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gstreamer/gst/vaapi/gstvaapidecode.c
Matteo Valdina 7872d12695 vaapidecode: Requests upstream a key unit at parse or decode error. 
This is done to resume decoding after a parse error or decode error.

Bugzilla: https://bugzilla.gnome.org/show_bug.cgi?id=797006
2018-09-03 16:11:13 +02:00

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/*
* gstvaapidecode.c - VA-API video decoder
*
* Copyright (C) 2010-2011 Splitted-Desktop Systems
* Author: Gwenole Beauchesne <gwenole.beauchesne@splitted-desktop.com>
* Copyright (C) 2011-2014 Intel Corporation
* Author: Gwenole Beauchesne <gwenole.beauchesne@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
*/
#include "gstcompat.h"
#include <gst/vaapi/gstvaapidisplay.h>
#include "gstvaapidecode.h"
#include "gstvaapidecode_props.h"
#include "gstvaapipluginutil.h"
#include "gstvaapivideobuffer.h"
#if (USE_GLX || USE_EGL)
#include "gstvaapivideometa_texture.h"
#endif
#include "gstvaapivideobufferpool.h"
#include "gstvaapivideomemory.h"
#include <gst/vaapi/gstvaapidecoder_h264.h>
#include <gst/vaapi/gstvaapidecoder_jpeg.h>
#include <gst/vaapi/gstvaapidecoder_mpeg2.h>
#include <gst/vaapi/gstvaapidecoder_mpeg4.h>
#include <gst/vaapi/gstvaapidecoder_vc1.h>
#include <gst/vaapi/gstvaapidecoder_vp8.h>
#include <gst/vaapi/gstvaapidecoder_h265.h>
#include <gst/vaapi/gstvaapidecoder_vp9.h>
#define GST_PLUGIN_NAME "vaapidecode"
#define GST_PLUGIN_DESC "A VA-API based video decoder"
#define GST_VAAPI_DECODE_FLOW_PARSE_DATA GST_FLOW_CUSTOM_SUCCESS_2
GST_DEBUG_CATEGORY_STATIC (gst_debug_vaapidecode);
#ifndef GST_DISABLE_GST_DEBUG
#define GST_CAT_DEFAULT gst_debug_vaapidecode
#else
#define GST_CAT_DEFAULT NULL
#endif
#define GST_VAAPI_DECODE_PARAMS_QDATA \
g_quark_from_static_string("vaapidec-params")
/* Default templates */
#define GST_CAPS_CODEC(CODEC) CODEC "; "
/* *INDENT-OFF* */
static const char gst_vaapidecode_sink_caps_str[] =
GST_CAPS_CODEC("video/mpeg, mpegversion=2, systemstream=(boolean)false")
GST_CAPS_CODEC("video/mpeg, mpegversion=4")
GST_CAPS_CODEC("video/x-divx")
GST_CAPS_CODEC("video/x-xvid")
GST_CAPS_CODEC("video/x-h263")
GST_CAPS_CODEC("video/x-h264")
#if USE_H265_DECODER
GST_CAPS_CODEC("video/x-h265")
#endif
GST_CAPS_CODEC("video/x-wmv")
#if USE_VP8_DECODER
GST_CAPS_CODEC("video/x-vp8")
#endif
#if USE_VP9_DECODER
GST_CAPS_CODEC("video/x-vp9")
#endif
;
static const char gst_vaapidecode_src_caps_str[] =
GST_VAAPI_MAKE_SURFACE_CAPS ";"
#if (USE_GLX || USE_EGL)
GST_VAAPI_MAKE_GLTEXUPLOAD_CAPS ";"
#endif
GST_VIDEO_CAPS_MAKE("{ NV12, I420, YV12, P010_10LE }") ";"
GST_VAAPI_MAKE_DMABUF_CAPS;
static GstStaticPadTemplate gst_vaapidecode_src_factory =
GST_STATIC_PAD_TEMPLATE(
"src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS(gst_vaapidecode_src_caps_str));
/* *INDENT-ON* */
typedef struct _GstVaapiDecoderMap GstVaapiDecoderMap;
struct _GstVaapiDecoderMap
{
guint codec;
guint rank;
const gchar *name;
const gchar *caps_str;
void (*install_properties) (GObjectClass * klass);
};
static const GstVaapiDecoderMap vaapi_decode_map[] = {
#if USE_JPEG_DECODER
{GST_VAAPI_CODEC_JPEG, GST_RANK_MARGINAL, "jpeg", "image/jpeg", NULL},
#endif
{GST_VAAPI_CODEC_MPEG2, GST_RANK_PRIMARY, "mpeg2",
"video/mpeg, mpegversion=2, systemstream=(boolean)false", NULL},
{GST_VAAPI_CODEC_MPEG4, GST_RANK_PRIMARY, "mpeg4",
"video/mpeg, mpegversion=4", NULL},
{GST_VAAPI_CODEC_H263, GST_RANK_PRIMARY, "h263", "video/x-h263", NULL},
{GST_VAAPI_CODEC_H264, GST_RANK_PRIMARY, "h264", "video/x-h264",
gst_vaapi_decode_h264_install_properties},
{GST_VAAPI_CODEC_VC1, GST_RANK_PRIMARY, "vc1",
"video/x-wmv, wmvversion=3, format={WMV3,WVC1}", NULL},
#if USE_VP8_DECODER
{GST_VAAPI_CODEC_VP8, GST_RANK_PRIMARY, "vp8", "video/x-vp8", NULL},
#endif
#if USE_VP9_DECODER
{GST_VAAPI_CODEC_VP9, GST_RANK_PRIMARY, "vp9", "video/x-vp9", NULL},
#endif
#if USE_H265_DECODER
{GST_VAAPI_CODEC_H265, GST_RANK_PRIMARY, "h265", "video/x-h265", NULL},
#endif
{0 /* the rest */ , GST_RANK_PRIMARY + 1, NULL,
gst_vaapidecode_sink_caps_str, NULL},
};
static GstElementClass *parent_class = NULL;
GST_VAAPI_PLUGIN_BASE_DEFINE_SET_CONTEXT (parent_class);
static gboolean gst_vaapidecode_update_sink_caps (GstVaapiDecode * decode,
GstCaps * caps);
static gboolean gst_vaapi_decode_input_state_replace (GstVaapiDecode * decode,
const GstVideoCodecState * new_state);
/* invoked if actual VASurface size (not the cropped values)
* changed */
static void
gst_vaapi_decoder_state_changed (GstVaapiDecoder * decoder,
const GstVideoCodecState * codec_state, gpointer user_data)
{
GstVaapiDecode *const decode = GST_VAAPIDECODE (user_data);
g_assert (decode->decoder == decoder);
if (!gst_vaapi_decode_input_state_replace (decode, codec_state))
return;
if (!gst_vaapidecode_update_sink_caps (decode, decode->input_state->caps))
return;
}
static GstVideoCodecState *
copy_video_codec_state (const GstVideoCodecState * in_state)
{
GstVideoCodecState *state;
g_return_val_if_fail (in_state != NULL, NULL);
state = g_slice_new0 (GstVideoCodecState);
state->ref_count = 1;
state->info = in_state->info;
state->caps = gst_caps_copy (in_state->caps);
if (in_state->codec_data)
state->codec_data = gst_buffer_copy_deep (in_state->codec_data);
return state;
}
static gboolean
gst_vaapi_decode_input_state_replace (GstVaapiDecode * decode,
