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2017-05-28Add support for RTP with GSM-HR payload according to RFC5993Harald Welte3-1/+83
This is incompatible with the ETSI TS 101 318 format!
2017-05-28Add support for RTP with GSM-HR payload according to ETSI TS 101 318Harald Welte3-1/+65
2017-05-28Add "rtp-efr" format support for RTP payload according to RFC3551 4.5.9Harald Welte3-1/+76
The RTP EFR payload is a bit like the FR payload: one nibble magic marker, then followed by the actual codec bits. So we need to add/remove that magic marker and shift the remainder by one nibble.
2017-05-28Fix HR codec block sizesHarald Welte2-5/+2
The ETSI reference codec actually uses an array of 20/22 16bit values rather than a "canonical" format. The conversion is what fmt_hr_ref.c is doing. However, codec_hr.c must then subsequently not check for the canonical input/output sizes, but those specific to it.
2017-05-28Print some useful information while putting together the procqueueHarald Welte5-0/+13
2017-05-28print meaningful error messages if something goes wrong in main/pqHarald Welte3-10/+34
2017-05-28Add AMR codec supportHarald Welte6-2/+240
After merging this change, there is support for the AMR codec (by means of libopencore-amr, which is already used for EFR). In terms of gapk formats, we introdude * the "amr-opencore" format, which serves both as the canonical format, and as the input format to opencore-amrnb itself. * the "rtp-amr" format, which is the payload of RFC4867 octet-aligned mode You can use the following command for a real-time RTP playback for AMR frames: ./gapk -I 0.0.0.0/30000 -f rtp-amr -A default -g rawpcm-s16le
2017-05-28prepare gapk for dealing with variable-length framesHarald Welte14-96/+188
The existing architecture was modelled around fixed-length codec frame sizes, which of course fails with multi-rate codecs such as AMR.
2017-05-28introduce #defines for canonical length + use themHarald Welte5-5/+5
2017-05-28Add ALSA input/output support to GAPKHarald Welte3-6/+210
The ALSA source/sink uses the pcm-s16le format.
2017-05-28RTP: give meaningful error messages if something failsHarald Welte1-8/+24
In fact, it should probably be better to silently ignore all those errors as opposed to aborting the entire processing queue? But that's for another patch...
2017-05-27add some more comments throughout the codeHarald Welte7-1/+53
2015-12-30main: Fixup the help screenSylvain Munaut1-1/+1
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2015-12-30benchmark: Make sure to print to stderrSylvain Munaut1-2/+4
stdout can be used for data output ... Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2014-05-08Add cycle benchmarking supportHarald Welte6-4/+83
This enables benchmarking of the codec. It will print the amount of CPU cycles needed for encoding/decoding a single 20ms frame on average.
2013-06-17build: Use AM_CPPFLAGS in Makefile.amSylvain Munaut1-1/+1
Since automake 1.13 INCLUDES is depricates and causes a warning Inspired from similar patches by Alexander Huemer for other osmocom projects Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2013-02-11gapk: make sure the output file is closed/flushed on ctrl+cHarald Welte1-1/+21
This is useful particularly in case you are reading from RTP and writing to a file, and don't want truncated codec frames in your file.
2013-02-11gapk: Add support for RTP input/output streamsHarald Welte3-13/+343
Instead of having only file-based I/O, this enables gapk to receive and send RTP streams, e.g. from live GSM network equipment like sysmoBTS/nanoBTS. Support is currently simplistic. On transmit, there is hard-coded codec type of full-rate GSM. On receive-side, we should auto-detect the format based on frame size and/or payload type, but we don't do that yet at all.
2013-02-11gapk main: move fh_in and fh_out to sub-structures in a unionHarald Welte1-16/+31
this is done in preparation to provide something else but file input/output.
2012-12-08codec: Fix opencore nb include pathSylvain Munaut1-2/+2
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2011-02-25format/fmt_ti: Add support for EFR variantSylvain Munaut2-0/+90
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2011-02-25format/fmt_ti: Add support for HR variantSylvain Munaut2-0/+58
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2011-02-25format: Add support for the TI calypso/locosto dumped buffer formatSylvain Munaut3-1/+81
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2010-11-12codec: Fix EFR codec encoder function. Return value is #bytesSylvain Munaut1-1/+1
32 is the normal value Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2010-11-12[4/4] HR support: Add hooks in gapk to use libgsmhr for encoding/decodingSylvain Munaut2-0/+49
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2010-11-11Add a real main method to does the jobSylvain Munaut1-1/+405
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2010-11-11format: Add support for Raw PCM Signed 16 bits Little EndianSylvain Munaut3-0/+63
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2010-11-11procqueue: Add Codec tasksSylvain Munaut2-1/+70
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2010-11-11procqueue: Add format conversion tasksSylvain Munaut2-1/+62
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2010-11-11procqueue: Add file related tasksSylvain Munaut2-1/+100
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2010-11-11procqueue: Add some mechanism to queue 'processing items' on the framesSylvain Munaut2-0/+133
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2010-11-11codec/efr: Add support for encoding/decoding using OpenCore AMR NBSylvain Munaut2-2/+88
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2010-11-11codec/fr: Add support for encoding/decoding using libgsmSylvain Munaut2-1/+60
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2010-11-11format: Add function to get format by nameSylvain Munaut1-0/+15
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2010-11-11format: Add support for .amr files encapsulating EFR dataSylvain Munaut3-1/+80
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2010-11-11format: Add support for the file read/written by the Racal 6103E ms test setSylvain Munaut3-1/+169
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2010-11-05format: Add support for the 3GPP HR reference vocoder file/frame formatsSylvain Munaut3-1/+210
Yes ... they use a different format for the decoder input than for the encoder output ... Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2010-11-05format: Add support for classic .gsm file/frame formatSylvain Munaut3-1/+63
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2010-11-05format: Add initial format frameworkSylvain Munaut2-0/+37
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2010-10-29Add dependency to libosmocodec (part of libosmocore)Sylvain Munaut1-1/+2
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2010-10-29codec: Add preliminary codecs definitions for HR/FR/EFRSylvain Munaut6-1/+152
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2010-10-24Initial skeleton importSylvain Munaut2-0/+28
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
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