764 lines
19 KiB
C++
764 lines
19 KiB
C++
/*************************************************************************/
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/* video_stream_theora.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) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 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_theora.h"
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#include "core/os/os.h"
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#include "core/project_settings.h"
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#include "thirdparty/misc/yuv2rgb.h"
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int VideoStreamPlaybackTheora::buffer_data() {
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char *buffer = ogg_sync_buffer(&oy, 4096);
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#ifdef THEORA_USE_THREAD_STREAMING
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int read;
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do {
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thread_sem->post();
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read = MIN(ring_buffer.data_left(), 4096);
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if (read) {
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ring_buffer.read((uint8_t *)buffer, read);
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ogg_sync_wrote(&oy, read);
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} else {
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OS::get_singleton()->delay_usec(100);
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}
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} while (read == 0);
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return read;
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#else
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int bytes = file->get_buffer((uint8_t *)buffer, 4096);
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ogg_sync_wrote(&oy, bytes);
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return (bytes);
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#endif
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}
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int VideoStreamPlaybackTheora::queue_page(ogg_page *page) {
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if (theora_p) {
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ogg_stream_pagein(&to, page);
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if (to.e_o_s)
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theora_eos = true;
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}
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if (vorbis_p) {
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ogg_stream_pagein(&vo, page);
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if (vo.e_o_s)
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vorbis_eos = true;
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}
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return 0;
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}
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void VideoStreamPlaybackTheora::video_write(void) {
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th_ycbcr_buffer yuv;
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th_decode_ycbcr_out(td, yuv);
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int pitch = 4;
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frame_data.resize(size.x * size.y * pitch);
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{
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PoolVector<uint8_t>::Write w = frame_data.write();
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char *dst = (char *)w.ptr();
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//uv_offset=(ti.pic_x/2)+(yuv[1].stride)*(ti.pic_y/2);
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if (px_fmt == TH_PF_444) {
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yuv444_2_rgb8888((uint8_t *)dst, (uint8_t *)yuv[0].data, (uint8_t *)yuv[1].data, (uint8_t *)yuv[2].data, size.x, size.y, yuv[0].stride, yuv[1].stride, size.x << 2);
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} else if (px_fmt == TH_PF_422) {
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yuv422_2_rgb8888((uint8_t *)dst, (uint8_t *)yuv[0].data, (uint8_t *)yuv[1].data, (uint8_t *)yuv[2].data, size.x, size.y, yuv[0].stride, yuv[1].stride, size.x << 2);
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} else if (px_fmt == TH_PF_420) {
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yuv420_2_rgb8888((uint8_t *)dst, (uint8_t *)yuv[0].data, (uint8_t *)yuv[1].data, (uint8_t *)yuv[2].data, size.x, size.y, yuv[0].stride, yuv[1].stride, size.x << 2);
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};
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format = Image::FORMAT_RGBA8;
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}
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Ref<Image> img = memnew(Image(size.x, size.y, 0, Image::FORMAT_RGBA8, frame_data)); //zero copy image creation
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texture->set_data(img); //zero copy send to visual server
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frames_pending = 1;
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}
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void VideoStreamPlaybackTheora::clear() {
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if (!file)
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return;
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if (vorbis_p) {
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ogg_stream_clear(&vo);
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if (vorbis_p >= 3) {
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vorbis_block_clear(&vb);
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vorbis_dsp_clear(&vd);
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};
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vorbis_comment_clear(&vc);
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vorbis_info_clear(&vi);
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vorbis_p = 0;
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}
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if (theora_p) {
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ogg_stream_clear(&to);
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th_decode_free(td);
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th_comment_clear(&tc);
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th_info_clear(&ti);
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theora_p = 0;
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}
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ogg_sync_clear(&oy);
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#ifdef THEORA_USE_THREAD_STREAMING
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thread_exit = true;
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thread_sem->post(); //just in case
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Thread::wait_to_finish(thread);
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memdelete(thread);
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thread = NULL;
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ring_buffer.clear();
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#endif
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theora_p = 0;
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vorbis_p = 0;
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videobuf_ready = 0;
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frames_pending = 0;
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videobuf_time = 0;
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theora_eos = false;
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vorbis_eos = false;