const GstVideoCodecState * new_state)
{
if (decode->input_state) {
if (new_state) {
const GstCaps *curcaps = decode->input_state->caps;
/* If existing caps are equal of the new state, keep the
* existing state without renegotiating. */
if (gst_caps_is_strictly_equal (curcaps, new_state->caps)) {
GST_DEBUG ("Ignoring new caps %" GST_PTR_FORMAT
" since are equal to current ones", new_state->caps);
return FALSE;
}
}
gst_video_codec_state_unref (decode->input_state);
}
if (new_state)
decode->input_state = copy_video_codec_state (new_state);
else
decode->input_state = NULL;
return TRUE;
}
static inline gboolean
gst_vaapidecode_update_sink_caps (GstVaapiDecode * decode, GstCaps * caps)
{
GST_INFO_OBJECT (decode, "new sink caps = %" GST_PTR_FORMAT, caps);
gst_caps_replace (&decode->sinkpad_caps, caps);
return TRUE;
}
static gboolean
gst_vaapidecode_ensure_allowed_srcpad_caps (GstVaapiDecode * decode)
{
GstCaps *out_caps, *raw_caps;
if (decode->allowed_srcpad_caps)
return TRUE;
if (!GST_VAAPI_PLUGIN_BASE_DISPLAY (decode))
return FALSE;
/* Create VA caps */
out_caps = gst_caps_from_string (GST_VAAPI_MAKE_SURFACE_CAPS);
if (!out_caps) {
GST_WARNING_OBJECT (decode, "failed to create VA/GL source caps");
return FALSE;
}
#if (USE_GLX || USE_EGL)
if (!GST_VAAPI_PLUGIN_BASE_SRC_PAD_CAN_DMABUF (decode) &&
gst_vaapi_display_has_opengl (GST_VAAPI_PLUGIN_BASE_DISPLAY (decode))) {
out_caps = gst_caps_make_writable (out_caps);
gst_caps_append (out_caps,
gst_caps_from_string (GST_VAAPI_MAKE_GLTEXUPLOAD_CAPS));
}
#endif
out_caps = gst_caps_make_writable (out_caps);
gst_caps_append (out_caps, gst_caps_from_string (GST_VAAPI_MAKE_DMABUF_CAPS));
raw_caps = gst_vaapi_plugin_base_get_allowed_raw_caps
(GST_VAAPI_PLUGIN_BASE (decode));
if (!raw_caps) {
gst_caps_unref (out_caps);
GST_WARNING_OBJECT (decode, "failed to create raw sink caps");
return FALSE;
}
out_caps = gst_caps_make_writable (out_caps);
gst_caps_append (out_caps, gst_caps_copy (raw_caps));
decode->allowed_srcpad_caps = out_caps;
GST_INFO_OBJECT (decode, "allowed srcpad caps: %" GST_PTR_FORMAT,
decode->allowed_srcpad_caps);
return TRUE;
}
static GstCaps *
gst_vaapidecode_get_allowed_srcpad_caps (GstVaapiDecode * decode)
{
GstPad *const srcpad = GST_VIDEO_DECODER_SRC_PAD (decode);
if (gst_vaapidecode_ensure_allowed_srcpad_caps (decode))
return gst_caps_ref (decode->allowed_srcpad_caps);
return gst_pad_get_pad_template_caps (srcpad);
}
static gboolean
gst_vaapidecode_update_src_caps (GstVaapiDecode * decode)
{
GstVideoDecoder *const vdec = GST_VIDEO_DECODER (decode);
GstPad *const srcpad = GST_VIDEO_DECODER_SRC_PAD (vdec);
GstCaps *allowed;
GstVideoCodecState *state, *ref_state;
GstVaapiCapsFeature feature;
GstCapsFeatures *features;
GstCaps *allocation_caps;
GstVideoInfo *vi;
GstVideoFormat format;
GstClockTime latency;
gint fps_d, fps_n;
guint width, height;
const gchar *format_str, *feature_str;
if (!decode->input_state)
return FALSE;
ref_state = decode->input_state;
format = GST_VIDEO_INFO_FORMAT (&decode->decoded_info);
allowed = gst_vaapidecode_get_allowed_srcpad_caps (decode);
feature = gst_vaapi_find_preferred_caps_feature (srcpad, allowed, &format);
gst_caps_unref (allowed);
if (feature == GST_VAAPI_CAPS_FEATURE_NOT_NEGOTIATED)
return FALSE;
#if (!USE_GLX && !USE_EGL)
/* This is a very pathological situation. Should not happen. */
if (feature == GST_VAAPI_CAPS_FEATURE_GL_TEXTURE_UPLOAD_META)
return FALSE;
#endif
if ((feature == GST_VAAPI_CAPS_FEATURE_SYSTEM_MEMORY ||
feature == GST_VAAPI_CAPS_FEATURE_VAAPI_SURFACE)
&& format != GST_VIDEO_INFO_FORMAT (&decode->decoded_info)) {
GST_FIXME_OBJECT (decode, "validate if driver can convert from %s to %s",
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT
(&decode->decoded_info)), gst_video_format_to_string (format));
}
width = decode->display_width;
height = decode->display_height;
if (!width || !height) {
width = GST_VIDEO_INFO_WIDTH (&ref_state->info);
height = GST_VIDEO_INFO_HEIGHT (&ref_state->info);
}
state = gst_video_decoder_set_output_state (vdec, format, width, height,
ref_state);
if (!state)
return FALSE;
if (GST_VIDEO_INFO_WIDTH (&state->info) == 0
|| GST_VIDEO_INFO_HEIGHT (&state->info) == 0) {
gst_video_codec_state_unref (state);
return FALSE;
}
vi = &state->info;
state->caps = gst_video_info_to_caps (vi);
switch (feature) {
case GST_VAAPI_CAPS_FEATURE_GL_TEXTURE_UPLOAD_META:
case GST_VAAPI_CAPS_FEATURE_DMABUF:
case GST_VAAPI_CAPS_FEATURE_VAAPI_SURFACE:{
GstStructure *structure = gst_caps_get_structure (state->caps, 0);
/* Remove chroma-site and colorimetry from src caps,
* which is unnecessary on downstream if using VASurface
*/
gst_structure_remove_fields (structure, "chroma-site", "colorimetry",
NULL);
feature_str = gst_vaapi_caps_feature_to_string (feature);
features = gst_caps_features_new (feature_str, NULL);
gst_caps_set_features (state->caps, 0, features);
break;
}
default:
break;
}
/* Allocation query is different from pad's caps */
allocation_caps = NULL;
if (GST_VIDEO_INFO_WIDTH (&decode->decoded_info) != width
|| GST_VIDEO_INFO_HEIGHT (&decode->decoded_info) != height) {
allocation_caps = gst_caps_copy (state->caps);
format_str = gst_video_format_to_string (format);
gst_caps_set_simple (allocation_caps,
"width", G_TYPE_INT, GST_VIDEO_INFO_WIDTH (&decode->decoded_info),
