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VP9: libgstvaapi: Add VP9 decoder

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This commit is contained in:
Sreerenj Balachandran 2015-11-06 15:12:51 +02:00
parent a3d63724dd
commit db877e015d
3 changed files with 725 additions and 0 deletions
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9
gst-libs/gst/vaapi/Makefile.am
View file

@ -175,6 +175,13 @@ libgstvaapi_source_h += $(libgstvaapi_hevcdec_source_h)
libgstvaapi_source_priv_h += $(libgstvaapi_hevcdec_source_priv_h) libgstvaapi_source_priv_h += $(libgstvaapi_hevcdec_source_priv_h)
endif endif
libgstvaapi_vp9dec_source_c = gstvaapidecoder_vp9.c
libgstvaapi_vp9dec_source_h = gstvaapidecoder_vp9.h
if USE_VP9_DECODER
libgstvaapi_source_c += $(libgstvaapi_vp9dec_source_c)
libgstvaapi_source_h += $(libgstvaapi_vp9dec_source_h)
endif
libgstvaapi_enc_source_c = \ libgstvaapi_enc_source_c = \
gstvaapicodedbuffer.c \ gstvaapicodedbuffer.c \
gstvaapicodedbufferpool.c \ gstvaapicodedbufferpool.c \
@ -594,6 +601,8 @@ EXTRA_DIST += \
$(libgstvaapi_hevcdec_source_c) \ $(libgstvaapi_hevcdec_source_c) \
$(libgstvaapi_hevcdec_source_h) \ $(libgstvaapi_hevcdec_source_h) \
$(libgstvaapi_hevcdec_source_priv_h) \ $(libgstvaapi_hevcdec_source_priv_h) \
$(libgstvaapi_vp9dec_source_c) \
$(libgstvaapi_vp9dec_source_h) \
$(libgstvaapi_jpegenc_source_h) \ $(libgstvaapi_jpegenc_source_h) \
$(libgstvaapi_jpegenc_source_c) \ $(libgstvaapi_jpegenc_source_c) \
$(libgstvaapi_vp8enc_source_h) \ $(libgstvaapi_vp8enc_source_h) \

679
gst-libs/gst/vaapi/gstvaapidecoder_vp9.c Normal file
View file

@ -0,0 +1,679 @@
/*
* gstvaapidecoder_vp9.c - VP9 decoder
*
* Copyright (C) 2014-2015 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_vp9
* @short_description: VP9 decoder
*/
#include "sysdeps.h"
#include <gst/codecparsers/gstvp9parser.h>
#include "gstvaapidecoder_vp9.h"
#include "gstvaapidecoder_objects.h"
#include "gstvaapidecoder_priv.h"
#include "gstvaapidisplay_priv.h"
#include "gstvaapiobject_priv.h"
#include "gstvaapicompat.h"
#ifdef HAVE_VA_VA_DEC_VP9_H
#include <va/va_dec_vp9.h>
#endif
#define DEBUG 1
#include "gstvaapidebug.h"
#define GST_VAAPI_DECODER_VP9_CAST(decoder) \
((GstVaapiDecoderVp9 *)(decoder))
typedef struct _GstVaapiDecoderVp9Private GstVaapiDecoderVp9Private;
typedef struct _GstVaapiDecoderVp9Class GstVaapiDecoderVp9Class;
struct _GstVaapiDecoderVp9Private
{
GstVaapiProfile profile;
guint width;
guint height;
GstVp9Parser *parser;
GstVp9FrameHdr frame_hdr;
GstVaapiPicture *current_picture;
GstVaapiPicture *ref_frames[GST_VP9_REF_FRAMES]; /* reference frames in ref_slots[max_ref] */
guint num_frames; /* number of frames in a super frame */
guint frame_sizes[8]; /* size of frames in a super frame */
guint frame_cnt; /* frame count variable for super frame */
guint total_idx_size; /* super frame index size (full block size) */
guint had_superframe_hdr:1; /* indicate the presense of super frame */
guint size_changed:1;
};
/**
* GstVaapiDecoderVp9:
*
* A decoder based on Vp9.
*/
struct _GstVaapiDecoderVp9
{
/*< private > */
GstVaapiDecoder parent_instance;
GstVaapiDecoderVp9Private priv;
};
/**
* GstVaapiDecoderVp9Class:
*
* A decoder class based on Vp9.
