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zoneminder/src
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Isaac Connor b2b50aba5d perf: skip clearPackets early-returns and allow drop-to-iterator-keyframe 
Two related changes to PacketQueue::clearPackets, called by the analysis
thread on every video packet:

1. Lock-free call-site gate (should_try_clear) on the analysis path.
   In keep_keyframes mode the existing early-return at the top of
   clearPackets discards most non-keyframe video packets after acquiring
   the queue mutex. Add an inline lock-free check at the call site so
   non-keyframe packets skip the mutex acquire entirely. clear_packets_pending_
   is now std::atomic<bool> so it can be read without the lock; a stale
   read is harmless (at worst we make one extra cheap early-returning call).
   The !keep_keyframes path always returns true from the gate because that
   mode pops one packet at a time on every video packet.

2. Iterator boundary in the scan loop changed from >= to >. Setting
   next_front to a packet that an iterator points at is safe because
   clearPackets deletes strictly before next_front, so the iterator's
   own packet stays in the queue. Previously, an event-start (or other)
   iterator landing exactly on a keyframe blocked the leading GOP from
   being dropped until the iterator advanced; now we can include that
   keyframe as next_front while the iterator continues to point at it.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-29 19:39:04 -04:00
..
bindings.h
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2024-03-26 13:43:58 -05:00
CMakeLists.txt
fix: link stdc++fs for std::filesystem on GCC 8 and add zma to RPM spec
2026-02-26 08:02:26 -05:00
jinclude.h
Migrate svn to git
2013-03-17 00:45:21 +01:00
zm_analysis_thread.cpp
Wait on the packetqueue condition instead of sleeping. Should help analysis keep up with decoding better and offer faster shutdown.
2026-02-04 20:44:17 -05:00
zm_analysis_thread.h
Add Join() function
2024-10-26 14:29:40 -04:00
zm_box.h
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zm_buffer.cpp
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2024-03-26 13:43:58 -05:00
zm_buffer.h
fix: prevent null pointer dereference in Buffer::tidy()
2026-02-02 20:34:33 -05:00
zm_camera.cpp
fix: add DTS backward jump detection in ffmpeg camera capture
2026-03-29 09:52:00 -04:00
zm_camera.h
fix: add DTS backward jump detection in ffmpeg camera capture
2026-03-29 09:52:00 -04:00
zm_comms.cpp
fix: address multiple bugs across core source files
2026-02-03 10:18:49 -05:00
zm_comms.h
fix: correct socket copy constructor and buffer overflow in recv
2026-02-02 20:44:01 -05:00
zm_config_data.h.in
fix: add www-data to video group and font path fallback refs #4642
2026-02-23 18:19:20 -05:00
zm_config.cpp
fix: address multiple bugs across core source files
2026-02-03 10:18:49 -05:00
zm_config.h
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zm_crypt.cpp
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zm_crypt.h
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2024-03-26 13:43:58 -05:00
zm_crypto_generics.h
Misc: Rename namespace ZM to zm
2021-06-06 19:11:11 +02:00
zm_crypto_gnutls.h
Crypto: Implement SHA1 hashing
2021-05-30 22:56:21 +02:00
zm_crypto_openssl.h
Crypto: Implement SHA1 hashing
2021-05-30 22:56:21 +02:00
zm_db.cpp
fix: address multiple bugs across core source files
2026-02-03 10:18:49 -05:00
zm_db.h
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2024-03-26 13:43:58 -05:00
zm_decoder_thread.cpp
Wait on the packetqueue condition instead of sleeping. Should help analysis keep up with decoding better and offer faster shutdown.
2026-02-04 20:44:17 -05:00
zm_decoder_thread.h
Add Join() function
2024-10-26 14:29:40 -04:00
zm_define.h
zm_define: Include cstddef so we have size_t
2021-05-16 16:42:58 +02:00
zm_event_tag.cpp
fix: address multiple bugs across core source files
2026-02-03 10:18:49 -05:00
zm_event_tag.h
Add tags support to events.
