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zoneminder/src/zm_ffmpeg_camera.cpp

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//
// ZoneMinder Ffmpeg Camera Class Implementation
// Copyright (C) 2001-2008 Philip Coombes
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
#include "zm_ffmpeg_camera.h"
#include "zm_ffmpeg_input.h"
#include "zm_monitor.h"
#include "zm_packet.h"
#include "zm_signal.h"
#include "zm_utils.h"
#include "url.hpp"
extern "C" {
#include <libavutil/time.h>
#include <libavdevice/avdevice.h>
}
TimePoint start_read_time;
FfmpegCamera::FfmpegCamera(
const Monitor *monitor,
const std::string &p_path,
const std::string &p_second_path,
const std::string &p_user,
const std::string &p_pass,
const std::string &p_method,
const std::string &p_options,
int p_width,
int p_height,
int p_colours,
int p_brightness,
int p_contrast,
int p_hue,
int p_colour,
bool p_capture,
bool p_record_audio,
const std::string &p_hwaccel_name,
const std::string &p_hwaccel_device) :
Camera(
monitor,
FFMPEG_SRC,
p_width,
p_height,
p_colours,
ZM_SUBPIX_ORDER_DEFAULT_FOR_COLOUR(p_colours),
p_brightness,
p_contrast,
p_hue,
p_colour,
p_capture,
p_record_audio
),
mPath(p_path),
mSecondPath(p_second_path),
mUser(p_user),
mPass(p_pass),
mMethod(p_method),
mOptions(p_options),
hwaccel_name(p_hwaccel_name),
hwaccel_device(p_hwaccel_device),
mSecondInput(nullptr),
frameCount(0),
use_hwaccel(true),
mConvertContext(nullptr),
error_count(0),
stream_width(0),
stream_height(0) {
mMaskedPath = remove_authentication(mPath);
mMaskedSecondPath = remove_authentication(mSecondPath);
if ( capture ) {
FFMPEGInit();
}
#if HAVE_LIBAVUTIL_HWCONTEXT_H
hw_device_ctx = nullptr;
hw_pix_fmt = AV_PIX_FMT_NONE;
#endif
/* Has to be located inside the constructor so other components such as zma
* will receive correct colours and subpixel order */
if ( colours == ZM_COLOUR_RGB32 ) {
subpixelorder = ZM_SUBPIX_ORDER_RGBA;
imagePixFormat = AV_PIX_FMT_RGBA;
} else if ( colours == ZM_COLOUR_RGB24 ) {
subpixelorder = ZM_SUBPIX_ORDER_RGB;
imagePixFormat = AV_PIX_FMT_RGB24;
} else if ( colours == ZM_COLOUR_GRAY8 ) {
subpixelorder = ZM_SUBPIX_ORDER_NONE;
imagePixFormat = AV_PIX_FMT_GRAY8;
} else {
Panic("Unexpected colours: %d", colours);
}
packet = av_packet_ptr{av_packet_alloc()};
} // FfmpegCamera::FfmpegCamera
FfmpegCamera::~FfmpegCamera() {
Close();
FFMPEGDeInit();
}
int FfmpegCamera::PrimeCapture() {
start_read_time = std::chrono::steady_clock::now();
Close();
mVideoStreamId = -1;
mAudioStreamId = -1;
Debug(1, "Priming capture from %s", mMaskedPath.c_str());
return OpenFfmpeg();
}
int FfmpegCamera::PreCapture() {
return 0;
}
int FfmpegCamera::Capture(std::shared_ptr<ZMPacket> &zm_packet) {
if (!mIsPrimed) return -1;
start_read_time = std::chrono::steady_clock::now();
int ret;
AVFormatContext *formatContextPtr;
int64_t lastPTS = -1;
if ( mSecondFormatContext and mAudioStream and
(
av_rescale_q(mLastAudioPTS, mAudioStream->time_base, AV_TIME_BASE_Q)
<
av_rescale_q(mLastVideoPTS, mVideoStream->time_base, AV_TIME_BASE_Q)
) ) {
// if audio stream is behind video stream, then read from audio, otherwise video
formatContextPtr = mSecondFormatContext;
lastPTS = mLastAudioPTS;
Debug(4, "Using audio input because audio PTS %" PRId64 " < video PTS %" PRId64,
av_rescale_q(mLastAudioPTS, mAudioStream->time_base, AV_TIME_BASE_Q),
av_rescale_q(mLastVideoPTS, mVideoStream->time_base, AV_TIME_BASE_Q)
);
if ((ret = av_read_frame(formatContextPtr, packet.get())) < 0) {
if (
// Check if EOF.
