| <!DOCTYPE html> |
| <html> |
| <head> |
| <title>media-source-real-append-buffer</title> |
| <script src="mp4-generator.js"></script> |
| <script src="../video-test.js"></script> |
| <script> |
| // This test mirrors media-source-append-buffer.html but uses real MP4 data |
| // instead of the mock backend, exercising the real SourceBufferParser pipeline. |
| |
| var source; |
| var sourceBuffer; |
| var initData; |
| var mediaData; |
| |
| async function runTest() { |
| findMediaElement(); |
| |
| if (!MediaSource.isTypeSupported(MP4.VIDEO_TYPE)) { |
| failTest(`${MP4.VIDEO_TYPE} is not supported`); |
| return; |
| } |
| |
| source = new MediaSource(); |
| run('video.src = URL.createObjectURL(source)'); |
| await waitFor(source, 'sourceopen'); |
| |
| run(`sourceBuffer = source.addSourceBuffer('${MP4.VIDEO_TYPE}')`); |
| |
| // Append init segment |
| initData = MP4.initSegment({ |
| timescale: 1000, |
| tracks: [{ id: 1, type: 'video', timescale: 1000 }] |
| }); |
| run('sourceBuffer.appendBuffer(initData)'); |
| testExpected('sourceBuffer.updating', true); |
| await waitFor(sourceBuffer, 'updateend'); |
| testExpected('sourceBuffer.updating', false); |
| |
| // Append media segment with 4 samples of 1-second duration each |
| mediaData = MP4.mediaSegment({ |
| sequenceNumber: 1, |
| tracks: [{ |
| id: 1, |
| type: 'video', |
| baseDecodeTime: 0, |
| samples: [ |
| { duration: 1000, compositionTimeOffset: 0, isSync: true }, |
| { duration: 1000, compositionTimeOffset: 0, isSync: false }, |
| { duration: 1000, compositionTimeOffset: 0, isSync: false }, |
| { duration: 1000, compositionTimeOffset: 0, isSync: false }, |
| ] |
| }] |
| }); |
| run('sourceBuffer.appendBuffer(mediaData)'); |
| testExpected('sourceBuffer.updating', true); |
| await waitFor(sourceBuffer, 'updateend'); |
| testExpected('sourceBuffer.updating', false); |
| |
| // Verify buffered ranges: 4 samples x 1000 units / 1000 timescale = 4 seconds |
| testExpected('sourceBuffer.buffered.length', 1); |
| testExpectedEqualWithTolerance('sourceBuffer.buffered.start(0)', 0, 0.01); |
| testExpectedEqualWithTolerance('sourceBuffer.buffered.end(0)', 4, 0.01); |
| } |
| |
| window.addEventListener('load', event => { |
| runTest().then(endTest).catch(failTest); |
| }); |
| </script> |
| </head> |
| <body> |
| <video></video> |
| </body> |
| </html> |