"height", G_TYPE_INT, GST_VIDEO_INFO_HEIGHT (&decode->decoded_info),
"format", G_TYPE_STRING, format_str, NULL);
GST_INFO_OBJECT (decode, "new alloc caps = %" GST_PTR_FORMAT,
allocation_caps);
}
gst_caps_replace (&state->allocation_caps, allocation_caps);
if (allocation_caps)
gst_caps_unref (allocation_caps);
GST_INFO_OBJECT (decode, "new src caps = %" GST_PTR_FORMAT, state->caps);
gst_caps_replace (&decode->srcpad_caps, state->caps);
gst_video_codec_state_unref (state);
fps_n = GST_VIDEO_INFO_FPS_N (vi);
fps_d = GST_VIDEO_INFO_FPS_D (vi);
if (fps_n <= 0 || fps_d <= 0) {
GST_DEBUG_OBJECT (decode, "forcing 25/1 framerate for latency calculation");
fps_n = 25;
fps_d = 1;
}
/* For parsing/preparation purposes we'd need at least 1 frame
* latency in general, with perfectly known unit boundaries (NALU,
* AU), and up to 2 frames when we need to wait for the second frame
* start to determine the first frame is complete */
latency = gst_util_uint64_scale (2 * GST_SECOND, fps_d, fps_n);
gst_video_decoder_set_latency (vdec, latency, latency);
return TRUE;
}
static void
gst_vaapidecode_release (GstVaapiDecode * decode)
{
g_mutex_lock (&decode->surface_ready_mutex);
g_cond_signal (&decode->surface_ready);
g_mutex_unlock (&decode->surface_ready_mutex);
gst_object_unref (decode);
}
/* check whether the decoded surface size has changed */
static gboolean
is_surface_resolution_changed (GstVaapiDecode * decode,
GstVaapiSurface * surface)
{
GstVideoInfo *vinfo = &decode->decoded_info;
GstVideoFormat surface_format;
guint surface_width, surface_height;
g_return_val_if_fail (surface != NULL, FALSE);
gst_vaapi_surface_get_size (surface, &surface_width, &surface_height);
if (GST_VIDEO_INFO_WIDTH (vinfo) == surface_width
&& GST_VIDEO_INFO_HEIGHT (vinfo) == surface_height)
return FALSE;
/* doing gst_vaapi_surface_get_format() only if necessary since it
* execute vaDeriveImage in the background. This will usually get
* executed only once */
surface_format = GST_VIDEO_INFO_FORMAT (vinfo);
if (surface_format == GST_VIDEO_FORMAT_UNKNOWN) {
surface_format = gst_vaapi_surface_get_format (surface);
/* if the VA context delivers a currently unrecognized format
* (ICM3, e.g.), we can assume NV12 "safely" */
if (surface_format == GST_VIDEO_FORMAT_UNKNOWN
|| surface_format == GST_VIDEO_FORMAT_ENCODED)
surface_format = GST_VIDEO_FORMAT_NV12;
}
gst_video_info_set_format (vinfo, surface_format, surface_width,
surface_height);
return TRUE;
}
/* check whether display resolution changed */
static gboolean
is_display_resolution_changed (GstVaapiDecode * decode,
const GstVaapiRectangle * crop_rect)
{
GstVideoDecoder *const vdec = GST_VIDEO_DECODER (decode);
GstVideoCodecState *state;
guint display_width, display_height;
guint negotiated_width, negotiated_height;
display_width = GST_VIDEO_INFO_WIDTH (&decode->decoded_info);
display_height = GST_VIDEO_INFO_HEIGHT (&decode->decoded_info);
if (crop_rect) {
display_width = crop_rect->width;
display_height = crop_rect->height;
}
state = gst_video_decoder_get_output_state (vdec);
if (G_UNLIKELY (!state))
goto set_display_res;
negotiated_width = GST_VIDEO_INFO_WIDTH (&state->info);
negotiated_height = GST_VIDEO_INFO_HEIGHT (&state->info);
gst_video_codec_state_unref (state);
if ((display_width == negotiated_width && display_height == negotiated_height)
&& (decode->display_width == negotiated_width
&& decode->display_height == negotiated_height))
return FALSE;
set_display_res:
decode->display_width = display_width;
decode->display_height = display_height;
return TRUE;
}
static gboolean
gst_vaapidecode_negotiate (GstVaapiDecode * decode)
{
GstVideoDecoder *const vdec = GST_VIDEO_DECODER (decode);
GstVaapiPluginBase *const plugin = GST_VAAPI_PLUGIN_BASE (vdec);
GST_DEBUG_OBJECT (decode, "input codec state changed: renegotiating");
GST_VIDEO_DECODER_STREAM_LOCK (vdec);
if (!gst_vaapi_plugin_base_set_caps (plugin, decode->sinkpad_caps, NULL))
return FALSE;
if (!gst_vaapidecode_update_src_caps (decode))
return FALSE;
if (!gst_vaapi_plugin_base_set_caps (plugin, NULL, decode->srcpad_caps))
return FALSE;
GST_VIDEO_DECODER_STREAM_UNLOCK (vdec);
if (!gst_video_decoder_negotiate (vdec))
return FALSE;
return TRUE;
}
static gboolean
is_src_allocator_dmabuf (GstVaapiDecode * decode)
{
GstVaapiPluginBase *const plugin = GST_VAAPI_PLUGIN_BASE (decode);
if (!GST_VAAPI_PLUGIN_BASE_SRC_PAD_CAN_DMABUF (plugin))
return FALSE;
return gst_vaapi_is_dmabuf_allocator (plugin->srcpad_allocator);
}
static GstFlowReturn
gst_vaapidecode_push_decoded_frame (GstVideoDecoder * vdec,
GstVideoCodecFrame * out_frame)
{
GstVaapiDecode *const decode = GST_VAAPIDECODE (vdec);
GstVaapiSurfaceProxy *proxy;
GstVaapiSurface *surface;
GstFlowReturn ret;
const GstVaapiRectangle *crop_rect;
GstVaapiVideoMeta *meta;
GstBufferPoolAcquireParams *params = NULL;
GstVaapiVideoBufferPoolAcquireParams vaapi_params = { {0,}, };
guint flags, out_flags = 0;
gboolean alloc_renegotiate, caps_renegotiate;
if (!GST_VIDEO_CODEC_FRAME_IS_DECODE_ONLY (out_frame)) {
proxy = gst_video_codec_frame_get_user_data (out_frame);
surface = GST_VAAPI_SURFACE_PROXY_SURFACE (proxy);
crop_rect = gst_vaapi_surface_proxy_get_crop_rect (proxy);
/* in theory, we are not supposed to check the surface resolution
* change here since it should be advertised before from ligstvaapi.
* But there are issues with it especially for some vp9 streams where
* upstream element set un-cropped values in set_format() which make
* everything a mess. So better doing the explicit check here irrespective
* of what notification we get from upstream or libgstvaapi.Also, even if
* we received notification from libgstvaapi, the frame we are going to
* be pushed at this point might not have the notified resolution if there
* are queued frames in decoded picture buffer. */
alloc_renegotiate = is_surface_resolution_changed (decode, surface);
caps_renegotiate = is_display_resolution_changed (decode, crop_rect);
if (gst_pad_needs_reconfigure (GST_VIDEO_DECODER_SRC_PAD (vdec))
|| alloc_renegotiate || caps_renegotiate || decode->do_renego) {
g_atomic_int_set (&decode->do_renego, FALSE);
if (!gst_vaapidecode_negotiate (decode))
return GST_FLOW_ERROR;
}
gst_vaapi_surface_proxy_set_destroy_notify (proxy,
(GDestroyNotify) gst_vaapidecode_release, gst_object_ref (decode));
if (is_src_allocator_dmabuf (decode)) {
vaapi_params.proxy = gst_vaapi_surface_proxy_ref (proxy);
params = (GstBufferPoolAcquireParams *) & vaapi_params;
}
ret = gst_video_decoder_allocate_output_frame_with_params (vdec, out_frame,
params);
if (params)
gst_vaapi_surface_proxy_unref (vaapi_params.proxy);
if (ret != GST_FLOW_OK)
goto error_create_buffer;
/* if not dmabuf is negotiated set the vaapi video meta in the
* proxy */
if (!params) {
meta = gst_buffer_get_vaapi_video_meta (out_frame->output_buffer);
if (!meta)
goto error_get_meta;
gst_vaapi_video_meta_set_surface_proxy (meta, proxy);
}
flags = gst_vaapi_surface_proxy_get_flags (proxy);
if (flags & GST_VAAPI_SURFACE_PROXY_FLAG_CORRUPTED)
out_flags |= GST_BUFFER_FLAG_CORRUPTED;
if (flags & GST_VAAPI_SURFACE_PROXY_FLAG_INTERLACED) {
out_flags |= GST_VIDEO_BUFFER_FLAG_INTERLACED;
if (flags & GST_VAAPI_SURFACE_PROXY_FLAG_TFF)
out_flags |= GST_VIDEO_BUFFER_FLAG_TFF;
if (flags & GST_VAAPI_SURFACE_PROXY_FLAG_RFF)
out_flags |= GST_VIDEO_BUFFER_FLAG_RFF;
if (flags & GST_VAAPI_SURFACE_PROXY_FLAG_ONEFIELD)
out_flags |= GST_VIDEO_BUFFER_FLAG_ONEFIELD;
}
GST_BUFFER_FLAG_SET (out_frame->output_buffer, out_flags);
if (flags & GST_VAAPI_SURFACE_PROXY_FLAG_FFB) {
GST_BUFFER_FLAG_SET (out_frame->output_buffer,
GST_VIDEO_BUFFER_FLAG_FIRST_IN_BUNDLE);
}
#if (USE_GLX || USE_EGL)
if (decode->has_texture_upload_meta)
gst_buffer_ensure_texture_upload_meta (out_frame->output_buffer);
#endif
/* Generate a system allocated output buffer if downstream doesn't
* support GstVideoMeta */
if (GST_VAAPI_PLUGIN_BASE_COPY_OUTPUT_FRAME (vdec)) {
GstVaapiPluginBase *const plugin = GST_VAAPI_PLUGIN_BASE (vdec);
GstBuffer *sys_buf, *va_buf;
va_buf = out_frame->output_buffer;
sys_buf = gst_buffer_new_allocate (plugin->other_srcpad_allocator,
GST_VIDEO_INFO_SIZE (&plugin->srcpad_info),
&plugin->other_allocator_params);
if (!sys_buf)
goto error_no_sys_buffer;
if (!gst_vaapi_plugin_copy_va_buffer (plugin, va_buf, sys_buf)) {
gst_buffer_unref (sys_buf);
goto error_cannot_copy;
}
gst_buffer_replace (&out_frame->output_buffer, sys_buf);
gst_buffer_unref (sys_buf);
}
}
if (decode->in_segment.rate < 0.0
&& !GST_VAAPI_PLUGIN_BASE_COPY_OUTPUT_FRAME (vdec)
&& !GST_VIDEO_CODEC_FRAME_IS_SYNC_POINT (out_frame)) {
GST_TRACE_OBJECT (decode, "drop frame in reverse playback");
gst_video_decoder_release_frame (GST_VIDEO_DECODER (decode), out_frame);
return GST_FLOW_OK;
}
ret = gst_video_decoder_finish_frame (vdec, out_frame);
if (ret != GST_FLOW_OK)
goto error_commit_buffer;
return GST_FLOW_OK;
/* ERRORS */
error_create_buffer:
{
const GstVaapiID surface_id =
gst_vaapi_surface_get_id (GST_VAAPI_SURFACE_PROXY_SURFACE (proxy));
GST_ELEMENT_ERROR (vdec, STREAM, FAILED,
("Failed to create sink buffer"),
("video sink failed to create video buffer for proxy'ed "
"surface %" GST_VAAPI_ID_FORMAT, GST_VAAPI_ID_ARGS (surface_id)));
gst_video_decoder_drop_frame (vdec, out_frame);
return GST_FLOW_ERROR;
}
error_get_meta:
{
GST_ELEMENT_ERROR (vdec, STREAM, FAILED,
("Failed to get vaapi video meta attached to video buffer"),
("Failed to get vaapi video meta attached to video buffer"));
gst_video_decoder_drop_frame (vdec, out_frame);
return GST_FLOW_ERROR;
}
error_no_sys_buffer:
{
GST_ELEMENT_ERROR (vdec, STREAM, FAILED,
("Failed to create system allocated buffer"),
("Failed to create system allocated buffer"));
gst_video_decoder_drop_frame (vdec, out_frame);
return GST_FLOW_ERROR;
}
error_cannot_copy:
{
GST_ELEMENT_ERROR (vdec, STREAM, FAILED,
("Failed to copy system allocated buffer"),
("Failed to copy system allocated buffer"));
gst_video_decoder_drop_frame (vdec, out_frame);
return GST_FLOW_ERROR;
}
error_commit_buffer:
{
GST_INFO_OBJECT (decode, "downstream element rejected the frame (%s [%d])",
gst_flow_get_name (ret), ret);
return ret;
}
}
static GstFlowReturn
gst_vaapidecode_push_all_decoded_frames (GstVaapiDecode * decode)
{
GstVideoDecoder *const vdec = GST_VIDEO_DECODER (decode);
GstVaapiDecoderStatus status;
GstVideoCodecFrame *out_frame;
GstFlowReturn ret;
for (;;) {
status = gst_vaapi_decoder_get_frame (decode->decoder, &out_frame);
switch (status) {
case GST_VAAPI_DECODER_STATUS_SUCCESS:
/* GstVaapiDecode's queue adds an extra reference */
gst_video_codec_frame_unref (out_frame);
ret = gst_vaapidecode_push_decoded_frame (vdec, out_frame);
if (ret != GST_FLOW_OK)
return ret;
break;
case GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA:
return GST_FLOW_OK;
default:
GST_VIDEO_DECODER_ERROR (vdec, 1, STREAM, DECODE, ("Decoding failed"),
("Unknown decoding error"), ret);
return ret;
}
}
g_assert_not_reached ();
}
static GstFlowReturn
gst_vaapidecode_handle_frame (GstVideoDecoder * vdec,
GstVideoCodecFrame * frame)
{
GstVaapiDecode *const decode = GST_VAAPIDECODE (vdec);
GstVaapiDecoderStatus status;
GstFlowReturn ret;
if (!decode->input_state)
goto not_negotiated;
/* Decode current frame */
for (;;) {
status = gst_vaapi_decoder_decode (decode->decoder, frame);
