mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-19 02:20:20 +00:00
b967bf531b
We can't subclass miniobject so use GObject as the base class,
976 lines
24 KiB
C
976 lines
24 KiB
C
/* GStreamer
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* Copyright (C) 2010 Collabora Multimedia
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* 2010 Nokia Corporation
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "pbutils.h"
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#include "pbutils-private.h"
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static GstDiscovererStreamInfo
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* gst_discoverer_info_copy_int (GstDiscovererStreamInfo * info,
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GHashTable * stream_map);
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static GstDiscovererContainerInfo
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* gst_stream_container_info_copy_int (GstDiscovererContainerInfo * ptr,
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GHashTable * stream_map);
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static GstDiscovererAudioInfo
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* gst_discoverer_audio_info_copy_int (GstDiscovererAudioInfo * ptr);
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static GstDiscovererVideoInfo
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* gst_discoverer_video_info_copy_int (GstDiscovererVideoInfo * ptr);
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/* Per-stream information */
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G_DEFINE_TYPE (GstDiscovererStreamInfo, gst_discoverer_stream_info,
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G_TYPE_OBJECT);
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static void
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gst_discoverer_stream_info_init (GstDiscovererStreamInfo * info)
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{
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/* Nothing needs initialization */
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}
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static void
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gst_discoverer_stream_info_finalize (GObject * object)
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{
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GstDiscovererStreamInfo *info = (GstDiscovererStreamInfo *) object;
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if (info->next)
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g_object_unref ((GObject *) info->next);
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if (info->caps)
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gst_caps_unref (info->caps);
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if (info->tags)
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gst_tag_list_free (info->tags);
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if (info->misc)
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gst_structure_free (info->misc);
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}
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static void
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gst_discoverer_stream_info_class_init (GObjectClass * klass)
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{
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klass->finalize = gst_discoverer_stream_info_finalize;
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}
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static GstDiscovererStreamInfo *
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gst_discoverer_stream_info_new (void)
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{
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return (GstDiscovererStreamInfo *)
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g_object_new (GST_TYPE_DISCOVERER_STREAM_INFO, NULL);
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}
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static GstDiscovererStreamInfo *
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gst_discoverer_info_copy_int (GstDiscovererStreamInfo * info,
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GHashTable * stream_map)
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{
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GstDiscovererStreamInfo *ret;
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GType ltyp;
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g_return_val_if_fail (info != NULL, NULL);
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ltyp = G_TYPE_FROM_INSTANCE (info);
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if (ltyp == GST_TYPE_DISCOVERER_CONTAINER_INFO) {
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ret = (GstDiscovererStreamInfo *)
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gst_stream_container_info_copy_int (
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(GstDiscovererContainerInfo *) info, stream_map);
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} else if (ltyp == GST_TYPE_DISCOVERER_AUDIO_INFO) {
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ret = (GstDiscovererStreamInfo *)
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gst_discoverer_audio_info_copy_int ((GstDiscovererAudioInfo *) info);
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} else if (ltyp == GST_TYPE_DISCOVERER_VIDEO_INFO) {
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ret = (GstDiscovererStreamInfo *)
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gst_discoverer_video_info_copy_int ((GstDiscovererVideoInfo *) info);
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} else
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ret = gst_discoverer_stream_info_new ();
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if (info->next) {
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ret->next = gst_discoverer_info_copy_int (info->next, stream_map);
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ret->next->previous = ret;
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}
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if (info->caps)
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ret->caps = gst_caps_copy (info->caps);
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if (info->tags)
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ret->tags = gst_tag_list_copy (info->tags);
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if (info->misc)
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ret->misc = gst_structure_copy (info->misc);
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if (stream_map)
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g_hash_table_insert (stream_map, info, ret);
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return ret;
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}
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/* Container information */
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G_DEFINE_TYPE (GstDiscovererContainerInfo, gst_discoverer_container_info,
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GST_TYPE_DISCOVERER_STREAM_INFO);
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static void
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gst_discoverer_container_info_init (GstDiscovererContainerInfo * info)
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{
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/* Nothing to initialize */
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}
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static GstDiscovererContainerInfo *
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gst_discoverer_container_info_new (void)
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{
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return (GstDiscovererContainerInfo *)