2025-07-05 08:09:09 -04:00
zm_event.cpp
fix: HLS fragment tracking, live playback, and fallback handling
2026-04-14 20:57:46 -04:00
zm_event.h
fix: resolve Event::Run thread hang preventing zmc clean shutdown
2026-02-12 23:00:59 -05:00
zm_eventstream.cpp
fix: prevent segfault when MPEG stream codec fails to open
2026-03-05 02:15:08 +00:00
zm_eventstream.h
refactor: remove unused reuse_image_ member to keep changes minimal
2026-02-11 04:20:55 +00:00
zm_exception.cpp
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zm_exception.h
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2024-03-26 13:43:58 -05:00
zm_ffmpeg_camera.cpp
perf: default ffmpeg decoder thread_count to 2
2026-04-15 15:58:44 -04:00
zm_ffmpeg_camera.h
Cleanup hw_pix_fmt and get_hw_format
2026-01-26 14:40:10 -05:00
zm_ffmpeg_input.cpp
fix: Handle incomplete.mp4 in cpp file.
2026-03-06 12:33:25 -05:00
zm_ffmpeg_input.h
Cleanup constructor and add the new codec_data stuff to try out multiple codecs
2025-09-22 09:52:25 -04:00
zm_ffmpeg_output.cpp
fix: add null check and fix error message in FFmpeg_Output
2026-02-03 11:03:17 -05:00
zm_ffmpeg_output.h
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zm_ffmpeg.cpp
Add mpeg4 as some older cameras that use are still funcitoning
2026-02-05 09:08:02 -05:00
zm_ffmpeg.h
Cleanup hw_pix_fmt and get_hw_format
2026-01-26 14:40:10 -05:00
zm_fifo_debug.cpp
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zm_fifo_debug.h
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2024-03-26 13:43:58 -05:00
zm_fifo_stream.cpp
fix: correct error message and add null check in FifoStream
2026-02-03 11:36:53 -05:00
zm_fifo_stream.h
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2024-03-26 13:43:58 -05:00
zm_fifo.cpp
fix: address multiple bugs in eventstream, fifo, and monitor
2026-02-02 23:24:08 -05:00
zm_fifo.h
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2024-03-26 13:43:58 -05:00
zm_file_camera.cpp
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zm_file_camera.h
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2024-03-26 13:43:58 -05:00
zm_font.cpp
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2024-03-26 13:43:58 -05:00
zm_font.h
Utils: Add our own ASSERT macro
2021-05-30 21:41:58 +02:00
zm_frame.cpp
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zm_frame.h
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2024-03-26 13:43:58 -05:00
zm_group_permission.cpp
fix: resolve role-based group permissions not granting stream access
2026-03-09 15:07:14 -04:00
zm_group_permission.h
fix: resolve role-based group permissions not granting stream access
2026-03-09 15:07:14 -04:00
zm_group.cpp
fix: correct typo in Group warning message
2026-02-03 11:42:14 -05:00
zm_group.h
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2024-03-26 13:43:58 -05:00
zm_image_analyser.cpp
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2024-03-26 13:43:58 -05:00
zm_image_analyser.h
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2024-03-26 13:43:58 -05:00
zm_image.cpp
fix: scan-line polygon fill incorrectly filled non-convex polygon gaps
2026-04-09 09:33:52 -04:00
zm_image.h
perf: reuse persistent blend buffer in Image::Blend()
2026-02-07 22:32:56 -05:00
zm_jpeg.cpp
Change various cases of int img_buffer_size to size_t
2025-07-19 14:18:32 -04:00
zm_jpeg.h
Change various cases of int img_buffer_size to size_t
2025-07-19 14:18:32 -04:00
zm_libvlc_camera.cpp
fix: add null check before calling libvlc_media_player_stop in Terminate
2026-02-03 11:49:58 -05:00
zm_libvlc_camera.h
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2024-03-26 13:43:58 -05:00
zm_libvnc_camera.cpp
fix: fix typo, add null check, and use correct free function in VncCamera
2026-02-03 12:09:44 -05:00
