 10 */
302 #define NR_TEXT N_("Noise reduction")
303 #define NR_LONGTEXT N_( "Dct-domain noise reduction. Adaptive pseudo-deadzone. " \
304 "10 to 1000 seems to be a useful range." )
306 #define DEADZONE_INTER_TEXT N_("Inter luma quantization deadzone")
307 #define DEADZONE_INTER_LONGTEXT N_( "Set the size of the inter luma quantization deadzone. " \
310 #define DEADZONE_INTRA_TEXT N_("Intra luma quantization deadzone")
311 #define DEADZONE_INTRA_LONGTEXT N_( "Set the size of the intra luma quantization deadzone. " \
316 #define NON_DETERMINISTIC_TEXT N_("Non-deterministic optimizations when threaded")
317 #define NON_DETERMINISTIC_LONGTEXT N_( "Slightly improve quality of SMP, " \
318 "at the cost of repeatability.")
320 #define ASM_TEXT N_("CPU optimizations")
321 #define ASM_LONGTEXT N_( "Use assembler CPU optimizations.")
323 #define STATS_TEXT N_("Filename for 2 pass stats file")
324 #define STATS_LONGTEXT N_( "Filename for 2 pass stats file for multi-pass encoding.")
326 #define PSNR_TEXT N_("PSNR computation")
327 #define PSNR_LONGTEXT N_( "Compute and print PSNR stats. This has no effect on " \
328 "the actual encoding quality." )
330 #define SSIM_TEXT N_("SSIM computation")
331 #define SSIM_LONGTEXT N_( "Compute and print SSIM stats. This has no effect on " \
332 "the actual encoding quality." )
334 #define QUIET_TEXT N_("Quiet mode")
335 #define QUIET_LONGTEXT N_( "Quiet mode.")
337 #define VERBOSE_TEXT N_("Statistics")
338 #define VERBOSE_LONGTEXT N_( "Print stats for each frame.")
340 #define SPS_ID_TEXT N_("SPS and PPS id numbers")
341 #define SPS_ID_LONGTEXT N_( "Set SPS and PPS id numbers to allow concatenating " \
342 "streams with different settings.")
344 #define AUD_TEXT N_("Access unit delimiters")
345 #define AUD_LONGTEXT N_( "Generate access unit delimiter NAL units.")
347 static const char *const enc_me_list[] =
348 { "dia", "hex", "umh", "esa", "tesa" };
349 static const char *const enc_me_list_text[] =
350 { N_("dia"), N_("hex"), N_("umh"), N_("esa"), N_("tesa") };
352 static const char *const profile_list[] =
353 { "baseline", "main", "high" };
355 static const char *const enc_analyse_list[] =
356 { "none", "fast", "normal", "slow", "all" };
357 static const char *const enc_analyse_list_text[] =
358 { N_("none"), N_("fast"), N_("normal"), N_("slow"), N_("all") };
360 static const char *const direct_pred_list[] =
361 { "none", "spatial", "temporal", "auto" };
362 static const char *const direct_pred_list_text[] =
363 { N_("none"), N_("spatial"), N_("temporal"), N_("auto") };
366 set_description( N_("H.264/MPEG4 AVC encoder (x264)"))
367 set_capability( "encoder", 200 )
368 set_callbacks( Open, Close )
369 set_category( CAT_INPUT )
370 set_subcategory( SUBCAT_INPUT_VCODEC )
372 /* Frame-type options */
374 add_integer( SOUT_CFG_PREFIX "keyint", 250, NULL, KEYINT_TEXT,
375 KEYINT_LONGTEXT, false )
377 add_integer( SOUT_CFG_PREFIX "min-keyint", 25, NULL, MIN_KEYINT_TEXT,
378 MIN_KEYINT_LONGTEXT, false )
379 add_deprecated_alias( SOUT_CFG_PREFIX "keyint-min" ) /* Deprecated since 0.8.5 */
381 add_integer( SOUT_CFG_PREFIX "scenecut", 40, NULL, SCENE_TEXT,
382 SCENE_LONGTEXT, false )
383 change_integer_range( -1, 100 )
385 add_obsolete_bool( SOUT_CFG_PREFIX "pre-scenecut" )
387 add_integer( SOUT_CFG_PREFIX "bframes", 3, NULL, BFRAMES_TEXT,
388 BFRAMES_LONGTEXT, false )
389 change_integer_range( 0, 16 )
391 add_integer( SOUT_CFG_PREFIX "b-adapt", 1, NULL, B_ADAPT_TEXT,
392 B_ADAPT_LONGTEXT, false )
393 change_integer_range( 0, 2 )
395 add_integer( SOUT_CFG_PREFIX "b-bias", 0, NULL, B_BIAS_TEXT,
396 B_BIAS_LONGTEXT, false )
397 change_integer_range( -100, 100 )
399 add_bool( SOUT_CFG_PREFIX "bpyramid", false, NULL, BPYRAMID_TEXT,
400 BPYRAMID_LONGTEXT, false )
402 add_bool( SOUT_CFG_PREFIX "cabac", true, NULL, CABAC_TEXT, CABAC_LONGTEXT,
405 add_integer( SOUT_CFG_PREFIX "ref", 3, NULL, REF_TEXT,
