[opus] AM335x ARM Cortex-A8 performance drop opus 1.1
Sebastian Reimers
service at it-sreimers.de
Fri Oct 18 13:41:17 PDT 2013
Hi,
> Try comparing with --comp 9.
many thanks for your quick reply.
but my results looks really strange and no big difference between 10, 9,
8 and 7:
# opusenc --comp 10 music_orig.wav music_orig.opus
Encoding using libopus unknown (audio)
-----------------------------------------------------
Input: 48kHz 2 channels
Output: 2 channels (2 coupled)
20ms packets, 96kbit/sec VBR
Preskip: 312
Encoding complete
-----------------------------------------------------
Encoded: 1 minute and 30.82 seconds
Runtime: 1 minute and 19 seconds
(1.15x realtime)
Wrote: 1263224 bytes, 4541 packets, 93 pages
Bitrate: 110.387kbit/s (without overhead)
Instant rates: 24.4kbit/s to 197.2kbit/s
(61 to 493 bytes per packet)
Overhead: 0.796% (container+metadata)
# opusenc --comp 9 music_orig.wav music_orig.opus
Encoding using libopus unknown (audio)
-----------------------------------------------------
Input: 48kHz 2 channels
Output: 2 channels (2 coupled)
20ms packets, 96kbit/sec VBR
Preskip: 312
Encoding complete
-----------------------------------------------------
Encoded: 1 minute and 30.82 seconds
Runtime: 1 minute and 19 seconds
(1.15x realtime)
Wrote: 1263224 bytes, 4541 packets, 93 pages
Bitrate: 110.387kbit/s (without overhead)
Instant rates: 24.4kbit/s to 197.2kbit/s
(61 to 493 bytes per packet)
Overhead: 0.796% (container+metadata)
# opusenc --comp 8 music_orig.wav music_orig.opus
Encoding using libopus unknown (audio)
-----------------------------------------------------
Input: 48kHz 2 channels
Output: 2 channels (2 coupled)
20ms packets, 96kbit/sec VBR
Preskip: 312
Encoding complete
-----------------------------------------------------
Encoded: 1 minute and 30.82 seconds
Runtime: 1 minute and 20 seconds
(1.135x realtime)
Wrote: 1263224 bytes, 4541 packets, 93 pages
Bitrate: 110.387kbit/s (without overhead)
Instant rates: 24.4kbit/s to 197.2kbit/s
(61 to 493 bytes per packet)
Overhead: 0.796% (container+metadata)
# opusenc --comp 7 music_orig.wav music_orig.opus
Encoding using libopus unknown (audio)
-----------------------------------------------------
Input: 48kHz 2 channels
Output: 2 channels (2 coupled)
20ms packets, 96kbit/sec VBR
Preskip: 312
Encoding complete
-----------------------------------------------------
Encoded: 1 minute and 30.82 seconds
Runtime: 1 minute and 18 seconds
(1.164x realtime)
Wrote: 1252403 bytes, 4541 packets, 93 pages
Bitrate: 109.435kbit/s (without overhead)
Instant rates: 24.4kbit/s to 196.4kbit/s
(61 to 491 bytes per packet)
Overhead: 0.802% (container+metadata)
# opusenc --comp 6 music_orig.wav music_orig.opus
Encoding using libopus unknown (audio)
-----------------------------------------------------
Input: 48kHz 2 channels
Output: 2 channels (2 coupled)
20ms packets, 96kbit/sec VBR
Preskip: 312
Encoding complete
-----------------------------------------------------
Encoded: 1 minute and 30.82 seconds
Runtime: 1 minute and 2 seconds
(1.465x realtime)
Wrote: 1208860 bytes, 4541 packets, 93 pages
Bitrate: 105.661kbit/s (without overhead)
Instant rates: 27.2kbit/s to 196.4kbit/s
(68 to 491 bytes per packet)
Overhead: 0.773% (container+metadata)
# opusenc --comp 5 music_orig.wav music_orig.opus
Encoding using libopus unknown (audio)
-----------------------------------------------------
Input: 48kHz 2 channels
Output: 2 channels (2 coupled)
20ms packets, 96kbit/sec VBR
Preskip: 312
Encoding
complete
-----------------------------------------------------
Encoded: 1 minute and 30.82 seconds
Runtime: 1 minute and 3 seconds
(1.442x realtime)
Wrote: 1208860 bytes, 4541 packets, 93 pages
Bitrate: 105.661kbit/s (without overhead)
Instant rates: 27.2kbit/s to 196.4kbit/s
(68 to 491 bytes per packet)
Overhead: 0.773% (container+metadata)
# opusenc --comp 4 music_orig.wav music_orig.opus
Encoding using libopus unknown (audio)
-----------------------------------------------------
Input: 48kHz 2 channels
Output: 2 channels (2 coupled)
20ms packets, 96kbit/sec VBR
Preskip: 312
Encoding complete
-----------------------------------------------------
Encoded: 1 minute and 30.82 seconds
Runtime: 39 seconds
(2.329x realtime)
Wrote: 1213120 bytes, 4541 packets, 93 pages
Bitrate: 106.034kbit/s (without overhead)
Instant rates: 27.2kbit/s to 196kbit/s
(68 to 490 bytes per packet)
Overhead: 0.772% (container+metadata)
# opusenc --comp 3 music_orig.wav music_orig.opus
Encoding using libopus unknown (audio)
-----------------------------------------------------
Input: 48kHz 2 channels
Output: 2 channels (2 coupled)
20ms packets, 96kbit/sec VBR
Preskip: 312
Encoding complete
-----------------------------------------------------
Encoded: 1 minute and 30.82 seconds
Runtime: 38 seconds
(2.39x realtime)
Wrote: 1216331 bytes, 4541 packets, 93 pages
Bitrate: 106.316kbit/s (without overhead)
Instant rates: 27.2kbit/s to 196.8kbit/s
(68 to 492 bytes per packet)
Overhead: 0.771% (container+metadata)
# opusenc --comp 2 music_orig.wav music_orig.opus
Encoding using libopus unknown (audio)
-----------------------------------------------------
Input: 48kHz 2 channels
Output: 2 channels (2 coupled)
20ms packets, 96kbit/sec VBR
Preskip: 312
Encoding complete
-----------------------------------------------------
Encoded: 1 minute and 30.82 seconds
Runtime: 39 seconds
(2.329x realtime)
Wrote: 1215900 bytes, 4541 packets, 93 pages
Bitrate: 106.278kbit/s (without overhead)
Instant rates: 26.8kbit/s to 196.8kbit/s
(67 to 492 bytes per packet)
Overhead: 0.771% (container+metadata)
# opusenc --comp 1 music_orig.wav music_orig.opus
Encoding using libopus unknown (audio)
-----------------------------------------------------
Input: 48kHz 2 channels
Output: 2 channels (2 coupled)
20ms packets, 96kbit/sec VBR
Preskip: 312
Encoding complete
-----------------------------------------------------
Encoded: 1 minute and 30.82 seconds
Runtime: 35 seconds
(2.595x realtime)
Wrote: 1214244 bytes, 4541 packets, 93 pages
Bitrate: 106.133kbit/s (without overhead)
Instant rates: 26.8kbit/s to 196.8kbit/s
(67 to 492 bytes per packet)
Overhead: 0.771% (container+metadata)
cheers,
Sebastian Reimers
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