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g_object_new (GST_TYPE_DISCOVERER_CONTAINER_INFO, NULL);
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}
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static void
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gst_discoverer_container_info_finalize (GObject * object)
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{
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GstDiscovererContainerInfo *info = (GstDiscovererContainerInfo *) object;
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GList *tmp;
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for (tmp = ((GstDiscovererContainerInfo *) info)->streams; tmp;
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tmp = tmp->next)
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g_object_unref ((GObject *) tmp->data);
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gst_discoverer_stream_info_list_free (info->streams);
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gst_discoverer_stream_info_finalize ((GObject *) info);
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}
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static void
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gst_discoverer_container_info_class_init (GObjectClass * klass)
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{
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klass->finalize = gst_discoverer_container_info_finalize;
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}
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static GstDiscovererContainerInfo *
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gst_stream_container_info_copy_int (GstDiscovererContainerInfo * ptr,
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GHashTable * stream_map)
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{
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GstDiscovererContainerInfo *ret;
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GList *tmp;
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g_return_val_if_fail (ptr != NULL, NULL);
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ret = gst_discoverer_container_info_new ();
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for (tmp = ((GstDiscovererContainerInfo *) ptr)->streams; tmp;
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tmp = tmp->next) {
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GstDiscovererStreamInfo *subtop = gst_discoverer_info_copy_int (tmp->data,
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stream_map);
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ret->streams = g_list_append (ret->streams, subtop);
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if (stream_map)
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g_hash_table_insert (stream_map, tmp->data, subtop);
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}
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return ret;
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}
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/* Audio information */
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G_DEFINE_TYPE (GstDiscovererAudioInfo, gst_discoverer_audio_info,
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GST_TYPE_DISCOVERER_STREAM_INFO);
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static void
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gst_discoverer_audio_info_class_init (GstDiscovererAudioInfoClass * klass)
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{
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/* Nothing to initialize */
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}
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static void
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gst_discoverer_audio_info_init (GstDiscovererAudioInfo * info)
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{
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/* Nothing to initialize */
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}
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static GstDiscovererAudioInfo *
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gst_discoverer_audio_info_new (void)
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{
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return (GstDiscovererAudioInfo *)
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g_object_new (GST_TYPE_DISCOVERER_AUDIO_INFO, NULL);
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}
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static GstDiscovererAudioInfo *
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gst_discoverer_audio_info_copy_int (GstDiscovererAudioInfo * ptr)
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{
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GstDiscovererAudioInfo *ret;
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ret = gst_discoverer_audio_info_new ();
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ret->channels = ptr->channels;
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ret->sample_rate = ptr->sample_rate;
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ret->depth = ptr->depth;
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ret->bitrate = ptr->bitrate;
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ret->max_bitrate = ptr->max_bitrate;
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return ret;
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}
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/* Video information */
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G_DEFINE_TYPE (GstDiscovererVideoInfo, gst_discoverer_video_info,
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GST_TYPE_DISCOVERER_STREAM_INFO);
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static void
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gst_discoverer_video_info_class_init (GObjectClass * klass)
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{
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/* Nothing to initialize */
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}
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static void
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gst_discoverer_video_info_init (GstDiscovererVideoInfo * info)
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{
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/* Nothing to initialize */
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}
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static GstDiscovererVideoInfo *
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gst_discoverer_video_info_new (void)
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{
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return (GstDiscovererVideoInfo *)
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g_object_new (GST_TYPE_DISCOVERER_VIDEO_INFO, NULL);
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}
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static GstDiscovererVideoInfo *
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gst_discoverer_video_info_copy_int (GstDiscovererVideoInfo * ptr)
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{
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GstDiscovererVideoInfo *ret;
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ret = gst_discoverer_video_info_new ();
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ret->width = ptr->width;
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ret->height = ptr->height;
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ret->depth = ptr->depth;
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ret->framerate_num = ptr->framerate_num;
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ret->framerate_denom = ptr->framerate_denom;
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ret->par_num = ptr->par_num;
