mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-11-18 15:51:11 +00:00
Code Issues 1 Projects Releases Wiki Activity
gstreamer/sys/androidmedia/gstamcvideodec.c

1761 lines
53 KiB
C
Raw Blame History

/*
* 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>
*
* 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/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"
GST_DEBUG_CATEGORY_STATIC (gst_amc_video_dec_debug_category);
#define GST_CAT_DEFAULT gst_amc_video_dec_debug_category
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 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_reset (GstVideoDecoder * decoder,
gboolean hard);
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 GstFlowReturn gst_amc_video_dec_drain (GstAmcVideoDec * self,
gboolean at_eos);
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 GstCaps *
create_sink_caps (const GstAmcCodecInfo * codec_info)
{
GstCaps *ret;
gint i;
ret = gst_caps_new_empty ();
for (i = 0; i < codec_info->n_supported_types; i++) {
const GstAmcCodecType *type = &codec_info->supported_types[i];
if (strcmp (type->mime, "video/mp4v-es") == 0) {
gint j;
GstStructure *tmp, *tmp2;
gboolean have_profile_level = FALSE;
tmp = gst_structure_new ("video/mpeg",
"width", GST_TYPE_INT_RANGE, 16, 4096,
"height", GST_TYPE_INT_RANGE, 16, 4096,
"framerate", GST_TYPE_FRACTION_RANGE,
0, 1, G_MAXINT, 1,
"mpegversion", G_TYPE_INT, 4,
"systemstream", G_TYPE_BOOLEAN, FALSE,
"parsed", G_TYPE_BOOLEAN, TRUE, NULL);
if (type->n_profile_levels) {
for (j = type->n_profile_levels - 1; j >= 0; j--) {
const gchar *profile, *level;
gint k;
GValue va = { 0, };
GValue v = { 0, };
g_value_init (&va, GST_TYPE_LIST);
g_value_init (&v, G_TYPE_STRING);
profile =
gst_amc_mpeg4_profile_to_string (type->profile_levels[j].profile);
if (!profile) {
GST_ERROR ("Unable to map MPEG4 profile 0x%08x",
type->profile_levels[j].profile);
continue;
}
for (k = 1; k <= type->profile_levels[j].level && k != 0; k <<= 1) {
level = gst_amc_mpeg4_level_to_string (k);
if (!level)
continue;
g_value_set_string (&v, level);
gst_value_list_append_value (&va, &v);
g_value_reset (&v);
}
tmp2 = gst_structure_copy (tmp);
gst_structure_set (tmp2, "profile", G_TYPE_STRING, profile, NULL);
gst_structure_set_value (tmp2, "level", &va);
g_value_unset (&va);
g_value_unset (&v);
ret = gst_caps_merge_structure (ret, tmp2);
have_profile_level = TRUE;
}
}
if (!have_profile_level) {
ret = gst_caps_merge_structure (ret, tmp);
} else {
gst_structure_free (tmp);
}
} else if (strcmp (type->mime, "video/3gpp") == 0) {
gint j;
GstStructure *tmp, *tmp2;
gboolean have_profile_level = FALSE;
tmp = gst_structure_new ("video/x-h263",
"width", GST_TYPE_INT_RANGE, 16, 4096,
"height", GST_TYPE_INT_RANGE, 16, 4096,
"framerate", GST_TYPE_FRACTION_RANGE,
0, 1, G_MAXINT, 1,
"parsed", G_TYPE_BOOLEAN, TRUE,
"variant", G_TYPE_STRING, "itu", NULL);
if (type->n_profile_levels) {
for (j = type->n_profile_levels - 1; j >= 0; j--) {
gint profile, level;
gint k;
GValue va = { 0, };
GValue v = { 0, };
g_value_init (&va, GST_TYPE_LIST);
g_value_init (&v, G_TYPE_UINT);
profile =
gst_amc_h263_profile_to_gst_id (type->profile_levels[j].profile);
if (profile == -1) {
GST_ERROR ("Unable to map h263 profile 0x%08x",
type->profile_levels[j].profile);
continue;
}
for (k = 1; k <= type->profile_levels[j].level && k != 0; k <<= 1) {
level = gst_amc_h263_level_to_gst_id (k);
if (level == -1)
continue;
g_value_set_uint (&v, level);
gst_value_list_append_value (&va, &v);
g_value_reset (&v);
}
tmp2 = gst_structure_copy (tmp);
gst_structure_set (tmp2, "profile", G_TYPE_UINT, profile, NULL);
gst_structure_set_value (tmp2, "level", &va);
g_value_unset (&va);
g_value_unset (&v);