*/
struct _GstVaapiDecoderVp9Class
{
/*< private > */
GstVaapiDecoderClass parent_class;
};
static GstVaapiDecoderStatus
get_status (GstVp9ParserResult result)
{
GstVaapiDecoderStatus status;
switch (result) {
case GST_VP9_PARSER_OK:
status = GST_VAAPI_DECODER_STATUS_SUCCESS;
break;
case GST_VP9_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_vp9_close (GstVaapiDecoderVp9 * decoder)
{
GstVaapiDecoderVp9Private *const priv = &decoder->priv;
guint i;
for (i = 0; i < GST_VP9_REF_FRAMES; i++)
gst_vaapi_picture_replace (&priv->ref_frames[i], NULL);
if (priv->parser)
gst_vp9_parser_free (priv->parser);
}
static gboolean
gst_vaapi_decoder_vp9_open (GstVaapiDecoderVp9 * decoder)
{
GstVaapiDecoderVp9Private *const priv = &decoder->priv;
gst_vaapi_decoder_vp9_close (decoder);
priv->parser = gst_vp9_parser_new ();
return TRUE;
}
static void
gst_vaapi_decoder_vp9_destroy (GstVaapiDecoder * base_decoder)
{
GstVaapiDecoderVp9 *const decoder = GST_VAAPI_DECODER_VP9_CAST (base_decoder);
gst_vaapi_decoder_vp9_close (decoder);
}
static gboolean
gst_vaapi_decoder_vp9_create (GstVaapiDecoder * base_decoder)
{
GstVaapiDecoderVp9 *const decoder = GST_VAAPI_DECODER_VP9_CAST (base_decoder);
GstVaapiDecoderVp9Private *const priv = &decoder->priv;
if (!gst_vaapi_decoder_vp9_open (decoder))
return FALSE;
priv->profile = GST_VAAPI_PROFILE_UNKNOWN;
return TRUE;
}
static GstVaapiDecoderStatus
ensure_context (GstVaapiDecoderVp9 * decoder)
{
GstVaapiDecoderVp9Private *const priv = &decoder->priv;
const GstVaapiProfile profile = GST_VAAPI_PROFILE_VP9;
const GstVaapiEntrypoint entrypoint = GST_VAAPI_ENTRYPOINT_VLD;
gboolean reset_context = FALSE;
if (priv->profile != profile) {
if (!gst_vaapi_display_has_decoder (GST_VAAPI_DECODER_DISPLAY (decoder),
profile, entrypoint))
return GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_PROFILE;
priv->profile = profile;
reset_context = TRUE;
}
if (priv->size_changed) {
GST_DEBUG ("size changed");
priv->size_changed = FALSE;
reset_context = TRUE;
}
if (reset_context) {
GstVaapiContextInfo info;
info.profile = priv->profile;
info.entrypoint = entrypoint;
info.chroma_type = GST_VAAPI_CHROMA_TYPE_YUV420;
info.width = priv->width;
info.height = priv->height;
info.ref_frames = 8;
reset_context =
gst_vaapi_decoder_ensure_context (GST_VAAPI_DECODER (decoder), &info);
if (!reset_context)
return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
}
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
static void
init_picture (GstVaapiDecoderVp9 * decoder, GstVaapiPicture * picture)
{
GstVaapiDecoderVp9Private *const priv = &decoder->priv;
GstVp9FrameHdr *const frame_hdr = &priv->frame_hdr;
picture->structure = GST_VAAPI_PICTURE_STRUCTURE_FRAME;
picture->type =
(frame_hdr->frame_type ==
GST_VP9_KEY_FRAME) ? GST_VAAPI_PICTURE_TYPE_I : GST_VAAPI_PICTURE_TYPE_P;
picture->pts = GST_VAAPI_DECODER_CODEC_FRAME (decoder)->pts;
if (!frame_hdr->show_frame)
GST_VAAPI_PICTURE_FLAG_SET (picture, GST_VAAPI_PICTURE_FLAG_SKIPPED);
}
static void
vaapi_fill_ref_frames (GstVaapiDecoderVp9 * decoder, GstVaapiPicture * picture,
GstVp9FrameHdr * frame_hdr, VADecPictureParameterBufferVP9 * pic_param)
{
GstVaapiDecoderVp9Private *const priv = &decoder->priv;
guint i;
if (frame_hdr->frame_type == GST_VP9_KEY_FRAME) {
for (i = 0; i < G_N_ELEMENTS (priv->ref_frames); i++)
pic_param->reference_frames[i] = picture->surface_id;
} else {
pic_param->pic_fields.bits.last_ref_frame =
frame_hdr->ref_frame_indices[GST_VP9_REF_FRAME_LAST - 1];
