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dvbsrc: clarify units for freq and symbol-rate

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Reynaldo H. Verdejo Pinochet 2014-07-08 19:18:48 -04:00
parent 01e7e36217
commit d17203d26a
1 changed files with 7 additions and 5 deletions
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12
sys/dvb/gstdvbsrc.c
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@ -28,13 +28,13 @@
* <title>Example launch line</title> * <title>Example launch line</title>
* |[ * |[
* gst-launch dvbsrc modulation="QAM 64" trans-mode=8k bandwidth=8 frequency=514000000 code-rate-lp=AUTO code-rate-hp=2/3 guard=4 hierarchy=0 ! mpegtsdemux name=demux ! queue max-size-buffers=0 max-size-time=0 ! mpeg2dec ! xvimagesink demux. ! queue max-size-buffers=0 max-size-time=0 ! mad ! alsasink * gst-launch dvbsrc modulation="QAM 64" trans-mode=8k bandwidth=8 frequency=514000000 code-rate-lp=AUTO code-rate-hp=2/3 guard=4 hierarchy=0 ! mpegtsdemux name=demux ! queue max-size-buffers=0 max-size-time=0 ! mpeg2dec ! xvimagesink demux. ! queue max-size-buffers=0 max-size-time=0 ! mad ! alsasink
* ]| Captures a full transport stream from dvb card 0 that is a DVB-T card at tuned frequency 514000000 with other parameters as seen in the pipeline and renders the first tv program on the transport stream. * ]| Captures a full transport stream from dvb card 0 that is a DVB-T card at tuned frequency 514000000 Hz with other parameters as seen in the pipeline and renders the first tv program on the transport stream.
* |[ * |[
* gst-launch dvbsrc modulation="QAM 64" trans-mode=8k bandwidth=8 frequency=514000000 code-rate-lp=AUTO code-rate-hp=2/3 guard=4 hierarchy=0 pids=100:256:257 ! mpegtsdemux name=demux ! queue max-size-buffers=0 max-size-time=0 ! mpeg2dec ! xvimagesink demux. ! queue max-size-buffers=0 max-size-time=0 ! mad ! alsasink * gst-launch dvbsrc modulation="QAM 64" trans-mode=8k bandwidth=8 frequency=514000000 code-rate-lp=AUTO code-rate-hp=2/3 guard=4 hierarchy=0 pids=100:256:257 ! mpegtsdemux name=demux ! queue max-size-buffers=0 max-size-time=0 ! mpeg2dec ! xvimagesink demux. ! queue max-size-buffers=0 max-size-time=0 ! mad ! alsasink
* ]| Captures and renders a transport stream from dvb card 0 that is a DVB-T card for a program at tuned frequency 514000000 with PMT pid 100 and elementary stream pids of 256, 257 with other parameters as seen in the pipeline. * ]| Captures and renders a transport stream from dvb card 0 that is a DVB-T card for a program at tuned frequency 514000000 Hz with PMT pid 100 and elementary stream pids of 256, 257 with other parameters as seen in the pipeline.
* |[ * |[
* gst-launch dvbsrc polarity="h" frequency=11302000 symbol-rate=27500 diseqc-source=0 pids=50:102:103 ! mpegtsdemux name=demux ! queue max-size-buffers=0 max-size-time=0 ! mpeg2dec ! xvimagesink demux. ! queue max-size-buffers=0 max-size-time=0 ! mad ! alsasink * gst-launch dvbsrc polarity="h" frequency=11302000 symbol-rate=27500 diseqc-source=0 pids=50:102:103 ! mpegtsdemux name=demux ! queue max-size-buffers=0 max-size-time=0 ! mpeg2dec ! xvimagesink demux. ! queue max-size-buffers=0 max-size-time=0 ! mad ! alsasink
* ]| Captures and renders a transport stream from dvb card 0 that is a DVB-S card for a program at tuned frequency 11302000 Hz, symbol rate of 27500 kHz with PMT pid of 50 and elementary stream pids of 102 and 103. * ]| Captures and renders a transport stream from dvb card 0 that is a DVB-S card for a program at tuned frequency 11302000 kHz, symbol rate of 27500 kBd (kilo bauds with PMT pid of 50 and elementary stream pids of 102 and 103.