406 REF_LONGTEXT, false )
407 change_integer_range( 1, 16 )
408 add_deprecated_alias( SOUT_CFG_PREFIX "frameref" ) /* Deprecated since 0.8.5 */
410 add_bool( SOUT_CFG_PREFIX "nf", false, NULL, NF_TEXT,
412 add_deprecated_alias( SOUT_CFG_PREFIX "loopfilter" ) /* Deprecated since 0.8.5 */
414 add_string( SOUT_CFG_PREFIX "deblock", "0:0", NULL, FILTER_TEXT,
415 FILTER_LONGTEXT, false )
416 add_deprecated_alias( SOUT_CFG_PREFIX "filter" ) /* Deprecated since 0.8.6 */
418 add_string( SOUT_CFG_PREFIX "psy-rd", "1.0:0.0", NULL, PSY_RD_TEXT,
419 PSY_RD_LONGTEXT, false )
421 add_string( SOUT_CFG_PREFIX "level", "5.1", NULL, LEVEL_TEXT,
422 LEVEL_LONGTEXT, false )
424 add_string( SOUT_CFG_PREFIX "profile", "high", NULL, PROFILE_TEXT,
425 PROFILE_LONGTEXT, false )
426 change_string_list( profile_list, profile_list, 0 );
428 add_bool( SOUT_CFG_PREFIX "interlaced", false, NULL, INTERLACED_TEXT, INTERLACED_LONGTEXT,
433 add_integer( SOUT_CFG_PREFIX "qp", -1, NULL, QP_TEXT, QP_LONGTEXT,
435 change_integer_range( -1, 51 ) /* QP 0 -> lossless encoding */
437 add_integer( SOUT_CFG_PREFIX "crf", 23, NULL, CRF_TEXT,
438 CRF_LONGTEXT, false )
439 change_integer_range( 0, 51 )
441 add_integer( SOUT_CFG_PREFIX "qpmin", 10, NULL, QPMIN_TEXT,
442 QPMIN_LONGTEXT, false )
443 change_integer_range( 0, 51 )
444 add_deprecated_alias( SOUT_CFG_PREFIX "qp-min" ) /* Deprecated since 0.8.5 */
446 add_integer( SOUT_CFG_PREFIX "qpmax", 51, NULL, QPMAX_TEXT,
447 QPMAX_LONGTEXT, false )
448 change_integer_range( 0, 51 )
449 add_deprecated_alias( SOUT_CFG_PREFIX "qp-max" ) /* Deprecated since 0.8.5 */
451 add_integer( SOUT_CFG_PREFIX "qpstep", 4, NULL, QPSTEP_TEXT,
452 QPSTEP_LONGTEXT, false )
453 change_integer_range( 0, 51 )
455 add_float( SOUT_CFG_PREFIX "ratetol", 1.0, NULL, RATETOL_TEXT,
456 RATETOL_LONGTEXT, false )
457 change_float_range( 0, 100 )
458 add_deprecated_alias( SOUT_CFG_PREFIX "tolerance" ) /* Deprecated since 0.8.5 */
460 add_integer( SOUT_CFG_PREFIX "vbv-maxrate", 0, NULL, VBV_MAXRATE_TEXT,
461 VBV_MAXRATE_LONGTEXT, false )
463 add_integer( SOUT_CFG_PREFIX "vbv-bufsize", 0, NULL, VBV_BUFSIZE_TEXT,
464 VBV_BUFSIZE_LONGTEXT, false )
466 add_float( SOUT_CFG_PREFIX "vbv-init", 0.9, NULL, VBV_INIT_TEXT,
467 VBV_INIT_LONGTEXT, false )
468 change_float_range( 0, 1 )
470 add_float( SOUT_CFG_PREFIX "ipratio", 1.40, NULL, IPRATIO_TEXT,
471 IPRATIO_LONGTEXT, false )
472 change_float_range( 1, 2 )
474 add_float( SOUT_CFG_PREFIX "pbratio", 1.30, NULL, PBRATIO_TEXT,
475 PBRATIO_LONGTEXT, false )
476 change_float_range( 1, 2 )
478 add_integer( SOUT_CFG_PREFIX "chroma-qp-offset", 0, NULL, CHROMA_QP_OFFSET_TEXT,
479 CHROMA_QP_OFFSET_LONGTEXT, false )
481 add_integer( SOUT_CFG_PREFIX "pass", 0, NULL, PASS_TEXT,
482 PASS_LONGTEXT, false )
483 change_integer_range( 0, 3 )
485 add_float( SOUT_CFG_PREFIX "qcomp", 0.60, NULL, QCOMP_TEXT,
486 QCOMP_LONGTEXT, false )
487 change_float_range( 0, 1 )
489 add_float( SOUT_CFG_PREFIX "cplxblur", 20.0, NULL, CPLXBLUR_TEXT,
490 CPLXBLUR_LONGTEXT, false )
492 add_float( SOUT_CFG_PREFIX "qblur", 0.5, NULL, QBLUR_TEXT,
493 QBLUR_LONGTEXT, false )
495 add_integer( SOUT_CFG_PREFIX "aq-mode", X264_AQ_VARIANCE, NULL, AQ_MODE_TEXT,
496 AQ_MODE_LONGTEXT, false )
497 change_integer_range( 0, 2 )
498 add_float( SOUT_CFG_PREFIX "aq-strength", 1.0, NULL, AQ_STRENGTH_TEXT,
499 AQ_STRENGTH_LONGTEXT, false )
503 /* x264 partitions = none (default). set at least "normal" mode. */
504 add_string( SOUT_CFG_PREFIX "partitions", "normal", NULL, ANALYSE_TEXT,
505 ANALYSE_LONGTEXT, false )
506 change_string_list( enc_analyse_list, enc_analyse_list_text, 0 );
507 add_deprecated_alias( SOUT_CFG_PREFIX "analyse" ) /* Deprecated since 0.8.6 */
509 add_string( SOUT_CFG_PREFIX "direct", "spatial", NULL, DIRECT_PRED_TEXT,
510 DIRECT_PRED_LONGTEXT, false )
511 change_string_list( direct_pred_list, direct_pred_list_text, 0 );
