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gstreamer/gst-libs/gst/vaapi/gstvaapidecoder_h265.c
Sreerenj Balachandran 3bd6185f9f decoder: hevc: Don't flush dpb for EOS/EOB nal 
Explicit flushing of dpb for EOS and EOB nal decoding is wrong,
the dpb_add() itself will handle the flusing(if needed) of dpb
for end of sequence and end of bitstream.

https://bugzilla.gnome.org/show_bug.cgi?id=754010
2015-09-04 22:19:55 +03:00

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/*
* gstvaapidecoder_h265.c - H.265 decoder
*
* Copyright (C) 2015 Intel Corporation
* Author: Sreerenj Balachandran <sreerenj.balachandran@intel.com>
*
* 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
*/
/**
* SECTION:gstvaapidecoder_h265
* @short_description: H.265 decoder
*/
#include "sysdeps.h"
#include <string.h>
#include <math.h>
#include <gst/base/gstadapter.h>
#include <gst/codecparsers/gsth265parser.h>
#include "gstvaapicompat.h"
#include "gstvaapidecoder_h265.h"
#include "gstvaapidecoder_objects.h"
#include "gstvaapidecoder_priv.h"
#include "gstvaapidisplay_priv.h"
#include "gstvaapiobject_priv.h"
#include "gstvaapiutils_h265_priv.h"
#define DEBUG 1
#include "gstvaapidebug.h"
/* Defined to 1 if strict ordering of DPB is needed. Only useful for debug */
#define USE_STRICT_DPB_ORDERING 0
typedef struct _GstVaapiDecoderH265Private GstVaapiDecoderH265Private;
typedef struct _GstVaapiDecoderH265Class GstVaapiDecoderH265Class;
typedef struct _GstVaapiFrameStore GstVaapiFrameStore;
typedef struct _GstVaapiFrameStoreClass GstVaapiFrameStoreClass;
typedef struct _GstVaapiParserInfoH265 GstVaapiParserInfoH265;
typedef struct _GstVaapiPictureH265 GstVaapiPictureH265;
static gboolean nal_is_slice (guint8 nal_type);
/* ------------------------------------------------------------------------- */
/* --- H.265 Parser Info --- */
/* ------------------------------------------------------------------------- */
/*
* Extended decoder unit flags:
*
* @GST_VAAPI_DECODER_UNIT_AU_START: marks the start of an access unit.
* @GST_VAAPI_DECODER_UNIT_AU_END: marks the end of an access unit.
*/
enum
{
GST_VAAPI_DECODER_UNIT_FLAG_AU_START =
(GST_VAAPI_DECODER_UNIT_FLAG_LAST << 0),
GST_VAAPI_DECODER_UNIT_FLAG_AU_END = (GST_VAAPI_DECODER_UNIT_FLAG_LAST << 1),
GST_VAAPI_DECODER_UNIT_FLAGS_AU = (GST_VAAPI_DECODER_UNIT_FLAG_AU_START |
GST_VAAPI_DECODER_UNIT_FLAG_AU_END),
};
#define GST_VAAPI_PARSER_INFO_H265(obj) \
((GstVaapiParserInfoH265 *)(obj))
struct _GstVaapiParserInfoH265
{
GstVaapiMiniObject parent_instance;
GstH265NalUnit nalu;
union
{
GstH265VPS vps;
GstH265SPS sps;
GstH265PPS pps;
GArray *sei;
GstH265SliceHdr slice_hdr;
} data;
guint state;
guint flags; // Same as decoder unit flags (persistent)
};
static void
gst_vaapi_parser_info_h265_finalize (GstVaapiParserInfoH265 * pi)
{
if (nal_is_slice (pi->nalu.type))
gst_h265_slice_hdr_free (&pi->data.slice_hdr);
else {
switch (pi->nalu.type) {
case GST_H265_NAL_VPS:
case GST_H265_NAL_SPS:
case GST_H265_NAL_PPS:
break;
case GST_H265_NAL_PREFIX_SEI:
case GST_H265_NAL_SUFFIX_SEI:
if (pi->data.sei) {
g_array_unref (pi->data.sei);
pi->data.sei = NULL;
}
break;
}
}
}
static inline const GstVaapiMiniObjectClass *
gst_vaapi_parser_info_h265_class (void)
{
static const GstVaapiMiniObjectClass GstVaapiParserInfoH265Class = {
.size = sizeof (GstVaapiParserInfoH265),
.finalize = (GDestroyNotify) gst_vaapi_parser_info_h265_finalize
};
return &GstVaapiParserInfoH265Class;
}
static inline GstVaapiParserInfoH265 *
gst_vaapi_parser_info_h265_new (void)
{
return (GstVaapiParserInfoH265 *)
gst_vaapi_mini_object_new (gst_vaapi_parser_info_h265_class ());
}
#define gst_vaapi_parser_info_h265_ref(pi) \
gst_vaapi_mini_object_ref(GST_VAAPI_MINI_OBJECT(pi))
#define gst_vaapi_parser_info_h265_unref(pi) \
gst_vaapi_mini_object_unref(GST_VAAPI_MINI_OBJECT(pi))
#define gst_vaapi_parser_info_h265_replace(old_pi_ptr, new_pi) \
gst_vaapi_mini_object_replace((GstVaapiMiniObject **)(old_pi_ptr), \
(GstVaapiMiniObject *)(new_pi))
/* ------------------------------------------------------------------------- */
/* --- H.265 Pictures --- */
/* ------------------------------------------------------------------------- */
/*
* Extended picture flags:
*
* @GST_VAAPI_PICTURE_FLAG_IDR: flag that specifies an IDR picture
* @GST_VAAPI_PICTURE_FLAG_AU_START: flag that marks the start of an
* access unit (AU)
* @GST_VAAPI_PICTURE_FLAG_AU_END: flag that marks the end of an
* access unit (AU)
* @GST_VAAPI_PICTURE_FLAG_RPS_ST_CURR_BEFORE: flag indicate the inclusion
* of picture in RefPicSetStCurrBefore reference list
* @GST_VAAPI_PICTURE_FLAG_RPS_ST_CURR_AFTER: flag indicate the inclusion
* of picture in RefPictSetStCurrAfter reference list
* @GST_VAAPI_PICTURE_FLAG_RPS_ST_FOLL: flag indicate the inclusion
* of picture in RefPicSetStFoll reference list
* @GST_VAAPI_PICTURE_FLAG_RPS_LT_CURR: flag indicate the inclusion
* of picture in RefPicSetLtCurr reference list
* @GST_VAAPI_PICTURE_FLAG_RPS_LT_FOLL: flag indicate the inclusion
* of picture in RefPicSetLtFoll reference list
* @GST_VAAPI_PICTURE_FLAG_SHORT_TERM_REFERENCE: flag that specifies
* "used for short-term reference"
* @GST_VAAPI_PICTURE_FLAG_LONG_TERM_REFERENCE: flag that specifies
* "used for long-term reference"
* @GST_VAAPI_PICTURE_FLAGS_REFERENCE: mask covering any kind of
* reference picture (short-term reference or long-term reference)
*/
enum
{
GST_VAAPI_PICTURE_FLAG_IDR = (GST_VAAPI_PICTURE_FLAG_LAST << 0),
GST_VAAPI_PICTURE_FLAG_REFERENCE2 = (GST_VAAPI_PICTURE_FLAG_LAST << 1),
GST_VAAPI_PICTURE_FLAG_AU_START = (GST_VAAPI_PICTURE_FLAG_LAST << 4),
GST_VAAPI_PICTURE_FLAG_AU_END = (GST_VAAPI_PICTURE_FLAG_LAST << 5),
GST_VAAPI_PICTURE_FLAG_RPS_ST_CURR_BEFORE =
(GST_VAAPI_PICTURE_FLAG_LAST << 6),
GST_VAAPI_PICTURE_FLAG_RPS_ST_CURR_AFTER = (GST_VAAPI_PICTURE_FLAG_LAST << 7),
GST_VAAPI_PICTURE_FLAG_RPS_ST_FOLL = (GST_VAAPI_PICTURE_FLAG_LAST << 8),
GST_VAAPI_PICTURE_FLAG_RPS_LT_CURR = (GST_VAAPI_PICTURE_FLAG_LAST << 9),
GST_VAAPI_PICTURE_FLAG_RPS_LT_FOLL = (GST_VAAPI_PICTURE_FLAG_LAST << 10),
GST_VAAPI_PICTURE_FLAG_SHORT_TERM_REFERENCE =
(GST_VAAPI_PICTURE_FLAG_REFERENCE),
GST_VAAPI_PICTURE_FLAG_LONG_TERM_REFERENCE =
(GST_VAAPI_PICTURE_FLAG_REFERENCE | GST_VAAPI_PICTURE_FLAG_REFERENCE2),
GST_VAAPI_PICTURE_FLAGS_REFERENCE =
(GST_VAAPI_PICTURE_FLAG_SHORT_TERM_REFERENCE |
GST_VAAPI_PICTURE_FLAG_LONG_TERM_REFERENCE),
GST_VAAPI_PICTURE_FLAGS_RPS_ST =
(GST_VAAPI_PICTURE_FLAG_RPS_ST_CURR_BEFORE |
GST_VAAPI_PICTURE_FLAG_RPS_ST_CURR_AFTER |
GST_VAAPI_PICTURE_FLAG_RPS_ST_FOLL),
GST_VAAPI_PICTURE_FLAGS_RPS_LT =
(GST_VAAPI_PICTURE_FLAG_RPS_LT_CURR | GST_VAAPI_PICTURE_FLAG_RPS_LT_FOLL),
};
#define GST_VAAPI_PICTURE_IS_IDR(picture) \
(GST_VAAPI_PICTURE_FLAG_IS_SET(picture, GST_VAAPI_PICTURE_FLAG_IDR))
#define GST_VAAPI_PICTURE_IS_SHORT_TERM_REFERENCE(picture) \
((GST_VAAPI_PICTURE_FLAGS(picture) & \
GST_VAAPI_PICTURE_FLAGS_REFERENCE) == \
GST_VAAPI_PICTURE_FLAG_SHORT_TERM_REFERENCE)
#define GST_VAAPI_PICTURE_IS_LONG_TERM_REFERENCE(picture) \
((GST_VAAPI_PICTURE_FLAGS(picture) & \
GST_VAAPI_PICTURE_FLAGS_REFERENCE) == \
GST_VAAPI_PICTURE_FLAG_LONG_TERM_REFERENCE)
#define GST_VAAPI_PICTURE_H265(picture) \
((GstVaapiPictureH265 *)(picture))
struct _GstVaapiPictureH265
{
GstVaapiPicture base;
GstH265SliceHdr *last_slice_hdr;
guint structure;
gint32 poc; // PicOrderCntVal (8.3.1)
gint32 poc_lsb; // slice_pic_order_cnt_lsb
guint32 pic_latency_cnt; // PicLatencyCount
guint output_flag:1;
guint output_needed:1;
guint NoRaslOutputFlag:1;
guint NoOutputOfPriorPicsFlag:1;
guint RapPicFlag:1; // nalu type between 16 and 21
guint IntraPicFlag:1; // Intra pic (only Intra slices)
};
GST_VAAPI_CODEC_DEFINE_TYPE (GstVaapiPictureH265, gst_vaapi_picture_h265);
void
gst_vaapi_picture_h265_destroy (GstVaapiPictureH265 * picture)
{
gst_vaapi_picture_destroy (GST_VAAPI_PICTURE (picture));
}
gboolean
gst_vaapi_picture_h265_create (GstVaapiPictureH265 * picture,
const GstVaapiCodecObjectConstructorArgs * args)
{
if (!gst_vaapi_picture_create (GST_VAAPI_PICTURE (picture), args))
return FALSE;
picture->structure = picture->base.structure;
picture->poc = G_MAXINT32;
picture->output_needed = FALSE;
return TRUE;
}
static inline GstVaapiPictureH265 *
gst_vaapi_picture_h265_new (GstVaapiDecoderH265 * decoder)
{
return (GstVaapiPictureH265 *)
gst_vaapi_codec_object_new (&GstVaapiPictureH265Class,
GST_VAAPI_CODEC_BASE (decoder), NULL,
sizeof (VAPictureParameterBufferHEVC), NULL, 0, 0);
}
static inline void
gst_vaapi_picture_h265_set_reference (GstVaapiPictureH265 * picture,
guint reference_flags)
{
if (!picture)
return;
GST_VAAPI_PICTURE_FLAG_UNSET (picture,
GST_VAAPI_PICTURE_FLAGS_RPS_ST | GST_VAAPI_PICTURE_FLAGS_RPS_LT);
GST_VAAPI_PICTURE_FLAG_UNSET (picture, GST_VAAPI_PICTURE_FLAGS_REFERENCE);
GST_VAAPI_PICTURE_FLAG_SET (picture, reference_flags);
}
/* ------------------------------------------------------------------------- */
/* --- Frame Buffers (DPB) --- */
/* ------------------------------------------------------------------------- */
struct _GstVaapiFrameStore
{
/*< private > */
GstVaapiMiniObject parent_instance;
GstVaapiPictureH265 *buffer;
};
static void
gst_vaapi_frame_store_finalize (gpointer object)
{
GstVaapiFrameStore *const fs = object;
gst_vaapi_picture_replace (&fs->buffer, NULL);
}
static GstVaapiFrameStore *
gst_vaapi_frame_store_new (GstVaapiPictureH265 * picture)
{
GstVaapiFrameStore *fs;
static const GstVaapiMiniObjectClass GstVaapiFrameStoreClass = {
sizeof (GstVaapiFrameStore),
gst_vaapi_frame_store_finalize
};
fs = (GstVaapiFrameStore *)
gst_vaapi_mini_object_new (&GstVaapiFrameStoreClass);
if (!fs)
return NULL;
fs->buffer = gst_vaapi_picture_ref (picture);
return fs;
}
static inline gboolean
gst_vaapi_frame_store_has_reference (GstVaapiFrameStore * fs)
{
if (GST_VAAPI_PICTURE_IS_REFERENCE (fs->buffer))
return TRUE;
return FALSE;
}
#define gst_vaapi_frame_store_ref(fs) \
gst_vaapi_mini_object_ref(GST_VAAPI_MINI_OBJECT(fs))
#define gst_vaapi_frame_store_unref(fs) \
gst_vaapi_mini_object_unref(GST_VAAPI_MINI_OBJECT(fs))
#define gst_vaapi_frame_store_replace(old_fs_p, new_fs) \
gst_vaapi_mini_object_replace((GstVaapiMiniObject **)(old_fs_p), \
(GstVaapiMiniObject *)(new_fs))
/* ------------------------------------------------------------------------- */
/* --- H.265 Decoder --- */
/* ------------------------------------------------------------------------- */
#define GST_VAAPI_DECODER_H265_CAST(decoder) \
((GstVaapiDecoderH265 *)(decoder))
typedef enum
{
GST_H265_VIDEO_STATE_GOT_VPS = 1 << 0,
GST_H265_VIDEO_STATE_GOT_SPS = 1 << 1,
GST_H265_VIDEO_STATE_GOT_PPS = 1 << 2,
GST_H265_VIDEO_STATE_GOT_SLICE = 1 << 3,
GST_H265_VIDEO_STATE_VALID_PICTURE_HEADERS =
(GST_H265_VIDEO_STATE_GOT_SPS | GST_H265_VIDEO_STATE_GOT_PPS),
GST_H265_VIDEO_STATE_VALID_PICTURE =
(GST_H265_VIDEO_STATE_VALID_PICTURE_HEADERS |
GST_H265_VIDEO_STATE_GOT_SLICE)
} GstH265VideoState;
struct _GstVaapiDecoderH265Private
{
GstH265Parser *parser;
guint parser_state;
guint decoder_state;
GstVaapiStreamAlignH265 stream_alignment;
GstVaapiPictureH265 *current_picture;
GstVaapiParserInfoH265 *vps[GST_H265_MAX_VPS_COUNT];
GstVaapiParserInfoH265 *active_vps;
GstVaapiParserInfoH265 *sps[GST_H265_MAX_SPS_COUNT];
GstVaapiParserInfoH265 *active_sps;
GstVaapiParserInfoH265 *pps[GST_H265_MAX_PPS_COUNT];
GstVaapiParserInfoH265 *active_pps;
GstVaapiParserInfoH265 *prev_pi;
GstVaapiParserInfoH265 *prev_slice_pi;
GstVaapiParserInfoH265 *prev_independent_slice_pi;
GstVaapiFrameStore **dpb;
guint dpb_count;
guint dpb_size;
guint dpb_size_max;
GstVaapiProfile profile;
GstVaapiEntrypoint entrypoint;
GstVaapiChromaType chroma_type;
GstVaapiPictureH265 *RefPicSetStCurrBefore[16];
GstVaapiPictureH265 *RefPicSetStCurrAfter[16];
GstVaapiPictureH265 *RefPicSetStFoll[16];
GstVaapiPictureH265 *RefPicSetLtCurr[16];
GstVaapiPictureH265 *RefPicSetLtFoll[16];
GstVaapiPictureH265 *RefPicList0[16];
guint RefPicList0_count;
GstVaapiPictureH265 *RefPicList1[16];
guint RefPicList1_count;
guint32 SpsMaxLatencyPictures;
gint32 WpOffsetHalfRangeC;
guint nal_length_size;
guint pic_width_in_luma_samples; //sps->pic_width_in_luma_samples
guint pic_height_in_luma_samples; //sps->pic_height_in_luma_samples
guint pic_structure; // pic_struct (from SEI pic_timing() or inferred)
gint32 poc; // PicOrderCntVal
gint32 poc_msb; // PicOrderCntMsb
gint32 poc_lsb; // pic_order_cnt_lsb (from slice_header())
gint32 prev_poc_msb; // prevPicOrderCntMsb
gint32 prev_poc_lsb; // prevPicOrderCntLsb
gint32 prev_tid0pic_poc_lsb;
gint32 prev_tid0pic_poc_msb;
gint32 PocStCurrBefore[16];
gint32 PocStCurrAfter[16];
gint32 PocStFoll[16];
gint32 PocLtCurr[16];
gint32 PocLtFoll[16];
guint NumPocStCurrBefore;
guint NumPocStCurrAfter;
guint NumPocStFoll;
guint NumPocLtCurr;
guint NumPocLtFoll;
guint NumPocTotalCurr;
guint is_opened:1;
guint is_hvcC:1;
guint has_context:1;
guint progressive_sequence:1;
guint new_bitstream:1;
guint prev_nal_is_eos:1; /*previous nal type is EOS */
guint associated_irap_NoRaslOutputFlag:1;
};
/**
* GstVaapiDecoderH265:
*
* A decoder based on H265.