ret = gst_caps_merge_structure (ret, tmp2);
have_profile_level = TRUE;
}
}
if (!have_profile_level) {
ret = gst_caps_merge_structure (ret, tmp);
} else {
gst_structure_free (tmp);
}
} else if (strcmp (type->mime, "video/avc") == 0) {
gint j;
GstStructure *tmp, *tmp2;
gboolean have_profile_level = FALSE;
tmp = gst_structure_new ("video/x-h264",
"width", GST_TYPE_INT_RANGE, 16, 4096,
"height", GST_TYPE_INT_RANGE, 16, 4096,
"framerate", GST_TYPE_FRACTION_RANGE,
0, 1, G_MAXINT, 1,
"parsed", G_TYPE_BOOLEAN, TRUE,
"stream-format", G_TYPE_STRING, "byte-stream",
"alignment", G_TYPE_STRING, "au", NULL);
if (type->n_profile_levels) {
for (j = type->n_profile_levels - 1; j >= 0; j--) {
const gchar *profile, *alternative = NULL, *level;
gint k;
GValue va = { 0, };
GValue v = { 0, };
g_value_init (&va, GST_TYPE_LIST);
g_value_init (&v, G_TYPE_STRING);
profile =
gst_amc_avc_profile_to_string (type->profile_levels[j].profile,
&alternative);
if (!profile) {
GST_ERROR ("Unable to map H264 profile 0x%08x",
type->profile_levels[j].profile);
continue;
}
for (k = 1; k <= type->profile_levels[j].level && k != 0; k <<= 1) {
level = gst_amc_avc_level_to_string (k);
if (!level)
continue;
g_value_set_string (&v, level);
gst_value_list_append_value (&va, &v);
g_value_reset (&v);
}
tmp2 = gst_structure_copy (tmp);
gst_structure_set (tmp2, "profile", G_TYPE_STRING, profile, NULL);
gst_structure_set_value (tmp2, "level", &va);
if (!alternative)
g_value_unset (&va);
g_value_unset (&v);
ret = gst_caps_merge_structure (ret, tmp2);
if (alternative) {
tmp2 = gst_structure_copy (tmp);
gst_structure_set (tmp2, "profile", G_TYPE_STRING, alternative,
NULL);
gst_structure_set_value (tmp2, "level", &va);
g_value_unset (&va);
ret = gst_caps_merge_structure (ret, tmp2);
}
have_profile_level = TRUE;
}
}
if (!have_profile_level) {
ret = gst_caps_merge_structure (ret, tmp);
} else {
gst_structure_free (tmp);
}
} else if (strcmp (type->mime, "video/x-vnd.on2.vp8") == 0) {
GstStructure *tmp;
tmp = gst_structure_new ("video/x-vp8",
"width", GST_TYPE_INT_RANGE, 16, 4096,
"height", GST_TYPE_INT_RANGE, 16, 4096,
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
ret = gst_caps_merge_structure (ret, tmp);
} else if (strcmp (type->mime, "video/mpeg2") == 0) {
GstStructure *tmp;
tmp = gst_structure_new ("video/mpeg",
"width", GST_TYPE_INT_RANGE, 16, 4096,
"height", GST_TYPE_INT_RANGE, 16, 4096,
"framerate", GST_TYPE_FRACTION_RANGE,
0, 1, G_MAXINT, 1,
"mpegversion", GST_TYPE_INT_RANGE, 1, 2,
"systemstream", G_TYPE_BOOLEAN, FALSE,
"parsed", G_TYPE_BOOLEAN, TRUE, NULL);
ret = gst_caps_merge_structure (ret, tmp);
} else {
GST_WARNING ("Unsupported mimetype '%s'", type->mime);
}
}
return ret;
}
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-vp8") == 0) {
return "video/x-vnd.on2.vp8";
}
return NULL;
}
static GstCaps *
create_src_caps (const GstAmcCodecInfo * codec_info)
{
GstCaps *ret;
gint i;
ret = gst_caps_new_empty ();
for (i = 0; i < codec_info->n_supported_types; i++) {
const GstAmcCodecType *type = &codec_info->supported_types[i];
gint j;
for (j = 0; j < type->n_color_formats; j++) {
GstVideoFormat format;
GstCaps *tmp;
format = gst_amc_color_format_to_video_format (type->color_formats[j]);
if (format == GST_VIDEO_FORMAT_UNKNOWN) {
GST_WARNING ("Unknown color format 0x%08x", type->color_formats[j]);
continue;
}
tmp = gst_caps_new_simple ("video/x-raw",
"format", G_TYPE_STRING, gst_video_format_to_string (format),
"width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"height", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
ret = gst_caps_merge (ret, tmp);
}
}
return ret;
}
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 *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;
