source: extensions/gsdl-video/trunk/perllib/plugins/VideoConverter.pm@ 20346

Last change on this file since 20346 was 20346, checked in by max, 13 years ago

Add Handbrake support, add 3 new arguments for handbrake: streamingHQsize, streamingHQVideoBitrate and streamingHQAudioBitrate.

File size: 30.2 KB
Line 
1###########################################################################
2#
3# VideoConverter - helper plugin that does video (and audio) conversion using ffmpeg
4#
5# A component of the Greenstone digital library software
6# from the New Zealand Digital Library Project at the
7# University of Waikato, New Zealand.
8#
9# Copyright (C) 2008 New Zealand Digital Library Project
10#
11# This program is free software; you can redistribute it and/or modify
12# it under the terms of the GNU General Public License as published by
13# the Free Software Foundation; either version 2 of the License, or
14# (at your option) any later version.
15#
16# This program is distributed in the hope that it will be useful,
17# but WITHOUT ANY WARRANTY; without even the implied warranty of
18# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19# GNU General Public License for more details.
20#
21# You should have received a copy of the GNU General Public License
22# along with this program; if not, write to the Free Software
23# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24#
25###########################################################################
26package VideoConverter;
27
28use MultimediaConverter;
29
30
31use strict;
32no strict 'refs'; # allow filehandles to be variables and viceversa
33
34use gsprintf 'gsprintf';
35
36BEGIN {
37 @VideoConverter::ISA = ('MultimediaConverter');
38}
39
40
41my @thumb_arguments = (
42 { 'name' => "create_thumbnail",
43 'desc' => "{ImageConverter.create_thumbnail}",
44 'type' => "enum",
45 'list' => [{'name' => "true", 'desc' => "{common.true}"},
46 {'name' => "false", 'desc' => "{common.false}"}],
47 'deft' => "true",
48 'reqd' => "no" },
49 { 'name' => "thumbnailsize",
50 'desc' => "{ImageConverter.thumbnailsize}",
51 'type' => "int",
52 'deft' => "100",
53 'range' => "1,",
54 'reqd' => "no" },
55 { 'name' => "thumbnailtype",
56 'desc' => "{ImageConverter.thumbnailtype}",
57 'type' => "string",
58 'deft' => "jpg",
59 'reqd' => "no" },
60 { 'name' => "noscaleup",
61 'desc' => "{ImageConverter.noscaleup}",
62 'type' => "flag",
63 'reqd' => "no" } );
64
65
66my @screenview_arguments = (
67 { 'name' => "create_screenview",
68 'desc' => "{ImageConverter.create_screenview}",
69 'type' => "enum",
70 'list' => [{'name' => "true", 'desc' => "{common.true}"},
71 {'name' => "false", 'desc' => "{common.false}"}],
72 'deft' => "true",
73 'reqd' => "no" },
74 { 'name' => "screenviewsize",
75 'desc' => "{ImageConverter.screenviewsize}",
76 'type' => "int",
77 'deft' => "352",
78 'range' => "1,",
79 'reqd' => "no" },
80 { 'name' => "screenviewtype",
81 'desc' => "{ImageConverter.screenviewtype}",
82 'type' => "string",
83 'deft' => "jpg",
84 'reqd' => "no" } );
85
86my $arguments = [
87 @thumb_arguments,
88 @screenview_arguments,
89
90 { 'name' => "converttotype",
91 'desc' => "{ImageConverter.converttotype}",
92 'type' => "string",
93 'deft' => "",
94 'reqd' => "no" },
95
96
97 { 'name' => "converttosize",
98 'desc' => "{VideoPlugin.converttosize}",
99 'type' => "int",
100 'deft' => "",
101## 'deft' => "352",
102 'reqd' => "no" },
103 { 'name' => "converttobitrate",
104 'desc' => "{VideoPlugin.converttobitrate}",
105 'type' => "string",
106 'deft' => "200k",
107 'reqd' => "no" },
108 { 'name' => "extractkeyframes",
109 'desc' => "{VideoPlugin.extractkeyframes}",
110 'type' => "flag",
111 'deft' => "0",
112 'reqd' => "no" },
113 { 'name' => "streamingsize",
114 'desc' => "{VideoPlugin.streamingsize}",
115 'type' => "int",
116 'deft' => "352",
117 'reqd' => "no" },
118 { 'name' => "streamingbitrate",
119 'desc' => "{VideoPlugin.streamingbitrate}",
120 'type' => "string",
121 'deft' => "200k",
122 'reqd' => "no" },
123 { 'name' => "streamingHQsize",
124 'desc' => "{VideoPlugin.streamingsize}",
125 'type' => "int",
126 'deft' => "576",
127 'reqd' => "no" },
128 { 'name' => "streamingHQVideoBitrate",
129 'desc' => "{VideoPlugin.streamingbitrate}",
130 'type' => "int",
131 'deft' => "426",
132 'reqd' => "no" },
133 { 'name' => "streamingHQAudioBitrate",
134 'desc' => "{VideoPlugin.streamingbitrate}",
135 'type' => "int",
136 'deft' => "86",
137 'reqd' => "no" },
138
139 { 'name' => "minimumsize",
140 'desc' => "{ImageConverter.minimumsize}",
141 'type' => "int",
142 'deft' => "100",
143 'range' => "1,",
144 'reqd' => "no" },
145
146 ];
147
148my $options = { 'name' => "VideoConverter",
149 'desc' => "{VideoConverter.desc}",
150 'abstract' => "yes",
151 'inherits' => "yes",
152 'args' => $arguments };
153
154sub new {
155 my ($class) = shift (@_);
156 my ($pluginlist,$inputargs,$hashArgOptLists) = @_;
157 push(@$pluginlist, $class);
158
159 push(@{$hashArgOptLists->{"ArgList"}},@{$arguments});
160 push(@{$hashArgOptLists->{"OptList"}},$options);
161
162 my $self = new MultimediaConverter($pluginlist, $inputargs, $hashArgOptLists, 1);
163
164
165 return bless $self, $class;
166
167}
168
169
170
171
172# Discover the characteristics of a video file.
