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6dc20adadd
Theora and WebM video streams were mistakenly imported with a ResourceImporter, but those imported ogvstr and webmstr were simply links to the local resource. While that works fine in the editor, it no longer works when exporting a game as the "source" ogv and webm files are ommitted and only the ogvstr and webmstr references were exported. As discussed with @reduz, it doesn't make sense to import videos, as we only intend to play them back and not modify them/access their raw data. As such we use a ResourceFormatLoader instead of an importer, to load the file on the fly. ogv and webm files linked to this loader are now considered as resources, and thus exported. Note: The Theora and WebM loaders lack any kind of validity check beyond the existence of the target file, but it was already the case with the importer. Better checks and error reports could be added, but those loaders will eventually be obsoleted by GDNative plugins anyway. Fixes #14954.
489 lines
13 KiB
C++
489 lines
13 KiB
C++
/*************************************************************************/
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/* video_stream_webm.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "video_stream_webm.h"
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#include "OpusVorbisDecoder.hpp"
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#include "VPXDecoder.hpp"
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#include "mkvparser/mkvparser.h"
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#include "os/file_access.h"
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#include "os/os.h"
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#include "project_settings.h"
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#include "thirdparty/misc/yuv2rgb.h"
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#include "servers/audio_server.h"
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#include <string.h>
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class MkvReader : public mkvparser::IMkvReader {
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public:
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MkvReader(const String &p_file) {
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file = FileAccess::open(p_file, FileAccess::READ);
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ERR_EXPLAIN("Failed loading resource: '" + p_file + "';");
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ERR_FAIL_COND(!file);
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}
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~MkvReader() {
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if (file)
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memdelete(file);
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}
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virtual int Read(long long pos, long len, unsigned char *buf) {
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if (file) {
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if (file->get_position() != (size_t)pos)
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file->seek(pos);
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if (file->get_buffer(buf, len) == len)
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return 0;
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}
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return -1;
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}
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virtual int Length(long long *total, long long *available) {
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if (file) {
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const size_t len = file->get_len();
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if (total)
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*total = len;
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if (available)
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*available = len;
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return 0;
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}
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return -1;
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}
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private:
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FileAccess *file;
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};
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/**/
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VideoStreamPlaybackWebm::VideoStreamPlaybackWebm() :
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audio_track(0),
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webm(NULL),
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video(NULL),
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audio(NULL),
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video_frames(NULL),
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audio_frame(NULL),
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video_frames_pos(0),
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video_frames_capacity(0),
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num_decoded_samples(0),
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samples_offset(-1),
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mix_callback(NULL),
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mix_udata(NULL),
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playing(false),
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paused(false),
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delay_compensation(0.0),
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time(0.0),
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video_frame_delay(0.0),
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video_pos(0.0),
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texture(memnew(ImageTexture)),
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pcm(NULL) {}
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VideoStreamPlaybackWebm::~VideoStreamPlaybackWebm() {
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delete_pointers();
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}
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bool VideoStreamPlaybackWebm::open_file(const String &p_file) {
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file_name = p_file;
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webm = memnew(WebMDemuxer(new MkvReader(file_name), 0, audio_track));
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if (webm->isOpen()) {
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video = memnew(VPXDecoder(*webm, OS::get_singleton()->get_processor_count()));
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if (video->isOpen()) {
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audio = memnew(OpusVorbisDecoder(*webm));
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if (audio->isOpen()) {
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audio_frame = memnew(WebMFrame);
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pcm = (float *)memalloc(sizeof(float) * audio->getBufferSamples() * webm->getChannels());
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} else {
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memdelete(audio);
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audio = NULL;
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}
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frame_data.resize((webm->getWidth() * webm->getHeight()) << 2);
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texture->create(webm->getWidth(), webm->getHeight(), Image::FORMAT_RGBA8, Texture::FLAG_FILTER | Texture::FLAG_VIDEO_SURFACE);
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return true;
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}
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memdelete(video);
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video = NULL;
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}
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memdelete(webm);
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webm = NULL;
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return false;
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}
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void VideoStreamPlaybackWebm::stop() {
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if (playing) {
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delete_pointers();
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pcm = NULL;
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audio_frame = NULL;
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video_frames = NULL;
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video = NULL;
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audio = NULL;
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open_file(file_name); //Should not fail here...
