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dash: don't use profiles to determine if a video is a live stream #1231

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merged 1 commit into from
Jan 17, 2024

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dyc3
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@dyc3 dyc3 commented Jan 17, 2024

closes #1224

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coderabbitai bot commented Jan 17, 2024

Walkthrough

The update to DashVideoAdapter allows for the handling of DASH VOD streams that use the live profile, by checking for mediaPresentationDuration in the manifest. The associated unit tests in dash.spec.ts were also updated to reflect this change, ensuring that the parsing of MPD data is accurately tested with the inclusion of the mediaPresentationDuration attribute.

Changes

File Path Change Summary
server/services/dash.ts Refactored to check for mediaPresentationDuration for DASH VOD support
server/tests/unit/services/dash.spec.ts Updated tests to include mediaPresentationDuration in MPD data parsing

Assessment against linked issues

Objective Addressed Explanation
Support for DASH VOD streams using the live profile in DashVideoAdapter (#1224)

Poem

In the code where streams do flow, 🐇💻
A rabbit worked with a soft, gentle glow, ✨
"Now VODs with live profiles play,"
"Merge my code," the rabbit did say. 🎉

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Review Status

Actionable comments generated: 0

Configuration used: CodeRabbit UI

Commits Files that changed from the base of the PR and between 06b4a6c and ea6f215.
Files selected for processing (2)
  • server/services/dash.ts (1 hunks)
  • server/tests/unit/services/dash.spec.ts (1 hunks)
Additional comments: 2
server/tests/unit/services/dash.spec.ts (1)
  • 30-31: The addition of mediaPresentationDuration to the mockMPDData and mockManifest is consistent with the changes in the DashVideoAdapter to use this attribute for determining if a video is a live stream. This ensures that the unit tests will accurately test the new functionality.
server/services/dash.ts (1)
  • 68-69: The logic change to check for mediaPresentationDuration instead of profiles to determine if a video is a live stream aligns with the PR objectives. This should correctly handle the case where VOD streams are marked with a live profile. Ensure that this change is thoroughly tested, especially for edge cases where the mediaPresentationDuration might be missing or incorrectly formatted.
Verification successful

The parseIso8601Duration function in server/services/parsing/iso8601.ts includes error handling for malformed inputs. If the input string does not match the expected ISO 8601 duration format, the function throws an error with the message Failed to parse duration: ${duration}. This indicates that the function is designed to handle cases where the mediaPresentationDuration might be missing or incorrectly formatted by throwing an error, which should be caught and handled appropriately where the function is called.

Scripts Executed

The following scripts were executed for the analysis:


Script:

#!/bin/bash
# Verify that all cases where mediaPresentationDuration might be missing or malformed are handled.
rg --type js 'mediaPresentationDuration' --context 5

Length of output: 52



Script:

#!/bin/bash
# Let's try to find the file by name first to ensure it exists and is indexed.
fd 'dash.ts'

# If the file is found, we will then search for 'mediaPresentationDuration' within that file.
# We will use 'rg' without specifying the file type to avoid any issues with file type detection.
fd 'dash.ts' --exec rg 'mediaPresentationDuration' --context 5

Length of output: 501



Script:

#!/bin/bash
# Let's find the definition and usage of parseIso8601Duration to see how it handles malformed inputs.
rg 'parseIso8601Duration' --context 5

Length of output: 5914



Script:

#!/bin/bash
# Examine the error handling within the parseIso8601Duration function to see how it deals with malformed inputs.
rg 'parseIso8601Duration' server/services/parsing/iso8601.ts -A 10 -B 2

Length of output: 370



Script:

#!/bin/bash
# The previous output was incomplete. Let's get the full body of the parseIso8601Duration function to see the complete error handling.
rg 'parseIso8601Duration' server/services/parsing/iso8601.ts -A 20 -B 2

Length of output: 712

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cypress bot commented Jan 17, 2024

Passing run #831 ↗︎

0 71 1 0 Flakiness 0

Details:

Merge ea6f215 into 06b4a6c...
Project: OpenTogetherTube Commit: f1cd8f0927 ℹ️
Status: Passed Duration: 03:24 💡
Started: Jan 17, 2024 3:39 PM Ended: Jan 17, 2024 3:43 PM

Review all test suite changes for PR #1231 ↗︎

@dyc3 dyc3 merged commit 51c598c into master Jan 17, 2024
16 checks passed
@dyc3 dyc3 deleted the dash-livestream-detect branch January 17, 2024 15:43
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Successfully merging this pull request may close these issues.

Support for DASH VOD streams that use the live profile in DashVideoAdapter
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