Changeset 4793 for pjproject/trunk/pjmedia/src/pjmedia/wav_player.c

Timestamp:

Mar 14, 2014 4:09:50 AM (10 years ago)

Author:

bennylp

Message:

Closed #1748: enhancements to WAV player API

File:

• pjproject/trunk/pjmedia/src/pjmedia/wav_player.c (modified) (2 diffs)

pjproject/trunk/pjmedia/src/pjmedia/wav_player.c

@@ -426 +426 @@
 
 /*
+ * Get additional info about the file player.
+ */
+PJ_DEF(pj_status_t) pjmedia_wav_player_get_info(
+                                        pjmedia_port *port,
+                                        pjmedia_wav_player_info *info)
+{
+    struct file_reader_port *fport;
+    PJ_ASSERT_RETURN(port && info, PJ_EINVAL);
+
+    pj_bzero(info, sizeof(*info));
+
+    /* Check that this is really a player port */
+    PJ_ASSERT_RETURN(port->info.signature == SIGNATURE, PJ_EINVALIDOP);
+
+    fport = (struct file_reader_port*) port;
+
+    if (fport->fmt_tag == PJMEDIA_WAVE_FMT_TAG_PCM) {
+        info->fmt_id = PJMEDIA_FORMAT_PCM;
+        info->payload_bits_per_sample = 16;
+    } else if (fport->fmt_tag == PJMEDIA_WAVE_FMT_TAG_ULAW) {
+        info->fmt_id = PJMEDIA_FORMAT_ULAW;
+        info->payload_bits_per_sample = 8;
+    } else if (fport->fmt_tag == PJMEDIA_WAVE_FMT_TAG_ALAW) {
+        info->fmt_id = PJMEDIA_FORMAT_ALAW;
+        info->payload_bits_per_sample = 8;
+    } else {
+        pj_assert(!"Unsupported format");
+        return PJ_ENOTSUP;
+    }
+
+    info->size_bytes = pjmedia_wav_player_get_len(port);
+    info->size_samples = info->size_bytes /
+                         (info->payload_bits_per_sample / 8);
+
+    return PJ_SUCCESS;
+}
+
+/*
  * Get the data length, in bytes.
  */
@@ -485 +523 @@
 
 /*
- * Get the file play position of WAV player.
+ * Get the file play position of WAV player (in bytes).
  */
 PJ_DEF(pj_ssize_t) pjmedia_wav_player_port_get_pos( pjmedia_port *port )