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gstreamer/gst/vaapi/gstvaapidecode.c
Víctor Manuel Jáquez Leal ec9a2a4b4e vaapidecode: don't error if can't push buffers downtream 
When the code path goes to push buffers downstream when no surface
available in decoder context, and it fails the code bails out with a
fatal error.

That behavior is wrong, since it shouldn't be fatal. The use case is
when the video stream is disabled.

This patch just ignores the errors in this situation and demotes the
level of a log message.
2019-07-26 12:40:01 +02:00

1569 lines
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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")
GST_CAPS_CODEC("video/x-h265")
GST_CAPS_CODEC("video/x-wmv")
GST_CAPS_CODEC("video/x-vp8")
GST_CAPS_CODEC("video/x-vp9")
;
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, YUY2, UYVY, Y210, P010_10LE, AYUV, Y410, Y444 }") ";"
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[] = {
{GST_VAAPI_CODEC_JPEG, GST_RANK_MARGINAL, "jpeg", "image/jpeg", NULL},
{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},
{GST_VAAPI_CODEC_VP8, GST_RANK_PRIMARY, "vp8", "video/x-vp8", NULL},
{GST_VAAPI_CODEC_VP9, GST_RANK_PRIMARY, "vp9", "video/x-vp9", NULL},
{GST_VAAPI_CODEC_H265, GST_RANK_PRIMARY, "h265", "video/x-h265", NULL},
{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_srcpad_raw_caps
(GST_VAAPI_PLUGIN_BASE (decode),
GST_VIDEO_INFO_FORMAT (&decode->decoded_info));
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 one according surface chroma
* type. If fail, then use NV12 "safely" */
if (surface_format == GST_VIDEO_FORMAT_UNKNOWN
|| surface_format == GST_VIDEO_FORMAT_ENCODED)
surface_format =
gst_vaapi_video_format_from_chroma (gst_vaapi_surface_get_chroma_type
(surface));
if (surface_format == GST_VIDEO_FORMAT_UNKNOWN)
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_LOG_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;
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. */
gst_vaapidecode_push_all_decoded_frames (decode);
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_decode:
{
GstFlowReturn ret = GST_FLOW_OK;
GST_WARNING_OBJECT (decode, "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:
GST_VIDEO_DECODER_ERROR (vdec, 1, STREAM, DECODE, ("Decoding error"),
("Decode error %d", status), ret);
GST_INFO_OBJECT (decode, "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;
}
gst_video_decoder_drop_frame (vdec, frame);
return ret;
}
not_negotiated:
{
GST_ERROR_OBJECT (decode, "not negotiated");
gst_video_decoder_drop_frame (vdec, frame);
return GST_FLOW_NOT_NEGOTIATED;
}
}
/* 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;
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;
case GST_VAAPI_CODEC_WMV3:
case GST_VAAPI_CODEC_VC1:
decode->decoder = gst_vaapi_decoder_vc1_new (dpy, caps);
break;
case GST_VAAPI_CODEC_JPEG:
decode->decoder = gst_vaapi_decoder_jpeg_new (dpy, caps);
break;
case GST_VAAPI_CODEC_VP8:
decode->decoder = gst_vaapi_decoder_vp8_new (dpy, caps);
break;
case GST_VAAPI_CODEC_VP9:
decode->decoder = gst_vaapi_decoder_vp9_new (dpy, caps);
break;
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/Hardware", 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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