*/
struct _GstVaapiDecoderH265
{
/*< private > */
GstVaapiDecoder parent_instance;
GstVaapiDecoderH265Private priv;
};
/**
* GstVaapiDecoderH265Class:
*
* A decoder class based on H265.
*/
struct _GstVaapiDecoderH265Class
{
/*< private > */
GstVaapiDecoderClass parent_class;
};
#define RSV_VCL_N10 10
#define RSV_VCL_N12 12
#define RSV_VCL_N14 14
static gboolean
nal_is_idr (guint8 nal_type)
{
if ((nal_type == GST_H265_NAL_SLICE_IDR_W_RADL) ||
(nal_type == GST_H265_NAL_SLICE_IDR_N_LP))
return TRUE;
return FALSE;
}
static gboolean
nal_is_irap (guint8 nal_type)
{
if ((nal_type >= GST_H265_NAL_SLICE_BLA_W_LP) &&
(nal_type <= RESERVED_IRAP_NAL_TYPE_MAX))
return TRUE;
return FALSE;
}
static gboolean
nal_is_bla (guint8 nal_type)
{
if ((nal_type >= GST_H265_NAL_SLICE_BLA_W_LP) &&
(nal_type <= GST_H265_NAL_SLICE_BLA_N_LP))
return TRUE;
return FALSE;
}
static gboolean
nal_is_cra (guint8 nal_type)
{
if (nal_type == GST_H265_NAL_SLICE_CRA_NUT)
return TRUE;
return FALSE;
}
static gboolean
nal_is_radl (guint8 nal_type)
{
if ((nal_type >= GST_H265_NAL_SLICE_RADL_N) &&
(nal_type <= GST_H265_NAL_SLICE_RADL_R))
return TRUE;
return FALSE;
}
static gboolean
nal_is_rasl (guint8 nal_type)
{
if ((nal_type >= GST_H265_NAL_SLICE_RASL_N) &&
(nal_type <= GST_H265_NAL_SLICE_RASL_R))
return TRUE;
return FALSE;
}
static gboolean
nal_is_slice (guint8 nal_type)
{
if ((nal_type >= GST_H265_NAL_SLICE_TRAIL_N) &&
(nal_type <= GST_H265_NAL_SLICE_CRA_NUT))
return TRUE;
return FALSE;
}
static gboolean
nal_is_ref (guint8 nal_type)
{
gboolean ret = FALSE;
switch (nal_type) {
case GST_H265_NAL_SLICE_TRAIL_N:
case GST_H265_NAL_SLICE_TSA_N:
case GST_H265_NAL_SLICE_STSA_N:
case GST_H265_NAL_SLICE_RADL_N:
case GST_H265_NAL_SLICE_RASL_N:
case RSV_VCL_N10:
case RSV_VCL_N12:
case RSV_VCL_N14:
ret = FALSE;
break;
default:
ret = TRUE;
break;
}
return ret;
}
/* Activates the supplied PPS */
static GstH265PPS *
ensure_pps (GstVaapiDecoderH265 * decoder, GstH265PPS * pps)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiParserInfoH265 *const pi = priv->pps[pps->id];
gst_vaapi_parser_info_h265_replace (&priv->active_pps, pi);
return pi ? &pi->data.pps : NULL;
}
/* Returns the active PPS */
static inline GstH265PPS *
get_pps (GstVaapiDecoderH265 * decoder)
{
GstVaapiParserInfoH265 *const pi = decoder->priv.active_pps;
return pi ? &pi->data.pps : NULL;
}
/* Activate the supplied SPS */
static GstH265SPS *
ensure_sps (GstVaapiDecoderH265 * decoder, GstH265SPS * sps)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiParserInfoH265 *const pi = priv->sps[sps->id];
gst_vaapi_parser_info_h265_replace (&priv->active_sps, pi);
return pi ? &pi->data.sps : NULL;
}
/* Returns the active SPS */
static inline GstH265SPS *
get_sps (GstVaapiDecoderH265 * decoder)
{
GstVaapiParserInfoH265 *const pi = decoder->priv.active_sps;
return pi ? &pi->data.sps : NULL;
}
/* VPS nal is not necessary to decode the base layers, so this is not
* needed at the moment. But in future we need this, especially when
* dealing with MVC and scalable layer decoding.
* See https://bugzilla.gnome.org/show_bug.cgi?id=754250
*/
#if 0
/* Activate the supplied VPS */
static GstH265VPS *
ensure_vps (GstVaapiDecoderH265 * decoder, GstH265VPS * vps)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiParserInfoH265 *const pi = priv->vps[vps->id];
gst_vaapi_parser_info_h265_replace (&priv->active_vps, pi);
return pi ? &pi->data.vps : NULL;
}
/* Returns the active VPS */
static inline GstH265VPS *
get_vps (GstVaapiDecoderH265 * decoder)
{
GstVaapiParserInfoH265 *const pi = decoder->priv.active_vps;
return pi ? &pi->data.vps : NULL;
}
#endif
/* Get number of reference frames to use */
static guint
get_max_dec_frame_buffering (GstH265SPS * sps)
{
guint max_dec_frame_buffering;
GstVaapiLevelH265 level;
const GstVaapiH265LevelLimits *level_limits;
level = gst_vaapi_utils_h265_get_level (sps->profile_tier_level.level_idc);
level_limits = gst_vaapi_utils_h265_get_level_limits (level);
if (G_UNLIKELY (!level_limits)) {
GST_FIXME ("unsupported level_idc value (%d)",
sps->profile_tier_level.level_idc);
max_dec_frame_buffering = 16;
}
/* Fixme: Add limit check based on Annex A */
/* Assuming HighestTid as sps_max_sub_layers_minus1 */
return MAX (1,
(sps->max_dec_pic_buffering_minus1[sps->max_sub_layers_minus1] + 1));
}
static void
dpb_remove_index (GstVaapiDecoderH265 * decoder, gint index)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
guint i, num_frames = --priv->dpb_count;
if (USE_STRICT_DPB_ORDERING) {
for (i = index; i < num_frames; i++)
gst_vaapi_frame_store_replace (&priv->dpb[i], priv->dpb[i + 1]);
} else if (index != num_frames)
gst_vaapi_frame_store_replace (&priv->dpb[index], priv->dpb[num_frames]);
gst_vaapi_frame_store_replace (&priv->dpb[num_frames], NULL);
}
static gboolean
dpb_output (GstVaapiDecoderH265 * decoder, GstVaapiFrameStore * fs)
{
GstVaapiPictureH265 *picture;
g_return_val_if_fail (fs != NULL, FALSE);
picture = fs->buffer;
g_return_val_if_fail (picture != NULL, FALSE);
picture->output_needed = FALSE;
return gst_vaapi_picture_output (GST_VAAPI_PICTURE_CAST (picture));
}
/* Get the dpb picture having the specifed poc or poc_lsb */
static GstVaapiPictureH265 *
dpb_get_picture (GstVaapiDecoderH265 * decoder, gint poc, gboolean match_lsb)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
guint i;
for (i = 0; i < priv->dpb_count; i++) {
GstVaapiPictureH265 *const picture = priv->dpb[i]->buffer;
if (picture && GST_VAAPI_PICTURE_FLAG_IS_SET (picture,
GST_VAAPI_PICTURE_FLAGS_REFERENCE)) {
if (match_lsb) {
if (picture->poc_lsb == poc)
return picture;
} else {
if (picture->poc == poc)
return picture;
}
}
}
return NULL;
}
/* Get the dpb picture having the specifed poc and shor/long ref flags */
static GstVaapiPictureH265 *
dpb_get_ref_picture (GstVaapiDecoderH265 * decoder, gint poc, gboolean is_short)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
guint i;
for (i = 0; i < priv->dpb_count; i++) {
GstVaapiPictureH265 *const picture = priv->dpb[i]->buffer;
if (picture && picture->poc == poc) {
if (is_short && GST_VAAPI_PICTURE_IS_SHORT_TERM_REFERENCE (picture))
return picture;
else if (GST_VAAPI_PICTURE_IS_LONG_TERM_REFERENCE (picture))
return picture;
}
}
return NULL;
}
/* Finds the picture with the lowest POC that needs to be output */
static gint
dpb_find_lowest_poc (GstVaapiDecoderH265 * decoder,
GstVaapiPictureH265 ** found_picture_ptr)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiPictureH265 *found_picture = NULL;
guint i, found_index;
for (i = 0; i < priv->dpb_count; i++) {
GstVaapiPictureH265 *const picture = priv->dpb[i]->buffer;
if (picture && !picture->output_needed)
continue;
if (!found_picture || found_picture->poc > picture->poc)
found_picture = picture, found_index = i;
}
if (found_picture_ptr)
*found_picture_ptr = found_picture;
return found_picture ? found_index : -1;
}
static gboolean
dpb_bump (GstVaapiDecoderH265 * decoder, GstVaapiPictureH265 * picture)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiPictureH265 *found_picture;
gint found_index;
gboolean success;
found_index = dpb_find_lowest_poc (decoder, &found_picture);
if (found_index < 0)
return FALSE;
success = dpb_output (decoder, priv->dpb[found_index]);
if (!gst_vaapi_frame_store_has_reference (priv->dpb[found_index]))
dpb_remove_index (decoder, found_index);
return success;
}
static void
dpb_clear (GstVaapiDecoderH265 * decoder, gboolean hard_flush)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiPictureH265 *pic;
guint i;
if (hard_flush) {
for (i = 0; i < priv->dpb_count; i++)
dpb_remove_index (decoder, i);
priv->dpb_count = 0;
} else {
/* Remove unused pictures from DPB */
i = 0;
while (i < priv->dpb_count) {
GstVaapiFrameStore *const fs = priv->dpb[i];
pic = fs->buffer;
if (!pic->output_needed && !gst_vaapi_frame_store_has_reference (fs))
dpb_remove_index (decoder, i);
else
i++;
}
}
}
static void
dpb_flush (GstVaapiDecoderH265 * decoder)
{
/* Output any frame remaining in DPB */
while (dpb_bump (decoder, NULL));
dpb_clear (decoder, TRUE);
}
static gint
dpb_get_num_need_output (GstVaapiDecoderH265 * decoder)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
guint i = 0, n_output_needed = 0;
while (i < priv->dpb_count) {
GstVaapiFrameStore *const fs = priv->dpb[i];
if (fs->buffer->output_needed)
n_output_needed++;
i++;
}
return n_output_needed;
}
static gboolean
check_latency_cnt (GstVaapiDecoderH265 * decoder)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiPictureH265 *tmp_pic;
guint i = 0;
while (i < priv->dpb_count) {
GstVaapiFrameStore *const fs = priv->dpb[i];
tmp_pic = fs->buffer;
if (tmp_pic->output_needed) {
if (tmp_pic->pic_latency_cnt >= priv->SpsMaxLatencyPictures)
return TRUE;
}
i++;
}
return FALSE;
}
static gboolean
dpb_add (GstVaapiDecoderH265 * decoder, GstVaapiPictureH265 * picture)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstH265SPS *const sps = get_sps (decoder);
GstVaapiFrameStore *fs;
GstVaapiPictureH265 *tmp_pic;
guint i = 0;
/* C.5.2.3 */
if (picture->output_flag) {
while (i < priv->dpb_count) {
GstVaapiFrameStore *const fs = priv->dpb[i];
tmp_pic = fs->buffer;
if (tmp_pic->output_needed)
tmp_pic->pic_latency_cnt += 1;
i++;
}
}
/* Create new frame store */
fs = gst_vaapi_frame_store_new (picture);
if (!fs)
return FALSE;
gst_vaapi_frame_store_replace (&priv->dpb[priv->dpb_count++], fs);
gst_vaapi_frame_store_unref (fs);
if (picture->output_flag) {
picture->output_needed = 1;
picture->pic_latency_cnt = 0;
} else
picture->output_needed = 0;
/* set pic as short_term_ref */
gst_vaapi_picture_h265_set_reference (picture,
GST_VAAPI_PICTURE_FLAG_SHORT_TERM_REFERENCE);
/* C.5.2.4 "Bumping" process */
while ((dpb_get_num_need_output (decoder) >
sps->max_num_reorder_pics[sps->max_sub_layers_minus1])
|| (sps->max_latency_increase_plus1[sps->max_sub_layers_minus1]
&& check_latency_cnt (decoder)))
dpb_bump (decoder, picture);
return TRUE;
}
/* C.5.2.2 */
static gboolean
dpb_init (GstVaapiDecoderH265 * decoder, GstVaapiPictureH265 * picture,
GstVaapiParserInfoH265 * pi)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstH265SliceHdr *const slice_hdr = &pi->data.slice_hdr;
GstH265SPS *const sps = get_sps (decoder);
if (nal_is_irap (pi->nalu.type)
&& picture->NoRaslOutputFlag && !priv->new_bitstream) {
if (pi->nalu.type == GST_H265_NAL_SLICE_CRA_NUT)
picture->NoOutputOfPriorPicsFlag = 1;
else
picture->NoOutputOfPriorPicsFlag =
slice_hdr->no_output_of_prior_pics_flag;
if (picture->NoOutputOfPriorPicsFlag)
dpb_clear (decoder, TRUE);
else {
dpb_clear (decoder, FALSE);
while (dpb_bump (decoder, NULL));
}
} else {
dpb_clear (decoder, FALSE);
while ((dpb_get_num_need_output (decoder) >
sps->max_num_reorder_pics[sps->max_sub_layers_minus1])
|| (sps->max_latency_increase_plus1[sps->max_sub_layers_minus1]
&& check_latency_cnt (decoder))
|| (priv->dpb_count >=
(sps->max_dec_pic_buffering_minus1[sps->max_sub_layers_minus1] +
1))) {
dpb_bump (decoder, picture);
}
}
return TRUE;
}
static gboolean
dpb_reset (GstVaapiDecoderH265 * decoder, guint dpb_size)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
if (dpb_size > priv->dpb_size_max) {
