Input/wav: Add reset() function

[libsigrok.git] / src / input / wav.c

diff --git a/src/input/wav.c b/src/input/wav.c
index f16db3a396304cb63a22a11540e7753766af9670..0f56a4ad570c195f8f02b12eaeca8dae5e3c43af 100644 (file)
--- a/src/input/wav.c
+++ b/src/input/wav.c
@@ -242,15 +242,9 @@ static int process_buffer(struct sr_input *in)
        struct sr_config *src;
        int offset, chunk_samples, total_samples, processed, max_chunk_samples;
        int num_samples, i;
-       char channelname[8];
 
        inc = in->priv;
        if (!inc->started) {
-               for (i = 0; i < inc->num_channels; i++) {
-                       snprintf(channelname, 8, "CH%d", i + 1);
-                       sr_channel_new(in->sdi, i, SR_CHANNEL_ANALOG, TRUE, channelname);
-               }
-
                std_session_send_df_header(in->sdi, LOG_PREFIX);
 
                packet.type = SR_DF_META;
@@ -310,6 +304,7 @@ static int receive(struct sr_input *in, GString *buf)
 {
        struct context *inc;
        int ret;
+       char channelname[8];
 
        g_string_append_len(in->buf, buf->str, buf->len);
 
@@ -329,6 +324,11 @@ static int receive(struct sr_input *in, GString *buf)
                else if (ret != SR_OK)
                        return ret;
 
+               for (int i = 0; i < inc->num_channels; i++) {
+                       snprintf(channelname, 8, "CH%d", i + 1);
+                       sr_channel_new(in->sdi, i, SR_CHANNEL_ANALOG, TRUE, channelname);
+               }
+
                /* sdi is ready, notify frontend. */
                in->sdi_ready = TRUE;
                return SR_OK;
@@ -341,7 +341,6 @@ static int receive(struct sr_input *in, GString *buf)
 
 static int end(struct sr_input *in)
 {
-       struct sr_datafeed_packet packet;
        struct context *inc;
        int ret;
 
@@ -351,14 +350,22 @@ static int end(struct sr_input *in)
                ret = SR_OK;
 
        inc = in->priv;
-       if (inc->started) {
-               packet.type = SR_DF_END;
-               sr_session_send(in->sdi, &packet);
-       }
+       if (inc->started)
+               std_session_send_df_end(in->sdi, LOG_PREFIX);
 
        return ret;
 }
 
+static int reset(struct sr_input *in)
+{
+       struct context *inc = in->priv;
+
+       inc->started = FALSE;
+       g_string_truncate(in->buf, 0);
+
+       return SR_OK;
+}
+
 SR_PRIV struct sr_input_module input_wav = {
        .id = "wav",
        .name = "WAV",
@@ -369,4 +376,5 @@ SR_PRIV struct sr_input_module input_wav = {
        .init = init,
        .receive = receive,
        .end = end,
+       .reset = reset,
 };