FreeCalypso > hg > gsm-codec-lib
annotate libtest/binreader.h @ 605:63f774192906
gsmhr_decoder_twts002_in(): set BFI=1 SID=1 for invalid SID
When a received TW-TS-002 RTP payload indicates invalid SID,
which of the 3 possible BFI/SID combinations should we pass to
our internal ETSI-based speech decoder or TFO engine?
Our original code passed BFI=0 SID=1, but upon further reflection,
BFI=1 SID=1 is a better choice. In the corner case where received
invalid SID is fed to a full decoder in homed state, setting BFI=1
allows that decoder to emit zeros on PCM and stay homed, instead of
launching into full decoding.
| author | Mychaela Falconia <falcon@freecalypso.org> |
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| date | Thu, 04 Dec 2025 21:01:46 +0000 |
| parents | 820d88b97924 |
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libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
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1 /* |
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820d88b97924
libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
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2 * This header file defines the interface to our reader function for binary |
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820d88b97924
libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
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3 * files recording GSM FR or EFR streams, see ../doc/Binary-file-format. |
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820d88b97924
libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
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4 * |
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820d88b97924
libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
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5 * binfile_read_frame() return values are: |
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820d88b97924
libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
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6 * 1 = successfully read valid frame |
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820d88b97924
libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
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7 * 0 = normal EOF |
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820d88b97924
libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
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8 * -1 = unrecognized header byte |
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820d88b97924
libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
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9 * -2 = EOF in the middle of a frame |
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820d88b97924
libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
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10 */ |
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820d88b97924
libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
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11 |
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820d88b97924
libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
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12 #define BINFILE_MAX_FRAME 33 |
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820d88b97924
libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
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13 |
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820d88b97924
libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
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14 extern int binfile_read_frame(FILE *binf, uint8_t *frame); |
