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gstreamer/subprojects/gst-plugins-bad/sys/androidmedia/gstamcvideodec.c

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/*
* Initially based on gst-omx/omx/gstomxvideodec.c
*
* Copyright (C) 2011, Hewlett-Packard Development Company, L.P.
* Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>, Collabora Ltd.
*
* Copyright (C) 2012, Collabora Ltd.
* Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* Copyright (C) 2012, Rafaël Carré <funman@videolanorg>
*
* Copyright (C) 2015, Sebastian Dröge <sebastian@centricular.com>
*
* Copyright (C) 2014-2015, Collabora Ltd.
* Author: Matthieu Bouron <matthieu.bouron@gcollabora.com>
*
* Copyright (C) 2015, Edward Hervey
* Author: Edward Hervey <bilboed@gmail.com>
*
* Copyright (C) 2015, Matthew Waters <matthew@centricular.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
* version 2.1 of the License.
*
* 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
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/gl/gl.h>
#include <gst/video/gstvideometa.h>
#include <gst/video/gstvideoaffinetransformationmeta.h>
#include <gst/video/gstvideopool.h>
#include <string.h>
#ifdef HAVE_ORC
#include <orc/orc.h>
#else
#define orc_memcpy memcpy
#endif
#include "gstamcvideodec.h"
#include "gstamc-constants.h"
GST_DEBUG_CATEGORY_STATIC (gst_amc_video_dec_debug_category);
#define GST_CAT_DEFAULT gst_amc_video_dec_debug_category
#define GST_VIDEO_DECODER_ERROR_FROM_ERROR(el, err) G_STMT_START { \
gchar *__dbg = g_strdup (err->message); \
GstVideoDecoder *__dec = GST_VIDEO_DECODER (el); \
GST_WARNING_OBJECT (el, "error: %s", __dbg); \
_gst_video_decoder_error (__dec, 1, \
err->domain, err->code, \
NULL, __dbg, __FILE__, GST_FUNCTION, __LINE__); \
g_clear_error (&err); \
} G_STMT_END
typedef struct _BufferIdentification BufferIdentification;
struct _BufferIdentification
{
guint64 timestamp;
};
struct gl_sync_result
{
gint refcount;
gint64 frame_available_ts;
gboolean updated; /* only every call update_tex_image once */
gboolean released; /* only every call release_output_buffer once */
gboolean rendered; /* whether the release resulted in a render */
};
static struct gl_sync_result *
_gl_sync_result_ref (struct gl_sync_result *result)
{
g_assert (result != NULL);
g_atomic_int_inc (&result->refcount);
GST_TRACE ("gl_sync result %p ref", result);
return result;
}
static void
_gl_sync_result_unref (struct gl_sync_result *result)
{
g_assert (result != NULL);
GST_TRACE ("gl_sync result %p unref", result);
if (g_atomic_int_dec_and_test (&result->refcount)) {
GST_TRACE ("freeing gl_sync result %p", result);
g_free (result);
}
}
struct gl_sync
{
gint refcount;
GstAmcVideoDec *sink; /* back reference for statistics, lock, cond, etc */
gint buffer_idx; /* idx of the AMC buffer we should render */
GstBuffer *buffer; /* back reference to the buffer */
GstGLMemory *oes_mem; /* where amc is rendering into. The same for every gl_sync */
GstAmcSurfaceTexture *surface; /* java wrapper for where amc is rendering into */
guint gl_frame_no; /* effectively the frame id */
gint64 released_ts; /* microseconds from g_get_monotonic_time() */
struct gl_sync_result *result;
};
static struct gl_sync *
_gl_sync_ref (struct gl_sync *sync)
{
g_assert (sync != NULL);
g_atomic_int_inc (&sync->refcount);
GST_TRACE ("gl_sync %p ref", sync);
return sync;
}
static void
_gl_sync_unref (struct gl_sync *sync)
{
g_assert (sync != NULL);
GST_TRACE ("gl_sync %p unref", sync);
if (g_atomic_int_dec_and_test (&sync->refcount)) {
GST_TRACE ("freeing gl_sync %p", sync);
_gl_sync_result_unref (sync->result);
g_object_unref (sync->sink);
g_object_unref (sync->surface);
gst_memory_unref ((GstMemory *) sync->oes_mem);
g_free (sync);
}
}
static gint
_queue_compare_gl_sync (gconstpointer a, gconstpointer b)
{
const struct gl_sync *sync = a;
guint frame = GPOINTER_TO_INT (b);
return sync->gl_frame_no - frame;
}
static GList *
_find_gl_sync_for_frame (GstAmcVideoDec * dec, guint frame)
{
return g_queue_find_custom (dec->gl_queue, GINT_TO_POINTER (frame),
(GCompareFunc) _queue_compare_gl_sync);
}
static void
_attach_mem_to_context (GstGLContext * context, GstAmcVideoDec * self)
{
GST_TRACE_OBJECT (self, "attaching texture %p id %u to current context",
self->surface, self->oes_mem->tex_id);
if (!gst_amc_surface_texture_attach_to_gl_context (self->surface,
self->oes_mem->tex_id, &self->gl_error)) {
GST_ERROR_OBJECT (self, "Failed to attach texture to the GL context");
GST_ELEMENT_ERROR_FROM_ERROR (self, self->gl_error);
} else {
self->gl_mem_attached = TRUE;
}
}
static void
_dettach_mem_from_context (GstGLContext * context, GstAmcVideoDec * self)
{
if (self->surface) {
guint tex_id = self->oes_mem ? self->oes_mem->tex_id : 0;
GST_TRACE_OBJECT (self, "detaching texture %p id %u from current context",
self->surface, tex_id);
if (!gst_amc_surface_texture_detach_from_gl_context (self->surface,
&self->gl_error)) {
GST_ERROR_OBJECT (self, "Failed to attach texture to the GL context");
GST_ELEMENT_ERROR_FROM_ERROR (self, self->gl_error);
}
}
self->gl_mem_attached = FALSE;
}
static BufferIdentification *
buffer_identification_new (GstClockTime timestamp)
{
BufferIdentification *id = g_slice_new (BufferIdentification);
id->timestamp = timestamp;
return id;
}
static void
buffer_identification_free (BufferIdentification * id)
{
g_slice_free (BufferIdentification, id);
}
/* prototypes */
static void gst_amc_video_dec_finalize (GObject * object);
static GstStateChangeReturn
gst_amc_video_dec_change_state (GstElement * element,
GstStateChange transition);
static void gst_amc_video_dec_set_context (GstElement * element,
GstContext * context);
static gboolean gst_amc_video_dec_open (GstVideoDecoder * decoder);
static gboolean gst_amc_video_dec_close (GstVideoDecoder * decoder);
static gboolean gst_amc_video_dec_start (GstVideoDecoder * decoder);
static gboolean gst_amc_video_dec_stop (GstVideoDecoder * decoder);
static gboolean gst_amc_video_dec_set_format (GstVideoDecoder * decoder,
GstVideoCodecState * state);
static gboolean gst_amc_video_dec_flush (GstVideoDecoder * decoder);
static GstFlowReturn gst_amc_video_dec_handle_frame (GstVideoDecoder * decoder,
GstVideoCodecFrame * frame);
static GstFlowReturn gst_amc_video_dec_finish (GstVideoDecoder * decoder);
static gboolean gst_amc_video_dec_decide_allocation (GstVideoDecoder * bdec,
GstQuery * query);
static gboolean gst_amc_video_dec_src_query (GstVideoDecoder * bdec,
GstQuery * query);
static GstFlowReturn gst_amc_video_dec_drain (GstAmcVideoDec * self);
static gboolean gst_amc_video_dec_check_codec_config (GstAmcVideoDec * self);
static void
gst_amc_video_dec_on_frame_available (GstAmcSurfaceTexture * texture,
gpointer user_data);
enum
{
PROP_0
};
/* class initialization */
static void gst_amc_video_dec_class_init (GstAmcVideoDecClass * klass);
static void gst_amc_video_dec_init (GstAmcVideoDec * self);
static void gst_amc_video_dec_base_init (gpointer g_class);
static GstVideoDecoderClass *parent_class = NULL;
GType
gst_amc_video_dec_get_type (void)
{
static gsize type = 0;
if (g_once_init_enter (&type)) {
GType _type;
static const GTypeInfo info = {
sizeof (GstAmcVideoDecClass),
gst_amc_video_dec_base_init,
NULL,
(GClassInitFunc) gst_amc_video_dec_class_init,
NULL,
NULL,
sizeof (GstAmcVideoDec),
0,
(GInstanceInitFunc) gst_amc_video_dec_init,
NULL
};
_type = g_type_register_static (GST_TYPE_VIDEO_DECODER, "GstAmcVideoDec",
&info, 0);
GST_DEBUG_CATEGORY_INIT (gst_amc_video_dec_debug_category, "amcvideodec", 0,
"Android MediaCodec video decoder");
g_once_init_leave (&type, _type);
}
return type;
}
static const gchar *
caps_to_mime (GstCaps * caps)
{
GstStructure *s;
const gchar *name;
s = gst_caps_get_structure (caps, 0);
if (!s)
return NULL;
name = gst_structure_get_name (s);
if (strcmp (name, "video/mpeg") == 0) {
gint mpegversion;
if (!gst_structure_get_int (s, "mpegversion", &mpegversion))
return NULL;
if (mpegversion == 4)
return "video/mp4v-es";
else if (mpegversion == 1 || mpegversion == 2)
return "video/mpeg2";
} else if (strcmp (name, "video/x-h263") == 0) {
return "video/3gpp";
} else if (strcmp (name, "video/x-h264") == 0) {
return "video/avc";
} else if (strcmp (name, "video/x-h265") == 0) {
return "video/hevc";
} else if (strcmp (name, "video/x-vp8") == 0) {
return "video/x-vnd.on2.vp8";
} else if (strcmp (name, "video/x-vp9") == 0) {