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if (file) {
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memdelete(file);
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}
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file = NULL;
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playing = false;
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};
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void VideoStreamPlaybackTheora::set_file(const String &p_file) {
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ERR_FAIL_COND(playing);
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ogg_packet op;
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th_setup_info *ts = NULL;
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file_name = p_file;
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if (file) {
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memdelete(file);
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}
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file = FileAccess::open(p_file, FileAccess::READ);
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ERR_FAIL_COND_MSG(!file, "Cannot open file '" + p_file + "'.");
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#ifdef THEORA_USE_THREAD_STREAMING
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thread_exit = false;
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thread_eof = false;
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//pre-fill buffer
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int to_read = ring_buffer.space_left();
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int read = file->get_buffer(read_buffer.ptr(), to_read);
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ring_buffer.write(read_buffer.ptr(), read);
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thread = Thread::create(_streaming_thread, this);
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#endif
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ogg_sync_init(&oy);
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/* init supporting Vorbis structures needed in header parsing */
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vorbis_info_init(&vi);
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vorbis_comment_init(&vc);
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/* init supporting Theora structures needed in header parsing */
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th_comment_init(&tc);
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th_info_init(&ti);
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theora_eos = false;
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vorbis_eos = false;
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/* Ogg file open; parse the headers */
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/* Only interested in Vorbis/Theora streams */
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int stateflag = 0;
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int audio_track_skip = audio_track;
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while (!stateflag) {
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int ret = buffer_data();
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if (ret == 0) break;
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while (ogg_sync_pageout(&oy, &og) > 0) {
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ogg_stream_state test;
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/* is this a mandated initial header? If not, stop parsing */
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if (!ogg_page_bos(&og)) {
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/* don't leak the page; get it into the appropriate stream */
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queue_page(&og);
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stateflag = 1;
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break;
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}
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ogg_stream_init(&test, ogg_page_serialno(&og));
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ogg_stream_pagein(&test, &og);
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ogg_stream_packetout(&test, &op);
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/* identify the codec: try theora */
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if (!theora_p && th_decode_headerin(&ti, &tc, &ts, &op) >= 0) {
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/* it is theora */
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copymem(&to, &test, sizeof(test));
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theora_p = 1;
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} else if (!vorbis_p && vorbis_synthesis_headerin(&vi, &vc, &op) >= 0) {
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/* it is vorbis */
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if (audio_track_skip) {
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vorbis_info_clear(&vi);
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vorbis_comment_clear(&vc);
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ogg_stream_clear(&test);
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vorbis_info_init(&vi);
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vorbis_comment_init(&vc);
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audio_track_skip--;
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} else {
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copymem(&vo, &test, sizeof(test));
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vorbis_p = 1;
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}
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} else {
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/* whatever it is, we don't care about it */
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ogg_stream_clear(&test);
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}
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}
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/* fall through to non-bos page parsing */
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}
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/* we're expecting more header packets. */
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while ((theora_p && theora_p < 3) || (vorbis_p && vorbis_p < 3)) {
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int ret;
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/* look for further theora headers */
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while (theora_p && (theora_p < 3) && (ret = ogg_stream_packetout(&to, &op))) {
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if (ret < 0) {
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fprintf(stderr, "Error parsing Theora stream headers; corrupt stream?\n");
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clear();
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return;
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}
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if (!th_decode_headerin(&ti, &tc, &ts, &op)) {
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fprintf(stderr, "Error parsing Theora stream headers; corrupt stream?\n");
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clear();
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return;
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}
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theora_p++;
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}
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/* look for more vorbis header packets */
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while (vorbis_p && (vorbis_p < 3) && (ret = ogg_stream_packetout(&vo, &op))) {
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if (ret < 0) {
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fprintf(stderr, "Error parsing Vorbis stream headers; corrupt stream?\n");
