gstreamer/sys/vdpau/h264/gsth264dpb.c
2010-06-24 16:28:36 +02:00

398 lines
9.5 KiB
C

/* GStreamer
*
* Copyright (C) 2009 Carl-Anton Ingmarsson <ca.ingmarsson@gmail.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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "gsth264dpb.h"
/* Properties */
enum
{
PROP_0,
PROP_NUM_REF_FRAMES,
PROP_MAX_LONGTERM_IDX
};
GST_DEBUG_CATEGORY_STATIC (h264dpb_debug);
#define GST_CAT_DEFAULT h264dpb_debug
#define DEBUG_INIT \
GST_DEBUG_CATEGORY_INIT (h264dpb_debug, "h264dpb", 0, \
"H264 DPB");
G_DEFINE_TYPE_WITH_CODE (GstH264DPB, gst_h264_dpb, G_TYPE_OBJECT, DEBUG_INIT);
void
gst_h264_dpb_fill_reference_frames (GstH264DPB * dpb,
VdpReferenceFrameH264 reference_frames[16])
{
GstVdpH264Frame **frames;
guint i;
frames = dpb->frames;
for (i = 0; i < dpb->n_frames; i++) {
GstVdpH264Frame *frame = frames[i];
reference_frames[i].surface =
GST_VDP_VIDEO_BUFFER (GST_VIDEO_FRAME_CAST (frame)->src_buffer)->
surface;
reference_frames[i].is_long_term = frame->is_long_term;
reference_frames[i].top_is_reference = frame->is_reference;
reference_frames[i].bottom_is_reference = frame->is_reference;
reference_frames[i].field_order_cnt[0] = frame->poc;
reference_frames[i].field_order_cnt[1] = frame->poc;
reference_frames[i].frame_idx = frame->frame_idx;
}
for (i = dpb->n_frames; i < 16; i++) {
reference_frames[i].surface = VDP_INVALID_HANDLE;
reference_frames[i].top_is_reference = VDP_FALSE;
reference_frames[i].bottom_is_reference = VDP_FALSE;
}
}
static void
gst_h264_dpb_remove (GstH264DPB * dpb, guint idx)
{
GstVdpH264Frame **frames;
guint i;
frames = dpb->frames;
gst_video_frame_unref (GST_VIDEO_FRAME_CAST (frames[idx]));
dpb->n_frames--;
for (i = idx; i < dpb->n_frames; i++)
frames[i] = frames[i + 1];
}
static void
gst_h264_dpb_output (GstH264DPB * dpb, guint idx)
{
GstVdpH264Frame *frame = dpb->frames[idx];
gst_video_frame_ref (GST_VIDEO_FRAME_CAST (frame));
dpb->output (dpb, frame);
frame->output_needed = FALSE;
if (!frame->is_reference)
gst_h264_dpb_remove (dpb, idx);
}
static gboolean
gst_h264_dpb_bump (GstH264DPB * dpb, guint poc)
{
GstVdpH264Frame **frames;
guint i;
gint bump_idx;
frames = dpb->frames;
bump_idx = -1;
for (i = 0; i < dpb->n_frames; i++) {
if (frames[i]->output_needed) {
bump_idx = i;
break;
}
}
if (bump_idx != -1) {
for (i = bump_idx + 1; i < dpb->n_frames; i++) {
if (frames[i]->output_needed && (frames[i]->poc < frames[bump_idx]->poc)) {
bump_idx = i;
}
}
if (frames[bump_idx]->poc < poc) {
gst_h264_dpb_output (dpb, bump_idx);
return TRUE;
}
}
return FALSE;
}
gboolean
gst_h264_dpb_add (GstH264DPB * dpb, GstVdpH264Frame * h264_frame)
{
GstVdpH264Frame **frames;
GST_DEBUG ("add frame with poc: %d", h264_frame->poc);
frames = dpb->frames;
if (h264_frame->is_reference && h264_frame->is_long_term &&
(h264_frame->frame_idx > dpb->max_longterm_frame_idx))
h264_frame->is_reference = FALSE;
if (h264_frame->is_reference) {
while (dpb->n_frames == dpb->max_frames) {
if (!gst_h264_dpb_bump (dpb, G_MAXUINT)) {
GST_ERROR_OBJECT (dpb, "Couldn't make room in DPB");
return FALSE;
}
}
dpb->frames[dpb->n_frames++] = h264_frame;
}
else {
while (gst_h264_dpb_bump (dpb, h264_frame->poc));
dpb->output (dpb, h264_frame);
}
return TRUE;
}
void
gst_h264_dpb_flush (GstH264DPB * dpb, gboolean output)
{
GstVideoFrame **frames;
guint i;
GST_DEBUG ("flush");
if (output)
while (gst_h264_dpb_bump (dpb, G_MAXUINT));
frames = (GstVideoFrame **) dpb->frames;
for (i = 0; i < dpb->n_frames; i++)
gst_video_frame_unref (frames[i]);
dpb->n_frames = 0;
}
void
gst_h264_dpb_mark_sliding (GstH264DPB * dpb)
{
GstVdpH264Frame **frames;
guint i;
gint mark_idx = -1;
if (dpb->n_frames != dpb->max_frames)
return;
frames = dpb->frames;
for (i = 0; i < dpb->n_frames; i++) {
if (frames[i]->is_reference && !frames[i]->is_long_term) {
mark_idx = i;
break;
}
}
if (mark_idx != -1) {
for (i = mark_idx; i < dpb->n_frames; i++) {
if (frames[i]->is_reference && !frames[i]->is_long_term &&
