transcoding from mpegts to h264
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transcoding from mpegts to h264
 
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I am trying to encode the dvbsrc into h264, but the output file is 0 bytes.
gst-launch-1.0 --gst-debug-level=3 dvbsrc modulation="QAM 256" frequency=147000000 num-buffers=1000 ! tsdemux name=demux! queue ! x264enc qp-min=18 ! filesink location=test_x264enc.ts Setting pipeline to PAUSED ... 0:00:00.177489486 24055 0x56455f7e6ec0 FIXME dvbsrc gstdvbsrc.c:2129:gst_dvbsrc_is_valid_modulation: No modulation sanity-checks implemented for delivery system: '2' 0:00:00.177683984 24055 0x56455f7e6ec0 FIXME dvbsrc gstdvbsrc.c:2097:gst_dvbsrc_is_valid_trans_mode: No transmission-mode sanity checks implemented for this delivery system 0:00:00.177846120 24055 0x56455f7e6ec0 FIXME dvbsrc gstdvbsrc.c:2161:gst_dvbsrc_is_valid_bandwidth: No bandwidth sanity checks implemented for this delivery system 0:00:00.177993221 24055 0x56455f7e6ec0 WARN dvbsrc gstdvbsrc.c:2132:gst_dvbsrc_is_valid_modulation: Invalid modulation '5' for delivery system '11' 0:00:00.178136422 24055 0x56455f7e6ec0 FIXME dvbsrc gstdvbsrc.c:2129:gst_dvbsrc_is_valid_modulation: No modulation sanity-checks implemented for delivery system: '2' 0:00:00.178266183 24055 0x56455f7e6ec0 FIXME dvbsrc gstdvbsrc.c:2097:gst_dvbsrc_is_valid_trans_mode: No transmission-mode sanity checks implemented for this delivery system 0:00:00.178394733 24055 0x56455f7e6ec0 FIXME dvbsrc gstdvbsrc.c:2161:gst_dvbsrc_is_valid_bandwidth: No bandwidth sanity checks implemented for this delivery system Pipeline is live and does not need PREROLL ... 0:00:00.747999920 24055 0x56455f7bff20 FIXME default gstutils.c:3981:gst_pad_create_stream_id_internal:<dvbsrc0:src> Creating random stream-id, consider implementing a deterministic way of creating a stream-id Setting pipeline to PLAYING ... New clock: GstSystemClock 0:00:00.812287303 24055 0x56455f7bff20 WARN tsdemux tsdemux.c:1596:create_pad_for_stream: AC3 stream type found but no guaranteed way found to differentiate between AC3 and EAC3. Assuming plain AC3. 0:00:00.814518149 24055 0x56455f7bff20 WARN tsdemux tsdemux.c:1596:create_pad_for_stream: AC3 stream type found but no guaranteed way found to differentiate between AC3 and EAC3. Assuming plain AC3. -- Sent from: http://gstreamer-devel.966125.n4.nabble.com/ _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
RE: transcoding from mpegts to h264
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Have you looked at these examples?
https://gstreamer.freedesktop.org/documentation/dvb/dvbsrc.html?gi-language=c Here is one: gst-launch-1.0 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 ! mpegvideoparse ! mpeg2dec ! xvimagesink demux. ! queue max-size-buffers=0 max-size-time=0 ! mpegaudioparse ! mpg123audiodec ! audioconvert ! pulsesink One thing they all do is parse or decode the video some how. I don't see any plugin to parse or decode the video in your example. -----Original Message----- From: gstreamer-devel [mailto:[hidden email]] On Behalf Of vandanachadha Sent: Tuesday, February 25, 2020 9:31 AM To: [hidden email] Subject: transcoding from mpegts to h264 I am trying to encode the dvbsrc into h264, but the output file is 0 bytes. gst-launch-1.0 --gst-debug-level=3 dvbsrc modulation="QAM 256" frequency=147000000 num-buffers=1000 ! tsdemux name=demux! queue ! x264enc qp-min=18 ! filesink location=test_x264enc.ts Setting pipeline to PAUSED ... 