513 add_integer( SOUT_CFG_PREFIX "direct-8x8", 1, NULL, DIRECT_PRED_SIZE_TEXT,
514 DIRECT_PRED_SIZE_LONGTEXT, false )
515 change_integer_range( -1, 1 )
517 add_bool( SOUT_CFG_PREFIX "weightb", true, NULL, WEIGHTB_TEXT,
518 WEIGHTB_LONGTEXT, false )
520 add_string( SOUT_CFG_PREFIX "me", "hex", NULL, ME_TEXT,
522 change_string_list( enc_me_list, enc_me_list_text, 0 );
524 add_integer( SOUT_CFG_PREFIX "merange", 16, NULL, MERANGE_TEXT,
525 MERANGE_LONGTEXT, false )
526 change_integer_range( 1, 64 )
528 add_integer( SOUT_CFG_PREFIX "mvrange", -1, NULL, MVRANGE_TEXT,
529 MVRANGE_LONGTEXT, false )
531 add_integer( SOUT_CFG_PREFIX "mvrange-thread", -1, NULL, MVRANGE_THREAD_TEXT,
532 MVRANGE_THREAD_LONGTEXT, false )
534 add_integer( SOUT_CFG_PREFIX "subme", 5, NULL, SUBME_TEXT,
535 SUBME_LONGTEXT, false )
536 change_integer_range( 1, SUBME_MAX )
537 add_deprecated_alias( SOUT_CFG_PREFIX "subpel" ) /* Deprecated since 0.8.5 */
539 add_obsolete_bool( SOUT_CFG_PREFIX "b-rdo" )
541 add_bool( SOUT_CFG_PREFIX "mixed-refs", true, NULL, MIXED_REFS_TEXT,
542 MIXED_REFS_LONGTEXT, false )
544 add_bool( SOUT_CFG_PREFIX "chroma-me", true, NULL, CHROMA_ME_TEXT,
545 CHROMA_ME_LONGTEXT, false )
547 add_obsolete_bool( SOUT_CFG_PREFIX "bime" )
549 add_bool( SOUT_CFG_PREFIX "8x8dct", false, NULL, TRANSFORM_8X8DCT_TEXT,
550 TRANSFORM_8X8DCT_LONGTEXT, false )
552 add_integer( SOUT_CFG_PREFIX "trellis", 1, NULL, TRELLIS_TEXT,
553 TRELLIS_LONGTEXT, false )
554 change_integer_range( 0, 2 )
556 add_bool( SOUT_CFG_PREFIX "fast-pskip", true, NULL, FAST_PSKIP_TEXT,
557 FAST_PSKIP_LONGTEXT, false )
559 add_bool( SOUT_CFG_PREFIX "dct-decimate", true, NULL, DCT_DECIMATE_TEXT,
560 DCT_DECIMATE_LONGTEXT, false )
562 add_integer( SOUT_CFG_PREFIX "nr", 0, NULL, NR_TEXT,
564 change_integer_range( 0, 1000 )
566 add_integer( SOUT_CFG_PREFIX "deadzone-inter", 21, NULL, DEADZONE_INTER_TEXT,
567 DEADZONE_INTRA_LONGTEXT, false )
568 change_integer_range( 0, 32 )
570 add_integer( SOUT_CFG_PREFIX "deadzone-intra", 11, NULL, DEADZONE_INTRA_TEXT,
571 DEADZONE_INTRA_LONGTEXT, false )
572 change_integer_range( 0, 32 )
576 add_bool( SOUT_CFG_PREFIX "non-deterministic", false, NULL, NON_DETERMINISTIC_TEXT,
577 NON_DETERMINISTIC_LONGTEXT, false )
579 add_bool( SOUT_CFG_PREFIX "asm", true, NULL, ASM_TEXT,
580 ASM_LONGTEXT, false )
582 /* x264 psnr = 1 (default). disable PSNR computation for speed. */
583 add_bool( SOUT_CFG_PREFIX "psnr", false, NULL, PSNR_TEXT,
584 PSNR_LONGTEXT, false )
586 /* x264 ssim = 1 (default). disable SSIM computation for speed. */
587 add_bool( SOUT_CFG_PREFIX "ssim", false, NULL, SSIM_TEXT,
588 SSIM_LONGTEXT, false )
590 add_bool( SOUT_CFG_PREFIX "quiet", false, NULL, QUIET_TEXT,
591 QUIET_LONGTEXT, false )
593 add_integer( SOUT_CFG_PREFIX "sps-id", 0, NULL, SPS_ID_TEXT,
594 SPS_ID_LONGTEXT, false )
596 add_bool( SOUT_CFG_PREFIX "aud", false, NULL, AUD_TEXT,
597 AUD_LONGTEXT, false )
599 add_bool( SOUT_CFG_PREFIX "verbose", false, NULL, VERBOSE_TEXT,
600 VERBOSE_LONGTEXT, false )
602 add_string( SOUT_CFG_PREFIX "stats", "x264_2pass.log", NULL, STATS_TEXT,
603 STATS_LONGTEXT, false )
607 /*****************************************************************************
609 *****************************************************************************/
610 static const char *const ppsz_sout_options[] = {
611 "8x8dct", "analyse", "asm", "aud", "bframes", "bime", "bpyramid",
612 "b-adapt", "b-bias", "b-rdo", "cabac", "chroma-me", "chroma-qp-offset",
613 "cplxblur", "crf", "dct-decimate", "deadzone-inter", "deadzone-intra",
614 "deblock", "direct", "direct-8x8", "filter", "fast-pskip", "frameref",
615 "interlaced", "ipratio", "keyint", "keyint-min", "level", "loopfilter",
616 "me", "merange", "min-keyint", "mixed-refs", "mvrange", "mvrange-thread",
617 "nf", "non-deterministic", "nr", "partitions", "pass", "pbratio",
618 "pre-scenecut", "psnr", "qblur", "qp", "qcomp", "qpstep", "qpmax",