pic_param->pic_fields.bits.last_ref_frame_sign_bias =
frame_hdr->ref_frame_sign_bias[GST_VP9_REF_FRAME_LAST - 1];
if (frame_hdr->ref_frame_indices[1]) {
pic_param->pic_fields.bits.golden_ref_frame =
frame_hdr->ref_frame_indices[GST_VP9_REF_FRAME_GOLDEN - 1];
pic_param->pic_fields.bits.golden_ref_frame_sign_bias =
frame_hdr->ref_frame_sign_bias[GST_VP9_REF_FRAME_GOLDEN - 1];
pic_param->pic_fields.bits.alt_ref_frame =
frame_hdr->ref_frame_indices[GST_VP9_REF_FRAME_ALTREF - 1];
pic_param->pic_fields.bits.alt_ref_frame_sign_bias =
frame_hdr->ref_frame_sign_bias[GST_VP9_REF_FRAME_ALTREF - 1];
}
}
for (i = 0; i < G_N_ELEMENTS (priv->ref_frames); i++) {
pic_param->reference_frames[i] =
priv->ref_frames[i] ? priv->
ref_frames[i]->surface_id : VA_INVALID_SURFACE;
}
}
static gboolean
fill_picture (GstVaapiDecoderVp9 * decoder, GstVaapiPicture * picture)
{
GstVaapiDecoderVp9Private *priv = &decoder->priv;
VADecPictureParameterBufferVP9 *pic_param = picture->param;
GstVp9Parser *parser = priv->parser;
GstVp9FrameHdr *frame_hdr = &priv->frame_hdr;
gint i;
/* Fill in VAPictureParameterBufferVP9 */
pic_param->frame_width = priv->width;
pic_param->frame_height = priv->height;
/* Fill in ReferenceFrames */
vaapi_fill_ref_frames (decoder, picture, frame_hdr, pic_param);
#define COPY_FIELD(s, f) \
pic_param->f = (s)->f
#define COPY_BFM(a, s, f) \
pic_param->a.bits.f = (s)->f
COPY_BFM (pic_fields, frame_hdr, subsampling_x);
COPY_BFM (pic_fields, frame_hdr, subsampling_y);
COPY_BFM (pic_fields, frame_hdr, frame_type);
COPY_BFM (pic_fields, frame_hdr, show_frame);
COPY_BFM (pic_fields, frame_hdr, error_resilient_mode);
COPY_BFM (pic_fields, frame_hdr, intra_only);
COPY_BFM (pic_fields, frame_hdr, allow_high_precision_mv);
COPY_BFM (pic_fields, frame_hdr, mcomp_filter_type);
COPY_BFM (pic_fields, frame_hdr, frame_parallel_decoding_mode);
COPY_BFM (pic_fields, frame_hdr, reset_frame_context);
COPY_BFM (pic_fields, frame_hdr, refresh_frame_context);
COPY_BFM (pic_fields, frame_hdr, frame_context_idx);
COPY_BFM (pic_fields, parser, lossless_flag);
pic_param->pic_fields.bits.segmentation_enabled =
frame_hdr->segmentation.enabled;
pic_param->pic_fields.bits.segmentation_temporal_update =
frame_hdr->segmentation.temporal_update;
pic_param->pic_fields.bits.segmentation_update_map =
frame_hdr->segmentation.update_map;
COPY_FIELD (&frame_hdr->loopfilter, filter_level);
COPY_FIELD (&frame_hdr->loopfilter, sharpness_level);
COPY_FIELD (frame_hdr, log2_tile_rows);
COPY_FIELD (frame_hdr, log2_tile_columns);
COPY_FIELD (frame_hdr, frame_header_length_in_bytes);
COPY_FIELD (frame_hdr, first_partition_size);
g_assert (G_N_ELEMENTS (pic_param->mb_segment_tree_probs) ==
G_N_ELEMENTS (parser->mb_segment_tree_probs));
g_assert (G_N_ELEMENTS (pic_param->segment_pred_probs) ==
G_N_ELEMENTS (parser->segment_pred_probs));
memcpy (pic_param->mb_segment_tree_probs, parser->mb_segment_tree_probs,
sizeof (parser->mb_segment_tree_probs));
memcpy (pic_param->segment_pred_probs, parser->segment_pred_probs,
sizeof (parser->segment_pred_probs));
return TRUE;
}
static gboolean
fill_slice (GstVaapiDecoderVp9 * decoder, GstVaapiSlice * slice)
{
GstVaapiDecoderVp9Private *const priv = &decoder->priv;
GstVp9Parser *parser = priv->parser;
VASliceParameterBufferVP9 *const slice_param = slice->param;
GstVp9FrameHdr *const frame_hdr = &priv->frame_hdr;
guint i;
#define COPY_SEG_FIELD(s, f) \
seg_param->f = (s)->f
/* Fill in VASliceParameterBufferVP9 */
