mirror of
https://github.com/ZoneMinder/zoneminder.git
synced 2026-03-28 10:43:41 -04:00
df6c4a4a13
- zm_analysis_thread.cpp, zm_decoder_thread.cpp: Fix potential deadlock in Start() by calling Stop() before joining thread - zm_camera.cpp: Add null check after avformat_alloc_context() - zm_comms.cpp: Fix memory leak in InetSocket::bind(), fix error message typo in deleteReader(), fix clearReaders/clearWriters to recalculate mMaxFd properly - zm_config.cpp: Fix potential buffer underrun when parsing config files, fix misplaced SERVER_ID check logic - zm_db.cpp: Fix logger level not restored on early return in zmDbDo(), fix empty string access in DB_HOST parsing - zm_event.cpp: Fix typo "foudn" -> "found", fix memory leak with Tag allocation, fix variable shadowing with video_file - zm_event_tag.cpp: Fix null dereference when AssignedBy is NULL - zm_eventstream.cpp: Fix dangling pointer bugs with emplace_back (use auto& instead of auto), fix memory leak in loadInitialEventData Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
113 lines
3.4 KiB
C++
113 lines
3.4 KiB
C++
//
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// ZoneMinder Camera Class Implementation, $Date$, $Revision$
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// Copyright (C) 2001-2008 Philip Coombes
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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//
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#include "zm_camera.h"
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#include "zm_monitor.h"
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Camera::Camera(
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const Monitor *monitor,
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SourceType p_type,
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unsigned int p_width,
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unsigned int p_height,
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int p_colours,
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int p_subpixelorder,
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int p_brightness,
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int p_contrast,
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int p_hue,
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int p_colour,
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bool p_capture,
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bool p_record_audio
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) :
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monitor(monitor),
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type(p_type),
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width(p_width),
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height(p_height),
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colours(p_colours),
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subpixelorder(p_subpixelorder),
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brightness(p_brightness),
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hue(p_hue),
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colour(p_colour),
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contrast(p_contrast),
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capture(p_capture),
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record_audio(p_record_audio),
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mVideoStreamId(-1),
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mAudioStreamId(-1),
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mVideoCodecContext(nullptr),
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mAudioCodecContext(nullptr),
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mVideoStream(nullptr),
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mAudioStream(nullptr),
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mFormatContext(nullptr),
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mSecondFormatContext(nullptr),
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mFirstVideoPTS(0),
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mFirstAudioPTS(0),
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mLastVideoPTS(0),
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mLastAudioPTS(0),
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bytes(0),
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mIsPrimed(false) {
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linesize = width * colours;
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pixels = width * height;
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imagesize = static_cast<unsigned long long>(height) * linesize;
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Debug(2, "New camera id: %d width: %d line size: %d height: %d colours: %d subpixelorder: %d capture: %d, size: %llu",
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monitor->Id(), width, linesize, height, colours, subpixelorder, capture, imagesize);
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}
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Camera::~Camera() {
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if ( mFormatContext ) {
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// Should also free streams
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Debug(1, "Freeing mFormatContext");
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//avformat_free_context(mFormatContext);
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avformat_close_input(&mFormatContext);
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}
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if ( mSecondFormatContext ) {
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// Should also free streams
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avformat_free_context(mSecondFormatContext);
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}
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mVideoStream = nullptr;
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mAudioStream = nullptr;
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}
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AVStream *Camera::getVideoStream() {
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if ( !mVideoStream ) {
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if ( !mFormatContext ) {
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mFormatContext = avformat_alloc_context();
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if ( !mFormatContext ) {
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Error("Failed to allocate AVFormatContext");
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return nullptr;
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}
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}
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Debug(1, "Allocating avstream");
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mVideoStream = avformat_new_stream(mFormatContext, nullptr);
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if ( mVideoStream ) {
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mVideoStream->time_base = (AVRational) {1, 1000000}; // microseconds as base frame rate
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mVideoStream->codecpar->width = width;
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mVideoStream->codecpar->height = height;
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mVideoStream->codecpar->format = GetFFMPEGPixelFormat(colours, subpixelorder);
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mVideoStream->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
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mVideoStream->codecpar->codec_id = AV_CODEC_ID_NONE;
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Debug(1, "Allocating avstream %p %p %d", mVideoStream, mVideoStream->codecpar, mVideoStream->codecpar->codec_id);
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mVideoStreamId = mVideoStream->index;
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} else {
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Error("Can't create video stream");
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}
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}
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return mVideoStream;
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}
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