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ret->par_denom = ptr->par_denom;
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ret->interlaced = ptr->interlaced;
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ret->bitrate = ptr->bitrate;
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ret->max_bitrate = ptr->max_bitrate;
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ret->is_image = ptr->is_image;
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return ret;
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}
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/* Global stream information */
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G_DEFINE_TYPE (GstDiscovererInfo, gst_discoverer_info, G_TYPE_OBJECT);
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static void
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gst_discoverer_info_init (GstDiscovererInfo * info)
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{
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/* Nothing needs initialization */
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}
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static void
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gst_discoverer_info_finalize (GObject * object)
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{
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GstDiscovererInfo *info = (GstDiscovererInfo *) object;
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g_free (info->uri);
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if (info->stream_info)
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g_object_unref ((GObject *) info->stream_info);
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if (info->misc)
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gst_structure_free (info->misc);
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g_list_free (info->stream_list);
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if (info->tags)
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gst_tag_list_free (info->tags);
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}
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static GstDiscovererInfo *
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gst_discoverer_info_new (void)
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{
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return (GstDiscovererInfo *) g_object_new (GST_TYPE_DISCOVERER_INFO, NULL);
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}
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GstDiscovererInfo *
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gst_discoverer_info_copy (GstDiscovererInfo * ptr)
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{
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GstDiscovererInfo *ret;
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GHashTable *stream_map = g_hash_table_new (g_direct_hash, NULL);
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GList *tmp;
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g_return_val_if_fail (ptr != NULL, NULL);
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ret = gst_discoverer_info_new ();
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ret->uri = g_strdup (ptr->uri);
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if (ptr->stream_info) {
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ret->stream_info = gst_discoverer_info_copy_int (ptr->stream_info,
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stream_map);
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}
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ret->duration = ptr->duration;
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if (ptr->misc)
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ret->misc = gst_structure_copy (ptr->misc);
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/* We need to set up the new list of streams to correspond to old one. The
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* list just contains a set of pointers to streams in the stream_info tree,
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* so we keep a map of old stream info objects to the corresponding new
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* ones and use that to figure out correspondence in stream_list. */
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for (tmp = ptr->stream_list; tmp; tmp = tmp->next) {
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GstDiscovererStreamInfo *old_stream = (GstDiscovererStreamInfo *) tmp->data;
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GstDiscovererStreamInfo *new_stream = g_hash_table_lookup (stream_map,
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old_stream);
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g_assert (new_stream != NULL);
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ret->stream_list = g_list_append (ret->stream_list, new_stream);
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}
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if (ptr->tags)
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ret->tags = gst_tag_list_copy (ptr->tags);
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g_hash_table_destroy (stream_map);
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return ret;
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}
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static void
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gst_discoverer_info_class_init (GObjectClass * klass)
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{
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klass->finalize = gst_discoverer_info_finalize;
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}
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/**
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* gst_discoverer_stream_info_list_free:
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* @infos: a #GList of #GstDiscovererStreamInfo
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*
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* Decrements the reference count of all contained #GstDiscovererStreamInfo
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* and fress the #GList.
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*/
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void
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gst_discoverer_stream_info_list_free (GList * infos)
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{
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GList *tmp;
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for (tmp = infos; tmp; tmp = tmp->next)
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gst_discoverer_stream_info_unref ((GstDiscovererStreamInfo *) tmp->data);
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g_list_free (infos);
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}
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/**
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* gst_discoverer_info_get_streams:
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* @info: a #GstDiscovererInfo
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* @streamtype: a #GType derived from #GstDiscovererStreamInfo
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*
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* Finds the #GstDiscovererStreamInfo contained in @info that match the
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* given @streamtype.
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*
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* Returns: (transfer full) (element-type Gst.DiscovererStreamInfo): A #GList of
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* matching #GstDiscovererStreamInfo. The caller should free it with
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* gst_discoverer_stream_info_list_free().
