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-rw-r--r--Documentation/video4linux/cx2341x/fw-encoder-api.txt8
1 files changed, 6 insertions, 2 deletions
diff --git a/Documentation/video4linux/cx2341x/fw-encoder-api.txt b/Documentation/video4linux/cx2341x/fw-encoder-api.txt
index e499cc07fe3d..242104ce5b61 100644
--- a/Documentation/video4linux/cx2341x/fw-encoder-api.txt
+++ b/Documentation/video4linux/cx2341x/fw-encoder-api.txt
@@ -680,7 +680,7 @@ Description
the value.
Param[0]
Command number:
- 1=set initial SCR value when starting encoding.
+ 1=set initial SCR value when starting encoding (works).
2=set quality mode (apparently some test setting).
3=setup advanced VIM protection handling (supposedly only for the cx23416
for raw YUV).
@@ -689,7 +689,11 @@ Param[0]
4=generate artificial PTS timestamps
5=USB flush mode
6=something to do with the quantization matrix
- 7=set navigation pack insertion for DVD
+ 7=set navigation pack insertion for DVD: adds 0xbf (private stream 2)
+ packets to the MPEG. The size of these packets is 2048 bytes (including
+ the header of 6 bytes: 0x000001bf + length). The payload is zeroed and
+ it is up to the application to fill them in. These packets are apparently
+ inserted every four frames.
8=enable scene change detection (seems to be a failure)
9=set history parameters of the video input module
10=set input field order of VIM
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