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Merge pull request #20552 from KidRigger/gsoc-peer

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Added interface for GDNative Videodecoder.
This commit is contained in:
Rémi Verschelde 2019-01-09 17:30:09 +01:00 committed by GitHub
commit fe8cdafbf4
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GPG Key ID: 4AEE18F83AFDEB23
10 changed files with 802 additions and 0 deletions
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1
modules/gdnative/SCsub
View File

@ -19,6 +19,7 @@ Export('env_gdnative')
SConscript("net/SCsub")
SConscript("arvr/SCsub")
SConscript("pluginscript/SCsub")
SConscript("videodecoder/SCsub")
from platform_methods import run_in_subprocess

36
modules/gdnative/gdnative_api.json
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@ -6374,6 +6374,42 @@
]
}
]
},
{
"name": "videodecoder",
"type": "VIDEODECODER",
"version": {
"major": 0,
"minor": 1
},
"next": null,
"api": [
{
"name": "godot_videodecoder_file_read",
"return_type": "godot_int",
"arguments": [
["void *", "file_ptr"],
["uint8_t *", "buf"],
["int", "buf_size"]
]
},
{
"name": "godot_videodecoder_file_seek",
"return_type": "int64_t",
"arguments": [
[ "void *", "file_ptr"],
["int64_t", "pos"],
["int", "whence"]
]
},
{
"name": "godot_videodecoder_register_decoder",
"return_type": "void",
"arguments": [
["const godot_videodecoder_interface_gdnative *", "p_interface"]
]
}
]
}
]
}

2
modules/gdnative/gdnative_builders.py
View File

@ -46,6 +46,7 @@ def _build_gdnative_api_struct_header(api):
'#include <arvr/godot_arvr.h>',
'#include <nativescript/godot_nativescript.h>',
'#include <pluginscript/godot_pluginscript.h>',
'#include <videodecoder/godot_videodecoder.h>',
'',
'#define GDNATIVE_API_INIT(options) do { \\\n' + ' \\\n'.join(gdnative_api_init_macro) + ' \\\n } while (0)',
'',
@ -244,6 +245,7 @@ def _build_gdnative_wrapper_code(api):
'#include <nativescript/godot_nativescript.h>',
'#include <pluginscript/godot_pluginscript.h>',
'#include <arvr/godot_arvr.h>',
'#include <videodecoder/godot_videodecoder.h>',
'',
'#include <gdnative_api_struct.gen.h>',
'',

75
modules/gdnative/include/videodecoder/godot_videodecoder.h Normal file
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@ -0,0 +1,75 @@
/*************************************************************************/
/* godot_videodecoder.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#ifndef GODOT_NATIVEVIDEODECODER_H
#define GODOT_NATIVEVIDEODECODER_H
#include <gdnative/gdnative.h>
#ifdef __cplusplus
extern "C" {
#endif
#define GODOTAV_API_MAJOR 0
#define GODOTAV_API_MINOR 1
typedef struct
{
godot_gdnative_api_version version;
void *next;
void *(*constructor)(godot_object *);
void (*destructor)(void *);
const char *(*get_plugin_name)(void);
const char **(*get_supported_extensions)(int *count);
godot_bool (*open_file)(void *, void *); // data struct, and a FileAccess pointer
godot_real (*get_length)(const void *);
godot_real (*get_playback_position)(const void *);
void (*seek)(void *, godot_real);
void (*set_audio_track)(void *, godot_int);
void (*update)(void *, godot_real);
godot_pool_byte_array *(*get_videoframe)(void *);
godot_int (*get_audioframe)(void *, float *, int);
godot_int (*get_channels)(const void *);
godot_int (*get_mix_rate)(const void *);
godot_vector2 (*get_texture_size)(const void *);
} godot_videodecoder_interface_gdnative;
typedef int (*GDNativeAudioMixCallback)(void *, const float *, int);
// FileAccess wrappers for custom FFmpeg IO
godot_int GDAPI godot_videodecoder_file_read(void *file_ptr, uint8_t *buf, int buf_size);
int64_t GDAPI godot_videodecoder_file_seek(void *file_ptr, int64_t pos, int whence);
void GDAPI godot_videodecoder_register_decoder(const godot_videodecoder_interface_gdnative *p_interface);
#ifdef __cplusplus
}
#endif
#endif /* GODOT_NATIVEVIDEODECODER_H */

