static gboolean
check_container (GstDiscovererInfo *info,
GstEncodingProfile *profile)
{
GstDiscovererStreamInfo *stream_info;
GType stream_type;
GstCaps *stream_caps;
gboolean ret = FALSE;
const GstCaps *profile_caps = gst_encoding_profile_get_format (profile);
/* Top-level GstStreamInformation in the topology will be
* the container */
stream_info = gst_discoverer_info_get_stream_info (info);
stream_caps = gst_discoverer_stream_info_get_caps (stream_info);
stream_type = G_TYPE_FROM_INSTANCE (stream_info);
if (stream_type == GST_TYPE_DISCOVERER_CONTAINER_INFO &&
gst_caps_can_intersect (stream_caps, profile_caps))
ret = TRUE;
else if (stream_type != GST_TYPE_DISCOVERER_CONTAINER_INFO &&
gst_caps_is_empty (profile_caps))
ret = TRUE;
gst_discoverer_stream_info_unref (stream_info);
gst_caps_unref (stream_caps);
return ret;
}
static void
print_info (GstDiscovererInfo * info, GError * err)
{
GstDiscovererResult result = gst_discoverer_info_get_result (info);
GstDiscovererStreamInfo *sinfo;
g_print ("Done discovering %s\n", gst_discoverer_info_get_uri (info));
switch (result) {
case GST_DISCOVERER_OK:
{
break;
}
case GST_DISCOVERER_URI_INVALID:
{
g_print ("URI is not valid\n");
break;
}
case GST_DISCOVERER_ERROR:
{
g_print ("An error was encountered while discovering the file\n");
g_print (" %s\n", err->message);
break;
}
case GST_DISCOVERER_TIMEOUT:
{
g_print ("Analyzing URI timed out\n");
break;
}
case GST_DISCOVERER_BUSY:
{
g_print ("Discoverer was busy\n");
break;
}
case GST_DISCOVERER_MISSING_PLUGINS:
{
g_print ("Missing plugins\n");
if (verbose) {
gchar *tmp =
gst_structure_to_string (gst_discoverer_info_get_misc (info));
g_print (" (%s)\n", tmp);
g_free (tmp);
}
break;
}
}
if ((sinfo = gst_discoverer_info_get_stream_info (info))) {
g_print ("\nTopology:\n");
print_topology (sinfo, 1);
g_print ("\nProperties:\n");
print_properties (info, 1);
gst_discoverer_stream_info_unref (sinfo);
}
g_print ("\n");
}
static gboolean
check_encoding_profile (GstValidateMediaInfo * mi, GstDiscovererInfo * info)
{
gboolean ret = TRUE;
GstDiscovererStreamInfo *streaminfo;
streaminfo = gst_discoverer_info_get_stream_info (info);
mi->stream_info = gst_validate_stream_info_from_discoverer_info (streaminfo);
gst_discoverer_info_unref (streaminfo);
return ret;
}
static GstEncodingProfile *
make_profile_from_info (GstDiscovererInfo * info)
{
GstEncodingContainerProfile *profile = NULL;
GstDiscovererStreamInfo *sinfo = gst_discoverer_info_get_stream_info (info);
/* Get the container format */
if (GST_IS_DISCOVERER_CONTAINER_INFO (sinfo)) {
GList *tmp, *substreams;
profile = gst_encoding_container_profile_new ((gchar *) "concatenate", NULL,
gst_discoverer_stream_info_get_caps (sinfo), NULL);
substreams =
gst_discoverer_container_info_get_streams ((GstDiscovererContainerInfo
*) sinfo);
/* For each on the formats add stream profiles */
for (tmp = substreams; tmp; tmp = tmp->next) {
GstDiscovererStreamInfo *stream = GST_DISCOVERER_STREAM_INFO (tmp->data);
GstEncodingProfile *sprof = NULL;
if (GST_IS_DISCOVERER_VIDEO_INFO (stream)) {
sprof = (GstEncodingProfile *)
gst_encoding_video_profile_new (gst_discoverer_stream_info_get_caps
(stream), NULL, NULL, 1);
} else if (GST_IS_DISCOVERER_AUDIO_INFO (stream)) {
sprof = (GstEncodingProfile *)
gst_encoding_audio_profile_new (gst_discoverer_stream_info_get_caps
(stream), NULL, NULL, 1);
} else {
GST_WARNING ("Unsupported streams");
}
if (sprof)
gst_encoding_container_profile_add_profile (profile, sprof);
}
if (substreams)
gst_discoverer_stream_info_list_free (substreams);
} else {
GST_ERROR ("No container format !!!");
}
if (sinfo)
gst_discoverer_stream_info_unref (sinfo);
return GST_ENCODING_PROFILE (profile);
}
/**
* gst_encoding_profile_from_discoverer:
* @info: (transfer none): The #GstDiscovererInfo to read from
*
* Creates a #GstEncodingProfile matching the formats from the given
* #GstDiscovererInfo. Streams other than audio or video (eg,
* subtitles), are currently ignored.