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*
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* Since: 0.10.31
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*/
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GList *
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gst_discoverer_info_get_streams (GstDiscovererInfo * info, GType streamtype)
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{
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GList *tmp, *res = NULL;
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for (tmp = info->stream_list; tmp; tmp = tmp->next) {
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GstDiscovererStreamInfo *stmp = (GstDiscovererStreamInfo *) tmp->data;
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if (G_TYPE_CHECK_INSTANCE_TYPE (stmp, streamtype))
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res = g_list_append (res, gst_discoverer_stream_info_ref (stmp));
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}
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return res;
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}
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/**
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* gst_discoverer_info_get_audio_streams:
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* @info: a #GstDiscovererInfo
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*
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* Finds all the #GstDiscovererAudioInfo contained in @info
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*
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* Returns: (transfer full) (element-type Gst.DiscovererStreamInfo): A #GList of
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* matching #GstDiscovererStreamInfo. The caller should free it with
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* gst_discoverer_stream_info_list_free().
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*
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* Since: 0.10.31
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*/
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GList *
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gst_discoverer_info_get_audio_streams (GstDiscovererInfo * info)
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{
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return gst_discoverer_info_get_streams (info, GST_TYPE_DISCOVERER_AUDIO_INFO);
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}
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/**
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* gst_discoverer_info_get_video_streams:
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* @info: a #GstDiscovererInfo
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*
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* Finds all the #GstDiscovererVideoInfo contained in @info
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*
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* Returns: (transfer full) (element-type Gst.DiscovererStreamInfo): A #GList of
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* matching #GstDiscovererStreamInfo. The caller should free it with
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* gst_discoverer_stream_info_list_free().
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*
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* Since: 0.10.31
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*/
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GList *
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gst_discoverer_info_get_video_streams (GstDiscovererInfo * info)
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{
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return gst_discoverer_info_get_streams (info, GST_TYPE_DISCOVERER_VIDEO_INFO);
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}
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/**
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* gst_discoverer_info_get_container_streams:
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* @info: a #GstDiscovererInfo
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*
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* Finds all the #GstDiscovererContainerInfo contained in @info
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*
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* Returns: (transfer full) (element-type Gst.DiscovererStreamInfo): A #GList of
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* matching #GstDiscovererStreamInfo. The caller should free it with
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* gst_discoverer_stream_info_list_free().
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*
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* Since: 0.10.31
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*/
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GList *
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gst_discoverer_info_get_container_streams (GstDiscovererInfo * info)
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{
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return gst_discoverer_info_get_streams (info,
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GST_TYPE_DISCOVERER_CONTAINER_INFO);
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}
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/**
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* gst_discoverer_stream_info_get_stream_type_nick:
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* @info: a #GstDiscovererStreamInfo
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*
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* Returns: a human readable name for the stream type of the given @info (ex : "audio",
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* "container",...).
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*
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* Since: 0.10.31
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*/
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const gchar *
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gst_discoverer_stream_info_get_stream_type_nick (GstDiscovererStreamInfo * info)
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{
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if (GST_IS_DISCOVERER_CONTAINER_INFO (info))
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return "container";
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if (GST_IS_DISCOVERER_AUDIO_INFO (info))
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return "audio";
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if (GST_IS_DISCOVERER_VIDEO_INFO (info)) {
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if (gst_discoverer_video_info_is_image ((GstDiscovererVideoInfo *)
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info))
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return "video(image)";
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else
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return "video";
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}
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return "unknown";
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}
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/* ACCESSORS */
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#define GENERIC_ACCESSOR_CODE(parent, parenttype, parentgtype, fieldname, type, failval) \
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type parent##_get_##fieldname(const parenttype info) { \
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g_return_val_if_fail(G_TYPE_CHECK_INSTANCE_TYPE((info), parentgtype), failval); \
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return (info)->fieldname; \
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}
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|
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/**
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* gst_discoverer_stream_info_get_previous:
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* @info: a #GstDiscovererStreamInfo
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*
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* Returns: (transfer full): the previous #GstDiscovererStreamInfo in a chain.