return "video/x-vnd.on2.vp9";
} else if (strcmp (name, "video/x-av1") == 0) {
return "video/av01";
} else if (strcmp (name, "video/x-divx") == 0) {
return "video/mp4v-es";
}
return NULL;
}
static void
gst_amc_video_dec_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
GstAmcVideoDecClass *amcvideodec_class = GST_AMC_VIDEO_DEC_CLASS (g_class);
const GstAmcCodecInfo *codec_info;
GstPadTemplate *templ;
GstCaps *sink_caps, *src_caps, *all_src_caps;
gchar *longname;
codec_info =
g_type_get_qdata (G_TYPE_FROM_CLASS (g_class), gst_amc_codec_info_quark);
/* This happens for the base class and abstract subclasses */
if (!codec_info)
return;
amcvideodec_class->codec_info = codec_info;
gst_amc_codec_info_to_caps (codec_info, &sink_caps, &src_caps);
all_src_caps =
gst_caps_from_string ("video/x-raw(" GST_CAPS_FEATURE_MEMORY_GL_MEMORY
"), format = (string) RGBA, texture-target = (string) external-oes");
if (codec_info->gl_output_only) {
gst_caps_unref (src_caps);
} else {
gst_caps_append (all_src_caps, src_caps);
}
/* Add pad templates */
templ =
gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, sink_caps);
gst_element_class_add_pad_template (element_class, templ);
gst_caps_unref (sink_caps);
templ =
gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, all_src_caps);
gst_element_class_add_pad_template (element_class, templ);
gst_caps_unref (all_src_caps);
longname = g_strdup_printf ("Android MediaCodec %s", codec_info->name);
gst_element_class_set_metadata (element_class,
codec_info->name,
"Codec/Decoder/Video/Hardware",
longname, "Sebastian Dröge <sebastian.droege@collabora.co.uk>");
g_free (longname);
}
static void
gst_amc_video_dec_class_init (GstAmcVideoDecClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstVideoDecoderClass *videodec_class = GST_VIDEO_DECODER_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
gobject_class->finalize = gst_amc_video_dec_finalize;
element_class->change_state =
GST_DEBUG_FUNCPTR (gst_amc_video_dec_change_state);
element_class->set_context =
GST_DEBUG_FUNCPTR (gst_amc_video_dec_set_context);
videodec_class->start = GST_DEBUG_FUNCPTR (gst_amc_video_dec_start);
videodec_class->stop = GST_DEBUG_FUNCPTR (gst_amc_video_dec_stop);
videodec_class->open = GST_DEBUG_FUNCPTR (gst_amc_video_dec_open);
videodec_class->close = GST_DEBUG_FUNCPTR (gst_amc_video_dec_close);
videodec_class->flush = GST_DEBUG_FUNCPTR (gst_amc_video_dec_flush);
videodec_class->set_format = GST_DEBUG_FUNCPTR (gst_amc_video_dec_set_format);
videodec_class->handle_frame =
GST_DEBUG_FUNCPTR (gst_amc_video_dec_handle_frame);
videodec_class->finish = GST_DEBUG_FUNCPTR (gst_amc_video_dec_finish);
videodec_class->decide_allocation =
GST_DEBUG_FUNCPTR (gst_amc_video_dec_decide_allocation);
videodec_class->src_query = GST_DEBUG_FUNCPTR (gst_amc_video_dec_src_query);
}
static void
gst_amc_video_dec_init (GstAmcVideoDec * self)
{
gst_video_decoder_set_packetized (GST_VIDEO_DECODER (self), TRUE);
gst_video_decoder_set_needs_format (GST_VIDEO_DECODER (self), TRUE);
g_mutex_init (&self->drain_lock);
g_cond_init (&self->drain_cond);
g_mutex_init (&self->gl_lock);
g_cond_init (&self->gl_cond);
self->gl_queue = g_queue_new ();
}
static gboolean
gst_amc_video_dec_open (GstVideoDecoder * decoder)
{
GstAmcVideoDec *self = GST_AMC_VIDEO_DEC (decoder);
GstAmcVideoDecClass *klass = GST_AMC_VIDEO_DEC_GET_CLASS (self);
GError *err = NULL;
GST_DEBUG_OBJECT (self, "Opening decoder");
self->codec = gst_amc_codec_new (klass->codec_info->name, FALSE, &err);
if (!self->codec) {
GST_ELEMENT_ERROR_FROM_ERROR (self, err);
return FALSE;
}
self->codec_config = AMC_CODEC_CONFIG_NONE;
self->started = FALSE;
self->flushing = TRUE;
GST_DEBUG_OBJECT (self, "Opened decoder");
return TRUE;
}
static gboolean
gst_amc_video_dec_close (GstVideoDecoder * decoder)
{
GstAmcVideoDec *self = GST_AMC_VIDEO_DEC (decoder);
GST_DEBUG_OBJECT (self, "Closing decoder");
if (self->downstream_supports_gl
&& self->codec_config == AMC_CODEC_CONFIG_WITH_SURFACE) {
g_mutex_lock (&self->gl_lock);
GST_INFO_OBJECT (self, "shutting down gl queue pushed %u ready %u "
"released %u", self->gl_pushed_frame_count, self->gl_ready_frame_count,
self->gl_released_frame_count);
g_queue_free_full (self->gl_queue, (GDestroyNotify) _gl_sync_unref);
self->gl_queue = g_queue_new ();
g_mutex_unlock (&self->gl_lock);
if (self->gl_mem_attached)
gst_gl_context_thread_add (self->gl_context,
(GstGLContextThreadFunc) _dettach_mem_from_context, self);
}
self->gl_pushed_frame_count = 0;
self->gl_ready_frame_count = 0;
self->gl_released_frame_count = 0;
self->gl_last_rendered_frame = 0;
if (self->surface) {
GError *err = NULL;
if (!gst_amc_surface_texture_set_on_frame_available_callback (self->surface,
NULL, NULL, &err)) {
GST_ERROR_OBJECT (self,
"Failed to unset back pointer on the listener. "
"crashes/hangs may ensue: %s", err ? err->message : "Unknown");
GST_ELEMENT_ERROR_FROM_ERROR (self, err);
}
gst_object_unref (self->surface);
self->surface = NULL;
}
if (self->codec) {
GError *err = NULL;
gst_amc_codec_release (self->codec, &err);
if (err)
GST_ELEMENT_WARNING_FROM_ERROR (self, err);
gst_amc_codec_free (self->codec);
}
self->started = FALSE;
self->flushing = TRUE;
self->downstream_supports_gl = FALSE;
self->codec = NULL;
self->codec_config = AMC_CODEC_CONFIG_NONE;
GST_DEBUG_OBJECT (self, "Freeing GL context: %" GST_PTR_FORMAT,
self->gl_context);
if (self->gl_context) {
gst_object_unref (self->gl_context);
self->gl_context = NULL;
}
if (self->oes_mem) {
gst_memory_unref ((GstMemory *) self->oes_mem);
self->oes_mem = NULL;
}
if (self->gl_display) {
gst_object_unref (self->gl_display);
self->gl_display = NULL;
}
if (self->other_gl_context) {
gst_object_unref (self->other_gl_context);
self->other_gl_context = NULL;
}
GST_DEBUG_OBJECT (self, "Closed decoder");
return TRUE;
}
static void
gst_amc_video_dec_finalize (GObject * object)
{
GstAmcVideoDec *self = GST_AMC_VIDEO_DEC (object);
g_mutex_clear (&self->drain_lock);
g_cond_clear (&self->drain_cond);
g_mutex_clear (&self->gl_lock);
g_cond_clear (&self->gl_cond);
if (self->gl_queue) {
g_queue_free_full (self->gl_queue, (GDestroyNotify) _gl_sync_unref);
self->gl_queue = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_amc_video_dec_set_context (GstElement * element, GstContext * context)
{
GstAmcVideoDec *self = GST_AMC_VIDEO_DEC (element);
gst_gl_handle_set_context (element, context, &self->gl_display,
&self->other_gl_context);
GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
}
static GstStateChangeReturn
gst_amc_video_dec_change_state (GstElement * element, GstStateChange transition)
{
GstAmcVideoDec *self;
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GError *err = NULL;
g_return_val_if_fail (GST_IS_AMC_VIDEO_DEC (element),
GST_STATE_CHANGE_FAILURE);
self = GST_AMC_VIDEO_DEC (element);
GST_DEBUG_OBJECT (element, "changing state: %s => %s",
gst_element_state_get_name (GST_STATE_TRANSITION_CURRENT (transition)),
gst_element_state_get_name (GST_STATE_TRANSITION_NEXT (transition)));
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
self->downstream_flow_ret = GST_FLOW_OK;
self->draining = FALSE;
self->started = FALSE;
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
self->flushing = TRUE;
if (self->started) {
gst_amc_codec_flush (self->codec, &err);
if (err)
GST_ELEMENT_WARNING_FROM_ERROR (self, err);
}
g_mutex_lock (&self->drain_lock);
self->draining = FALSE;
g_cond_broadcast (&self->drain_cond);
g_mutex_unlock (&self->drain_lock);
break;
default:
break;
}
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
self->downstream_flow_ret = GST_FLOW_FLUSHING;
self->started = FALSE;
break;
default:
break;
}
return ret;
}
#define MAX_FRAME_DIST_TIME (5 * GST_SECOND)
#define MAX_FRAME_DIST_FRAMES (100)
static GstVideoCodecFrame *
_find_nearest_frame (GstAmcVideoDec * self, GstClockTime reference_timestamp)
{
GList *l, *best_l = NULL;
GList *finish_frames = NULL;
GstVideoCodecFrame *best = NULL;
guint64 best_timestamp = 0;
guint64 best_diff = G_MAXUINT64;
BufferIdentification *best_id = NULL;
GList *frames;
frames = gst_video_decoder_get_frames (GST_VIDEO_DECODER (self));
for (l = frames; l; l = l->next) {
GstVideoCodecFrame *tmp = l->data;
BufferIdentification *id = gst_video_codec_frame_get_user_data (tmp);
guint64 timestamp, diff;
/* This happens for frames that were just added but
* which were not passed to the component yet. Ignore
* them here!