619 "qpmin", "qp-max", "qp-min", "quiet", "ratetol", "ref", "scenecut",
620 "sps-id", "ssim", "stats", "subme", "subpel", "tolerance", "trellis",
621 "verbose", "vbv-bufsize", "vbv-init", "vbv-maxrate", "weightb", "aq-mode",
622 "aq-strength", "psy-rd", "profile", NULL
625 static block_t *Encode( encoder_t *, picture_t * );
635 mtime_t i_interpolated_dts;
640 /*****************************************************************************
641 * Open: probe the encoder
642 *****************************************************************************/
643 static int Open ( vlc_object_t *p_this )
645 encoder_t *p_enc = (encoder_t *)p_this;
646 encoder_sys_t *p_sys;
649 int i_qmin = 0, i_qmax = 0;
653 if( p_enc->fmt_out.i_codec != VLC_CODEC_H264 &&
658 /* X264_POINTVER or X264_VERSION are not available */
659 msg_Dbg ( p_enc, "version x264 0.%d.X", X264_BUILD );
661 config_ChainParse( p_enc, SOUT_CFG_PREFIX, ppsz_sout_options, p_enc->p_cfg );
663 p_enc->fmt_out.i_cat = VIDEO_ES;
664 p_enc->fmt_out.i_codec = VLC_CODEC_H264;
665 p_enc->fmt_in.i_codec = VLC_CODEC_I420;
667 p_enc->pf_encode_video = Encode;
668 p_enc->pf_encode_audio = NULL;
669 p_enc->p_sys = p_sys = malloc( sizeof( encoder_sys_t ) );
672 p_sys->i_interpolated_dts = 0;
673 p_sys->psz_stat_name = NULL;
674 p_sys->p_buffer = NULL;
676 x264_param_default( &p_sys->param );
677 p_sys->param.i_width = p_enc->fmt_in.video.i_width;
678 p_sys->param.i_height = p_enc->fmt_in.video.i_height;
680 p_sys->param.rc.f_qcompress = var_GetFloat( p_enc, SOUT_CFG_PREFIX "qcomp" );
682 /* transcode-default bitrate is 0,
683 * set more to ABR if user specifies bitrate */
684 if( p_enc->fmt_out.i_bitrate > 0 )
686 p_sys->param.rc.i_bitrate = p_enc->fmt_out.i_bitrate / 1000;
687 p_sys->param.rc.i_rc_method = X264_RC_ABR;
689 else /* Set default to CRF */
691 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "crf" );
692 if( i_val > 0 && i_val <= 51 )
694 p_sys->param.rc.f_rf_constant = i_val;
695 p_sys->param.rc.i_rc_method = X264_RC_CRF;
699 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "qpstep" );
700 if( i_val >= 0 && i_val <= 51 ) p_sys->param.rc.i_qp_step = i_val;
702 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "qpmin" );
703 if( i_val >= 0 && i_val <= 51 )
706 p_sys->param.rc.i_qp_min = i_qmin;
708 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "qpmax" );
709 if( i_val >= 0 && i_val <= 51 )
712 p_sys->param.rc.i_qp_max = i_qmax;
715 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "qp" );
716 if( i_val >= 0 && i_val <= 51 )
718 if( i_qmin > i_val ) i_qmin = i_val;
719 if( i_qmax < i_val ) i_qmax = i_val;
721 /* User defined QP-value, so change ratecontrol method */
722 p_sys->param.rc.i_rc_method = X264_RC_CQP;
723 p_sys->param.rc.i_qp_constant = i_val;
724 p_sys->param.rc.i_qp_min = i_qmin;
725 p_sys->param.rc.i_qp_max = i_qmax;
729 p_sys->param.rc.f_rate_tolerance = var_GetFloat( p_enc,
730 SOUT_CFG_PREFIX "ratetol" );
731 p_sys->param.rc.f_vbv_buffer_init = var_GetFloat( p_enc,
732 SOUT_CFG_PREFIX "vbv-init" );
733 p_sys->param.rc.i_vbv_buffer_size = var_GetInteger( p_enc,
734 SOUT_CFG_PREFIX "vbv-bufsize" );
736 /* max bitrate = average bitrate -> CBR */
737 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "vbv-maxrate" );
739 if( !i_val && p_sys->param.rc.i_rc_method == X264_RC_ABR )
740 p_sys->param.rc.i_vbv_max_bitrate = p_sys->param.rc.i_bitrate;
742 p_sys->param.rc.i_vbv_max_bitrate = i_val;
744 p_sys->param.b_cabac = var_GetBool( p_enc, SOUT_CFG_PREFIX "cabac" );
746 /* disable deblocking when nf (no loop filter) is enabled */
747 p_sys->param.b_deblocking_filter = !var_GetBool( p_enc, SOUT_CFG_PREFIX "nf" );
749 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "deblock" );
752 char *p = strchr( psz_val, ':' );
753 p_sys->param.i_deblocking_filter_alphac0 = atoi( psz_val );
754 p_sys->param.i_deblocking_filter_beta = p ?