priv->dpb = g_try_realloc_n (priv->dpb, dpb_size, sizeof (*priv->dpb));
if (!priv->dpb)
return FALSE;
memset (&priv->dpb[priv->dpb_size_max], 0,
(dpb_size - priv->dpb_size_max) * sizeof (*priv->dpb));
priv->dpb_size_max = dpb_size;
}
priv->dpb_size = dpb_size;
GST_DEBUG ("DPB size %u", priv->dpb_size);
return TRUE;
}
static GstVaapiDecoderStatus
get_status (GstH265ParserResult result)
{
GstVaapiDecoderStatus status;
switch (result) {
case GST_H265_PARSER_OK:
status = GST_VAAPI_DECODER_STATUS_SUCCESS;
break;
case GST_H265_PARSER_NO_NAL_END:
status = GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA;
break;
case GST_H265_PARSER_ERROR:
status = GST_VAAPI_DECODER_STATUS_ERROR_BITSTREAM_PARSER;
break;
default:
status = GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
break;
}
return status;
}
static void
gst_vaapi_decoder_h265_close (GstVaapiDecoderH265 * decoder)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
gst_vaapi_picture_replace (&priv->current_picture, NULL);
gst_vaapi_parser_info_h265_replace (&priv->prev_slice_pi, NULL);
gst_vaapi_parser_info_h265_replace (&priv->prev_independent_slice_pi, NULL);
gst_vaapi_parser_info_h265_replace (&priv->prev_pi, NULL);
dpb_clear (decoder, TRUE);
if (priv->parser) {
gst_h265_parser_free (priv->parser);
priv->parser = NULL;
}
}
static gboolean
gst_vaapi_decoder_h265_open (GstVaapiDecoderH265 * decoder)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
gst_vaapi_decoder_h265_close (decoder);
priv->parser = gst_h265_parser_new ();
if (!priv->parser)
return FALSE;
return TRUE;
}
static void
gst_vaapi_decoder_h265_destroy (GstVaapiDecoder * base_decoder)
{
GstVaapiDecoderH265 *const decoder =
GST_VAAPI_DECODER_H265_CAST (base_decoder);
GstVaapiDecoderH265Private *const priv = &decoder->priv;
guint i;
gst_vaapi_decoder_h265_close (decoder);
g_free (priv->dpb);
priv->dpb = NULL;
priv->dpb_size = 0;
for (i = 0; i < G_N_ELEMENTS (priv->pps); i++)
gst_vaapi_parser_info_h265_replace (&priv->pps[i], NULL);
gst_vaapi_parser_info_h265_replace (&priv->active_pps, NULL);
for (i = 0; i < G_N_ELEMENTS (priv->sps); i++)
gst_vaapi_parser_info_h265_replace (&priv->sps[i], NULL);
gst_vaapi_parser_info_h265_replace (&priv->active_sps, NULL);
for (i = 0; i < G_N_ELEMENTS (priv->vps); i++)
gst_vaapi_parser_info_h265_replace (&priv->vps[i], NULL);
gst_vaapi_parser_info_h265_replace (&priv->active_vps, NULL);
}
static gboolean
gst_vaapi_decoder_h265_create (GstVaapiDecoder * base_decoder)
{
GstVaapiDecoderH265 *const decoder =
GST_VAAPI_DECODER_H265_CAST (base_decoder);
GstVaapiDecoderH265Private *const priv = &decoder->priv;
priv->profile = GST_VAAPI_PROFILE_UNKNOWN;
priv->entrypoint = GST_VAAPI_ENTRYPOINT_VLD;
priv->chroma_type = GST_VAAPI_CHROMA_TYPE_YUV420;
priv->progressive_sequence = TRUE;
priv->new_bitstream = TRUE;
priv->prev_nal_is_eos = FALSE;
return TRUE;
}
static void
fill_profiles (GstVaapiProfile profiles[16], guint * n_profiles_ptr,
GstVaapiProfile profile)
{
guint n_profiles = *n_profiles_ptr;
profiles[n_profiles++] = profile;
switch (profile) {
case GST_VAAPI_PROFILE_H265_MAIN:
profiles[n_profiles++] = GST_VAAPI_PROFILE_H265_MAIN10;
break;
case GST_VAAPI_PROFILE_H265_MAIN_STILL_PICTURE:
profiles[n_profiles++] = GST_VAAPI_PROFILE_H265_MAIN;
profiles[n_profiles++] = GST_VAAPI_PROFILE_H265_MAIN10;
break;
default:
break;
}
*n_profiles_ptr = n_profiles;
}
static GstVaapiProfile
get_profile (GstVaapiDecoderH265 * decoder, GstH265SPS * sps, guint dpb_size)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiDisplay *const display = GST_VAAPI_DECODER_DISPLAY (decoder);
GstVaapiProfile profile, profiles[3];
guint i, n_profiles = 0;
profile =
gst_vaapi_utils_h265_get_profile (sps->profile_tier_level.profile_idc);
if (!profile) {
/* HACK: This is a work-around to identify some main profile streams having wrong profile_idc.
* There are some wrongly encoded main profile streams(eg: ENTP_C_LG_3.bin) which doesn't
* have any of the profile_idc values mentioned in Annex-A, instead general_profile_idc
* has been set as zero and having general_profile_compatibility_flag[general_profile_idc]
* is TRUE. Assuming them as MAIN profile for now */
if (sps->profile_tier_level.profile_space == 0 &&
sps->profile_tier_level.profile_idc == 0 &&
sps->profile_tier_level.profile_compatibility_flag[0] == 1) {
GST_WARNING ("Wrong profile_idc, blindly setting it as main profile !!");
profile = GST_VAAPI_PROFILE_H265_MAIN;
} else
return GST_VAAPI_PROFILE_UNKNOWN;
}
fill_profiles (profiles, &n_profiles, profile);
switch (profile) {
case GST_VAAPI_PROFILE_H265_MAIN10:
if (sps->profile_tier_level.profile_compatibility_flag[1]) { // A.2.3.2 (main profile)
fill_profiles (profiles, &n_profiles, GST_VAAPI_PROFILE_H265_MAIN);
}
break;
default:
break;
}
/* If the preferred profile (profiles[0]) matches one that we already
found, then just return it now instead of searching for it again */
if (profiles[0] == priv->profile)
return priv->profile;
for (i = 0; i < n_profiles; i++) {
if (gst_vaapi_display_has_decoder (display, profiles[i], priv->entrypoint))
return profiles[i];
}
return GST_VAAPI_PROFILE_UNKNOWN;
}
static GstVaapiDecoderStatus
ensure_context (GstVaapiDecoderH265 * decoder, GstH265SPS * sps)
{
GstVaapiDecoder *const base_decoder = GST_VAAPI_DECODER_CAST (decoder);
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiContextInfo info;
GstVaapiProfile profile;
GstVaapiChromaType chroma_type;
gboolean reset_context = FALSE;
guint dpb_size;
dpb_size = get_max_dec_frame_buffering (sps);
if (priv->dpb_size < dpb_size) {
GST_DEBUG ("DPB size increased");
reset_context = TRUE;
}
profile = get_profile (decoder, sps, dpb_size);
if (!profile) {
GST_ERROR ("unsupported profile_idc %u",
sps->profile_tier_level.profile_idc);
return GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_PROFILE;
}
if (!priv->profile || (priv->profile != profile)) {
GST_DEBUG ("profile changed");
reset_context = TRUE;
priv->profile = profile;
}
chroma_type = gst_vaapi_utils_h265_get_chroma_type (sps->chroma_format_idc);
if (!chroma_type) {
GST_ERROR ("unsupported chroma_format_idc %u", sps->chroma_format_idc);
return GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_CHROMA_FORMAT;
}
if (priv->chroma_type != chroma_type) {
GST_DEBUG ("chroma format changed");
reset_context = TRUE;
priv->chroma_type = chroma_type;
}
if (priv->pic_width_in_luma_samples != sps->pic_width_in_luma_samples ||
priv->pic_height_in_luma_samples != sps->pic_height_in_luma_samples) {
GST_DEBUG ("size changed");
reset_context = TRUE;
priv->pic_width_in_luma_samples = sps->pic_width_in_luma_samples;
priv->pic_height_in_luma_samples = sps->pic_height_in_luma_samples;
}
priv->progressive_sequence = 1; /*Fixme */
gst_vaapi_decoder_set_interlaced (base_decoder, !priv->progressive_sequence);
gst_vaapi_decoder_set_pixel_aspect_ratio (base_decoder,
sps->vui_params.par_n, sps->vui_params.par_d);
if (!reset_context && priv->has_context)
return GST_VAAPI_DECODER_STATUS_SUCCESS;
/* XXX: fix surface size when cropping is implemented */
info.profile = priv->profile;
info.entrypoint = priv->entrypoint;
info.chroma_type = priv->chroma_type;
info.width = sps->width;
info.height = sps->height;
info.ref_frames = dpb_size;
if (!gst_vaapi_decoder_ensure_context (GST_VAAPI_DECODER (decoder), &info))
return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
priv->has_context = TRUE;
/* Reset DPB */
if (!dpb_reset (decoder, dpb_size))
return GST_VAAPI_DECODER_STATUS_ERROR_ALLOCATION_FAILED;
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
static void
fill_iq_matrix_4x4 (VAIQMatrixBufferHEVC * iq_matrix,
GstH265ScalingList * scaling_list)
{
guint i;
g_assert (G_N_ELEMENTS (iq_matrix->ScalingList4x4) == 6);
g_assert (G_N_ELEMENTS (iq_matrix->ScalingList4x4[0]) == 16);
for (i = 0; i < G_N_ELEMENTS (iq_matrix->ScalingList4x4); i++) {
gst_h265_quant_matrix_4x4_get_raster_from_uprightdiagonal
(iq_matrix->ScalingList4x4[i], scaling_list->scaling_lists_4x4[i]);
}
}
static void
fill_iq_matrix_8x8 (VAIQMatrixBufferHEVC * iq_matrix,
GstH265ScalingList * scaling_list)
{
guint i;
g_assert (G_N_ELEMENTS (iq_matrix->ScalingList8x8) == 6);
g_assert (G_N_ELEMENTS (iq_matrix->ScalingList8x8[0]) == 64);
for (i = 0; i < G_N_ELEMENTS (iq_matrix->ScalingList8x8); i++) {
gst_h265_quant_matrix_8x8_get_raster_from_uprightdiagonal
(iq_matrix->ScalingList8x8[i], scaling_list->scaling_lists_8x8[i]);
}
}
static void
fill_iq_matrix_16x16 (VAIQMatrixBufferHEVC * iq_matrix,
GstH265ScalingList * scaling_list)
{
guint i;
g_assert (G_N_ELEMENTS (iq_matrix->ScalingList16x16) == 6);
g_assert (G_N_ELEMENTS (iq_matrix->ScalingList16x16[0]) == 64);
for (i = 0; i < G_N_ELEMENTS (iq_matrix->ScalingList16x16); i++) {
gst_h265_quant_matrix_16x16_get_raster_from_uprightdiagonal
(iq_matrix->ScalingList16x16[i], scaling_list->scaling_lists_16x16[i]);
}
}
static void
fill_iq_matrix_32x32 (VAIQMatrixBufferHEVC * iq_matrix,
GstH265ScalingList * scaling_list)
{
guint i;
g_assert (G_N_ELEMENTS (iq_matrix->ScalingList32x32) == 2);
g_assert (G_N_ELEMENTS (iq_matrix->ScalingList32x32[0]) == 64);
for (i = 0; i < G_N_ELEMENTS (iq_matrix->ScalingList32x32); i++) {
gst_h265_quant_matrix_32x32_get_raster_from_uprightdiagonal
(iq_matrix->ScalingList32x32[i], scaling_list->scaling_lists_32x32[i]);
}
}
static void
fill_iq_matrix_dc_16x16 (VAIQMatrixBufferHEVC * iq_matrix,
GstH265ScalingList * scaling_list)
{
guint i;
for (i = 0; i < 6; i++)
iq_matrix->ScalingListDC16x16[i] =
scaling_list->scaling_list_dc_coef_minus8_16x16[i] + 8;
}
static void
fill_iq_matrix_dc_32x32 (VAIQMatrixBufferHEVC * iq_matrix,
GstH265ScalingList * scaling_list)
{
guint i;
for (i = 0; i < 2; i++)
iq_matrix->ScalingListDC32x32[i] =
scaling_list->scaling_list_dc_coef_minus8_32x32[i] + 8;
}
static GstVaapiDecoderStatus
ensure_quant_matrix (GstVaapiDecoderH265 * decoder,
GstVaapiPictureH265 * picture)
{
GstVaapiPicture *const base_picture = &picture->base;
GstH265PPS *const pps = get_pps (decoder);
GstH265SPS *const sps = get_sps (decoder);
GstH265ScalingList *scaling_list = NULL;
VAIQMatrixBufferHEVC *iq_matrix;
if (pps &&
(pps->scaling_list_data_present_flag ||
(sps->scaling_list_enabled_flag
&& !sps->scaling_list_data_present_flag)))
scaling_list = &pps->scaling_list;
else if (sps && sps->scaling_list_enabled_flag
&& sps->scaling_list_data_present_flag)
scaling_list = &sps->scaling_list;
else
return GST_VAAPI_DECODER_STATUS_SUCCESS;
base_picture->iq_matrix = GST_VAAPI_IQ_MATRIX_NEW (HEVC, decoder);
if (!base_picture->iq_matrix) {
GST_ERROR ("failed to allocate IQ matrix");
return GST_VAAPI_DECODER_STATUS_ERROR_ALLOCATION_FAILED;
}
iq_matrix = base_picture->iq_matrix->param;
/* Only supporting 4:2:0 */
if (sps->chroma_format_idc != 1)
return GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_CHROMA_FORMAT;
fill_iq_matrix_4x4 (iq_matrix, scaling_list);
fill_iq_matrix_8x8 (iq_matrix, scaling_list);
fill_iq_matrix_16x16 (iq_matrix, scaling_list);
fill_iq_matrix_32x32 (iq_matrix, scaling_list);
fill_iq_matrix_dc_16x16 (iq_matrix, scaling_list);
fill_iq_matrix_dc_32x32 (iq_matrix, scaling_list);
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
static inline gboolean