zm_libvnc_camera.h
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2024-03-26 13:43:58 -05:00
zm_line.h
Polygon: Implement clipping to a boundary box
2021-05-16 19:41:45 +02:00
zm_local_camera.cpp
fix: treat ENOTTY like EINVAL when querying V4L2 JPEG compression options
2026-04-07 20:48:57 -04:00
zm_local_camera.h
Make most Fatals into Errors
2026-01-29 18:50:42 -05:00
zm_logger.cpp
feat: add AUDIT logging level for tracking administrative changes
2026-02-23 18:19:20 -05:00
zm_logger.h
feat: add AUDIT logging level for tracking administrative changes
2026-02-23 18:19:20 -05:00
zm_mem_utils.h
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2024-03-26 13:43:58 -05:00
zm_monitor_amcrest.cpp
fix: add HAVE_LIBCURL preprocessor guards to fix ZM_NO_CURL=ON build
2026-03-05 02:13:59 +00:00
zm_monitor_go2rtc.cpp
fix: add HAVE_LIBCURL preprocessor guards to fix ZM_NO_CURL=ON build
2026-03-05 02:13:59 +00:00
zm_monitor_janus.cpp
fix: add HAVE_LIBCURL preprocessor guards to fix ZM_NO_CURL=ON build
2026-03-05 02:13:59 +00:00
zm_monitor_monitorlink.cpp
fix: call disconnect() in MonitorLink::connect() before reopening map_fd
2026-04-07 20:48:42 -04:00
zm_monitor_onvif.cpp
fix: clean up ONVIF subscription before re-Subscribe to stop NotAuthorized loop
2026-04-28 21:36:49 -04:00
zm_monitor_onvif.h
fix: correct WSA Action for PullMessages and throttle auth error logging
2026-02-09 11:34:44 -05:00
zm_monitor_permission.cpp
fix: resolve role-based group permissions not granting stream access
2026-03-09 15:07:14 -04:00
zm_monitor_permission.h
fix: resolve role-based group permissions not granting stream access
2026-03-09 15:07:14 -04:00
zm_monitor_rtsp2web.cpp
fix: add HAVE_LIBCURL preprocessor guards to fix ZM_NO_CURL=ON build
2026-03-05 02:13:59 +00:00
zm_monitor.cpp
perf: skip clearPackets early-returns and allow drop-to-iterator-keyframe
2026-04-29 19:39:04 -04:00
zm_monitor.h
refactor: move HAVE_LIBCURL guards inside class definitions as stubs
2026-03-05 02:41:06 +00:00
zm_monitorlink_expression.cpp
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zm_monitorlink_expression.h
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2024-03-26 13:43:58 -05:00
zm_monitorlink_token.h
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2024-03-26 13:43:58 -05:00
zm_monitorstream.cpp
feat: install SIGPIPE handler in zms for clean browser-disconnect shutdown
2026-04-18 09:53:23 -04:00
zm_monitorstream.h
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2024-03-26 13:43:58 -05:00
zm_mpeg.cpp
fix: prevent segfault when MPEG stream codec fails to open
2026-03-05 02:15:08 +00:00
zm_mpeg.h
fix: prevent segfault when MPEG stream codec fails to open
2026-03-05 02:15:08 +00:00
zm_mqtt.cpp
fix: use mosquitto_strerror() for MQTT error codes
2026-02-02 20:53:00 -05:00
zm_mqtt.h
Fix definition of on_publish
2024-10-29 13:30:29 -04:00
zm_packet.cpp
perf: add monotonic queue_index to ZMPacket for O(1) iterator lookup
2026-02-07 23:41:48 -05:00
zm_packet.h
perf: replace sleep polling with condition wait in Event::Run()
2026-02-15 15:38:07 -05:00
zm_packetqueue.cpp
perf: skip clearPackets early-returns and allow drop-to-iterator-keyframe
2026-04-29 19:39:04 -04:00
zm_packetqueue.h
perf: skip clearPackets early-returns and allow drop-to-iterator-keyframe
2026-04-29 19:39:04 -04:00
zm_poll_thread.cpp
fix: call Stop() before restarting in PollThread::Start()
2026-02-03 12:13:29 -05:00
zm_poll_thread.h
Adds ONVIF Motion Detection Support
2022-01-06 16:45:15 -06:00
zm_poly.cpp
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zm_poly.h
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2024-03-26 13:43:58 -05:00
zm_regexp.cpp
Port to PCRE2 (Closes: #3384).
2025-02-26 21:04:32 +11:00
zm_regexp.h
Port to PCRE2 (Closes: #3384).
