diff options
| author | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-08-30 05:15:40 -0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-09-05 05:50:21 -0400 |
| commit | 89aba6adc16533f3c1faf404765e0e45b323e7ae (patch) | |
| tree | 9999379a25f0dfffc1f5962edf5b17c36a39b86e /Documentation/media/uapi | |
| parent | 3256b36ea36525945d8575c0100752819a309aaa (diff) | |
media: dvb/intro: use the term Digital TV to refer to the system
On several places at the introduction, a digital TV board and its
kernel support is called as DVB. The reason is simple: by the
time the document was written, there were no other digital TV
standards :-)
Modernize the specs by referring to them as Digital TV.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'Documentation/media/uapi')
| -rw-r--r-- | Documentation/media/uapi/dvb/intro.rst | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/Documentation/media/uapi/dvb/intro.rst b/Documentation/media/uapi/dvb/intro.rst index 20bd7aec2665..de432ffcba50 100644 --- a/Documentation/media/uapi/dvb/intro.rst +++ b/Documentation/media/uapi/dvb/intro.rst @@ -13,7 +13,7 @@ What you need to know ===================== The reader of this document is required to have some knowledge in the -area of digital video broadcasting (DVB) and should be familiar with +area of digital video broadcasting (Digital TV) and should be familiar with part I of the MPEG2 specification ISO/IEC 13818 (aka ITU-T H.222), i.e you should know what a program/transport stream (PS/TS) is and what is meant by a packetized elementary stream (PES) or an I-frame. @@ -59,14 +59,14 @@ Overview :alt: dvbstb.svg :align: center - Components of a DVB card/STB + Components of a Digital TV card/STB -A DVB PCI card or DVB set-top-box (STB) usually consists of the +A Digital TV card or set-top-box (STB) usually consists of the following main hardware components: -- Frontend consisting of tuner and DVB demodulator +- Frontend consisting of tuner and digital TV demodulator - Here the raw signal reaches the DVB hardware from a satellite dish or + Here the raw signal reaches the digital TV hardware from a satellite dish or antenna or directly from cable. The frontend down-converts and demodulates this signal into an MPEG transport stream (TS). In case of a satellite frontend, this includes a facility for satellite @@ -105,10 +105,10 @@ conditional access hardware. .. _dvb_devices: -Linux DVB Devices -================= +Linux Digital TV Devices +======================== -The Linux DVB API lets you control these hardware components through +The Linux Digital TV API lets you control these hardware components through currently six Unix-style character devices for video, audio, frontend, demux, CA and IP-over-DVB networking. The video and audio devices control the MPEG2 decoder hardware, the frontend device the tuner and @@ -137,8 +137,8 @@ individual devices are called: - ``/dev/dvb/adapterN/caM``, -where ``N`` enumerates the DVB PCI cards in a system starting from 0, and ``M`` -enumerates the devices of each type within each adapter, starting +where ``N`` enumerates the Digital TV cards in a system starting from 0, and +``M`` enumerates the devices of each type within each adapter, starting from 0, too. We will omit the “``/dev/dvb/adapterN/``\ ” in the further discussion of these devices. @@ -151,8 +151,8 @@ devices are described in the following chapters. API include files ================= -For each of the DVB devices a corresponding include file exists. The DVB -API include files should be included in application sources with a +For each of the Digital TV devices a corresponding include file exists. The +Digital TV API include files should be included in application sources with a partial path like: |