is_valid_state (guint state, guint ref_state)
{
return (state & ref_state) == ref_state;
}
static GstVaapiDecoderStatus
decode_current_picture (GstVaapiDecoderH265 * decoder)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiPictureH265 *const picture = priv->current_picture;
if (!is_valid_state (priv->decoder_state, GST_H265_VIDEO_STATE_VALID_PICTURE)) {
goto drop_frame;
}
priv->decoder_state = 0;
/*Fixme: Use SEI header values */
priv->pic_structure = GST_VAAPI_PICTURE_STRUCTURE_FRAME;
if (!picture)
return GST_VAAPI_DECODER_STATUS_SUCCESS;
if (!gst_vaapi_picture_decode (GST_VAAPI_PICTURE_CAST (picture)))
goto error;
if (!dpb_add (decoder, picture))
goto error;
gst_vaapi_picture_replace (&priv->current_picture, NULL);
return GST_VAAPI_DECODER_STATUS_SUCCESS;
error:
gst_vaapi_picture_replace (&priv->current_picture, NULL);
return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
drop_frame:
priv->decoder_state = 0;
priv->pic_structure = GST_VAAPI_PICTURE_STRUCTURE_FRAME;
return (GstVaapiDecoderStatus) GST_VAAPI_DECODER_STATUS_DROP_FRAME;
}
static GstVaapiDecoderStatus
parse_vps (GstVaapiDecoderH265 * decoder, GstVaapiDecoderUnit * unit)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiParserInfoH265 *const pi = unit->parsed_info;
GstH265VPS *const vps = &pi->data.vps;
GstH265ParserResult result;
GST_DEBUG ("parse VPS");
priv->parser_state = 0;
memset (vps, 0, sizeof (GstH265VPS));
result = gst_h265_parser_parse_vps (priv->parser, &pi->nalu, vps);
if (result != GST_H265_PARSER_OK)
return get_status (result);
priv->parser_state |= GST_H265_VIDEO_STATE_GOT_VPS;
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
static GstVaapiDecoderStatus
parse_sps (GstVaapiDecoderH265 * decoder, GstVaapiDecoderUnit * unit)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiParserInfoH265 *const pi = unit->parsed_info;
GstH265SPS *const sps = &pi->data.sps;
GstH265ParserResult result;
GST_DEBUG ("parse SPS");
priv->parser_state = 0;
memset (sps, 0, sizeof (GstH265SPS));
result = gst_h265_parser_parse_sps (priv->parser, &pi->nalu, sps, TRUE);
if (result != GST_H265_PARSER_OK)
return get_status (result);
priv->parser_state |= GST_H265_VIDEO_STATE_GOT_SPS;
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
static GstVaapiDecoderStatus
parse_pps (GstVaapiDecoderH265 * decoder, GstVaapiDecoderUnit * unit)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiParserInfoH265 *const pi = unit->parsed_info;
GstH265PPS *const pps = &pi->data.pps;
GstH265ParserResult result;
guint col_width[19], row_height[21];
GST_DEBUG ("parse PPS");
priv->parser_state &= GST_H265_VIDEO_STATE_GOT_SPS;
memset (col_width, 0, sizeof (col_width));
memset (row_height, 0, sizeof (row_height));
memset (pps, 0, sizeof (GstH265PPS));
result = gst_h265_parser_parse_pps (priv->parser, &pi->nalu, pps);
if (result != GST_H265_PARSER_OK)
return get_status (result);
priv->parser_state |= GST_H265_VIDEO_STATE_GOT_PPS;
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
static GstVaapiDecoderStatus
parse_sei (GstVaapiDecoderH265 * decoder, GstVaapiDecoderUnit * unit)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiParserInfoH265 *const pi = unit->parsed_info;
GArray **const sei_ptr = &pi->data.sei;
GstH265ParserResult result;
GST_DEBUG ("parse SEI");
result = gst_h265_parser_parse_sei (priv->parser, &pi->nalu, sei_ptr);
if (result != GST_H265_PARSER_OK) {
GST_WARNING ("failed to parse SEI messages");
return get_status (result);
}
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
static GstVaapiDecoderStatus
parse_slice (GstVaapiDecoderH265 * decoder, GstVaapiDecoderUnit * unit)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiParserInfoH265 *const pi = unit->parsed_info;
GstH265SliceHdr *const slice_hdr = &pi->data.slice_hdr;
GstH265ParserResult result;
GST_DEBUG ("parse slice");
priv->parser_state &= (GST_H265_VIDEO_STATE_GOT_SPS |
GST_H265_VIDEO_STATE_GOT_PPS);
slice_hdr->short_term_ref_pic_set_idx = 0;
memset (slice_hdr, 0, sizeof (GstH265SliceHdr));
result = gst_h265_parser_parse_slice_hdr (priv->parser, &pi->nalu, slice_hdr);
if (result != GST_H265_PARSER_OK)
return get_status (result);
priv->parser_state |= GST_H265_VIDEO_STATE_GOT_SLICE;
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
static GstVaapiDecoderStatus
decode_vps (GstVaapiDecoderH265 * decoder, GstVaapiDecoderUnit * unit)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiParserInfoH265 *const pi = unit->parsed_info;
GstH265VPS *const vps = &pi->data.vps;
GST_DEBUG ("decode VPS");
gst_vaapi_parser_info_h265_replace (&priv->vps[vps->id], pi);
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
static GstVaapiDecoderStatus
decode_sps (GstVaapiDecoderH265 * decoder, GstVaapiDecoderUnit * unit)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiParserInfoH265 *const pi = unit->parsed_info;
GstH265SPS *const sps = &pi->data.sps;
guint high_precision_offsets_enabled_flag = 0, bitdepthC = 0;
GST_DEBUG ("decode SPS");
if (sps->max_latency_increase_plus1[sps->max_sub_layers_minus1])
priv->SpsMaxLatencyPictures =
sps->max_num_reorder_pics[sps->max_sub_layers_minus1] +
sps->max_latency_increase_plus1[sps->max_sub_layers_minus1] - 1;
/* Calculate WpOffsetHalfRangeC: (7-34)
* Fixme: We don't have parser API for sps_range_extension, so assuming
* high_precision_offsets_enabled_flag as zero */
bitdepthC = sps->bit_depth_chroma_minus8 + 8;
priv->WpOffsetHalfRangeC =
1 << (high_precision_offsets_enabled_flag ? (bitdepthC - 1) : 7);
gst_vaapi_parser_info_h265_replace (&priv->sps[sps->id], pi);
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
static GstVaapiDecoderStatus
decode_pps (GstVaapiDecoderH265 * decoder, GstVaapiDecoderUnit * unit)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiParserInfoH265 *const pi = unit->parsed_info;
GstH265PPS *const pps = &pi->data.pps;
GST_DEBUG ("decode PPS");
gst_vaapi_parser_info_h265_replace (&priv->pps[pps->id], pi);
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
static GstVaapiDecoderStatus
decode_sei (GstVaapiDecoderH265 * decoder, GstVaapiDecoderUnit * unit)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiParserInfoH265 *const pi = unit->parsed_info;
guint i;
GST_DEBUG ("decode SEI messages");
for (i = 0; i < pi->data.sei->len; i++) {
const GstH265SEIMessage *const sei =
&g_array_index (pi->data.sei, GstH265SEIMessage, i);
switch (sei->payloadType) {
case GST_H265_SEI_PIC_TIMING:{
const GstH265PicTiming *const pic_timing = &sei->payload.pic_timing;
priv->pic_structure = pic_timing->pic_struct;
break;
}
default:
break;
}
}
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
static GstVaapiDecoderStatus
decode_sequence_end (GstVaapiDecoderH265 * decoder)
{
GstVaapiDecoderStatus status;
GST_DEBUG ("decode sequence-end");
status = decode_current_picture (decoder);
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
return status;
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
/* 8.3.1 - Decoding process for picture order count */
static void
init_picture_poc (GstVaapiDecoderH265 * decoder,
GstVaapiPictureH265 * picture, GstVaapiParserInfoH265 * pi)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstH265SliceHdr *const slice_hdr = &pi->data.slice_hdr;
GstH265SPS *const sps = get_sps (decoder);
const gint32 MaxPicOrderCntLsb =
1 << (sps->log2_max_pic_order_cnt_lsb_minus4 + 4);
guint8 nal_type = pi->nalu.type;
guint8 temporal_id = pi->nalu.temporal_id_plus1 - 1;
GST_DEBUG ("decode PicOrderCntVal");
priv->prev_poc_lsb = priv->poc_lsb;
priv->prev_poc_msb = priv->poc_msb;
if (!(nal_is_irap (nal_type) && picture->NoRaslOutputFlag)) {
priv->prev_poc_lsb = priv->prev_tid0pic_poc_lsb;
priv->prev_poc_msb = priv->prev_tid0pic_poc_msb;
}
/* Finding PicOrderCntMsb */
if (nal_is_irap (nal_type) && picture->NoRaslOutputFlag)
priv->poc_msb = 0;
else {
/* (8-1) */
if ((slice_hdr->pic_order_cnt_lsb < priv->prev_poc_lsb) &&
((priv->prev_poc_lsb - slice_hdr->pic_order_cnt_lsb) >=
(MaxPicOrderCntLsb / 2)))
priv->poc_msb = priv->prev_poc_msb + MaxPicOrderCntLsb;
else if ((slice_hdr->pic_order_cnt_lsb > priv->prev_poc_lsb) &&
((slice_hdr->pic_order_cnt_lsb - priv->prev_poc_lsb) >
(MaxPicOrderCntLsb / 2)))
priv->poc_msb = priv->prev_poc_msb - MaxPicOrderCntLsb;
else
priv->poc_msb = priv->prev_poc_msb;
}
/* (8-2) */
priv->poc = picture->poc = priv->poc_msb + slice_hdr->pic_order_cnt_lsb;
priv->poc_lsb = picture->poc_lsb = slice_hdr->pic_order_cnt_lsb;
if (nal_is_idr (nal_type)) {
picture->poc = 0;
picture->poc_lsb = 0;
priv->poc_lsb = 0;
priv->poc_msb = 0;
priv->prev_poc_lsb = 0;
priv->prev_poc_msb = 0;
priv->prev_tid0pic_poc_lsb = 0;
priv->prev_tid0pic_poc_msb = 0;
}
picture->base.poc = picture->poc;
GST_DEBUG ("PicOrderCntVal %d", picture->base.poc);
if (!temporal_id && !nal_is_rasl (nal_type) &&
!nal_is_radl (nal_type) && nal_is_ref (nal_type)) {
priv->prev_tid0pic_poc_lsb = slice_hdr->pic_order_cnt_lsb;
priv->prev_tid0pic_poc_msb = priv->poc_msb;
}
}
static void
init_picture_refs (GstVaapiDecoderH265 * decoder,
GstVaapiPictureH265 * picture, GstH265SliceHdr * slice_hdr)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
guint32 NumRpsCurrTempList0 = 0, NumRpsCurrTempList1 = 0;
GstVaapiPictureH265 *RefPicListTemp0[16] = { NULL, }, *RefPicListTemp1[16] = {
NULL,};
guint i, rIdx = 0;
guint num_ref_idx_l0_active_minus1 = 0;
guint num_ref_idx_l1_active_minus1 = 0;
GstH265RefPicListModification *ref_pic_list_modification;
guint type;
memset (priv->RefPicList0, 0, sizeof (GstVaapiPictureH265 *) * 16);
memset (priv->RefPicList1, 0, sizeof (GstVaapiPictureH265 *) * 16);
priv->RefPicList0_count = priv->RefPicList1_count = 0;
if (slice_hdr->dependent_slice_segment_flag) {
GstH265SliceHdr *tmp = &priv->prev_independent_slice_pi->data.slice_hdr;
num_ref_idx_l0_active_minus1 = tmp->num_ref_idx_l0_active_minus1;
num_ref_idx_l1_active_minus1 = tmp->num_ref_idx_l1_active_minus1;
ref_pic_list_modification = &tmp->ref_pic_list_modification;
type = tmp->type;
} else {
num_ref_idx_l0_active_minus1 = slice_hdr->num_ref_idx_l0_active_minus1;
num_ref_idx_l1_active_minus1 = slice_hdr->num_ref_idx_l1_active_minus1;
ref_pic_list_modification = &slice_hdr->ref_pic_list_modification;
type = slice_hdr->type;
}
/* decoding process for reference picture list construction needs to be
* invoked only for P and B slice */
if (type == GST_H265_I_SLICE)
return;
NumRpsCurrTempList0 =
MAX ((num_ref_idx_l0_active_minus1 + 1), priv->NumPocTotalCurr);
NumRpsCurrTempList1 =
MAX ((num_ref_idx_l1_active_minus1 + 1), priv->NumPocTotalCurr);
/* (8-8) */
while (rIdx < NumRpsCurrTempList0) {
for (i = 0; i < priv->NumPocStCurrBefore && rIdx < NumRpsCurrTempList0;
rIdx++, i++)
RefPicListTemp0[rIdx] = priv->RefPicSetStCurrBefore[i];
for (i = 0; i < priv->NumPocStCurrAfter && rIdx < NumRpsCurrTempList0;
rIdx++, i++)
RefPicListTemp0[rIdx] = priv->RefPicSetStCurrAfter[i];
for (i = 0; i < priv->NumPocLtCurr && rIdx < NumRpsCurrTempList0;
rIdx++, i++)
RefPicListTemp0[rIdx] = priv->RefPicSetLtCurr[i];
}
/* construct RefPicList0 (8-9) */
for (rIdx = 0; rIdx <= num_ref_idx_l0_active_minus1; rIdx++)
priv->RefPicList0[rIdx] =
ref_pic_list_modification->ref_pic_list_modification_flag_l0 ?