173
174# Equivalent step to that in ImagePlugin that uses ImageMagicks's
175# 'indentify' utility
176
177# Here we use 'ffmpeg' for video but for consistency keep the Perl
178# method name the same as before
179
180
181sub identify {
182 my ($video, $outhandle, $verbosity) = @_;
183
184 # Use the ffmpeg command to get the file specs
185 my $command = "ffmpeg -i \"$video\"";
186
187 print $outhandle " $command\n" if ($verbosity > 2);
188 my $result = '';
189 $result = `$command 2>&1`;
190 print $outhandle " $result\n" if ($verbosity > 4);
191
192 # Read the type, width, and height etc.
193 my $vtype = 'unknown';
194 my $vcodec = 'unknown';
195 my $width = 'unknown';
196 my $height = 'unknown';
197 my $fps = 'unknown';
198
199 my $atype = 'unknown';
200 my $afreq = 'unknown';
201 my $achan = 'unknown';
202 my $arate = 'unknown';
203
204 my $video_safe = quotemeta $video;
205
206 # strip off everything up to filename
207 $result =~ s/^.*\'$video_safe\'://s;
208
209## if ($result =~ m/Video: (.*?) fps/m) {
210 if ($result =~ m/^\s+Stream.*?Video: (.*?)$/m) {
211 my $video_info = $1;
212 $video_info =~ s/\s*\[.*?\]//g;
213
214 my @video_fields = split(/,\s*/,$video_info);
215
216 $vtype = shift @video_fields;
217
218 if ($video_fields[0] !~ m/(\d+)x(\d+)/) {
219 $vcodec = shift @video_fields;
220 }
221 my $video_dim = shift @video_fields;
222
223 ($width,$height) = ($video_dim =~ m/(\d+)x(\d+)/);
224
225# if ($video_info =~ m/([^,]+),(?: ([^,]+),)? (\d+)x(\d+),.*?(\d+\.\d+)/)
226# {
227# $vtype = $1;
228# $vcodec = $2 if defined $2;
229# $width = $3;
230# $height = $4;
231# $fps = $5;
232# }
233 }
234
235 if ($result =~ m/Audio: (\w+), (\d+) Hz, (\w+)(?:, (\d+.*))?/m) {
236 $atype = $1;
237 $afreq = $2;
238 $achan = $3;
239 $arate = $4 if (defined $4);
240 }
241
242 # Read the duration
243 my $duration = "unknown";
244 if ($result =~ m/Duration: (\d+:\d+:\d+\.\d+)/m) {
245 $duration = $1;
246 }
247 print $outhandle " file: $video:\t $vtype, $width, $height, $duration\n"
248 if ($verbosity > 2);
249
250 if ($verbosity >3) {
251 print $outhandle "\t video codec=$vcodec, fps = $fps\n";
252 print $outhandle "\t audio codec=$atype, freq = $afreq Hz, $achan, $arate\n";
253 }
254
255 # Return the specs
256 return ($vtype, $width, $height, $duration, -s $video,
257 $vcodec,$fps,$atype,$afreq,$achan,$arate);
258}
259
260
261sub vob_durations
262{
263 my ($media_base_dir,$title_num,$outhandle) = @_;
264
265 my $filter_re = sprintf("^VTS_%02d_[1-9]\\.VOB\$",$title_num);
266
267 my $duration_info = {};
268
269 if (opendir(VTSIN,$media_base_dir)) {
270 my @vts_title_vobs = grep { $_ =~ m/$filter_re/ } readdir(VTSIN);
271 closedir(VTSIN);
272
273 foreach my $v (@vts_title_vobs) {
274 my $full_v = &util::filename_cat($media_base_dir,$v);
275
276 my ($vtype, $width, $height, $duration, $vsize,
277 $vcodec,$fps,$atype,$afreq,$achan,$arate) = identify($full_v,$outhandle,0);
278
279 my ($vob_num) = ($v =~ m/^VTS_\d\d_(\d)\.VOB$/);
280
281 $duration_info->{$vob_num} = $duration;
282 print STDERR "**** $title_num: $title_num, storing {$vob_num} => $duration\n";
283
284 }
285
286 }
287 else {
288 print $outhandle "Warning: unable to read files in directory $media_base_dir\n";
289 }
290
291 return $duration_info;
292
293}
294
295
296
297sub init_cache_for_file {
298 my $self = shift(@_);