for (i = 0; i < GST_VP9_MAX_SEGMENTS; i++) {
VASegmentParameterVP9 *seg_param = &slice_param->seg_param[i];
GstVp9Segmentation *seg = &parser->segmentation[i];
memcpy (seg_param->filter_level, seg->filter_level,
sizeof (seg->filter_level));
COPY_SEG_FIELD (seg, luma_ac_quant_scale);
COPY_SEG_FIELD (seg, luma_dc_quant_scale);
COPY_SEG_FIELD (seg, chroma_ac_quant_scale);
COPY_SEG_FIELD (seg, chroma_dc_quant_scale);
seg_param->segment_flags.fields.segment_reference_skipped =
seg->reference_skip;
seg_param->segment_flags.fields.segment_reference_enabled =
seg->reference_frame_enabled;
seg_param->segment_flags.fields.segment_reference = seg->reference_frame;
}
/* Fixme: When segmentation is disabled, only seg_param[0] has valid values,
* all other entries should be populated with 0 ? */
return TRUE;
}
static GstVaapiDecoderStatus
decode_slice (GstVaapiDecoderVp9 * decoder, GstVaapiPicture * picture,
const guchar * buf, guint buf_size)
{
GstVaapiSlice *slice;
slice = GST_VAAPI_SLICE_NEW (VP9, decoder, buf, buf_size);
if (!slice) {
GST_ERROR ("failed to allocate slice");
return GST_VAAPI_DECODER_STATUS_ERROR_ALLOCATION_FAILED;
}
if (!fill_slice (decoder, slice)) {
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);
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
static void
update_ref_frames (GstVaapiDecoderVp9 * decoder)
{
GstVaapiDecoderVp9Private *const priv = &decoder->priv;
GstVaapiPicture *picture = priv->current_picture;
GstVp9FrameHdr *const frame_hdr = &priv->frame_hdr;
guint8 refresh_frame_flags, mask, i = 0;
if (frame_hdr->frame_type == GST_VP9_KEY_FRAME)
refresh_frame_flags = (1 << GST_VP9_REF_FRAMES) - 1;
else
refresh_frame_flags = frame_hdr->refresh_frame_flags;
for (mask = refresh_frame_flags; mask; mask >>= 1, ++i) {
if (mask & 1)
gst_vaapi_picture_replace (&priv->ref_frames[i], picture);
}
}
#ifdef GST_VAAPI_PICTURE_NEW
#undef GST_VAAPI_PICTURE_NEW
#endif
#define GST_VAAPI_PICTURE_NEW(codec, decoder) \
gst_vaapi_picture_new (GST_VAAPI_DECODER_CAST (decoder), \
NULL, sizeof (G_PASTE (VADecPictureParameterBuffer, codec)))
static GstVaapiDecoderStatus
decode_picture (GstVaapiDecoderVp9 * decoder, const guchar * buf,
guint buf_size)
{
GstVaapiDecoderVp9Private *const priv = &decoder->priv;
GstVaapiPicture *picture;
GstVaapiDecoderStatus status;
status = ensure_context (decoder);
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
return status;
/* Fixme: handle show_existing_frame */
/* Create new picture */
picture = GST_VAAPI_PICTURE_NEW (VP9, 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);
init_picture (decoder, picture);
if (!fill_picture (decoder, picture))
return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
return decode_slice (decoder, picture, buf, buf_size);
}
static GstVaapiDecoderStatus
decode_current_picture (GstVaapiDecoderVp9 * decoder)
{
GstVaapiDecoderVp9Private *const priv = &decoder->priv;
GstVaapiPicture *const picture = priv->current_picture;
GstVp9FrameHdr *const frame_hdr = &priv->frame_hdr;
if (!picture)
return GST_VAAPI_DECODER_STATUS_SUCCESS;
if (!gst_vaapi_picture_decode (picture))
goto error;
update_ref_frames (decoder);
if (frame_hdr->show_frame)
if (!gst_vaapi_picture_output (picture))
goto error;
gst_vaapi_picture_replace (&priv->current_picture, NULL);
return GST_VAAPI_DECODER_STATUS_SUCCESS;
error:
/* XXX: fix for cases where first field failed to be decoded */
gst_vaapi_picture_replace (&priv->current_picture, NULL);