/* Add pad templates */
caps = create_sink_caps (codec_info);
templ = gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, caps);
gst_element_class_add_pad_template (element_class, templ);
gst_caps_unref (caps);
caps = create_src_caps (codec_info);
templ = gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, caps);
gst_element_class_add_pad_template (element_class, templ);
gst_caps_unref (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);
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->reset = GST_DEBUG_FUNCPTR (gst_amc_video_dec_reset);
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);
}
static void
gst_amc_video_dec_init (GstAmcVideoDec * self)
{
gst_video_decoder_set_packetized (GST_VIDEO_DECODER (self), TRUE);
g_mutex_init (&self->drain_lock);
g_cond_init (&self->drain_cond);
}
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);
GST_DEBUG_OBJECT (self, "Opening decoder");
self->codec = gst_amc_codec_new (klass->codec_info->name);
if (!self->codec)
return FALSE;
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)
gst_amc_codec_free (self->codec);
self->codec = NULL;
self->started = FALSE;
self->flushing = TRUE;
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 GstStateChangeReturn
gst_amc_video_dec_change_state (GstElement * element, GstStateChange transition)
{
GstAmcVideoDec *self;
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
g_return_val_if_fail (GST_IS_AMC_VIDEO_DEC (element),
GST_STATE_CHANGE_FAILURE);
self = GST_AMC_VIDEO_DEC (element);
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;
gst_amc_codec_flush (self->codec);
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;
case GST_STATE_CHANGE_READY_TO_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_set_src_caps (GstAmcVideoDec * self, GstAmcFormat * format)
{
GstVideoCodecState *output_state;
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);
if (!gst_amc_format_get_int (format, "color-format", &color_format) ||
!gst_amc_format_get_int (format, "width", &width) ||
!gst_amc_format_get_int (format, "height", &height)) {
GST_ERROR_OBJECT (self, "Failed to get output format metadata");
return FALSE;
}
if (strcmp (klass->codec_info->name, "OMX.k3.video.decoder.avc") == 0 &&
color_format == COLOR_FormatYCbYCr)
color_format = COLOR_TI_FormatYUV420PackedSemiPlanar;
if (!gst_amc_format_get_int (format, "stride", &stride) ||
!gst_amc_format_get_int (format, "slice-height", &slice_height)) {
GST_ERROR_OBJECT (self, "Failed to get stride and slice-height");
return FALSE;
}
if (!gst_amc_format_get_int (format, "crop-left", &crop_left) ||
!gst_amc_format_get_int (format, "crop-right", &crop_right) ||
!gst_amc_format_get_int (format, "crop-top", &crop_top) ||
!gst_amc_format_get_int (format, "crop-bottom", &crop_bottom)) {
GST_ERROR_OBJECT (self, "Failed to get crop rectangle");
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;
gst_format = gst_amc_color_format_to_video_format (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);
self->format = gst_format;
self->color_format = color_format;
self->height = height;
self->width = width;
self->stride = stride;
self->slice_height = slice_height;
self->crop_left = crop_left;
self->crop_right = crop_right;
self->crop_top = crop_top;
self->crop_bottom = crop_bottom;
gst_video_decoder_negotiate (GST_VIDEO_DECODER (self));
gst_video_codec_state_unref (output_state);
self->input_state_changed = FALSE;
return TRUE;
}
/* The weird handling of cropping, alignment and everything is taken from
* platform/frameworks/media/libstagefright/colorconversion/ColorConversion.cpp
*/
static gboolean
gst_amc_video_dec_fill_buffer (GstAmcVideoDec * self, gint idx,