299
300 my ($video_filename) = @_;
301
302 $self->SUPER::init_cache_for_file($video_filename);
303
304
305 my @flvtool2_monitor = ( 'monitor_init' ,"convertutil::monitor_init_unbuffered",
306 'monitor_line' , "VideoConverter::flvtool2_monitor_line",
307 'monitor_deinit' , "convertutil::monitor_deinit_unbuffered" );
308
309 $self->{'flvtool2_monitor'} = \@flvtool2_monitor;
310
311
312}
313
314
315
316sub optional_frame_scale
317{
318 my $self = shift (@_);
319 my ($orig_size,$video_width,$video_height) = @_;
320
321 my $s_opt = "";
322
323 if ($video_width > $video_height) {
324 if ($video_width > $orig_size) {
325 my $scale_factor = $orig_size/$video_width;
326 my $scaled_width = int($video_width * $scale_factor);
327 my $scaled_height = int($video_height * $scale_factor);
328
329 # round to be ensure multiple of 2 (needed by some codecs)
330 $scaled_width = int($scaled_width/2)*2;
331 $scaled_height = int($scaled_height/2)*2;
332
333 $s_opt = "-s ${scaled_width}x${scaled_height}";
334 }
335 # else, video is smaller than requested size, don't scale up
336 }
337 else {
338 if ($video_height > $orig_size) {
339 my $scale_factor = $orig_size/$video_height;
340 my $scaled_width = int($video_width * $scale_factor);
341 my $scaled_height = int($video_height * $scale_factor);
342
343 # round to be ensure multiple of 2 (needed by some codecs)
344 $scaled_width = int($scaled_width/2)*2;
345 $scaled_height = int($scaled_height/2)*2;
346
347 $s_opt = "-s ${scaled_width}x${scaled_height}";
348 }
349 # else, video is smaller than requested size, don't scale up
350
351 }
352
353 return $s_opt;
354}
355
356
357sub keyframe_cmd
358{
359 my $self = shift (@_);
360 my ($ivideo_filename) = @_;
361
362 my $video_ext_dir = &util::filename_cat($ENV{'GSDLHOME'},"ext","video");
363
364 my $output_dir = $self->{'cached_dir'};
365 my $ivideo_root = $self->{'cached_file_root'};
366
367 my $oshot_filename = &util::filename_cat($output_dir,"shots.xml");
368
369 my $exp_duration = $self->{'exp_duration'};
370 my $t_opt = (defined $exp_duration) ? "-t $exp_duration" : "";
371
372 my $main_opts = "-y $t_opt";
373
374 my $hive = &util::filename_cat($video_ext_dir,"lib","vhook","hive.so");
375
376 my $oflash_filename = &util::filename_cat($output_dir,"$ivideo_root\_keyframe.flv");
377
378 my $vhook_opts = "$hive -o $oshot_filename -k $output_dir $ivideo_filename";
379
380 my $ivideo_filename_gsdlenv = $self->gsdlhome_independent($ivideo_filename);
381 my $oflash_filename_gsdlenv = $self->gsdlhome_independent($oflash_filename);
382
383 my $ffmpeg_cmd = "ffkeyframe $main_opts -vhook \"$vhook_opts\" -i \"$ivideo_filename_gsdlenv\" -an -y \"$oflash_filename_gsdlenv\"";
384
385
386 return ($ffmpeg_cmd,$oflash_filename);
387}
388
389
390sub stream_mp4_video_cmd
391{
392 my $self = shift (@_);
393 my ($ivideo_filename,$streaming_HQ_size, $streaming_HQ_VideoBitrate,
394 $streaming_HQ_AudioBitrate) = @_;
395
396
397 my $output_dir = $self->{'cached_dir'};
398 my $ivideo_root = $self->{'cached_file_root'};
399
400 my $omp4_file = "${ivideo_root}_vHQstream.mp4";
401 my $omp4_filename = &util::filename_cat($output_dir,$omp4_file);
402
403
404 #my $exp_duration = $self->{'exp_duration'};
405 #my $t_opt = (defined $exp_duration) ? "-t $exp_duration" : "";
406
407
408
409 my $size;