if (status == GST_VAAPI_DECODER_STATUS_ERROR_NO_SURFACE) {
/* Make sure that there are no decoded frames waiting in the
output queue. */
ret = gst_vaapidecode_push_all_decoded_frames (decode);
if (ret != GST_FLOW_OK)
goto error_push_all_decoded_frames;
g_mutex_lock (&decode->surface_ready_mutex);
if (gst_vaapi_decoder_check_status (decode->decoder) ==
GST_VAAPI_DECODER_STATUS_ERROR_NO_SURFACE)
g_cond_wait (&decode->surface_ready, &decode->surface_ready_mutex);
g_mutex_unlock (&decode->surface_ready_mutex);
continue;
}
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
goto error_decode;
break;
}
/* Note that gst_vaapi_decoder_decode cannot return success without
completing the decode and pushing all decoded frames into the output
queue */
return gst_vaapidecode_push_all_decoded_frames (decode);
/* ERRORS */
error_push_all_decoded_frames:
{
GST_ERROR ("push loop error while decoding %d", ret);
gst_video_decoder_drop_frame (vdec, frame);
return ret;
}
error_decode:
{
GST_ERROR ("decode error %d", status);
switch (status) {
case GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_CODEC:
case GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_PROFILE:
case GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_CHROMA_FORMAT:
ret = GST_FLOW_NOT_SUPPORTED;
break;
default:
ret = GST_FLOW_OK;
GST_VIDEO_DECODER_ERROR (vdec, 1, STREAM, DECODE, ("Decoding error"),
("Decode error %d", status), ret);
GST_INFO ("requesting upstream a key unit");
gst_pad_push_event (GST_VIDEO_DECODER_SINK_PAD (decode),
gst_video_event_new_upstream_force_key_unit (GST_CLOCK_TIME_NONE,
FALSE, 0));
ret = GST_FLOW_OK;
break;
}
gst_video_decoder_drop_frame (vdec, frame);
return ret;
}
not_negotiated:
{
GST_ERROR_OBJECT (decode, "not negotiated");
ret = GST_FLOW_NOT_NEGOTIATED;
gst_video_decoder_drop_frame (vdec, frame);
return ret;
}
}
/* If there is something in GstVideoDecoder's output adapter, then
submit the frame for decoding */
static inline void
gst_vaapidecode_flush_output_adapter (GstVaapiDecode * decode)
{
if (decode->current_frame_size == 0)
return;
gst_video_decoder_have_frame (GST_VIDEO_DECODER (decode));
decode->current_frame_size = 0;
}
static GstFlowReturn
gst_vaapidecode_drain (GstVideoDecoder * vdec)
{
GstVaapiDecode *const decode = GST_VAAPIDECODE (vdec);
if (!decode->decoder)
return GST_FLOW_NOT_NEGOTIATED;
GST_LOG_OBJECT (decode, "drain");
gst_vaapidecode_flush_output_adapter (decode);
return gst_vaapidecode_push_all_decoded_frames (decode);
}
static GstFlowReturn
gst_vaapidecode_finish (GstVideoDecoder * vdec)
{
GstVaapiDecode *const decode = GST_VAAPIDECODE (vdec);
GstVaapiDecoderStatus status;
GstFlowReturn ret;
if (!decode->decoder)
return GST_FLOW_OK;
gst_vaapidecode_flush_output_adapter (decode);
status = gst_vaapi_decoder_flush (decode->decoder);
ret = gst_vaapidecode_push_all_decoded_frames (decode);
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
goto error_decoder_flush;
return ret;
/* ERRORS: */
error_decoder_flush:
{
GST_WARNING_OBJECT (decode, "failed to flush decoder (status %d)", status);
return GST_FLOW_ERROR;
}
}
static gboolean
gst_vaapidecode_decide_allocation (GstVideoDecoder * vdec, GstQuery * query)
{
GstVaapiDecode *const decode = GST_VAAPIDECODE (vdec);
GstCaps *caps = NULL;
gst_query_parse_allocation (query, &caps, NULL);
if (!caps)
goto error_no_caps;
decode->has_texture_upload_meta = FALSE;
#if (USE_GLX || USE_EGL)
decode->has_texture_upload_meta =
gst_query_find_allocation_meta (query,
GST_VIDEO_GL_TEXTURE_UPLOAD_META_API_TYPE, NULL) &&
gst_vaapi_caps_feature_contains (caps,
GST_VAAPI_CAPS_FEATURE_GL_TEXTURE_UPLOAD_META);
#endif
return gst_vaapi_plugin_base_decide_allocation (GST_VAAPI_PLUGIN_BASE (vdec),
query);
/* ERRORS */
error_no_caps:
{
GST_ERROR_OBJECT (decode, "no caps specified");
return FALSE;
}
}
static inline gboolean
gst_vaapidecode_ensure_display (GstVaapiDecode * decode)
{
return gst_vaapi_plugin_base_ensure_display (GST_VAAPI_PLUGIN_BASE (decode));
}
static inline guint
gst_vaapi_codec_from_caps (GstCaps * caps)
{
return gst_vaapi_profile_get_codec (gst_vaapi_profile_from_caps (caps));
}
static gboolean
gst_vaapidecode_create (GstVaapiDecode * decode, GstCaps * caps)
{
GstVaapiDisplay *dpy;
if (!gst_vaapidecode_ensure_display (decode))
return FALSE;
dpy = GST_VAAPI_PLUGIN_BASE_DISPLAY (decode);
switch (gst_vaapi_codec_from_caps (caps)) {
case GST_VAAPI_CODEC_MPEG2:
decode->decoder = gst_vaapi_decoder_mpeg2_new (dpy, caps);
break;
case GST_VAAPI_CODEC_MPEG4:
case GST_VAAPI_CODEC_H263:
decode->decoder = gst_vaapi_decoder_mpeg4_new (dpy, caps);
break;
case GST_VAAPI_CODEC_H264:
decode->decoder = gst_vaapi_decoder_h264_new (dpy, caps);
/* Set the stream buffer alignment for better optimizations */
if (decode->decoder && caps) {
GstVaapiDecodeH264Private *priv =
gst_vaapi_decode_h264_get_instance_private (decode);
GstStructure *const structure = gst_caps_get_structure (caps, 0);
const gchar *str = NULL;
if ((str = gst_structure_get_string (structure, "alignment"))) {
GstVaapiStreamAlignH264 alignment;
if (g_strcmp0 (str, "au") == 0)
alignment = GST_VAAPI_STREAM_ALIGN_H264_AU;
else if (g_strcmp0 (str, "nal") == 0)
alignment = GST_VAAPI_STREAM_ALIGN_H264_NALU;
else
alignment = GST_VAAPI_STREAM_ALIGN_H264_NONE;
gst_vaapi_decoder_h264_set_alignment (GST_VAAPI_DECODER_H264
(decode->decoder), alignment);
}
if (priv) {
gst_vaapi_decoder_h264_set_low_latency (GST_VAAPI_DECODER_H264
(decode->decoder), priv->is_low_latency);
gst_vaapi_decoder_h264_set_base_only (GST_VAAPI_DECODER_H264
(decode->decoder), priv->base_only);
}
}
break;
#if USE_H265_DECODER
case GST_VAAPI_CODEC_H265:
decode->decoder = gst_vaapi_decoder_h265_new (dpy, caps);
/* Set the stream buffer alignment for better optimizations */
if (decode->decoder && caps) {
GstStructure *const structure = gst_caps_get_structure (caps, 0);
const gchar *str = NULL;
if ((str = gst_structure_get_string (structure, "alignment"))) {
GstVaapiStreamAlignH265 alignment;
