background image

Formatting video for local playback

Generated by Clearspace on 2008-05-18-05:00

4

MPEG \- Moving Picture Experts Group, develops standards for digital video and digital audio compression. The
MPEG standards are an evolving series, each designed for a different purpose.

MPG \- MPEG-1 file.

OGG \- Ogg Vorbis Codec Compressed WAV File. An open source patent-free audio compression format. Vorbis
files compress to a smaller size than MP3 files.

PCM \- Pulse code modulation. A digital scheme for transmitting analog data. Using PCM, it is possible to digitize all
forms of analog data, including full-motion video, voices, music, telemetry, and virtual reality (VR). QCIF \- Quarter
Common Intermediate Format. Video encoding format with 176 × 144 resolution.

QVGA \- Quarter Video Graphics Array. 320 × 240 resolution.

VBR \- Variable Bit Rate.

WAV \- Waveform Audio File.

WMA \- Windows Media Audio File.

WMV \- Windows Media Video File.

XviD \- A free and open source MPEG-4 video codec. XviD features MPEG-4 advanced simple profile features.

Trademarks and aknowledgements

Vegas™ is a trademark or registered trademark of Sony Corporation.

Microsoft® and Windows® are either registered trademarks or trademarks of Microsoft Corporation in the

United States and/or other countries.

Apple, QuickTime and Final Cut are a trademarks of Apple Computer, Inc., registered in the U.S. and other

countries.

Premiere™, After Effects™ and Audition™ are trademarks or registered trademarks of Adobe Systems

Incorporated.

Nero is a registered trademark of Nero AG.

3GPP is a trademark or registered trademark of ETSI.

Other product and company names mentioned herein may be the trademarks of their respective owners.

{*}Components of digital multimedia video{*}

Digital multimedia video generally consists of two major elements; a video track, with an accompanying audio track.
These tracks or components of the video are termed data streams. Although typically there is one data stream for
video and another for audio, it is also possible for more than two data streams to be present. An example of this
is the commentary feature found on many DVDs, where the second of two audio data streams can be chosen to
accompany the video stream.

Содержание D750

Страница 1: ...competence required to follow this document extends only to basic computer skills as all concepts are fully explained Prior experience with editing or formatting digital video is advantageous Sony Ericsson mobile phones that are covered by this document Generic names series Sony Ericsson Mobile Phones K800 K800i K800c K800a K790 K790i K790c K790a K750 K750i K750c D750 K610 K610im K610i K610c K618i...

Страница 2: ... track up to the point just before distortion or clipping will occur Bit Rate The number of bits used to compress a data stream typically measured in kilobits per second kbps Codec COmpressor DECompressor an algorithm that compresses and decompresses data streams Container The package that video and audio streams are placed in to ensure synchronised playback Data Stream The encoded video data Deco...

Страница 3: ... as MPEG 4 or H 263 and audio streams as AMR NB or AAC LC formats 3GPP 3rd Generation Partnership Project 3ivx A commercial video codec suite that allows the creation of MPEG 4 compliant data streams AAC Advanced Audio Coding AAC LC Advanced Audio Coding Low Complexity AC3 Audio File Format AIFF Audio Interchange File AMR Adaptive Multi Rate NB NarrowBand WB WideBand AVI Audio Video Interleave Con...

Страница 4: ...ofile features Trademarks and aknowledgements Vegas is a trademark or registered trademark of Sony Corporation Microsoft and Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and or other countries Apple QuickTime and Final Cut are a trademarks of Apple Computer Inc registered in the U S and other countries Premiere After Effects and Audition are ...

Страница 5: ...er of channels present in the audio A single channel is a mono recording while two channels afford stereo sound Increasing channels further to 4 or 5 allows fully directional surround sound for example 5 1 surround sound uses 5 channels in a digital audio stream Compression To reduce storage requirements and improve portability data streams in digital video are usually compressed Each stream is pa...

Страница 6: ...compression with AAC compression for audio Similarly WMV files are Advanced Systems Format ASF containers using WMV video streams and WMA audio streams AVI files are Audio Video Interleave containers that use Video For Windows compatible codecs for video streams and generally WAV or MP3 audio streams Formatting video for Sony Ericsson phones This section contains specific details and recommendatio...

Страница 7: ...sson phones only support level 0 With some customisation of the suggested values Sony Ericsson phones can also support modified levels up to level 3 There are many implementations of the MPEG 4 visual codec with quite extreme differences in encoding quality Available MPEG 4 codecs include DivX XviD 3ivx Apple MPEG 4 Nero MPEG 4 and many standard implementations found in various video editing softw...

Страница 8: ... 15 15 Bit rate kbps 64 64 Optimal video XviD MPEG 4 Visual Simple Modified Level 2 XviD MPEG 4 Visual Simple Modified Level 3 Video resolution 176x144 QCIF 320x240 QVGA Frame rate fps 20 25 Bit rate kbps 140 300 Basic audio LC AAC LC AAC Channels 2 2 Sample rate KHz 44 1 48 44 1 48 Bit rate kbps 64 64 Optimal audio Apple Nero LC AAC Apple Nero LC AAC Channels 2 2 Sample rate KHz 44 1 48 44 1 48 B...

Страница 9: ...n MP4 container it is recommended to output multimedia video in the MOV format The MOV format allows the multimedia video to be easily opened by Quicktime Pro Other considerations The following is general advice to achieve better results when formatting multimedia video for Sony Ericsson phones Sony Ericsson phone screens have a 4 3 aspect ratio The visual resolution of the source media may be of ...

Страница 10: ...solution and aspect ratio in order to address the issues of correcting them within this example Note Please consult the relevant licenses for any software before using it for commercial and or personal purposes Software Required software The following software is needed to complete this tutorial Microsoft Windows 2000 or Microsoft Windows XP as operating system Make sure the latest service pack is...

Страница 11: ...h 16 4 Click the Ok button to create the new project Importing the source video and formatting track properties 1 Return to the menu and select File Import Media 2 Browse to your working directory and open the SEexample avi file 3 Select SEexample avi in the Project Media window and drag it to the track list the empty panel on the left above the Project Media window The video and audio tracks with...

Страница 12: ...t or press ctrl e The Save exported file as dialog will appear 3 Set the Export option to Movie to MPEG 4 4 Now click the Options button and the MPEG 4 Export Settings dialog will appear 5 Set the File Format option to MP4 6 Ensure the topmost drop down menu is set to Video and set the following Video Format MPEG 4 Improved Data Rate 140 kbits sec Image Size Current Frame Rate Current Key Frame Ev...

Страница 13: ...ality at which the multimedia video content is delivered Those with no prior experience of editing or formatting digital multimedia video will hopefully find the background information sufficiently enlightening such that they can understand the more specific requirements of Sony Ericsson phones and feel confident about the task of formatting multimedia video for them Software developers can access...

Отзывы: