#2. It not only converts into excel but also into your required format.<br>

[hawkesenpai]

Digital Video The Formats and Their Characteristics.

Digital video The formats and their characteristics.

is a type of video recording system that works using a digital representation of the  video signal, instead of analog. This generic term should not be confused with the name DV,  which is a specific type of digital video focused on the consumer market. Digital video is often recorded on tape, and then distributed on optical discs, usually DVDs. There are  exceptions, such as video cameras that record directly to DVD, Digital8 camcorders that encode digital video on conventional analog tapes, and other camcorders  that record digital video on hard drives or flash memory.

Format of the Recording Medium:

This feature refers to the physical medium in which the camcorder records the images. Currently, three types of digital video camera are available in the non- professional range  : miniDV, DVD and SD. It is important to find out locally the availability and cost of  these recording media, as this will have a direct impact on the logistics organization that the  educational institutions must attend in order to be able to use the video effectively. is a type of video recording system that works using a digital representation of the  video signal, instead of analog. This generic term should not be confused with the name DV, which is a specific type of digital video focused on the consumer market. Digital video is  often recorded on tape, and then distributed on optical discs, usually DVDs. There are exceptions, such as video cameras that record directly to DVD, Digital8 camcorders  that encode digital video on conventional analog tapes, and other camcorders that record digital video on hard drives or flash memory.

2.1. Proportionality:

anamorphic, according to which the DVD player itself selects the output at 16: 9 or adapts it to 4: 3.  It is the relation between the width and the height of the image. Today all DVDs incorporate the relationship   without deformation of the imgen.

Resolution:

The amount of pixels of width and height of the capture is what influences that, when  enlarging the image to see it in a TV or in a projector, it can be seen correctly or not.

Bitstream:

also called bit rate (BR) indicates the amount of information bits that are  transmitted in video. It is measured in bits per second (bits / s). Two types of

THE CODEC:

The codec is the algorithmic compression to   different requirements according to the use for which it is designed.  A format is the way in which the data is stored in the file; this form can meet  the content of the digital video format.

The formats:

MPEG:

It is the best known of the data compression algorithms that was established by the International Telecommunications Union . Originally four types were distinguished, MPEG-1, 2, 3 and  4. The evolution of the different compression formats has marked the appearance of products able to reproduce images with some compression standard, as well as their diffusion in the  consumer market and the professional market

The MPEG-1

established in 1991, it was designed to introduce video on a CD-ROM. At that time they were

slow, so the transfer speed was limited to 1.5Mb / s and the resolution at 352 x

240 pixels. The quality is similar to VHS and is used for videoconferences, the CD-i format, etc.

The MPEG-2

It was established in 1994 to offer higher quality with a higher bandwidth (between 3 and

10Mb / s). In that band, it provides 720 x 486 pixels of resolution, which equals the quality of

TV. It also offers compatibility with MPEG-1.

The MPEG-3

was a proposal for high resolution television, but the possibility that MPEG-2 with

Higher bandwidth meets the same expectations has been abandoned for now.

The MPEG-4

It is in development. It is a very low bandwidth format with a resolution of 176 x 144 pixels, designed for video conferences over the Internet, etc. It is evolving at great strides and there are fantastic software encoders that give a similar quality to MPEG-2 but with less bandwidth. It can be the standard of the future due to the excellent quality-bandwidth relationship. At present the compression standard most used is MPEG-2, since it offers a quality similar to that of television. Although the demand for bandwidth was quite high a while ago, now it is a reasonable amount (up to 10 Mb / s) formats we can mention two that are the most common: the MOV and the AVI (together with its AVI version 2.0)

The MOV format

is the standard for viewing dynamic images, compatible for both PC and Macintosh. According to the compression algorithm you can achieve professional qualities.

The AVI format

(Audio Video Interleave) has a very simple operation, because it stores information by layers, saving a layer of video followed by an audio layer. But now a new format has been born, the DivX. Technically, it is a video encoding format, which combined with MP3 audio compression achieves high image quality with a flow rate of less than 1Mb / s.

