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gstreamer/sys/androidmedia/gstamcvideodec.c
Luis de Bethencourt 1ba4d63d6a amcvideodec: use GST_STIME_ARGS for GstClockTimeDiff 
No need to manually handle negative value of deadline, GST_STIME_ARGS does
exactly this.
2015-11-03 15:00:28 +00:00

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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>
*
* 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/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"
#include "gstamc2dtexturerenderer.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
/* Assume the device is able to decode at 30fps by default */
#define GST_AMC_VIDEO_DEC_ON_FRAME_AVAILABLE_DEFAULT_TIMEOUT (33 * G_TIME_SPAN_MILLISECOND)
#if GLIB_SIZEOF_VOID_P == 8
#define JLONG_TO_GST_AMC_VIDEO_DEC(value) (GstAmcVideoDec *)(value)
#define GST_AMC_VIDEO_DEC_TO_JLONG(value) (jlong)(value)
#else
#define JLONG_TO_GST_AMC_VIDEO_DEC(value) (GstAmcVideoDec *)(jint)(value)
#define GST_AMC_VIDEO_DEC_TO_JLONG(value) (jlong)(jint)(value)
#endif
typedef struct _BufferIdentification BufferIdentification;
struct _BufferIdentification
{
guint64 timestamp;
};
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 (JNIEnv * env, jobject thiz,
long long context, jobject surfaceTexture);
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 volatile 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-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 (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_GL_MEMORY, "RGBA"));
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",
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->on_frame_available_lock);
g_cond_init (&self->on_frame_available_cond);
self->on_frame_available = FALSE;
}
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, &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->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->codec = NULL;
self->codec_config = AMC_CODEC_CONFIG_NONE;
if (self->surface) {
gst_object_unref (self->surface);
self->surface = NULL;
}
self->started = FALSE;
self->flushing = TRUE;
self->downstream_supports_gl = FALSE;
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_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;
GST_DEBUG_OBJECT (element, "Freeing GL context: %" GST_PTR_FORMAT,
self->gl_context);
if (self->gl_context) {
gst_object_unref (self->gl_context);
self->gl_context = NULL;
}
GST_DEBUG_OBJECT (element, "Freeing GL renderer: %p", self->renderer);
if (self->renderer) {
gst_amc_2d_texture_renderer_free (self->renderer);
self->renderer = NULL;
}
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 && timestamp == 0) || 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, "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;
}
if (!gst_amc_format_get_int (format, "crop-left", &crop_left, &err) ||
!gst_amc_format_get_int (format, "crop-right", &crop_right, &err) ||
!gst_amc_format_get_int (format, "crop-top", &crop_top, &err) ||
!gst_amc_format_get_int (format, "crop-bottom", &crop_bottom, &err)) {
GST_ERROR_OBJECT (self, "Failed to get crop rectangle: %s", err->message);
g_clear_error (&err);
return FALSE;
}
if (width == 0 || height == 0) {
GST_ERROR_OBJECT (self, "Height or width not set");
return FALSE;
}
if (crop_bottom)
height = height - (height - crop_bottom - 1);
if (crop_top)
height = height - crop_top;
if (crop_right)
width = width - (width - crop_right - 1);
if (crop_left)
width = width - crop_left;
mime = caps_to_mime (self->input_state->caps);
if (!mime) {
GST_ERROR_OBJECT (self, "Failed to convert caps to mime");
return FALSE;
}
gst_format =
gst_amc_color_format_to_video_format (klass->codec_info, mime,
color_format);
if (self->codec_config == AMC_CODEC_CONFIG_WITH_SURFACE) {
gst_format = GST_VIDEO_FORMAT_RGBA;
}
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);
}
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));
}
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);
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;