755 atoi( p+1 ) : p_sys->param.i_deblocking_filter_alphac0;
759 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "psy-rd" );
762 char *p = strchr( psz_val, ':' );
763 p_sys->param.analyse.f_psy_rd = us_atof( psz_val );
764 p_sys->param.analyse.f_psy_trellis = p ? us_atof( p+1 ) : 0;
768 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "level" );
771 if( us_atof (psz_val) < 6 )
772 p_sys->param.i_level_idc = (int) (10 * us_atof (psz_val)
775 p_sys->param.i_level_idc = atoi (psz_val);
779 p_sys->param.b_interlaced = var_GetBool( p_enc, SOUT_CFG_PREFIX "interlaced" );
780 p_sys->param.rc.f_ip_factor = var_GetFloat( p_enc, SOUT_CFG_PREFIX "ipratio" );
781 p_sys->param.rc.f_pb_factor = var_GetFloat( p_enc, SOUT_CFG_PREFIX "pbratio" );
782 p_sys->param.rc.f_complexity_blur = var_GetFloat( p_enc, SOUT_CFG_PREFIX "cplxblur" );
783 p_sys->param.rc.f_qblur = var_GetFloat( p_enc, SOUT_CFG_PREFIX "qblur" );
784 p_sys->param.rc.i_aq_mode = var_GetInteger( p_enc, SOUT_CFG_PREFIX "aq-mode" );
785 p_sys->param.rc.f_aq_strength = var_GetFloat( p_enc, SOUT_CFG_PREFIX "aq-strength" );
787 if( var_GetBool( p_enc, SOUT_CFG_PREFIX "verbose" ) )
788 p_sys->param.i_log_level = X264_LOG_DEBUG;
790 if( var_GetBool( p_enc, SOUT_CFG_PREFIX "quiet" ) )
791 p_sys->param.i_log_level = X264_LOG_NONE;
793 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "sps-id" );
794 if( i_val >= 0 ) p_sys->param.i_sps_id = i_val;
796 if( var_GetBool( p_enc, SOUT_CFG_PREFIX "aud" ) )
797 p_sys->param.b_aud = true;
799 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "keyint" );
800 if(( i_val > 0 ) p_sys->param.i_keyint_max = i_val;
802 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "min-keyint" );
803 if( i_val > 0 ) p_sys->param.i_keyint_min = i_val;
805 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "bframes" );
806 if( i_val >= 0 && i_val <= 16 )
807 p_sys->param.i_bframe = i_val;
809 p_sys->param.b_bframe_pyramid = var_GetBool( p_enc, SOUT_CFG_PREFIX "bpyramid" );
811 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "ref" );
812 if( i_val > 0 && i_val <= 15 )
813 p_sys->param.i_frame_reference = i_val;
815 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "scenecut" );
816 if( i_val >= -1 && i_val <= 100 )
817 p_sys->param.i_scenecut_threshold = i_val;
819 p_sys->param.b_deterministic = var_GetBool( p_enc,
820 SOUT_CFG_PREFIX "non-deterministic" );
822 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "subme" );
823 if( i_val >= 1 && i_val <= SUBME_MAX )
824 p_sys->param.analyse.i_subpel_refine = i_val;
826 //TODO: psz_val == NULL ?
