+++ /dev/null
-/*
- * gstvaapiutils_tsb.c - Timestamp buffer store
- *
- * Copyright (C) 2011 Intel Corporation
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public License
- * as published by the Free Software Foundation; either version 2.1
- * 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301 USA
- */
-
-#include "gstvaapiutils_tsb.h"
-#include <glib.h>
-
-typedef struct _GstVaapiTSBEntry GstVaapiTSBEntry;
-
-struct _GstVaapiTSB {
- GList *list;
-};
-
-struct _GstVaapiTSBEntry {
- GstBuffer *buffer;
- guint32 buffer_size;
- guint32 offset;
-};
-
-static GstVaapiTSBEntry *
-gst_vaapi_tsb_entry_new(GstBuffer *buffer)
-{
- GstVaapiTSBEntry *e;
-
- e = g_slice_new(GstVaapiTSBEntry);
- if (!e)
- return NULL;
-
- e->buffer = gst_buffer_ref(buffer);
- e->buffer_size = GST_BUFFER_SIZE(buffer);
- e->offset = 0;
- return e;
-}
-
-static void
-gst_vaapi_tsb_entry_destroy(GstVaapiTSBEntry *e)
-{
- if (!e)
- return;
-
- if (e->buffer) {
- gst_buffer_unref(e->buffer);
- e->buffer = NULL;
- }
- g_slice_free(GstVaapiTSBEntry, e);
-}
-
-/**
- * gst_vaapi_tsb_new:
- *
- * Creates a new #GstVaapiTSB.
- *
- * Return value: a new #GstVaapiTSB
- */
-GstVaapiTSB *
-gst_vaapi_tsb_new()
-{
- GstVaapiTSB *tsb;
-
- tsb = g_new(GstVaapiTSB, 1);
- if (!tsb)
- return NULL;
-
- tsb->list = NULL;
- return tsb;
-}
-
-/**
- * gst_vaapi_tsb_destroy:
- * @tsb: a #GstVaapiTSB
- *
- * Destroys the #GstVaapiTSB. All buffers are unreferenced.
- */
-void
-gst_vaapi_tsb_destroy(GstVaapiTSB *tsb)
-{
- if (!tsb)
- return;
-
- if (tsb->list) {
- g_list_foreach(tsb->list, (GFunc)gst_vaapi_tsb_entry_destroy, NULL);
- g_list_free(tsb->list);
- tsb->list = NULL;
- }
- g_free(tsb);
-}
-
-/**
- * gst_vaapi_tsb_push:
- * @tsb: a #GstVaapiTSB
- * @buffer: a #GstBuffer
- *
- * Pushes @buffer to the timestamp buffer store. The TSB owns and
- * maintains an extra reference to the buffer.
- *
- * Return value: %TRUE if success, %FALSE otherwise
- */
-gboolean
-gst_vaapi_tsb_push(GstVaapiTSB *tsb, GstBuffer *buffer)
-{
- GList *l;
- GstVaapiTSBEntry *e;
-
- if (!tsb)
- return FALSE;
-
- e = gst_vaapi_tsb_entry_new(buffer);
- if (!e)
- return FALSE;
-
- l = g_list_append(tsb->list, e);
- if (!l)
- return FALSE;
-
- tsb->list = l;
- return TRUE;
-}
-
-/**
- * gst_vaapi_tsb_pop:
- * @tsb: a #GstVaapiTSB
- * @size: number of bytes to remove from the TSB
- *
- * Removes @size bytes from the @tsb.
- */
-void
-gst_vaapi_tsb_pop(GstVaapiTSB *tsb, gsize size)
-{
- GList *l;
- GstVaapiTSBEntry *e;
- guint32 n;
-
- if (!tsb || !tsb->list)
- return;
-
- l = tsb->list;
- e = l->data;
- while (size > 0) {
- n = MIN(e->buffer_size - e->offset, size);
- e->offset += n;
- size -= n;
- if (e->offset == e->buffer_size) {
- gst_vaapi_tsb_entry_destroy(e);
- l = l->next;
- g_list_free_1(tsb->list);
- tsb->list = l;
- if (!l)
- return;
- e = l->data;
- }
- }
-}
-
-/**
- * gst_vaapi_tsb_peek:
- * @tsb: a #GstVaapiTSB
- *
- * Returns the current #GstBuffer.
- *
- * Return value: current #GstBuffer, or %NULL if none was found
- */
-GstBuffer *
-gst_vaapi_tsb_peek(GstVaapiTSB *tsb)
-{
- GstVaapiTSBEntry *e;
-
- if (!tsb || !tsb->list)
- return NULL;
-
- e = tsb->list->data;
- if (!e)
- return NULL;
-
- return e->buffer;
-}
-
-/**
- * gst_vaapi_tsb_get_timestamp:
- * @tsb: a #GstVaapiTSB
- *
- * Returns the timestamp for the current #GstBuffer.
- *
- * Return value: current #GstBuffer timestamp, or %GST_CLOCK_TIME_NONE if none was found
- */
-GstClockTime
-gst_vaapi_tsb_get_timestamp(GstVaapiTSB *tsb)
-{
- GstBuffer *buffer;
-
- buffer = gst_vaapi_tsb_peek(tsb);
- if (!buffer)
- return GST_CLOCK_TIME_NONE;
-
- return GST_BUFFER_TIMESTAMP(buffer);
-}
-
-/**
- * gst_vaapi_tsb_get_size:
- * @tsb: a #GstVaapiTSB
- *
- * Returns the size of the #GstVaapiTSB.
- *
- * Return value: how many bytes left to consume from @tsb
- */
-gsize
-gst_vaapi_tsb_get_size(GstVaapiTSB *tsb)
-{
- GList *l;
- GstVaapiTSBEntry *e;
- guint32 size = 0;
-
- if (!tsb || !tsb->list)
- return 0;
-
- for (l = tsb->list; l != NULL; l = l->next) {
- e = l->data;
- size += e->buffer_size - e->offset;
- }
- return size;
-}
+++ /dev/null
-/*
- * gstvaapiutils_tsb.h - Timestamp buffer store
- *
- * Copyright (C) 2011 Intel Corporation
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public License
- * as published by the Free Software Foundation; either version 2.1
- * 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301 USA
- */
-
-#ifndef GST_VAAPI_UTILS_TSB_H
-#define GST_VAAPI_UTILS_TSB_H
-
-#include "config.h"
-#include <gst/gstbuffer.h>
-
-typedef struct _GstVaapiTSB GstVaapiTSB;
-
-GstVaapiTSB *
-gst_vaapi_tsb_new()
- attribute_hidden;
-
-void
-gst_vaapi_tsb_destroy(GstVaapiTSB *tsb)
- attribute_hidden;
-
-gboolean
-gst_vaapi_tsb_push(GstVaapiTSB *tsb, GstBuffer *buffer)
- attribute_hidden;
-
-void
-gst_vaapi_tsb_pop(GstVaapiTSB *tsb, gsize size)
- attribute_hidden;
-
-GstBuffer *
-gst_vaapi_tsb_peek(GstVaapiTSB *tsb)
- attribute_hidden;
-
-GstClockTime
-gst_vaapi_tsb_get_timestamp(GstVaapiTSB *tsb)
- attribute_hidden;
-
-gsize
-gst_vaapi_tsb_get_size(GstVaapiTSB *tsb)
- attribute_hidden;
-
-#endif /* GST_VAAPI_UTILS_TSB_H */
projects / platform / upstream / gstreamer-vaapi.git / commitdiff