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* %NULL for starting points. Unref with #gst_discoverer_stream_info_unref
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* after usage.
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*
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* Since: 0.10.31
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*/
|
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GstDiscovererStreamInfo *
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gst_discoverer_stream_info_get_previous (GstDiscovererStreamInfo * info)
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{
|
|
g_return_val_if_fail (GST_IS_DISCOVERER_STREAM_INFO (info), NULL);
|
|
|
|
if (info->previous)
|
|
return gst_discoverer_stream_info_ref (info->previous);
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* gst_discoverer_stream_info_get_next:
|
|
* @info: a #GstDiscovererStreamInfo
|
|
*
|
|
* Returns: (transfer full): the next #GstDiscovererStreamInfo in a chain. %NULL
|
|
* for final streams.
|
|
* Unref with #gst_discoverer_stream_info_unref after usage.
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
GstDiscovererStreamInfo *
|
|
gst_discoverer_stream_info_get_next (GstDiscovererStreamInfo * info)
|
|
{
|
|
g_return_val_if_fail (GST_IS_DISCOVERER_STREAM_INFO (info), NULL);
|
|
|
|
if (info->next)
|
|
return gst_discoverer_stream_info_ref (info->next);
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/**
|
|
* gst_discoverer_stream_info_get_caps:
|
|
* @info: a #GstDiscovererStreamInfo
|
|
*
|
|
* Returns: (transfer full): the #GstCaps of the stream. Unref with
|
|
* #gst_caps_unref after usage.
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
GstCaps *
|
|
gst_discoverer_stream_info_get_caps (GstDiscovererStreamInfo * info)
|
|
{
|
|
g_return_val_if_fail (GST_IS_DISCOVERER_STREAM_INFO (info), NULL);
|
|
|
|
if (info->caps)
|
|
return gst_caps_ref (info->caps);
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* gst_discoverer_stream_info_get_tags:
|
|
* @info: a #GstDiscovererStreamInfo
|
|
*
|
|
* Returns: (transfer none): the tags contained in this stream. If you wish to
|
|
* use the tags after the life-time of @info you will need to copy them.
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
|
|
const GstTagList *
|
|
gst_discoverer_stream_info_get_tags (GstDiscovererStreamInfo * info)
|
|
{
|
|
g_return_val_if_fail (GST_IS_DISCOVERER_STREAM_INFO (info), NULL);
|
|
|
|
return info->tags;
|
|
}
|
|
|
|
/**
|
|
* gst_discoverer_stream_info_get_misc:
|
|
* @info: a #GstDiscovererStreamInfo
|
|
*
|
|
* Returns: (transfer none): additional information regarding the stream (for
|
|
* example codec version, profile, etc..). If you wish to use the #GstStructure
|
|
* after the life-time of @info you will need to copy it.
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
const GstStructure *
|
|
gst_discoverer_stream_info_get_misc (GstDiscovererStreamInfo * info)
|
|
{
|
|
g_return_val_if_fail (GST_IS_DISCOVERER_STREAM_INFO (info), NULL);
|
|
|
|
return info->misc;
|
|
}
|
|
|
|
/* GstDiscovererContainerInfo */
|
|
|
|
/**
|
|
* gst_discoverer_container_info_get_streams:
|
|
* @info: a #GstDiscovererStreamInfo
|
|
*
|
|
* Returns: (transfer full) (element-type Gst.DiscovererStreamInfo): the list of
|
|
* #GstDiscovererStreamInfo this container stream offers.
|
|
* Free with gst_discoverer_stream_info_list_free() after usage.