const GstAmcBufferInfo * buffer_info, GstBuffer * outbuf)
{
GstAmcVideoDecClass *klass = GST_AMC_VIDEO_DEC_GET_CLASS (self);
GstAmcBuffer *buf = &self->output_buffers[idx];
GstVideoCodecState *state =
gst_video_decoder_get_output_state (GST_VIDEO_DECODER (self));
GstVideoInfo *info = &state->info;
gboolean ret = FALSE;
if (idx >= self->n_output_buffers) {
GST_ERROR_OBJECT (self, "Invalid output buffer index %d of %d",
idx, self->n_output_buffers);
goto done;
}
/* Same video format */
if (buffer_info->size == gst_buffer_get_size (outbuf)) {
GstMapInfo minfo;
GST_DEBUG_OBJECT (self, "Buffer sizes equal, doing fast copy");
gst_buffer_map (outbuf, &minfo, GST_MAP_WRITE);
orc_memcpy (minfo.data, buf->data + buffer_info->offset, buffer_info->size);
gst_buffer_unmap (outbuf, &minfo);
ret = TRUE;
goto done;
}
GST_DEBUG_OBJECT (self,
"Sizes not equal (%d vs %d), doing slow line-by-line copying",
buffer_info->size, gst_buffer_get_size (outbuf));
/* Different video format, try to convert */
switch (self->color_format) {
case COLOR_FormatYUV420Planar:{
GstVideoFrame vframe;
gint i, j, height;
guint8 *src, *dest;
gint stride, slice_height;
gint src_stride, dest_stride;
gint row_length;
stride = self->stride;
if (stride == 0) {
GST_ERROR_OBJECT (self, "Stride not set");
goto done;
}
slice_height = self->slice_height;
if (slice_height == 0) {
/* NVidia Tegra 3 on Nexus 7 does not set this */
if (g_str_has_prefix (klass->codec_info->name, "OMX.Nvidia.")) {
slice_height = GST_ROUND_UP_32 (self->height);
} else {
GST_ERROR_OBJECT (self, "Slice height not set");
goto done;
}
}
gst_video_frame_map (&vframe, info, outbuf, GST_MAP_WRITE);
for (i = 0; i < 3; i++) {
if (i == 0) {
src_stride = stride;
dest_stride = GST_VIDEO_FRAME_COMP_STRIDE (&vframe, i);
} else {
src_stride = (stride + 1) / 2;
dest_stride = GST_VIDEO_FRAME_COMP_STRIDE (&vframe, i);
}
src = buf->data + buffer_info->offset;
if (i == 0) {
src += self->crop_top * stride;
src += self->crop_left;
row_length = self->width;
} else if (i > 0) {
/* skip the Y plane */
src += slice_height * stride;
/* crop_top/crop_left divided by two
* because one byte of the U/V planes
* corresponds to two pixels horizontally/vertically */
src += self->crop_top / 2 * src_stride;
src += self->crop_left / 2;
row_length = (self->width + 1) / 2;
}
if (i == 2) {
/* skip the U plane */
src += ((slice_height + 1) / 2) * ((stride + 1) / 2);
}
dest = GST_VIDEO_FRAME_COMP_DATA (&vframe, i);
height = GST_VIDEO_FRAME_COMP_HEIGHT (&vframe, i);
for (j = 0; j < height; j++) {
orc_memcpy (dest, src, row_length);
src += src_stride;
dest += dest_stride;
}
}
gst_video_frame_unmap (&vframe);
ret = TRUE;
break;
}
case COLOR_TI_FormatYUV420PackedSemiPlanar:
case COLOR_TI_FormatYUV420PackedSemiPlanarInterlaced:{
gint i, j, height;
guint8 *src, *dest;
gint src_stride, dest_stride;
gint row_length;
GstVideoFrame vframe;
/* This should always be set */
if (self->stride == 0 || self->slice_height == 0) {
GST_ERROR_OBJECT (self, "Stride or slice height not set");
goto done;
}
/* FIXME: This does not work for odd widths or heights
* but might as well be a bug in the codec */
gst_video_frame_map (&vframe, info, outbuf, GST_MAP_WRITE);
for (i = 0; i < 2; i++) {
if (i == 0) {
src_stride = self->stride;
dest_stride = GST_VIDEO_FRAME_COMP_STRIDE (&vframe, i);
} else {
src_stride = GST_ROUND_UP_2 (self->stride);
dest_stride = GST_VIDEO_FRAME_COMP_STRIDE (&vframe, i);
}
src = buf->data + buffer_info->offset;
if (i == 0) {
row_length = self->width;
} else if (i == 1) {
src += (self->slice_height - self->crop_top / 2) * self->stride;
row_length = GST_ROUND_UP_2 (self->width);
}
dest = GST_VIDEO_FRAME_COMP_DATA (&vframe, i);
height = GST_VIDEO_FRAME_COMP_HEIGHT (&vframe, i);