RefPicListTemp0[ref_pic_list_modification->list_entry_l0[rIdx]] :
RefPicListTemp0[rIdx];
priv->RefPicList0_count = rIdx;
if (type == GST_H265_B_SLICE) {
rIdx = 0;
/* (8-10) */
while (rIdx < NumRpsCurrTempList1) {
for (i = 0; i < priv->NumPocStCurrAfter && rIdx < NumRpsCurrTempList1;
rIdx++, i++)
RefPicListTemp1[rIdx] = priv->RefPicSetStCurrAfter[i];
for (i = 0; i < priv->NumPocStCurrBefore && rIdx < NumRpsCurrTempList1;
rIdx++, i++)
RefPicListTemp1[rIdx] = priv->RefPicSetStCurrBefore[i];
for (i = 0; i < priv->NumPocLtCurr && rIdx < NumRpsCurrTempList1;
rIdx++, i++)
RefPicListTemp1[rIdx] = priv->RefPicSetLtCurr[i];
}
/* construct RefPicList1 (8-10) */
for (rIdx = 0; rIdx <= num_ref_idx_l1_active_minus1; rIdx++)
priv->RefPicList1[rIdx] =
ref_pic_list_modification->ref_pic_list_modification_flag_l1 ?
RefPicListTemp1[ref_pic_list_modification->list_entry_l1
[rIdx]] : RefPicListTemp1[rIdx];
priv->RefPicList1_count = rIdx;
}
}
static gboolean
init_picture (GstVaapiDecoderH265 * decoder,
GstVaapiPictureH265 * picture, GstVaapiParserInfoH265 * pi)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiPicture *const base_picture = &picture->base;
GstH265SliceHdr *const slice_hdr = &pi->data.slice_hdr;
base_picture->pts = GST_VAAPI_DECODER_CODEC_FRAME (decoder)->pts;
base_picture->type = GST_VAAPI_PICTURE_TYPE_NONE;
if (nal_is_idr (pi->nalu.type)) {
GST_DEBUG ("<IDR>");
GST_VAAPI_PICTURE_FLAG_SET (picture, GST_VAAPI_PICTURE_FLAG_IDR);
}
if (pi->nalu.type >= GST_H265_NAL_SLICE_BLA_W_LP &&
pi->nalu.type <= GST_H265_NAL_SLICE_CRA_NUT)
picture->RapPicFlag = TRUE;
/*Fixme: Use SEI header values */
base_picture->structure = GST_VAAPI_PICTURE_STRUCTURE_FRAME;
picture->structure = base_picture->structure;
/*NoRaslOutputFlag ==1 if the current picture is
1) an IDR picture
2) a BLA picture
3) a CRA picture that is the first access unit in the bitstream
4) first picture that follows an end of sequence NAL unit in decoding order
5) has HandleCraAsBlaFlag == 1 (set by external means, so not considering )
*/
if (nal_is_idr (pi->nalu.type) || nal_is_bla (pi->nalu.type) ||
(nal_is_cra (pi->nalu.type) && priv->new_bitstream)
|| priv->prev_nal_is_eos) {
picture->NoRaslOutputFlag = 1;
}
if (nal_is_irap (pi->nalu.type)) {
picture->IntraPicFlag = TRUE;
priv->associated_irap_NoRaslOutputFlag = picture->NoRaslOutputFlag;
}
if (nal_is_rasl (pi->nalu.type) && priv->associated_irap_NoRaslOutputFlag)
picture->output_flag = FALSE;
else
picture->output_flag = slice_hdr->pic_output_flag;
init_picture_poc (decoder, picture, pi);
return TRUE;
}
static void
vaapi_init_picture (VAPictureHEVC * pic)
{
pic->picture_id = VA_INVALID_SURFACE;
pic->pic_order_cnt = 0;
pic->flags = VA_PICTURE_HEVC_INVALID;
}
static void
vaapi_fill_picture (VAPictureHEVC * pic, GstVaapiPictureH265 * picture,
guint picture_structure)
{
if (!picture_structure)
picture_structure = picture->structure;
pic->picture_id = picture->base.surface_id;
pic->pic_order_cnt = picture->poc;
pic->flags = 0;
/* Set the VAPictureHEVC flags */
if (GST_VAAPI_PICTURE_IS_LONG_TERM_REFERENCE (picture))
pic->flags |= VA_PICTURE_HEVC_LONG_TERM_REFERENCE;
if (GST_VAAPI_PICTURE_FLAG_IS_SET (picture,
GST_VAAPI_PICTURE_FLAG_RPS_ST_CURR_BEFORE))
pic->flags |= VA_PICTURE_HEVC_RPS_ST_CURR_BEFORE;
else if (GST_VAAPI_PICTURE_FLAG_IS_SET (picture,
GST_VAAPI_PICTURE_FLAG_RPS_ST_CURR_AFTER))
pic->flags |= VA_PICTURE_HEVC_RPS_ST_CURR_AFTER;
else if (GST_VAAPI_PICTURE_FLAG_IS_SET (picture,
GST_VAAPI_PICTURE_FLAG_RPS_LT_CURR))
pic->flags |= VA_PICTURE_HEVC_RPS_LT_CURR;
switch (picture_structure) {
case GST_VAAPI_PICTURE_STRUCTURE_FRAME:
break;
case GST_VAAPI_PICTURE_STRUCTURE_TOP_FIELD:
pic->flags |= VA_PICTURE_HEVC_FIELD_PIC;
break;
case GST_VAAPI_PICTURE_STRUCTURE_BOTTOM_FIELD:
pic->flags |= VA_PICTURE_HEVC_FIELD_PIC;
pic->flags |= VA_PICTURE_HEVC_BOTTOM_FIELD;
break;
default:
break;
}
}
static guint
get_index_for_RefPicListX (VAPictureHEVC * ReferenceFrames,
GstVaapiPictureH265 * pic)
{
gint i;
for (i = 0; i < 15; i++) {
if ((ReferenceFrames[i].picture_id != VA_INVALID_ID) && pic) {
if ((ReferenceFrames[i].pic_order_cnt == pic->poc) &&
(ReferenceFrames[i].picture_id == pic->base.surface_id)) {
return i;
}
}
}
return 0xff;
}
static gboolean
fill_picture (GstVaapiDecoderH265 * decoder, GstVaapiPictureH265 * picture)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiPicture *const base_picture = &picture->base;
GstH265PPS *const pps = get_pps (decoder);
GstH265SPS *const sps = get_sps (decoder);
VAPictureParameterBufferHEVC *const pic_param = base_picture->param;
guint i, n;
pic_param->pic_fields.value = 0;
pic_param->slice_parsing_fields.value = 0;
/* Fill in VAPictureHEVC */
vaapi_fill_picture (&pic_param->CurrPic, picture, 0);
/* Fill in ReferenceFrames */
for (i = 0, n = 0; i < priv->dpb_count; i++) {
GstVaapiFrameStore *const fs = priv->dpb[i];
if ((gst_vaapi_frame_store_has_reference (fs)))
vaapi_fill_picture (&pic_param->ReferenceFrames[n++], fs->buffer,
fs->buffer->structure);
if (n >= G_N_ELEMENTS (pic_param->ReferenceFrames))
break;
}
for (; n < G_N_ELEMENTS (pic_param->ReferenceFrames); n++)
vaapi_init_picture (&pic_param->ReferenceFrames[n]);
#define COPY_FIELD(s, f) \
pic_param->f = (s)->f
#define COPY_BFM(a, s, f) \
pic_param->a.bits.f = (s)->f
COPY_FIELD (sps, pic_width_in_luma_samples);
COPY_FIELD (sps, pic_height_in_luma_samples);
COPY_BFM (pic_fields, sps, chroma_format_idc);
COPY_BFM (pic_fields, sps, separate_colour_plane_flag);
COPY_BFM (pic_fields, sps, pcm_enabled_flag);
COPY_BFM (pic_fields, sps, scaling_list_enabled_flag);
COPY_BFM (pic_fields, pps, transform_skip_enabled_flag);
COPY_BFM (pic_fields, sps, amp_enabled_flag);
COPY_BFM (pic_fields, sps, strong_intra_smoothing_enabled_flag);
COPY_BFM (pic_fields, pps, sign_data_hiding_enabled_flag);
COPY_BFM (pic_fields, pps, constrained_intra_pred_flag);
COPY_BFM (pic_fields, pps, cu_qp_delta_enabled_flag);
COPY_BFM (pic_fields, pps, weighted_pred_flag);
COPY_BFM (pic_fields, pps, weighted_bipred_flag);
COPY_BFM (pic_fields, pps, transquant_bypass_enabled_flag);
COPY_BFM (pic_fields, pps, tiles_enabled_flag);
COPY_BFM (pic_fields, pps, entropy_coding_sync_enabled_flag);
pic_param->pic_fields.bits.pps_loop_filter_across_slices_enabled_flag =
pps->loop_filter_across_slices_enabled_flag;
COPY_BFM (pic_fields, pps, loop_filter_across_tiles_enabled_flag);
COPY_BFM (pic_fields, sps, pcm_loop_filter_disabled_flag);
/* Fix: Assign value based on sps_max_num_reorder_pics */
pic_param->pic_fields.bits.NoPicReorderingFlag = 0;
/* Fix: Enable if picture has no B slices */
pic_param->pic_fields.bits.NoBiPredFlag = 0;
pic_param->sps_max_dec_pic_buffering_minus1 =
sps->max_dec_pic_buffering_minus1[0];
COPY_FIELD (sps, bit_depth_luma_minus8);
COPY_FIELD (sps, bit_depth_chroma_minus8);
COPY_FIELD (sps, pcm_sample_bit_depth_luma_minus1);
COPY_FIELD (sps, pcm_sample_bit_depth_chroma_minus1);
COPY_FIELD (sps, log2_min_luma_coding_block_size_minus3);
COPY_FIELD (sps, log2_diff_max_min_luma_coding_block_size);
COPY_FIELD (sps, log2_min_transform_block_size_minus2);
COPY_FIELD (sps, log2_diff_max_min_transform_block_size);
COPY_FIELD (sps, log2_min_pcm_luma_coding_block_size_minus3);
COPY_FIELD (sps, log2_diff_max_min_pcm_luma_coding_block_size);
COPY_FIELD (sps, max_transform_hierarchy_depth_intra);
COPY_FIELD (sps, max_transform_hierarchy_depth_inter);
COPY_FIELD (pps, init_qp_minus26);
COPY_FIELD (pps, diff_cu_qp_delta_depth);
pic_param->pps_cb_qp_offset = pps->cb_qp_offset;
pic_param->pps_cr_qp_offset = pps->cr_qp_offset;
COPY_FIELD (pps, log2_parallel_merge_level_minus2);
COPY_FIELD (pps, num_tile_columns_minus1);
COPY_FIELD (pps, num_tile_rows_minus1);
for (i = 0; i <= pps->num_tile_columns_minus1; i++)
pic_param->column_width_minus1[i] = pps->column_width_minus1[i];
for (; i < 19; i++)
pic_param->column_width_minus1[i] = 0;
for (i = 0; i <= pps->num_tile_rows_minus1; i++)
pic_param->row_height_minus1[i] = pps->row_height_minus1[i];
for (; i < 21; i++)
pic_param->row_height_minus1[i] = 0;
COPY_BFM (slice_parsing_fields, pps, lists_modification_present_flag);
COPY_BFM (slice_parsing_fields, sps, long_term_ref_pics_present_flag);
pic_param->slice_parsing_fields.bits.sps_temporal_mvp_enabled_flag =
sps->temporal_mvp_enabled_flag;
COPY_BFM (slice_parsing_fields, pps, cabac_init_present_flag);
COPY_BFM (slice_parsing_fields, pps, output_flag_present_flag);
COPY_BFM (slice_parsing_fields, pps, dependent_slice_segments_enabled_flag);
pic_param->slice_parsing_fields.
