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/* GStreamer
* Copyright (C) 2008 David Schleef <ds@schleef.org>
* Copyright (C) 2012 Collabora Ltd.
* Author : Edward Hervey <edward@collabora.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/video/video.h>
#include "gstvideoutils.h"
/**
* SECTION:gstvideoutils
* @title: GstVideo Codec utility function
* @short_description: Extra utility functions for video codecs
*/
#include <string.h>
G_DEFINE_BOXED_TYPE (GstVideoCodecFrame, gst_video_codec_frame,
(GBoxedCopyFunc) gst_video_codec_frame_ref,
(GBoxedFreeFunc) gst_video_codec_frame_unref);
static void
_gst_video_codec_frame_free (GstVideoCodecFrame * frame)
{
g_return_if_fail (frame != NULL);
GST_DEBUG ("free frame %p", frame);
if (frame->input_buffer) {
gst_buffer_unref (frame->input_buffer);
}
if (frame->output_buffer) {
gst_buffer_unref (frame->output_buffer);
}
g_list_free_full (frame->events, (GDestroyNotify) gst_event_unref);
frame->events = NULL;
if (frame->user_data_destroy_notify)
frame->user_data_destroy_notify (frame->user_data);
g_slice_free (GstVideoCodecFrame, frame);
}
/**
* gst_video_codec_frame_set_user_data:
* @frame: a #GstVideoCodecFrame
* @user_data: private data
* @notify: (closure user_data): a #GDestroyNotify
*
* Sets @user_data on the frame and the #GDestroyNotify that will be called when
* the frame is freed. Allows to attach private data by the subclass to frames.
*
* If a @user_data was previously set, then the previous set @notify will be called
* before the @user_data is replaced.
*/
void
gst_video_codec_frame_set_user_data (GstVideoCodecFrame * frame,
gpointer user_data, GDestroyNotify notify)
{
if (frame->user_data_destroy_notify)
frame->user_data_destroy_notify (frame->user_data);
frame->user_data = user_data;
frame->user_data_destroy_notify = notify;
}
/**
* gst_video_codec_frame_get_user_data:
* @frame: a #GstVideoCodecFrame
*
* Gets private data set on the frame by the subclass via
* gst_video_codec_frame_set_user_data() previously.
*
* Returns: (transfer none): The previously set user_data
*/
gpointer
gst_video_codec_frame_get_user_data (GstVideoCodecFrame * frame)
{
return frame->user_data;
}
/**
* gst_video_codec_frame_ref:
* @frame: a #GstVideoCodecFrame
*
* Increases the refcount of the given frame by one.
*
* Returns: @buf
*/
GstVideoCodecFrame *
gst_video_codec_frame_ref (GstVideoCodecFrame * frame)
{
g_return_val_if_fail (frame != NULL, NULL);
GST_TRACE ("%p ref %d->%d", frame, frame->ref_count, frame->ref_count + 1);
g_atomic_int_inc (&frame->ref_count);
return frame;
}
/**
* gst_video_codec_frame_unref:
* @frame: a #GstVideoCodecFrame
*
* Decreases the refcount of the frame. If the refcount reaches 0, the frame
* will be freed.
*/
void
gst_video_codec_frame_unref (GstVideoCodecFrame * frame)
{
g_return_if_fail (frame != NULL);
g_return_if_fail (frame->ref_count > 0);
GST_TRACE ("%p unref %d->%d", frame, frame->ref_count, frame->ref_count - 1);
if (g_atomic_int_dec_and_test (&frame->ref_count)) {
_gst_video_codec_frame_free (frame);
}
}
/**
* gst_video_codec_state_ref:
* @state: a #GstVideoCodecState
*
* Increases the refcount of the given state by one.
*
* Returns: @buf
*/
GstVideoCodecState *
gst_video_codec_state_ref (GstVideoCodecState * state)
{
g_return_val_if_fail (state != NULL, NULL);
GST_TRACE ("%p ref %d->%d", state, state->ref_count, state->ref_count + 1);
g_atomic_int_inc (&state->ref_count);
return state;
}
static void
_gst_video_codec_state_free (GstVideoCodecState * state)
{
GST_DEBUG ("free state %p", state);
if (state->caps)
gst_caps_unref (state->caps);
if (state->allocation_caps)
gst_caps_unref (state->allocation_caps);
if (state->codec_data)
gst_buffer_unref (state->codec_data);
if (state->mastering_display_info)
g_slice_free (GstVideoMasteringDisplayInfo, state->mastering_display_info);
if (state->content_light_level)
g_slice_free (GstVideoContentLightLevel, state->content_light_level);
g_slice_free (GstVideoCodecState, state);
}
/**
* gst_video_codec_state_unref:
* @state: a #GstVideoCodecState
*
* Decreases the refcount of the state. If the refcount reaches 0, the state
* will be freed.
*/
void
gst_video_codec_state_unref (GstVideoCodecState * state)
{
g_return_if_fail (state != NULL);
g_return_if_fail (state->ref_count > 0);
GST_TRACE ("%p unref %d->%d", state, state->ref_count, state->ref_count - 1);
if (g_atomic_int_dec_and_test (&state->ref_count)) {
_gst_video_codec_state_free (state);
}
}
G_DEFINE_BOXED_TYPE (GstVideoCodecState, gst_video_codec_state,
(GBoxedCopyFunc) gst_video_codec_state_ref,
(GBoxedFreeFunc) gst_video_codec_state_unref);
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