410 # Looks for empty string as well as fullsize string
411 if(!$streaming_HQ_size || $streaming_HQ_size eq "fullsize") {
412 $size = "--strict-anamorphic";
413 } else {
414 $size = "-w $streaming_HQ_size --loose-anamorphic";
415 }
416
417
418 my $ivideo_filename_gsdlenv = $self->gsdlhome_independent($ivideo_filename);
419 my $omp4_filename_gsdlenv = $self->gsdlhome_independent($omp4_filename);
420
421 my $pre_opts = "--decomb -t 1 -c 1";
422 my $post_opts = "-f mp4 $size -O -e x264 -b $streaming_HQ_VideoBitrate -a 1 -E faac -6 dpl2 -B $streaming_HQ_AudioBitrate -D 0.0 -x ref=2:bframes=2:me-umh -v 1";
423
424 my $handbrake_cmd = "HandbrakeCLI.exe -i \"$ivideo_filename_gsdlenv\" $pre_opts -o \"$omp4_filename_gsdlenv\" $post_opts";
425
426
427 return ($handbrake_cmd,$omp4_filename,$omp4_file);
428}
429
430
431
432sub stream_flv_video_cmd
433{
434 my $self = shift (@_);
435 my ($ivideo_filename,$video_width,$video_height,
436 $streaming_quality,
437 $streaming_bitrate,$streaming_size,
438 $opt_streaming_achan, $opt_streaming_arate) = @_;
439
440 my $streaming_achan
441 = (defined $opt_streaming_achan) ? $opt_streaming_achan : 2;
442
443 my $streaming_arate
444 = (defined $opt_streaming_arate) ? $opt_streaming_arate : 22050;
445
446 my $output_dir = $self->{'cached_dir'};
447 my $ivideo_root = $self->{'cached_file_root'};
448
449 my $oflash_file = "${ivideo_root}_vstream.flv";
450 my $oflash_filename = &util::filename_cat($output_dir,$oflash_file);
451
452 my $s_opt = "";
453 my $media_type = $self->{'media_type'};
454 if ($media_type ne "audio") {
455 $s_opt = $self->optional_frame_scale($streaming_size,$video_width,$video_height);
456 }
457
458
459 my $exp_duration = $self->{'exp_duration'};
460 my $t_opt = (defined $exp_duration) ? "-t $exp_duration" : "";
461
462 my $main_opts = "-y $t_opt";
463
464 my $bitrate_opt = "-b $streaming_bitrate";
465 ### my $stream_opts = "-r 25 $s_opt";
466 my $stream_opts .= " $s_opt -ac $streaming_achan -ar $streaming_arate";
467
468 # -flags +ilme+ildct' and maybe '-flags +alt' for interlaced material, and try '-top 0/1'
469
470 my $all_opts = "$main_opts $stream_opts";
471
472 my $ffmpeg_cmd;
473
474 my $ivideo_filename_gsdlenv = $self->gsdlhome_independent($ivideo_filename);
475 my $oflash_filename_gsdlenv = $self->gsdlhome_independent($oflash_filename);
476
477 if ($streaming_quality eq "high") {
478
479 my $pass_log_file = &util::filename_cat($output_dir,"$ivideo_root-logpass.txt");
480 if (-e $pass_log_file) {
481 &util::rm($pass_log_file);
482 }
483
484 my $pass_log_file_gsdlenv = $self->gsdlhome_independent($pass_log_file);
485
486 $all_opts .= " -passlogfile \"$pass_log_file_gsdlenv\"";
487
488 my $ffmpeg_cmd_pass1 = "ffmpeg -pass 1 -i \"$ivideo_filename_gsdlenv\" $all_opts -y \"$oflash_filename_gsdlenv\"";
489
490 my $ffmpeg_cmd_pass2 = "ffmpeg -pass 2 -i \"$ivideo_filename_gsdlenv\" $all_opts $bitrate_opt -y \"$oflash_filename_gsdlenv\"";
491 $ffmpeg_cmd = "( $ffmpeg_cmd_pass1 && $ffmpeg_cmd_pass2 )";
492 }
493 else {
494 # single pass
495
496 $ffmpeg_cmd = "ffmpeg -i \"$ivideo_filename_gsdlenv\" $all_opts -y \"$oflash_filename_gsdlenv\"";
497 }
498
499 return ($ffmpeg_cmd,$oflash_filename,$oflash_file);
500}
501
502
503
504
505sub stream_flv_audio_cmd
506{
507 # AudioConverter also has a routine for doing this
508 # => merge into one!