827 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "me" );
828 if( !strcmp( psz_val, "dia" ) )
830 p_sys->param.analyse.i_me_method = X264_ME_DIA;
832 else if( !strcmp( psz_val, "hex" ) )
834 p_sys->param.analyse.i_me_method = X264_ME_HEX;
836 else if( !strcmp( psz_val, "umh" ) )
838 p_sys->param.analyse.i_me_method = X264_ME_UMH;
840 else if( !strcmp( psz_val, "esa" ) )
842 p_sys->param.analyse.i_me_method = X264_ME_ESA;
844 else if( !strcmp( psz_val, "tesa" ) )
846 p_sys->param.analyse.i_me_method = X264_ME_TESA;
850 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "merange" );
851 if( i_val >= 0 && i_val <= 64 )
852 p_sys->param.analyse.i_me_range = i_val;
854 p_sys->param.analyse.i_mv_range = var_GetInteger( p_enc,
855 SOUT_CFG_PREFIX "mvrange" );
856 p_sys->param.analyse.i_mv_range_thread = var_GetInteger( p_enc,
857 SOUT_CFG_PREFIX "mvrange-thread" );
859 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "direct" );
860 if( !strcmp( psz_val, "none" ) )
862 p_sys->param.analyse.i_direct_mv_pred = X264_DIRECT_PRED_NONE;
864 else if( !strcmp( psz_val, "spatial" ) )
866 p_sys->param.analyse.i_direct_mv_pred = X264_DIRECT_PRED_SPATIAL;
868 else if( !strcmp( psz_val, "temporal" ) )
870 p_sys->param.analyse.i_direct_mv_pred = X264_DIRECT_PRED_TEMPORAL;
872 else if( !strcmp( psz_val, "auto" ) )
874 p_sys->param.analyse.i_direct_mv_pred = X264_DIRECT_PRED_AUTO;
878 p_sys->param.analyse.b_psnr = var_GetBool( p_enc, SOUT_CFG_PREFIX "psnr" );
879 p_sys->param.analyse.b_ssim = var_GetBool( p_enc, SOUT_CFG_PREFIX "ssim" );
880 p_sys->param.analyse.b_weighted_bipred = var_GetBool( p_enc,
881 SOUT_CFG_PREFIX "weightb" );
882 p_sys->param.i_bframe_adaptive = var_GetInteger( p_enc,
883 SOUT_CFG_PREFIX "b-adapt" );
885 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "b-bias" );
886 if( i_val >= -100 && i_val <= 100 )
887 p_sys->param.i_bframe_bias = i_val;
889 p_sys->param.analyse.b_chroma_me = var_GetBool( p_enc,
890 SOUT_CFG_PREFIX "chroma-me" );
891 p_sys->param.analyse.i_chroma_qp_offset = var_GetInteger( p_enc,
892 SOUT_CFG_PREFIX "chroma-qp-offset" );
893 p_sys->param.analyse.b_mixed_references = var_GetBool( p_enc,
894 SOUT_CFG_PREFIX "mixed-refs" );
896 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "trellis" );
897 if( i_val >= 0 && i_val <= 2 )
898 p_sys->param.analyse.i_trellis = i_val;
900 p_sys->param.analyse.b_fast_pskip = var_GetBool( p_enc,
901 SOUT_CFG_PREFIX "fast-pskip" );
903 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "nr" );
904 if( i_val >= 0 && i_val <= 1000 )
905 p_sys->param.analyse.i_noise_reduction = i_val;
907 p_sys->param.analyse.b_dct_decimate = var_GetBool( p_enc,
908 SOUT_CFG_PREFIX "dct-decimate" );
910 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "deadzone-inter" );
911 if( i_val >= 0 && i_val <= 32 )
912 p_sys->param.analyse.i_luma_deadzone[0] = i_val;
914 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "deadzone-intra" );
915 if( i_val >= 0 && i_val <= 32 )
916 p_sys->param.analyse.i_luma_deadzone[1] = i_val;
918 if( !var_GetBool( p_enc, SOUT_CFG_PREFIX "asm" ) )
919 p_sys->param.cpu = 0;
921 #ifndef X264_ANALYSE_BSUB16x16
922 # define X264_ANALYSE_BSUB16x16 0
924 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "partitions" );
925 if( !strcmp( psz_val, "none" ) )
927 p_sys->param.analyse.inter = 0;
929 else if( !strcmp( psz_val, "fast" ) )
931 p_sys->param.analyse.inter = X264_ANALYSE_I4x4;
933 else if( !strcmp( psz_val, "normal" ) )
935 p_sys->param.analyse.inter =
937 X264_ANALYSE_PSUB16x16;
938 #ifdef X264_ANALYSE_I8x8
939 p_sys->param.analyse.inter |= X264_ANALYSE_I8x8;
942 else if( !strcmp( psz_val, "slow" ) )
944 p_sys->param.analyse.inter =
946 X264_ANALYSE_PSUB16x16 |
947 X264_ANALYSE_BSUB16x16;
948 #ifdef X264_ANALYSE_I8x8
949 p_sys->param.analyse.inter |= X264_ANALYSE_I8x8;
952 else if( !strcmp( psz_val, "all" ) )
954 p_sys->param.analyse.inter = ~0;
958 p_sys->param.analyse.b_transform_8x8 = var_GetBool( p_enc,
959 SOUT_CFG_PREFIX "8x8dct" );
961 if( p_enc->fmt_in.video.i_aspect > 0 )
963 int64_t i_num, i_den;
964 unsigned int i_dst_num, i_dst_den;
966 i_num = p_enc->fmt_in.video.i_aspect *
967 (int64_t)p_enc->fmt_in.video.i_height;
968 i_den = VOUT_ASPECT_FACTOR * p_enc->fmt_in.video.i_width;
969 vlc_ureduce( &i_dst_num, &i_dst_den, i_num, i_den, 0 );
971 p_sys->param.vui.i_sar_width = i_dst_num;
972 p_sys->param.vui.i_sar_height = i_dst_den;
975 if( p_enc->fmt_in.video.i_frame_rate_base > 0 )
977 p_sys->param.i_fps_num = p_enc->fmt_in.video.i_frame_rate;
978 p_sys->param.i_fps_den = p_enc->fmt_in.video.i_frame_rate_base;
981 /* x264 vbv-bufsize = 0 (default). if not provided set period
982 in seconds for local maximum bitrate (cache/bufsize) based
983 on average bitrate when use has told bitrate.
