diff options
Diffstat (limited to 'image/codecs')
| -rw-r--r-- | image/codecs/codec.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/image/codecs/codec.h b/image/codecs/codec.h index c84f3e3308..1b7a295e9d 100644 --- a/image/codecs/codec.h +++ b/image/codecs/codec.h @@ -33,8 +33,16 @@ class SeekableReadStream; namespace Image { /** - * An abstract representation of a video codec used for decoding - * video frames. + * An abstract representation of a image codec. + * + * Unlike ImageDecoder, the entire info for a frame may not be present + * within the stream. The codec may rely on the supporting container + * for parameters and can also rely on a previous (or future) frame. + * When decoding, the previous frame may not destroyed and could be + * maintained for use in the next one. + * + * An ImageDecoder can always be a Codec, but a Codec may not necessarily + * be able to be an ImageDecoder. * * Used in video: * - AVIDecoder |