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video_frames_capacity = video_frames_pos = 0;
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num_decoded_samples = 0;
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samples_offset = -1;
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video_frame_delay = video_pos = 0.0;
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}
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time = 0.0;
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playing = false;
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}
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void VideoStreamPlaybackWebm::play() {
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stop();
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delay_compensation = ProjectSettings::get_singleton()->get("audio/video_delay_compensation_ms");
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delay_compensation /= 1000.0;
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playing = true;
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}
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bool VideoStreamPlaybackWebm::is_playing() const {
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return playing;
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}
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void VideoStreamPlaybackWebm::set_paused(bool p_paused) {
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paused = p_paused;
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}
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bool VideoStreamPlaybackWebm::is_paused() const {
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return paused;
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}
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void VideoStreamPlaybackWebm::set_loop(bool p_enable) {
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//Empty
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}
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bool VideoStreamPlaybackWebm::has_loop() const {
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return false;
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}
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float VideoStreamPlaybackWebm::get_length() const {
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if (webm)
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return webm->getLength();
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return 0.0f;
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}
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float VideoStreamPlaybackWebm::get_playback_position() const {
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return video_pos;
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}
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void VideoStreamPlaybackWebm::seek(float p_time) {
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//Not implemented
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}
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void VideoStreamPlaybackWebm::set_audio_track(int p_idx) {
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audio_track = p_idx;
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}
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Ref<Texture> VideoStreamPlaybackWebm::get_texture() {
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return texture;
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}
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void VideoStreamPlaybackWebm::update(float p_delta) {
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if ((!playing || paused) || !video)
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return;
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time += p_delta;
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if (time < video_pos) {
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return;
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}
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bool audio_buffer_full = false;
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if (samples_offset > -1) {
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//Mix remaining samples
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const int to_read = num_decoded_samples - samples_offset;
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const int mixed = mix_callback(mix_udata, pcm + samples_offset * webm->getChannels(), to_read);
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if (mixed != to_read) {
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samples_offset += mixed;
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audio_buffer_full = true;
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} else {
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samples_offset = -1;
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}
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}
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const bool hasAudio = (audio && mix_callback);
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while ((hasAudio && !audio_buffer_full && !has_enough_video_frames()) ||
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(!hasAudio && video_frames_pos == 0)) {
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if (hasAudio && !audio_buffer_full && audio_frame->isValid() &&
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audio->getPCMF(*audio_frame, pcm, num_decoded_samples) && num_decoded_samples > 0) {
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const int mixed = mix_callback(mix_udata, pcm, num_decoded_samples);
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if (mixed != num_decoded_samples) {
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samples_offset = mixed;
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audio_buffer_full = true;
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}
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}
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WebMFrame *video_frame;
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if (video_frames_pos >= video_frames_capacity) {
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WebMFrame **video_frames_new = (WebMFrame **)memrealloc(video_frames, ++video_frames_capacity * sizeof(void *));
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ERR_FAIL_COND(!video_frames_new); //Out of memory
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(video_frames = video_frames_new)[video_frames_capacity - 1] = memnew(WebMFrame);
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}
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video_frame = video_frames[video_frames_pos];
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if (!webm->readFrame(video_frame, audio_frame)) //This will invalidate frames
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break; //Can't demux, EOS?
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if (video_frame->isValid())
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++video_frames_pos;
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};
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bool video_frame_done = false;
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while (video_frames_pos > 0 && !video_frame_done) {
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WebMFrame *video_frame = video_frames[0];
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// It seems VPXDecoder::decode has to be executed even though we might skip this frame
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if (video->decode(*video_frame)) {
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VPXDecoder::IMAGE_ERROR err;
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VPXDecoder::Image image;
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if (should_process(*video_frame)) {
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if ((err = video->getImage(image)) != VPXDecoder::NO_FRAME) {
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if (err == VPXDecoder::NO_ERROR && image.w == webm->getWidth() && image.h == webm->getHeight()) {
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PoolVector<uint8_t>::Write w = frame_data.write();
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bool converted = false;
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if (image.chromaShiftW == 1 && image.chromaShiftH == 1) {
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yuv420_2_rgb8888(w.ptr(), image.planes[0], image.planes[2], image.planes[1], image.w, image.h, image.linesize[0], image.linesize[1], image.w << 2, 0);
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// libyuv::I420ToARGB(image.planes[0], image.linesize[0], image.planes[2], image.linesize[2], image.planes[1], image.linesize[1], w.ptr(), image.w << 2, image.w, image.h);
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converted = true;
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} else if (image.chromaShiftW == 1 && image.chromaShiftH == 0) {
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yuv422_2_rgb8888(w.ptr(), image.planes[0], image.planes[2], image.planes[1], image.w, image.h, image.linesize[0], image.linesize[1], image.w << 2, 0);
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// libyuv::I422ToARGB(image.planes[0], image.linesize[0], image.planes[2], image.linesize[2], image.planes[1], image.linesize[1], w.ptr(), image.w << 2, image.w, image.h);
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converted = true;
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} else if (image.chromaShiftW == 0 && image.chromaShiftH == 0) {
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yuv444_2_rgb8888(w.ptr(), image.planes[0], image.planes[2], image.planes[1], image.w, image.h, image.linesize[0], image.linesize[1], image.w << 2, 0);
