Changeset 3471 for pjproject/branches/projects/2.0-dev/pjsip/src/pjsua-lib/pjsua_media.c

Timestamp:

Mar 22, 2011 9:49:23 AM (14 years ago)

Author:

nanang

Message:

Re #1201: Added pjsua API for video devices and codecs management.

File:

• pjproject/branches/projects/2.0-dev/pjsip/src/pjsua-lib/pjsua_media.c (modified) (13 diffs)

pjproject/branches/projects/2.0-dev/pjsip/src/pjsua-lib/pjsua_media.c

@@ -59 +59 @@
 }
 
+
+PJ_DECL(pj_status_t)
+pjmedia_libswscale_converter_init(pjmedia_converter_mgr *mgr,
+                                  pj_pool_t *pool);
+
 /**
  * Init media subsystems.
@@ -310 +315 @@
     if (status != PJ_SUCCESS) {
         pjsua_perror(THIS_FILE, "Error initializing ffmpeg library",
+                     status);
+        return status;
+    }
+#endif
+
+#if PJMEDIA_HAS_VIDEO && PJMEDIA_HAS_LIBSWSCALE && PJMEDIA_HAS_LIBAVUTIL
+    status = pjmedia_libswscale_converter_init(NULL, pjsua_var.pool);
+    if (status != PJ_SUCCESS) {
+        pjsua_perror(THIS_FILE, "Error initializing libswscale converter",
                      status);
         return status;
@@ -1837 +1851 @@
                 call_med->strm.a.stream = NULL;
             }
-        } else if (call_med->type == PJMEDIA_TYPE_VIDEO) {
+        }
+
+#if PJMEDIA_HAS_VIDEO
+        else if (call_med->type == PJMEDIA_TYPE_VIDEO) {
             pjmedia_vid_stream *strm = call_med->strm.v.stream;
 
@@ -1873 +1890 @@
             }
         }
+#endif
 
         PJ_LOG(4,(THIS_FILE, "Media session call%02d:%d is destroyed",
@@ -2134 +2152 @@
 }
 
+
+#if PJMEDIA_HAS_VIDEO
+
 static pj_status_t video_channel_update(pjsua_call_media *call_med,
                                         pj_pool_t *tmp_pool,
@@ -2212 +2233 @@
 #endif
 
+        /* Try to get shared format ID between the capture device and 
+         * the encoder to avoid format conversion in the capture device.
+         */
+        if (si->dir & PJMEDIA_DIR_ENCODING) {
+            pjmedia_vid_dev_info dev_info;
+            pjmedia_vid_codec_info *codec_info = &si->codec_info;
+            unsigned i, j;
+
+            status = pjmedia_vid_dev_get_info(pjsua_var.vcap_dev, &dev_info);
+            if (status != PJ_SUCCESS)
+                return status;
+
+            /* Find matched format ID */
+            for (i = 0; i < codec_info->dec_fmt_id_cnt; ++i) {
+                for (j = 0; j < dev_info.fmt_cnt; ++j) {
+                    if (codec_info->dec_fmt_id[i] == 
+                        (pjmedia_format_id)dev_info.fmt[j].id)
+                    {
+                        /* Apply the matched format ID to the codec */
+                        si->codec_param->dec_fmt.id = codec_info->dec_fmt_id[i];
+                        /* Force outer loop to break */
+                        i = codec_info->dec_fmt_id_cnt;
+                        break;
+                    }
+                }
+            }
+        }
+
         /* Create session based on session info. */
         status = pjmedia_vid_stream_create(pjsua_var.med_endpt, NULL, si,
@@ -2235 +2284 @@
 
             status = pjmedia_vid_dev_default_param(
-                                tmp_pool, PJMEDIA_VID_DEFAULT_RENDER_DEV,
+                                tmp_pool, pjsua_var.vrdr_dev,
                                 &vport_param.vidparam);
             if (status != PJ_SUCCESS)
@@ -2275 +2324 @@
 
             status = pjmedia_vid_dev_default_param(
-                                tmp_pool, PJMEDIA_VID_DEFAULT_CAPTURE_DEV,
+                                tmp_pool, pjsua_var.vcap_dev,
                                 &vport_param.vidparam);
             if (status != PJ_SUCCESS)
@@ -2282 +2331 @@
             pjmedia_format_copy(&vport_param.vidparam.fmt,
                                 &media_port->info.fmt);
-
             vport_param.vidparam.dir = PJMEDIA_DIR_CAPTURE;
             vport_param.active = PJ_TRUE;
@@ -2353 +2401 @@
 }
 
