( ! ) Deprecated: Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /var/www/html/wp-includes/functions.php on line 6131
Call Stack
#TimeMemoryFunctionLocation
10.0000484048{main}( ).../index.php:0
20.0007484400require( '/var/www/html/wp-blog-header.php ).../index.php:17
30.30294112592require_once( '/var/www/html/wp-includes/template-loader.php ).../wp-blog-header.php:19
40.30774141584include( '/var/www/html/wp-content/themes/twentyfifteen/single.php ).../template-loader.php:125
50.30774141584get_header( $name = ???, $args = ??? ).../single.php:10
60.30774141800locate_template( $template_names = [0 => 'header.php'], $load = TRUE, $load_once = TRUE, $args = [] ).../general-template.php:48
70.30784141896load_template( $_template_file = '/var/www/html/wp-content/themes/twentyfifteen/header.php', $load_once = TRUE, $args = [] ).../template.php:749
80.30814142440require_once( '/var/www/html/wp-content/themes/twentyfifteen/header.php ).../template.php:814
90.30824149848wp_head( ).../header.php:18
100.30824149848do_action( $hook_name = 'wp_head' ).../general-template.php:3197
110.30824150064WP_Hook->do_action( $args = [0 => ''] ).../plugin.php:522
120.30824150064WP_Hook->apply_filters( $value = '', $args = [0 => ''] ).../class-wp-hook.php:365
130.30844153480wp_enqueue_scripts( '' ).../class-wp-hook.php:341
140.30844153480do_action( $hook_name = 'wp_enqueue_scripts' ).../script-loader.php:2311
150.30844153696WP_Hook->do_action( $args = [0 => ''] ).../plugin.php:522
160.30844153696WP_Hook->apply_filters( $value = '', $args = [0 => ''] ).../class-wp-hook.php:365
170.30864155584twentyfifteen_scripts( '' ).../class-wp-hook.php:341
180.30874157104wp_style_add_data( $handle = 'twentyfifteen-ie', $key = 'conditional', $value = 'lt IE 9' ).../functions.php:440
190.30874157104WP_Styles->add_data( $handle = 'twentyfifteen-ie', $key = 'conditional', $value = 'lt IE 9' ).../functions.wp-styles.php:245
200.30874157104WP_Dependencies->add_data( $handle = 'twentyfifteen-ie', $key = 'conditional', $value = 'lt IE 9' ).../class-wp-styles.php:385
210.30874157104_deprecated_argument( $function_name = 'WP_Dependencies->add_data()', $version = '6.9.0', $message = 'IE conditional comments are ignored by all supported browsers.' ).../class-wp-dependencies.php:317
220.30874163056wp_trigger_error( $function_name = '', $message = 'Function WP_Dependencies->add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers.', $error_level = 16384 ).../functions.php:5925
230.30884282592trigger_error( $message = 'Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers.', $error_level = 16384 ).../functions.php:6131
( ! ) Deprecated: Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /var/www/html/wp-includes/functions.php on line 6131
Call Stack
#TimeMemoryFunctionLocation
10.0000484048{main}( ).../index.php:0
20.0007484400require( '/var/www/html/wp-blog-header.php ).../index.php:17
30.30294112592require_once( '/var/www/html/wp-includes/template-loader.php ).../wp-blog-header.php:19
40.30774141584include( '/var/www/html/wp-content/themes/twentyfifteen/single.php ).../template-loader.php:125
50.30774141584get_header( $name = ???, $args = ??? ).../single.php:10
60.30774141800locate_template( $template_names = [0 => 'header.php'], $load = TRUE, $load_once = TRUE, $args = [] ).../general-template.php:48
70.30784141896load_template( $_template_file = '/var/www/html/wp-content/themes/twentyfifteen/header.php', $load_once = TRUE, $args = [] ).../template.php:749
80.30814142440require_once( '/var/www/html/wp-content/themes/twentyfifteen/header.php ).../template.php:814
90.30824149848wp_head( ).../header.php:18
100.30824149848do_action( $hook_name = 'wp_head' ).../general-template.php:3197
110.30824150064WP_Hook->do_action( $args = [0 => ''] ).../plugin.php:522
120.30824150064WP_Hook->apply_filters( $value = '', $args = [0 => ''] ).../class-wp-hook.php:365
130.30844153480wp_enqueue_scripts( '' ).../class-wp-hook.php:341
140.30844153480do_action( $hook_name = 'wp_enqueue_scripts' ).../script-loader.php:2311
150.30844153696WP_Hook->do_action( $args = [0 => ''] ).../plugin.php:522
160.30844153696WP_Hook->apply_filters( $value = '', $args = [0 => ''] ).../class-wp-hook.php:365
170.30864155584twentyfifteen_scripts( '' ).../class-wp-hook.php:341
180.33424283696wp_style_add_data( $handle = 'twentyfifteen-ie7', $key = 'conditional', $value = 'lt IE 8' ).../functions.php:444
190.33424283696WP_Styles->add_data( $handle = 'twentyfifteen-ie7', $key = 'conditional', $value = 'lt IE 8' ).../functions.wp-styles.php:245
200.33424283696WP_Dependencies->add_data( $handle = 'twentyfifteen-ie7', $key = 'conditional', $value = 'lt IE 8' ).../class-wp-styles.php:385
210.33424283696_deprecated_argument( $function_name = 'WP_Dependencies->add_data()', $version = '6.9.0', $message = 'IE conditional comments are ignored by all supported browsers.' ).../class-wp-dependencies.php:317
220.33424284016wp_trigger_error( $function_name = '', $message = 'Function WP_Dependencies->add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers.', $error_level = 16384 ).../functions.php:5925
230.33434284240trigger_error( $message = 'Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers.', $error_level = 16384 ).../functions.php:6131