bits.pps_slice_chroma_qp_offsets_present_flag =
pps->slice_chroma_qp_offsets_present_flag;
COPY_BFM (slice_parsing_fields, sps, sample_adaptive_offset_enabled_flag);
COPY_BFM (slice_parsing_fields, pps, deblocking_filter_override_enabled_flag);
pic_param->slice_parsing_fields.bits.pps_disable_deblocking_filter_flag =
pps->deblocking_filter_disabled_flag;
COPY_BFM (slice_parsing_fields, pps,
slice_segment_header_extension_present_flag);
pic_param->slice_parsing_fields.bits.RapPicFlag = picture->RapPicFlag;
pic_param->slice_parsing_fields.bits.IdrPicFlag =
GST_VAAPI_PICTURE_FLAG_IS_SET (picture, GST_VAAPI_PICTURE_FLAG_IDR);
pic_param->slice_parsing_fields.bits.IntraPicFlag = picture->IntraPicFlag;
COPY_FIELD (sps, log2_max_pic_order_cnt_lsb_minus4);
COPY_FIELD (sps, num_short_term_ref_pic_sets);
pic_param->num_long_term_ref_pic_sps = sps->num_long_term_ref_pics_sps;
COPY_FIELD (pps, num_ref_idx_l0_default_active_minus1);
COPY_FIELD (pps, num_ref_idx_l1_default_active_minus1);
pic_param->pps_beta_offset_div2 = pps->beta_offset_div2;
pic_param->pps_tc_offset_div2 = pps->tc_offset_div2;
COPY_FIELD (pps, num_extra_slice_header_bits);
/*Fixme: Set correct value as mentioned in va_dec_hevc.h */
pic_param->st_rps_bits = 0;
return TRUE;
}
/* Detection of the first VCL NAL unit of a coded picture (7.4.2.4.5 ) */
static gboolean
is_new_picture (GstVaapiParserInfoH265 * pi, GstVaapiParserInfoH265 * prev_pi)
{
GstH265SliceHdr *const slice_hdr = &pi->data.slice_hdr;
if (!prev_pi)
return TRUE;
if (slice_hdr->first_slice_segment_in_pic_flag)
return TRUE;
return FALSE;
}
/* Detection of a new access unit, assuming we are already in presence
of a new picture */
static inline gboolean
is_new_access_unit (GstVaapiParserInfoH265 * pi,
GstVaapiParserInfoH265 * prev_pi)
{
if (!prev_pi)
return TRUE;
return FALSE;
}
static gboolean
has_entry_in_rps (GstVaapiPictureH265 * dpb_pic,
GstVaapiPictureH265 ** rps_list, guint rps_list_length)
{
guint i;
if (!dpb_pic || !rps_list || !rps_list_length)
return FALSE;
for (i = 0; i < rps_list_length; i++) {
if (rps_list[i] && rps_list[i]->poc == dpb_pic->poc)
return TRUE;
}
return FALSE;
}
/* the derivation process for the RPS and the picture marking */
static void
derive_and_mark_rps (GstVaapiDecoderH265 * decoder,
GstVaapiPictureH265 * picture, GstVaapiParserInfoH265 * pi,
gint32 * CurrDeltaPocMsbPresentFlag, gint32 * FollDeltaPocMsbPresentFlag)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiPictureH265 *dpb_pic = NULL;
guint i;
memset (priv->RefPicSetLtCurr, 0, sizeof (GstVaapiPictureH265 *) * 16);
memset (priv->RefPicSetLtFoll, 0, sizeof (GstVaapiPictureH265 *) * 16);
memset (priv->RefPicSetStCurrBefore, 0, sizeof (GstVaapiPictureH265 *) * 16);
memset (priv->RefPicSetStCurrAfter, 0, sizeof (GstVaapiPictureH265 *) * 16);
memset (priv->RefPicSetStFoll, 0, sizeof (GstVaapiPictureH265 *) * 16);
/* (8-6) */
for (i = 0; i < priv->NumPocLtCurr; i++) {
if (!CurrDeltaPocMsbPresentFlag[i]) {
dpb_pic = dpb_get_picture (decoder, priv->PocLtCurr[i], TRUE);
if (dpb_pic)
priv->RefPicSetLtCurr[i] = dpb_pic;
else
priv->RefPicSetLtCurr[i] = NULL;
} else {
dpb_pic = dpb_get_picture (decoder, priv->PocLtCurr[i], FALSE);
if (dpb_pic)
priv->RefPicSetLtCurr[i] = dpb_pic;
else
priv->RefPicSetLtCurr[i] = NULL;
}
}
for (; i < 16; i++)
priv->RefPicSetLtCurr[i] = NULL;
for (i = 0; i < priv->NumPocLtFoll; i++) {
if (!FollDeltaPocMsbPresentFlag[i]) {
dpb_pic = dpb_get_picture (decoder, priv->PocLtFoll[i], TRUE);
if (dpb_pic)
priv->RefPicSetLtFoll[i] = dpb_pic;
else
priv->RefPicSetLtFoll[i] = NULL;
} else {
dpb_pic = dpb_get_picture (decoder, priv->PocLtFoll[i], FALSE);
if (dpb_pic)
priv->RefPicSetLtFoll[i] = dpb_pic;
else
priv->RefPicSetLtFoll[i] = NULL;
}
}
for (; i < 16; i++)
priv->RefPicSetLtFoll[i] = NULL;
/* Mark all ref pics in RefPicSetLtCurr and RefPicSetLtFol as long_term_refs */
for (i = 0; i < priv->NumPocLtCurr; i++) {
if (priv->RefPicSetLtCurr[i])
gst_vaapi_picture_h265_set_reference (priv->RefPicSetLtCurr[i],
GST_VAAPI_PICTURE_FLAG_LONG_TERM_REFERENCE |
GST_VAAPI_PICTURE_FLAG_RPS_LT_CURR);
}
for (i = 0; i < priv->NumPocLtFoll; i++) {
if (priv->RefPicSetLtFoll[i])
gst_vaapi_picture_h265_set_reference (priv->RefPicSetLtFoll[i],
GST_VAAPI_PICTURE_FLAG_LONG_TERM_REFERENCE |
GST_VAAPI_PICTURE_FLAG_RPS_LT_FOLL);
}
/* (8-7) */
for (i = 0; i < priv->NumPocStCurrBefore; i++) {
dpb_pic = dpb_get_ref_picture (decoder, priv->PocStCurrBefore[i], TRUE);
if (dpb_pic) {
gst_vaapi_picture_h265_set_reference (dpb_pic,
GST_VAAPI_PICTURE_FLAG_SHORT_TERM_REFERENCE |
GST_VAAPI_PICTURE_FLAG_RPS_ST_CURR_BEFORE);
priv->RefPicSetStCurrBefore[i] = dpb_pic;
} else
priv->RefPicSetStCurrBefore[i] = NULL;
}
for (; i < 16; i++)
priv->RefPicSetStCurrBefore[i] = NULL;
for (i = 0; i < priv->NumPocStCurrAfter; i++) {
dpb_pic = dpb_get_ref_picture (decoder, priv->PocStCurrAfter[i], TRUE);
if (dpb_pic) {
gst_vaapi_picture_h265_set_reference (dpb_pic,
GST_VAAPI_PICTURE_FLAG_SHORT_TERM_REFERENCE |
GST_VAAPI_PICTURE_FLAG_RPS_ST_CURR_AFTER);
priv->RefPicSetStCurrAfter[i] = dpb_pic;
} else
priv->RefPicSetStCurrAfter[i] = NULL;
}
for (; i < 16; i++)
priv->RefPicSetStCurrAfter[i] = NULL;
for (i = 0; i < priv->NumPocStFoll; i++) {
dpb_pic = dpb_get_ref_picture (decoder, priv->PocStFoll[i], TRUE);
if (dpb_pic) {
gst_vaapi_picture_h265_set_reference (dpb_pic,
GST_VAAPI_PICTURE_FLAG_SHORT_TERM_REFERENCE |
GST_VAAPI_PICTURE_FLAG_RPS_ST_FOLL);
priv->RefPicSetStFoll[i] = dpb_pic;
} else
priv->RefPicSetStFoll[i] = NULL;
}
for (; i < 16; i++)
priv->RefPicSetStFoll[i] = NULL;
/* Mark all dpb pics not beloging to RefPicSet*[] as unused for ref */
for (i = 0; i < priv->dpb_count; i++) {
dpb_pic = priv->dpb[i]->buffer;
if (dpb_pic &&
!has_entry_in_rps (dpb_pic, priv->RefPicSetLtCurr, priv->NumPocLtCurr)
&& !has_entry_in_rps (dpb_pic, priv->RefPicSetLtFoll,
priv->NumPocLtFoll)
&& !has_entry_in_rps (dpb_pic, priv->RefPicSetStCurrAfter,
priv->NumPocStCurrAfter)
&& !has_entry_in_rps (dpb_pic, priv->RefPicSetStCurrBefore,
priv->NumPocStCurrBefore)
&& !has_entry_in_rps (dpb_pic, priv->RefPicSetStFoll,
priv->NumPocStFoll))
gst_vaapi_picture_h265_set_reference (dpb_pic, 0);
}
}
/* Decoding process for reference picture set (8.3.2) */
static gboolean
decode_ref_pic_set (GstVaapiDecoderH265 * decoder,
GstVaapiPictureH265 * picture, GstVaapiParserInfoH265 * pi)
{
guint i, j, k;
gint32 CurrDeltaPocMsbPresentFlag[16] = { 0, };
gint32 FollDeltaPocMsbPresentFlag[16] = { 0, };
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstH265SliceHdr *const slice_hdr = &pi->data.slice_hdr;
GstH265SPS *const sps = get_sps (decoder);
const gint32 MaxPicOrderCntLsb =
1 << (sps->log2_max_pic_order_cnt_lsb_minus4 + 4);
/* if it is an irap pic, set all ref pics in dpb as unused for ref */
if (nal_is_irap (pi->nalu.type) && picture->NoRaslOutputFlag) {
for (i = 0; i < priv->dpb_count; i++) {
GstVaapiFrameStore *const fs = priv->dpb[i];
gst_vaapi_picture_h265_set_reference (fs->buffer, 0);
}
}
/* Reset everything for IDR */
if (nal_is_idr (pi->nalu.type)) {
memset (priv->PocStCurrBefore, 0, sizeof (guint) * 16);
memset (priv->PocStCurrAfter, 0, sizeof (guint) * 16);
memset (priv->PocStFoll, 0, sizeof (guint) * 16);
memset (priv->PocLtCurr, 0, sizeof (guint) * 16);
memset (priv->PocLtFoll, 0, sizeof (guint) * 16);
priv->NumPocStCurrBefore = priv->NumPocStCurrAfter = priv->NumPocStFoll = 0;
priv->NumPocLtCurr = priv->NumPocLtFoll = 0;
} else {
GstH265ShortTermRefPicSet *stRefPic = NULL;
gint32 num_lt_pics, pocLt, PocLsbLt[16] = { 0, }
, UsedByCurrPicLt[16] = {
0,};
gint32 DeltaPocMsbCycleLt[16] = { 0, };
gint numtotalcurr = 0;
/* this is based on CurrRpsIdx described in spec */
if (!slice_hdr->short_term_ref_pic_set_sps_flag)
stRefPic = &slice_hdr->short_term_ref_pic_sets;
else if (sps->num_short_term_ref_pic_sets)
stRefPic =
&sps->short_term_ref_pic_set[slice_hdr->short_term_ref_pic_set_idx];
g_assert (stRefPic != NULL);
for (i = 0, j = 0, k = 0; i < stRefPic->NumNegativePics; i++) {
if (stRefPic->UsedByCurrPicS0[i]) {
priv->PocStCurrBefore[j++] = picture->poc + stRefPic->DeltaPocS0[i];
numtotalcurr++;
} else
priv->PocStFoll[k++] = picture->poc + stRefPic->DeltaPocS0[i];
}
priv->NumPocStCurrBefore = j;
for (i = 0, j = 0; i < stRefPic->NumPositivePics; i++) {
if (stRefPic->UsedByCurrPicS1[i]) {
priv->PocStCurrAfter[j++] = picture->poc + stRefPic->DeltaPocS1[i];
numtotalcurr++;
} else
priv->PocStFoll[k++] = picture->poc + stRefPic->DeltaPocS1[i];
}
priv->NumPocStCurrAfter = j;
priv->NumPocStFoll = k;
num_lt_pics = slice_hdr->num_long_term_sps + slice_hdr->num_long_term_pics;
/* The variables PocLsbLt[i] and UsedByCurrPicLt[i] are derived as follows: */
for (i = 0; i < num_lt_pics; i++) {
if (i < slice_hdr->num_long_term_sps) {
PocLsbLt[i] = sps->lt_ref_pic_poc_lsb_sps[slice_hdr->lt_idx_sps[i]];
UsedByCurrPicLt[i] =
sps->used_by_curr_pic_lt_sps_flag[slice_hdr->lt_idx_sps[i]];
} else {
PocLsbLt[i] = slice_hdr->poc_lsb_lt[i];
UsedByCurrPicLt[i] = slice_hdr->used_by_curr_pic_lt_flag[i];
}
if (UsedByCurrPicLt[i])
numtotalcurr++;
}
priv->NumPocTotalCurr = numtotalcurr;
/* The variable DeltaPocMsbCycleLt[i] is derived as follows: (7-38) */
for (i = 0; i < num_lt_pics; i++) {
if (i == 0 || i == slice_hdr->num_long_term_sps)
DeltaPocMsbCycleLt[i] = slice_hdr->delta_poc_msb_cycle_lt[i];
else
DeltaPocMsbCycleLt[i] =
slice_hdr->delta_poc_msb_cycle_lt[i] + DeltaPocMsbCycleLt[i - 1];
}
/* (8-5) */
for (i = 0, j = 0, k = 0; i < num_lt_pics; i++) {
pocLt = PocLsbLt[i];
if (slice_hdr->delta_poc_msb_present_flag[i])
pocLt +=
picture->poc - DeltaPocMsbCycleLt[i] * MaxPicOrderCntLsb -
slice_hdr->pic_order_cnt_lsb;
if (UsedByCurrPicLt[i]) {
priv->PocLtCurr[j] = pocLt;
CurrDeltaPocMsbPresentFlag[j++] =
slice_hdr->delta_poc_msb_present_flag[i];
} else {
priv->PocLtFoll[k] = pocLt;
FollDeltaPocMsbPresentFlag[k++] =
slice_hdr->delta_poc_msb_present_flag[i];
}
}
priv->NumPocLtCurr = j;
priv->NumPocLtFoll = k;
}
/* the derivation process for the RPS and the picture marking */
derive_and_mark_rps (decoder, picture, pi, CurrDeltaPocMsbPresentFlag,
FollDeltaPocMsbPresentFlag);
return TRUE;
}
static GstVaapiDecoderStatus
decode_picture (GstVaapiDecoderH265 * decoder, GstVaapiDecoderUnit * unit)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiParserInfoH265 *pi = unit->parsed_info;
GstH265SliceHdr *const slice_hdr = &pi->data.slice_hdr;
GstH265PPS *const pps = ensure_pps (decoder, slice_hdr->pps);
GstH265SPS *const sps = ensure_sps (decoder, slice_hdr->pps->sps);
GstVaapiPictureH265 *picture;
GstVaapiDecoderStatus status;
g_return_val_if_fail (pps != NULL, GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN);
g_return_val_if_fail (sps != NULL, GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN);
status = ensure_context (decoder, sps);
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
return status;
priv->decoder_state = 0;
/* Create new picture */
picture = gst_vaapi_picture_h265_new (decoder);
if (!picture) {
GST_ERROR ("failed to allocate picture");
return GST_VAAPI_DECODER_STATUS_ERROR_ALLOCATION_FAILED;
}
gst_vaapi_picture_replace (&priv->current_picture, picture);
gst_vaapi_picture_unref (picture);
/* Update cropping rectangle */
if (sps->conformance_window_flag) {
GstVaapiRectangle crop_rect;
crop_rect.x = sps->crop_rect_x;
crop_rect.y = sps->crop_rect_y;
crop_rect.width = sps->crop_rect_width;
crop_rect.height = sps->crop_rect_height;
gst_vaapi_picture_set_crop_rect (&picture->base, &crop_rect);
}
status = ensure_quant_matrix (decoder, picture);
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS) {
GST_ERROR ("failed to reset quantizer matrix");
return status;
}
if (!init_picture (decoder, picture, pi))
return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
/* Drop all RASL pictures having NoRaslOutputFlag is TRUE for the
* associated IRAP picture */
if (nal_is_rasl (pi->nalu.type) && priv->associated_irap_NoRaslOutputFlag) {
gst_vaapi_picture_replace (&priv->current_picture, NULL);
return (GstVaapiDecoderStatus) GST_VAAPI_DECODER_STATUS_DROP_FRAME;
}
if (!decode_ref_pic_set (decoder, picture, pi))
return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
if (!dpb_init (decoder, picture, pi))
return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
if (!fill_picture (decoder, picture))
return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