+#endif
+
 
 pj_status_t pjsua_media_channel_update(pjsua_call_id call_id,
@@ -2395 +2445 @@
             }
             break;
+#if PJMEDIA_HAS_VIDEO
         case PJMEDIA_TYPE_VIDEO:
             status = video_channel_update(call_med, tmp_pool,
                                           local_sdp, remote_sdp);
             break;
+#endif
         default:
             break;
@@ -3772 +3824 @@
 
     if (count != 1)
-        return PJ_ENOTFOUND;
+        return (count > 1? PJ_ETOOMANY : PJ_ENOTFOUND);
 
     status = pjmedia_codec_mgr_get_default_param( codec_mgr, info, param);
@@ -3809 +3861 @@
     return status;
 }
+
+
+#if PJMEDIA_HAS_VIDEO
+
+/*****************************************************************************
+ * Video codecs.
+ */
+
+/*
+ * Enum all supported video codecs in the system.
+ */
+PJ_DEF(pj_status_t) pjsua_vid_enum_codecs( pjsua_codec_info id[],
+                                           unsigned *p_count )
+{
+    pjmedia_vid_codec_info info[32];
+    unsigned i, j, count, prio[32];
+    pj_status_t status;
+
+    count = PJ_ARRAY_SIZE(info);
+    status = pjmedia_vid_codec_mgr_enum_codecs(NULL, &count, info, prio);
+    if (status != PJ_SUCCESS) {
+        *p_count = 0;
+        return status;
+    }
+
+    for (i=0, j=0; i<count && j<*p_count; ++i) {
+        if (info[i].has_rtp_pack) {
+            pjmedia_vid_codec_info_to_id(&info[i], id[j].buf_, sizeof(id[j].buf_));
+            id[j].codec_id = pj_str(id[j].buf_);
+            id[j].priority = (pj_uint8_t) prio[i];
+            ++j;
+        }
+    }
+
+    *p_count = j;
+
+    return PJ_SUCCESS;
+}
+
+
+/*
+ * Change video codec priority.
+ */
+PJ_DEF(pj_status_t) pjsua_vid_codec_set_priority( const pj_str_t *codec_id,
+                                                  pj_uint8_t priority )
+{
+    const pj_str_t all = { NULL, 0 };
+
+    if (codec_id->slen==1 && *codec_id->ptr=='*')
+        codec_id = &all;
+
+    return pjmedia_vid_codec_mgr_set_codec_priority(NULL, codec_id,
+                                                    priority);
+}
+
+
+/*
+ * Get video codec parameters.
+ */
+PJ_DEF(pj_status_t) pjsua_vid_codec_get_param(
+                                        const pj_str_t *codec_id,
+                                        pjmedia_vid_codec_param *param)
+{
+    const pj_str_t all = { NULL, 0 };
+    const pjmedia_vid_codec_info *info;
+    unsigned count = 1;
+    pj_status_t status;
+
+    if (codec_id->slen==1 && *codec_id->ptr=='*')
+        codec_id = &all;
+
+    status = pjmedia_vid_codec_mgr_find_codecs_by_id(NULL, codec_id,
+                                                     &count, &info, NULL);
+    if (status != PJ_SUCCESS)
+        return status;
+
+    if (count != 1)
+        return (count > 1? PJ_ETOOMANY : PJ_ENOTFOUND);
+
+    status = pjmedia_vid_codec_mgr_get_default_param(NULL, info, param);
+    return status;
+}
+
+
+/*
+ * Set video codec parameters.
+ */
+PJ_DEF(pj_status_t) pjsua_vid_codec_set_param( 
+                                        const pj_str_t *codec_id,
