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1 <html> |
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2 <head> |
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3 <script src="../../LayoutTests/media/video-test.js"></script> |
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4 <script> |
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5 |
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6 var seekedCount = 0; |
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7 var counter = 0; |
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8 |
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9 function trySeek(seekTo) |
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10 { |
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11 if (isInTimeRanges(video.seekable, seekTo)) { |
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12 if (isInTimeRanges(video.buffered, seekTo)) { |
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13 consoleWrite("Warining: Seeking into buffered region. May not generate waiting or seeking events."); |
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14 } |
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15 run("video.currentTime = " + seekTo); |
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16 } else { |
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17 failTest("Cannot seek to " + seekTo + ". Does engine support seeking into unbuffered region?"); |
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18 } |
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19 } |
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20 |
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21 function seeked() |
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22 { |
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23 ++seekedCount; |
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24 consoleWrite(""); |
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25 } |
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26 |
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27 function scheduleSeek() { |
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28 setTimeout(someTimeLater, 200); |
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29 } |
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30 |
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31 function someTimeLater() |
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32 { |
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33 consoleWrite("Running scheduled seek"); |
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34 testExpected("seekedCount", counter); |
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35 testExpected("video.currentTime", counter, ">="); |
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36 |
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37 if (counter == 3) |
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38 { |
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39 consoleWrite(""); |
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40 return; |
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41 endTest(); |
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42 } |
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43 |
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44 ++counter; |
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45 |
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46 scheduleSeek(); |
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47 trySeek(counter); |
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48 consoleWrite(""); |
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49 } |
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50 |
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51 function start() |
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52 { |
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53 findMediaElement(); |
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54 |
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55 waitForEvent('waiting'); |
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56 waitForEvent('seeking'); |
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57 waitForEvent('seeked', seeked); |
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58 waitForEvent('play', someTimeLater); |
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59 |
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60 consoleWrite("Start Load"); |
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61 video.src = "http://127.0.0.1:8000/media/video-throttled-load.cgi?name=../../../media/content/test.mp4&throttle=25"; |
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62 video.load(); |
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63 video.play(); |
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64 } |
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65 </script> |
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66 </head> |
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67 <body onload="start()"> |
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68 <video controls></video> |
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69 |
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70 <p>Attempt to seek out of the buffered range. If supported, this |
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71 should cause a waiting and seeking event to be fired for each seek. |
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72 This test makes assumptions on the size of the input file, the bitrate |
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73 of delivery, and the duration of the file. |
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74 </p> |
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75 <p> |
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76 Source is assumed to be about 188k with a uniform bitrate, > 4 |
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77 seconds in length, and served at 25kb/s. This should make seeking one |
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78 second ahead every 200ms always leave the buffered region. |
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79 </p> |
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80 </body> |
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81 </html> |