It is worth mentioning that this format is the alternative of DVD piracy, since it is a cheap and quality alternative, similar to what MP3 has meant for the world of music. It makes it possible, through a recoding process of the content of the DVD, to introduce an entire DVD movie on a CD-Rom with a quality superior to VHS and not much inferior to the DVD itself.

Resolution:

PAL vs NTS:

In principle, DVD PAL has a weight advantage over NTSC DVDs. PAL DVD has 576 pixels of vertical resolution versus 480 pixels of vertical resolution. That's a 20% increase in the resolution of a PAL DVD compared to an NTSC DVD. The increase in resolution results in a better player image. However, this is a simplistic way of looking at the whole NTSC PAL problem, since there are other factors that must be taken into account.

Active Pixels and 16x9 enhancement Because programming can be presented on DVD in various formats, it is useful to consider the active pixels in a given image when considering the total resolution of a DVD. For a wide-screen image, not all the pixels available on a DVD are actually used for the image. Some of them form the black bars above and below the image. The format that provides the total active pixel more than a certain aspect ratio, in theory, the best possible format. Complicating the problem is the difference in active pixels when a DVD is enhanced 16x9. The following table shows the common aspect ratios presented in DVD together with the total of active pixels presented in each possible DVD format.

Bitstream:

Constant bit stream (CBR):

When we talk about codecs, the coding with constant bit rate implies that the output rate of the data encoder is constant. CBR is very useful for multimedia data flow with limited capacity channels. However, CBR is not the best choice for storage because it will not allocate enough bits for the "complicated" sections (resulting from quality degradation) and instead will spend unnecessary bits in "simple" sections. Many coding schemes, such as Huffman coding, produce variable length codes, which makes it difficult to use a CBR. This is partially fixed by varying the quantization and therefore the quality and the problem is completely solved by using padding bits. Another strategy is to store the bit rate in a buffer and release the information with a constant bit rate. Method known as leacky bucket.

The opposite process is the variable bitrate: VBR. The VBR applies a non-uniform quantification unlike the CBR, so it takes into account whether the signal has areas with greater or lesser information density and therefore does not quantify the entire signal equally

Variable bit stream (VBR):

The bit rate is the bit rate per second consumed by an audio or video file. This compression method achieves a higher sound or video quality for a given file size, in contrast to CBR.

The same can be applied to videos. There are scenes in which the camera is fixed, there is little light and little movement. And there are other scenes where the camera moves, there are shots, explosions, etc. What the VBR would do in this case is save the bit rate of the slow scene to apply later to the fast scene and get the latter to look as good as possible.

Compatible PSP:

The format that the psp accepts is the mp4 container format specified as part of the ISO / IEC international MPEG-4 standard. It is used to store the audiovisual formats specified by ISO / IEC and the MPEG group (Moving Picture Experts Group) as well as other audiovisual formats available. It is typically used to store data in files for computers, to transmit audiovisual streams and, probably, in many other ways., But I recommend downloading a 3GP style converter031 program, which you configure it and pass it to the format ... I would advise you to get a memory stick of 512 mb, but if you can wait or you have saved money, I would buy a 1GB.

IPOD compatible:

the video format for ipod is MP4. But I recommend the limewire program which is much better. if you do not have it, I recommend it because if you download a video you do not need to convert it to ipod or psp format. you only look for the video you want and on the left are the types of formats are the mp3, mp4 and wmv, in this case you select mp4 because you want to pass it to an ipod. you select it and download it and send it to itunes and that's it. Not all mp4 videos in this program are useful.

If you want to go to the safe because you better download a program called YouTube Downloader, download the videos from that program and when you download it automatically send it to iTunes. also some videos do not work so you have to convert it to ipod version. As? good select the video and after you go to the top menu and click on advanced> then search to create ipod or iphone version (create an ipod or iphone version) and as click ahy, the itunes will convert it and then drag the new version to your ipod and ready to see it.