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clear();
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return;
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}
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ret = vorbis_synthesis_headerin(&vi, &vc, &op);
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if (ret) {
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fprintf(stderr, "Error parsing Vorbis stream headers; corrupt stream?\n");
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clear();
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return;
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}
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vorbis_p++;
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if (vorbis_p == 3) break;
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}
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/* The header pages/packets will arrive before anything else we
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care about, or the stream is not obeying spec */
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if (ogg_sync_pageout(&oy, &og) > 0) {
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queue_page(&og); /* demux into the appropriate stream */
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} else {
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int ret2 = buffer_data(); /* someone needs more data */
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if (ret2 == 0) {
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fprintf(stderr, "End of file while searching for codec headers.\n");
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clear();
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return;
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}
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}
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}
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/* and now we have it all. initialize decoders */
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if (theora_p) {
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td = th_decode_alloc(&ti, ts);
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px_fmt = ti.pixel_fmt;
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switch (ti.pixel_fmt) {
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case TH_PF_420:
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//printf(" 4:2:0 video\n");
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break;
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case TH_PF_422:
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//printf(" 4:2:2 video\n");
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break;
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case TH_PF_444:
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//printf(" 4:4:4 video\n");
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break;
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case TH_PF_RSVD:
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default:
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printf(" video\n (UNKNOWN Chroma sampling!)\n");
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break;
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}
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th_decode_ctl(td, TH_DECCTL_GET_PPLEVEL_MAX, &pp_level_max,
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sizeof(pp_level_max));
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pp_level = 0;
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th_decode_ctl(td, TH_DECCTL_SET_PPLEVEL, &pp_level, sizeof(pp_level));
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pp_inc = 0;
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int w;
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int h;
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w = ((ti.pic_x + ti.frame_width + 1) & ~1) - (ti.pic_x & ~1);
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h = ((ti.pic_y + ti.frame_height + 1) & ~1) - (ti.pic_y & ~1);
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size.x = w;
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size.y = h;
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texture->create(w, h, Image::FORMAT_RGBA8, Texture::FLAG_FILTER | Texture::FLAG_VIDEO_SURFACE);
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} else {
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/* tear down the partial theora setup */
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th_info_clear(&ti);
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th_comment_clear(&tc);
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}
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th_setup_free(ts);
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if (vorbis_p) {
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vorbis_synthesis_init(&vd, &vi);
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vorbis_block_init(&vd, &vb);
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//_setup(vi.channels, vi.rate);
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} else {
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/* tear down the partial vorbis setup */
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vorbis_info_clear(&vi);
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vorbis_comment_clear(&vc);
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}
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playing = false;
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buffering = true;
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time = 0;
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audio_frames_wrote = 0;
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};
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float VideoStreamPlaybackTheora::get_time() const {
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return time - AudioServer::get_singleton()->get_output_latency() - delay_compensation; //-((get_total())/(float)vi.rate);
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};
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Ref<Texture> VideoStreamPlaybackTheora::get_texture() const {
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return texture;
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}
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void VideoStreamPlaybackTheora::update(float p_delta) {
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if (!file)
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return;
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if (!playing || paused) {
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//printf("not playing\n");
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return;
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};
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#ifdef THEORA_USE_THREAD_STREAMING
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thread_sem->post();
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#endif
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time += p_delta;
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if (videobuf_time > get_time()) {
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return; //no new frames need to be produced
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}
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bool frame_done = false;
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bool audio_done = !vorbis_p;
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while (!frame_done || (!audio_done && !vorbis_eos)) {
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//a frame needs to be produced
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ogg_packet op;
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bool no_theora = false;