3
modules/gdnative/register_types.cpp
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@ -38,6 +38,7 @@
#include "nativescript/register_types.h"
#include "net/register_types.h"
#include "pluginscript/register_types.h"
#include "videodecoder/register_types.h"
#include "core/engine.h"
#include "core/io/resource_loader.h"
@ -326,6 +327,7 @@ void register_gdnative_types() {
register_arvr_types();
register_nativescript_types();
register_pluginscript_types();
register_videodecoder_types();
// run singletons
@ -378,6 +380,7 @@ void unregister_gdnative_types() {
}
singleton_gdnatives.clear();
unregister_videodecoder_types();
unregister_pluginscript_types();
unregister_nativescript_types();
unregister_arvr_types();

9
modules/gdnative/videodecoder/SCsub Normal file
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@ -0,0 +1,9 @@
#!/usr/bin/env python
Import('env')
Import('env_modules')
env_vsdecoder_gdnative = env_modules.Clone()
env_vsdecoder_gdnative.Append(CPPPATH=['#modules/gdnative/include/'])
env_vsdecoder_gdnative.add_source_files(env.modules_sources, '*.cpp')

50
modules/gdnative/videodecoder/register_types.cpp Normal file
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@ -0,0 +1,50 @@
/*************************************************************************/
/* register_types.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "register_types.h"
#include "core/class_db.h"
#include "video_stream_gdnative.h"
static ResourceFormatLoaderVideoStreamGDNative *resource_loader_vsgdnative = NULL;
void register_videodecoder_types() {
resource_loader_vsgdnative = memnew(ResourceFormatLoaderVideoStreamGDNative);
ResourceLoader::add_resource_format_loader(resource_loader_vsgdnative, true);
ClassDB::register_class<VideoStreamGDNative>();
}
void unregister_videodecoder_types() {
if (resource_loader_vsgdnative) {
memdelete(resource_loader_vsgdnative);
}
}

32
modules/gdnative/videodecoder/register_types.h Normal file
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@ -0,0 +1,32 @@
/*************************************************************************/
/* register_types.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
void register_videodecoder_types();
void unregister_videodecoder_types();