* |[ * |[
gst-launch dvbsrc frequency=515142857 guard=16 trans-mode="8k" isdbt-layer-enabled=7 isdbt-partial-reception=1 isdbt-sound-broadcasting=0 isdbt-sb-subchannel-id=0 isdbt-sb-segment-idx=0 isdbt-sb-segment-count=0 isdbt-layera-fec="2/3" isdbt-layera-modulation="QPSK" isdbt-layera-segment-count=1 isdbt-layera-time-interleaving=4 isdbt-layerb-fec="3/4" isdbt-layerb-modulation="qam-64" isdbt-layerb-segment-count=12 isdbt-layerb-time-interleaving=2 isdbt-layerc-fec="1/2" isdbt-layerc-modulation="qam-64" isdbt-layerc-segment-count=0 isdbt-layerc-time-interleaving=0 delsys=8 ! tsdemux name=d ! "video/x-h264" ! h264parse ! queue ! avdec_h264 ! videoconvert ! queue ! autovideosink gst-launch dvbsrc frequency=515142857 guard=16 trans-mode="8k" isdbt-layer-enabled=7 isdbt-partial-reception=1 isdbt-sound-broadcasting=0 isdbt-sb-subchannel-id=0 isdbt-sb-segment-idx=0 isdbt-sb-segment-count=0 isdbt-layera-fec="2/3" isdbt-layera-modulation="QPSK" isdbt-layera-segment-count=1 isdbt-layera-time-interleaving=4 isdbt-layerb-fec="3/4" isdbt-layerb-modulation="qam-64" isdbt-layerb-segment-count=12 isdbt-layerb-time-interleaving=2 isdbt-layerc-fec="1/2" isdbt-layerc-modulation="qam-64" isdbt-layerc-segment-count=0 isdbt-layerc-time-interleaving=0 delsys=8 ! tsdemux name=d ! "video/x-h264" ! h264parse ! queue ! avdec_h264 ! videoconvert ! queue ! autovideosink
* ]| Captures and renders the video track of Tv Paraíba HD (Globo affiliate) in Campina Grande (Brasil). This is an ISDB-T (ISDB-Tb) broadcast. * ]| Captures and renders the video track of Tv Paraíba HD (Globo affiliate) in Campina Grande (Brasil). This is an ISDB-T (ISDB-Tb) broadcast.
@ -593,7 +593,9 @@ gst_dvbsrc_class_init (GstDvbSrcClass * klass)
0, 16, DEFAULT_FRONTEND, G_PARAM_READWRITE)); 0, 16, DEFAULT_FRONTEND, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_DVBSRC_FREQUENCY, g_object_class_install_property (gobject_class, ARG_DVBSRC_FREQUENCY,
g_param_spec_uint ("frequency", "frequency", "Frequency", g_param_spec_uint ("frequency", "Center frequency",
"Center frequency to tune into. Measured in kHz for the satellite "
"distribution standars and Hz for all the rest",
0, G_MAXUINT, DEFAULT_FREQUENCY, G_PARAM_READWRITE)); 0, G_MAXUINT, DEFAULT_FREQUENCY, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_DVBSRC_POLARITY, g_object_class_install_property (gobject_class, ARG_DVBSRC_POLARITY,
@ -609,7 +611,7 @@ gst_dvbsrc_class_init (GstDvbSrcClass * klass)
g_object_class_install_property (gobject_class, ARG_DVBSRC_SYM_RATE, g_object_class_install_property (gobject_class, ARG_DVBSRC_SYM_RATE,
g_param_spec_uint ("symbol-rate", g_param_spec_uint ("symbol-rate",
"symbol rate", "symbol rate",
"(DVB-S/S2, DVB-C) Symbol rate in bauds", "(DVB-S/S2, DVB-C) Symbol rate in kBd (kilo bauds)",
0, G_MAXUINT, DEFAULT_SYMBOL_RATE, G_PARAM_READWRITE)); 0, G_MAXUINT, DEFAULT_SYMBOL_RATE, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_DVBSRC_TUNE, g_object_class_install_property (gobject_class, ARG_DVBSRC_TUNE,