for (j = 0; j < height; j++) {
orc_memcpy (dest, src, row_length);
src += src_stride;
dest += dest_stride;
}
}
gst_video_frame_unmap (&vframe);
ret = TRUE;
break;
}
case COLOR_QCOM_FormatYUV420SemiPlanar:
case COLOR_FormatYUV420SemiPlanar:{
gint i, j, height;
guint8 *src, *dest;
gint src_stride, dest_stride, fixed_stride;
gint row_length;
GstVideoFrame vframe;
/* This should always be set */
if (self->stride == 0 || self->slice_height == 0) {
GST_ERROR_OBJECT (self, "Stride or slice height not set");
goto done;
}
/* Samsung Galaxy S3 seems to report wrong strides.
I.e. BigBuckBunny 854x480 H264 reports a stride of 864 when it is
actually 854, so we use width instead of stride here.
This is obviously bound to break in the future. */
if (g_str_has_prefix (klass->codec_info->name, "OMX.SEC.")) {
fixed_stride = self->width;
} else {
fixed_stride = self->stride;
}
gst_video_frame_map (&vframe, info, outbuf, GST_MAP_WRITE);
for (i = 0; i < 2; i++) {
src_stride = fixed_stride;
dest_stride = GST_VIDEO_FRAME_COMP_STRIDE (&vframe, i);
src = buf->data + buffer_info->offset;
if (i == 0) {
src += self->crop_top * fixed_stride;
src += self->crop_left;
row_length = self->width;
} else if (i == 1) {
src += self->slice_height * fixed_stride;
src += self->crop_top * fixed_stride;
src += self->crop_left;
row_length = self->width;
}
dest = GST_VIDEO_FRAME_COMP_DATA (&vframe, i);
height = GST_VIDEO_FRAME_COMP_HEIGHT (&vframe, i);
for (j = 0; j < height; j++) {
orc_memcpy (dest, src, row_length);
src += src_stride;
dest += dest_stride;
}
}
gst_video_frame_unmap (&vframe);
ret = TRUE;
break;
}
default:
GST_ERROR_OBJECT (self, "Unsupported color format %d",
self->color_format);
goto done;
break;
}
done:
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;
GstAmcBufferInfo buffer_info;
gint idx;
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);
GST_VIDEO_DECODER_STREAM_LOCK (self);
/*} */
if (idx < 0) {
if (self->flushing || self->downstream_flow_ret == GST_FLOW_FLUSHING)
goto flushing;
switch (idx) {
case INFO_OUTPUT_BUFFERS_CHANGED:{
GST_DEBUG_OBJECT (self, "Output buffers have changed");
if (self->output_buffers)
gst_amc_codec_free_buffers (self->output_buffers,
self->n_output_buffers);
self->output_buffers =
gst_amc_codec_get_output_buffers (self->codec,
&self->n_output_buffers);
if (!self->output_buffers)
goto get_output_buffers_error;
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);
if (!format)
goto format_error;
format_string = gst_amc_format_to_string (format);
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);
if (self->output_buffers)
gst_amc_codec_free_buffers (self->output_buffers,
self->n_output_buffers);
self->output_buffers =
gst_amc_codec_get_output_buffers (self->codec,
&self->n_output_buffers);
if (!self->output_buffers)
goto get_output_buffers_error;
goto retry;
break;
}
case INFO_TRY_AGAIN_LATER:
GST_DEBUG_OBJECT (self, "Dequeueing output buffer timed out");
goto retry;
break;
case G_MININT:
GST_ERROR_OBJECT (self, "Failure dequeueing input buffer");
goto dequeue_error;
break;
default:
g_assert_not_reached ();
break;
}
goto retry;
}
GST_DEBUG_OBJECT (self,
"Got output buffer at index %d: size %d time %" G_GINT64_FORMAT
" flags 0x%08x", idx, 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);
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_TIME_FORMAT ")",
GST_TIME_ARGS (-deadline));
flow_ret = gst_video_decoder_drop_frame (GST_VIDEO_DECODER (self), frame);
} else if (!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, idx, &buffer_info, outbuf)) {
gst_buffer_unref (outbuf);
if (!gst_amc_codec_release_output_buffer (self->codec, idx))
GST_ERROR_OBJECT (self, "Failed to release output buffer index %d",