2025-02-26 21:04:32 +11:00
zm_remote_camera_http.cpp
fix: correct inet_ntop buffer size in RemoteCameraHttp
2026-02-04 17:41:37 -05:00
zm_remote_camera_http.h
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zm_remote_camera_nvsocket.cpp
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zm_remote_camera_nvsocket.h
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2024-03-26 13:43:58 -05:00
zm_remote_camera_rtsp.cpp
Removing avcodec_close, avcodec_free_context is replacement and been around since 2014, so should be no reason to version test.
2024-09-14 11:06:55 +10:00
zm_remote_camera_rtsp.h
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zm_remote_camera.cpp
fix: check for empty path before accessing first character
2026-02-03 12:25:21 -05:00
zm_remote_camera.h
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2024-03-26 13:43:58 -05:00
zm_rgb.h
Fix brg_to_yuv
2025-09-18 10:07:50 -04:00
zm_rtp_ctrl.cpp
fix: correct NTP timestamp type truncation in RtpCtrlThread
2026-02-03 12:34:21 -05:00
zm_rtp_ctrl.h
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2024-03-26 13:43:58 -05:00
zm_rtp_data.cpp
fix: correct type mismatches in RtpDataThread
2026-02-03 12:45:56 -05:00
zm_rtp_data.h
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2024-03-26 13:43:58 -05:00
zm_rtp_source.cpp
fix: prevent division by zero in RtpSource::updateRtcpData
2026-02-03 12:47:14 -05:00
zm_rtp_source.h
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zm_rtp.cpp
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zm_rtp.h
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zm_rtsp_auth.cpp
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zm_rtsp_auth.h
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2024-03-26 13:43:58 -05:00
zm_rtsp_server_adts_source.cpp
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zm_rtsp_server_adts_source.h
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2024-03-26 13:43:58 -05:00
zm_rtsp_server_authenticator.h
Fix Authenticate as nonce is now internal
2026-01-09 11:43:15 -05:00
zm_rtsp_server_device_source.cpp
Replace C-style casts with C++ static_cast for intmax_t
2026-01-05 13:36:16 +00:00
zm_rtsp_server_device_source.h
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2024-03-26 13:43:58 -05:00
zm_rtsp_server_fifo_adts_source.cpp
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2024-03-26 13:43:58 -05:00
zm_rtsp_server_fifo_adts_source.h
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2024-03-26 13:43:58 -05:00
zm_rtsp_server_fifo_audio_source.cpp
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2024-03-26 13:43:58 -05:00
zm_rtsp_server_fifo_audio_source.h
Add av1 support
2026-01-31 12:43:03 -05:00
zm_rtsp_server_fifo_av1_source.cpp
Add zm_rtsp_server_fifo_av1_source
2026-01-31 16:19:38 -05:00
zm_rtsp_server_fifo_av1_source.h
Add zm_rtsp_server_fifo_av1_source
2026-01-31 16:19:38 -05:00
zm_rtsp_server_fifo_h264_source.cpp
fix: prevent underflow and type mismatch in H264 fifo source
2026-01-30 15:30:40 -05:00
zm_rtsp_server_fifo_h264_source.h
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zm_rtsp_server_fifo_source.cpp
fix: multiple issues in zm_rtsp_server_fifo_source
2026-01-30 14:49:53 -05:00
zm_rtsp_server_fifo_source.h
fix: multiple issues in zm_rtsp_server_fifo_source
2026-01-30 14:49:53 -05:00
zm_rtsp_server_fifo_video_source.cpp
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2024-03-26 13:43:58 -05:00
zm_rtsp_server_fifo_video_source.h
Add av1 support
2026-01-31 12:43:03 -05:00
zm_rtsp_server_frame.h
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2024-03-26 13:43:58 -05:00
zm_rtsp_server_server_media_subsession.cpp
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2024-03-26 13:43:58 -05:00
zm_rtsp_server_server_media_subsession.h
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2024-03-26 13:43:58 -05:00
zm_rtsp_server_unicast_server_media_subsession.cpp
