2 3baa2617 2022-02-16 op * Copyright (c) 2022 Omar Polo <op@openbsd.org>
4 3baa2617 2022-02-16 op * Permission to use, copy, modify, and distribute this software for any
5 3baa2617 2022-02-16 op * purpose with or without fee is hereby granted, provided that the above
6 3baa2617 2022-02-16 op * copyright notice and this permission notice appear in all copies.
8 3baa2617 2022-02-16 op * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 3baa2617 2022-02-16 op * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 3baa2617 2022-02-16 op * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 3baa2617 2022-02-16 op * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 3baa2617 2022-02-16 op * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 3baa2617 2022-02-16 op * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 3baa2617 2022-02-16 op * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 f36fd90a 2022-07-09 op #include "config.h"
19 3baa2617 2022-02-16 op #include <inttypes.h>
20 bb3f279f 2022-02-16 op #include <limits.h>
21 3baa2617 2022-02-16 op #include <stdio.h>
22 3baa2617 2022-02-16 op #include <stdlib.h>
23 3baa2617 2022-02-16 op #include <stdint.h>
24 791d3db3 2022-07-09 op #include <string.h>
26 3baa2617 2022-02-16 op #include <FLAC/stream_decoder.h>
28 3baa2617 2022-02-16 op #include "amused.h"
29 bee9cc8d 2022-02-18 op #include "log.h"
31 791d3db3 2022-07-09 op struct write_args {
32 791d3db3 2022-07-09 op FLAC__StreamDecoder *decoder;
33 791d3db3 2022-07-09 op int seek_failed;
37 791d3db3 2022-07-09 op sample_seek(struct write_args *wa, int64_t seek)
41 791d3db3 2022-07-09 op ok = FLAC__stream_decoder_seek_absolute(wa->decoder, seek);
43 791d3db3 2022-07-09 op player_setpos(seek);
45 791d3db3 2022-07-09 op wa->seek_failed = 1;
49 3baa2617 2022-02-16 op static FLAC__StreamDecoderWriteStatus
50 3baa2617 2022-02-16 op writecb(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame,
51 44cf9512 2022-03-25 op const int32_t * const *src, void *data)
53 791d3db3 2022-07-09 op struct write_args *wa = data;
54 3baa2617 2022-02-16 op static uint8_t buf[BUFSIZ];
56 44cf9512 2022-03-25 op int c, i, bps, chans;
59 44cf9512 2022-03-25 op bps = frame->header.bits_per_sample;
60 44cf9512 2022-03-25 op chans = frame->header.channels;
62 3baa2617 2022-02-16 op for (i = 0, len = 0; i < frame->header.blocksize; ++i) {
63 d9cc6713 2022-03-25 op if (len + 4*chans >= sizeof(buf)) {
64 791d3db3 2022-07-09 op if (!play(buf, len, &seek))
66 791d3db3 2022-07-09 op if (seek != -1) {
67 791d3db3 2022-07-09 op if (sample_seek(wa, seek))
75 44cf9512 2022-03-25 op for (c = 0; c < chans; ++c) {
76 44cf9512 2022-03-25 op switch (bps) {
78 44cf9512 2022-03-25 op buf[len++] = src[c][i] & 0xff;
81 44cf9512 2022-03-25 op buf[len++] = src[c][i] & 0xff;
82 44cf9512 2022-03-25 op buf[len++] = (src[c][i] >> 8) & 0xff;
86 44cf9512 2022-03-25 op buf[len++] = src[c][i] & 0xff;
87 44cf9512 2022-03-25 op buf[len++] = (src[c][i] >> 8) & 0xff;
88 44cf9512 2022-03-25 op buf[len++] = (src[c][i] >> 16) & 0xff;
89 44cf9512 2022-03-25 op buf[len++] = (src[c][i] >> 24) & 0xff;
92 44cf9512 2022-03-25 op log_warnx("unsupported flac bps=%d", bps);
98 791d3db3 2022-07-09 op if (len != 0 && !play(buf, len, &seek))
101 791d3db3 2022-07-09 op if (seek != -1 && !sample_seek(wa, seek))
104 3baa2617 2022-02-16 op return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
106 2139c525 2022-03-09 op return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
110 3baa2617 2022-02-16 op metacb(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *meta,
113 3baa2617 2022-02-16 op uint32_t sample_rate;
114 44cf9512 2022-03-25 op int channels, bits;
116 3baa2617 2022-02-16 op if (meta->type == FLAC__METADATA_TYPE_STREAMINFO) {
117 44cf9512 2022-03-25 op bits = meta->data.stream_info.bits_per_sample;
118 3baa2617 2022-02-16 op sample_rate = meta->data.stream_info.sample_rate;
119 7fc831ea 2022-02-18 op channels = meta->data.stream_info.channels;
121 44cf9512 2022-03-25 op if (player_setup(bits, sample_rate, channels) == -1)
122 1fb06c31 2022-06-10 op err(1, "player_setup");
124 ff06024f 2022-07-08 op player_setduration(meta->data.stream_info.total_samples);
129 1771f738 2022-06-09 op errcb(const FLAC__StreamDecoder *decoder,
130 1771f738 2022-06-09 op FLAC__StreamDecoderErrorStatus status, void *data)
132 1771f738 2022-06-09 op log_warnx("flac error: %s",
133 1771f738 2022-06-09 op FLAC__StreamDecoderErrorStatusString[status]);
137 17ef54d6 2022-06-22 op play_flac(int fd, const char **errstr)
140 791d3db3 2022-07-09 op struct write_args wa;
141 bee9cc8d 2022-02-18 op int s, ok = 1;
142 3baa2617 2022-02-16 op FLAC__StreamDecoder *decoder = NULL;
143 3baa2617 2022-02-16 op FLAC__StreamDecoderInitStatus init_status;
145 986b215c 2022-07-09 op if ((f = fdopen(fd, "r")) == NULL) {
146 986b215c 2022-07-09 op *errstr = "fdopen failed";
151 3baa2617 2022-02-16 op decoder = FLAC__stream_decoder_new();
152 986b215c 2022-07-09 op if (decoder == NULL) {
153 986b215c 2022-07-09 op *errstr = "FLAC__stream_decoder_new() failed";
158 3baa2617 2022-02-16 op FLAC__stream_decoder_set_md5_checking(decoder, 1);
160 791d3db3 2022-07-09 op memset(&wa, 0, sizeof(wa));
161 791d3db3 2022-07-09 op wa.decoder = decoder;
163 3baa2617 2022-02-16 op init_status = FLAC__stream_decoder_init_FILE(decoder, f, writecb,
164 791d3db3 2022-07-09 op metacb, errcb, &wa);
165 3baa2617 2022-02-16 op if (init_status != FLAC__STREAM_DECODER_INIT_STATUS_OK)
166 3baa2617 2022-02-16 op errx(1, "flac decoder: %s",
167 3baa2617 2022-02-16 op FLAC__StreamDecoderInitStatusString[init_status]);
169 3baa2617 2022-02-16 op ok = FLAC__stream_decoder_process_until_end_of_stream(decoder);
171 791d3db3 2022-07-09 op s = FLAC__stream_decoder_get_state(decoder);
172 0da0ad46 2022-03-09 op FLAC__stream_decoder_delete(decoder);
175 791d3db3 2022-07-09 op if (s == FLAC__STREAM_DECODER_ABORTED && !wa.seek_failed)
177 791d3db3 2022-07-09 op else if (!ok && !wa.seek_failed) {
178 17ef54d6 2022-06-22 op *errstr = "flac decoding error";