Opened 14 years ago

Closed 14 years ago

#668 closed enhancement (fixed)

Support for ATSC Closed Captions

Reported by: gtgj@… Owned by: danielk
Priority: minor Milestone: 0.20
Component: mythtv Version: head
Severity: medium Keywords:
Cc: Ticket locked: no

Description

This patch adds support for decoding Closed Captions in ATSC mpeg streams. These are the "old-style" EIA-608 captions which seem to be present in most ATSC broadcasts. This patch also includes decoding of Closed Captions (not subtitles) in DVD mpeg streams. Both caption-styles are contained in User Data mpeg packets. For the captions to be correctly displayed, the patch in Ticket #667 is required.

The patch is in two parts. The first part moves the existing CC decoding support from NuppelVideoRecorder? to a new CCDecoder class so that it can be shared with the frontend. The second part adds the actual support for ATSC and DVD decoding.

Attachments (2)

ccdecoder-r7892.patch (49.9 KB) - added by gtgj@… 14 years ago.
atsc_cc-r7892.patch (12.3 KB) - added by gtgj@… 14 years ago.
ATSC/DVD CC support (dependent on ccdecoder patch)

Download all attachments as: .zip

Change History (5)

Changed 14 years ago by gtgj@…

Attachment: ccdecoder-r7892.patch added

Changed 14 years ago by gtgj@…

Attachment: atsc_cc-r7892.patch added

ATSC/DVD CC support (dependent on ccdecoder patch)

comment:1 Changed 14 years ago by anonymous

Milestone: 0.20
Owner: changed from Isaac Richards to danielk
Version: head

comment:2 Changed 14 years ago by danielk

(In [7988]) References #668. Applies ccdecoder patch.

Breaks out portions of caption decoder from cc and NVP so that it can be used by a followup patch.

If you are using VBI CC/teletext pleae test where you are to see if this breaks anything.

comment:3 Changed 14 years ago by danielk

Resolution: fixed
Status: newclosed

(In [7989]) Closes #668.

Adds support for EIA-608 captions in ATSC/DVB streams.

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