diff options
| -rw-r--r-- | doc/draft-valin-codec-prototype.xml | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/doc/draft-valin-codec-prototype.xml b/doc/draft-valin-codec-prototype.xml index 08679cde..99b64a2a 100644 --- a/doc/draft-valin-codec-prototype.xml +++ b/doc/draft-valin-codec-prototype.xml @@ -175,16 +175,18 @@ for a total of 14 configurations. There is thus a total of 30 configurations, so 5 bits are necessary (with 2 codes unused) to indicate the mode, frame size and sampling rate (MFS). This leaves 3 bits for the number of frames per packets (codes 0 to 7): <list style="symbols"> -<t>0-3: 1-4 frames in the packet, each with equal compressed size</t> -<t>4-6: 1-3 frames in the packet, with different compressed sizes, which need to be encoded</t> -<t>7: The first frame has this MFS, but others have different MFS. Compressed sizes need to be encoded.</t> +<t>0-2: 1-3 frames in the packet, each with equal compressed size</t> +<t>3: arbitrary number of frames in the packet, each with equal compressed size (size needs to be signalled)</t> +<t>4-5: 2-3 frames in the packet, with different compressed sizes, which need to be encoded (except the last one)</t> +<t>6: arbitrary number of frames in the packet, with different compressed sizes, each of which needs to be encoded</t> +<t>7: The first frame has this MFS, but others have different MFS. Compressed sizes need to be encoded.</t> </list> </t> <t> The compressed size of the frames (if needed) is indicated -- usually -- with one byte, with the following meaning: <list style="symbols"> -<t>0: No frame (DTX)</t> +<t>0: No frame (DTX or lost packet)</t> <t>1-251: Size of the frame in bytes</t> <t>252-255: A second byte is needed. The total size is (size[1]*4)+(size[0]%4)+252</t> </list> |