[FFmpeg-devel] [PATCH 1/3] closed caption decoder: accept and decode a new codec type of 'raw 608 byte pairs'

Michael Niedermayer michael at niedermayer.cc
Tue Apr 28 20:32:22 EEST 2020 

On Tue, Apr 28, 2020 at 12:15:19AM -0600, Roger Pack wrote:
> I needed this in order to be able to parse raw analog TV closed
> caption byte pairs (analog line 21 CC's).

>  configure                 |    1 
>  libavcodec/Makefile       |    2 
>  libavcodec/allcodecs.c    |    1 
>  libavcodec/ccaption_dec.c |  117 +++++++++++++++++++++++++++++++---------------
>  libavcodec/codec_desc.c   |    7 ++
>  libavcodec/codec_id.h     |    1 
>  libavcodec/version.h      |    4 -
>  7 files changed, 93 insertions(+), 40 deletions(-)
> c9153590e5f167e41910d867639eb887164e28d2  0001-closed-caption-decoder-accept-and-decode-a-new-codec.patch
> From bf29fe5330e83e37cf064b18918185c6b00d9b9f Mon Sep 17 00:00:00 2001
> From: rogerdpack <rogerpack2005 at gmail.com>
> Date: Tue, 28 Apr 2020 05:15:15 +0000
> Subject: [PATCH 1/3] closed caption decoder: accept and decode a new codec
>  type of 'raw 608 byte pairs'

breaks fate

TEST    sub-cc-realtime
--- ./tests/ref/fate/sub-cc-realtime	2020-04-28 15:43:10.506887112 +0200
+++ tests/data/fate/sub-cc-realtime	2020-04-28 19:31:37.164407976 +0200
@@ -1,42 +0,0 @@
-[Script Info]
-; Script generated by FFmpeg/Lavc
-ScriptType: v4.00+
-PlayResX: 384
-PlayResY: 288
-
-[V4+ Styles]
-Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding
-Style: Default,Monospace,16,&Hffffff,&Hffffff,&H0,&H0,0,0,0,0,100,100,0,0,3,1,0,2,10,10,10,0
-
-[Events]
-Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
-Dialogue: 0,0:00:14.14,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,44)}(
-Dialogue: 0,0:00:15.47,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,44)}({\i1} in
-Dialogue: 0,0:00:15.92,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,44)}({\i1} inau
-Dialogue: 0,0:00:16.36,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,44)}({\i1} inaudi
-Dialogue: 0,0:00:16.81,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,44)}({\i1} inaudibl
-Dialogue: 0,0:00:17.25,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,44)}({\i1} inaudible 
-Dialogue: 0,0:00:17.70,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,44)}({\i1} inaudible ra
-Dialogue: 0,0:00:18.14,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,44)}({\i1} inaudible radi
-Dialogue: 0,0:00:18.59,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,44)}({\i1} inaudible radio 
-Dialogue: 0,0:00:19.03,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,44)}({\i1} inaudible radio ch
-Dialogue: 0,0:00:19.48,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,44)}({\i1} inaudible radio chat
-Dialogue: 0,0:00:19.92,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,44)}({\i1} inaudible radio chatte
-Dialogue: 0,0:00:20.36,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,44)}({\i1} inaudible radio chatter
-Dialogue: 0,0:00:21.70,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,44)}({\i1} inaudible radio chatter{\i0} )
-Dialogue: 0,0:00:42.61,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,28)}({\i1} inaudible radio chatter{\i0} )\N{\an7}{\pos(38,44)}>>
-Dialogue: 0,0:00:43.05,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,28)}({\i1} inaudible radio chatter{\i0} )\N{\an7}{\pos(38,44)}>> S
-Dialogue: 0,0:00:43.50,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,28)}({\i1} inaudible radio chatter{\i0} )\N{\an7}{\pos(38,44)}>> Saf
-Dialogue: 0,0:00:43.94,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,28)}({\i1} inaudible radio chatter{\i0} )\N{\an7}{\pos(38,44)}>> Safet
-Dialogue: 0,0:00:44.39,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,28)}({\i1} inaudible radio chatter{\i0} )\N{\an7}{\pos(38,44)}>> Safety 
-Dialogue: 0,0:00:44.83,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,28)}({\i1} inaudible radio chatter{\i0} )\N{\an7}{\pos(38,44)}>> Safety re
-Dialogue: 0,0:00:45.28,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,28)}({\i1} inaudible radio chatter{\i0} )\N{\an7}{\pos(38,44)}>> Safety rema
-Dialogue: 0,0:00:45.72,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,28)}({\i1} inaudible radio chatter{\i0} )\N{\an7}{\pos(38,44)}>> Safety remain
-Dialogue: 0,0:00:46.17,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,28)}({\i1} inaudible radio chatter{\i0} )\N{\an7}{\pos(38,44)}>> Safety remains 
-Dialogue: 0,0:00:46.61,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,28)}({\i1} inaudible radio chatter{\i0} )\N{\an7}{\pos(38,44)}>> Safety remains ou
-Dialogue: 0,0:00:47.06,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,28)}({\i1} inaudible radio chatter{\i0} )\N{\an7}{\pos(38,44)}>> Safety remains our 
-Dialogue: 0,0:00:47.50,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,28)}({\i1} inaudible radio chatter{\i0} )\N{\an7}{\pos(38,44)}>> Safety remains our nu
-Dialogue: 0,0:00:47.95,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,28)}({\i1} inaudible radio chatter{\i0} )\N{\an7}{\pos(38,44)}>> Safety remains our numb
-Dialogue: 0,0:00:48.39,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,28)}({\i1} inaudible radio chatter{\i0} )\N{\an7}{\pos(38,44)}>> Safety remains our number
-Dialogue: 0,0:00:48.84,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,28)}({\i1} inaudible radio chatter{\i0} )\N{\an7}{\pos(38,44)}>> Safety remains our number o
-Dialogue: 0,0:00:49.28,9:59:59.99,Default,,0,0,0,,{\an7}{\pos(38,28)}({\i1} inaudible radio chatter{\i0} )\N{\an7}{\pos(38,44)}>> Safety remains our number one
Test sub-cc-realtime failed. Look at tests/data/fate/sub-cc-realtime.err for details.
tests/Makefile:254: recipe for target 'fate-sub-cc-realtime' failed
make: *** [fate-sub-cc-realtime] Error 1

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Dictatorship: All citizens are under surveillance, all their steps and
actions recorded, for the politicians to enforce control.
Democracy: All politicians are under surveillance, all their steps and
actions recorded, for the citizens to enforce control.
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