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199 lines
5.2 KiB
C
199 lines
5.2 KiB
C
/* GStreamer
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* Copyright (C) 2008 David Schleef <ds@schleef.org>
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* Copyright (C) 2012 Collabora Ltd.
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* Author : Edward Hervey <edward@collabora.com>
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, 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 <gst/video/video.h>
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#include "gstvideoutils.h"
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/**
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* SECTION:gstvideoutils
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* @title: GstVideo Codec utility function
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* @short_description: Extra utility functions for video codecs
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*/
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#include <string.h>
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G_DEFINE_BOXED_TYPE (GstVideoCodecFrame, gst_video_codec_frame,
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(GBoxedCopyFunc) gst_video_codec_frame_ref,
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(GBoxedFreeFunc) gst_video_codec_frame_unref);
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static void
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_gst_video_codec_frame_free (GstVideoCodecFrame * frame)
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{
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g_return_if_fail (frame != NULL);
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GST_DEBUG ("free frame %p", frame);
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if (frame->input_buffer) {
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gst_buffer_unref (frame->input_buffer);
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}
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if (frame->output_buffer) {
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gst_buffer_unref (frame->output_buffer);
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}
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g_list_free_full (frame->events, (GDestroyNotify) gst_event_unref);
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frame->events = NULL;
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if (frame->user_data_destroy_notify)
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frame->user_data_destroy_notify (frame->user_data);
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g_slice_free (GstVideoCodecFrame, frame);
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}
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/**
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* gst_video_codec_frame_set_user_data:
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* @frame: a #GstVideoCodecFrame
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* @user_data: private data
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* @notify: (closure user_data): a #GDestroyNotify
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*
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* Sets @user_data on the frame and the #GDestroyNotify that will be called when
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* the frame is freed. Allows to attach private data by the subclass to frames.
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*
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* If a @user_data was previously set, then the previous set @notify will be called
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* before the @user_data is replaced.
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*/
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void
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gst_video_codec_frame_set_user_data (GstVideoCodecFrame * frame,
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gpointer user_data, GDestroyNotify notify)
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{
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if (frame->user_data_destroy_notify)
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frame->user_data_destroy_notify (frame->user_data);
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frame->user_data = user_data;
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frame->user_data_destroy_notify = notify;
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}
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/**
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* gst_video_codec_frame_get_user_data:
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* @frame: a #GstVideoCodecFrame
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*
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* Gets private data set on the frame by the subclass via
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* gst_video_codec_frame_set_user_data() previously.
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*
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* Returns: (transfer none): The previously set user_data
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*/
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gpointer
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gst_video_codec_frame_get_user_data (GstVideoCodecFrame * frame)
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{
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return frame->user_data;
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}
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/**
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* gst_video_codec_frame_ref:
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* @frame: a #GstVideoCodecFrame
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*
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* Increases the refcount of the given frame by one.
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*
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* Returns: @buf
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*/
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GstVideoCodecFrame *
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gst_video_codec_frame_ref (GstVideoCodecFrame * frame)
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{
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g_return_val_if_fail (frame != NULL, NULL);
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GST_TRACE ("%p ref %d->%d", frame, frame->ref_count, frame->ref_count + 1);
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g_atomic_int_inc (&frame->ref_count);
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return frame;
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}
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/**
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* gst_video_codec_frame_unref:
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* @frame: a #GstVideoCodecFrame
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*
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* Decreases the refcount of the frame. If the refcount reaches 0, the frame
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* will be freed.
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*/
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void
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gst_video_codec_frame_unref (GstVideoCodecFrame * frame)
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{
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g_return_if_fail (frame != NULL);
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g_return_if_fail (frame->ref_count > 0);
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GST_TRACE ("%p unref %d->%d", frame, frame->ref_count, frame->ref_count - 1);
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if (g_atomic_int_dec_and_test (&frame->ref_count)) {
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_gst_video_codec_frame_free (frame);
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}
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}
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/**
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* gst_video_codec_state_ref:
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* @state: a #GstVideoCodecState
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*
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* Increases the refcount of the given state by one.
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*
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* Returns: @buf
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*/
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GstVideoCodecState *
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gst_video_codec_state_ref (GstVideoCodecState * state)
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{
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g_return_val_if_fail (state != NULL, NULL);
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GST_TRACE ("%p ref %d->%d", state, state->ref_count, state->ref_count + 1);
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g_atomic_int_inc (&state->ref_count);
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return state;
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}
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static void
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_gst_video_codec_state_free (GstVideoCodecState * state)
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{
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GST_DEBUG ("free state %p", state);
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if (state->caps)
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gst_caps_unref (state->caps);
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if (state->allocation_caps)
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gst_caps_unref (state->allocation_caps);
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if (state->codec_data)
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gst_buffer_unref (state->codec_data);
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g_slice_free (GstVideoCodecState, state);
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}
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/**
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* gst_video_codec_state_unref:
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* @state: a #GstVideoCodecState
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*
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* Decreases the refcount of the state. If the refcount reaches 0, the state
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* will be freed.
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*/
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void
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gst_video_codec_state_unref (GstVideoCodecState * state)
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{
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g_return_if_fail (state != NULL);
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g_return_if_fail (state->ref_count > 0);
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GST_TRACE ("%p unref %d->%d", state, state->ref_count, state->ref_count - 1);
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if (g_atomic_int_dec_and_test (&state->ref_count)) {
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_gst_video_codec_state_free (state);
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}
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}
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G_DEFINE_BOXED_TYPE (GstVideoCodecState, gst_video_codec_state,
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(GBoxedCopyFunc) gst_video_codec_state_ref,
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(GBoxedFreeFunc) gst_video_codec_state_unref);
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