387
modules/gdnative/videodecoder/video_stream_gdnative.cpp Normal file
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@ -0,0 +1,387 @@
/*************************************************************************/
/* video_stream_gdnative.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "video_stream_gdnative.h"
#include "core/project_settings.h"
#include "servers/audio_server.h"
VideoDecoderServer *VideoDecoderServer::instance = NULL;
static VideoDecoderServer decoder_server;
const int AUX_BUFFER_SIZE = 1024; // Buffer 1024 samples.
// NOTE: Callbacks for the GDNative libraries.
extern "C" {
godot_int GDAPI godot_videodecoder_file_read(void *ptr, uint8_t *buf, int buf_size) {
// ptr is a FileAccess
FileAccess *file = reinterpret_cast<FileAccess *>(ptr);
// if file exists
if (file) {
long bytes_read = file->get_buffer(buf, buf_size);
// No bytes to read => EOF
if (bytes_read == 0) {
return 0;
}
return bytes_read;
}
return -1;
}
int64_t GDAPI godot_videodecoder_file_seek(void *ptr, int64_t pos, int whence) {
// file
FileAccess *file = reinterpret_cast<FileAccess *>(ptr);
size_t len = file->get_len();
if (file) {
switch (whence) {
case SEEK_SET: {
// Just for explicitness
size_t new_pos = static_cast<size_t>(pos);
if (new_pos > len) {
return -1;
}
file->seek(new_pos);
pos = static_cast<int64_t>(file->get_position());
return pos;
} break;
case SEEK_CUR: {
// Just in case it doesn't exist
if (pos < 0 && -pos > file->get_position()) {
return -1;
}
pos = pos + static_cast<int>(file->get_position());
file->seek(pos);
pos = static_cast<int64_t>(file->get_position());
return pos;
} break;
case SEEK_END: {
// Just in case something goes wrong
if (-pos > len) {
return -1;
}
file->seek_end(pos);
pos = static_cast<int64_t>(file->get_position());
return pos;
} break;
default: {
// Only 4 possible options, hence default = AVSEEK_SIZE
// Asks to return the length of file
return static_cast<int64_t>(len);
} break;
}
}
// In case nothing works out.
return -1;
}
void GDAPI godot_videodecoder_register_decoder(const godot_videodecoder_interface_gdnative *p_interface) {
decoder_server.register_decoder_interface(p_interface);
}
}
// VideoStreamPlaybackGDNative starts here.
bool VideoStreamPlaybackGDNative::open_file(const String &p_file) {
ERR_FAIL_COND_V(interface == NULL, false);
file = FileAccess::open(p_file, FileAccess::READ);
bool file_opened = interface->open_file(data_struct, file);
num_channels = interface->get_channels(data_struct);
mix_rate = interface->get_mix_rate(data_struct);
godot_vector2 vec = interface->get_texture_size(data_struct);
texture_size = *(Vector2 *)&vec;
pcm = (float *)memalloc(num_channels * AUX_BUFFER_SIZE * sizeof(float));
memset(pcm, 0, num_channels * AUX_BUFFER_SIZE * sizeof(float));
pcm_write_idx = -1;
samples_decoded = 0;
texture->create((int)texture_size.width, (int)texture_size.height, Image::FORMAT_RGBA8, Texture::FLAG_FILTER | Texture::FLAG_VIDEO_SURFACE);
return file_opened;
}
void VideoStreamPlaybackGDNative::update(float p_delta) {
if (!playing || paused) {
return;
}
if (!file) {
return;
}
time += p_delta;
ERR_FAIL_COND(interface == NULL);
interface->update(data_struct, p_delta);
if (pcm_write_idx >= 0) {
// Previous remains
int mixed = mix_callback(mix_udata, pcm, samples_decoded);
if (mixed == samples_decoded) {
pcm_write_idx = -1;
} else {
samples_decoded -= mixed;
pcm_write_idx += mixed;
}
}
if (pcm_write_idx < 0) {
samples_decoded = interface->get_audioframe(data_struct, pcm, AUX_BUFFER_SIZE);
pcm_write_idx = mix_callback(mix_udata, pcm, samples_decoded);
if (pcm_write_idx == samples_decoded) {
pcm_write_idx = -1;
} else {
samples_decoded -= pcm_write_idx;
}
}
while (interface->get_playback_position(data_struct) < time) {
update_texture();
}
}
void VideoStreamPlaybackGDNative::update_texture() {
PoolByteArray *pba = (PoolByteArray *)interface->get_videoframe(data_struct);
if (pba == NULL) {
playing = false;
return;
}
Ref<Image> img = memnew(Image(texture_size.width, texture_size.height, 0, Image::FORMAT_RGBA8, *pba));
texture->set_data(img);
}
// ctor and dtor
VideoStreamPlaybackGDNative::VideoStreamPlaybackGDNative() :
texture(Ref<ImageTexture>(memnew(ImageTexture))),
playing(false),
paused(false),
mix_udata(NULL),
mix_callback(NULL),
num_channels(-1),
time(0),
mix_rate(0),
delay_compensation(0),
pcm(NULL),
pcm_write_idx(0),
samples_decoded(0),
file(NULL),
interface(NULL),
data_struct(NULL) {}
VideoStreamPlaybackGDNative::~VideoStreamPlaybackGDNative() {