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
|
|
GList *
|
|
gst_discoverer_container_info_get_streams (GstDiscovererContainerInfo * info)
|
|
{
|
|
GList *res = NULL, *tmp;
|
|
|
|
g_return_val_if_fail (GST_IS_DISCOVERER_CONTAINER_INFO (info), NULL);
|
|
|
|
for (tmp = info->streams; tmp; tmp = tmp->next)
|
|
res =
|
|
g_list_append (res,
|
|
gst_discoverer_stream_info_ref ((GstDiscovererStreamInfo *) tmp->data));
|
|
|
|
return res;
|
|
}
|
|
|
|
/* GstDiscovererAudioInfo */
|
|
|
|
#define AUDIO_INFO_ACCESSOR_CODE(fieldname, type, failval) \
|
|
GENERIC_ACCESSOR_CODE(gst_discoverer_audio_info, GstDiscovererAudioInfo*, \
|
|
GST_TYPE_DISCOVERER_AUDIO_INFO, \
|
|
fieldname, type, failval)
|
|
|
|
/**
|
|
* gst_discoverer_audio_info_get_channels:
|
|
* @info: a #GstDiscovererAudioInfo
|
|
*
|
|
* Returns: the number of channels in the stream.
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
|
|
AUDIO_INFO_ACCESSOR_CODE (channels, guint, 0);
|
|
|
|
/**
|
|
* gst_discoverer_audio_info_get_sample_rate:
|
|
* @info: a #GstDiscovererAudioInfo
|
|
*
|
|
* Returns: the sample rate of the stream in Hertz.
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
|
|
AUDIO_INFO_ACCESSOR_CODE (sample_rate, guint, 0);
|
|
|
|
/**
|
|
* gst_discoverer_audio_info_get_depth:
|
|
* @info: a #GstDiscovererAudioInfo
|
|
*
|
|
* Returns: the number of bits used per sample in each channel.
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
|
|
AUDIO_INFO_ACCESSOR_CODE (depth, guint, 0);
|
|
|
|
/**
|
|
* gst_discoverer_audio_info_get_bitrate:
|
|
* @info: a #GstDiscovererAudioInfo
|
|
*
|
|
* Returns: the average or nominal bitrate of the stream in bits/second.
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
|
|
AUDIO_INFO_ACCESSOR_CODE (bitrate, guint, 0);
|
|
|
|
/**
|
|
* gst_discoverer_audio_info_get_max_bitrate:
|
|
* @info: a #GstDiscovererAudioInfo
|
|
*
|
|
* Returns: the maximum bitrate of the stream in bits/second.
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
|
|
AUDIO_INFO_ACCESSOR_CODE (max_bitrate, guint, 0);
|
|
|
|
/* GstDiscovererVideoInfo */
|
|
|
|
#define VIDEO_INFO_ACCESSOR_CODE(fieldname, type, failval) \
|
|
GENERIC_ACCESSOR_CODE(gst_discoverer_video_info, GstDiscovererVideoInfo*, \
|
|
GST_TYPE_DISCOVERER_VIDEO_INFO, \
|
|
fieldname, type, failval)
|
|
|
|
/**
|
|
* gst_discoverer_video_info_get_width:
|
|
* @info: a #GstDiscovererVideoInfo
|
|
*
|
|
* Returns: the width of the video stream in pixels.
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
|
|
VIDEO_INFO_ACCESSOR_CODE (width, guint, 0);
|
|
|
|
/**
|
|
* gst_discoverer_video_info_get_height:
|
|
* @info: a #GstDiscovererVideoInfo
|
|
*
|
|
* Returns: the height of the video stream in pixels.
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
|
|
VIDEO_INFO_ACCESSOR_CODE (height, guint, 0);
|
|
|
|
/**
|
|
* gst_discoverer_video_info_get_depth:
|
|
* @info: a #GstDiscovererVideoInfo
|
|
*
|
|
* Returns: the depth in bits of the video stream.
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
|
|
VIDEO_INFO_ACCESSOR_CODE (depth, guint, 0);
|
|
|
|
/**
|
|
* gst_discoverer_video_info_get_framerate_num:
|
|
* @info: a #GstDiscovererVideoInfo
|
|
*
|
|
* Returns: the framerate of the video stream (numerator).
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
|
|
VIDEO_INFO_ACCESSOR_CODE (framerate_num, guint, 0);
|
|
|
|
/**
|
|
* gst_discoverer_video_info_get_framerate_denom:
|
|
* @info: a #GstDiscovererVideoInfo
|
|
*
|
|
* Returns: the framerate of the video stream (denominator).