*/
if (!id)
continue;
timestamp = id->timestamp;
if (timestamp > reference_timestamp)
diff = timestamp - reference_timestamp;
else
diff = reference_timestamp - timestamp;
if (best == NULL || diff < best_diff) {
best = tmp;
best_timestamp = timestamp;
best_diff = diff;
best_l = l;
best_id = id;
/* For frames without timestamp we simply take the first frame */
if ((reference_timestamp == 0 && !GST_CLOCK_TIME_IS_VALID (timestamp))
|| diff == 0)
break;
}
}
if (best_id) {
for (l = frames; l && l != best_l; l = l->next) {
GstVideoCodecFrame *tmp = l->data;
BufferIdentification *id = gst_video_codec_frame_get_user_data (tmp);
guint64 diff_time, diff_frames;
if (id->timestamp > best_timestamp)
break;
if (id->timestamp == 0 || best_timestamp == 0)
diff_time = 0;
else
diff_time = best_timestamp - id->timestamp;
diff_frames = best->system_frame_number - tmp->system_frame_number;
if (diff_time > MAX_FRAME_DIST_TIME
|| diff_frames > MAX_FRAME_DIST_FRAMES) {
finish_frames =
g_list_prepend (finish_frames, gst_video_codec_frame_ref (tmp));
}
}
}
if (finish_frames) {
g_warning ("%s: Too old frames, bug in decoder -- please file a bug",
GST_ELEMENT_NAME (self));
for (l = finish_frames; l; l = l->next) {
gst_video_decoder_drop_frame (GST_VIDEO_DECODER (self), l->data);
}
}
if (best)
gst_video_codec_frame_ref (best);
g_list_foreach (frames, (GFunc) gst_video_codec_frame_unref, NULL);
g_list_free (frames);
return best;
}
static gboolean
gst_amc_video_dec_check_codec_config (GstAmcVideoDec * self)
{
gboolean ret = (self->codec_config == AMC_CODEC_CONFIG_NONE
|| (self->codec_config == AMC_CODEC_CONFIG_WITH_SURFACE
&& self->downstream_supports_gl)
|| (self->codec_config == AMC_CODEC_CONFIG_WITHOUT_SURFACE
&& !self->downstream_supports_gl));
if (!ret) {
GST_ERROR_OBJECT
(self,
"Codec configuration (%d) is not compatible with downstream which %s support GL output",
self->codec_config, self->downstream_supports_gl ? "does" : "does not");
}
return ret;
}
static gboolean
gst_amc_video_dec_set_src_caps (GstAmcVideoDec * self, GstAmcFormat * format)
{
GstVideoCodecState *output_state;
const gchar *mime;
gint color_format, width, height;
gint stride, slice_height;
gint crop_left, crop_right;
gint crop_top, crop_bottom;
GstVideoFormat gst_format;
GstAmcVideoDecClass *klass = GST_AMC_VIDEO_DEC_GET_CLASS (self);
GError *err = NULL;
gboolean ret;
if (!gst_amc_format_get_int (format, "color-format", &color_format, &err) ||
!gst_amc_format_get_int (format, "width", &width, &err) ||
!gst_amc_format_get_int (format, "height", &height, &err)) {
GST_ERROR_OBJECT (self, "Failed to get output format metadata: %s",
err->message);
g_clear_error (&err);
return FALSE;
}
if (gst_amc_format_get_int (format, "crop-left", &crop_left, NULL) &&
gst_amc_format_get_int (format, "crop-right", &crop_right, NULL)) {
width = crop_right + 1 - crop_left;
}
if (gst_amc_format_get_int (format, "crop-top", &crop_top, NULL) &&
gst_amc_format_get_int (format, "crop-bottom", &crop_bottom, NULL)) {
height = crop_bottom + 1 - crop_top;
}
if (width == 0 || height == 0) {
GST_ERROR_OBJECT (self, "Height or width not set");
return FALSE;
}
mime = caps_to_mime (self->input_state->caps);
if (!mime) {
GST_ERROR_OBJECT (self, "Failed to convert caps to mime");
return FALSE;
}
if (self->codec_config == AMC_CODEC_CONFIG_WITH_SURFACE) {
gst_format = GST_VIDEO_FORMAT_RGBA;
} else {
gst_format =
gst_amc_color_format_to_video_format (klass->codec_info, mime,
color_format);
}
if (gst_format == GST_VIDEO_FORMAT_UNKNOWN) {
GST_ERROR_OBJECT (self, "Unknown color format 0x%08x", color_format);
return FALSE;
}
output_state = gst_video_decoder_set_output_state (GST_VIDEO_DECODER (self),
gst_format, width, height, self->input_state);
/* FIXME: Special handling for multiview, untested */
if (color_format == COLOR_QCOM_FormatYVU420SemiPlanar32mMultiView) {
gst_video_multiview_video_info_change_mode (&output_state->info,
GST_VIDEO_MULTIVIEW_MODE_TOP_BOTTOM, GST_VIDEO_MULTIVIEW_FLAGS_NONE);
}
memset (&self->color_format_info, 0, sizeof (self->color_format_info));
if (self->codec_config == AMC_CODEC_CONFIG_WITH_SURFACE) {
if (output_state->caps)
gst_caps_unref (output_state->caps);
output_state->caps = gst_video_info_to_caps (&output_state->info);
gst_caps_set_features (output_state->caps, 0,
gst_caps_features_new (GST_CAPS_FEATURE_MEMORY_GL_MEMORY, NULL));
gst_caps_set_simple (output_state->caps, "texture-target", G_TYPE_STRING,
"external-oes", NULL);
GST_DEBUG_OBJECT (self, "Configuring for Surface output");
/* The width/height values are used in other places for
* checking if the resolution changed. Set everything
* that makes sense here
*/
self->color_format_info.color_format = COLOR_FormatAndroidOpaque;
self->color_format_info.width = width;
self->color_format_info.height = height;
self->color_format_info.crop_left = crop_left;
self->color_format_info.crop_right = crop_right;
self->color_format_info.crop_top = crop_top;
self->color_format_info.crop_bottom = crop_bottom;
goto out;
}
if (!gst_amc_format_get_int (format, "stride", &stride, &err) ||
!gst_amc_format_get_int (format, "slice-height", &slice_height, &err)) {
GST_ERROR_OBJECT (self, "Failed to get stride and slice-height: %s",
err->message);
g_clear_error (&err);
return FALSE;
}
self->format = gst_format;
self->width = width;
self->height = height;
if (!gst_amc_color_format_info_set (&self->color_format_info,
klass->codec_info, mime, color_format, width, height, stride,
slice_height, crop_left, crop_right, crop_top, crop_bottom)) {
GST_ERROR_OBJECT (self, "Failed to set up GstAmcColorFormatInfo");
return FALSE;
}
GST_DEBUG_OBJECT (self,
"Color format info: {color_format=%d (0x%08x), width=%d, height=%d, "
"stride=%d, slice-height=%d, crop-left=%d, crop-top=%d, "
"crop-right=%d, crop-bottom=%d, frame-size=%d}",
self->color_format_info.color_format,
self->color_format_info.color_format, self->color_format_info.width,
self->color_format_info.height, self->color_format_info.stride,
self->color_format_info.slice_height, self->color_format_info.crop_left,
self->color_format_info.crop_top, self->color_format_info.crop_right,
self->color_format_info.crop_bottom, self->color_format_info.frame_size);
out:
ret = gst_video_decoder_negotiate (GST_VIDEO_DECODER (self));
gst_video_codec_state_unref (output_state);
self->input_state_changed = FALSE;
return ret;
}
static gboolean
gst_amc_video_dec_fill_buffer (GstAmcVideoDec * self, GstAmcBuffer * buf,
const GstAmcBufferInfo * buffer_info, GstBuffer * outbuf)
{
GstVideoCodecState *state =
gst_video_decoder_get_output_state (GST_VIDEO_DECODER (self));
GstVideoInfo *info = &state->info;
gboolean ret = FALSE;
if (self->color_format_info.color_format == COLOR_FormatAndroidOpaque)
return FALSE;
ret =
gst_amc_color_format_copy (&self->color_format_info, buf, buffer_info,
info, outbuf, COLOR_FORMAT_COPY_OUT);
gst_video_codec_state_unref (state);
return ret;
}
static const gfloat yflip_matrix[16] = {
1.0f, 0.0f, 0.0f, 0.0f,
0.0f, -1.0f, 0.0f, 0.0f,
0.0f, 0.0f, 1.0f, 0.0f,
0.0f, 1.0f, 0.0f, 1.0f
};
static void
_amc_gl_set_sync (GstGLSyncMeta * sync_meta, GstGLContext * context)
{
}
static void
_gl_sync_release_buffer (struct gl_sync *sync, gboolean render)
{
GError *error = NULL;
if (!sync->result->released) {
sync->released_ts = g_get_monotonic_time ();
if ((gint) (sync->sink->gl_released_frame_count -
sync->sink->gl_ready_frame_count) > 0) {
guint diff =
sync->sink->gl_released_frame_count -
sync->sink->gl_ready_frame_count - 1u;
sync->sink->gl_ready_frame_count += diff;
GST_LOG ("gl_sync %p possible \'on_frame_available\' listener miss "
"detected, attempting to work around. Jumping forward %u "
"frames for frame %u", sync, diff, sync->gl_frame_no);
}
GST_TRACE ("gl_sync %p release_output_buffer idx %u frame %u render %s",
sync, sync->buffer_idx, sync->gl_frame_no, render ? "TRUE" : "FALSE");
/* Release the frame into the surface */
sync->sink->gl_released_frame_count++;
if (!render) {
/* Advance the ready counter ourselves if we aren't going to render
* and therefore receive a listener callback */
sync->sink->gl_ready_frame_count++;
}
if (!gst_amc_codec_release_output_buffer (sync->sink->codec,
sync->buffer_idx, render, &error)) {
GST_ERROR_OBJECT (sync->sink,
"gl_sync %p Failed to render buffer, index %d frame %u", sync,
sync->buffer_idx, sync->gl_frame_no);
goto out;
}
sync->result->released = TRUE;
sync->result->rendered = render;
}
out:
if (error) {
if (sync->sink->gl_error == NULL)
sync->sink->gl_error = error;
else
g_clear_error (&error);
}
}
static void
_gl_sync_release_next_buffer (struct gl_sync *sync, gboolean render)
{
GList *l;
if ((l = _find_gl_sync_for_frame (sync->sink, sync->gl_frame_no + 1))) {
struct gl_sync *next = l->data;
_gl_sync_release_buffer (next, render);
} else {
GST_TRACE ("gl_sync %p no next frame available", sync);
}
}
#define I(x,y) ((y)*4+(x))
static int
affine_inverse (float in[], float out[])
{
float s0, s1, s2, s3, s4, s5;
float c0, c1, c2, c3, c4, c5;
float det, invdet;
s0 = in[0] * in[I (1, 1)] - in[I (1, 0)] * in[I (0, 1)];
s1 = in[0] * in[I (1, 2)] - in[I (1, 0)] * in[I (0, 2)];
s2 = in[0] * in[I (1, 3)] - in[I (1, 0)] * in[I (0, 3)];
s3 = in[1] * in[I (1, 2)] - in[I (1, 1)] * in[I (0, 2)];
s4 = in[1] * in[I (1, 3)] - in[I (1, 1)] * in[I (0, 3)];
s5 = in[2] * in[I (1, 3)] - in[I (1, 2)] * in[I (0, 3)];
c0 = in[I (2, 0)] * in[I (3, 1)] - in[I (3, 0)] * in[I (2, 1)];
c1 = in[I (2, 0)] * in[I (3, 2)] - in[I (3, 0)] * in[I (2, 2)];
c2 = in[I (2, 0)] * in[I (3, 3)] - in[I (3, 0)] * in[I (2, 3)];
c3 = in[I (2, 1)] * in[I (3, 2)] - in[I (3, 1)] * in[I (2, 2)];
c4 = in[I (2, 1)] * in[I (3, 3)] - in[I (3, 1)] * in[I (2, 3)];
c5 = in[I (2, 2)] * in[I (3, 3)] - in[I (3, 2)] * in[I (2, 3)];
det = s0 * c5 - s1 * c4 + s2 * c3 + s3 * c2 - s4 * c1 + s5 * c0;
if (det == 0.0)
return 0;
invdet = 1.0 / det;
out[I (0, 0)] =
(in[I (1, 1)] * c5 - in[I (1, 2)] * c4 + in[I (1, 3)] * c3) * invdet;
out[I (0, 1)] =
(-in[I (0, 1)] * c5 + in[I (0, 2)] * c4 - in[I (0, 3)] * c3) * invdet;
out[I (0, 2)] =
(in[I (3, 1)] * s5 - in[I (3, 2)] * s4 + in[I (3, 3)] * s3) * invdet;
out[I (0, 3)] =
(-in[I (2, 1)] * s5 + in[I (2, 2)] * s4 - in[I (2, 3)] * s3) * invdet;
out[I (1, 0)] =
(-in[I (1, 0)] * c5 + in[I (1, 2)] * c2 - in[I (1, 3)] * c1) * invdet;
out[I (1, 1)] =
(in[I (0, 0)] * c5 - in[I (0, 2)] * c2 + in[I (0, 3)] * c1) * invdet;
out[I (1, 2)] =
(-in[I (3, 0)] * s5 + in[I (3, 2)] * s2 - in[I (3, 3)] * s1) * invdet;
out[I (1, 3)] =
(in[I (2, 0)] * s5 - in[I (2, 2)] * s2 + in[I (2, 3)] * s1) * invdet;
out[I (2, 0)] =
(in[I (1, 0)] * c4 - in[I (1, 1)] * c2 + in[I (1, 3)] * c0) * invdet;
out[I (2, 1)] =
(-in[I (0, 0)] * c4 + in[I (0, 1)] * c2 - in[I (0, 3)] * c0) * invdet;
out[I (2, 2)] =
(in[I (3, 0)] * s4 - in[I (3, 1)] * s2 + in[I (3, 3)] * s0) * invdet;
out[I (2, 3)] =
(-in[I (2, 0)] * s4 + in[I (2, 1)] * s2 - in[I (2, 3)] * s0) * invdet;
out[I (3, 0)] =
(-in[I (1, 0)] * c3 + in[I (1, 1)] * c1 - in[I (1, 2)] * c0) * invdet;
out[I (3, 1)] =
(in[I (0, 0)] * c3 - in[I (0, 1)] * c1 + in[I (0, 2)] * c0) * invdet;
out[I (3, 2)] =
(-in[I (3, 0)] * s3 + in[I (3, 1)] * s1 - in[I (3, 2)] * s0) * invdet;
out[I (3, 3)] =
(in[I (2, 0)] * s3 - in[I (2, 1)] * s1 + in[I (2, 2)] * s0) * invdet;
return 1;
}
#undef I
/* caller should remove from the gl_queue after calling this function.