cleanup();
}
void VideoStreamPlaybackGDNative::cleanup() {
if (data_struct)
interface->destructor(data_struct);
if (pcm)
memfree(pcm);
pcm = NULL;
time = 0;
num_channels = -1;
interface = NULL;
data_struct = NULL;
}
void VideoStreamPlaybackGDNative::set_interface(const godot_videodecoder_interface_gdnative *p_interface) {
ERR_FAIL_COND(p_interface == NULL);
if (interface != NULL) {
cleanup();
}
interface = p_interface;
data_struct = interface->constructor((godot_object *)this);
}
// controls
bool VideoStreamPlaybackGDNative::is_playing() const {
return playing;
}
bool VideoStreamPlaybackGDNative::is_paused() const {
return paused;
}
void VideoStreamPlaybackGDNative::play() {
stop();
playing = true;
delay_compensation = ProjectSettings::get_singleton()->get("audio/video_delay_compensation_ms");
delay_compensation /= 1000.0;
}
void VideoStreamPlaybackGDNative::stop() {
if (playing) {
seek(0);
}
playing = false;
}
void VideoStreamPlaybackGDNative::seek(float p_time) {
ERR_FAIL_COND(interface == NULL);
interface->seek(data_struct, p_time);
}
void VideoStreamPlaybackGDNative::set_paused(bool p_paused) {
paused = p_paused;
}
Ref<Texture> VideoStreamPlaybackGDNative::get_texture() {
return texture;
}
float VideoStreamPlaybackGDNative::get_length() const {
ERR_FAIL_COND_V(interface == NULL, 0);
return interface->get_length(data_struct);
}
float VideoStreamPlaybackGDNative::get_playback_position() const {
ERR_FAIL_COND_V(interface == NULL, 0);
return interface->get_playback_position(data_struct);
}
bool VideoStreamPlaybackGDNative::has_loop() const {
// TODO: Implement looping?
return false;
}
void VideoStreamPlaybackGDNative::set_loop(bool p_enable) {
// Do nothing
}
void VideoStreamPlaybackGDNative::set_audio_track(int p_idx) {
ERR_FAIL_COND(interface == NULL);
interface->set_audio_track(data_struct, p_idx);
}
void VideoStreamPlaybackGDNative::set_mix_callback(AudioMixCallback p_callback, void *p_userdata) {
mix_udata = p_userdata;
mix_callback = p_callback;
}
int VideoStreamPlaybackGDNative::get_channels() const {
ERR_FAIL_COND_V(interface == NULL, 0);
return (num_channels > 0) ? num_channels : 0;
}
int VideoStreamPlaybackGDNative::get_mix_rate() const {
ERR_FAIL_COND_V(interface == NULL, 0);
return mix_rate;
}
/* --- NOTE VideoStreamGDNative starts here. ----- */
Ref<VideoStreamPlayback> VideoStreamGDNative::instance_playback() {
Ref<VideoStreamPlaybackGDNative> pb = memnew(VideoStreamPlaybackGDNative);
VideoDecoderGDNative *decoder = decoder_server.get_decoder(file.get_extension().to_lower());
if (decoder == NULL)
return NULL;
pb->set_interface(decoder->interface);
pb->set_audio_track(audio_track);
if (pb->open_file(file))
return pb;
return NULL;
}
void VideoStreamGDNative::set_file(const String &p_file) {
file = p_file;
}
String VideoStreamGDNative::get_file() {
return file;
}
void VideoStreamGDNative::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_file", "file"), &VideoStreamGDNative::set_file);
ClassDB::bind_method(D_METHOD("get_file"), &VideoStreamGDNative::get_file);
ADD_PROPERTY(PropertyInfo(Variant::STRING, "file", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "set_file", "get_file");
}
void VideoStreamGDNative::set_audio_track(int p_track) {
audio_track = p_track;
}
/* --- NOTE ResourceFormatLoaderVideoStreamGDNative starts here. ----- */
RES ResourceFormatLoaderVideoStreamGDNative::load(const String &p_path, const String &p_original_path, Error *r_error) {
FileAccess *f = FileAccess::open(p_path, FileAccess::READ);
if (!f) {
if (r_error) {
*r_error = ERR_CANT_OPEN;
}
memdelete(f);
return RES();
}
VideoStreamGDNative *stream = memnew(VideoStreamGDNative);
stream->set_file(p_path);
Ref<VideoStreamGDNative> ogv_stream = Ref<VideoStreamGDNative>(stream);
if (r_error) {
*r_error = OK;
}
return ogv_stream;
}
void ResourceFormatLoaderVideoStreamGDNative::get_recognized_extensions(List<String> *p_extensions) const {
Map<String, int>::Element *el = VideoDecoderServer::get_instance()->get_extensions().front();
while (el) {
p_extensions->push_back(el->key());
el = el->next();
}
}
bool ResourceFormatLoaderVideoStreamGDNative::handles_type(const String &p_type) const {
return ClassDB::is_parent_class(p_type, "VideoStream");
}
String ResourceFormatLoaderVideoStreamGDNative::get_resource_type(const String &p_path) const {
String el = p_path.get_extension().to_lower();
if (VideoDecoderServer::get_instance()->get_extensions().has(el))
return "VideoStreamGDNative";
return "";
}