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
|
|
VIDEO_INFO_ACCESSOR_CODE (framerate_denom, guint, 0);
|
|
|
|
/**
|
|
* gst_discoverer_video_info_get_par_num:
|
|
* @info: a #GstDiscovererVideoInfo
|
|
*
|
|
* Returns: the Pixel Aspect Ratio (PAR) of the video stream (numerator).
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
|
|
VIDEO_INFO_ACCESSOR_CODE (par_num, guint, 0);
|
|
|
|
/**
|
|
* gst_discoverer_video_info_get_par_denom:
|
|
* @info: a #GstDiscovererVideoInfo
|
|
*
|
|
* Returns: the Pixel Aspect Ratio (PAR) of the video stream (denominator).
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
|
|
VIDEO_INFO_ACCESSOR_CODE (par_denom, guint, 0);
|
|
|
|
/**
|
|
* gst_discoverer_video_info_is_interlaced:
|
|
* @info: a #GstDiscovererVideoInfo
|
|
*
|
|
* Returns: %TRUE if the stream is interlaced, else %FALSE.
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
gboolean
|
|
gst_discoverer_video_info_is_interlaced (const GstDiscovererVideoInfo * info)
|
|
{
|
|
g_return_val_if_fail (GST_IS_DISCOVERER_VIDEO_INFO (info), FALSE);
|
|
|
|
return info->interlaced;
|
|
}
|
|
|
|
/**
|
|
* gst_discoverer_video_info_get_bitrate:
|
|
* @info: a #GstDiscovererVideoInfo
|
|
*
|
|
* Returns: the average or nominal bitrate of the video stream in bits/second.
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
|
|
VIDEO_INFO_ACCESSOR_CODE (bitrate, guint, 0);
|
|
|
|
/**
|
|
* gst_discoverer_video_info_get_max_bitrate:
|
|
* @info: a #GstDiscovererVideoInfo
|
|
*
|
|
* Returns: the maximum bitrate of the video stream in bits/second.
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
|
|
VIDEO_INFO_ACCESSOR_CODE (max_bitrate, guint, 0);
|
|
|
|
/**
|
|
* gst_discoverer_video_info_is_image:
|
|
* @info: a #GstDiscovererVideoInfo
|
|
*
|
|
* Returns: #TRUE if the video stream corresponds to an image (i.e. only contains
|
|
* one frame).
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
gboolean
|
|
gst_discoverer_video_info_is_image (const GstDiscovererVideoInfo * info)
|
|
{
|
|
g_return_val_if_fail (GST_IS_DISCOVERER_VIDEO_INFO (info), FALSE);
|
|
|
|
return info->is_image;
|
|
}
|
|
|
|
/* GstDiscovererInfo */
|
|
|
|
#define DISCOVERER_INFO_ACCESSOR_CODE(fieldname, type, failval) \
|
|
GENERIC_ACCESSOR_CODE(gst_discoverer_info, GstDiscovererInfo*, \
|
|
GST_TYPE_DISCOVERER_INFO, \
|
|
fieldname, type, failval)
|
|
|
|
/**
|
|
* gst_discoverer_info_get_uri:
|
|
* @info: a #GstDiscovererInfo
|
|
*
|
|
* Returns: (transfer none): the URI to which this information corresponds to.
|
|
* Copy it if you wish to use it after the life-time of @info.
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
|
|
DISCOVERER_INFO_ACCESSOR_CODE (uri, const gchar *, NULL);
|
|
|
|
/**
|
|
* gst_discoverer_info_get_result:
|
|
* @info: a #GstDiscovererInfo
|
|
*
|
|
* Returns: the result of the discovery as a #GstDiscovererResult.
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
|
|
DISCOVERER_INFO_ACCESSOR_CODE (result, GstDiscovererResult, GST_DISCOVERER_OK);
|
|
|
|
/**
|
|
* gst_discoverer_info_get_stream_info:
|
|
* @info: a #GstDiscovererInfo
|
|
*
|
|
* Returns: (transfer full): the structure (or topology) of the URI as a
|
|
* #GstDiscovererStreamInfo.
|
|
* This structure can be traversed to see the original hierarchy. Unref with
|
|
* gst_discoverer_stream_info_unref() after usage.
