libavformat/mpegtsenc: allow to set service_type in sdt

[dhead666]

This adds an option to set the service type in mpegts as define in ETSI 300 468.
I've been using this to pipe internet radio stream (originally as HLS/m3u8) from ffmpeg to tvheadend, when the service type set right tvheadend recognize the mpegts stream as a radio channel.
This have been test against master.
linuxstb from the hts freenode channel originally written the patch and allowed me to push it upstream.

[TimothyGu]

It should be 0x01 to be consistent with the min/max.

[dhead666]

fixed and rebased.
I forgot to add this fix https://trac.ffmpeg.org/ticket/4118

[TimothyGu]

@dhead666 It would be cool if you can send the patch to the ffmpeg developers' mailing list as not many people are following our GitHub pull requests.

1. Subscribe to the mailing list: http://lists.ffmpeg.org/mailman/listinfo/ffmpeg-devel

2. Check out the branch, and

   git format-patch -1
   

3. Send your patch as an attachment to ffmpeg-devel@ffmpeg.org.

Also if you know how to use git format-patch that would be even better.

Thanks.

[dhead666]

@TimothyGu

Thanks, I sent the patch with git send-mail (well without description, first time using this method) so I'm closing the PR here.

[TimothyGu]

The description in git send-email is the commit message, and when the maintainer uses git am < patch.patch the commit message will automatically be committed.

If you would like to attach something that is not to go into the commit message, do it like this: (with git send-email -1 --annotate)

From 2d59c1ede5885664561b40ca78ae3b8f8f8987c0 Mon Sep 17 00:00:00 2001
From: your name <emai@example.com>
Date: Wed, 28 Jan 2015 19:19:03 -0800
Subject: [PATCH] My patch

COmmitt message herrrre.
---

Message that won't be committed.

 doc/muxers.texi         | 3 +++
 libavformat/mpegtsenc.c | 6 +++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/doc/muxers.texi b/doc/muxers.texi
index 7ca6409..52a9cd4 100644
--- a/doc/muxers.texi
+++ b/doc/muxers.texi
@@ -690,6 +690,9 @@ Set the transport_stream_id (default 0x0001). This identifies a
 transponder in DVB.
 @item -mpegts_service_id @var{number}
 Set the service_id (default 0x0001) also known as program in DVB.
+@item -mpegts_service_type @var{number}
+Set the program service_type (default 0x01 - TV).  For the list of valid
+values see ETSI 300 468.
 @item -mpegts_pmt_start_pid @var{number}
 Set the first PID for PMT (default 0x1000, max 0x1f00).
 @item -mpegts_start_pid @var{number}

[dhead666]

@TimothyGu thanks you very much for your help :)