source: src/io/ioutils.c @ 2a94eca

feature/autosinkfeature/constantqfeature/pitchshiftfeature/timestretch
Last change on this file since 2a94eca was 2a94eca, checked in by Paul Brossier <piem@piem.org>, 23 months ago

[io] add helpers to pad source output

  • Property mode set to 100644
File size: 4.6 KB
Line 
1/*
2  Copyright (C) 2016 Paul Brossier <piem@aubio.org>
3
4  This file is part of aubio.
5
6  aubio is free software: you can redistribute it and/or modify
7  it under the terms of the GNU General Public License as published by
8  the Free Software Foundation, either version 3 of the License, or
9  (at your option) any later version.
10
11  aubio is distributed in the hope that it will be useful,
12  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  GNU General Public License for more details.
15
16  You should have received a copy of the GNU General Public License
17  along with aubio.  If not, see <http://www.gnu.org/licenses/>.
18
19*/
20
21#include "aubio_priv.h"
22#include "fmat.h"
23
24uint_t
25aubio_io_validate_samplerate(const char_t *kind, const char_t *path, uint_t samplerate)
26{
27  if ((sint_t)(samplerate) <= 0) {
28    AUBIO_ERR("%s: failed creating %s, samplerate should be positive, not %d\n",
29        kind, path, samplerate);
30    return AUBIO_FAIL;
31  }
32  if ((sint_t)samplerate > AUBIO_MAX_SAMPLERATE) {
33    AUBIO_ERR("%s: failed creating %s, samplerate %dHz is too large\n",
34        kind, path, samplerate);
35    return AUBIO_FAIL;
36  }
37  return AUBIO_OK;
38}
39
40uint_t
41aubio_io_validate_channels(const char_t *kind, const char_t *path, uint_t channels)
42{
43  if ((sint_t)(channels) <= 0) {
44    AUBIO_ERR("sink_%s: failed creating %s, channels should be positive, not %d\n",
45        kind, path, channels);
46    return AUBIO_FAIL;
47  }
48  if (channels > AUBIO_MAX_CHANNELS) {
49    AUBIO_ERR("sink_%s: failed creating %s, too many channels (%d but %d available)\n",
50        kind, path, channels, AUBIO_MAX_CHANNELS);
51    return AUBIO_FAIL;
52  }
53  return AUBIO_OK;
54}
55
56uint_t
57aubio_source_validate_input_length(const char_t *kind, const char_t *path,
58    uint_t hop_size, uint_t read_data_length)
59{
60  uint_t length = hop_size;
61  if (hop_size < read_data_length) {
62    AUBIO_WRN("%s: partial read from %s, trying to read %d frames, but"
63        " hop_size is %d\n", kind, path, read_data_length, hop_size);
64  } else if (hop_size > read_data_length) {
65    AUBIO_WRN("%s: partial read from %s, trying to read %d frames into"
66        " a buffer of length %d\n", kind, path, hop_size, read_data_length);
67    length = read_data_length;
68  }
69  return length;
70}
71
72uint_t
73aubio_source_validate_input_channels(const char_t *kind, const char_t *path,
74    uint_t source_channels, uint_t read_data_height)
75{
76  uint_t channels = source_channels;
77  if (read_data_height < source_channels) {
78    AUBIO_WRN("%s: partial read from %s, trying to read %d channels,"
79        " but found output of height %d\n", kind, path, source_channels,
80        read_data_height);
81    channels = read_data_height;
82  } else if (read_data_height > source_channels) {
83    // do not show a warning when trying to read into more channels than
84    // the input source.
85#if 0
86    AUBIO_WRN("%s: partial read from %s, trying to read %d channels,"
87        " but found output of height %d\n", kind, path, source_channels,
88        read_data_height);
89#endif
90    channels = source_channels;
91  }
92  return channels;
93}
94
95void
96aubio_source_pad_output (fvec_t *read_data, uint_t source_read)
97{
98  uint_t i = 0;
99  if (source_read < read_data->length) {
100    for (i = source_read; i < read_data->length; i++) {
101      read_data->data[i] = 0.;
102    }
103  }
104}
105
106void
107aubio_source_pad_multi_output (fmat_t *read_data,
108    uint_t source_channels, uint_t source_read) {
109  uint_t i, j;
110  if (source_read < read_data->length) {
111    for (i = 0; i < read_data->height; i++) {
112      for (j = source_read; j < read_data->length; j++) {
113        read_data->data[i][j] = 0.;
114      }
115    }
116  }
117}
118
119uint_t
120aubio_sink_validate_input_length(const char_t *kind, const char_t *path,
121    uint_t max_size, uint_t write_data_length, uint_t write)
122{
123  uint_t can_write = write;
124
125  if (write > max_size) {
126    AUBIO_WRN("%s: partial write to %s, trying to write %d frames,"
127        " at most %d can be written at once\n", kind, path, write, max_size);
128    can_write = max_size;
129  }
130
131  if (can_write > write_data_length) {
132    AUBIO_WRN("%s: partial write to %s, trying to write %d frames,"
133        " but found input of length %d\n", kind, path, write,
134        write_data_length);
135    can_write = write_data_length;
136  }
137
138  return can_write;
139}
140
141uint_t
142aubio_sink_validate_input_channels(const char_t *kind, const char_t *path,
143    uint_t sink_channels, uint_t write_data_height)
144{
145  uint_t channels = sink_channels;
146  if (write_data_height < sink_channels) {
147    AUBIO_WRN("%s: partial write to %s, trying to write %d channels,"
148        " but found input of height %d\n", kind, path, sink_channels,
149        write_data_height);
150    channels = write_data_height;
151  }
152  return channels;
153}
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