As the number and types of viewing devices continues to grow, video formats for new viewing platforms are being developed and updated at a rapid pace. Few content owners, service providers and telecom operators or enterprises have the in-house hardware and software—or the expertise to keep them current–needed to ensure that their video can be viewed on all popular platforms.

Cloud-based NSA encoding and transcoding services enable you to deliver pristine HD and SD content to any device, without concern about upgrading, updating or adding encoding or transcoding equipment as formats and platforms evolve. Adaptive bit rate (ABR) transcoding and encoding ensures that all content—live, playlist or VOD– is compatible with all formats, CODECs and screens including TVs, set-top boxes, PCs and Macs, gaming consoles, smart phones and tablets.

The NSA cloud-based content preparation suite can encode and transcode video from the following formats:

List of the supported video codecs

Video codec flv: flv, libx264, vp6
fl9, mpegts: libx264
wmv, zune: wmv2 msmpeg4, libx264
3gp, android: h263, mpeg4 libx264
m4v: mpeg4
mp4, ipod, iphone, ipad, appletv, psp: mpeg4, libx264
ogg: libtheora
webm: libvpx
mp3, wma: none
mpeg2: mpeg2video

List of the supported audio codecs

Audio codec mp3: libmp3lame
m4a: libfaac
flv: libmp3lame, libfaac
fl9, mp4, m4v, ipod, iphone, ipad, appletv, psp: libaac
wmv, wma, zune: wmav2, libmp3lame
ogg, webm: libvorbis
3gp: libamr_nb
android: libamr_nb, libfaac
mpeg2: pcm_s16be, pcm_s16le
mpegts: ac3

Audio bitrates

Audio bitrate Nk: where N is any non-zero integer
3gp: 4.75k, 5.15k, 5.9k, 6.7k, 7.4k, 7,95k, 10.2k, 12.2k
flv, wmv, mp3, wma, zune32k, 40k, 48k, 56k, 64k, 80k, 96k, 112k, 128k, 144k, 160k, 192k, 224k, 256k, 320k
ogg, webm: 45k, 64k, 80k, 96k, 112k, 128k, 160k, 192k, 224k, 256k, 320k, 500k 

Audio sample rate

Audio sampling frequency (Hz) All: any non-zero integer
3gp: 8000
flv, mp3: 11025, 22050, 44100
ogg, webm: 16000, 32000, 44100, 22050, 11025, 192000
wmv, wma, zune: 11025, 22050, 32000, 44100, 48000
mpeg2: 44100, 48000

NSA encodes and transcodes video content into a wide range of formats for the following delivery models:

Feature Formats and Protocols
Live streaming RTMP, RTSP, HTTP (HLS, HDS, smooth streaming), HTML5
VOD streaming RTMP, RTSP, progressive download, HTTP (HLS, HDS, Smooth Streaming), HTML 5
High definition streaming H.264, high profile, 720P, 1080P at 24,25 and 30 FPS
Multiple bit rates For Flash, progressive download, adaptive and dynamic streaming

Handles up to 16 simultaneous bitrates and resolutions per asset in live streaming or VOD

Video to be transcoded may be dropped onto the NSA CDN using a media management system or uploaded via FTP. An API callback updates the service provider’s or broadcaster’s back end when files are transcoded and ready for playback.

Streaming in Multiple Languages

Multi-track audio channel selection simplifies streaming in multiple languages. Choose the languages your users want from source streams with multiple audio tracks and deliver them