* _gl_sync_release_buffer must be called before this function */
static void
_gl_sync_render_unlocked (struct gl_sync *sync)
{
GstVideoAffineTransformationMeta *af_meta;
GError *error = NULL;
gfloat matrix[16];
gint64 ts = 0;
GST_TRACE ("gl_sync %p result %p render (updated:%u)", sync, sync->result,
sync->result->updated);
if (sync->result->updated || !sync->result->rendered)
return;
/* FIXME: if this ever starts returning valid values we should attempt
* to use it */
if (!gst_amc_surface_texture_get_timestamp (sync->surface, &ts, &error)) {
GST_ERROR_OBJECT (sync->sink, "Failed to update texture image");
GST_ELEMENT_ERROR_FROM_ERROR (sync->sink, error);
goto out;
}
GST_TRACE ("gl_sync %p rendering timestamp before update %" G_GINT64_FORMAT,
sync, ts);
GST_TRACE ("gl_sync %p update_tex_image", sync);
if (!gst_amc_surface_texture_update_tex_image (sync->surface, &error)) {
GST_ERROR_OBJECT (sync->sink, "Failed to update texture image");
GST_ELEMENT_ERROR_FROM_ERROR (sync->sink, error);
goto out;
}
GST_TRACE ("gl_sync result %p updated", sync->result);
sync->result->updated = TRUE;
sync->sink->gl_last_rendered_frame = sync->gl_frame_no;
if (!gst_amc_surface_texture_get_timestamp (sync->surface, &ts, &error)) {
GST_ERROR_OBJECT (sync->sink, "Failed to update texture image");
GST_ELEMENT_ERROR_FROM_ERROR (sync->sink, error);
goto out;
}
GST_TRACE ("gl_sync %p rendering timestamp after update %" G_GINT64_FORMAT,
sync, ts);
af_meta = gst_buffer_get_video_affine_transformation_meta (sync->buffer);
if (!af_meta) {
GST_WARNING ("Failed to retrieve the transformation meta from the "
"gl_sync %p buffer %p", sync, sync->buffer);
} else if (gst_amc_surface_texture_get_transform_matrix (sync->surface,
matrix, &error)) {
gfloat inv_mat[16];
/* The transform from mediacodec applies to the texture coords, but
* GStreamer affine meta applies to the video geometry, which is the
* opposite - so we invert it */
if (affine_inverse (matrix, inv_mat)) {
gst_video_affine_transformation_meta_apply_matrix (af_meta, inv_mat);
} else {
GST_WARNING
("Failed to invert display transform - the video won't display right. "
"Transform matrix [ %f %f %f %f, %f %f %f %f, %f %f %f %f, %f %f %f %f ]",
matrix[0], matrix[1], matrix[2], matrix[3], matrix[4], matrix[5],
matrix[6], matrix[7], matrix[8], matrix[9], matrix[10], matrix[11],
matrix[12], matrix[13], matrix[14], matrix[15]);
}
gst_video_affine_transformation_meta_apply_matrix (af_meta, yflip_matrix);
}
GST_LOG ("gl_sync %p successfully updated SurfaceTexture %p into "
"OES texture %u", sync, sync->surface, sync->oes_mem->tex_id);
out:
if (error) {
if (sync->sink->gl_error == NULL)
sync->sink->gl_error = error;
else
g_clear_error (&error);
}
_gl_sync_release_next_buffer (sync, TRUE);
}
static gboolean
_amc_gl_possibly_wait_for_gl_sync (struct gl_sync *sync, gint64 end_time)
{
GST_TRACE ("gl_sync %p waiting for frame %u current %u updated %u ", sync,
sync->gl_frame_no, sync->sink->gl_ready_frame_count,
sync->result->updated);
if ((gint) (sync->sink->gl_last_rendered_frame - sync->gl_frame_no) > 0) {
GST_ERROR ("gl_sync %p unsuccessfully waited for frame %u. out of order "
"wait detected", sync, sync->gl_frame_no);
return FALSE;
}
/* The number of frame callbacks (gl_ready_frame_count) is not a direct
* relationship with the number of pushed buffers (gl_pushed_frame_count)
* or even, the number of released buffers (gl_released_frame_count)
* as, from the frameworks/native/include/gui/ConsumerBase.h file,
*
* "...frames that are queued while in asynchronous mode only trigger the
* callback if no previous frames are pending."
*
* As a result, we need to advance the ready counter somehow ourselves when
* such events happen. There is no reliable way of knowing when/if the frame
* listener is going to fire. The only unique identifier,
* SurfaceTexture::get_timestamp seems to always return 0.
*
* The maximum queue size as defined in
* frameworks/native/include/gui/BufferQueue.h
* is 32 of which a maximum of 30 can be acquired at a time so we picked a
* number less than that to wait for before updating the ready frame count.
*/
while (!sync->result->updated
&& (gint) (sync->sink->gl_ready_frame_count - sync->gl_frame_no) < 0) {
/* The time limit is need otherwise when amc decides to not emit the
* frame listener (say, on orientation changes) we don't wait foreever */
if (end_time == -1 || !g_cond_wait_until (&sync->sink->gl_cond,
&sync->sink->gl_lock, end_time)) {
GST_LOG ("gl_sync %p unsuccessfully waited for frame %u", sync,
sync->gl_frame_no);
return FALSE;
}
}
GST_LOG ("gl_sync %p successfully waited for frame %u", sync,
sync->gl_frame_no);
return TRUE;
}
static gboolean
_amc_gl_iterate_queue_unlocked (GstGLSyncMeta * sync_meta, gboolean wait)
{
struct gl_sync *sync = sync_meta->data;
struct gl_sync *tmp;
gboolean ret = TRUE;
gint64 end_time;
while ((tmp = g_queue_peek_head (sync->sink->gl_queue))) {
/* skip frames that are ahead of the current wait frame */
if ((gint) (sync->gl_frame_no - tmp->gl_frame_no) < 0) {
GST_TRACE ("gl_sync %p frame %u is ahead of gl_sync %p frame %u", tmp,
tmp->gl_frame_no, sync, sync->gl_frame_no);
break;
}
_gl_sync_release_buffer (tmp, wait);
/* Frames are currently pushed in order and waits need to be performed
* in the same order */
end_time = wait ? 30 * G_TIME_SPAN_MILLISECOND + tmp->released_ts : -1;
if (!_amc_gl_possibly_wait_for_gl_sync (tmp, end_time))
ret = FALSE;
_gl_sync_render_unlocked (tmp);
g_queue_pop_head (tmp->sink->gl_queue);
_gl_sync_unref (tmp);
}
return ret;
}
struct gl_wait
{
GstGLSyncMeta *sync_meta;
gboolean ret;
};
static void
_amc_gl_wait_gl (GstGLContext * context, struct gl_wait *wait)
{
struct gl_sync *sync = wait->sync_meta->data;
g_mutex_lock (&sync->sink->gl_lock);
wait->ret = _amc_gl_iterate_queue_unlocked (wait->sync_meta, TRUE);
g_mutex_unlock (&sync->sink->gl_lock);
}
static void
_amc_gl_wait (GstGLSyncMeta * sync_meta, GstGLContext * context)
{
struct gl_sync *sync = sync_meta->data;
struct gl_wait wait;
wait.sync_meta = sync_meta;
wait.ret = FALSE;
gst_gl_context_thread_add (context,
(GstGLContextThreadFunc) _amc_gl_wait_gl, &wait);
if (!wait.ret)
GST_WARNING ("gl_sync %p could not wait for frame, took too long", sync);
}
static void
_amc_gl_copy (GstGLSyncMeta * src, GstBuffer * sbuffer, GstGLSyncMeta * dest,
GstBuffer * dbuffer)
{
struct gl_sync *sync = src->data;
struct gl_sync *tmp;
tmp = g_new0 (struct gl_sync, 1);
GST_TRACE ("copying gl_sync %p to %p", sync, tmp);
g_mutex_lock (&sync->sink->gl_lock);
tmp->refcount = 1;
tmp->sink = gst_object_ref (sync->sink);
tmp->buffer = dbuffer;
tmp->oes_mem = (GstGLMemory *) gst_memory_ref ((GstMemory *) sync->oes_mem);
tmp->surface = g_object_ref (sync->surface);
tmp->gl_frame_no = sync->gl_frame_no;
tmp->released_ts = sync->released_ts;
tmp->result = sync->result;
_gl_sync_result_ref (tmp->result);
dest->data = tmp;
g_mutex_unlock (&sync->sink->gl_lock);
}
static void
_amc_gl_render_on_free (GstGLContext * context, GstGLSyncMeta * sync_meta)
{
struct gl_sync *sync = sync_meta->data;
g_mutex_lock (&sync->sink->gl_lock);
/* just render as many frames as we have */
_amc_gl_iterate_queue_unlocked (sync_meta, FALSE);
g_mutex_unlock (&sync->sink->gl_lock);
}
static void
_amc_gl_free (GstGLSyncMeta * sync_meta, GstGLContext * context)
{
struct gl_sync *sync = sync_meta->data;
/* The wait render queue inside android is not very deep so when we drop
* frames we need to signal that we have rendered them if we have any chance
* of keeping up between the decoder, the android GL queue and downstream
* OpenGL. If we don't do this, once we start dropping frames downstream,
* it is very near to impossible for the pipeline to catch up. */
gst_gl_context_thread_add (context,