509 # **************
510
511 my $self = shift (@_);
512 my ($ivideo_filename, $opt_streaming_achan, $opt_streaming_arate) = @_;
513
514 # Convert either audio or video to streamable audio format
515
516 my $streaming_achan
517 = (defined $opt_streaming_achan) ? $opt_streaming_achan : 2;
518
519 my $streaming_arate
520 = (defined $opt_streaming_arate) ? $opt_streaming_arate : 22050;
521
522 my $output_dir = $self->{'cached_dir'};
523 my $ivideo_root = $self->{'cached_file_root'};
524
525 my $ofla_file = "${ivideo_root}_astream.flv";
526 my $ofla_filename = &util::filename_cat($output_dir,$ofla_file);
527
528 my $exp_duration = $self->{'exp_duration'};
529 my $t_opt = (defined $exp_duration) ? "-t $exp_duration" : "";
530
531 my $main_opts = "-vn -y $t_opt";
532
533 my $stream_opts .= " -ac $streaming_achan -ar $streaming_arate";
534
535 my $all_opts = "$main_opts $stream_opts";
536
537 my $ffmpeg_cmd;
538
539 my $ivideo_filename_gsdlenv = $self->gsdlhome_independent($ivideo_filename);
540 my $ofla_filename_gsdlenv = $self->gsdlhome_independent($ofla_filename);
541 $ffmpeg_cmd = "ffmpeg -i \"$ivideo_filename_gsdlenv\" $all_opts -y \"$ofla_filename_gsdlenv\"";
542
543 return ($ffmpeg_cmd,$ofla_filename,$ofla_file);
544}
545
546
547
548
549sub audio_excerpt_cmd
550{
551 my $self = shift (@_);
552 my ($ivoa_filename,$hh,$mm,$ss,$opt_excerpt_len) = @_;
553
554 # ivoa = input video or audio
555
556 my $time_encoded = "$hh:$mm:$ss";
557 my $time_encoded_file = "$hh$mm$ss";
558
559
560 my $output_dir = $self->{'cached_dir'};
561 my $ivoa_root = $self->{'cached_file_root'};
562
563 my $omp3_file = "${ivoa_root}_$time_encoded_file.mp3";
564 my $omp3_filename = &util::filename_cat($output_dir,$omp3_file);
565
566 my $all_opts = "-y -acodec mp3 -ss $time_encoded ";
567
568 if (defined $opt_excerpt_len) {
569 $all_opts .= "-t $opt_excerpt_len ";
570 }
571
572
573 my $ivoa_filename_gsdlenv = $self->gsdlhome_independent($ivoa_filename);
574 my $omp3_filename_gsdlenv = $self->gsdlhome_independent($omp3_filename);
575
576
577 my $ffmpeg_cmd = "ffmpeg -i \"$ivoa_filename_gsdlenv\" $all_opts \"$omp3_filename_gsdlenv\"";
578
579 return ($ffmpeg_cmd,$omp3_filename,$omp3_file);
580}
581
582
583
584sub streamseekable_cmd
585{
586 my $self = shift (@_);
587 my ($oflash_filename) = @_;
588
589 my $output_dir = $self->{'cached_dir'};
590 my $ivideo_root = $self->{'cached_file_root'};
591
592 my $cue_filename = &util::filename_cat($output_dir,"on_cue.xml");
593
594 my $flvtool_cmd = "flvtool2 -vUP \"$oflash_filename\"";
595
596 return ($flvtool_cmd,$oflash_filename);
597}
598
599
600sub streamkeyframes_cmd
601{
602 my $self = shift (@_);
603 my ($oflash_filename,$doc_obj,$section) = @_;
604
605 my $assocfilepath
606 = $doc_obj->get_metadata_element($section,"assocfilepath");
607
608 my $output_dir = $self->{'cached_dir'};
609
610 my $cue_filename = &util::filename_cat($output_dir,"on_cue.xml");
611
612 my $video_server = $ENV{'GEXT_VIDEO_SERVER'};
613 my $video_prefix = $ENV{'GEXT_VIDEO_PREFIX'};
614
615 my $collect = $ENV{'GSDLCOLLECTION'};
616
617 print STDERR "**** Warning: need to remove dependency of GEXT_VIDEO_SERVER and _PREFIX\n";
618
619 my $flvtool_cmd = "flvtool2 -vAUtP \"$cue_filename\" -thumbLocation:$video_server$video_prefix/collect/$collect/index/assoc/$assocfilepath \"$oflash_filename\"";
620
621
622 return ($flvtool_cmd,$oflash_filename);
623}
624
625
626sub streamcuepts_cmd
627{
628 my $self = shift (@_);
629 my ($oflash_filename) = @_;
630
631 my $output_dir = $self->{'cached_dir'};
632
633 my $cue_filename = &util::filename_cat($output_dir,"on_cue.xml");
634
635 my $video_server = $ENV{'GEXT_VIDEO_SERVER'};
636 my $video_prefix = $ENV{'GEXT_VIDEO_PREFIX'};
637
638 my $collect = $ENV{'GSDLCOLLECTION'};
639
640 ## my $thumbloc = "$video_server$video_prefix/collect/$collect";
641
642
643# my $flvtool_cmd = "flvtool2 -vUAtP \"$cue_filename\" -thumbLocation:$thumbloc \"$oflash_filename\"";
644
645# my $flvtool_cmd = "flvtool2 -vUAt \"$cue_filename\" \"$oflash_filename\"";
646
647
648
649# my $flvtool_cmd = "flvtool2 -vUAt \"$cue_filename\" \"$oflash_filename\"";
650
651
652## my $flvtool_cmd = "flvtool2 -vAt \"$cue_filename\" -UP \"$oflash_filename\" \"$output_dir/updated.flv\"";
653
654## my $flvtool_cmd = "flvtool2 -vAtU \"$cue_filename\" \"$oflash_filename\" \"$output_dir/updated.flv\"";
655
