The ffmpeg -headers option was receiving the User-Agent value split across multiple arguments due to spaces not being properly quoted. This caused ffmpeg to interpret "Mozilla/5.0" as an output format, resulting in: [NULL @ ...] Unable to find a suitable output format for 'Mozilla/5.0' Fixed by wrapping the entire headers string in quotes so parseArgsStringToArgv treats it as a single argument. The headers string is now properly passed to ffmpeg as: -headers "User-Agent: ... \r\nConnection: ..." The fix has been applied to vendor/discord-video-stream/src/media/newApi.ts and compiled into dist/media/newApi.js. A patch file and documentation have been added to the patches/ directory for reference. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
36 lines
1.5 KiB
Markdown
36 lines
1.5 KiB
Markdown
# Patches
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This directory contains patches for vendor dependencies that have local modifications.
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## ffmpeg-headers-fix.patch
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**Issue:** Screen share streaming fails with ffmpeg error:
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```
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[NULL @ ...] Unable to find a suitable output format for 'Mozilla/5.0'
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```
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**Root Cause:** The `@dank074/discord-video-stream` library's `prepareStream` function passes HTTP headers to ffmpeg without proper quoting. The `fluent-ffmpeg-simplified` library uses `parseArgsStringToArgv` to parse command-line arguments, which splits strings by spaces. This causes the User-Agent header value (with spaces) to be split into multiple separate arguments instead of being kept as a single value.
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**Fix:** Wrap the entire headers string in quotes so `parseArgsStringToArgv` treats it as a single argument:
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```typescript
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// Before (broken)
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command.inputOptions(
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"-headers",
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Object.entries(customHeaders)
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.map(([k, v]) => `${k}: ${v}`)
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.join("\r\n"),
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);
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// After (fixed)
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const headersString = Object.entries(customHeaders)
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.map(([k, v]) => `${k}: ${v}`)
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.join("\r\n");
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command.inputOptions(`-headers "${headersString}"`);
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```
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**Applied To:** `vendor/discord-video-stream/src/media/newApi.ts` (lines 263-269)
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**Status:** Patch is applied locally. The compiled output in `dist/media/newApi.js` reflects this fix.
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**Note:** This is a local patch to the vendor submodule. To make this permanent, it should be submitted as a PR to the upstream repository: https://github.com/dank074/discord-video-stream
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