return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
}
static gboolean
parse_super_frame (const guchar * data, guint data_size,
guint * frame_sizes, guint * frame_count, guint * total_idx_size)
{
guint8 marker;
guint32 num_frames = 1, frame_size_length, total_index_size;
guint i, j;
if (data_size <= 0)
return FALSE;
marker = data[data_size - 1];
if ((marker & 0xe0) == 0xc0) {
GST_DEBUG ("Got VP9-Super Frame, size %d", data_size);
num_frames = (marker & 0x7) + 1;
frame_size_length = ((marker >> 3) & 0x3) + 1;
total_index_size = 2 + num_frames * frame_size_length;
if ((data_size >= total_index_size)
&& (data[data_size - total_index_size] == marker)) {
const guint8 *x = &data[data_size - total_index_size + 1];
for (i = 0; i < num_frames; i++) {
guint32 cur_frame_size = 0;
for (j = 0; j < frame_size_length; j++)
cur_frame_size |= (*x++) << (j * 8);
frame_sizes[i] = cur_frame_size;
}
*frame_count = num_frames;
*total_idx_size = total_index_size;
} else {
GST_ERROR ("Failed to parse Super-frame");
return FALSE;
}
} else {
*frame_count = num_frames;
frame_sizes[0] = data_size;
*total_idx_size = 0;
}
return TRUE;
}
static GstVaapiDecoderStatus
parse_frame_header (GstVaapiDecoderVp9 * decoder, const guchar * buf,
guint buf_size, GstVp9FrameHdr * frame_hdr)
{
GstVaapiDecoderVp9Private *const priv = &decoder->priv;
GstVp9ParserResult result;
result = gst_vp9_parser_parse_frame_header (priv->parser, frame_hdr,
buf, buf_size);
if (result != GST_VP9_PARSER_OK)
return get_status (result);
if ((frame_hdr->frame_type == GST_VP9_KEY_FRAME) &&
(frame_hdr->width != priv->width || frame_hdr->height != priv->height)) {
priv->width = frame_hdr->width;
priv->height = frame_hdr->height;
priv->size_changed = TRUE;
}
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
static GstVaapiDecoderStatus
gst_vaapi_decoder_vp9_parse (GstVaapiDecoder * base_decoder,
GstAdapter * adapter, gboolean at_eos, GstVaapiDecoderUnit * unit)
{
GstVaapiDecoderVp9 *const decoder = GST_VAAPI_DECODER_VP9_CAST (base_decoder);
GstVaapiDecoderVp9Private *const priv = &decoder->priv;
guchar *buf;
guint buf_size, flags = 0;
static guint cnt = 0;
buf_size = gst_adapter_available (adapter);
if (!buf_size)
return GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA;
buf = (guchar *) gst_adapter_map (adapter, buf_size);
if (!buf)
return GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA;
if (!priv->had_superframe_hdr) {
if (!parse_super_frame (buf, buf_size, priv->frame_sizes, &priv->num_frames,
&priv->total_idx_size))
return GST_VAAPI_DECODER_STATUS_ERROR_BITSTREAM_PARSER;
if (priv->num_frames > 1)
priv->had_superframe_hdr = TRUE;
}
unit->size = priv->frame_sizes[priv->frame_cnt++];
if (priv->frame_cnt == priv->num_frames) {
priv->num_frames = 0;
priv->frame_cnt = 0;
priv->had_superframe_hdr = FALSE;
unit->size += priv->total_idx_size;
}
/* The whole frame is available */
flags |= GST_VAAPI_DECODER_UNIT_FLAG_FRAME_START;
flags |= GST_VAAPI_DECODER_UNIT_FLAG_SLICE;
flags |= GST_VAAPI_DECODER_UNIT_FLAG_FRAME_END;
set_flags:
GST_VAAPI_DECODER_UNIT_FLAG_SET (unit, flags);
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
static GstVaapiDecoderStatus
decode_buffer (GstVaapiDecoderVp9 * decoder, const guchar * buf, guint buf_size)
{
GstVaapiDecoderVp9Private *const priv = &decoder->priv;
GstVaapiDecoderStatus status;
guint size = buf_size;
if (priv->total_idx_size && !priv->had_superframe_hdr) {
size -= priv->total_idx_size;
priv->total_idx_size = 0;
}