(GstGLContextThreadFunc) _amc_gl_render_on_free, sync_meta);
_gl_sync_unref (sync);
}
static void
gst_amc_video_dec_loop (GstAmcVideoDec * self)
{
GstVideoCodecFrame *frame;
GstFlowReturn flow_ret = GST_FLOW_OK;
GstClockTimeDiff deadline;
gboolean is_eos;
GstAmcBuffer *buf;
GstAmcBufferInfo buffer_info;
gint idx;
GError *err = NULL;
gboolean release_buffer = TRUE;
GST_VIDEO_DECODER_STREAM_LOCK (self);
retry:
/*if (self->input_state_changed) {
idx = INFO_OUTPUT_FORMAT_CHANGED;
} else { */
GST_DEBUG_OBJECT (self, "Waiting for available output buffer");
GST_VIDEO_DECODER_STREAM_UNLOCK (self);
/* Wait at most 100ms here, some codecs don't fail dequeueing if
* the codec is flushing, causing deadlocks during shutdown */
idx =
gst_amc_codec_dequeue_output_buffer (self->codec, &buffer_info, 100000,
&err);
GST_VIDEO_DECODER_STREAM_LOCK (self);
/*} */
GST_DEBUG_OBJECT (self, "dequeueOutputBuffer() returned %d (0x%x)", idx, idx);
if (idx < 0) {
if (self->flushing) {
g_clear_error (&err);
goto flushing;
}
switch (idx) {
case INFO_OUTPUT_BUFFERS_CHANGED:
/* Handled internally */
g_assert_not_reached ();
break;
case INFO_OUTPUT_FORMAT_CHANGED:{
GstAmcFormat *format;
gchar *format_string;
GST_DEBUG_OBJECT (self, "Output format has changed");
format = gst_amc_codec_get_output_format (self->codec, &err);
if (!format)
goto format_error;
format_string = gst_amc_format_to_string (format, &err);
if (!format) {
gst_amc_format_free (format);
goto format_error;
}
GST_DEBUG_OBJECT (self, "Got new output format: %s", format_string);
g_free (format_string);
if (!gst_amc_video_dec_set_src_caps (self, format)) {
gst_amc_format_free (format);
goto format_error;
}
gst_amc_format_free (format);
goto retry;
}
case INFO_TRY_AGAIN_LATER:
GST_DEBUG_OBJECT (self, "Dequeueing output buffer timed out");
goto retry;
case G_MININT:
GST_ERROR_OBJECT (self, "Failure dequeueing output buffer");
goto dequeue_error;
default:
g_assert_not_reached ();
break;
}
goto retry;
}
GST_DEBUG_OBJECT (self,
"Got output buffer at index %d: offset %d size %d time %" G_GINT64_FORMAT
" flags 0x%08x", idx, buffer_info.offset, buffer_info.size,
buffer_info.presentation_time_us, buffer_info.flags);
buf = gst_amc_codec_get_output_buffer (self->codec, idx, &err);
if (err) {
if (self->flushing) {
g_clear_error (&err);
goto flushing;
}
goto failed_to_get_output_buffer;
}
if (self->codec_config != AMC_CODEC_CONFIG_WITH_SURFACE && !buf)
goto got_null_output_buffer;
frame =
_find_nearest_frame (self,
gst_util_uint64_scale (buffer_info.presentation_time_us, GST_USECOND, 1));
is_eos = !!(buffer_info.flags & BUFFER_FLAG_END_OF_STREAM);
if (frame
&& (deadline =
gst_video_decoder_get_max_decode_time (GST_VIDEO_DECODER (self),
frame)) < 0) {
GST_WARNING_OBJECT (self,
"Frame is too late, dropping (deadline %" GST_STIME_FORMAT ")",
GST_STIME_ARGS (deadline));
flow_ret = gst_video_decoder_drop_frame (GST_VIDEO_DECODER (self), frame);
} else if (frame && self->codec_config == AMC_CODEC_CONFIG_WITH_SURFACE) {
GstBuffer *outbuf;
GstGLSyncMeta *sync_meta;
GstVideoCodecState *state;
struct gl_sync *sync;
gboolean first_buffer = FALSE;
g_mutex_lock (&self->gl_lock);
if (self->gl_error) {
GST_ELEMENT_ERROR_FROM_ERROR (self, self->gl_error);
g_mutex_unlock (&self->gl_lock);
goto gl_output_error;
}
g_mutex_unlock (&self->gl_lock);
outbuf = gst_buffer_new ();
state = gst_video_decoder_get_output_state (GST_VIDEO_DECODER (self));
if (!self->oes_mem) {
GstGLBaseMemoryAllocator *base_mem_alloc;
GstGLVideoAllocationParams *params;
base_mem_alloc =
GST_GL_BASE_MEMORY_ALLOCATOR (gst_allocator_find
(GST_GL_MEMORY_ALLOCATOR_NAME));
params = gst_gl_video_allocation_params_new (self->gl_context, NULL,
&state->info, 0, NULL, GST_GL_TEXTURE_TARGET_EXTERNAL_OES,
GST_GL_RGBA);
self->oes_mem = (GstGLMemory *) gst_gl_base_memory_alloc (base_mem_alloc,
(GstGLAllocationParams *) params);
gst_gl_allocation_params_free ((GstGLAllocationParams *) params);
gst_object_unref (base_mem_alloc);
gst_gl_context_thread_add (self->gl_context,
(GstGLContextThreadFunc) _attach_mem_to_context, self);
first_buffer = TRUE;
}
gst_video_codec_state_unref (state);
gst_buffer_append_memory (outbuf,
gst_memory_ref ((GstMemory *) self->oes_mem));
sync = g_new0 (struct gl_sync, 1);
sync->refcount = 1;
sync->sink = g_object_ref (self);
sync->buffer = outbuf;
sync->surface = g_object_ref (self->surface);
sync->oes_mem =
(GstGLMemory *) gst_memory_ref ((GstMemory *) self->oes_mem);
sync->buffer_idx = idx;
sync->result = g_new0 (struct gl_sync_result, 1);
sync->result->refcount = 1;
sync->result->updated = FALSE;
GST_TRACE ("new gl_sync %p result %p", sync, sync->result);
sync_meta = gst_buffer_add_gl_sync_meta_full (self->gl_context, outbuf,
sync);
sync_meta->set_sync = _amc_gl_set_sync;
sync_meta->wait = _amc_gl_wait;
sync_meta->wait_cpu = _amc_gl_wait;
sync_meta->copy = _amc_gl_copy;
sync_meta->free = _amc_gl_free;
/* The meta needs to be created now:
* Later (in _gl_sync_render_unlocked) the buffer will be locked.
*/
gst_buffer_add_video_affine_transformation_meta (outbuf);
g_mutex_lock (&self->gl_lock);
self->gl_pushed_frame_count++;
sync->gl_frame_no = self->gl_pushed_frame_count;
g_queue_push_tail (self->gl_queue, _gl_sync_ref (sync));
if (first_buffer) {
_gl_sync_release_buffer (sync, TRUE);
if (self->gl_error) {
gst_buffer_unref (outbuf);
g_mutex_unlock (&self->gl_lock);
goto gl_output_error;
}
}
g_mutex_unlock (&self->gl_lock);
GST_DEBUG_OBJECT (self, "push GL frame %u", sync->gl_frame_no);
frame->output_buffer = outbuf;
flow_ret = gst_video_decoder_finish_frame (GST_VIDEO_DECODER (self), frame);
release_buffer = FALSE;
} else if (self->codec_config == AMC_CODEC_CONFIG_WITHOUT_SURFACE && !frame
&& buffer_info.size > 0) {
GstBuffer *outbuf;
/* This sometimes happens at EOS or if the input is not properly framed,
* let's handle it gracefully by allocating a new buffer for the current
* caps and filling it
*/
GST_ERROR_OBJECT (self, "No corresponding frame found");
outbuf =
gst_video_decoder_allocate_output_buffer (GST_VIDEO_DECODER (self));
if (!gst_amc_video_dec_fill_buffer (self, buf, &buffer_info, outbuf)) {
gst_buffer_unref (outbuf);
if (!gst_amc_codec_release_output_buffer (self->codec, idx, FALSE, &err))
GST_ERROR_OBJECT (self, "Failed to release output buffer index %d",
idx);
if (err && !self->flushing)
GST_ELEMENT_WARNING_FROM_ERROR (self, err);
g_clear_error (&err);
gst_amc_buffer_free (buf);
buf = NULL;
goto invalid_buffer;
}
GST_BUFFER_PTS (outbuf) =
gst_util_uint64_scale (buffer_info.presentation_time_us, GST_USECOND,
1);
flow_ret = gst_pad_push (GST_VIDEO_DECODER_SRC_PAD (self), outbuf);
} else if (self->codec_config == AMC_CODEC_CONFIG_WITHOUT_SURFACE && frame
&& buffer_info.size > 0) {
if ((flow_ret =
gst_video_decoder_allocate_output_frame (GST_VIDEO_DECODER (self),
frame)) != GST_FLOW_OK) {
GST_ERROR_OBJECT (self, "Failed to allocate buffer");
if (!gst_amc_codec_release_output_buffer (self->codec, idx, FALSE, &err))
GST_ERROR_OBJECT (self, "Failed to release output buffer index %d",
idx);
if (err && !self->flushing)
GST_ELEMENT_WARNING_FROM_ERROR (self, err);
g_clear_error (&err);
gst_amc_buffer_free (buf);
buf = NULL;
goto flow_error;
}
if (!gst_amc_video_dec_fill_buffer (self, buf, &buffer_info,
frame->output_buffer)) {
gst_buffer_replace (&frame->output_buffer, NULL);
gst_video_decoder_drop_frame (GST_VIDEO_DECODER (self), frame);
if (!gst_amc_codec_release_output_buffer (self->codec, idx, FALSE, &err))
GST_ERROR_OBJECT (self, "Failed to release output buffer index %d",
idx);
if (err && !self->flushing)
GST_ELEMENT_WARNING_FROM_ERROR (self, err);
g_clear_error (&err);
gst_amc_buffer_free (buf);
buf = NULL;
goto invalid_buffer;
}
flow_ret = gst_video_decoder_finish_frame (GST_VIDEO_DECODER (self), frame);