SVCD (Super Video CD):

was created by a consortium of large companies formed mainly by Sony, Philips and Matsushita with the intention of overcoming the quality of the VideoCD (along with the CVD is the one that comes closest in quality to the DVD). It is usually done to store around 30 minutes per CDR74. It is ideal for backup copies of camera recordings, both analog and digital.

DV:

The DV contains video and sound and through it, we can store more than 60 minutes of video. The sound is in a 16-bit PCM format very similar to the quality of a Compact Disc and the video has a very high compression factor, which takes up little space and saves the image quality.

DVD:

MPEG-1 or MPEG-2, but you have to convert the videos to VCD, SVCD or DVD.

HD:

Two formats of high definition came out: Muse Narrow and HD Mac, but the serious problem that these formats had was that the bandwidth (36MHz) that they needed to emit the signal of television was much greater than the one that allowed the analogical television . In Europe it was tried at all costs to be compatible with the PAL with the creation of a hybrid format D2-Mac, In Japan, however, ignored the compatibility with the PAL and the NTSC. In Japan it developed more, but in both places it ended up being an absolute failure.

Full 1080 :

the short name for a category of video modes. The number 1080 represents 1080 lines of vertical screen resolution, while the letter p means progressive scan and not interlaced. 1080p is considered an HDTV video mode. The term usually assumes a widescreen aspect ratio of 16: 9, involving a horizontal resolution of 1920 pixels and with frame resolution of 1920 × 1080 or exactly 2,073,600 pixels. The difference between 1080p and 1080i is that with the format p each frame is projected by all the lines progressively (better visualization, although only perceptible for the most sensitive view), while with the format i each frame is projected by half of the frames. lines (even or odd) alternately, or interlaced. 1080p is the highest resolution available to the consumer;

as "True High-Definition" (True High Definition) or "Full High-Definition".

Frames per second:

indicates the number of still images or frames displayed by a digital video per second.

Standard values of FPS:

Cartoon:

15 fps

Cinema :

24 fps.

TV or PAL video:

25 fps.

TV or NTSC video :

29.97 fps

Types of video files:

to. AVI

Original format of windows. It is the most widespread. It can be used without compression. Has a

layer of information for the video and another one for the audio.

b. MOV

Native Macintosh format. You need the Quicktime player. It's multiplatform, it's

say, it works for Windows, MAC-OS and Linux.

c. WMV

Video format created by Microsoft for your Windows Media player. Added to the video

information of the author and the management of digital rights in order to avoid piracy. He has

evolved into new digital systems and, currently, you can work on a new

format, the WMV-HD.

d. RV

Specialized format in online broadcast on the internet. You need the Real One player.

and. MPEG

Compression format with losses. Eliminates intermediate frames, similar to adjacent ones and

They provide little visual information.

F. MPEG-1

It is used in Video-CD resolution 352 x 240 pixels bit rate of 1150 kbit / s. Extension .mpg

g. MPEG-2

It is used in Super Video-CD, DVD and in high definition. The quality varies according to the

resolution and the bit rate that is used.

26 out of 40

Computer work Sound and digital video Jessica Cuji Chacon 4ºA

h. MPEG-4

It is used to convert the DIVX compressed files into AVI format. .mp4 extension

i. DIVX

It is a video compressor program. The file extension used is .avi. DIVX is software

propipetario that has been replaced by XDIV of free distribution. If our player

DVD supports MPEG- $ siginfica that supports the DIVX and XDIV formats.

j. FLV

It is the format of the movies made with Flash. Due to its good size / quality ratio, it

They have spread like video format on Youtube, Google Video and the like. It is necessary to have the

Flash Player installed on a web browser

k. CODEC:

In general, the different existing codecs are currently used to compress files of

video, audio and images, in order to achieve that they have a shorter length than their source

original, to allow them to be easier to handle and work in a

computer.

