Formats and quality guidance — page 2

Choose a reviewed answer for your problem. These guides explain available workflows and limitations; they do not grant access to restricted source content.

Showing 25–34 of 34 guides.

• Pixel aspect ratio: why stored dimensions can mislead

  Stored width divided by height describes the frame grid, but it describes the displayed picture only when pixels are square and no other display transform applies.

• ProRes versus ProRes RAW in an editing handoff

  ProRes and ProRes RAW are different receiving requirements, even when both arrive in a similarly named video file.

• Raw pictures need pixel layout, row stride and timing context

  Identify padded row storage when importing permitted raw frames without interpreting padding bytes as new picture pixels.

• Side-by-side stereo video versus a spherical panorama

  Stereoscopic video contains views intended for separate eyes, while spherical projection describes how a scene is mapped for viewing.

• Tone-mapped video: review highlights, gamut and SDR white

  Check an HDR-to-SDR or other tone-mapped derivative across highlights, saturated colors and ordinary white areas, retaining the source and actual receiving context.

• Track identifiers, stream order and program membership

  Identify the identifier used by each inspection and mapping interface before selecting the intended audio or subtitle resource.

• Video bitrate, file size, and quality are different measurements

  Video bitrate measures encoded video data per second. Higher bitrate can increase file size, but it does not by itself establish sharper pictures.

• Video color fields: primaries, transfer and matrix interpretation

  Inspect color primaries, transfer characteristics and matrix coefficients separately, then distinguish correcting a label from transforming the actual picture.

• VP9 video and WebM: check more than the extension

  VP9 is a video codec often encountered in WebM media; WebM is the container around the streams.

• When movie, stream and presentation durations disagree

  Identify differing media endpoints and inspect the intended presentation instead of announcing a missing download from one metadata field.