} else if (frame != NULL) {
flow_ret = gst_video_decoder_drop_frame (GST_VIDEO_DECODER (self), frame);
}
if (buf) {
gst_amc_buffer_free (buf);
buf = NULL;
}
if (release_buffer) {
if (!gst_amc_codec_release_output_buffer (self->codec, idx, FALSE, &err)) {
if (self->flushing) {
g_clear_error (&err);
goto flushing;
}
goto failed_release;
}
}
if (is_eos || flow_ret == GST_FLOW_EOS) {
GST_VIDEO_DECODER_STREAM_UNLOCK (self);
g_mutex_lock (&self->drain_lock);
if (self->draining) {
GST_DEBUG_OBJECT (self, "Drained");
self->draining = FALSE;
g_cond_broadcast (&self->drain_cond);
} else if (flow_ret == GST_FLOW_OK) {
GST_DEBUG_OBJECT (self, "Component signalled EOS");
flow_ret = GST_FLOW_EOS;
}
g_mutex_unlock (&self->drain_lock);
GST_VIDEO_DECODER_STREAM_LOCK (self);
} else {
GST_DEBUG_OBJECT (self, "Finished frame: %s", gst_flow_get_name (flow_ret));
}
self->downstream_flow_ret = flow_ret;
if (flow_ret != GST_FLOW_OK)
goto flow_error;
GST_VIDEO_DECODER_STREAM_UNLOCK (self);
return;
dequeue_error:
{
GST_ELEMENT_ERROR_FROM_ERROR (self, err);
gst_pad_push_event (GST_VIDEO_DECODER_SRC_PAD (self), gst_event_new_eos ());
gst_pad_pause_task (GST_VIDEO_DECODER_SRC_PAD (self));
self->downstream_flow_ret = GST_FLOW_ERROR;
GST_VIDEO_DECODER_STREAM_UNLOCK (self);
g_mutex_lock (&self->drain_lock);
self->draining = FALSE;
g_cond_broadcast (&self->drain_cond);
g_mutex_unlock (&self->drain_lock);
return;
}
format_error:
{
if (err)
GST_ELEMENT_ERROR_FROM_ERROR (self, err);
else
GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL),
("Failed to handle format"));
gst_pad_push_event (GST_VIDEO_DECODER_SRC_PAD (self), gst_event_new_eos ());
gst_pad_pause_task (GST_VIDEO_DECODER_SRC_PAD (self));
self->downstream_flow_ret = GST_FLOW_ERROR;
GST_VIDEO_DECODER_STREAM_UNLOCK (self);
g_mutex_lock (&self->drain_lock);
self->draining = FALSE;
g_cond_broadcast (&self->drain_cond);
g_mutex_unlock (&self->drain_lock);
return;
}
failed_release:
{
GST_VIDEO_DECODER_ERROR_FROM_ERROR (self, err);
gst_pad_push_event (GST_VIDEO_DECODER_SRC_PAD (self), gst_event_new_eos ());
gst_pad_pause_task (GST_VIDEO_DECODER_SRC_PAD (self));
self->downstream_flow_ret = GST_FLOW_ERROR;
GST_VIDEO_DECODER_STREAM_UNLOCK (self);
g_mutex_lock (&self->drain_lock);
self->draining = FALSE;
g_cond_broadcast (&self->drain_cond);
g_mutex_unlock (&self->drain_lock);
return;
}
flushing:
{
GST_DEBUG_OBJECT (self, "Flushing -- stopping task");
gst_pad_pause_task (GST_VIDEO_DECODER_SRC_PAD (self));
self->downstream_flow_ret = GST_FLOW_FLUSHING;
GST_VIDEO_DECODER_STREAM_UNLOCK (self);
return;
}
flow_error:
{
if (flow_ret == GST_FLOW_EOS) {
GST_DEBUG_OBJECT (self, "EOS");
gst_pad_push_event (GST_VIDEO_DECODER_SRC_PAD (self),
gst_event_new_eos ());
gst_pad_pause_task (GST_VIDEO_DECODER_SRC_PAD (self));
} else if (flow_ret < GST_FLOW_EOS) {
GST_ELEMENT_FLOW_ERROR (self, flow_ret);
gst_pad_push_event (GST_VIDEO_DECODER_SRC_PAD (self),
gst_event_new_eos ());
gst_pad_pause_task (GST_VIDEO_DECODER_SRC_PAD (self));
} else if (flow_ret == GST_FLOW_FLUSHING) {
GST_DEBUG_OBJECT (self, "Flushing -- stopping task");
gst_pad_pause_task (GST_VIDEO_DECODER_SRC_PAD (self));
}
GST_VIDEO_DECODER_STREAM_UNLOCK (self);
g_mutex_lock (&self->drain_lock);
self->draining = FALSE;
g_cond_broadcast (&self->drain_cond);
g_mutex_unlock (&self->drain_lock);
return;
}
failed_to_get_output_buffer:
{
GST_VIDEO_DECODER_ERROR_FROM_ERROR (self, err);
gst_pad_push_event (GST_VIDEO_DECODER_SRC_PAD (self), gst_event_new_eos ());
gst_pad_pause_task (GST_VIDEO_DECODER_SRC_PAD (self));
self->downstream_flow_ret = GST_FLOW_ERROR;
GST_VIDEO_DECODER_STREAM_UNLOCK (self);
g_mutex_lock (&self->drain_lock);
self->draining = FALSE;
g_cond_broadcast (&self->drain_cond);
g_mutex_unlock (&self->drain_lock);
return;
}
got_null_output_buffer:
{
GST_ELEMENT_ERROR (self, LIBRARY, SETTINGS, (NULL),
("Got no output buffer"));
gst_pad_push_event (GST_VIDEO_DECODER_SRC_PAD (self), gst_event_new_eos ());
gst_pad_pause_task (GST_VIDEO_DECODER_SRC_PAD (self));
self->downstream_flow_ret = GST_FLOW_ERROR;
GST_VIDEO_DECODER_STREAM_UNLOCK (self);
g_mutex_lock (&self->drain_lock);
self->draining = FALSE;
g_cond_broadcast (&self->drain_cond);
g_mutex_unlock (&self->drain_lock);
return;
}
invalid_buffer:
{
GST_ELEMENT_ERROR (self, LIBRARY, SETTINGS, (NULL),
("Invalid sized input buffer"));
gst_pad_push_event (GST_VIDEO_DECODER_SRC_PAD (self), gst_event_new_eos ());
gst_pad_pause_task (GST_VIDEO_DECODER_SRC_PAD (self));
self->downstream_flow_ret = GST_FLOW_NOT_NEGOTIATED;
GST_VIDEO_DECODER_STREAM_UNLOCK (self);
g_mutex_lock (&self->drain_lock);
self->draining = FALSE;
g_cond_broadcast (&self->drain_cond);
g_mutex_unlock (&self->drain_lock);
return;
}
gl_output_error:
{
if (buf) {
gst_amc_buffer_free (buf);
buf = NULL;
}
gst_pad_push_event (GST_VIDEO_DECODER_SRC_PAD (self), gst_event_new_eos ());
gst_pad_pause_task (GST_VIDEO_DECODER_SRC_PAD (self));
self->downstream_flow_ret = GST_FLOW_NOT_NEGOTIATED;
GST_VIDEO_DECODER_STREAM_UNLOCK (self);
g_mutex_lock (&self->drain_lock);
self->draining = FALSE;
g_cond_broadcast (&self->drain_cond);
g_mutex_unlock (&self->drain_lock);
return;
}
}
static gboolean
gst_amc_video_dec_start (GstVideoDecoder * decoder)
{
GstAmcVideoDec *self;
self = GST_AMC_VIDEO_DEC (decoder);
self->last_upstream_ts = 0;
self->drained = TRUE;
self->downstream_flow_ret = GST_FLOW_OK;
self->started = FALSE;
self->flushing = TRUE;
return TRUE;
}
static gboolean
gst_amc_video_dec_stop (GstVideoDecoder * decoder)
{
GstAmcVideoDec *self;
GError *err = NULL;
self = GST_AMC_VIDEO_DEC (decoder);
GST_DEBUG_OBJECT (self, "Stopping decoder");
self->flushing = TRUE;
if (self->started) {
gst_amc_codec_flush (self->codec, &err);
if (err)
GST_ELEMENT_WARNING_FROM_ERROR (self, err);
gst_amc_codec_stop (self->codec, &err);
if (err)
GST_ELEMENT_WARNING_FROM_ERROR (self, err);
self->started = FALSE;
}
gst_pad_stop_task (GST_VIDEO_DECODER_SRC_PAD (decoder));
self->downstream_flow_ret = GST_FLOW_FLUSHING;
self->drained = TRUE;
g_mutex_lock (&self->drain_lock);
self->draining = FALSE;
g_cond_broadcast (&self->drain_cond);
g_mutex_unlock (&self->drain_lock);
g_free (self->codec_data);
self->codec_data_size = 0;
if (self->input_state)
gst_video_codec_state_unref (self->input_state);
self->input_state = NULL;
GST_DEBUG_OBJECT (self, "Stopped decoder");
return TRUE;
}
static gboolean
gst_amc_video_dec_set_format (GstVideoDecoder * decoder,
GstVideoCodecState * state)
{
GstAmcVideoDec *self;
GstAmcVideoDecClass *klass;
GstAmcFormat *format;
const gchar *mime;
gboolean is_format_change = FALSE;
gboolean needs_disable = FALSE;
gchar *format_string;
guint8 *codec_data = NULL;
gsize codec_data_size = 0;
GError *err = NULL;
self = GST_AMC_VIDEO_DEC (decoder);
klass = GST_AMC_VIDEO_DEC_GET_CLASS (self);
GST_DEBUG_OBJECT (self, "Setting new caps %" GST_PTR_FORMAT, state->caps);
/* Check if the caps change is a real format change or if only irrelevant
* parts of the caps have changed or nothing at all.
*/
is_format_change |= self->color_format_info.width != state->info.width;
is_format_change |= self->color_format_info.height != state->info.height;
if (state->codec_data) {
GstMapInfo cminfo;
gst_buffer_map (state->codec_data, &cminfo, GST_MAP_READ);
codec_data = g_memdup2 (cminfo.data, cminfo.size);
codec_data_size = cminfo.size;
is_format_change |= (!self->codec_data
|| self->codec_data_size != codec_data_size
|| memcmp (self->codec_data, codec_data, codec_data_size) != 0);
gst_buffer_unmap (state->codec_data, &cminfo);
} else if (self->codec_data) {
is_format_change |= TRUE;
}
needs_disable = self->started;
/* If the component is not started and a real format change happens
* we have to restart the component. If no real format change
* happened we can just exit here.
