huangdarwin 371c5c1b2e Transformer GL: Split out ScaleToFit and Advanced GlFrameProcessors
* Move auto-adjustments for transformation matrices from the
  VideoTranscodingSamplePipeline constructor to the new
  ScaleToFitFrameProcessor.
* Add GlFrameProcessor#getOutputDimensions() to allow for GlFrameProcessors with
  different input and output dimensions. This is a prerequisite for
  Presentation.
* Tested with unit tests (and manually just in case).
* A follow up CL will implement change the FrameProcessor input to be scale and
  rotate values as requested by the user. This was kept out of this CL to
  reduce CL review size. Presentation will also be implemented in a follow up
  CL.

PiperOrigin-RevId: 434774854
2022-03-15 16:36:52 +00:00
..
2021-10-26 14:08:21 +01:00

Transformer module

Provides functionality for transforming media files.

Getting the module

The easiest way to get the module is to add it as a gradle dependency:

implementation 'com.google.android.exoplayer:exoplayer-transformer:2.X.X'

where 2.X.X is the version, which must match the version of the other media modules being used.

Alternatively, you can clone this GitHub project and depend on the module locally. Instructions for doing this can be found in the top level README.

Using the module

Use of the Transformer module is documented in the developer guide.