Some useful ffmpeg commands ( commandline video converting tool)

1. Converting MOV/MPEG/AVI/MP4 –> flv 
#ffmpeg -i input file output.flv

2. Convert and adjust the video file resolution to output file
# ffmpeg -i input.avi -s 500×500 output.flv

3. Converting 3GP –> FLV
#ffmpeg -i input.3gp -sameq -an output.flv

4. Converting MPEG –>3GP
#ffmpeg -i input.mpeg -ab 8.85k -acodec libamr_wb -ac 1 -ar 16000 -vcodec h263 -s qcif output.3gp

5. Converting WMV –> to MP3
#ffmpeg -i input.wmv output.mp3

6. Converting AMR –> MP3
#ffmpeg -i input.amr -ar 22050 output.mp3

7. Converting FLV –> MP4
# ffmpeg -i input.flv -ar 22050 output.mp4

Advanced flash supported conversion.

#ffmpeg -i input.flv -s 480×360 -vcodec libx264 -b 1900kb -flags +loop -cmp +chroma -me_range 16 -me_method hex -subq 5 -i_qfactor 0.71 -qcomp 0.6 -qdiff 4 -directpred 1 -flags2 +fastpskip -dts_delta_threshold 1 -acodec libfaac -ab 128000 output.mp4

This code will support to play in Iphone.

#ffmpeg -i 400b75e5081fca44d094.flv -s 320×240 -r 24 -b 200k -bt 240k -vcodec libx264 -vpre hq -coder 0 -bf 0 -flags2 -wpred-dct8x8 -level 13 -maxrate 768k -bufsize 3M -acodec libfaac -ac 2 -ar 48000 -ab 192k new_output_new1.mp4

8. Converting AAC –> Mp3
#ffmpeg -i input.aac -ar 22050 -ab 32 output.mp3

Use ffmpeg with it’s best performance

The following arguments helps you to optimize the ffmpeg conversion to get the best result of converting mp4. to flv

# ffmpeg -i input.mp4 -ar 22050 -ab 56 -acodec mp3 -r 25 -f flv -b 400 -s 320×240 output.flv

-i = specify input file
-ar = audio sample rate
-ab = audio bitrate
-acodec = audio codec
-r = framerate
-f = output format
-b = bitrate (of video!)
-s = resize to width x height

10, Convert Video –> JPG Sequence
#ffmpeg -i input.mpg -an -r 10 -y -s 320×240 video%d.jpg

11. Convert Every n seconds to JPEG
#ffmpeg -i input.mpg -r 0.2 -sameq -f image2 thumbs%02d.jpg where r is the time when jpg file created. r can be 0.2 indicate every 5 second, if you need a jpeg on every 45 seconds use 1/45.

11. Crop the video between the specified time
#ffmpeg -i input.mpg -an -ss 00:00:03 -t 00:00:01 -r 1 -y -s 320×240 video%d.jpg where
-ss : Record start time
-t : No. of second to end suppose you want to crop 2 minutes video which starts from the 10 minutes play
-ss 00:10:00 -t 00:02:00
%d : Naming with timestamp

12. Converting flv –> mp3
#ffmpeg -i input.flv -vn -acodec copy output.mp3

13. Converting WAV –> MP3 
#ffmpeg -i Input.wav -ab 128 Output.mp3
#ffmpeg -i input.avi -vn -ar 44100 -ac 2 -ab 192 -f mp3 output.mp3

14 : Encode a video sequence for the iPpod/iPhone 
ffmpeg -i input.avi input -acodec aac -ab 128kb -vcodec mpeg4 -b 1200kb -mbd 2 -flags +4mv+trell -aic 2 -cmp 2 -subcmp 2 -s 320×180 -title X output.mp4

15. Converting AVI –> GIF
ffmpeg -i input.avi gif_anime.gif
16. Compress .avi –> divx
#ffmpeg -i input.avi -s 320×240 -vcodec msmpeg4v2 output.avi
Source : input.avi
Audio codec : aac
Audio bitrate : 128kb/s
Video codec : mpeg4
Video bitrate : 1200kb/s
Video size : 320px par 180px
Generated video : output.mp4

17. Converting flv –> Mp4
#ffmpeg -i sample.flv -ab 128kb -vcodec mpeg4 -b 1200kb -mbd 2 -s 320×240 final_video.mp4

some useful resources,

http://www.itbroadcastanddigitalcinema.com/ffmpeg_howto.html

http://ffmpeg.org/faq.html

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