X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Finput%2Fwav.c;h=1c0d4fd18082da643d6b2b0d083e277f1d7ff597;hb=f3616a0857c558fd0ff566ca6dc5730599be9194;hp=9eb5627f2ba49fbbf3c80b91ef575cd6fbeb20eb;hpb=89da5b3b54d3b87bff49e716c4d2b36080fe7a07;p=libsigrok.git diff --git a/src/input/wav.c b/src/input/wav.c index 9eb5627f..1c0d4fd1 100644 --- a/src/input/wav.c +++ b/src/input/wav.c @@ -235,40 +235,18 @@ static void send_chunk(const struct sr_input *in, int offset, int num_samples) sr_session_send(in->sdi, &packet); } -static int receive(struct sr_input *in, GString *buf) +static int process_buffer(struct sr_input *in) { + struct context *inc; struct sr_datafeed_packet packet; struct sr_datafeed_meta meta; struct sr_channel *ch; struct sr_config *src; - struct context *inc; int offset, chunk_samples, total_samples, processed, max_chunk_samples; - int num_samples, ret, i; + int num_samples, i; char channelname[8]; - g_string_append_len(in->buf, buf->str, buf->len); - - if (in->buf->len < MIN_DATA_CHUNK_OFFSET) { - /* - * Don't even try until there's enough room - * for the data segment to start. - */ - return SR_OK; - } - inc = in->priv; - if (!in->sdi_ready) { - if ((ret = parse_wav_header(in->buf, inc)) == SR_ERR_NA) - /* Not enough data yet. */ - return SR_OK; - else if (ret != SR_OK) - return ret; - - /* sdi is ready, notify frontend. */ - in->sdi_ready = TRUE; - return SR_OK; - } - if (!inc->started) { for (i = 0; i < inc->num_channels; i++) { snprintf(channelname, 8, "CH%d", i + 1); @@ -330,19 +308,57 @@ static int receive(struct sr_input *in, GString *buf) return SR_OK; } -static int cleanup(struct sr_input *in) +static int receive(struct sr_input *in, GString *buf) +{ + struct context *inc; + int ret; + + g_string_append_len(in->buf, buf->str, buf->len); + + if (in->buf->len < MIN_DATA_CHUNK_OFFSET) { + /* + * Don't even try until there's enough room + * for the data segment to start. + */ + return SR_OK; + } + + inc = in->priv; + if (!in->sdi_ready) { + if ((ret = parse_wav_header(in->buf, inc)) == SR_ERR_NA) + /* Not enough data yet. */ + return SR_OK; + else if (ret != SR_OK) + return ret; + + /* sdi is ready, notify frontend. */ + in->sdi_ready = TRUE; + return SR_OK; + } + + ret = process_buffer(in); + + return ret; +} + +static int end(struct sr_input *in) { struct sr_datafeed_packet packet; struct context *inc; + int ret; + + if (in->sdi_ready) + ret = process_buffer(in); + else + ret = SR_OK; inc = in->priv; if (inc->started) { - /* End of stream. */ packet.type = SR_DF_END; sr_session_send(in->sdi, &packet); } - return SR_OK; + return ret; } SR_PRIV struct sr_input_module input_wav = { @@ -353,6 +369,6 @@ SR_PRIV struct sr_input_module input_wav = { .format_match = format_match, .init = init, .receive = receive, - .cleanup = cleanup, + .end = end, };