656 my $flvtool_cmd = "flvtool2 -vAtUP \"$cue_filename\" \"$oflash_filename\"";
657
658 return ($flvtool_cmd,$oflash_filename);
659}
660
661
662sub keyframe_thumbnail_cmd
663{
664 my $self = shift (@_);
665 my ($ivideo_filename,$thumbnailfile,$thumbnailwidth,$thumbnailheight) = @_;
666
667 my $output_dir = $self->{'cached_dir'};
668 my $ivideo_root = $self->{'cached_file_root'};
669
670 my $key_filename_prefix = &util::filename_cat($output_dir,$ivideo_root);
671
672
673 # Try for 4th keyframe, but fall back to 1st if doesn't exist
674 my $key_filename = "${key_filename_prefix}_0003.jpg";
675 $key_filename = "${key_filename_prefix}_0000.jpg" if (!-e $key_filename);
676
677 my $key_filename_gsdlenv = $self->gsdlhome_independent($key_filename);
678 my $thumbnailfile_gsdlenv = $self->gsdlhome_independent($thumbnailfile);
679
680 my $command;
681
682 if (-e $key_filename) {
683 $command = "convert -interlace plane -verbose -geometry $thumbnailwidth"
684 . "x$thumbnailheight \"$key_filename_gsdlenv\" \"$thumbnailfile_gsdlenv\"";
685 }
686 else {
687 # extractkeyframe has either not been switched on, or else had
688 # a problem when running
689 # => extract a from
690 # my $frame_rate = 1.0 / 60.0;
691
692 my $ivideo_filename_gsdlenv = $self->gsdlhome_independent($ivideo_filename);
693
694 $command = "ffmpeg -i \"$ivideo_filename_gsdlenv\" -ss 12.5 -vframes 1 -f image2 -s ${thumbnailwidth}x${thumbnailheight} -y \"$thumbnailfile_gsdlenv\"";
695
696 # fmpeg -i input.dv -r 1 -f image2 -s 120x96 images%05d.png
697 }
698
699 return ($command,$thumbnailfile);
700}
701
702
703sub keyframe_montage_cmd
704{
705 my $self = shift (@_);
706 my ($ivideo_filename,$montagefile) = @_;
707
708 my $output_dir = $self->{'cached_dir'};
709 my $ivideo_root = $self->{'cached_file_root'};
710
711 my $key_filename_prefix = &util::filename_cat($output_dir,$ivideo_root);
712
713 my $options = "-tile 10 -geometry 75x62+2+2";
714
715 my $command = "montage $options ${key_filename_prefix}_*.jpg \"$montagefile\"";
716
717 return ($command,$montagefile);
718}
719
720
721
722sub parse_shot_xml
723{
724 my ($self) = shift(@_);
725
726 my $outhandle = $self->{'outhandle'};
727 my $output_dir = $self->{'cached_dir'};
728
729 my $shots_filename = &util::filename_cat($output_dir,"shots.xml");
730
731 eval {
732 $self->{'parser'}->parsefile($shots_filename);
733 };
734
735 if ($@) {
736 print $outhandle "VideoConverter: skipping $shots_filename as not conformant to Hive shot syntax\n" if ($self->{'verbosity'} > 1);
737 print $outhandle "\n Perl Error:\n $@\n" if ($self->{'verbosity'}>2);
738 return 0;
739 }
740
741}
742
743sub associate_keyframes_old
744{
745 my ($self) = shift(@_);
746
747 my ($doc_obj,$section) = @_;
748
749 my $output_dir = $self->{'cached_dir'};
750
751 my $count = 1;
752 foreach my $kframe_file (@{$self->{'keyframe_fnames'}}) {
753
754 my $kframe_filename = &util::filename_cat($output_dir,$kframe_file);
755 $doc_obj->associate_file($kframe_filename,"keyframe$count.jpg","image/jpeg",
756 $section);
757 $count++;
758 }
759
760 $doc_obj->add_utf8_metadata($section,"NumKeyframes",scalar(@{$self->{'keyframe_fnames'}}));
761
762
763 # *****
764 # $doc_obj->add_metadata ($section, "thumblist", $self->{'flowplayer_thumblist'});
765
766}
767
768sub associate_keyframes
769{
770 my ($self) = shift(@_);
771
772 my ($doc_obj,$section) = @_;
773
774 my $output_dir = $self->{'cached_dir'};
775 my $timeline = $self->{'keyframe_timeline'};
776
777 my $count = 1;
778
779 foreach my $t (sort { $timeline->{$a}->{'keyframeindex'} <=> $timeline->{$b}->{'keyframeindex'} } keys %$timeline)
780 {
781 my $kframe_file = $timeline->{$t}->{'thumb'};
782 my $timestamp = $timeline->{$t}->{'timestamp'};
783
784 my $kframe_filename = &util::filename_cat($output_dir,$kframe_file);
785 $doc_obj->associate_file($kframe_filename,"keyframe$count.jpg","image/jpeg",
786 $section);
787 $doc_obj->add_utf8_metadata($section,"KeyframeTimestamp",$timestamp);
788
789 $count++;
790 }
791
792 $doc_obj->add_utf8_metadata($section,"NumKeyframes",scalar(@{$self->{'keyframe_fnames'}}));
793
794
795 # *****
796 # $doc_obj->add_metadata ($section, "thumblist", $self->{'flowplayer_thumblist'});
797}
798
799
800
801sub enable_audio_streaming
802{
803 my $self = shift (@_);
804 my ($doc_obj,$originalfilename,$filename,$convertto_regenerated) = @_;
805
806 my $section = $doc_obj->get_top_section();