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
|
|
GstDiscovererStreamInfo *
|
|
gst_discoverer_info_get_stream_info (GstDiscovererInfo * info)
|
|
{
|
|
g_return_val_if_fail (GST_IS_DISCOVERER_INFO (info), NULL);
|
|
|
|
if (info->stream_info)
|
|
return gst_discoverer_stream_info_ref (info->stream_info);
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* gst_discoverer_info_get_stream_list:
|
|
* @info: a #GstDiscovererInfo
|
|
*
|
|
* Returns: (transfer full) (element-type Gst.DiscovererStreamInfo): the list of
|
|
* all streams contained in the #info. Free after usage
|
|
* with gst_discoverer_stream_info_list_free().
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
GList *
|
|
gst_discoverer_info_get_stream_list (GstDiscovererInfo * info)
|
|
{
|
|
GList *res = NULL, *tmp;
|
|
|
|
g_return_val_if_fail (GST_IS_DISCOVERER_INFO (info), NULL);
|
|
|
|
for (tmp = info->stream_list; tmp; tmp = tmp->next)
|
|
res =
|
|
g_list_append (res,
|
|
gst_discoverer_stream_info_ref ((GstDiscovererStreamInfo *) tmp->data));
|
|
|
|
return res;
|
|
}
|
|
|
|
/**
|
|
* gst_discoverer_info_get_duration:
|
|
* @info: a #GstDiscovererInfo
|
|
*
|
|
* Returns: the duration of the URI in #GstClockTime (nanoseconds).
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
|
|
DISCOVERER_INFO_ACCESSOR_CODE (duration, GstClockTime, GST_CLOCK_TIME_NONE);
|
|
|
|
/**
|
|
* gst_discoverer_info_get_seekable:
|
|
* @info: a #GstDiscovererInfo
|
|
*
|
|
* Returns: the wheter the URI is seekable.
|
|
*
|
|
* Since: 0.10.32
|
|
*/
|
|
|
|
DISCOVERER_INFO_ACCESSOR_CODE (seekable, gboolean, FALSE);
|
|
|
|
/**
|
|
* gst_discoverer_info_get_misc:
|
|
* @info: a #GstDiscovererInfo
|
|
*
|
|
* Returns: (transfer none): Miscellaneous information stored as a #GstStructure
|
|
* (for example: information about missing plugins). If you wish to use the
|
|
* #GstStructure after the life-time of @info, you will need to copy it.
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
|
|
DISCOVERER_INFO_ACCESSOR_CODE (misc, const GstStructure *, NULL);
|
|
|
|
/**
|
|
* gst_discoverer_info_get_tags:
|
|
* @info: a #GstDiscovererInfo
|
|
*
|
|
* Returns: (transfer none): all tags contained in the %URI. If you wish to use
|
|
* the tags after the life-time of @info, you will need to copy them.
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
|
|
DISCOVERER_INFO_ACCESSOR_CODE (tags, const GstTagList *, NULL);
|
|
|
|
/**
|
|
* gst_discoverer_info_ref:
|
|
* @info: a #GstDiscovererInfo
|
|
*
|
|
* Increments the reference count of @info.
|
|
*
|
|
* Returns: the same #GstDiscovererInfo object
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
|
|
/**
|
|
* gst_discoverer_info_unref:
|
|
* @info: a #GstDiscovererInfo
|
|
*
|
|
* Decrements the reference count of @info.
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
|
|
/**
|
|
* gst_discoverer_stream_info_ref:
|
|
* @info: a #GstDiscovererStreamInfo
|
|
*
|
|
* Increments the reference count of @info.
|
|
*
|
|
* Returns: the same #GstDiscovererStreamInfo object
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
|
|
/**
|
|
* gst_discoverer_stream_info_unref:
|
|
* @info: a #GstDiscovererStreamInfo
|
|
*
|
|
* Decrements the reference count of @info.
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|