Created
May 12, 2015 20:19
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More fun with gstreamer
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| #!/bin/env python2 | |
| import pygst | |
| pygst.require('0.10') | |
| import gst | |
| pipeline = gst.Pipeline('pipeline') | |
| file_src = gst.element_factory_make('filesrc', 'source'); | |
| file_src.set_property('location', '../videos/tears_of_steel_720p.mkv') | |
| matroskademux = gst.element_factory_make('matroskademux') | |
| h264parse = gst.element_factory_make('h264parse') | |
| ffdec_h264 = gst.element_factory_make('ffdec_h264') | |
| colorspace1 = gst.element_factory_make('ffmpegcolorspace') | |
| videoscale = gst.element_factory_make('videoscale') | |
| colorspace2 = gst.element_factory_make('ffmpegcolorspace') | |
| caps = gst.Caps('video/x-raw-rgb, bpp=(int)32, endianness=(int)4321, format=(fourcc)BGRA, red_mask=(int)65280, green_mask=(int)16711680, blue_mask=(int)-16777216, width=(int)1280, height=(int)720, framerate=(fraction)24/1, pixel-aspect-ratio=(fraction)1/1, interlaced=(boolean)false') | |
| caps_filter = gst.element_factory_make('capsfilter') | |
| caps_filter.set_property('caps', caps); | |
| ximagesink = gst.element_factory_make('ximagesink') | |
| pipeline.add(file_src, matroskademux, h264parse, ffdec_h264, colorspace1, videoscale, colorspace2, caps_filter, ximagesink) | |
| gst.element_link_many(file_src, matroskademux) | |
| gst.element_link_many(h264parse, ffdec_h264, colorspace1, videoscale, colorspace2, caps_filter, ximagesink) | |
| def on_new_demux_pad(element): | |
| matroskademux.link(h264parse) | |
| pipeline.set_state(gst.STATE_PLAYING) | |
| matroskademux.connect('no-more-pads', on_new_demux_pad) | |
| pipeline.set_state(gst.STATE_PAUSED) | |
| bus = pipeline.get_bus() | |
| msg = bus.timed_pop_filtered(gst.CLOCK_TIME_NONE, | |
| gst.MESSAGE_ERROR | gst.MESSAGE_EOS) | |
| print msg | |
| pipeline.set_state(gst.STATE_NULL) |
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| #!/bin/bash | |
| MIXERFORMAT='video/x-raw-rgb, bpp=(int)32, endianness=(int)4321, format=(fourcc)BGRA, red_mask=(int)65280, green_mask=(int)16711680, blue_mask=(int)-16777216, width=(int)1280, height=(int)720, framerate=(fraction)24/1, pixel-aspect-ratio=(fraction)1/1, interlaced=(boolean)false' | |
| SRC="filesrc location=../videos/tears_of_steel_720p.mkv ! matroskademux ! h264parse ! ffdec_h264" | |
| SCALE='ffmpegcolorspace ! videoscale ! ffmpegcolorspace' | |
| gst-launch-0.10 -v \ | |
| $SRC !\ | |
| $SCALE !\ | |
| $MIXERFORMAT !\ | |
| ximagesink |
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