1 2<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> 3<html><head><title>Python: module telemetry.internal.image_processing.video_file_frame_generator</title> 4<meta charset="utf-8"> 5</head><body bgcolor="#f0f0f8"> 6 7<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="heading"> 8<tr bgcolor="#7799ee"> 9<td valign=bottom> <br> 10<font color="#ffffff" face="helvetica, arial"> <br><big><big><strong><a href="telemetry.html"><font color="#ffffff">telemetry</font></a>.<a href="telemetry.internal.html"><font color="#ffffff">internal</font></a>.<a href="telemetry.internal.image_processing.html"><font color="#ffffff">image_processing</font></a>.video_file_frame_generator</strong></big></big></font></td 11><td align=right valign=bottom 12><font color="#ffffff" face="helvetica, arial"><a href=".">index</a><br><a href="../telemetry/internal/image_processing/video_file_frame_generator.py">telemetry/internal/image_processing/video_file_frame_generator.py</a></font></td></tr></table> 13 <p><tt># Copyright 2014 The Chromium Authors. All rights reserved.<br> 14# Use of this source code is governed by a BSD-style license that can be<br> 15# found in the LICENSE file.</tt></p> 16<p> 17<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section"> 18<tr bgcolor="#aa55cc"> 19<td colspan=3 valign=bottom> <br> 20<font color="#ffffff" face="helvetica, arial"><big><strong>Modules</strong></big></font></td></tr> 21 22<tr><td bgcolor="#aa55cc"><tt> </tt></td><td> </td> 23<td width="100%"><table width="100%" summary="list"><tr><td width="25%" valign=top><a href="cv2.html">cv2</a><br> 24</td><td width="25%" valign=top><a href="telemetry.internal.util.external_modules.html">telemetry.internal.util.external_modules</a><br> 25</td><td width="25%" valign=top><a href="telemetry.internal.image_processing.frame_generator.html">telemetry.internal.image_processing.frame_generator</a><br> 26</td><td width="25%" valign=top></td></tr></table></td></tr></table><p> 27<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section"> 28<tr bgcolor="#ee77aa"> 29<td colspan=3 valign=bottom> <br> 30<font color="#ffffff" face="helvetica, arial"><big><strong>Classes</strong></big></font></td></tr> 31 32<tr><td bgcolor="#ee77aa"><tt> </tt></td><td> </td> 33<td width="100%"><dl> 34<dt><font face="helvetica, arial"><a href="telemetry.internal.image_processing.frame_generator.html#FrameGenerator">telemetry.internal.image_processing.frame_generator.FrameGenerator</a>(<a href="__builtin__.html#object">__builtin__.object</a>) 35</font></dt><dd> 36<dl> 37<dt><font face="helvetica, arial"><a href="telemetry.internal.image_processing.video_file_frame_generator.html#VideoFileFrameGenerator">VideoFileFrameGenerator</a> 38</font></dt></dl> 39</dd> 40</dl> 41 <p> 42<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section"> 43<tr bgcolor="#ffc8d8"> 44<td colspan=3 valign=bottom> <br> 45<font color="#000000" face="helvetica, arial"><a name="VideoFileFrameGenerator">class <strong>VideoFileFrameGenerator</strong></a>(<a href="telemetry.internal.image_processing.frame_generator.html#FrameGenerator">telemetry.internal.image_processing.frame_generator.FrameGenerator</a>)</font></td></tr> 46 47<tr bgcolor="#ffc8d8"><td rowspan=2><tt> </tt></td> 48<td colspan=2><tt>Provides a Frame Generator for a video file.<br> 49 <br> 50Sample Usage:<br> 51 generator = <a href="#VideoFileFrameGenerator">VideoFileFrameGenerator</a>(sys.argv[1]).GetGenerator()<br> 52 for frame in generator:<br> 53 # Do something<br> 54 <br> 55Attributes:<br> 56 _capture: The openCV video capture.<br> 57 _frame_count: The number of frames in the video capture.<br> 58 _frame_index: The frame number of the current frame.<br> 59 _timestamp: The timestamp of the current frame.<br> 60 _dimensions: The dimensions of the video capture.<br> </tt></td></tr> 61<tr><td> </td> 62<td width="100%"><dl><dt>Method resolution order:</dt> 63<dd><a href="telemetry.internal.image_processing.video_file_frame_generator.html#VideoFileFrameGenerator">VideoFileFrameGenerator</a></dd> 64<dd><a href="telemetry.internal.image_processing.frame_generator.html#FrameGenerator">telemetry.internal.image_processing.frame_generator.FrameGenerator</a></dd> 65<dd><a href="__builtin__.html#object">__builtin__.object</a></dd> 66</dl> 67<hr> 68Methods defined here:<br> 69<dl><dt><a name="VideoFileFrameGenerator-__init__"><strong>__init__</strong></a>(self, video_filename, start_frame_index<font color="#909090">=0</font>)</dt><dd><tt>Initializes the <a href="#VideoFileFrameGenerator">VideoFileFrameGenerator</a> object.<br> 70 <br> 71Args:<br> 72 video_filename: str, The path to the video file.<br> 73 start_frame_index: int, The number of frames to skip at the start of the<br> 74 file.<br> 75 <br> 76Raises:<br> 77 FrameReadError: A read error occurred during initialization.</tt></dd></dl> 78 79<hr> 80Data descriptors defined here:<br> 81<dl><dt><strong>CurrentFrameNumber</strong></dt> 82</dl> 83<dl><dt><strong>CurrentTimestamp</strong></dt> 84</dl> 85<dl><dt><strong>Dimensions</strong></dt> 86</dl> 87<hr> 88Data and other attributes defined here:<br> 89<dl><dt><strong>__abstractmethods__</strong> = frozenset([])</dl> 90 91<hr> 92Data descriptors inherited from <a href="telemetry.internal.image_processing.frame_generator.html#FrameGenerator">telemetry.internal.image_processing.frame_generator.FrameGenerator</a>:<br> 93<dl><dt><strong>Generator</strong></dt> 94<dd><tt>Returns:<br> 95A reference to the created generator.</tt></dd> 96</dl> 97<dl><dt><strong>__dict__</strong></dt> 98<dd><tt>dictionary for instance variables (if defined)</tt></dd> 99</dl> 100<dl><dt><strong>__weakref__</strong></dt> 101<dd><tt>list of weak references to the object (if defined)</tt></dd> 102</dl> 103<hr> 104Data and other attributes inherited from <a href="telemetry.internal.image_processing.frame_generator.html#FrameGenerator">telemetry.internal.image_processing.frame_generator.FrameGenerator</a>:<br> 105<dl><dt><strong>__metaclass__</strong> = <class 'abc.ABCMeta'><dd><tt>Metaclass for defining Abstract Base Classes (ABCs).<br> 106 <br> 107Use this metaclass to create an ABC. An ABC can be subclassed<br> 108directly, and then acts as a mix-in class. You can also register<br> 109unrelated concrete classes (even built-in classes) and unrelated<br> 110ABCs as 'virtual subclasses' -- these and their descendants will<br> 111be considered subclasses of the registering ABC by the built-in<br> 112issubclass() function, but the registering ABC won't show up in<br> 113their MRO (Method Resolution Order) nor will method<br> 114implementations defined by the registering ABC be callable (not<br> 115even via super()).</tt></dl> 116 117</td></tr></table></td></tr></table> 118</body></html>