priv->decoder_state = pi->state;
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
static inline guint
get_slice_data_byte_offset (GstH265SliceHdr * slice_hdr, guint nal_header_bytes)
{
guint epb_count;
epb_count = slice_hdr->n_emulation_prevention_bytes;
return nal_header_bytes + (slice_hdr->header_size + 7) / 8 - epb_count;
}
static gboolean
fill_pred_weight_table (GstVaapiDecoderH265 * decoder,
GstVaapiSlice * slice, GstH265SliceHdr * slice_hdr)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
VASliceParameterBufferHEVC *const slice_param = slice->param;
GstH265PPS *const pps = get_pps (decoder);
GstH265SPS *const sps = get_sps (decoder);
GstH265PredWeightTable *const w = &slice_hdr->pred_weight_table;
gint chroma_weight, chroma_log2_weight_denom;
gint i, j;
slice_param->luma_log2_weight_denom = 0;
slice_param->delta_chroma_log2_weight_denom = 0;
if ((pps->weighted_pred_flag && GST_H265_IS_P_SLICE (slice_hdr)) ||
(pps->weighted_bipred_flag && GST_H265_IS_B_SLICE (slice_hdr))) {
/* Fixme: This should be done in parser apis */
memset (slice_param->delta_luma_weight_l0, 0,
sizeof (slice_param->delta_luma_weight_l0));
memset (slice_param->luma_offset_l0, 0,
sizeof (slice_param->luma_offset_l0));
memset (slice_param->delta_luma_weight_l1, 0,
sizeof (slice_param->delta_luma_weight_l1));
memset (slice_param->luma_offset_l1, 0,
sizeof (slice_param->luma_offset_l1));
memset (slice_param->delta_chroma_weight_l0, 0,
sizeof (slice_param->delta_chroma_weight_l0));
memset (slice_param->ChromaOffsetL0, 0,
sizeof (slice_param->ChromaOffsetL0));
memset (slice_param->delta_chroma_weight_l1, 0,
sizeof (slice_param->delta_chroma_weight_l1));
memset (slice_param->ChromaOffsetL1, 0,
sizeof (slice_param->ChromaOffsetL1));
slice_param->luma_log2_weight_denom = w->luma_log2_weight_denom;
if (sps->chroma_array_type != 0)
slice_param->delta_chroma_log2_weight_denom =
w->delta_chroma_log2_weight_denom;
chroma_log2_weight_denom =
slice_param->luma_log2_weight_denom +
slice_param->delta_chroma_log2_weight_denom;
for (i = 0; i <= slice_param->num_ref_idx_l0_active_minus1; i++) {
if (slice_hdr->pred_weight_table.luma_weight_l0_flag[i]) {
slice_param->delta_luma_weight_l0[i] = w->delta_luma_weight_l0[i];
slice_param->luma_offset_l0[i] = w->luma_offset_l0[i];
}
if (slice_hdr->pred_weight_table.chroma_weight_l0_flag[i]) {
for (j = 0; j < 2; j++) {
slice_param->delta_chroma_weight_l0[i][j] =
w->delta_chroma_weight_l0[i][j];
/* Find ChromaWeightL0 */
chroma_weight =
(1 << chroma_log2_weight_denom) + w->delta_chroma_weight_l0[i][j];
/* 7-56 */
slice_param->ChromaOffsetL0[i][j] = CLAMP (
(priv->WpOffsetHalfRangeC + w->delta_chroma_offset_l0[i][j] -
((priv->WpOffsetHalfRangeC *
chroma_weight) >> chroma_log2_weight_denom)),
-priv->WpOffsetHalfRangeC, priv->WpOffsetHalfRangeC - 1);
}
}
}
if (GST_H265_IS_B_SLICE (slice_hdr)) {
for (i = 0; i <= slice_param->num_ref_idx_l1_active_minus1; i++) {
if (slice_hdr->pred_weight_table.luma_weight_l1_flag[i]) {
slice_param->delta_luma_weight_l1[i] = w->delta_luma_weight_l1[i];
slice_param->luma_offset_l1[i] = w->luma_offset_l1[i];
}
if (slice_hdr->pred_weight_table.chroma_weight_l1_flag[i]) {
for (j = 0; j < 2; j++) {
slice_param->delta_chroma_weight_l1[i][j] =
w->delta_chroma_weight_l1[i][j];
/* Find ChromaWeightL1 */
chroma_weight =
(1 << chroma_log2_weight_denom) +
w->delta_chroma_weight_l1[i][j];
/* 7-56 */
slice_param->ChromaOffsetL1[i][j] =
CLAMP ((priv->WpOffsetHalfRangeC +
w->delta_chroma_offset_l1[i][j] -
((priv->WpOffsetHalfRangeC *
chroma_weight) >> chroma_log2_weight_denom)),
-priv->WpOffsetHalfRangeC, priv->WpOffsetHalfRangeC - 1);
}
}
}
}
}
return TRUE;
}
static gboolean
fill_RefPicList (GstVaapiDecoderH265 * decoder,
GstVaapiPictureH265 * picture, GstVaapiSlice * slice,
GstH265SliceHdr * slice_hdr)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
VASliceParameterBufferHEVC *const slice_param = slice->param;
GstVaapiPicture *const base_picture = &picture->base;
VAPictureParameterBufferHEVC *const pic_param = base_picture->param;
guint i, num_ref_lists = 0, j;
slice_param->num_ref_idx_l0_active_minus1 = 0;
slice_param->num_ref_idx_l1_active_minus1 = 0;
for (j = 0; j < 2; j++)
for (i = 0; i < 15; i++)
slice_param->RefPicList[j][i] = 0xFF;
if (GST_H265_IS_B_SLICE (slice_hdr))
num_ref_lists = 2;
else if (GST_H265_IS_I_SLICE (slice_hdr))
num_ref_lists = 0;
else
num_ref_lists = 1;
if (num_ref_lists < 1)
return TRUE;
slice_param->num_ref_idx_l0_active_minus1 =
slice_hdr->num_ref_idx_l0_active_minus1;
slice_param->num_ref_idx_l1_active_minus1 =
slice_hdr->num_ref_idx_l1_active_minus1;
for (i = 0; i < priv->RefPicList0_count; i++)
slice_param->RefPicList[0][i] =
get_index_for_RefPicListX (pic_param->ReferenceFrames,
priv->RefPicList0[i]);
for (; i < 15; i++)
slice_param->RefPicList[0][i] = 0xFF;
if (num_ref_lists < 2)
return TRUE;
for (i = 0; i < priv->RefPicList1_count; i++)
slice_param->RefPicList[1][i] =
get_index_for_RefPicListX (pic_param->ReferenceFrames,
priv->RefPicList1[i]);
for (; i < 15; i++)
slice_param->RefPicList[1][i] = 0xFF;
return TRUE;
}
static gboolean
fill_slice (GstVaapiDecoderH265 * decoder,
GstVaapiPictureH265 * picture, GstVaapiSlice * slice,
GstVaapiParserInfoH265 * pi, GstVaapiDecoderUnit * unit)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
VASliceParameterBufferHEVC *const slice_param = slice->param;
GstH265SliceHdr *slice_hdr = &pi->data.slice_hdr;
/* Fill in VASliceParameterBufferH265 */
slice_param->LongSliceFlags.value = 0;
slice_param->slice_data_byte_offset =
get_slice_data_byte_offset (slice_hdr, pi->nalu.header_bytes);
slice_param->slice_segment_address = slice_hdr->segment_address;
#define COPY_LFF(f) \
slice_param->LongSliceFlags.fields.f = (slice_hdr)->f
if (GST_VAAPI_PICTURE_FLAG_IS_SET (picture, GST_VAAPI_PICTURE_FLAG_AU_END))
slice_param->LongSliceFlags.fields.LastSliceOfPic = 1;
else
slice_param->LongSliceFlags.fields.LastSliceOfPic = 0;
COPY_LFF (dependent_slice_segment_flag);
/* use most recent independent slice segment header syntax elements
* for filling the missing fields in dependent slice segment header */
if (slice_hdr->dependent_slice_segment_flag)
slice_hdr = &priv->prev_independent_slice_pi->data.slice_hdr;
COPY_LFF (mvd_l1_zero_flag);
COPY_LFF (cabac_init_flag);
COPY_LFF (collocated_from_l0_flag);
slice_param->LongSliceFlags.fields.color_plane_id =
slice_hdr->colour_plane_id;
slice_param->LongSliceFlags.fields.slice_type = slice_hdr->type;
slice_param->LongSliceFlags.fields.slice_sao_luma_flag =
slice_hdr->sao_luma_flag;
slice_param->LongSliceFlags.fields.slice_sao_chroma_flag =
slice_hdr->sao_chroma_flag;
slice_param->LongSliceFlags.fields.slice_temporal_mvp_enabled_flag =
slice_hdr->temporal_mvp_enabled_flag;
slice_param->LongSliceFlags.fields.slice_deblocking_filter_disabled_flag =
slice_hdr->deblocking_filter_disabled_flag;
slice_param->LongSliceFlags.
fields.slice_loop_filter_across_slices_enabled_flag =
slice_hdr->loop_filter_across_slices_enabled_flag;
if (!slice_hdr->temporal_mvp_enabled_flag)
slice_param->collocated_ref_idx = 0xFF;
else
slice_param->collocated_ref_idx = slice_hdr->collocated_ref_idx;
slice_param->num_ref_idx_l0_active_minus1 =
slice_hdr->num_ref_idx_l0_active_minus1;
slice_param->num_ref_idx_l1_active_minus1 =
slice_hdr->num_ref_idx_l1_active_minus1;
slice_param->slice_qp_delta = slice_hdr->qp_delta;
slice_param->slice_cb_qp_offset = slice_hdr->cb_qp_offset;
slice_param->slice_cr_qp_offset = slice_hdr->cr_qp_offset;
slice_param->slice_beta_offset_div2 = slice_hdr->beta_offset_div2;
slice_param->slice_tc_offset_div2 = slice_hdr->tc_offset_div2;
slice_param->five_minus_max_num_merge_cand =
slice_hdr->five_minus_max_num_merge_cand;
if (!fill_RefPicList (decoder, picture, slice, slice_hdr))
return FALSE;
if (!fill_pred_weight_table (decoder, slice, slice_hdr))
return FALSE;
return TRUE;
}
static GstVaapiDecoderStatus
decode_slice (GstVaapiDecoderH265 * decoder, GstVaapiDecoderUnit * unit)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiParserInfoH265 *const pi = unit->parsed_info;
GstVaapiPictureH265 *const picture = priv->current_picture;
GstH265SliceHdr *const slice_hdr = &pi->data.slice_hdr;
GstVaapiSlice *slice;
GstBuffer *const buffer =
GST_VAAPI_DECODER_CODEC_FRAME (decoder)->input_buffer;
GstMapInfo map_info;
GST_DEBUG ("slice (%u bytes)", pi->nalu.size);
if (!is_valid_state (pi->state, GST_H265_VIDEO_STATE_VALID_PICTURE_HEADERS)) {
GST_WARNING ("failed to receive enough headers to decode slice");
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
if (!ensure_pps (decoder, slice_hdr->pps)) {
GST_ERROR ("failed to activate PPS");
return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
}
if (!ensure_sps (decoder, slice_hdr->pps->sps)) {
GST_ERROR ("failed to activate SPS");
return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
}
if (!gst_buffer_map (buffer, &map_info, GST_MAP_READ)) {
GST_ERROR ("failed to map buffer");
return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
}
/* Check wether this is the first/last slice in the current access unit */
if (pi->flags & GST_VAAPI_DECODER_UNIT_FLAG_AU_START)
GST_VAAPI_PICTURE_FLAG_SET (picture, GST_VAAPI_PICTURE_FLAG_AU_START);
if (pi->flags & GST_VAAPI_DECODER_UNIT_FLAG_AU_END)
GST_VAAPI_PICTURE_FLAG_SET (picture, GST_VAAPI_PICTURE_FLAG_AU_END);
slice = GST_VAAPI_SLICE_NEW (HEVC, decoder,
(map_info.data + unit->offset + pi->nalu.offset), pi->nalu.size);
gst_buffer_unmap (buffer, &map_info);
if (!slice) {
GST_ERROR ("failed to allocate slice");
return GST_VAAPI_DECODER_STATUS_ERROR_ALLOCATION_FAILED;
}
init_picture_refs (decoder, picture, slice_hdr);
if (!fill_slice (decoder, picture, slice, pi, unit)) {
gst_vaapi_mini_object_unref (GST_VAAPI_MINI_OBJECT (slice));
return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
}
gst_vaapi_picture_add_slice (GST_VAAPI_PICTURE_CAST (picture), slice);
picture->last_slice_hdr = slice_hdr;
priv->decoder_state |= GST_H265_VIDEO_STATE_GOT_SLICE;
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
static inline gint
scan_for_start_code (GstAdapter * adapter, guint ofs, guint size, guint32 * scp)
{
return (gint) gst_adapter_masked_scan_uint32_peek (adapter,
0xffffff00, 0x00000100, ofs, size, scp);
}
static GstVaapiDecoderStatus
decode_unit (GstVaapiDecoderH265 * decoder, GstVaapiDecoderUnit * unit)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiParserInfoH265 *const pi = unit->parsed_info;
GstVaapiDecoderStatus status;
priv->decoder_state |= pi->state;
switch (pi->nalu.type) {
case GST_H265_NAL_VPS:
status = decode_vps (decoder, unit);
break;
case GST_H265_NAL_SPS:
status = decode_sps (decoder, unit);
break;
case GST_H265_NAL_PPS:
status = decode_pps (decoder, unit);
break;
case GST_H265_NAL_SLICE_TRAIL_N:
case GST_H265_NAL_SLICE_TRAIL_R:
case GST_H265_NAL_SLICE_TSA_N:
case GST_H265_NAL_SLICE_TSA_R:
case GST_H265_NAL_SLICE_STSA_N:
case GST_H265_NAL_SLICE_STSA_R:
case GST_H265_NAL_SLICE_RADL_N:
case GST_H265_NAL_SLICE_RADL_R:
case GST_H265_NAL_SLICE_RASL_N:
case GST_H265_NAL_SLICE_RASL_R:
case GST_H265_NAL_SLICE_BLA_W_LP:
case GST_H265_NAL_SLICE_BLA_W_RADL:
case GST_H265_NAL_SLICE_BLA_N_LP:
case GST_H265_NAL_SLICE_IDR_W_RADL:
case GST_H265_NAL_SLICE_IDR_N_LP:
case GST_H265_NAL_SLICE_CRA_NUT:
/* slice decoding will get started only after completing all the
initialization routines for each picture which is hanlding in
start_frame() call back, so the new_bitstream and prev_nal_is_eos
flags will have effects starting from the next frame onwards */
priv->new_bitstream = FALSE;
priv->prev_nal_is_eos = FALSE;
status = decode_slice (decoder, unit);
break;
case GST_H265_NAL_EOB:
priv->new_bitstream = TRUE;
GST_DEBUG
("Next AU(if there is any) will be the begining of new bitstream");
status = decode_sequence_end (decoder);
break;
case GST_H265_NAL_EOS:
priv->prev_nal_is_eos = TRUE;
status = decode_sequence_end (decoder);
break;
case GST_H265_NAL_SUFFIX_SEI:
case GST_H265_NAL_PREFIX_SEI:
status = decode_sei (decoder, unit);
break;
default:
GST_WARNING ("unsupported NAL unit type %d", pi->nalu.type);
status = GST_VAAPI_DECODER_STATUS_ERROR_BITSTREAM_PARSER;
break;
}
return status;
}
static GstVaapiDecoderStatus
gst_vaapi_decoder_h265_decode_codec_data (GstVaapiDecoder *
base_decoder, const guchar * buf, guint buf_size)
{
GstVaapiDecoderH265 *const decoder =