idx);
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 (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");
goto flow_error;
}
if (!gst_amc_video_dec_fill_buffer (self, idx, &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))
GST_ERROR_OBJECT (self, "Failed to release output buffer index %d",
idx);
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 (!gst_amc_codec_release_output_buffer (self->codec, idx))
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 (self, LIBRARY, FAILED, (NULL),
("Failed to dequeue 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);
return;
}
get_output_buffers_error:
{
GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL),
("Failed to get output buffers"));
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);
return;
}
format_error:
{
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);
return;
}
failed_release:
{
GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL),
("Failed to release output buffer index %d", idx));
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);
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_NOT_LINKED || 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));
}
GST_VIDEO_DECODER_STREAM_UNLOCK (self);
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);
return;
}
}
static gboolean
gst_amc_video_dec_start (GstVideoDecoder * decoder)
{
GstAmcVideoDec *self;
self = GST_AMC_VIDEO_DEC (decoder);
self->last_upstream_ts = 0;
self->eos = FALSE;
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;
self = GST_AMC_VIDEO_DEC (decoder);
GST_DEBUG_OBJECT (self, "Stopping decoder");
self->flushing = TRUE;
if (self->started) {
gst_amc_codec_flush (self->codec);
gst_amc_codec_stop (self->codec);
self->started = FALSE;
if (self->input_buffers)
gst_amc_codec_free_buffers (self->input_buffers, self->n_input_buffers);
self->input_buffers = NULL;
if (self->output_buffers)
gst_amc_codec_free_buffers (self->output_buffers, self->n_output_buffers);
self->output_buffers = NULL;
}
gst_pad_stop_task (GST_VIDEO_DECODER_SRC_PAD (decoder));
self->downstream_flow_ret = GST_FLOW_FLUSHING;
self->eos = FALSE;
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;
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;
self = GST_AMC_VIDEO_DEC (decoder);
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->width != state->info.width;
is_format_change |= self->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, FALSE);
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);
if (!format) {
GST_ERROR_OBJECT (self, "Failed to create video format");
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);
format_string = gst_amc_format_to_string (format);
GST_DEBUG_OBJECT (self, "Configuring codec with format: %s", format_string);
g_free (format_string);
if (!gst_amc_codec_configure (self->codec, format, 0)) {
GST_ERROR_OBJECT (self, "Failed to configure codec");
return FALSE;
}
gst_amc_format_free (format);
if (!gst_amc_codec_start (self->codec)) {
GST_ERROR_OBJECT (self, "Failed to start codec");
return FALSE;
}
if (self->input_buffers)
gst_amc_codec_free_buffers (self->input_buffers, self->n_input_buffers);
self->input_buffers =
gst_amc_codec_get_input_buffers (self->codec, &self->n_input_buffers);
if (!self->input_buffers) {
GST_ERROR_OBJECT (self, "Failed to get input buffers");
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_reset (GstVideoDecoder * decoder, gboolean hard)
{
GstAmcVideoDec *self;
self = GST_AMC_VIDEO_DEC (decoder);
GST_DEBUG_OBJECT (self, "Resetting decoder");
if (!self->started) {
GST_DEBUG_OBJECT (self, "Codec not started yet");
return TRUE;
}
self->flushing = TRUE;
gst_amc_codec_flush (self->codec);