807
808 my $output_dir = $self->{'cached_dir'};
809 my $ivideo_root = $self->{'cached_file_root'};
810
811 # Generate FLV audio-only format for streaming purposes
812
813 my $optionally_run_general_cmd = "run_uncached_general_cmd";
814 if ($self->{'enable_cache'}) {
815 $optionally_run_general_cmd
816 = ($convertto_regenerated) ? "regenerate_general_cmd" : "run_cached_general_cmd";
817 }
818
819
820 my ($stream_cmd,$ofla_filename,$ofla_file)
821 = $self->stream_flv_audio_cmd($originalfilename || $filename);
822
823
824 my $streamable_options = { @{$self->{'ffmpeg_monitor'}},
825 'message_prefix' => "Stream",
826 'message' => "Generating streamable audio: $ofla_file" };
827
828
829 my ($streamable_regenerated,$streamable_result,$streamable_had_error)
830 = $self->$optionally_run_general_cmd($stream_cmd,$ofla_filename,
831 $streamable_options);
832
833
834 if (!$streamable_had_error) {
835 my ($streamseekable_cmd,$ostreamseekable_filename) = $self->streamseekable_cmd($ofla_filename);
836
837 my $streamseekable_options = { @{$self->{'flvtool2_monitor'}},
838 'message_prefix' => "Stream Seekable",
839 'message' => "Reprocessing audio stream to be seekable by timeline: $ofla_file" };
840
841 if ($streamable_regenerated) {
842 $self->run_general_cmd($streamseekable_cmd,$streamseekable_options);
843 }
844
845 my $streamable_url = $ofla_file;
846 my $streamable_url_safe = $self->url_safe($streamable_url);
847
848 $doc_obj->add_utf8_metadata ($section, "streamableaudio", $streamable_url_safe);
849 $doc_obj->associate_file($ofla_filename,$ofla_file,"audio/flash",
850 $section);
851 }
852
853 $doc_obj->add_metadata ($section, "audioflashwidth", 400);
854 $doc_obj->add_metadata ($section, "audioflashheight", 22 + 100);
855
856 $self->{'ofla_file'} = $ofla_file;
857 $self->{'ofla_filename'} = $ofla_filename;
858
859 return $streamable_regenerated;
860}
861
862
863
864
865
866sub enable_video_streaming
867{
868 my $self = shift (@_);
869 my ($doc_obj,$originalfilename,$filename,$convertto_regenerated,
870 $video_width,$video_height) = @_;
871
872 my $section = $doc_obj->get_top_section();
873
874 my $output_dir = $self->{'cached_dir'};
875 my $ivideo_root = $self->{'cached_file_root'};
876
877 # Generate the Flash FLV format for streaming purposes
878
879 my $optionally_run_general_cmd = "run_uncached_general_cmd";
880 if ($self->{'enable_cache'}) {
881 $optionally_run_general_cmd
882 = ($convertto_regenerated) ? "regenerate_general_cmd" : "run_cached_general_cmd";
883 }
884
885
886 my $streaming_bitrate = $self->{'streamingbitrate'};
887 my $streaming_size = $self->{'streamingsize'};
888
889 my $streaming_quality = "high";
890
891 my ($stream_cmd,$oflash_filename,$oflash_file)
892 = $self->stream_flv_video_cmd($originalfilename || $filename,
893 $video_width,$video_height,
894 $streaming_quality,
895 $streaming_bitrate, $streaming_size);
896
897
898 my $streamable_options = { @{$self->{'ffmpeg_monitor'}},
899 'message_prefix' => "Stream",
900 'message' => "Generating streamable video: $oflash_file" };
901
902
903 my ($streamable_regenerated,$streamable_result,$streamable_had_error)
904 = $self->$optionally_run_general_cmd($stream_cmd,$oflash_filename,$streamable_options);
905
906 if (!$streamable_had_error) {
907 my ($streamseekable_cmd,$ostreamseekable_filename) = $self->streamseekable_cmd($oflash_filename);
908
909 my $streamseekable_options = { @{$self->{'flvtool2_monitor'}},
910 'message_prefix' => "Stream Seekable",
911 'message' => "Reprocessing video stream to be seekable by timeline: $oflash_file" };
912
913 if ($streamable_regenerated) {
914 $self->run_general_cmd($streamseekable_cmd,$streamseekable_options);
915 }
916
917 my $streamable_url = $oflash_file;
918 my $streamable_url_safe = $self->url_safe($streamable_url);
919
920 $doc_obj->add_utf8_metadata ($section, "streamablevideo", $streamable_url_safe);
921 $doc_obj->associate_file($oflash_filename,$oflash_file,"video/flash",
922 $section);
923 }
924
925
926 #
927 # FlowPlayer.swf height+22 pixels
928 # FlowPlayerBlack.swf height+16 pixels
929 # FlowPlayerThermo.swf height+16 pixels
930 # FlowPlayerWhite.swf height+26 pixels
931
932 my $flashwidth = $video_width;
933 my $flashheight = $video_height + 22;
934
935 if ($self->{'extractkeyframes'}) {
936 $flashheight += 100;
937 }
938
939 $doc_obj->add_metadata ($section, "flashwidth", $flashwidth);