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2024-03-26 13:43:58 -05:00
zm_rtsp_server_unicast_server_media_subsession.h
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2024-03-26 13:43:58 -05:00
zm_rtsp_server.cpp
feat: add G.711 μ-law (PCMU) audio support to zm_rtsp_server
2026-04-19 23:06:36 -04:00
zm_rtsp.cpp
fix: add null checks in RtspThread to prevent crashes
2026-02-03 12:28:30 -05:00
zm_rtsp.h
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2024-03-26 13:43:58 -05:00
zm_sdp.cpp
fix: address multiple issues in SessionDescriptor::generateFormatContext
2026-02-03 13:34:17 -05:00
zm_sdp.h
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2024-03-26 13:43:58 -05:00
zm_sendfile.h
Fix complaint
2023-01-18 16:01:42 -05:00
zm_server.cpp
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zm_server.h
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2024-03-26 13:43:58 -05:00
zm_signal.cpp
feat: install SIGPIPE handler in zms for clean browser-disconnect shutdown
2026-04-18 09:53:23 -04:00
zm_signal.h
feat: install SIGPIPE handler in zms for clean browser-disconnect shutdown
2026-04-18 09:53:23 -04:00
zm_storage.cpp
fix: add empty checks and use safer string functions in Storage
2026-02-03 12:30:06 -05:00
zm_storage.h
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2024-03-26 13:43:58 -05:00
zm_stream.cpp
fix: prevent segfault when MPEG stream codec fails to open
2026-03-05 02:15:08 +00:00
zm_stream.h
fix: prevent segfault in MonitorStream::processCommand from shared memory race
2026-02-23 18:19:20 -05:00
zm_swscale.cpp
fix: correct copy-paste error in pixel format warning
2026-02-03 16:47:43 -05:00
zm_swscale.h
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2024-03-26 13:43:58 -05:00
zm_tag.cpp
Add tags support to events.
2025-07-05 08:09:09 -04:00
zm_tag.h
Add tags support to events.
2025-07-05 08:09:09 -04:00
zm_time.cpp
refactor: move format_absolute_time_iso8601 from zm_monitor_onvif to zm_time
2026-02-12 16:53:39 -05:00
zm_time.h
refactor: move format_absolute_time_iso8601 from zm_monitor_onvif to zm_time
2026-02-12 16:53:39 -05:00
zm_uri.cpp
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2024-03-26 13:43:58 -05:00
zm_uri.h
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2024-03-26 13:43:58 -05:00
zm_user.cpp
fix: resolve role-based group permissions not granting stream access
2026-03-09 15:07:14 -04:00
zm_user.h
fix: resolve role-based group permissions not granting stream access
2026-03-09 15:07:14 -04:00
zm_utils.cpp
Fix appending %% instead of % when uri decoding. Add test for URIEncode
2026-02-04 20:45:46 -05:00
zm_utils.h
fix: shell-escape %EC% token to prevent command injection
2026-02-15 15:38:07 -05:00
zm_vector2.h
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2024-03-26 13:43:58 -05:00
zm_videostore.cpp
fix: HLS fragment tracking, live playback, and fallback handling
2026-04-14 20:57:46 -04:00
zm_videostore.h
fix: HLS fragment tracking, live playback, and fallback handling
2026-04-14 20:57:46 -04:00
zm_zone_stats.h
perf: reduce logging overhead and string temporaries in Analyse()
2026-02-07 22:52:15 -05:00
zm_zone.cpp
fix: store zone thresholds as percentages and convert to pixels at runtime
2026-03-09 17:16:56 -04:00
zm_zone.h
feat: store zone coordinates as percentages for resolution independence (src only)
2026-02-12 18:06:56 -05:00
zm.cpp
Move exit_zms to exit_zm in zm.cpp
2026-01-05 16:36:36 -05:00
zm.h
Move exit_zms to exit_zm in zm.cpp
2026-01-05 16:36:36 -05:00
zma.cpp
fix: add missing unistd.h include in zma.cpp for FreeBSD build
2026-03-04 09:23:38 -05:00
zmbenchmark.cpp
Format code using astyle google format
2024-03-26 13:43:58 -05:00
zmc.cpp
fix: prevent empty events in ONDEMAND mode and fix VideoStore fd/codec leaks
2026-04-10 08:40:26 -04:00
zms.cpp
feat: install SIGPIPE handler in zms for clean browser-disconnect shutdown
2026-04-18 09:53:23 -04:00
zmu.cpp
Remove unused loop index in zmu list output
2025-12-31 22:29:37 +11:00