(ret == AVERROR_EOF || (formatContextPtr->pb && formatContextPtr->pb->eof_reached)) ||
// Check for Connection failure.
(ret == -110)
) {
Info("Unable to read packet from stream %d: error %d \"%s\".",
packet->stream_index, ret, av_make_error_string(ret).c_str());
} else {
logPrintf(Logger::ERROR + monitor->Importance(),
"Unable to read packet from stream %d: error %d \"%s\".",
packet->stream_index, ret, av_make_error_string(ret).c_str());
}
return -1;
}
} else {
formatContextPtr = mFormatContext;
Debug(4, "Using video input because %" PRId64 " >= %" PRId64,
(mAudioStream?av_rescale_q(mLastAudioPTS, mAudioStream->time_base, AV_TIME_BASE_Q):0),
av_rescale_q(mLastVideoPTS, mVideoStream->time_base, AV_TIME_BASE_Q)
);
if ((ret = av_read_frame(formatContextPtr, packet.get())) < 0) {
if (
// Check if EOF.
(ret == AVERROR_EOF || (formatContextPtr->pb && formatContextPtr->pb->eof_reached)) ||
// Check for Connection failure.
(ret == -110)
) {
Info("Unable to read packet from stream %d: error %d \"%s\".",
packet->stream_index, ret, av_make_error_string(ret).c_str());
} else {
logPrintf(Logger::ERROR + monitor->Importance(),
"Unable to read packet from stream %d: error %d \"%s\".",
packet->stream_index, ret, av_make_error_string(ret).c_str());
}
return -1;
}
if ( packet->stream_index == mVideoStreamId) {
lastPTS = mLastVideoPTS;
} else if (packet->stream_index == mAudioStreamId) {
lastPTS = mLastAudioPTS;
} else {
Debug(1, "Have packet (%d) which isn't for video (%d) or audio stream (%d).", packet->stream_index, mVideoStreamId, mAudioStreamId);
return 0;
}
}
AVStream *stream = formatContextPtr->streams[packet->stream_index];
ZM_DUMP_STREAM_PACKET(stream, packet, "ffmpeg_camera in");
if ((packet->pts != AV_NOPTS_VALUE) and (lastPTS >= 0)) {
if (packet->pts < 0) {
// 32-bit wrap around?
Info("Suspected 32bit wraparound in input pts. %" PRId64, packet->pts);
return -1;
} else if (packet->pts - lastPTS < -10*stream->time_base.den) {
if (!monitor->WallClockTimestamps()) {
// -10 is for 10 seconds. Avigilon cameras seem to jump around by about 36 constantly
double pts_time = static_cast<double>(av_rescale_q(packet->pts, stream->time_base, AV_TIME_BASE_Q)) / AV_TIME_BASE;
double last_pts_time = static_cast<double>(av_rescale_q(lastPTS, stream->time_base, AV_TIME_BASE_Q)) / AV_TIME_BASE;
logPrintf(Logger::WARNING + monitor->Importance(), "Stream pts jumped back in time too far. pts %.2f - last pts %.2f = %.2f > 10seconds",
pts_time, last_pts_time, pts_time - last_pts_time);
}
if (error_count > 5)
return -1;
error_count += 1;
return 0;
}
}
av_packet_guard pkt_guard{packet};
zm_packet->codec_type = stream->codecpar->codec_type;
bytes += packet->size;
zm_packet->set_packet(packet.get());
zm_packet->stream = stream;
zm_packet->pts = av_rescale_q(packet->pts, stream->time_base, AV_TIME_BASE_Q);
if (packet->pts != AV_NOPTS_VALUE) {
if (stream == mVideoStream) {
if (mFirstVideoPTS == AV_NOPTS_VALUE)
mFirstVideoPTS = packet->pts;
mLastVideoPTS = packet->pts - mFirstVideoPTS;
} else if (stream == mAudioStream) {
if (mFirstAudioPTS == AV_NOPTS_VALUE)
mFirstAudioPTS = packet->pts;
mLastAudioPTS = packet->pts - mFirstAudioPTS;
}
}
return 1;
} // FfmpegCamera::Capture
int FfmpegCamera::PostCapture() {
// Nothing to do here
return 0;
}
int FfmpegCamera::OpenFfmpeg() {
int ret = 0;
error_count = 0;
#if LIBAVFORMAT_VERSION_CHECK(59, 16, 100, 16, 100)
const
#endif
AVInputFormat *input_format = nullptr;
// Handle options
AVDictionary *opts = nullptr;
if (!mOptions.empty()) {
ret = av_dict_parse_string(&opts, mOptions.c_str(), "=", ",", 0);
if (ret < 0) {
Warning("Could not parse ffmpeg input options '%s'", mOptions.c_str());
}