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 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);
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);
buf = gst_amc_codec_get_output_buffer (self->codec, idx, &err);
if (!buf)
goto failed_to_get_output_buffer;
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 (self->codec_config == AMC_CODEC_CONFIG_WITH_SURFACE
&& buffer_info.size > 0) {
GstMemory *mem;
GstBuffer *outbuf;
gint64 timeout;
gint64 end_time;
GstVideoCodecState *state;
outbuf =
gst_video_decoder_allocate_output_buffer (GST_VIDEO_DECODER (self));
state = gst_video_decoder_get_output_state (GST_VIDEO_DECODER (self));
if (state && state->info.fps_n > 0 && state->info.fps_d > 0) {
timeout =
gst_util_uint64_scale_int (G_TIME_SPAN_SECOND, state->info.fps_d,
state->info.fps_n);
} else {
timeout = GST_AMC_VIDEO_DEC_ON_FRAME_AVAILABLE_DEFAULT_TIMEOUT;
}
gst_video_codec_state_unref (state);
mem = gst_buffer_peek_memory (outbuf, 0);
if (gst_is_gl_memory (mem)) {
GstGLMemory *gl_mem = (GstGLMemory *) mem;
if (!self->renderer) {
self->renderer =
gst_amc_2d_texture_renderer_new (self->gl_context,
self->surface->texture, self->width, self->height);
}
release_buffer = FALSE;
self->on_frame_available = FALSE;
g_mutex_lock (&self->on_frame_available_lock);
/* Render the frame into the surface */
if (!gst_amc_codec_release_output_buffer (self->codec, idx, TRUE, &err)) {
gst_buffer_unref (outbuf);
GST_ERROR_OBJECT (self, "Failed to render buffer, index %d", idx);
GST_ELEMENT_ERROR_FROM_ERROR (self, err);
goto gl_output_error;
}
/* Wait for the frame to become available */
end_time = g_get_monotonic_time () + timeout;
g_cond_wait_until (&self->on_frame_available_cond,
&self->on_frame_available_lock, end_time);
g_mutex_unlock (&self->on_frame_available_lock);
/* Now that the frame is available, we can render it to a 2D texture.
*
* Calling updateTexImage seems necessary even if no frame is available
* otherwise it could happen that the onFrameAvailable callback is not
* executed anymore. */
if (!gst_amc_2d_texture_renderer_render (self->renderer,
gl_mem->tex_id, &err)) {
gst_buffer_unref (outbuf);
GST_ERROR_OBJECT (self, "Failed to render to a 2D texture");
GST_ELEMENT_ERROR_FROM_ERROR (self, err);
goto gl_output_error;
}
} else {
GST_ERROR_OBJECT (self, "Wrong memory type for GL output mode");
goto format_error;
}
if (self->on_frame_available) {
if (frame) {
frame->output_buffer = outbuf;
flow_ret =
gst_video_decoder_finish_frame (GST_VIDEO_DECODER (self), frame);
} else {
/* 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_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 {
GST_WARNING_OBJECT (self, "No frame available after "
"%" G_GINT64_FORMAT "ms", timeout / G_TIME_SPAN_MILLISECOND);
if (frame) {
flow_ret =
gst_video_decoder_drop_frame (GST_VIDEO_DECODER (self), frame);
}
gst_buffer_unref (outbuf);
}
} 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);
}
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_ERROR (self, STREAM, FAILED,
("Internal data stream error."), ("stream stopped, reason %s",
gst_flow_get_name (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;
}
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:
{
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 jobject
gst_amc_video_dec_new_on_frame_available_listener (GstAmcVideoDec * decoder,
JNIEnv * env, GError ** err)
{
jobject listener = NULL;
jclass listener_cls = NULL;
jmethodID constructor_id = 0;
jmethodID set_context_id = 0;
JNINativeMethod amcOnFrameAvailableListener = {
"native_onFrameAvailable",
"(JLandroid/graphics/SurfaceTexture;)V",
(void *) gst_amc_video_dec_on_frame_available,
};
listener_cls =
gst_amc_jni_get_application_class (env,
"org/freedesktop/gstreamer/androidmedia/GstAmcOnFrameAvailableListener",
err);
if (!listener_cls) {
return FALSE;
}
(*env)->RegisterNatives (env, listener_cls, &amcOnFrameAvailableListener, 1);
if ((*env)->ExceptionCheck (env)) {
(*env)->ExceptionClear (env);
goto done;
}
constructor_id =
gst_amc_jni_get_method_id (env, err, listener_cls, "<init>", "()V");
if (!constructor_id) {
goto done;
}
set_context_id =