984 vbv-buffer size is set to bitrate * secods between keyframes */
985 if( !p_sys->param.rc.i_vbv_buffer_size &&
986 p_sys->param.rc.i_rc_method == X264_RC_ABR &&
987 p_sys->param.i_fps_num )
989 p_sys->param.rc.i_vbv_buffer_size = p_sys->param.rc.i_bitrate *
990 p_sys->param.i_fps_den;
991 p_sys->param.rc.i_vbv_buffer_size *= p_sys->param.i_keyint_max;
992 p_sys->param.rc.i_vbv_buffer_size /= p_sys->param.i_fps_num;
995 /* Check if user has given some profile (baseline,main,high) to limit
996 * settings, and apply those*/
997 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "profile" );
1000 if( !strcasecmp( psz_val, "baseline" ) )
1002 msg_Dbg( p_enc, "Limiting to baseline profile");
1003 p_sys->param.analyse.b_transform_8x8 = 0;
1004 p_sys->param.b_cabac = 0;
1005 p_sys->param.i_bframe = 0;
1007 else if (!strcasecmp( psz_val, "main" ) )
1009 msg_Dbg( p_enc, "Limiting to main-profile");
1010 p_sys->param.analyse.b_transform_8x8 = 0;
1012 /* high profile don't restrict stuff*/
1017 unsigned i_cpu = vlc_CPU();
1018 if( !(i_cpu & CPU_CAPABILITY_MMX) )
1020 p_sys->param.cpu &= ~X264_CPU_MMX;
1022 if( !(i_cpu & CPU_CAPABILITY_MMXEXT) )
1024 p_sys->param.cpu &= ~X264_CPU_MMXEXT;
1026 if( !(i_cpu & CPU_CAPABILITY_SSE) )
1028 p_sys->param.cpu &= ~X264_CPU_SSE;
1030 if( !(i_cpu & CPU_CAPABILITY_SSE2) )
1032 p_sys->param.cpu &= ~X264_CPU_SSE2;
1035 /* BUILD 29 adds support for multi-threaded encoding while BUILD 49 (r543)
1036 also adds support for threads = 0 for automatically selecting an optimal
1037 value (cores * 1.5) based on detected CPUs. Default behavior for x264 is
1038 threads = 1, however VLC usage differs and uses threads = 0 (auto) by
1039 default unless ofcourse transcode threads is explicitly specified.. */
1040 p_sys->param.i_threads = p_enc->i_threads;
1042 psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "stats" );
1045 p_sys->param.rc.psz_stat_in =
1046 p_sys->param.rc.psz_stat_out =
1047 p_sys->psz_stat_name = psz_val;
1050 i_val = var_GetInteger( p_enc, SOUT_CFG_PREFIX "pass" );
1051 if( i_val > 0 && i_val <= 3 )
1053 p_sys->param.rc.b_stat_write = i_val & 1;
1054 p_sys->param.rc.b_stat_read = i_val & 2;
1057 /* We need to initialize pthreadw32 before we open the encoder,
1058 but only once for the whole application. Since pthreadw32
1059 doesn't keep a refcount, do it ourselves. */
1060 #ifdef PTW32_STATIC_LIB
1061 vlc_value_t lock, count;
1063 var_Create( p_enc->p_libvlc, "pthread_win32_mutex", VLC_VAR_MUTEX );
1064 var_Get( p_enc->p_libvlc, "pthread_win32_mutex", &lock );
1065 vlc_mutex_lock( lock.p_address );
1067 var_Create( p_enc->p_libvlc, "pthread_win32_count", VLC_VAR_INTEGER );
1068 var_Get( p_enc->p_libvlc, "pthread_win32_count", &count );
1070 if( count.i_int == 0 )
1072 msg_Dbg( p_enc, "initializing pthread-win32" );
1073 if( !pthread_win32_process_attach_np() || !pthread_win32_thread_attach_np() )
1075 msg_Warn( p_enc, "pthread Win32 Initialization failed" );
1076 vlc_mutex_unlock( lock.p_address );
1077 return VLC_EGENERIC;
1082 var_Set( p_enc->p_libvlc, "pthread_win32_count", count );
1083 vlc_mutex_unlock( lock.p_address );
1087 /* Set lookahead value to lower than default,
1088 * as rtp-output without mux doesn't handle
1089 * difference that well yet*/
1090 p_sys->param.rc.i_lookahead=5;
1092 /* Open the encoder */
1093 p_sys->h = x264_encoder_open( &p_sys->param );
1095 if( p_sys->h == NULL )
1097 msg_Err( p_enc, "cannot open x264 encoder" );
1098 Close( VLC_OBJECT(p_enc) );
1099 return VLC_EGENERIC;
1103 p_sys->i_buffer = 4 * p_enc->fmt_in.video.i_width *