940 $doc_obj->add_metadata ($section, "flashheight", $flashheight);
941
942 $self->{'oflash_file'} = $oflash_file;
943 $self->{'oflash_filename'} = $oflash_filename;
944
945 return $streamable_regenerated;
946}
947
948sub enable_h264_streaming
949{
950 my $self = shift (@_);
951 my ($doc_obj,$originalfilename,$filename,$convertto_regenerated,
952 $video_width,$video_height) = @_;
953
954
955 my $section = $doc_obj->get_top_section();
956
957 my $output_dir = $self->{'cached_dir'};
958 my $ivideo_root = $self->{'cached_file_root'};
959
960 # Generate the H264 video file format for streaming purposes using the cache feature if used
961
962 my $optionally_run_general_cmd = "run_uncached_general_cmd";
963 if ($self->{'enable_cache'}) {
964 $optionally_run_general_cmd
965 = ($convertto_regenerated) ? "regenerate_general_cmd" : "run_cached_general_cmd";
966 }
967
968
969 ## my $streaming_bitrate = $self->{'streamingbitrate'};
970 ## my $streaming_size = $self->{'streamingsize'};
971 my $streaming_HQ_size = $self->{'streamingHQsize'};
972 my $streaming_HQ_VideoBitrate = $self->{'streamingHQVideoBitrate'};
973 my $streaming_HQ_AudioBitrate = $self->{'streamingHQAudioBitrate'};
974
975 ## my $streaming_quality = "high";
976
977 my ($stream_cmd,$oflash_filename,$oflash_file)
978 = $self->stream_mp4_video_cmd($originalfilename || $filename,
979 $streaming_HQ_size,
980 $streaming_HQ_VideoBitrate,
981 $streaming_HQ_AudioBitrate);
982
983
984 my $streamable_options = { @{$self->{'handbrake_monitor'}},
985 'message_prefix' => "MP4 Stream",
986 'message' => "Generating streamable MP4 video: $oflash_file" };
987
988
989 my ($streamable_regenerated,$streamable_result,$streamable_had_error)
990 = $self->$optionally_run_general_cmd($stream_cmd,$oflash_filename,$streamable_options);
991
992 if (!$streamable_had_error) {
993# my ($streamseekable_cmd,$ostreamseekable_filename) = $self->streamseekable_cmd($oflash_filename);
994
995# my $streamseekable_options = { @{$self->{'flvtool2_monitor'}},
996# 'message_prefix' => "Stream Seekable",
997# 'message' => "Reprocessing video stream to be seekable by timeline: $oflash_file" };
998
999# if ($streamable_regenerated) {
1000# $self->run_general_cmd($streamseekable_cmd,$streamseekable_options);
1001# }
1002
1003 my $streamable_url = $oflash_file;
1004 my $streamable_url_safe = $self->url_safe($streamable_url);
1005
1006 #add the metadata for the resulting file that should be open inside the flash video player
1007 $doc_obj->add_utf8_metadata ($section, "streamablevideo", $streamable_url_safe);
1008 $doc_obj->associate_file($oflash_filename,$oflash_file,"video/mp4",
1009 $section);
1010 }
1011
1012
1013 #
1014 # FlowPlayer.swf height+22 pixels
1015 # FlowPlayerBlack.swf height+16 pixels
1016 # FlowPlayerThermo.swf height+16 pixels
1017 # FlowPlayerWhite.swf height+26 pixels
1018
1019 my $flashwidth = $video_width;
1020 my $flashheight = $video_height + 22;
1021
1022 if ($self->{'extractkeyframes'}) {
1023 $flashheight += 100;
1024 }
1025
1026 $doc_obj->add_metadata ($section, "flashwidth", $flashwidth);
1027 $doc_obj->add_metadata ($section, "flashheight", $flashheight);
1028
1029 $self->{'oflash_file'} = $oflash_file;
1030 $self->{'oflash_filename'} = $oflash_filename;
1031
1032 return $streamable_regenerated;
1033
1034
1035}
1036
1037sub enable_full_streaming
1038{
1039 my $self = shift (@_);
1040 my ($doc_obj,$originalfilename,$filename,$convertto_regenerated,
1041 $video_width,$video_height) = @_;
1042
1043 my $video_streamable_regenerated
1044 = $self->enable_video_streaming($doc_obj,$originalfilename,$filename,
1045 $convertto_regenerated,
1046 $video_width,$video_height);
1047
1048 my $audio_streamable_regenerated
1049 = $self->enable_audio_streaming($doc_obj,$originalfilename,$filename,
1050 $convertto_regenerated);
1051
1052 return ($video_streamable_regenerated || $audio_streamable_regenerated);
1053}
1054
1055
1056
1057sub flvtool2_monitor_line
1058{
1059 my ($line) = @_;
1060
1061 my $had_error = 0;
1062 my $generate_dot = 1;
1063
1064 if ($line =~ m/\s+\- /) {
1065 # ignore tabulated output printed at end of command
1066 $generate_dot = 0;
1067 }
1068
1069 if ($line =~ m/^Error:/i) {
1070 $had_error = 1;
1071 }
1072
1073 return ($had_error,$generate_dot);
1074}
1075
1076
1077
1078
1079
10801;
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