For this reason, when trying to play for example a video file in an AVI container, which has been

manipulated with the Xvid codec, it will be necessary to have that same codec on the computer,

that otherwise the reproduction will be impossible.

It should be mentioned that codecs are also commonly used to compress data flows

and signals, that is, to carry out radio and television broadcast over the Internet.

For the most part, multimedia files contain video, audio and reference data for the

synchronization of both, so it should be necessary to apply the appropriate codecs for

to be able to play a movie on our PC.

When using codecs to compress a multimedia file, you will generally get a result with

some loss of quality, since in order to reduce the size of the original source, there will be

a loss of information during the process.

However, there are also some types of codecs that do not report losses, such as FLAC and

MSU, which allow the reproduction of an audio or video file without losses when the file

it is encoded again.

However, in general, codecs are used that compress with some loss of

information, since the fundamental function of the use of codecs is to reduce significantly the

size of the files to facilitate their manipulation.

Usually, when a video file is transformed with codecs, a process is carried out

automatic that causes the codec to cut out part of the information regarding the image or sound

original, to then readjust it to a smaller space, and finally encode it.

Compression and decompression:

To be able to play a file that has been

compressed with some codec, it is imperative

[php-sp]

SMS Gateway - Use Your Phone as SMS Gateway

New Post has been published on https://intramate.com/php-scripts/sms-gateway-use-your-phone-as-sms-gateway/

SMS Gateway - Use Your Phone as SMS Gateway

LIVE PREVIEWGet it now for only $79

Turn your mobile phone into the SMS Gateway for your applications.

Features

Send SMS from your application developed using any programming language.

Send SMS with virtually no limit. You won’t be bound by SMS character limit (160 Characters).

Use CSV or Excel file containing numbers and messages in first two columns to send bulk messages.

Shows status of messages sent using SMS Gateway in Admin Panel.

Ability to receive messages in the Admin Panel and respond to them using a WebHook.

Ability to sign in using multiple Android devices to split messages between them when sending bulk messages.

Ability to create other users to let them use SMS Gateway from their mobile phones.

Send messages on schedule.

Send messages using any SIM programmatically or using Excel file.

Create contact lists and import contacts into them using Excel file.

Send message to contacts in a contacts list.

Ability to allow a contact to unsuscribe from the contacts list.

Add contacts or unsubcribe them from the list using the API.

If you want to try it out then register here. Follow the instruction you’ll receive in the email to get started.

To integrate into your application follow the guides on API page after logging in to the Admin Panel.

How it works!

1.) INSTALL ADMIN PANEL

You will receive Admin panel when you purchase SMS Gateway. Install it on your web hosting. It comes with installation script so it should be easy.

2.) INSTALL ANDROID APP

You need to download Android App from here. After installing it you can log in to it using your Admin panel URL and it’s credentials.

3.) READY TO SEND

Now when you send messages using API or excel file it will be first stored on your server with the ‘Pending’ status.

4.) READY TO PROCESS

After your server gets the messages it sends the notification to SMS Gateway app on your mobile. When the app gets the notification it downloads the messages for processing and set their status as ‘Queued’.

5.) SENT AND DONE

After each message is sent they get the status ‘Sent’ if it was sent successfully otherwise it will get ‘Failed’ status. SMS Gateway also checks for delivery of messages. If your mobile network is unable to deliver the message it will be marked as ‘Failed’ otherwise it will stay in ‘Sent’ status.

Server Requirements

Apache or Nginx

PHP 5.6 or above

MySQL

PHP Extensions

php_curl

php_zip

php_xml

php_mbstring

php_gd2 (if not compiled in)

It is recommended to use VPS Hosting for SMS Gateway but it should work perfectly fine on Shared Hosting too. If you decide to go with Shared Hosting make sure your host allows hosting of SMS Gateway application. Some hosts like HostGator and iPage don’t allow it so it is more likely that they will block the app.