207
modules/gdnative/videodecoder/video_stream_gdnative.h Normal file
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@ -0,0 +1,207 @@
/*************************************************************************/
/* video_stream_gdnative.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#ifndef VIDEO_STREAM_GDNATIVE_H
#define VIDEO_STREAM_GDNATIVE_H
#include "../gdnative.h"
#include "core/os/file_access.h"
#include "scene/resources/texture.h"
#include "scene/resources/video_stream.h"
struct VideoDecoderGDNative {
const godot_videodecoder_interface_gdnative *interface;
String plugin_name;
Vector<String> supported_extensions;
VideoDecoderGDNative() :
interface(NULL),
plugin_name("none") {}
VideoDecoderGDNative(const godot_videodecoder_interface_gdnative *p_interface) :
interface(p_interface),
plugin_name(p_interface->get_plugin_name()) {
_get_supported_extensions();
}
private:
void _get_supported_extensions() {
supported_extensions.clear();
int num_ext;
const char **supported_ext = interface->get_supported_extensions(&num_ext);
for (int i = 0; i < num_ext; i++) {
supported_extensions.push_back(supported_ext[i]);
}
}
};
class VideoDecoderServer {
private:
Vector<VideoDecoderGDNative *> decoders;
Map<String, int> extensions;
static VideoDecoderServer *instance;
public:
static VideoDecoderServer *get_instance() {
return instance;
}
const Map<String, int> &get_extensions() {
return extensions;
}
void register_decoder_interface(const godot_videodecoder_interface_gdnative *p_interface) {
VideoDecoderGDNative *decoder = memnew(VideoDecoderGDNative(p_interface));
int index = decoders.size();
for (int i = 0; i < decoder->supported_extensions.size(); i++) {
extensions[decoder->supported_extensions[i]] = index;
}
decoders.push_back(decoder);
}
VideoDecoderGDNative *get_decoder(const String &extension) {
if (extensions.size() == 0 || !extensions.has(extension))
return NULL;
return decoders[extensions[extension]];
}
VideoDecoderServer() {
instance = this;
}
~VideoDecoderServer() {
for (int i = 0; i < decoders.size(); i++) {
memdelete(decoders[i]);
}
decoders.clear();
instance = NULL;
}
};
class VideoStreamPlaybackGDNative : public VideoStreamPlayback {
GDCLASS(VideoStreamPlaybackGDNative, VideoStreamPlayback);
Ref<ImageTexture> texture;
bool playing;
bool paused;
Vector2 texture_size;
void *mix_udata;
AudioMixCallback mix_callback;
int num_channels;
float time;
int mix_rate;
double delay_compensation;
float *pcm;
int pcm_write_idx;
int samples_decoded;
void cleanup();
void update_texture();
protected:
String file_name;
FileAccess *file;
const godot_videodecoder_interface_gdnative *interface;
void *data_struct;
public:
VideoStreamPlaybackGDNative();
~VideoStreamPlaybackGDNative();
void set_interface(const godot_videodecoder_interface_gdnative *p_interface);
bool open_file(const String &p_file);
virtual void stop();
virtual void play();
virtual bool is_playing() const;
virtual void set_paused(bool p_paused);
virtual bool is_paused() const;
virtual void set_loop(bool p_enable);
virtual bool has_loop() const;
virtual float get_length() const;
virtual float get_playback_position() const;
virtual void seek(float p_time);
virtual void set_audio_track(int p_idx);
//virtual int mix(int16_t* p_buffer,int p_frames)=0;
virtual Ref<Texture> get_texture();
virtual void update(float p_delta);
virtual void set_mix_callback(AudioMixCallback p_callback, void *p_userdata);
virtual int get_channels() const;
virtual int get_mix_rate() const;
};
class VideoStreamGDNative : public VideoStream {
GDCLASS(VideoStreamGDNative, VideoStream);
String file;
int audio_track;
protected:
static void
_bind_methods();
public:
void set_file(const String &p_file);
String get_file();
virtual void set_audio_track(int p_track);
virtual Ref<VideoStreamPlayback> instance_playback();
VideoStreamGDNative() {}
};
class ResourceFormatLoaderVideoStreamGDNative : public ResourceFormatLoader {
public:
virtual RES load(const String &p_path, const String &p_original_path = "", Error *r_error = NULL);
virtual void get_recognized_extensions(List<String> *p_extensions) const;
virtual bool handles_type(const String &p_type) const;
virtual String get_resource_type(const String &p_path) const;
};
#endif