*/
if (needs_disable && !is_format_change) {
g_free (codec_data);
codec_data = NULL;
codec_data_size = 0;
/* Framerate or something minor changed */
self->input_state_changed = TRUE;
if (self->input_state)
gst_video_codec_state_unref (self->input_state);
self->input_state = gst_video_codec_state_ref (state);
GST_DEBUG_OBJECT (self,
"Already running and caps did not change the format");
return TRUE;
}
if (needs_disable && is_format_change) {
gst_amc_video_dec_drain (self);
GST_VIDEO_DECODER_STREAM_UNLOCK (self);
gst_amc_video_dec_stop (GST_VIDEO_DECODER (self));
GST_VIDEO_DECODER_STREAM_LOCK (self);
gst_amc_video_dec_close (GST_VIDEO_DECODER (self));
if (!gst_amc_video_dec_open (GST_VIDEO_DECODER (self))) {
GST_ERROR_OBJECT (self, "Failed to open codec again");
return FALSE;
}
if (!gst_amc_video_dec_start (GST_VIDEO_DECODER (self))) {
GST_ERROR_OBJECT (self, "Failed to start codec again");
}
}
/* srcpad task is not running at this point */
if (self->input_state)
gst_video_codec_state_unref (self->input_state);
self->input_state = NULL;
g_free (self->codec_data);
self->codec_data = codec_data;
self->codec_data_size = codec_data_size;
mime = caps_to_mime (state->caps);
if (!mime) {
GST_ERROR_OBJECT (self, "Failed to convert caps to mime");
return FALSE;
}
format =
gst_amc_format_new_video (mime, state->info.width, state->info.height,
&err);
if (!format) {
GST_ERROR_OBJECT (self, "Failed to create video format");
GST_ELEMENT_ERROR_FROM_ERROR (self, err);
return FALSE;
}
/* FIXME: This buffer needs to be valid until the codec is stopped again */
if (self->codec_data) {
gst_amc_format_set_buffer (format, "csd-0", self->codec_data,
self->codec_data_size, &err);
if (err)
GST_ELEMENT_WARNING_FROM_ERROR (self, err);
}
{
gboolean downstream_supports_gl = FALSE;
GstVideoDecoder *decoder = GST_VIDEO_DECODER (self);
GstPad *src_pad = GST_VIDEO_DECODER_SRC_PAD (decoder);
GstCaps *templ_caps = gst_pad_get_pad_template_caps (src_pad);
GstCaps *downstream_caps = gst_pad_peer_query_caps (src_pad, templ_caps);
gst_caps_unref (templ_caps);
if (downstream_caps) {
guint i, n;
GstStaticCaps static_caps =
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_GL_MEMORY, "RGBA"));
GstCaps *gl_memory_caps = gst_static_caps_get (&static_caps);
GST_DEBUG_OBJECT (self, "Available downstream caps: %" GST_PTR_FORMAT,
downstream_caps);
/* Check if downstream caps supports
* video/x-raw(memory:GLMemory),format=RGBA */
n = gst_caps_get_size (downstream_caps);
for (i = 0; i < n; i++) {
GstCaps *caps = NULL;
GstStructure *structure = gst_caps_get_structure (downstream_caps, i);
GstCapsFeatures *features = gst_caps_get_features (downstream_caps, i);
caps = gst_caps_new_full (gst_structure_copy (structure), NULL);
if (!caps)
continue;
gst_caps_set_features (caps, 0, gst_caps_features_copy (features));
if (gst_caps_can_intersect (caps, gl_memory_caps)) {
downstream_supports_gl = TRUE;
}
gst_caps_unref (caps);
if (downstream_supports_gl)
break;
}
gst_caps_unref (gl_memory_caps);
/* If video/x-raw(memory:GLMemory),format=RGBA is supported,
* update the video decoder output state accordingly and negotiate */
if (downstream_supports_gl) {
GstVideoCodecState *output_state = NULL;
GstVideoCodecState *prev_output_state = NULL;
prev_output_state = gst_video_decoder_get_output_state (decoder);
output_state =
gst_video_decoder_set_output_state (decoder, GST_VIDEO_FORMAT_RGBA,
state->info.width, state->info.height, state);
if (output_state->caps) {
gst_caps_unref (output_state->caps);
}
output_state->caps = gst_video_info_to_caps (&output_state->info);
gst_caps_set_features (output_state->caps, 0,
gst_caps_features_new (GST_CAPS_FEATURE_MEMORY_GL_MEMORY, NULL));
/* gst_amc_video_dec_decide_allocation will update
* self->downstream_supports_gl */
if (!gst_video_decoder_negotiate (decoder)) {
GST_ERROR_OBJECT (self, "Failed to negotiate");
/* Rollback output state changes */
if (prev_output_state) {
output_state->info = prev_output_state->info;
gst_caps_replace (&output_state->caps, prev_output_state->caps);
} else {
gst_video_info_init (&output_state->info);
gst_caps_replace (&output_state->caps, NULL);
}
}
if (prev_output_state) {
gst_video_codec_state_unref (prev_output_state);
}
}
gst_caps_unref (downstream_caps);
}
}
GST_INFO_OBJECT (self, "GL output: %s",
self->downstream_supports_gl ? "enabled" : "disabled");
if (klass->codec_info->gl_output_only && !self->downstream_supports_gl) {
GST_ERROR_OBJECT (self,
"Codec only supports GL output but downstream does not");
return FALSE;
}
if (self->downstream_supports_gl && self->surface) {
self->codec_config = AMC_CODEC_CONFIG_WITH_SURFACE;
} else if (self->downstream_supports_gl && !self->surface) {
int ret = TRUE;
self->surface = gst_amc_codec_new_surface_texture (&err);
if (!self->surface) {
GST_ELEMENT_ERROR_FROM_ERROR (self, err);
return FALSE;
}
if (!gst_amc_surface_texture_set_on_frame_available_callback
(self->surface, gst_amc_video_dec_on_frame_available, self, &err)) {
ret = FALSE;
goto done;
}
self->codec_config = AMC_CODEC_CONFIG_WITH_SURFACE;
done:
if (!ret) {
GST_ELEMENT_ERROR_FROM_ERROR (self, err);
return FALSE;
}
} else {
self->codec_config = AMC_CODEC_CONFIG_WITHOUT_SURFACE;
}
format_string = gst_amc_format_to_string (format, &err);
if (err)
GST_ELEMENT_WARNING_FROM_ERROR (self, err);
GST_DEBUG_OBJECT (self, "Configuring codec with format: %s",
GST_STR_NULL (format_string));
g_free (format_string);
if (!gst_amc_codec_configure (self->codec, format, self->surface, &err)) {
GST_ERROR_OBJECT (self, "Failed to configure codec");
GST_ELEMENT_ERROR_FROM_ERROR (self, err);
return FALSE;
}
gst_amc_format_free (format);
if (!gst_amc_codec_start (self->codec, &err)) {
GST_ERROR_OBJECT (self, "Failed to start codec");
GST_ELEMENT_ERROR_FROM_ERROR (self, err);
return FALSE;
}
self->started = TRUE;
self->input_state = gst_video_codec_state_ref (state);
self->input_state_changed = TRUE;
/* Start the srcpad loop again */
self->flushing = FALSE;
self->downstream_flow_ret = GST_FLOW_OK;
gst_pad_start_task (GST_VIDEO_DECODER_SRC_PAD (self),
(GstTaskFunction) gst_amc_video_dec_loop, decoder, NULL);
return TRUE;
}
static gboolean
gst_amc_video_dec_flush (GstVideoDecoder * decoder)
{
GstAmcVideoDec *self;
GError *err = NULL;
self = GST_AMC_VIDEO_DEC (decoder);
GST_DEBUG_OBJECT (self, "Flushing decoder");
if (!self->started) {
GST_DEBUG_OBJECT (self, "Codec not started yet");
return TRUE;
}
self->flushing = TRUE;
/* Wait until the srcpad loop is finished,
* unlock GST_VIDEO_DECODER_STREAM_LOCK to prevent deadlocks
* caused by using this lock from inside the loop function */
GST_VIDEO_DECODER_STREAM_UNLOCK (self);
GST_PAD_STREAM_LOCK (GST_VIDEO_DECODER_SRC_PAD (self));
GST_PAD_STREAM_UNLOCK (GST_VIDEO_DECODER_SRC_PAD (self));
GST_VIDEO_DECODER_STREAM_LOCK (self);
gst_amc_codec_flush (self->codec, &err);
if (err)
GST_ELEMENT_WARNING_FROM_ERROR (self, err);
self->flushing = FALSE;
/* Start the srcpad loop again */
self->last_upstream_ts = 0;
self->drained = TRUE;
self->downstream_flow_ret = GST_FLOW_OK;
gst_pad_start_task (GST_VIDEO_DECODER_SRC_PAD (self),
(GstTaskFunction) gst_amc_video_dec_loop, decoder, NULL);
GST_DEBUG_OBJECT (self, "Flushed decoder");
return TRUE;
}
static GstFlowReturn
gst_amc_video_dec_handle_frame (GstVideoDecoder * decoder,
GstVideoCodecFrame * frame)
{
GstAmcVideoDec *self;
gint idx;
GstAmcBuffer *buf;
GstAmcBufferInfo buffer_info;
guint offset = 0;
GstClockTime timestamp, duration, timestamp_offset = 0;
GstMapInfo minfo;
GError *err = NULL;
memset (&minfo, 0, sizeof (minfo));
self = GST_AMC_VIDEO_DEC (decoder);
GST_DEBUG_OBJECT (self, "Handling frame");
if (!self->started) {
GST_ERROR_OBJECT (self, "Codec not started yet");
gst_video_codec_frame_unref (frame);
return GST_FLOW_NOT_NEGOTIATED;
}
if (self->flushing)
goto flushing;
if (self->downstream_flow_ret != GST_FLOW_OK)
goto downstream_error;
timestamp = frame->pts;
duration = frame->duration;
gst_buffer_map (frame->input_buffer, &minfo, GST_MAP_READ);
while (offset < minfo.size) {
/* Make sure to release the base class stream lock, otherwise
* _loop() can't call _finish_frame() and we might block forever
* because no input buffers are released */
GST_VIDEO_DECODER_STREAM_UNLOCK (self);
/* Wait at most 100ms here, some codecs don't fail dequeueing if
* the codec is flushing, causing deadlocks during shutdown */
idx = gst_amc_codec_dequeue_input_buffer (self->codec, 100000, &err);
GST_VIDEO_DECODER_STREAM_LOCK (self);
if (idx < 0) {
if (self->flushing || self->downstream_flow_ret == GST_FLOW_FLUSHING) {
g_clear_error (&err);
goto flushing;
}
switch (idx) {
case INFO_TRY_AGAIN_LATER:
GST_DEBUG_OBJECT (self, "Dequeueing input buffer timed out");
continue; /* next try */
break;
case G_MININT:
GST_ERROR_OBJECT (self, "Failed to dequeue input buffer");
goto dequeue_error;
default:
g_assert_not_reached ();
break;
}
continue;
}
if (self->flushing) {
memset (&buffer_info, 0, sizeof (buffer_info));