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bool buffer_full = false;
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while (vorbis_p && !audio_done && !buffer_full) {
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int ret;
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float **pcm;
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/* if there's pending, decoded audio, grab it */
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ret = vorbis_synthesis_pcmout(&vd, &pcm);
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if (ret > 0) {
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const int AUXBUF_LEN = 4096;
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int to_read = ret;
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float aux_buffer[AUXBUF_LEN];
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while (to_read) {
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int m = MIN(AUXBUF_LEN / vi.channels, to_read);
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int count = 0;
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for (int j = 0; j < m; j++) {
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for (int i = 0; i < vi.channels; i++) {
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aux_buffer[count++] = pcm[i][j];
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}
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}
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if (mix_callback) {
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int mixed = mix_callback(mix_udata, aux_buffer, m);
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to_read -= mixed;
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if (mixed != m) { //could mix no more
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buffer_full = true;
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break;
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}
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} else {
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to_read -= m; //just pretend we sent the audio
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}
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}
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vorbis_synthesis_read(&vd, ret - to_read);
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audio_frames_wrote += ret - to_read;
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} else {
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/* no pending audio; is there a pending packet to decode? */
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if (ogg_stream_packetout(&vo, &op) > 0) {
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if (vorbis_synthesis(&vb, &op) == 0) { /* test for success! */
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vorbis_synthesis_blockin(&vd, &vb);
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}
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} else { /* we need more data; break out to suck in another page */
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break;
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};
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}
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audio_done = videobuf_time < (audio_frames_wrote / float(vi.rate));
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if (buffer_full)
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break;
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}
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while (theora_p && !frame_done) {
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/* theora is one in, one out... */
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if (ogg_stream_packetout(&to, &op) > 0) {
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if (false && pp_inc) {
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pp_level += pp_inc;
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th_decode_ctl(td, TH_DECCTL_SET_PPLEVEL, &pp_level,
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sizeof(pp_level));
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pp_inc = 0;
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}
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/*HACK: This should be set after a seek or a gap, but we might not have
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a granulepos for the first packet (we only have them for the last
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packet on a page), so we just set it as often as we get it.
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To do this right, we should back-track from the last packet on the
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page and compute the correct granulepos for the first packet after
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a seek or a gap.*/
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if (op.granulepos >= 0) {
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th_decode_ctl(td, TH_DECCTL_SET_GRANPOS, &op.granulepos,
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sizeof(op.granulepos));
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}
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ogg_int64_t videobuf_granulepos;
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if (th_decode_packetin(td, &op, &videobuf_granulepos) == 0) {
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videobuf_time = th_granule_time(td, videobuf_granulepos);
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//printf("frame time %f, play time %f, ready %i\n", (float)videobuf_time, get_time(), videobuf_ready);
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/* is it already too old to be useful? This is only actually
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useful cosmetically after a SIGSTOP. Note that we have to
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decode the frame even if we don't show it (for now) due to
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keyframing. Soon enough libtheora will be able to deal
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with non-keyframe seeks. */
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if (videobuf_time >= get_time()) {
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frame_done = true;
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} else {
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/*If we are too slow, reduce the pp level.*/
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pp_inc = pp_level > 0 ? -1 : 0;
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}
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}
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} else {
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no_theora = true;
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break;
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}
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}
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#ifdef THEORA_USE_THREAD_STREAMING
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if (file && thread_eof && no_theora && theora_eos && ring_buffer.data_left() == 0) {
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#else
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if (file && /*!videobuf_ready && */ no_theora && theora_eos) {
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#endif
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//printf("video done, stopping\n");
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stop();
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return;
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};
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|
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if (!frame_done || !audio_done) {
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//what's the point of waiting for audio to grab a page?