0:00:00.177489486 24055 0x56455f7e6ec0 FIXME dvbsrc gstdvbsrc.c:2129:gst_dvbsrc_is_valid_modulation: No modulation sanity-checks implemented for delivery system: '2' 0:00:00.177683984 24055 0x56455f7e6ec0 FIXME dvbsrc gstdvbsrc.c:2097:gst_dvbsrc_is_valid_trans_mode: No transmission-mode sanity checks implemented for this delivery system 0:00:00.177846120 24055 0x56455f7e6ec0 FIXME dvbsrc gstdvbsrc.c:2161:gst_dvbsrc_is_valid_bandwidth: No bandwidth sanity checks implemented for this delivery system 0:00:00.177993221 24055 0x56455f7e6ec0 WARN dvbsrc gstdvbsrc.c:2132:gst_dvbsrc_is_valid_modulation: Invalid modulation '5' for delivery system '11' 0:00:00.178136422 24055 0x56455f7e6ec0 FIXME dvbsrc gstdvbsrc.c:2129:gst_dvbsrc_is_valid_modulation: No modulation sanity-checks implemented for delivery system: '2' 0:00:00.178266183 24055 0x56455f7e6ec0 FIXME dvbsrc gstdvbsrc.c:2097:gst_dvbsrc_is_valid_trans_mode: No transmission-mode sanity checks implemented for this delivery system 0:00:00.178394733 24055 0x56455f7e6ec0 FIXME dvbsrc gstdvbsrc.c:2161:gst_dvbsrc_is_valid_bandwidth: No bandwidth sanity checks implemented for this delivery system Pipeline is live and does not need PREROLL ... 0:00:00.747999920 24055 0x56455f7bff20 FIXME default gstutils.c:3981:gst_pad_create_stream_id_internal:<dvbsrc0:src> Creating random stream-id, consider implementing a deterministic way of creating a stream-id Setting pipeline to PLAYING ... New clock: GstSystemClock 0:00:00.812287303 24055 0x56455f7bff20 WARN tsdemux tsdemux.c:1596:create_pad_for_stream: AC3 stream type found but no guaranteed way found to differentiate between AC3 and EAC3. Assuming plain AC3. 0:00:00.814518149 24055 0x56455f7bff20 WARN tsdemux tsdemux.c:1596:create_pad_for_stream: AC3 stream type found but no guaranteed way found to differentiate between AC3 and EAC3. Assuming plain AC3. -- Sent from: http://gstreamer-devel.966125.n4.nabble.com/ _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
RE: transcoding from mpegts to h264
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I get the following error when I tried the command you gave:
WARNING: erroneous pipeline: no element "mpegtsdemux" What has worked so far: gst-launch-1.0 --gst-debug-level=3 dvbsrc modulation="QAM 256" frequency=147000000 \ ! decodebin name=demux demux. \ ! queue \ ! audioresample \ ! audioconvert \ ! voaacenc \ ! mux. mpegtsmux name=mux \ ! udpsink host=122.160.22.197 port=10912 demux. \ ! queue \ ! videoconvert \ ! videoscale \ ! x264enc bitrate=1258 tune=zerolatency \ ! video/x-h264,stream-format=byte-stream,profile=high,width=720,height=480 \ ! mux. Do you see anything amiss here? It does give me a stream, though it jumps sometimes, and I get the following errors in the logs: WARN dvbsrc gstdvbsrc.c:1897:gst_dvbsrc_read_device:<dvbsrc0> Unable to read from device: /dev/dvb/adapter0/dvr0 (75) 0:00:07.809897228 13439 0x55eaa28ab720 WARN tsdemux tsdemux.c:2359:gst_ts_demux_queue_data: CONTINUITY: Mismatch packet 13, stream 4 0:00:07.810198989 13439 0x55eaa28ab720 WARN tsdemux tsdemux.c:2359:gst_ts_demux_queue_data: CONTINUITY: Mismatch packet 14, stream 12 0:00:08.803343964 13439 0x7f0f54054770 WARN videodecoder gstvideodecoder.c:2780:gst_video_decoder_prepare_finish_frame:<avdec_mpeg2video0> decreasing timestamp (0:00:07.070546339 < 0:00:07.470939627) 0:00:11.758662067 13439 0x55eaa28ab720 WARN dvbsrc gstdvbsrc.c:1897:gst_dvbsrc_read_device:<dvbsrc0> Unable to read from device: /dev/dvb/adapter0/dvr0 (75) 0:00:12.616993281 13439 0x7f0f540c9100 ERROR libav :0:: ac-tex damaged at 23 9 0:00:12.618704636 13439 0x7f0f54054770 ERROR libav :0:: Warning MVs not available -- Sent from: http://gstreamer-devel.966125.n4.nabble.com/ _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
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