GST_VAAPI_DECODER_H265_CAST (base_decoder);
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiDecoderStatus status;
GstVaapiDecoderUnit unit;
GstVaapiParserInfoH265 *pi = NULL;
GstH265ParserResult result;
guint num_nal_arrays, num_nals;
guint i, j, ofs;
unit.parsed_info = NULL;
if (buf_size < 23)
return GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA;
if (buf[0] != 1) {
GST_ERROR ("failed to decode codec-data, not in hvcC format");
return GST_VAAPI_DECODER_STATUS_ERROR_BITSTREAM_PARSER;
}
priv->nal_length_size = (buf[21] & 0x03) + 1;
GST_DEBUG ("nal length size %u", priv->nal_length_size);
num_nal_arrays = buf[22];
ofs = 23;
for (i = 0; i < num_nal_arrays; i++) {
num_nals = GST_READ_UINT16_BE (buf + ofs + 1);
for (j = 0; j < num_nals; j++) {
pi = gst_vaapi_parser_info_h265_new ();
if (!pi)
return GST_VAAPI_DECODER_STATUS_ERROR_ALLOCATION_FAILED;
unit.parsed_info = pi;
result = gst_h265_parser_identify_nalu_hevc (priv->parser,
buf, ofs + 3, buf_size, 2, &pi->nalu);
if (result != GST_H265_PARSER_OK) {
status = get_status (result);
goto cleanup;
}
switch (pi->nalu.type) {
case GST_H265_NAL_VPS:
status = parse_vps (decoder, &unit);
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
goto cleanup;
status = decode_vps (decoder, &unit);
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
goto cleanup;
break;
case GST_H265_NAL_SPS:
status = parse_sps (decoder, &unit);
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
goto cleanup;
status = decode_sps (decoder, &unit);
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
goto cleanup;
break;
case GST_H265_NAL_PPS:
status = parse_pps (decoder, &unit);
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
goto cleanup;
status = decode_pps (decoder, &unit);
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
goto cleanup;
break;
}
gst_vaapi_parser_info_h265_replace (&pi, NULL);
}
}
priv->is_hvcC = TRUE;
status = GST_VAAPI_DECODER_STATUS_SUCCESS;
cleanup:
gst_vaapi_parser_info_h265_replace (&pi, NULL);
return status;
}
static GstVaapiDecoderStatus
ensure_decoder (GstVaapiDecoderH265 * decoder)
{
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiDecoderStatus status;
if (!priv->is_opened) {
priv->is_opened = gst_vaapi_decoder_h265_open (decoder);
if (!priv->is_opened)
return GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_CODEC;
status =
gst_vaapi_decoder_decode_codec_data (GST_VAAPI_DECODER_CAST (decoder));
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
return status;
}
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
static GstVaapiDecoderStatus
gst_vaapi_decoder_h265_parse (GstVaapiDecoder * base_decoder,
GstAdapter * adapter, gboolean at_eos, GstVaapiDecoderUnit * unit)
{
GstVaapiDecoderH265 *const decoder =
GST_VAAPI_DECODER_H265_CAST (base_decoder);
GstVaapiDecoderH265Private *const priv = &decoder->priv;
GstVaapiParserState *const ps = GST_VAAPI_PARSER_STATE (base_decoder);
GstVaapiParserInfoH265 *pi;
GstVaapiDecoderStatus status;
GstH265ParserResult result;
guchar *buf;
guint i, size, buf_size, nalu_size, flags;
guint32 start_code;
gint ofs, ofs2;
gboolean at_au_end = FALSE;
status = ensure_decoder (decoder);
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
return status;
switch (priv->stream_alignment) {
case GST_VAAPI_STREAM_ALIGN_H265_NALU:
case GST_VAAPI_STREAM_ALIGN_H265_AU:
size = gst_adapter_available_fast (adapter);
break;
default:
size = gst_adapter_available (adapter);
break;
}
if (priv->is_hvcC) {
if (size < priv->nal_length_size)
return GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA;
buf = (guchar *) & start_code;
g_assert (priv->nal_length_size <= sizeof (start_code));
gst_adapter_copy (adapter, buf, 0, priv->nal_length_size);
nalu_size = 0;
for (i = 0; i < priv->nal_length_size; i++)
nalu_size = (nalu_size << 8) | buf[i];
buf_size = priv->nal_length_size + nalu_size;
if (size < buf_size)
return GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA;
else if (priv->stream_alignment == GST_VAAPI_STREAM_ALIGN_H265_AU)
at_au_end = (buf_size == size);
} else {
if (size < 4)
return GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA;
if (priv->stream_alignment == GST_VAAPI_STREAM_ALIGN_H265_NALU)
buf_size = size;
else {
ofs = scan_for_start_code (adapter, 0, size, NULL);
if (ofs < 0)
return GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA;
if (ofs > 0) {
gst_adapter_flush (adapter, ofs);
size -= ofs;
}
ofs2 = ps->input_offset2 - ofs - 4;
if (ofs2 < 4)
ofs2 = 4;
ofs = G_UNLIKELY (size < ofs2 + 4) ? -1 :
scan_for_start_code (adapter, ofs2, size - ofs2, NULL);
if (ofs < 0) {
// Assume the whole NAL unit is present if end-of-stream
// or stream buffers aligned on access unit boundaries
if (priv->stream_alignment == GST_VAAPI_STREAM_ALIGN_H265_AU)
at_au_end = TRUE;
else if (!at_eos) {
ps->input_offset2 = size;
return GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA;
}
ofs = size;
}
buf_size = ofs;
}
}
ps->input_offset2 = 0;
buf = (guchar *) gst_adapter_map (adapter, buf_size);
if (!buf)
return GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA;
unit->size = buf_size;
pi = gst_vaapi_parser_info_h265_new ();
if (!pi)
return GST_VAAPI_DECODER_STATUS_ERROR_ALLOCATION_FAILED;
gst_vaapi_decoder_unit_set_parsed_info (unit,
pi, (GDestroyNotify) gst_vaapi_mini_object_unref);
if (priv->is_hvcC)
result = gst_h265_parser_identify_nalu_hevc (priv->parser,
buf, 0, buf_size, priv->nal_length_size, &pi->nalu);
else
result = gst_h265_parser_identify_nalu_unchecked (priv->parser,
buf, 0, buf_size, &pi->nalu);
status = get_status (result);
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
return status;
switch (pi->nalu.type) {
case GST_H265_NAL_VPS:
status = parse_vps (decoder, unit);
break;
case GST_H265_NAL_SPS:
status = parse_sps (decoder, unit);
break;
case GST_H265_NAL_PPS:
status = parse_pps (decoder, unit);
break;
case GST_H265_NAL_PREFIX_SEI:
case GST_H265_NAL_SUFFIX_SEI:
status = parse_sei (decoder, unit);
break;
case GST_H265_NAL_SLICE_TRAIL_N:
case GST_H265_NAL_SLICE_TRAIL_R:
case GST_H265_NAL_SLICE_TSA_N:
case GST_H265_NAL_SLICE_TSA_R:
case GST_H265_NAL_SLICE_STSA_N:
case GST_H265_NAL_SLICE_STSA_R:
case GST_H265_NAL_SLICE_RADL_N:
case GST_H265_NAL_SLICE_RADL_R:
case GST_H265_NAL_SLICE_RASL_N:
case GST_H265_NAL_SLICE_RASL_R:
case GST_H265_NAL_SLICE_BLA_W_LP:
case GST_H265_NAL_SLICE_BLA_W_RADL:
case GST_H265_NAL_SLICE_BLA_N_LP:
case GST_H265_NAL_SLICE_IDR_W_RADL:
case GST_H265_NAL_SLICE_IDR_N_LP:
case GST_H265_NAL_SLICE_CRA_NUT:
status = parse_slice (decoder, unit);
break;
default:
status = GST_VAAPI_DECODER_STATUS_SUCCESS;
break;
}
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
return status;
flags = 0;
if (at_au_end) {
flags |= GST_VAAPI_DECODER_UNIT_FLAG_FRAME_END |
GST_VAAPI_DECODER_UNIT_FLAG_AU_END;
}
switch (pi->nalu.type) {
case GST_H265_NAL_AUD:
flags |= GST_VAAPI_DECODER_UNIT_FLAG_AU_START;
flags |= GST_VAAPI_DECODER_UNIT_FLAG_FRAME_START;
/* fall-through */
case GST_H265_NAL_FD:
flags |= GST_VAAPI_DECODER_UNIT_FLAG_SKIP;
break;
case GST_H265_NAL_EOB:
flags |= GST_VAAPI_DECODER_UNIT_FLAG_STREAM_END;
/* fall-through */
case GST_H265_NAL_SUFFIX_SEI:
case GST_H265_NAL_EOS:
flags |= GST_VAAPI_DECODER_UNIT_FLAG_FRAME_END;
flags |= GST_VAAPI_DECODER_UNIT_FLAG_AU_END;
break;
case GST_H265_NAL_VPS:
case GST_H265_NAL_SPS:
case GST_H265_NAL_PPS:
case GST_H265_NAL_PREFIX_SEI:
flags |= GST_VAAPI_DECODER_UNIT_FLAG_AU_START;
flags |= GST_VAAPI_DECODER_UNIT_FLAG_FRAME_START;
break;
case GST_H265_NAL_SLICE_TRAIL_N:
case GST_H265_NAL_SLICE_TRAIL_R:
case GST_H265_NAL_SLICE_TSA_N:
case GST_H265_NAL_SLICE_TSA_R:
case GST_H265_NAL_SLICE_STSA_N:
case GST_H265_NAL_SLICE_STSA_R:
case GST_H265_NAL_SLICE_RADL_N:
case GST_H265_NAL_SLICE_RADL_R:
case GST_H265_NAL_SLICE_RASL_N:
case GST_H265_NAL_SLICE_RASL_R:
case GST_H265_NAL_SLICE_BLA_W_LP:
case GST_H265_NAL_SLICE_BLA_W_RADL:
case GST_H265_NAL_SLICE_BLA_N_LP:
case GST_H265_NAL_SLICE_IDR_W_RADL:
case GST_H265_NAL_SLICE_IDR_N_LP:
case GST_H265_NAL_SLICE_CRA_NUT:
flags |= GST_VAAPI_DECODER_UNIT_FLAG_SLICE;
if (priv->prev_pi &&
(priv->prev_pi->flags & GST_VAAPI_DECODER_UNIT_FLAG_AU_END)) {
flags |= GST_VAAPI_DECODER_UNIT_FLAG_AU_START |
GST_VAAPI_DECODER_UNIT_FLAG_FRAME_START;
} else if (is_new_picture (pi, priv->prev_slice_pi)) {
flags |= GST_VAAPI_DECODER_UNIT_FLAG_FRAME_START;
if (is_new_access_unit (pi, priv->prev_slice_pi))
flags |= GST_VAAPI_DECODER_UNIT_FLAG_AU_START;
}
gst_vaapi_parser_info_h265_replace (&priv->prev_slice_pi, pi);
if (!pi->data.slice_hdr.dependent_slice_segment_flag)
gst_vaapi_parser_info_h265_replace (&priv->prev_independent_slice_pi,
pi);
break;
default:
/* Fix */
break;
}
if ((flags & GST_VAAPI_DECODER_UNIT_FLAGS_AU) && priv->prev_slice_pi)
priv->prev_slice_pi->flags |= GST_VAAPI_DECODER_UNIT_FLAG_AU_END;
GST_VAAPI_DECODER_UNIT_FLAG_SET (unit, flags);
pi->nalu.data = NULL;
pi->state = priv->parser_state;
pi->flags = flags;
gst_vaapi_parser_info_h265_replace (&priv->prev_pi, pi);
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
static GstVaapiDecoderStatus
gst_vaapi_decoder_h265_decode (GstVaapiDecoder * base_decoder,
GstVaapiDecoderUnit * unit)
{
GstVaapiDecoderH265 *const decoder =
GST_VAAPI_DECODER_H265_CAST (base_decoder);
GstVaapiDecoderStatus status;
status = ensure_decoder (decoder);
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
return status;
return decode_unit (decoder, unit);
}
static GstVaapiDecoderStatus
gst_vaapi_decoder_h265_start_frame (GstVaapiDecoder * base_decoder,
GstVaapiDecoderUnit * unit)
{
GstVaapiDecoderH265 *const decoder =
GST_VAAPI_DECODER_H265_CAST (base_decoder);
return decode_picture (decoder, unit);
}
static GstVaapiDecoderStatus
gst_vaapi_decoder_h265_end_frame (GstVaapiDecoder * base_decoder)
{
GstVaapiDecoderH265 *const decoder =
GST_VAAPI_DECODER_H265_CAST (base_decoder);
return decode_current_picture (decoder);
}
static GstVaapiDecoderStatus
gst_vaapi_decoder_h265_flush (GstVaapiDecoder * base_decoder)
{
GstVaapiDecoderH265 *const decoder =
GST_VAAPI_DECODER_H265_CAST (base_decoder);
dpb_flush (decoder);
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
static void
gst_vaapi_decoder_h265_class_init (GstVaapiDecoderH265Class * klass)
{
GstVaapiMiniObjectClass *const object_class =
GST_VAAPI_MINI_OBJECT_CLASS (klass);
GstVaapiDecoderClass *const decoder_class = GST_VAAPI_DECODER_CLASS (klass);
object_class->size = sizeof (GstVaapiDecoderH265);
object_class->finalize = (GDestroyNotify) gst_vaapi_decoder_finalize;
decoder_class->create = gst_vaapi_decoder_h265_create;
decoder_class->destroy = gst_vaapi_decoder_h265_destroy;
decoder_class->parse = gst_vaapi_decoder_h265_parse;
decoder_class->decode = gst_vaapi_decoder_h265_decode;
decoder_class->start_frame = gst_vaapi_decoder_h265_start_frame;
decoder_class->end_frame = gst_vaapi_decoder_h265_end_frame;
decoder_class->flush = gst_vaapi_decoder_h265_flush;
decoder_class->decode_codec_data = gst_vaapi_decoder_h265_decode_codec_data;
}
static inline const GstVaapiDecoderClass *
gst_vaapi_decoder_h265_class (void)
{
static GstVaapiDecoderH265Class g_class;
static gsize g_class_init = FALSE;
if (g_once_init_enter (&g_class_init)) {
gst_vaapi_decoder_h265_class_init (&g_class);
g_once_init_leave (&g_class_init, TRUE);
}
return GST_VAAPI_DECODER_CLASS (&g_class);
}
/**
* gst_vaapi_decoder_h265_set_alignment:
* @decoder: a #GstVaapiDecoderH265
* @alignment: the #GstVaapiStreamAlignH265
*
* Specifies how stream buffers are aligned / fed, i.e. the boundaries
* of each buffer that is supplied to the decoder. This could be no
* specific alignment, NAL unit boundaries, or access unit boundaries.
*/
void
gst_vaapi_decoder_h265_set_alignment (GstVaapiDecoderH265 * decoder,
GstVaapiStreamAlignH265 alignment)
{
g_return_if_fail (decoder != NULL);
decoder->priv.stream_alignment = alignment;
}
/**
* gst_vaapi_decoder_h265_new:
* @display: a #GstVaapiDisplay
* @caps: a #GstCaps holding codec information
*
* Creates a new #GstVaapiDecoder for MPEG-2 decoding. The @caps can
* hold extra information like codec-data and pictured coded size.
*
* Return value: the newly allocated #GstVaapiDecoder object
*/
GstVaapiDecoder *
gst_vaapi_decoder_h265_new (GstVaapiDisplay * display, GstCaps * caps)
{
return gst_vaapi_decoder_new (gst_vaapi_decoder_h265_class (), display, caps);
}
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