*
* Returns: (transfer full): The new #GstEncodingProfile or %NULL.
*/
GstEncodingProfile *
gst_encoding_profile_from_discoverer (GstDiscovererInfo * info)
{
GstEncodingContainerProfile *profile;
GstDiscovererStreamInfo *sinfo;
GList *streams, *stream;
GstCaps *caps = NULL;
guint n_streams = 0;
if (!info || gst_discoverer_info_get_result (info) != GST_DISCOVERER_OK)
return NULL;
sinfo = gst_discoverer_info_get_stream_info (info);
if (!sinfo)
return NULL;
caps = gst_discoverer_stream_info_get_caps (sinfo);
GST_LOG ("Container: %" GST_PTR_FORMAT "\n", caps);
profile =
gst_encoding_container_profile_new ("auto-generated",
"Automatically generated from GstDiscovererInfo", caps, NULL);
gst_caps_unref (caps);
if (!profile) {
GST_ERROR ("Failed to create container profile from caps %" GST_PTR_FORMAT,
caps);
return NULL;
}
streams =
gst_discoverer_container_info_get_streams (GST_DISCOVERER_CONTAINER_INFO
(sinfo));
for (stream = streams; stream; stream = stream->next) {
if (add_stream_to_profile (profile,
(GstDiscovererStreamInfo *) stream->data))
n_streams++;
}
gst_discoverer_stream_info_list_free (streams);
if (n_streams == 0) {
GST_ERROR ("Failed to add any streams");
g_object_unref (profile);
return NULL;
}
return (GstEncodingProfile *) profile;
}
static void
print_info (GstDiscovererInfo * info, GError * err)
{
GstDiscovererResult result;
GstDiscovererStreamInfo *sinfo;
if (!info) {
g_print ("Could not discover URI\n");
g_print (" %s\n", err->message);
return;
}
result = gst_discoverer_info_get_result (info);
g_print ("Done discovering %s\n", gst_discoverer_info_get_uri (info));
switch (result) {
case GST_DISCOVERER_OK:
{
break;
}
case GST_DISCOVERER_URI_INVALID:
{
g_print ("URI is not valid\n");
break;
}
case GST_DISCOVERER_ERROR:
{
g_print ("An error was encountered while discovering the file\n");
g_print (" %s\n", err->message);
break;
}
case GST_DISCOVERER_TIMEOUT:
{
g_print ("Analyzing URI timed out\n");
break;
}
case GST_DISCOVERER_BUSY:
{
g_print ("Discoverer was busy\n");
break;
}
case GST_DISCOVERER_MISSING_PLUGINS:
{
g_print ("Missing plugins\n");
if (verbose) {
gint i = 0;
const gchar **installer_details =
gst_discoverer_info_get_missing_elements_installer_details (info);
while (installer_details[i]) {
g_print (" (%s)\n", installer_details[i]);
i++;
}
}
break;
}
}
if ((sinfo = gst_discoverer_info_get_stream_info (info))) {
g_print ("\nTopology:\n");
print_topology (sinfo, 1);
g_print ("\nProperties:\n");
print_properties (info, 1);
gst_discoverer_stream_info_unref (sinfo);
}
g_print ("\n");
}
/* This function is called every time the discoverer has information regarding
* one of the URIs we provided.*/
void on_discovered_cb (GstDiscoverer *discoverer, GstDiscovererInfo *info, GError *err, CustomData *data) {
GstDiscovererResult result;
const gchar *uri;
const GstTagList *tags;
GstDiscovererStreamInfo *sinfo;
uri = gst_discoverer_info_get_uri (info);
result = gst_discoverer_info_get_result (info);
switch (result) {
case GST_DISCOVERER_URI_INVALID:
g_print ("Invalid URI '%s'\n", uri);
break;
case GST_DISCOVERER_ERROR:
g_print ("Discoverer error: %s\n", err->message);
break;
case GST_DISCOVERER_TIMEOUT:
g_print ("Timeout\n");
break;
case GST_DISCOVERER_BUSY:
g_print ("Busy\n");
break;
case GST_DISCOVERER_MISSING_PLUGINS:{
const GstStructure *s;
gchar *str;
s = gst_discoverer_info_get_misc (info);
str = gst_structure_to_string (s);
g_print ("Missing plugins: %s\n", str);
g_free (str);
break;
}
case GST_DISCOVERER_OK:
g_print ("Discovered '%s'\n", uri);
break;
}
if (result != GST_DISCOVERER_OK) {
g_printerr ("This URI cannot be played\n");
//return;
}
/* If we got no error, show the retrieved information */
g_print ("\nDuration: %" GST_TIME_FORMAT "\n", GST_TIME_ARGS (gst_discoverer_info_get_duration (info)));