if (g_strcmp0 (str, "au") == 0)
alignment = GST_VAAPI_STREAM_ALIGN_H265_AU;
else if (g_strcmp0 (str, "nal") == 0)
alignment = GST_VAAPI_STREAM_ALIGN_H265_NALU;
else
alignment = GST_VAAPI_STREAM_ALIGN_H265_NONE;
gst_vaapi_decoder_h265_set_alignment (GST_VAAPI_DECODER_H265
(decode->decoder), alignment);
}
}
break;
#endif
case GST_VAAPI_CODEC_WMV3:
case GST_VAAPI_CODEC_VC1:
decode->decoder = gst_vaapi_decoder_vc1_new (dpy, caps);
break;
#if USE_JPEG_DECODER
case GST_VAAPI_CODEC_JPEG:
decode->decoder = gst_vaapi_decoder_jpeg_new (dpy, caps);
break;
#endif
#if USE_VP8_DECODER
case GST_VAAPI_CODEC_VP8:
decode->decoder = gst_vaapi_decoder_vp8_new (dpy, caps);
break;
#endif
#if USE_VP9_DECODER
case GST_VAAPI_CODEC_VP9:
decode->decoder = gst_vaapi_decoder_vp9_new (dpy, caps);
break;
#endif
default:
decode->decoder = NULL;
break;
}
if (!decode->decoder)
return FALSE;
gst_vaapi_decoder_set_codec_state_changed_func (decode->decoder,
gst_vaapi_decoder_state_changed, decode);
return TRUE;
}
static void
gst_vaapidecode_purge (GstVaapiDecode * decode)
{
GstVaapiDecoderStatus status;
if (!decode->decoder)
return;
status = gst_vaapi_decoder_flush (decode->decoder);
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
GST_INFO_OBJECT (decode, "failed to flush decoder (status %d)", status);
/* Purge all decoded frames as we don't need them (e.g. flush and close)
* Releasing the frames is important, otherwise the frames are not
* freed. */
do {
GstVideoCodecFrame *frame = NULL;
status =
gst_vaapi_decoder_get_frame_with_timeout (decode->decoder, &frame, 0);
if (frame) {
gst_video_decoder_release_frame (GST_VIDEO_DECODER (decode), frame);
gst_video_codec_frame_unref (frame);
}
} while (status == GST_VAAPI_DECODER_STATUS_SUCCESS);
}
static void
gst_vaapidecode_destroy (GstVaapiDecode * decode)
{
gst_vaapidecode_purge (decode);
gst_vaapi_decoder_replace (&decode->decoder, NULL);
gst_vaapidecode_release (gst_object_ref (decode));
}
static gboolean
gst_vaapidecode_reset (GstVaapiDecode * decode, GstCaps * caps,
gboolean force_reset)
{
/* Reset tracked frame size */
decode->current_frame_size = 0;
if (decode->decoder) {
if (!gst_caps_is_equal (caps, gst_vaapi_decoder_get_caps (decode->decoder))) {
if (gst_vaapi_decoder_update_caps (decode->decoder, caps)) {
g_atomic_int_set (&decode->do_renego, TRUE);
if (!force_reset)
return TRUE;
}
}
return (gst_vaapi_decoder_reset (decode->decoder) ==
GST_VAAPI_DECODER_STATUS_SUCCESS);
}
return gst_vaapidecode_create (decode, caps);
}
static void
gst_vaapidecode_finalize (GObject * object)
{
GstVaapiDecode *const decode = GST_VAAPIDECODE (object);
g_cond_clear (&decode->surface_ready);
g_mutex_clear (&decode->surface_ready_mutex);
gst_vaapi_plugin_base_finalize (GST_VAAPI_PLUGIN_BASE (object));
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gboolean
gst_vaapidecode_open (GstVideoDecoder * vdec)
{
GstVaapiDecode *const decode = GST_VAAPIDECODE (vdec);
if (!gst_vaapi_plugin_base_open (GST_VAAPI_PLUGIN_BASE (decode)))
return FALSE;
decode->display_width = 0;
decode->display_height = 0;
gst_video_info_init (&decode->decoded_info);
return TRUE;
}
static gboolean
gst_vaapidecode_close (GstVideoDecoder * vdec)
{
GstVaapiDecode *const decode = GST_VAAPIDECODE (vdec);
gst_vaapidecode_destroy (decode);
gst_caps_replace (&decode->allowed_srcpad_caps, NULL);
gst_caps_replace (&decode->allowed_sinkpad_caps, NULL);
gst_vaapi_plugin_base_close (GST_VAAPI_PLUGIN_BASE (decode));
return TRUE;
}
static gboolean
gst_vaapidecode_start (GstVideoDecoder * vdec)
{
GstVaapiDecode *const decode = GST_VAAPIDECODE (vdec);
GstVaapiDisplay *const old_display = GST_VAAPI_PLUGIN_BASE_DISPLAY (decode);
gboolean success;
/* Let GstVideoContext ask for a proper display to its neighbours */
/* Note: steal old display that may be allocated from get_caps()
so that to retain a reference to it, thus avoiding extra
initialization steps if we turn out to simply re-use the
existing (cached) VA display */
GST_VAAPI_PLUGIN_BASE_DISPLAY (decode) = NULL;
success =
gst_vaapi_plugin_base_ensure_display (GST_VAAPI_PLUGIN_BASE (decode));
if (old_display)
gst_object_unref (old_display);
/* Disable errors on decode errors */
gst_video_decoder_set_max_errors (vdec, -1);
return success;
}
static gboolean
gst_vaapidecode_stop (GstVideoDecoder * vdec)
{
GstVaapiDecode *const decode = GST_VAAPIDECODE (vdec);
gst_vaapidecode_purge (decode);
gst_vaapi_decode_input_state_replace (decode, NULL);
gst_vaapi_decoder_replace (&decode->decoder, NULL);
gst_caps_replace (&decode->sinkpad_caps, NULL);
gst_caps_replace (&decode->srcpad_caps, NULL);
return TRUE;
}
static gboolean
gst_vaapidecode_flush (GstVideoDecoder * vdec)
{
GstVaapiDecode *const decode = GST_VAAPIDECODE (vdec);
if (!decode->decoder)
return FALSE;
GST_LOG_OBJECT (vdec, "flushing");
gst_vaapidecode_purge (decode);
/* There could be issues if we avoid the reset() while doing
* seeking: we have to reset the internal state */
return gst_vaapidecode_reset (decode, decode->sinkpad_caps, TRUE);
}
static gboolean
gst_vaapidecode_set_format (GstVideoDecoder * vdec, GstVideoCodecState * state)
{
GstVaapiPluginBase *const plugin = GST_VAAPI_PLUGIN_BASE (vdec);
GstVaapiDecode *const decode = GST_VAAPIDECODE (vdec);
if (!gst_vaapi_decode_input_state_replace (decode, state))
return TRUE;
if (gst_vaapidecode_drain (vdec) == GST_FLOW_ERROR)
return FALSE;
if (!gst_vaapidecode_update_sink_caps (decode, state->caps))
return FALSE;
if (!gst_vaapi_plugin_base_set_caps (plugin, decode->sinkpad_caps, NULL))
return FALSE;
if (!gst_vaapidecode_reset (decode, decode->sinkpad_caps, FALSE))
return FALSE;
return TRUE;
}
static GstFlowReturn
gst_vaapidecode_parse_frame (GstVideoDecoder * vdec,
GstVideoCodecFrame * frame, GstAdapter * adapter, gboolean at_eos)
{
GstVaapiDecode *const decode = GST_VAAPIDECODE (vdec);
GstVaapiDecoderStatus status;
GstFlowReturn ret;
guint got_unit_size;
gboolean got_frame;