status = parse_frame_header (decoder, buf, size, &priv->frame_hdr);
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
return status;
return decode_picture (decoder, buf, size);
}
GstVaapiDecoderStatus
gst_vaapi_decoder_vp9_decode (GstVaapiDecoder * base_decoder,
GstVaapiDecoderUnit * unit)
{
GstVaapiDecoderVp9 *const decoder = GST_VAAPI_DECODER_VP9_CAST (base_decoder);
GstVaapiDecoderStatus status;
GstBuffer *const buffer =
GST_VAAPI_DECODER_CODEC_FRAME (decoder)->input_buffer;
GstMapInfo map_info;
if (!gst_buffer_map (buffer, &map_info, GST_MAP_READ)) {
GST_ERROR ("failed to map buffer");
return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
}
status = decode_buffer (decoder, map_info.data + unit->offset, unit->size);
gst_buffer_unmap (buffer, &map_info);
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
return status;
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
static GstVaapiDecoderStatus
gst_vaapi_decoder_vp9_start_frame (GstVaapiDecoder * base_decoder,
GstVaapiDecoderUnit * base_unit)
{
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
static GstVaapiDecoderStatus
gst_vaapi_decoder_vp9_end_frame (GstVaapiDecoder * base_decoder)
{
GstVaapiDecoderVp9 *const decoder = GST_VAAPI_DECODER_VP9_CAST (base_decoder);
return decode_current_picture (decoder);
}
static GstVaapiDecoderStatus
gst_vaapi_decoder_vp9_flush (GstVaapiDecoder * base_decoder)
{
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
static void
gst_vaapi_decoder_vp9_class_init (GstVaapiDecoderVp9Class * klass)
{
GstVaapiMiniObjectClass *const object_class =
GST_VAAPI_MINI_OBJECT_CLASS (klass);
GstVaapiDecoderClass *const decoder_class = GST_VAAPI_DECODER_CLASS (klass);
object_class->size = sizeof (GstVaapiDecoderVp9);
object_class->finalize = (GDestroyNotify) gst_vaapi_decoder_finalize;
decoder_class->create = gst_vaapi_decoder_vp9_create;
decoder_class->destroy = gst_vaapi_decoder_vp9_destroy;
decoder_class->parse = gst_vaapi_decoder_vp9_parse;
decoder_class->decode = gst_vaapi_decoder_vp9_decode;
decoder_class->start_frame = gst_vaapi_decoder_vp9_start_frame;
decoder_class->end_frame = gst_vaapi_decoder_vp9_end_frame;
decoder_class->flush = gst_vaapi_decoder_vp9_flush;
}
static inline const GstVaapiDecoderClass *
gst_vaapi_decoder_vp9_class (void)
{
static GstVaapiDecoderVp9Class g_class;
static gsize g_class_init = FALSE;
if (g_once_init_enter (&g_class_init)) {
gst_vaapi_decoder_vp9_class_init (&g_class);
g_once_init_leave (&g_class_init, TRUE);
}
return GST_VAAPI_DECODER_CLASS (&g_class);
}
/**
* gst_vaapi_decoder_vp9_new:
* @display: a #GstVaapiDisplay
* @caps: a #GstCaps holding codec information
*
* Creates a new #GstVaapiDecoder for VP9 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_vp9_new (GstVaapiDisplay * display, GstCaps * caps)
{
return gst_vaapi_decoder_new (gst_vaapi_decoder_vp9_class (), display, caps);
}

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gst-libs/gst/vaapi/gstvaapidecoder_vp9.h Normal file
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/*
* gstvaapidecoder_vp9.h - VP9 decoder
*
* Copyright (C) 2015-2016 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
*/
#ifndef GST_VAAPI_DECODER_VP9_H
#define GST_VAAPI_DECODER_VP9_H
#include <gst/vaapi/gstvaapidecoder.h>
G_BEGIN_DECLS
typedef struct _GstVaapiDecoderVp9 GstVaapiDecoderVp9;
GstVaapiDecoder *
gst_vaapi_decoder_vp9_new (GstVaapiDisplay * display, GstCaps * caps);
G_END_DECLS
#endif /* GST_VAAPI_DECODER_VP9_H */