/* 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);
self->flushing = FALSE;
/* Start the srcpad loop again */
self->last_upstream_ts = 0;
self->eos = 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);
GST_DEBUG_OBJECT (self, "Reset 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;
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->eos) {
GST_WARNING_OBJECT (self, "Got frame after EOS");
gst_video_codec_frame_unref (frame);
return GST_FLOW_EOS;
}
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);
GST_VIDEO_DECODER_STREAM_LOCK (self);
if (idx < 0) {
if (self->flushing)
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 (idx >= self->n_input_buffers)
goto invalid_buffer_index;
if (self->flushing)
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);
goto downstream_error;
}
/* Now handle the frame */
/* Copy the buffer content in chunks of size as requested
* by the port */
buf = &self->input_buffers[idx];
memset (&buffer_info, 0, sizeof (buffer_info));
buffer_info.offset = 0;
buffer_info.size = MIN (minfo.size - offset, buf->size);
orc_memcpy (buf->data, minfo.data + offset, buffer_info.size);
/* 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))
goto queue_error;
}
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;
}
invalid_buffer_index:
{
GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL),
("Invalid input buffer index %d of %d", idx, self->n_input_buffers));
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 (self, LIBRARY, FAILED, (NULL),
("Failed to dequeue input buffer"));
if (minfo.data)
gst_buffer_unmap (frame->input_buffer, &minfo);
gst_video_codec_frame_unref (frame);
return GST_FLOW_ERROR;
}
queue_error:
{
GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL),
("Failed to queue input buffer"));
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, TRUE);
}
static GstFlowReturn
gst_amc_video_dec_drain (GstAmcVideoDec * self, gboolean at_eos)
{
GstFlowReturn ret;
gint idx;
GST_DEBUG_OBJECT (self, "Draining codec");
if (!self->started) {
GST_DEBUG_OBJECT (self, "Codec not started yet");
return GST_FLOW_OK;
}
/* Don't send EOS buffer twice, this doesn't work */
if (self->eos) {
GST_DEBUG_OBJECT (self, "Codec is EOS already");
return GST_FLOW_OK;
}
if (at_eos)
self->eos = TRUE;
/* 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);
GST_VIDEO_DECODER_STREAM_LOCK (self);
if (idx >= 0 && idx < self->n_input_buffers) {
GstAmcBufferInfo buffer_info;
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;
if (gst_amc_codec_queue_input_buffer (self->codec, idx, &buffer_info)) {
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");
ret = GST_FLOW_ERROR;
}
g_mutex_unlock (&self->drain_lock);
GST_VIDEO_DECODER_STREAM_LOCK (self);
} else if (idx >= self->n_input_buffers) {
GST_ERROR_OBJECT (self, "Invalid input buffer index %d of %d",
idx, self->n_input_buffers);
ret = GST_FLOW_ERROR;
} else {
GST_ERROR_OBJECT (self, "Failed to acquire buffer for EOS: %d", idx);
ret = GST_FLOW_ERROR;
}
return ret;
}
static gboolean
gst_amc_video_dec_decide_allocation (GstVideoDecoder * bdec, GstQuery * query)
{
GstBufferPool *pool;
GstStructure *config;
if (!GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (bdec, query))
return FALSE;
g_assert (gst_query_get_n_allocation_pools (query) > 0);
gst_query_parse_nth_allocation_pool (query, 0, &pool, NULL, NULL, NULL);
g_assert (pool != NULL);
config = gst_buffer_pool_get_config (pool);
if (gst_query_find_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL)) {
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
}
gst_buffer_pool_set_config (pool, config);
gst_object_unref (pool);
return TRUE;
}
Reference in a new issue View git blame Copy permalink