FreeCalypso > hg > gsm-codec-lib
diff efrtest/decode-r.c @ 154:01ce75ea1c8e
gsmefr-decode-r utility put together
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Wed, 14 Dec 2022 23:18:18 +0000 |
parents | efrtest/decode.c@d5bab777865a |
children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/efrtest/decode-r.c Wed Dec 14 23:18:18 2022 +0000 @@ -0,0 +1,68 @@ +/* + * gsmefr-decode-r is like gsmefr-decode, but writes the decoded PCM + * output in our "robe" format instead of WAV. + */ + +#include <stdio.h> +#include <stdint.h> +#include <stdlib.h> +#include "../libgsmefr/gsm_efr.h" +#include "../libtest/binreader.h" +#include "../libtest/robewrite.h" + +main(argc, argv) + char **argv; +{ + FILE *binf, *outf; + struct EFR_decoder_state *state; + uint8_t frame[BINFILE_MAX_FRAME]; + int16_t pcm[160]; + int rc, bfi, taf; + + if (argc != 3) { + fprintf(stderr, "usage: %s input.gsmx output.robe\n", argv[0]); + exit(1); + } + binf = fopen(argv[1], "r"); + if (!binf) { + perror(argv[1]); + exit(1); + } + outf = fopen(argv[2], "w"); + if (!outf) { + perror(argv[2]); + exit(1); + } + state = EFR_decoder_create(); + if (!state) { + perror("EFR_decoder_create()"); + exit(1); + } + for (;;) { + rc = binfile_read_frame(binf, frame); + if (rc < 0) { + fprintf(stderr, "error: garbage in %s\n", argv[1]); + exit(1); + } + if (!rc) + break; + if (frame[0] == 0xBF) { + bfi = 1; + taf = frame[1] & 1; + } else if ((frame[0] & 0xF0) == 0xC0) + bfi = 0; + else { + fprintf(stderr, + "error: %s is not in EFR codec format\n", + argv[1]); + exit(1); + } + if (bfi) + EFR_decode_bfi_nodata(state, taf, pcm); + else + EFR_decode_frame(state, frame, 0, 0, pcm); + write_pcm_to_robe(outf, pcm); + } + fclose(outf); + exit(0); +}