1104 p_enc->fmt_in.video.i_height + 1000;
1105 p_sys->p_buffer = malloc( p_sys->i_buffer );
1106 if( !p_sys->p_buffer )
1108 Close( VLC_OBJECT(p_enc) );
1112 /* get the globals headers */
1113 p_enc->fmt_out.i_extra = 0;
1114 p_enc->fmt_out.p_extra = NULL;
1116 p_enc->fmt_out.i_extra = x264_encoder_headers( p_sys->h, &nal, &i_nal );
1117 p_enc->fmt_out.p_extra = malloc( p_enc->fmt_out.i_extra );
1118 if( !p_enc->fmt_out.p_extra )
1120 Close( VLC_OBJECT(p_enc) );
1123 void *p_tmp = p_enc->fmt_out.p_extra;
1124 for( i = 0; i < i_nal; i++ )
1126 memcpy( p_tmp, nal[i].p_payload, nal[i].i_payload );
1127 p_tmp += nal[i].i_payload;
1133 /****************************************************************************
1135 ****************************************************************************/
1136 static block_t *Encode( encoder_t *p_enc, picture_t *p_pict )
1138 encoder_sys_t *p_sys = p_enc->p_sys;
1142 int i_nal, i_out, i;
1145 memset( &pic, 0, sizeof( x264_picture_t ) );
1146 pic.i_pts = p_pict->date;
1147 pic.img.i_csp = X264_CSP_I420;
1148 pic.img.i_plane = p_pict->i_planes;
1149 for( i = 0; i < p_pict->i_planes; i++ )
1151 pic.img.plane[i] = p_pict->p[i].p_pixels;
1152 pic.img.i_stride[i] = p_pict->p[i].i_pitch;
1155 x264_encoder_encode( p_sys->h, &nal, &i_nal, &pic, &pic );
1157 if( !i_nal ) return NULL;
1159 for( i = 0, i_out = 0; i < i_nal; i++ )
1161 memcpy( p_sys->p_buffer + i_out, nal[i].p_payload, nal[i].i_payload );
1162 i_out += nal[i].i_payload;
1165 p_block = block_New( p_enc, i_out );
1166 if( !p_block ) return NULL;
1167 memcpy( p_block->p_buffer, p_sys->p_buffer, i_out );
1169 if( pic.i_type == X264_TYPE_IDR || pic.i_type == X264_TYPE_I )
1170 p_block->i_flags |= BLOCK_FLAG_TYPE_I;
1171 else if( pic.i_type == X264_TYPE_P )
1172 p_block->i_flags |= BLOCK_FLAG_TYPE_P;
1173 else if( pic.i_type == X264_TYPE_B )
1174 p_block->i_flags |= BLOCK_FLAG_TYPE_B;
1176 /* This isn't really valid for streams with B-frames */
1177 p_block->i_length = INT64_C(1000000) *
1178 p_enc->fmt_in.video.i_frame_rate_base /
1179 p_enc->fmt_in.video.i_frame_rate;
1181 p_block->i_pts = pic.i_pts;
1183 if( p_sys->param.i_bframe > 0 )
1185 if( p_block->i_flags & BLOCK_FLAG_TYPE_B )
1187 /* FIXME : this is wrong if bpyramid is set */
1188 p_block->i_dts = p_block->i_pts;
1189 p_sys->i_interpolated_dts = p_block->i_dts;
1193 if( p_sys->i_interpolated_dts )
1195 p_block->i_dts = p_sys->i_interpolated_dts;
1199 /* Let's put something sensible */
1200 p_block->i_dts = p_block->i_pts;
1203 p_sys->i_interpolated_dts += p_block->i_length;
1208 p_block->i_dts = p_block->i_pts;
1214 /*****************************************************************************
1215 * CloseEncoder: x264 encoder destruction
1216 *****************************************************************************/
1217 static void Close( vlc_object_t *p_this )
1219 encoder_t *p_enc = (encoder_t *)p_this;
1220 encoder_sys_t *p_sys = p_enc->p_sys;
1222 free( p_sys->psz_stat_name );
1225 x264_encoder_close( p_sys->h );
1227 #ifdef PTW32_STATIC_LIB
1228 vlc_value_t lock, count;
1230 var_Get( p_enc->p_libvlc, "pthread_win32_mutex", &lock );
1231 vlc_mutex_lock( lock.p_address );
1233 var_Get( p_enc->p_libvlc, "pthread_win32_count", &count );
1235 var_Set( p_enc->p_libvlc, "pthread_win32_count", count );
1237 if( count.i_int == 0 )
1239 pthread_win32_thread_detach_np();
1240 pthread_win32_process_detach_np();
1241 msg_Dbg( p_enc, "pthread-win32 deinitialized" );
1243 vlc_mutex_unlock( lock.p_address );
1246 free( p_sys->p_buffer );