gst_amc_codec_queue_input_buffer (self->codec, idx, &buffer_info, NULL);
goto flushing;
}
if (self->downstream_flow_ret != GST_FLOW_OK) {
memset (&buffer_info, 0, sizeof (buffer_info));
gst_amc_codec_queue_input_buffer (self->codec, idx, &buffer_info, &err);
if (err && !self->flushing)
GST_ELEMENT_WARNING_FROM_ERROR (self, err);
g_clear_error (&err);
goto downstream_error;
}
/* Now handle the frame */
/* Copy the buffer content in chunks of size as requested
* by the port */
buf = gst_amc_codec_get_input_buffer (self->codec, idx, &err);
if (err)
goto failed_to_get_input_buffer;
else if (!buf)
goto got_null_input_buffer;
memset (&buffer_info, 0, sizeof (buffer_info));
buffer_info.offset = 0;
buffer_info.size = MIN (minfo.size - offset, buf->size);
gst_amc_buffer_set_position_and_limit (buf, NULL, buffer_info.offset,
buffer_info.size);
orc_memcpy (buf->data, minfo.data + offset, buffer_info.size);
gst_amc_buffer_free (buf);
buf = NULL;
/* Interpolate timestamps if we're passing the buffer
* in multiple chunks */
if (offset != 0 && duration != GST_CLOCK_TIME_NONE) {
timestamp_offset = gst_util_uint64_scale (offset, duration, minfo.size);
}
if (timestamp != GST_CLOCK_TIME_NONE) {
buffer_info.presentation_time_us =
gst_util_uint64_scale (timestamp + timestamp_offset, 1, GST_USECOND);
self->last_upstream_ts = timestamp + timestamp_offset;
}
if (duration != GST_CLOCK_TIME_NONE)
self->last_upstream_ts += duration;
if (offset == 0) {
BufferIdentification *id =
buffer_identification_new (timestamp + timestamp_offset);
if (GST_VIDEO_CODEC_FRAME_IS_SYNC_POINT (frame))
buffer_info.flags |= BUFFER_FLAG_SYNC_FRAME;
gst_video_codec_frame_set_user_data (frame, id,
(GDestroyNotify) buffer_identification_free);
}
offset += buffer_info.size;
GST_DEBUG_OBJECT (self,
"Queueing buffer %d: size %d time %" G_GINT64_FORMAT
" flags 0x%08x", idx, buffer_info.size,
buffer_info.presentation_time_us, buffer_info.flags);
if (!gst_amc_codec_queue_input_buffer (self->codec, idx, &buffer_info,
&err)) {
if (self->flushing) {
g_clear_error (&err);
goto flushing;
}
goto queue_error;
}
self->drained = FALSE;
}
gst_buffer_unmap (frame->input_buffer, &minfo);
gst_video_codec_frame_unref (frame);
return self->downstream_flow_ret;
downstream_error:
{
GST_ERROR_OBJECT (self, "Downstream returned %s",
gst_flow_get_name (self->downstream_flow_ret));
if (minfo.data)
gst_buffer_unmap (frame->input_buffer, &minfo);
gst_video_codec_frame_unref (frame);
return self->downstream_flow_ret;
}
failed_to_get_input_buffer:
{
GST_ELEMENT_ERROR_FROM_ERROR (self, err);
if (minfo.data)
gst_buffer_unmap (frame->input_buffer, &minfo);
gst_video_codec_frame_unref (frame);
return GST_FLOW_ERROR;
}
got_null_input_buffer:
{
GST_ELEMENT_ERROR (self, LIBRARY, SETTINGS, (NULL),
("Got no input buffer"));
if (minfo.data)
gst_buffer_unmap (frame->input_buffer, &minfo);
gst_video_codec_frame_unref (frame);
return GST_FLOW_ERROR;
}
dequeue_error:
{
GST_ELEMENT_ERROR_FROM_ERROR (self, err);
if (minfo.data)
gst_buffer_unmap (frame->input_buffer, &minfo);
gst_video_codec_frame_unref (frame);
return GST_FLOW_ERROR;
}
queue_error:
{
GST_VIDEO_DECODER_ERROR_FROM_ERROR (self, err);
if (minfo.data)
gst_buffer_unmap (frame->input_buffer, &minfo);
gst_video_codec_frame_unref (frame);
return GST_FLOW_ERROR;
}
flushing:
{
GST_DEBUG_OBJECT (self, "Flushing -- returning FLUSHING");
if (minfo.data)
gst_buffer_unmap (frame->input_buffer, &minfo);
gst_video_codec_frame_unref (frame);
return GST_FLOW_FLUSHING;
}
}
static GstFlowReturn
gst_amc_video_dec_finish (GstVideoDecoder * decoder)
{
GstAmcVideoDec *self;
self = GST_AMC_VIDEO_DEC (decoder);
return gst_amc_video_dec_drain (self);
}
static GstFlowReturn
gst_amc_video_dec_drain (GstAmcVideoDec * self)
{
GstFlowReturn ret;
gint idx;
GError *err = NULL;
GST_DEBUG_OBJECT (self, "Draining codec");
if (!self->started) {
GST_DEBUG_OBJECT (self, "Codec not started yet");
return GST_FLOW_OK;
}
/* Don't send drain buffer twice, this doesn't work */
if (self->drained) {
GST_DEBUG_OBJECT (self, "Codec is drained already");
return GST_FLOW_OK;
}
/* Make sure to release the base class stream lock, otherwise
* _loop() can't call _finish_frame() and we might block forever
* because no input buffers are released */
GST_VIDEO_DECODER_STREAM_UNLOCK (self);
/* Send an EOS buffer to the component and let the base
* class drop the EOS event. We will send it later when
* the EOS buffer arrives on the output port.
* Wait at most 0.5s here. */
idx = gst_amc_codec_dequeue_input_buffer (self->codec, 500000, &err);
GST_VIDEO_DECODER_STREAM_LOCK (self);
if (idx >= 0) {
GstAmcBuffer *buf;
GstAmcBufferInfo buffer_info;
buf = gst_amc_codec_get_input_buffer (self->codec, idx, &err);
if (buf) {
GST_VIDEO_DECODER_STREAM_UNLOCK (self);
g_mutex_lock (&self->drain_lock);
self->draining = TRUE;
memset (&buffer_info, 0, sizeof (buffer_info));
buffer_info.size = 0;
buffer_info.presentation_time_us =
gst_util_uint64_scale (self->last_upstream_ts, 1, GST_USECOND);
buffer_info.flags |= BUFFER_FLAG_END_OF_STREAM;
gst_amc_buffer_set_position_and_limit (buf, NULL, 0, 0);
gst_amc_buffer_free (buf);
buf = NULL;
if (gst_amc_codec_queue_input_buffer (self->codec, idx, &buffer_info,
&err)) {
GST_DEBUG_OBJECT (self, "Waiting until codec is drained");
g_cond_wait (&self->drain_cond, &self->drain_lock);
GST_DEBUG_OBJECT (self, "Drained codec");
ret = GST_FLOW_OK;
} else {
GST_ERROR_OBJECT (self, "Failed to queue input buffer");
if (self->flushing) {
g_clear_error (&err);
ret = GST_FLOW_FLUSHING;
} else {
GST_ELEMENT_WARNING_FROM_ERROR (self, err);
ret = GST_FLOW_ERROR;
}
}
self->drained = TRUE;
self->draining = FALSE;
g_mutex_unlock (&self->drain_lock);
GST_VIDEO_DECODER_STREAM_LOCK (self);
} else {
GST_ERROR_OBJECT (self, "Failed to get buffer for EOS: %d", idx);
if (err)
GST_ELEMENT_WARNING_FROM_ERROR (self, err);
ret = GST_FLOW_ERROR;
}
} else {
GST_ERROR_OBJECT (self, "Failed to acquire buffer for EOS: %d", idx);
if (err)
GST_ELEMENT_WARNING_FROM_ERROR (self, err);
ret = GST_FLOW_ERROR;
}
return ret;
}
static gboolean
gst_amc_video_dec_src_query (GstVideoDecoder * bdec, GstQuery * query)
{
GstAmcVideoDec *self = GST_AMC_VIDEO_DEC (bdec);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:
{
if (gst_gl_handle_context_query ((GstElement *) self, query,
self->gl_display, self->gl_context, self->other_gl_context))
return TRUE;
break;
}
default:
break;
}
return GST_VIDEO_DECODER_CLASS (parent_class)->src_query (bdec, query);
}
static gboolean
_caps_are_rgba_with_gl_memory (GstCaps * caps)
{
GstVideoInfo info;
GstCapsFeatures *features;
if (!caps)
return FALSE;
if (!gst_video_info_from_caps (&info, caps))
return FALSE;
if (info.finfo->format != GST_VIDEO_FORMAT_RGBA)
return FALSE;
if (!(features = gst_caps_get_features (caps, 0)))
return FALSE;
return gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_GL_MEMORY);
}
static gboolean
_find_local_gl_context (GstAmcVideoDec * self)
{
if (gst_gl_query_local_gl_context (GST_ELEMENT (self), GST_PAD_SRC,
&self->gl_context))
return TRUE;
return FALSE;
}
static gboolean
gst_amc_video_dec_decide_allocation (GstVideoDecoder * bdec, GstQuery * query)
{
GstAmcVideoDec *self = GST_AMC_VIDEO_DEC (bdec);
gboolean need_pool = FALSE;
GstCaps *caps = NULL;
// GError *error = NULL;
if (!GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (bdec, query))
return FALSE;
self->downstream_supports_gl = FALSE;
gst_query_parse_allocation (query, &caps, &need_pool);
if (_caps_are_rgba_with_gl_memory (caps)) {
if (!gst_gl_ensure_element_data (self, &self->gl_display,
&self->other_gl_context))
return FALSE;
if (!_find_local_gl_context (self))
goto out;
#if 0
if (!self->gl_context) {
GST_OBJECT_LOCK (self->gl_display);
do {
if (self->gl_context) {
gst_object_unref (self->gl_context);
self->gl_context = NULL;
}
/* just get a GL context. we don't care */
self->gl_context =
gst_gl_display_get_gl_context_for_thread (self->gl_display, NULL);
if (!self->gl_context) {
if (!gst_gl_display_create_context (self->gl_display,
self->other_gl_context, &self->gl_context, &error)) {
GST_OBJECT_UNLOCK (mix->display);
goto context_error;
}
}
} while (!gst_gl_display_add_context (self->gl_display,
self->gl_context));
GST_OBJECT_UNLOCK (self->gl_display);
}
#endif
self->downstream_supports_gl = TRUE;
}
out:
return gst_amc_video_dec_check_codec_config (self);
#if 0
context_error:
{
GST_ELEMENT_ERROR (self, RESOURCE, NOT_FOUND, ("%s", error->message),
(NULL));
g_clear_error (&error);
return FALSE;
}
#endif
}
static void
gst_amc_video_dec_on_frame_available (GstAmcSurfaceTexture * texture,
gpointer user_data)
{
GstAmcVideoDec *self = (GstAmcVideoDec *) user_data;
/* apparently we can be called after the decoder has been closed */
if (!self)
return;
g_mutex_lock (&self->gl_lock);
self->gl_ready_frame_count++;
GST_LOG_OBJECT (self, "frame %u available", self->gl_ready_frame_count);
g_cond_broadcast (&self->gl_cond);
g_mutex_unlock (&self->gl_lock);
}
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