Android Device Requirements

Android 5.0 or above.

Device with 3 GB or more RAM. It works on lower spec devices but you may experience degraded performance.

A device with Google Play Services. If your device has Google Play Store then it means it does have Google Play Services.

Note

There was a policy change from Google for all apps requiring SMS related permissions as you can see here. After March 9, 2019 this app won’t be available through Play Store. You will get all future updates notifications from CodeCanyon. You will need to install the APK file on your device to use the app. The app will function normally and its functionality won’t be affected from this move by Google.

Changelog

v5.1

New Features

Added ability to schedule messages.

v5.0.1

Fixes

Fixed an issue where normal users couldn’t remove the messages.

Fixed an issue that prevented the user from creating contacts list if other user had contacts list with same name.

Fixed an issue that caused duplicate unsubscribe text to be added when clicking on ‘Add Unsubscribe Link’ button.

Changes

Now using AJAX to submit the form that allows users to send message to contacts list.

v5.0

New Features

Create contact lists and import contacts into them using Excel file.

Send message to contacts in a contacts list.

Ability to allow a contact to unsuscribe from the contacts list.

Add contacts or unsubcribe them from the list using the API.

Changes

Now failed messages will show reason for failure. (Requires App Update)

Now message field on Send Message form will show how many messages will be used to send the message.

v4.0.3

Fixes

Fixed an issue that prevents assignment of next primary device after signing out from the Android app.

Fixed an issue that prevents assignment as primary device after login to the Android app even if there is no primary device exists.

Fixed an issue where a floating-point number was being considered as a valid mobile number.

Changes

Now exported excel will have a text formatting by default.

v4.0.2

Fixes

Fixed a critical issue in bulk sending functionality that caused some of the messages to be sent multiple times, sometimes neglecting others and sometimes from non-existence SIM on the device.

Changes

Now the application will set message status to “Delivered” if it is successful as per the Delivery Report.

Now non-Admin users are also allowed to remove their messages.

v4.0.1

Fixes

Fixed an issue where devices combo box on excel upload form doesn’t show all the available SIM cards.

New Features

Now received message will show receiver SIM.

v4.0

New Features

Added ability to send messages using any SIM via API or Excel file.

v3.1.1

Fixes

Fixed an issue where changing name and timezone from Device doesn’t affect the name and timezone on currently running PC session.

Fixed an issue where error wasn’t shown when login script was unable to remove the ‘install’ directory.

Fixed js and css path errors in installation script.

Fixed an issue where end date wasn’t showing the correct date on messages page if user’s timezone setting wasn’t same as database timezone.

Changes

Replaced Play Store URL from registration email with APK file URL.

Now the application uses locally hosted DataTables js file to improve performance.

Now localizing exported excel file column headers.

Now ignoring devices value in API if bad value is provided.

v3.1

New Features

Added option to turn off Delivery Reports.

v3.0.4

Fixes

Fixed an issue causing Excel export to ignore search parameters.

Fixed an issue where status wasn’t translated to primary language on messages page.

Changes

Now allows up to 60 seconds of delay between messages.

v3.0.3

Fixes

Added missing strings in the language file.

New Features

Added German language file.

v3.0.2

Changes

Now the API call will return date and time in ISO 8601 format.

Fixes

Fixed an issue where select all checkbox was still checked even after a successful operation.

v3.0.1

Fixes

Fixed an issue where The Unknown device wasn’t visible for non-admin users on messages page.

Fixed an issue where search didn’t work on messages page for non-admin users if there are no devices registered.

v3.0

Changes

Now API will return details of all the messages after sending them.

Now API supports GET requests.

Now messages page will show the total messages count for the search results.

Code and Performance Optimization.

New Features

Added ability to receive messages in Admin Panel and respond to it using a WebHook.

Added ability to change results per page in messages page.

Added new API page.

Added functionality to get messages using API.

v2.1

Changes

Now newline character in a message will be converted to br tag in messages page to show it properly.

