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View Code? Open in Web Editor NEWJavaScript opus encoder
Home Page: https://blog.rillke.com/opusenc.js/
License: Other
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malloc is undefined
I appear to receive this error when wasm is used (it doesn't happen when using asm):
TypeError: Module.asm._malloc is undefined OpusEncoder.js line 422 > eval:1:118376
_malloc http://localhost:7711/worker/OpusEncoder.js line 422 > eval:1
getBufferFor http://localhost:7711/worker/EmsArgs.js:74
readBlobAsArrayBuffer http://localhost:7711/worker/EmsArgs.js:52
I noticed that if I remove your input disabled attribute in your example and run the encoder twice, the same thing occurs. Is this intentional?
Searching around, the only thing similar is this: emscripten-core/emscripten#6632 (comment)
So I might give that a try myself when I have time.
Troubeling file modification served to end users through gh-pages and CF
- Original:
00 00 00 00 B7 1D C1 04 6E 3B 82 *09* D9 26 43 0D ....·.Á.n;‚.Ù&C. - Fraudulent copy:
00 00 00 00 B7 1D C1 04 6E 3B 82 *20* D9 26 43 0D ....·.Á.n;‚ Ù&C.
(This is the only modification.)
yielding in invalid encoded files
Diff 15: Delete 2 bytes at address 0x00009347 (first file)
Diff 16: Add 2 bytes at address 0x00009348 (second file) after address 0x0000934A (first file)
- Valid:
...
67 67 53 00 00 80 A9 03 00 00 00 00 00 4D BE 7A ggS..€©......M¾z
4B 06 00 00 00 64 F6 98 B8 39 FF 2E FF 04 K....dö˜¸9 ÿ.ÿ.
...
- Invalid:
...
67 67 53 00 00 80 A9 03 00 00 00 00 00 D8 7C 81 ggS..€©......Ø|
30 06 00 00 00 AE 22 39 A3 39 FF 2E FF 04 0....®" 9£9ÿ.ÿ.
...
filename instead of blob
please can we have a proper filename.ogg instead of blob url?
blob:https%3A//rawgit.com/24d7eeb2-014d-4ba0-a6e7-392037a3311f
Package is not published on NPM registry
Do you plan on doing so? :)
streaming support
First off, really neat work here with this! 👍
I came here via your post on StackOverflow, and I wanted to ask your thoughts on what would be involved in converting this to something that could accept a stream from getUserMedia. You also pointed to kazuki/opus.js-sample, however that's throwing opus_encoder_create failed whenever I try to use it.
I ended up here after playing around with libmp3lame.js for a while, but running into some (potentially unresolvable?) issues around audible artefacts at various bitrates.
Anyway, I guess I was hoping for your thoughts on what would be involved in adding streaming support, and to inquire whether that was something you've taken a crack at. Hope that you don't mind me opening an issue for this.
Is how can change encoder params?
Hey
In c/c++ I can use code like below
opus_encoder_ctl(enc, OPUS_SET_PACKET_LOSS_PERC(packetLossPercent));
opus_encoder_ctl(enc, OPUS_SET_INBAND_FEC( percent > 0 ? 1 : 0 ));
opus_encoder_ctl(enc, OPUS_SET_DTX(enable ? 1 : 0));
Is it possible to do same things in js?
Thank you
Files produced by WASM-Build bigger than asm.js
WASM:
XXX@XXX:~/Downloads$ opusinfo encoded.opus
Processing file "encoded.opus"...
New logical stream (#1, serial: 633146a3): type opus
Encoded with libopus 1.2.1
User comments section follows...
ENCODER=opus-tools/opusenc https://blog.rillke.com/opusenc.js/ from opus-tools 0.1.10-2-g6f67426
title=Follow me up to Carlow
artist=Christoph Nolte
album=The Rocky Road
date=2009
genre=Folk
publisher=Jamendo
copyright=2009-10-26T12:17:51+01:00 Christoph Nolte. Licensed to the public under http://creativecommons.org/licenses/by-sa/2.0/de/ verify at http://www.jamendo.com/album/54242/
encoded_by=Jamendo : http://www.jamendo.com | LAME
TRACKNUMBER=05
TDTG=2014-05-30T11:51:21
encoder=Lavf56.15.102
METADATA_BLOCK_PICTURE=3|image/jpeg||200x200x24|<5348 bytes of image data>
Opus stream 1:
Pre-skip: 312
Playback gain: 0 dB
Channels: 2
Original sample rate: 44100Hz
Packet duration: 20.0ms (max), 20.0ms (avg), 20.0ms (min)
Page duration: 1000.0ms (max), 999.1ms (avg), 840.0ms (min)
Total data length: 2013265 bytes (overhead: 1.17%)
Playback length: 2m:51.829s
Average bitrate: 93.73 kb/s, w/o overhead: 92.64 kb/s
Logical stream 1 ended
ASM.JS
XXX@XXX:~/Downloads$ opusinfo "encoded(1).opus"
Processing file "encoded(1).opus"...
New logical stream (#1, serial: 7eba927d): type opus
Encoded with libopus 1.2.1
User comments section follows...
ENCODER=opus-tools/opusenc https://blog.rillke.com/opusenc.js/ from opus-tools 0.1.10-2-g6f67426
title=Follow me up to Carlow
artist=Christoph Nolte
album=The Rocky Road
date=2009
genre=Folk
publisher=Jamendo
copyright=2009-10-26T12:17:51+01:00 Christoph Nolte. Licensed to the public under http://creativecommons.org/licenses/by-sa/2.0/de/ verify at http://www.jamendo.com/album/54242/
encoded_by=Jamendo : http://www.jamendo.com | LAME
TRACKNUMBER=05
TDTG=2014-05-30T11:51:21
encoder=Lavf56.15.102
METADATA_BLOCK_PICTURE=3|image/jpeg||200x200x24|<5348 bytes of image data>
Opus stream 1:
Pre-skip: 312
Playback gain: 0 dB
Channels: 2
Original sample rate: 44100Hz
Packet duration: 20.0ms (max), 20.0ms (avg), 20.0ms (min)
Page duration: 1000.0ms (max), 999.1ms (avg), 840.0ms (min)
Total data length: 1693170 bytes (overhead: 1.34%)
Playback length: 2m:51.829s
Average bitrate: 78.83 kb/s, w/o overhead: 77.77 kb/s
Logical stream 1 ended
why the demo is not working?
i'm trying to use in react. but, i get this error: Error parsing input file: audio.ogg
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