status = gst_vaapi_decoder_parse (decode->decoder, frame,
adapter, at_eos, &got_unit_size, &got_frame);
switch (status) {
case GST_VAAPI_DECODER_STATUS_SUCCESS:
if (got_unit_size > 0) {
gst_video_decoder_add_to_frame (vdec, got_unit_size);
decode->current_frame_size += got_unit_size;
}
if (got_frame) {
ret = gst_video_decoder_have_frame (vdec);
decode->current_frame_size = 0;
} else
ret = GST_VAAPI_DECODE_FLOW_PARSE_DATA;
break;
case GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA:
ret = GST_VIDEO_DECODER_FLOW_NEED_DATA;
break;
case GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_CODEC:
case GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_PROFILE:
case GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_CHROMA_FORMAT:
GST_WARNING ("parse error %d", status);
ret = GST_FLOW_NOT_SUPPORTED;
decode->current_frame_size = 0;
break;
default:
GST_WARNING ("parse error %d", status);
/* just keep parsing, the decoder should have flushed the broken unit */
ret = GST_VAAPI_DECODE_FLOW_PARSE_DATA;
decode->current_frame_size = 0;
GST_INFO ("requesting upstream a key unit");
gst_pad_push_event (GST_VIDEO_DECODER_SINK_PAD (decode),
gst_video_event_new_upstream_force_key_unit (GST_CLOCK_TIME_NONE,
FALSE, 0));
break;
}
return ret;
}
static GstFlowReturn
gst_vaapidecode_parse (GstVideoDecoder * vdec,
GstVideoCodecFrame * frame, GstAdapter * adapter, gboolean at_eos)
{
GstFlowReturn ret;
do {
ret = gst_vaapidecode_parse_frame (vdec, frame, adapter, at_eos);
} while (ret == GST_VAAPI_DECODE_FLOW_PARSE_DATA);
return ret;
}
static gboolean
is_mvc_profile (GstVaapiProfile profile)
{
return profile == GST_VAAPI_PROFILE_H264_MULTIVIEW_HIGH
|| profile == GST_VAAPI_PROFILE_H264_STEREO_HIGH;
}
static gboolean
is_svc_profile (GstVaapiProfile profile)
{
return profile == GST_VAAPI_PROFILE_H264_SCALABLE_BASELINE
|| profile == GST_VAAPI_PROFILE_H264_SCALABLE_HIGH;
}
static GstCaps *
add_h264_profile_in_caps (GstCaps * caps, const gchar * profile_name)
{
GstCaps *caps_new =
gst_caps_new_simple ("video/x-h264", "profile", G_TYPE_STRING,
profile_name, NULL);
return gst_caps_merge (caps_new, caps);
}
static gboolean
gst_vaapidecode_ensure_allowed_sinkpad_caps (GstVaapiDecode * decode)
{
GstCaps *caps, *allowed_sinkpad_caps;
GArray *profiles;
guint i;
gboolean base_only = FALSE;
gboolean have_high = FALSE;
gboolean have_mvc = FALSE;
gboolean have_svc = FALSE;
profiles =
gst_vaapi_display_get_decode_profiles (GST_VAAPI_PLUGIN_BASE_DISPLAY
(decode));
if (!profiles)
goto error_no_profiles;
allowed_sinkpad_caps = gst_caps_new_empty ();
if (!allowed_sinkpad_caps)
goto error_no_memory;
if (g_object_class_find_property (G_OBJECT_GET_CLASS (decode), "base-only")) {
g_object_get (decode, "base-only", &base_only, NULL);
}
for (i = 0; i < profiles->len; i++) {
const GstVaapiProfile profile =
g_array_index (profiles, GstVaapiProfile, i);
const gchar *media_type_name;
const gchar *profile_name;
GstStructure *structure;
media_type_name = gst_vaapi_profile_get_media_type_name (profile);
if (!media_type_name)
continue;
caps = gst_caps_from_string (media_type_name);
if (!caps)
continue;
structure = gst_caps_get_structure (caps, 0);
profile_name = gst_vaapi_profile_get_name (profile);
if (profile_name)
gst_structure_set (structure, "profile", G_TYPE_STRING,
profile_name, NULL);
allowed_sinkpad_caps = gst_caps_merge (allowed_sinkpad_caps, caps);
have_mvc |= is_mvc_profile (profile);
have_svc |= is_svc_profile (profile);
have_high |= profile == GST_VAAPI_PROFILE_H264_HIGH;
}
if (have_high) {
allowed_sinkpad_caps =
add_h264_profile_in_caps (allowed_sinkpad_caps, "progressive-high");
allowed_sinkpad_caps =
add_h264_profile_in_caps (allowed_sinkpad_caps, "constrained-high");
}
if (base_only && (!have_mvc || !have_svc) && have_high) {
if (!have_mvc) {
GST_DEBUG ("base_only: force adding MVC profiles in caps");
allowed_sinkpad_caps =
add_h264_profile_in_caps (allowed_sinkpad_caps, "multiview-high");
allowed_sinkpad_caps =
add_h264_profile_in_caps (allowed_sinkpad_caps, "stereo-high");
}
if (!have_svc) {
GST_DEBUG ("base_only: force adding SVC profiles in caps");
allowed_sinkpad_caps =
add_h264_profile_in_caps (allowed_sinkpad_caps,
"scalable-constrained-baseline");
allowed_sinkpad_caps =
add_h264_profile_in_caps (allowed_sinkpad_caps, "scalable-baseline");
allowed_sinkpad_caps =
add_h264_profile_in_caps (allowed_sinkpad_caps,
"scalable-high-intra");
allowed_sinkpad_caps =
add_h264_profile_in_caps (allowed_sinkpad_caps,
"scalable-constrained-high");
allowed_sinkpad_caps =
add_h264_profile_in_caps (allowed_sinkpad_caps, "scalable-high");
}
}
decode->allowed_sinkpad_caps = gst_caps_simplify (allowed_sinkpad_caps);
g_array_unref (profiles);
return TRUE;
/* ERRORS */
error_no_profiles:
{
GST_ERROR ("failed to retrieve VA decode profiles");
return FALSE;
}
error_no_memory:
{
GST_ERROR ("failed to allocate allowed-caps set");
g_array_unref (profiles);
return FALSE;
}
}
static GstCaps *
gst_vaapidecode_sink_getcaps (GstVideoDecoder * vdec, GstCaps * filter)
{
GstVaapiDecode *const decode = GST_VAAPIDECODE (vdec);
GstCaps *result;
if (decode->allowed_sinkpad_caps)
goto bail;
/* if we haven't a display yet, return our pad's template caps */
if (!GST_VAAPI_PLUGIN_BASE_DISPLAY (decode))
goto bail;
/* if the allowed caps calculation fails, return an empty caps, so
* the auto-plug can try other decoder */
if (!gst_vaapidecode_ensure_allowed_sinkpad_caps (decode))
return gst_caps_new_empty ();
bail:
result = gst_video_decoder_proxy_getcaps (vdec, decode->allowed_sinkpad_caps,
filter);
GST_DEBUG_OBJECT (decode, "Returning sink caps %" GST_PTR_FORMAT, result);
return result;
}
static gboolean
gst_vaapidecode_sink_query (GstVideoDecoder * vdec, GstQuery * query)
{
gboolean ret = TRUE;
GstElement *const element = GST_ELEMENT (vdec);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:{
ret = gst_vaapi_handle_context_query (element, query);
break;
}
default:{
ret = GST_VIDEO_DECODER_CLASS (parent_class)->sink_query (vdec, query);