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buffer_data();
|
|
while (ogg_sync_pageout(&oy, &og) > 0) {
|
|
queue_page(&og);
|
|
}
|
|
}
|
|
|
|
/* If playback has begun, top audio buffer off immediately. */
|
|
//if(stateflag) audio_write_nonblocking();
|
|
|
|
/* are we at or past time for this video frame? */
|
|
if (videobuf_ready && videobuf_time <= get_time()) {
|
|
|
|
//video_write();
|
|
//videobuf_ready=0;
|
|
} else {
|
|
//printf("frame at %f not ready (time %f), ready %i\n", (float)videobuf_time, get_time(), videobuf_ready);
|
|
}
|
|
|
|
float tdiff = videobuf_time - get_time();
|
|
/*If we have lots of extra time, increase the post-processing level.*/
|
|
if (tdiff > ti.fps_denominator * 0.25 / ti.fps_numerator) {
|
|
pp_inc = pp_level < pp_level_max ? 1 : 0;
|
|
} else if (tdiff < ti.fps_denominator * 0.05 / ti.fps_numerator) {
|
|
pp_inc = pp_level > 0 ? -1 : 0;
|
|
}
|
|
}
|
|
|
|
video_write();
|
|
};
|
|
|
|
void VideoStreamPlaybackTheora::play() {
|
|
|
|
if (!playing)
|
|
time = 0;
|
|
else {
|
|
stop();
|
|
}
|
|
|
|
playing = true;
|
|
delay_compensation = ProjectSettings::get_singleton()->get("audio/video_delay_compensation_ms");
|
|
delay_compensation /= 1000.0;
|
|
};
|
|
|
|
void VideoStreamPlaybackTheora::stop() {
|
|
|
|
if (playing) {
|
|
|
|
clear();
|
|
set_file(file_name); //reset
|
|
}
|
|
playing = false;
|
|
time = 0;
|
|
};
|
|
|
|
bool VideoStreamPlaybackTheora::is_playing() const {
|
|
|
|
return playing;
|
|
};
|
|
|
|
void VideoStreamPlaybackTheora::set_paused(bool p_paused) {
|
|
|
|
paused = p_paused;
|
|
};
|
|
|
|
bool VideoStreamPlaybackTheora::is_paused() const {
|
|
|
|
return paused;
|
|
};
|
|
|
|
void VideoStreamPlaybackTheora::set_loop(bool p_enable){
|
|
|
|
};
|
|
|
|
bool VideoStreamPlaybackTheora::has_loop() const {
|
|
|
|
return false;
|
|
};
|
|
|
|
float VideoStreamPlaybackTheora::get_length() const {
|
|
|
|
return 0;
|
|
};
|
|
|
|
String VideoStreamPlaybackTheora::get_stream_name() const {
|
|
|
|
return "";
|
|
};
|
|
|
|
int VideoStreamPlaybackTheora::get_loop_count() const {
|
|
|
|
return 0;
|
|
};
|
|
|
|
float VideoStreamPlaybackTheora::get_playback_position() const {
|
|
|
|
return get_time();
|
|
};
|
|
|
|
void VideoStreamPlaybackTheora::seek(float p_time){
|
|
|
|
// no
|
|
};
|
|
|
|
void VideoStreamPlaybackTheora::set_mix_callback(AudioMixCallback p_callback, void *p_userdata) {
|
|
|
|
mix_callback = p_callback;
|
|
mix_udata = p_userdata;
|
|
}
|
|
|
|
int VideoStreamPlaybackTheora::get_channels() const {
|
|
|
|
return vi.channels;
|
|
}
|
|
|
|
void VideoStreamPlaybackTheora::set_audio_track(int p_idx) {
|
|
|
|
audio_track = p_idx;
|
|
}
|
|
|
|
int VideoStreamPlaybackTheora::get_mix_rate() const {
|
|
|
|
return vi.rate;
|
|
}
|
|
|
|
#ifdef THEORA_USE_THREAD_STREAMING
|
|
|
|