Now users can resend messages with ‘Queued’ status. It is only recommended to do so if your message status stays in ‘Queued’ status for more than 24 hours even if message sending was finished on Android device.

New Features

Added ability to remove messages.

v2.0.1

Fixes

Fixed an issue causing single message form in Sender to show device doesn’t exist error even if it exists in the database. This only happened if your device ID is greater than or equal to 10.

Changes

Now users list in Manage Users page will show the infinite symbol in Max Devices when Maximum Devices allowed for the user is unlimited.

Now the application won’t rely on mbstring extension to send messages. Only Excel export and import requires mbstring extension enabled.

New Features

Added favicon.

v2.0

Fixes

Fixed an issue causing a fatal error in profile page when entering the wrong current password.

Fixed an issue that can prevent too many bulk messages from being sent.

Fixed an issue causing Failed messages to be marked as Pending.

New Features

Added support for multiple devices per user. The user can sign in to multiple devices and split messages between them.

Added support for paging to improve the performance of messages page.

Now user can change their name from profile settings.

Changes

Moved all the strings used in admin panel to a centralized location for easier localization.

Added new status named “Queued” and removed “Delivered” status to avoid confusion.

Now seconds data will be shown for sent time and delivered time on messages page.

Now delivery time will be reported from android app.

v1.0.6

New Features

Added missing phpdoc comments to make IDEs happy.

Added icon representing Delay field in the profile page.

Changes

Changed Firebase Cloud Message priority to high.

Now included php files will prevent access when opened directly.

Now Reset Password page will use the password reset link to reset the password.

Fixes

Fixed wrong use of constant in Manage Users page.

Fixed an issue in Manage users page causing 500 error for few users.

Fixed an issue causing a message to show outside browser window if a message is too big.

v1.0.5

New Features

Added ability to set the delay between messages.

Now messages will show delivery time near the status label.

Changes

Changed input field type to text in sender.php to allow + in the input.

Fixes

Fixed an issue causing wrong value to be saved in the database if there is $ in value.

Fixed an issue with search form layout in messages.php on lower resolution displays.

Fixed install script to use single quote in the config file to prevent issue when there is $ sign in database password.

Fixed an issue preventing checkbox from changing state when clicking select all if the user has interacted with a checkbox before.

1.0.4

Fixes

Fixed an issue where certain CSV files are not readable by excel uploader.

Fixed a critical issue preventing some of the messages from being sent when the user tries to send too many messages at once.

Fixed an issue preventing users from uploading multiple excel files.

1.0.3

Fixes

Fixed an issue where application can’t send messages in bulk if the total data size of bulk messages exceeds 4096 bytes.

Fixed an issue where application opens too many MySQL connections resulting in a crash.

Fixed an issue where installation script doesn’t work if installed MySQL version is below 5.6.

Fixed installation script to prevent it from saving changes to the database until every query executes successfully.

New Features

Added progress bar for ajax requests.

Added .htaccess file to prevent directory listing.

Changes

Now page won’t be reloaded after removing users instead only users table will be refreshed.

1.0.2

Fixes

Fixed DateTime input field line height issue in mobile application.

New Features

Added ability to remove users.

Changes

Moved Add New User form to Manage Users page.

Now if any message from multipart message fails then it will be considered as the failed message.

Now messages will be grouped according to users for Admin.

Now when a new user will be added it will use the date from defined timezone rather than server timezone.

1.0.1

Fixes

Fixed an issue where PHP Mailer class was declared twice using require a statement in reset-password.php causing a fatal error.

Fixed an error in API example in documentation causing it to not report error response correctly.

Fixed scrollbar in installation and login page.

New Features

Added jQuery Validation Plugin for better form validation.

Added server URL and android application URL to create user email.

Changes

Removed ’$’ from allowed characters in a random password generator to avoid problems.

LIVE PREVIEWGet it now for only $79