tags = gst_discoverer_info_get_tags (info);
if (tags) {
g_print ("Tags:\n");
gst_tag_list_foreach (tags, print_tag_foreach, GINT_TO_POINTER (1));
}
g_print ("Seekable: %s\n", (gst_discoverer_info_get_seekable (info) ? "yes" : "no"));
g_print ("\n");
sinfo = gst_discoverer_info_get_stream_info (info);
if (!sinfo)
return;
g_print ("Stream information:\n");
print_topology (sinfo, 1);
gst_discoverer_stream_info_unref (sinfo);
g_print ("\n");
}
gchar *
lgm_filename_to_uri (const gchar *filename)
{
gchar *uri, *path;
GError *err = NULL;
#ifdef G_OS_WIN32
if (g_path_is_absolute(filename) || !gst_uri_is_valid (filename)) {
#else
if (!gst_uri_is_valid (filename)) {
#endif
if (!g_path_is_absolute (filename)) {
gchar *cur_dir;
cur_dir = g_get_current_dir ();
path = g_build_filename (cur_dir, filename, NULL);
g_free (cur_dir);
} else {
path = g_strdup (filename);
}
uri = g_filename_to_uri (path, NULL, &err);
g_free (path);
path = NULL;
if (err != NULL) {
g_error_free (err);
return NULL;
}
} else {
uri = g_strdup (filename);
}
return uri;
}
GstDiscovererResult
lgm_discover_uri (
const gchar *filename, guint64 *duration, guint *width,
guint *height, guint *fps_n, guint *fps_d, guint *par_n, guint *par_d,
gchar **container, gchar **video_codec, gchar **audio_codec,
GError **err)
{
GstDiscoverer *discoverer;
GstDiscovererInfo *info;
GList *videos = NULL, *audios = NULL;
GstDiscovererStreamInfo *sinfo = NULL;
GstDiscovererVideoInfo *vinfo = NULL;
GstDiscovererAudioInfo *ainfo = NULL;
GstDiscovererResult ret;
gchar *uri;
uri = lgm_filename_to_uri (filename);
if (uri == NULL) {
return GST_DISCOVERER_URI_INVALID;
}
*duration = *width = *height = *fps_n = *fps_d = *par_n = *par_d = 0;
*container = *audio_codec = *video_codec = NULL;
discoverer = gst_discoverer_new (4 * GST_SECOND, err);
if (*err != NULL) {
g_free (uri);
return GST_DISCOVERER_ERROR;
}
info = gst_discoverer_discover_uri (discoverer, uri, err);
g_free (uri);
if (*err != NULL) {
if (info != NULL) {
return gst_discoverer_info_get_result (info);
} else {
return GST_DISCOVERER_ERROR;
}
}
sinfo = gst_discoverer_info_get_stream_info (info);
*duration = gst_discoverer_info_get_duration (info);
if (GST_IS_DISCOVERER_CONTAINER_INFO (sinfo)) {
GstCaps *caps;
caps = gst_discoverer_stream_info_get_caps (
GST_DISCOVERER_STREAM_INFO(sinfo));
*container = gst_pb_utils_get_codec_description (caps);
gst_caps_unref (caps);
}
if (GST_IS_DISCOVERER_AUDIO_INFO (sinfo)) {
ainfo = GST_DISCOVERER_AUDIO_INFO (sinfo);
} else {
audios = gst_discoverer_info_get_audio_streams (info);
if (audios != NULL) {
ainfo = audios->data;
}
}
if (ainfo != NULL) {
GstCaps *caps;
caps = gst_discoverer_stream_info_get_caps (
GST_DISCOVERER_STREAM_INFO (ainfo));
*audio_codec = gst_pb_utils_get_codec_description (caps);
gst_caps_unref (caps);
}
if (audios != NULL) {
gst_discoverer_stream_info_list_free (audios);
}
if (GST_IS_DISCOVERER_VIDEO_INFO (sinfo)) {
vinfo = GST_DISCOVERER_VIDEO_INFO (sinfo);
} else {
videos = gst_discoverer_info_get_video_streams (info);
if (videos != NULL) {
vinfo = videos->data;
}
}
if (vinfo != NULL) {
GstCaps *caps;
caps = gst_discoverer_stream_info_get_caps (
GST_DISCOVERER_STREAM_INFO (vinfo));
*video_codec = gst_pb_utils_get_codec_description (caps);
gst_caps_unref (caps);
*height = gst_discoverer_video_info_get_height (vinfo);
*width = gst_discoverer_video_info_get_width (vinfo);
*fps_n = gst_discoverer_video_info_get_framerate_num (vinfo);
*fps_d = gst_discoverer_video_info_get_framerate_denom (vinfo);
*par_n = gst_discoverer_video_info_get_par_num (vinfo);
*par_d = gst_discoverer_video_info_get_par_denom (vinfo);
}
if (videos != NULL) {
gst_discoverer_stream_info_list_free (videos);
}
ret = gst_discoverer_info_get_result (info);
gst_discoverer_info_unref (info);
g_object_unref (discoverer);
return ret;
}
