Video upload and transcoding support

You can upload video content in Google Ad Manager when you create a VAST creative for a line item or for an advertiser. The following video formats are supported:

  • WebM files - Vp8 video codec and Vorbis Audio codecs
  • MPEG4, 3GPP and MOV files - Typically supporting h264, mpeg4 video codecs, and AAC audio codec
  • AVI - Many cameras output this format - typically the video codec is MJPEG and audio is PCM
  • MPEGPS - Typically supporting MPEG2 video codec and MP2 audio
  • WMV
  • HLS - (HTTP Live Streaming) Adaptive bitrate standard for live stream video events

Ad Manager allows uploads of video files up to 512 MB.*

During the transcode process, Ad Manager normalizes audio to industry standard levels. For Ad Manager hosted creatives, mono, stereo, 5.1, and 7.1 audio inputs are supported.

Unsupported audio inputs will fail transcoding.

Once a video file is uploaded, Ad Manager transcodes it into as many as nine formats and sizes, depending on the format and resolution of the uploaded video. Transcoded versions are the same or smaller resolutions than the uploaded version.

You can refer to the table and examples below for more information on transcoding.

* Applies to advanced and basic Ad Manager 360 accounts. See video feature availability for all publisher contracts.

Due to the nature of transcoding, the following may not necessarily be the same as the original:

  • Video length: If you rely on an exact video length, use the length after transcoding. Video files with a duration shorter than 0.3 seconds are considered invalid and are not transcoded.
  • Video output bitrate: This may be lower than the uploaded asset. When the uploaded asset is less complex (for example, contains a lot of black), encoding the data may require less bytes.

When transcoding is complete, you can remove individual transcodes using the controls in the "Active" column in the Settings tab of the creative.

Container/video codec Output resolution range Maximum video+audio bitrate (kbps)
3GPP/MPEG-4 320x240 192+64
HLS 256x144 to 1920x1080
5 second segments
Max video: 4 mbps
Max audio: 256 kbps
3GPP/MPEG-4 176x144 56 + 24
MP4/H.264 640x360 640+96
MP4/H.264 1280x720 2000+128
MP4/H.264 1920x1080 3500+128
WebM/VP8 480x360 to 854x480 360+96
WebM/VP8 1280x720 2000+128

Example 1

Suppose you upload a 720p (1280x720) video. Ad Manager would transcode the video into all of the above combinations except for 1920x1080 MP4, since that's larger than the original size of the video.

Container/Video codec Output resolution
3GPP/MPEG-4 320x240
3GPP/MPEG-4 176x144
MP4/H.264 640x360
MP4/H.264 1280x720
WebM/VP8 854x480
WebM/VP8 1280x720
HLS 256x144

Example 2

If you were to upload a 640x360 video, you’d get the following output:

Container/Video codec Output resolution
3GPP/MPEG-4 320x240
3GPP/MPEG-4 176x144
MP4/H.264 640x360
WebM/VP8 640x360
HLS 256x144
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