+                                        const pjmedia_vid_codec_param *param)
+{
+    const pjmedia_vid_codec_info *info[2];
+    unsigned count = 2;
+    pj_status_t status;
+
+    status = pjmedia_vid_codec_mgr_find_codecs_by_id(NULL, codec_id,
+                                                     &count, info, NULL);
+    if (status != PJ_SUCCESS)
+        return status;
+
+    /* Codec ID should be specific */
+    if (count > 1) {
+        pj_assert(!"Codec ID is not specific");
+        return PJ_ETOOMANY;
+    }
+
+    status = pjmedia_vid_codec_mgr_set_default_param(NULL, pjsua_var.pool,
+                                                     info[0], param);
+    return status;
+}
+
+
+/*****************************************************************************
+ * Video devices.
+ */
+
+/*
+ * Enum all video devices installed in the system.
+ */
+PJ_DEF(pj_status_t) pjsua_vid_enum_devs(pjmedia_vid_dev_info info[],
+                                        unsigned *count)
+{
+    unsigned i, dev_count;
+
+    dev_count = pjmedia_vid_dev_count();
+    
+    if (dev_count > *count) dev_count = *count;
+
+    for (i=0; i<dev_count; ++i) {
+        pj_status_t status;
+
+        status = pjmedia_vid_dev_get_info(i, &info[i]);
+        if (status != PJ_SUCCESS)
+            return status;
+    }
+
+    *count = dev_count;
+
+    return PJ_SUCCESS;
+}
+
+
+/*
+ * Get currently active video devices.
+ */
+PJ_DEF(pj_status_t) pjsua_vid_get_dev(int *capture_dev, int *render_dev)
+{
+    if (capture_dev)
+        *capture_dev = pjsua_var.vcap_dev;
+    if (render_dev)
+        *render_dev = pjsua_var.vrdr_dev;
+
+    return PJ_SUCCESS;
+}
+
+
+/*
+ * Select video device for the next video sessions.
+ */
+PJ_DEF(pj_status_t) pjsua_vid_set_dev(int capture_dev, int render_dev)
+{
+    pjmedia_vid_dev_info info;
+    pj_status_t status;
+
+    if (capture_dev < 0)
+        capture_dev = PJMEDIA_VID_DEFAULT_CAPTURE_DEV;
+    if (render_dev < 0)
+        render_dev = PJMEDIA_VID_DEFAULT_RENDER_DEV;
+
+    status = pjmedia_vid_dev_get_info(capture_dev, &info);
+    if (status != PJ_SUCCESS)
+        return status;
+
+    status = pjmedia_vid_dev_get_info(render_dev, &info);
+    if (status != PJ_SUCCESS)
+        return status;
+
+    pjsua_var.vcap_dev = capture_dev;
+    pjsua_var.vrdr_dev = render_dev;
+
+    return PJ_SUCCESS;
+}
+
+
+/*
+ * Configure video device setting to the video device being used.
+ */
+PJ_DECL(pj_status_t) pjsua_vid_set_setting(pjmedia_vid_dev_cap cap,
+                                           const void *pval,
+                                           pj_bool_t keep)
+{
+    PJ_UNUSED_ARG(cap);
+    PJ_UNUSED_ARG(pval);
+    PJ_UNUSED_ARG(keep);
+    return PJ_ENOTSUP;
+}
+
+
+/*
+ * Retrieve a video device setting.
+ */
+PJ_DECL(pj_status_t) pjsua_vid_get_setting(pjmedia_aud_dev_cap cap,
+                                           void *pval)
+{
+    PJ_UNUSED_ARG(cap);
+    PJ_UNUSED_ARG(pval);
+    return PJ_ENOTSUP;
+}
+
+#endif /* PJMEDIA_HAS_VIDEO */