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// libyuv::I444ToARGB(image.planes[0], image.linesize[0], image.planes[2], image.linesize[2], image.planes[1], image.linesize[1], w.ptr(), image.w << 2, image.w, image.h);
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converted = true;
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} else if (image.chromaShiftW == 2 && image.chromaShiftH == 0) {
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// libyuv::I411ToARGB(image.planes[0], image.linesize[0], image.planes[2], image.linesize[2], image.planes[1], image.linesize[1], w.ptr(), image.w << 2, image.w, image.h);
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// converted = true;
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}
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if (converted) {
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Ref<Image> img = memnew(Image(image.w, image.h, 0, Image::FORMAT_RGBA8, frame_data));
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texture->set_data(img); //Zero copy send to visual server
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video_frame_done = true;
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}
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}
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}
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}
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}
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video_pos = video_frame->time;
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memmove(video_frames, video_frames + 1, (--video_frames_pos) * sizeof(void *));
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video_frames[video_frames_pos] = video_frame;
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}
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if (video_frames_pos == 0 && webm->isEOS())
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stop();
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}
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void VideoStreamPlaybackWebm::set_mix_callback(VideoStreamPlayback::AudioMixCallback p_callback, void *p_userdata) {
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mix_callback = p_callback;
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mix_udata = p_userdata;
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}
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int VideoStreamPlaybackWebm::get_channels() const {
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if (audio)
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return webm->getChannels();
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return 0;
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}
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int VideoStreamPlaybackWebm::get_mix_rate() const {
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if (audio)
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return webm->getSampleRate();
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return 0;
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}
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inline bool VideoStreamPlaybackWebm::has_enough_video_frames() const {
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if (video_frames_pos > 0) {
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const double audio_delay = AudioServer::get_singleton()->get_output_delay();
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const double video_time = video_frames[video_frames_pos - 1]->time;
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return video_time >= time + audio_delay + delay_compensation;
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}
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return false;
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}
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bool VideoStreamPlaybackWebm::should_process(WebMFrame &video_frame) {
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const double audio_delay = AudioServer::get_singleton()->get_output_delay();
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return video_frame.time >= time + audio_delay + delay_compensation;
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}
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void VideoStreamPlaybackWebm::delete_pointers() {
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if (pcm)
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memfree(pcm);
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if (audio_frame)
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memdelete(audio_frame);
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for (int i = 0; i < video_frames_capacity; ++i)
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memdelete(video_frames[i]);
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if (video_frames)
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memfree(video_frames);
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if (video)
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memdelete(video);
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if (audio)
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memdelete(audio);
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if (webm)
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memdelete(webm);
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}
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/**/
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VideoStreamWebm::VideoStreamWebm() :
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audio_track(0) {}
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Ref<VideoStreamPlayback> VideoStreamWebm::instance_playback() {
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Ref<VideoStreamPlaybackWebm> pb = memnew(VideoStreamPlaybackWebm);
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pb->set_audio_track(audio_track);
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if (pb->open_file(file))
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return pb;
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return NULL;
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}
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void VideoStreamWebm::set_file(const String &p_file) {
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file = p_file;
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}
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String VideoStreamWebm::get_file() {
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return file;
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}
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void VideoStreamWebm::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_file", "file"), &VideoStreamWebm::set_file);
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ClassDB::bind_method(D_METHOD("get_file"), &VideoStreamWebm::get_file);
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ADD_PROPERTY(PropertyInfo(Variant::STRING, "file", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "set_file", "get_file");
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}
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void VideoStreamWebm::set_audio_track(int p_track) {
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audio_track = p_track;
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}
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////////////
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RES ResourceFormatLoaderWebm::load(const String &p_path, const String &p_original_path, Error *r_error) {
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FileAccess *f = FileAccess::open(p_path, FileAccess::READ);
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if (!f) {
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if (r_error) {
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*r_error = ERR_CANT_OPEN;
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}
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memdelete(f);
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return RES();
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}
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VideoStreamWebm *stream = memnew(VideoStreamWebm);
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stream->set_file(p_path);
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Ref<VideoStreamWebm> webm_stream = Ref<VideoStreamWebm>(stream);
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if (r_error) {
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*r_error = OK;
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}
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return webm_stream;
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}
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void ResourceFormatLoaderWebm::get_recognized_extensions(List<String> *p_extensions) const {
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p_extensions->push_back("webm");
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}
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bool ResourceFormatLoaderWebm::handles_type(const String &p_type) const {
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return ClassDB::is_parent_class(p_type, "VideoStream");
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}
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String ResourceFormatLoaderWebm::get_resource_type(const String &p_path) const {
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String el = p_path.get_extension().to_lower();
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if (el == "webm")
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return "VideoStreamWebm";
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return "";
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}
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