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input/wav: Put internal buffer on the heap instead of the stack. 

Increasing the buffer/chunk size could cause issues when trying to put
large arrays on the stack.
This commit is contained in:
Uwe Hermann 2018-04-18 23:25:25 +02:00
parent a33e4be826
commit 2cff7a2ba7
1 changed files with 3 additions and 2 deletions
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5
src/input/wav.c
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@ -189,15 +189,15 @@ static void send_chunk(const struct sr_input *in, int offset, int num_samples)
struct sr_analog_meaning meaning; struct sr_analog_meaning meaning;
struct sr_analog_spec spec; struct sr_analog_spec spec;
struct context *inc; struct context *inc;
float fdata[CHUNK_SIZE]; float *fdata;
int total_samples, samplenum; int total_samples, samplenum;
char *s, *d; char *s, *d;
inc = in->priv; inc = in->priv;
s = in->buf->str + offset; s = in->buf->str + offset;
fdata = g_malloc0(CHUNK_SIZE * sizeof(float));
d = (char *)fdata; d = (char *)fdata;
memset(fdata, 0, CHUNK_SIZE * sizeof(float));
total_samples = num_samples * inc->num_channels; total_samples = num_samples * inc->num_channels;
for (samplenum = 0; samplenum < total_samples; samplenum++) { for (samplenum = 0; samplenum < total_samples; samplenum++) {
if (inc->fmt_code == WAVE_FORMAT_PCM_) { if (inc->fmt_code == WAVE_FORMAT_PCM_) {
@ -238,6 +238,7 @@ static void send_chunk(const struct sr_input *in, int offset, int num_samples)
analog.meaning->mqflags = 0; analog.meaning->mqflags = 0;
analog.meaning->unit = 0; analog.meaning->unit = 0;
sr_session_send(in->sdi, &packet); sr_session_send(in->sdi, &packet);
g_free(fdata);
} }
static int process_buffer(struct sr_input *in) static int process_buffer(struct sr_input *in)