frames[i]->frame_idx < frames[mark_idx]->frame_idx)
mark_idx = i;
}
frames[mark_idx]->is_reference = FALSE;
if (!frames[mark_idx]->output_needed)
gst_h264_dpb_remove (dpb, mark_idx);
}
}
void
gst_h264_dpb_mark_long_term (GstH264DPB * dpb, guint16 pic_num,
guint16 long_term_frame_idx)
{
GstVdpH264Frame **frames;
guint i;
gint mark_idx = -1;
frames = dpb->frames;
for (i = 0; i < dpb->n_frames; i++) {
if (frames[i]->is_reference && !frames[i]->is_long_term &&
frames[i]->frame_idx == pic_num) {
mark_idx = i;
break;
}
}
if (mark_idx != -1) {
frames[mark_idx]->is_long_term = TRUE;
frames[mark_idx]->frame_idx = long_term_frame_idx;
}
}
void
gst_h264_dpb_mark_short_term_unused (GstH264DPB * dpb, guint16 pic_num)
{
GstVdpH264Frame **frames;
guint i;
gint mark_idx = -1;
frames = dpb->frames;
for (i = 0; i < dpb->n_frames; i++) {
if (frames[i]->is_reference && !frames[i]->is_long_term &&
frames[i]->frame_idx == pic_num) {
mark_idx = i;
break;
}
}
if (mark_idx != -1) {
frames[mark_idx]->is_reference = FALSE;
if (!frames[mark_idx]->output_needed)
gst_h264_dpb_remove (dpb, mark_idx);
}
}
void
gst_h264_dpb_mark_long_term_unused (GstH264DPB * dpb, guint16 long_term_pic_num)
{
GstVdpH264Frame **frames;
guint i;
gint mark_idx = -1;
frames = dpb->frames;
for (i = 0; i < dpb->n_frames; i++) {
if (frames[i]->is_reference && frames[i]->is_long_term &&
frames[i]->frame_idx == long_term_pic_num) {
mark_idx = i;
break;
}
}
if (mark_idx != -1) {
frames[mark_idx]->is_reference = FALSE;
if (!frames[mark_idx]->output_needed)
gst_h264_dpb_remove (dpb, mark_idx);
}
}
void
gst_h264_dpb_mark_all_unused (GstH264DPB * dpb)
{
GstVdpH264Frame **frames;
guint i;
frames = dpb->frames;
for (i = 0; i < dpb->n_frames; i++) {
frames[i]->is_reference = FALSE;
if (!frames[i]->output_needed) {
gst_h264_dpb_remove (dpb, i);
i--;
}
}
}
/* GObject vmethod implementations */
static void
gst_h264_dpb_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec)
{
GstH264DPB *dpb = GST_H264_DPB (object);
switch (property_id) {
case PROP_NUM_REF_FRAMES:
g_value_set_uint (value, dpb->max_frames);
break;
case PROP_MAX_LONGTERM_IDX:
g_value_set_int (value, dpb->max_longterm_frame_idx);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gst_h264_dpb_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
{
GstH264DPB *dpb = GST_H264_DPB (object);
switch (property_id) {
case PROP_NUM_REF_FRAMES:
{
guint i;
dpb->max_frames = g_value_get_uint (value);
for (i = dpb->n_frames; i > dpb->max_frames; i--)
gst_h264_dpb_bump (dpb, G_MAXUINT);
break;
}
case PROP_MAX_LONGTERM_IDX:
{
GstVdpH264Frame **frames;
guint i;
dpb->max_longterm_frame_idx = g_value_get_int (value);
frames = dpb->frames;
for (i = dpb->n_frames; i < dpb->n_frames; i++) {
if (frames[i]->is_reference && frames[i]->is_long_term &&
frames[i]->frame_idx > dpb->max_longterm_frame_idx) {
frames[i]->is_reference = FALSE;
if (!frames[i]->output_needed) {
gst_h264_dpb_remove (dpb, i);
i--;
}
}
}
break;
}
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gst_h264_dpb_finalize (GObject * object)
{
/* TODO: Add deinitalization code here */
G_OBJECT_CLASS (gst_h264_dpb_parent_class)->finalize (object);
}
static void
gst_h264_dpb_init (GstH264DPB * dpb)
{
dpb->n_frames = 0;
dpb->max_longterm_frame_idx = -1;
dpb->max_frames = MAX_DPB_SIZE;
}
static void
gst_h264_dpb_class_init (GstH264DPBClass * klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = gst_h264_dpb_finalize;
object_class->set_property = gst_h264_dpb_set_property;
object_class->get_property = gst_h264_dpb_get_property;
g_object_class_install_property (object_class, PROP_NUM_REF_FRAMES,
g_param_spec_uint ("num-ref-frames", "Num Ref Frames",
"How many reference frames the DPB should hold ",
0, 16, 16, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (object_class, PROP_MAX_LONGTERM_IDX,
g_param_spec_int ("max-longterm-frame-idx", "MaxLongTermFrameIDX",
"Maximum long-term frame index",
-1, G_MAXINT, -1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}