break;
}
}
return ret;
}
static gboolean
gst_vaapidecode_src_query (GstVideoDecoder * vdec, GstQuery * query)
{
gboolean ret = TRUE;
GstElement *const element = GST_ELEMENT (vdec);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CAPS:{
GstCaps *caps, *filter = NULL;
GstPad *pad = GST_VIDEO_DECODER_SRC_PAD (vdec);
gst_query_parse_caps (query, &filter);
caps = gst_pad_get_pad_template_caps (pad);
if (filter) {
GstCaps *tmp = caps;
caps = gst_caps_intersect_full (filter, tmp, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (tmp);
}
gst_query_set_caps_result (query, caps);
gst_caps_unref (caps);
break;
}
case GST_QUERY_CONTEXT:{
ret = gst_vaapi_handle_context_query (element, query);
break;
}
default:{
ret = GST_VIDEO_DECODER_CLASS (parent_class)->src_query (vdec, query);
break;
}
}
return ret;
}
static gboolean
gst_vaapidecode_sink_event (GstVideoDecoder * vdec, GstEvent * event)
{
GstVaapiDecode *const decode = GST_VAAPIDECODE (vdec);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEGMENT:
{
/* Keep segment event to refer to rate so that
* vaapidecode can handle reverse playback
*/
gst_event_copy_segment (event, &decode->in_segment);
break;
}
default:
break;
}
return GST_VIDEO_DECODER_CLASS (parent_class)->sink_event (vdec, event);
}
static void
gst_vaapidecode_class_init (GstVaapiDecodeClass * klass)
{
GObjectClass *const object_class = G_OBJECT_CLASS (klass);
GstElementClass *const element_class = GST_ELEMENT_CLASS (klass);
GstVideoDecoderClass *const vdec_class = GST_VIDEO_DECODER_CLASS (klass);
GstPadTemplate *pad_template;
GstVaapiDecoderMap *map;
gchar *name, *longname, *description;
GstCaps *caps;
GST_DEBUG_CATEGORY_INIT (gst_debug_vaapidecode,
GST_PLUGIN_NAME, 0, GST_PLUGIN_DESC);
parent_class = g_type_class_peek_parent (klass);
gst_vaapi_plugin_base_class_init (GST_VAAPI_PLUGIN_BASE_CLASS (klass));
object_class->finalize = gst_vaapidecode_finalize;
vdec_class->open = GST_DEBUG_FUNCPTR (gst_vaapidecode_open);
vdec_class->close = GST_DEBUG_FUNCPTR (gst_vaapidecode_close);
vdec_class->start = GST_DEBUG_FUNCPTR (gst_vaapidecode_start);
vdec_class->stop = GST_DEBUG_FUNCPTR (gst_vaapidecode_stop);
vdec_class->set_format = GST_DEBUG_FUNCPTR (gst_vaapidecode_set_format);
vdec_class->flush = GST_DEBUG_FUNCPTR (gst_vaapidecode_flush);
vdec_class->parse = GST_DEBUG_FUNCPTR (gst_vaapidecode_parse);
vdec_class->handle_frame = GST_DEBUG_FUNCPTR (gst_vaapidecode_handle_frame);
vdec_class->finish = GST_DEBUG_FUNCPTR (gst_vaapidecode_finish);
vdec_class->drain = GST_DEBUG_FUNCPTR (gst_vaapidecode_drain);
vdec_class->decide_allocation =
GST_DEBUG_FUNCPTR (gst_vaapidecode_decide_allocation);
vdec_class->src_query = GST_DEBUG_FUNCPTR (gst_vaapidecode_src_query);
vdec_class->sink_query = GST_DEBUG_FUNCPTR (gst_vaapidecode_sink_query);
vdec_class->getcaps = GST_DEBUG_FUNCPTR (gst_vaapidecode_sink_getcaps);
vdec_class->sink_event = GST_DEBUG_FUNCPTR (gst_vaapidecode_sink_event);
map = (GstVaapiDecoderMap *) g_type_get_qdata (G_OBJECT_CLASS_TYPE (klass),
GST_VAAPI_DECODE_PARAMS_QDATA);
if (map->codec) {
name = g_ascii_strup (map->name, -1);
longname = g_strdup_printf ("VA-API %s decoder", name);
description = g_strdup_printf ("A VA-API based %s video decoder", name);
g_free (name);
} else {
longname = g_strdup ("VA-API decoder");
description = g_strdup (GST_PLUGIN_DESC);
}
element_class->set_context = gst_vaapi_base_set_context;
gst_element_class_set_static_metadata (element_class, longname,
"Codec/Decoder/Video", description,
"Gwenole Beauchesne <gwenole.beauchesne@intel.com>, "
"Halley Zhao <halley.zhao@intel.com>, "
"Sreerenj Balachandran <sreerenj.balachandran@intel.com>, "
"Wind Yuan <feng.yuan@intel.com>");
g_free (longname);
g_free (description);
if (map->install_properties)
map->install_properties (object_class);
/* sink pad */
caps = gst_caps_from_string (map->caps_str);
pad_template = gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
caps);
gst_caps_unref (caps);
gst_element_class_add_pad_template (element_class, pad_template);
/* src pad */
gst_element_class_add_static_pad_template (element_class,
&gst_vaapidecode_src_factory);
}
static void
gst_vaapidecode_init (GstVaapiDecode * decode)
{
GstVideoDecoder *const vdec = GST_VIDEO_DECODER (decode);
gst_vaapi_plugin_base_init (GST_VAAPI_PLUGIN_BASE (decode), GST_CAT_DEFAULT);
g_mutex_init (&decode->surface_ready_mutex);
g_cond_init (&decode->surface_ready);
gst_video_decoder_set_packetized (vdec, FALSE);
}
gboolean
gst_vaapidecode_register (GstPlugin * plugin, GArray * decoders)
{
gboolean ret = FALSE;
guint i, codec, rank;
gchar *type_name, *element_name;
const gchar *name;
GType type;
GTypeInfo typeinfo = {
sizeof (GstVaapiDecodeClass),
NULL,
NULL,
(GClassInitFunc) gst_vaapidecode_class_init,
NULL,
NULL,
sizeof (GstVaapiDecode),
0,
(GInstanceInitFunc) gst_vaapidecode_init,
};
for (i = 0; i < G_N_ELEMENTS (vaapi_decode_map); i++) {
codec = vaapi_decode_map[i].codec;
rank = vaapi_decode_map[i].rank;
name = vaapi_decode_map[i].name;
if (codec && !gst_vaapi_codecs_has_codec (decoders, codec))
continue;
if (codec) {
type_name = g_strdup_printf ("GstVaapiDecode_%s", name);
element_name = g_strdup_printf ("vaapi%sdec", name);
} else {
type_name = g_strdup ("GstVaapiDecode");
element_name = g_strdup_printf ("vaapidecode");
}
type = g_type_from_name (type_name);
if (!type) {
/* create the gtype now */
type = g_type_register_static (GST_TYPE_VIDEO_DECODER, type_name,
&typeinfo, 0);
gst_vaapi_plugin_base_init_interfaces (type);
g_type_set_qdata (type, GST_VAAPI_DECODE_PARAMS_QDATA,
(gpointer) & vaapi_decode_map[i]);
}
/* Register GstVaapiDecode as GObject type, but not in GStreamer, so
* vaapidecodebin can use it internally, but no exposed as a plugin
* feature */
if (codec)
ret |= gst_element_register (plugin, element_name, rank, type);
g_free (element_name);
g_free (type_name);
}
return ret;
}
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