void VideoStreamPlaybackTheora::_streaming_thread(void *ud) {
|
|
|
|
VideoStreamPlaybackTheora *vs = (VideoStreamPlaybackTheora *)ud;
|
|
|
|
while (!vs->thread_exit) {
|
|
|
|
//just fill back the buffer
|
|
if (!vs->thread_eof) {
|
|
|
|
int to_read = vs->ring_buffer.space_left();
|
|
if (to_read) {
|
|
int read = vs->file->get_buffer(vs->read_buffer.ptr(), to_read);
|
|
vs->ring_buffer.write(vs->read_buffer.ptr(), read);
|
|
vs->thread_eof = vs->file->eof_reached();
|
|
}
|
|
}
|
|
|
|
vs->thread_sem->wait();
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
VideoStreamPlaybackTheora::VideoStreamPlaybackTheora() {
|
|
|
|
file = NULL;
|
|
theora_p = 0;
|
|
vorbis_p = 0;
|
|
videobuf_ready = 0;
|
|
playing = false;
|
|
frames_pending = 0;
|
|
videobuf_time = 0;
|
|
paused = false;
|
|
|
|
buffering = false;
|
|
texture = Ref<ImageTexture>(memnew(ImageTexture));
|
|
mix_callback = NULL;
|
|
mix_udata = NULL;
|
|
audio_track = 0;
|
|
delay_compensation = 0;
|
|
audio_frames_wrote = 0;
|
|
|
|
#ifdef THEORA_USE_THREAD_STREAMING
|
|
int rb_power = nearest_shift(RB_SIZE_KB * 1024);
|
|
ring_buffer.resize(rb_power);
|
|
read_buffer.resize(RB_SIZE_KB * 1024);
|
|
thread_sem = Semaphore::create();
|
|
thread = NULL;
|
|
thread_exit = false;
|
|
thread_eof = false;
|
|
|
|
#endif
|
|
};
|
|
|
|
VideoStreamPlaybackTheora::~VideoStreamPlaybackTheora() {
|
|
|
|
#ifdef THEORA_USE_THREAD_STREAMING
|
|
|
|
memdelete(thread_sem);
|
|
#endif
|
|
clear();
|
|
|
|
if (file)
|
|
memdelete(file);
|
|
};
|
|
|
|
void VideoStreamTheora::_bind_methods() {
|
|
|
|
ClassDB::bind_method(D_METHOD("set_file", "file"), &VideoStreamTheora::set_file);
|
|
ClassDB::bind_method(D_METHOD("get_file"), &VideoStreamTheora::get_file);
|
|
|
|
ADD_PROPERTY(PropertyInfo(Variant::STRING, "file", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "set_file", "get_file");
|
|
}
|
|
|
|
////////////
|
|
|
|
RES ResourceFormatLoaderTheora::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;
|
|
}
|
|
return RES();
|
|
}
|
|
|
|
VideoStreamTheora *stream = memnew(VideoStreamTheora);
|
|
stream->set_file(p_path);
|
|
|
|
Ref<VideoStreamTheora> ogv_stream = Ref<VideoStreamTheora>(stream);
|
|
|
|
if (r_error) {
|
|
*r_error = OK;
|
|
}
|
|
|
|
f->close();
|
|
memdelete(f);
|
|
return ogv_stream;
|
|
}
|
|
|
|
void ResourceFormatLoaderTheora::get_recognized_extensions(List<String> *p_extensions) const {
|
|
|
|
p_extensions->push_back("ogv");
|
|
}
|
|
|
|
bool ResourceFormatLoaderTheora::handles_type(const String &p_type) const {
|
|
|
|
return ClassDB::is_parent_class(p_type, "VideoStream");
|
|
}
|
|
|
|
String ResourceFormatLoaderTheora::get_resource_type(const String &p_path) const {
|
|
|
|
String el = p_path.get_extension().to_lower();
|
|
if (el == "ogv")
|
|
return "VideoStreamTheora";
|
|
return "";
|
|
}
|