tree 6a66d50b1ea64887e785b9e4294cf43a76407db9
parent 593ef1b1a97f874f97fd8196f7608e1740556bf1
author Daniel Max Valenzuela <daniel.vt@samsung.com> 1573868471 -0800
committer Tom Finegan <tomfinegan@google.com> 1574728115 +0000

Obtain aom_image metadata on decode

- Added aom_img_get_metadata() function so user can obtain metadata
associated with an aom_image.
- Added aom_img_num_metadata() function so user can get the number of
metadata blocks associated with an aom_image.
- Added image metadata array to AV1Decoder so it can be obtained during
decoding process.
- Implemented read_metadata_itut_t35() to parse ITU-T T.35 metadata from
stream to metadata array.
- Added necessary tests for these new functions.
- Only ITU-T T.35 metadata decoding is implemented in this CL.

BUG=aomedia:2507

Change-Id: I4e3a54c2859cd968ef6e9f1e01a92a557e6e4d1d