gst_amc_jni_get_method_id (env, err, listener_cls, "setContext", "(J)V");
if (!set_context_id) {
goto done;
}
listener =
gst_amc_jni_new_object (env, err, TRUE, listener_cls, constructor_id);
if (!listener) {
goto done;
}
if (!gst_amc_jni_call_void_method (env, err, listener,
set_context_id, GST_AMC_VIDEO_DEC_TO_JLONG (decoder))) {
gst_amc_jni_object_unref (env, listener);
listener = NULL;
}
done:
gst_amc_jni_object_unref (env, listener_cls);
return listener;
}
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;
jobject jsurface = 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_memdup (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_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) {
jsurface = self->surface->jobject;
} else if (self->downstream_supports_gl && !self->surface) {
int ret = TRUE;
JNIEnv *env = NULL;
jobject listener = NULL;
GstAmcSurfaceTexture *surface_texture = NULL;
env = gst_amc_jni_get_env ();
surface_texture = gst_amc_surface_texture_new (&err);
if (!surface_texture) {
GST_ELEMENT_ERROR_FROM_ERROR (self, err);
return FALSE;
}
listener =
gst_amc_video_dec_new_on_frame_available_listener (self, env, &err);
if (!listener) {
ret = FALSE;
goto done;
}
if (!gst_amc_surface_texture_set_on_frame_available_listener
(surface_texture, listener, &err)) {
ret = FALSE;
goto done;
}
self->surface = gst_amc_surface_new (surface_texture, &err);
jsurface = self->surface->jobject;
done:
g_object_unref (surface_texture);
gst_amc_jni_object_unref (env, listener);
if (!ret) {
GST_ELEMENT_ERROR_FROM_ERROR (self, err);
return FALSE;
}
}
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, jsurface, 0, &err)) {
GST_ERROR_OBJECT (self, "Failed to configure codec");
GST_ELEMENT_ERROR_FROM_ERROR (self, err);
return FALSE;
}
if (jsurface) {
self->codec_config = AMC_CODEC_CONFIG_WITH_SURFACE;
} else {
self->codec_config = AMC_CODEC_CONFIG_WITHOUT_SURFACE;
}
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 (!buf)
goto failed_to_get_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;
}
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);
gboolean ret;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:
{
const gchar *context_type;
GstContext *context, *old_context;
ret = gst_gl_handle_context_query ((GstElement *) self, query,
&self->gl_display, &self->other_gl_context);
gst_query_parse_context_type (query, &context_type);
if (g_strcmp0 (context_type, "gst.gl.local_context") == 0) {
GstStructure *s;
gst_query_parse_context (query, &old_context);
if (old_context)
context = gst_context_copy (old_context);
else
context = gst_context_new ("gst.gl.local_context", FALSE);
s = gst_context_writable_structure (context);
gst_structure_set (s, "context", GST_GL_TYPE_CONTEXT, self->gl_context,
NULL);
gst_query_set_context (query, context);
gst_context_unref (context);
ret = self->gl_context != NULL;
}
GST_LOG_OBJECT (self, "context query of type %s %i", context_type, ret);
if (ret)
return ret;
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)
{
GstQuery *query;
GstContext *context;
const GstStructure *s;
if (self->gl_context)
return TRUE;
query = gst_query_new_context ("gst.gl.local_context");
if (!self->gl_context
&& gst_gl_run_query (GST_ELEMENT (self), query, GST_PAD_SRC)) {
gst_query_parse_context (query, &context);
if (context) {
s = gst_context_get_structure (context);
gst_structure_get (s, "context", GST_GL_TYPE_CONTEXT, &self->gl_context,
NULL);
}
}
GST_DEBUG_OBJECT (self, "found local context %p", self->gl_context);
gst_query_unref (query);
if (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
if (self->renderer) {
gst_amc_2d_texture_renderer_free (self->renderer);
self->renderer = NULL;
}
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 (JNIEnv * env, jobject thiz,
long long context, jobject surfaceTexture)
{
GstAmcVideoDec *dec = JLONG_TO_GST_AMC_VIDEO_DEC (context);
g_mutex_lock (&dec->on_frame_available_lock);
dec->on_frame_available = TRUE;
g_cond_signal (&dec->on_frame_available_cond);
g_mutex_unlock (&dec->on_frame_available_lock);
}
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