}
// Set transport method as specified by method field, rtpUni is default
std::string protocol = mPath.substr(0, 4);
protocol = StringToUpper(protocol);
if ( protocol == "RTSP" ) {
const std::string method = Method();
if ( method == "rtpMulti" ) {
ret = av_dict_set(&opts, "rtsp_transport", "udp_multicast", 0);
} else if ( method == "rtpRtsp" ) {
ret = av_dict_set(&opts, "rtsp_transport", "tcp", 0);
} else if ( method == "rtpRtspHttp" ) {
ret = av_dict_set(&opts, "rtsp_transport", "http", 0);
} else if ( method == "rtpUni" ) {
ret = av_dict_set(&opts, "rtsp_transport", "udp", 0);
} else {
Warning("Unknown method (%s)", method.c_str());
}
if (ret < 0) {
Warning("Could not set rtsp_transport method '%s'", method.c_str());
}
} else if (protocol == "V4L2") {
avdevice_register_all();
input_format = av_find_input_format("video4linux2");
if (!input_format) {
Error("Cannot find v4l2 input format");
return -1;
}
mPath = mPath.substr(7);
} // end if RTSP
Debug(1, "Calling avformat_open_input for %s", mMaskedPath.c_str());
mFormatContext = avformat_alloc_context();
if (!mFormatContext) {
Error("Unable to allocate format context");
av_dict_free(&opts);
return -1;
}
mFormatContext->interrupt_callback.callback = FfmpegInterruptCallback;
mFormatContext->interrupt_callback.opaque = this;
mFormatContext->flags |= AVFMT_FLAG_NOBUFFER | AVFMT_FLAG_FLUSH_PACKETS;
if (mUser.length() > 0) {
try {
Url url(mPath);
if (url.user_info().empty()) {
url.user_info(mUser + ":" + mPass);
mPath = url.str();
Debug(1, "Rebuilt URI with encoded parameters: '%s'", mMaskedPath.c_str());
}
} catch (const Url::parse_error &e) {
Debug(1, "Could not parse path as URL: %s", e.what());
}
}
ret = avformat_open_input(&mFormatContext, mPath.c_str(), input_format, &opts);
if (ret != 0) {
logPrintf(Logger::ERROR + monitor->Importance(),
"Unable to open input %s due to: %s", mMaskedPath.c_str(),
av_make_error_string(ret).c_str());
avformat_close_input(&mFormatContext);
mFormatContext = nullptr;
av_dict_free(&opts);
return -1;
}
AVDictionaryEntry *e = nullptr;
while ((e = av_dict_get(opts, "", e, AV_DICT_IGNORE_SUFFIX)) != nullptr) {
Warning("Option %s not recognized by ffmpeg", e->key);
}
av_dict_free(&opts);
ret = avformat_find_stream_info(mFormatContext, nullptr);
if (ret < 0) {
Error("Unable to find stream info from %s due to: %s",
mMaskedPath.c_str(), av_make_error_string(ret).c_str());
avformat_close_input(&mFormatContext);
return -1;
}
// Find first video stream present, the one we want Might not be the first
mVideoStreamId = -1;
mAudioStreamId = -1;
for (unsigned int i=0; i < mFormatContext->nb_streams; i++) {
AVStream *stream = mFormatContext->streams[i];
zm_dump_stream_format(mFormatContext, i, 0, 0);
if (is_video_stream(stream)) {
if (!(stream->codecpar->width && stream->codecpar->height)) {
Warning("No width and height in video stream. Trying again");
continue;
}
if (mVideoStreamId == -1) {
mVideoStreamId = i;
mVideoStream = stream;
} else {
Debug(2, "Have another video stream.");
if (stream->codecpar->width == width and stream->codecpar->height == height) {
Debug(1, "Choosing alternate video stream because it matches our resolution.");
mVideoStreamId = i;
mVideoStream = stream;
} else {
stream->discard = AVDISCARD_ALL;
}
}
} else if (is_audio_stream(stream)) {
if (mAudioStreamId == -1) {
mAudioStreamId = i;
mAudioStream = mFormatContext->streams[i];
} else {
Debug(2, "Have another audio stream.");
}
} else {
Debug(1, "Unknown stream type for stream %d", i);
}
} // end foreach stream
if (mVideoStreamId == -1) {
avformat_close_input(&mFormatContext);
return -1;
}
Debug(3, "Found video stream at index %d, audio stream at index %d",
mVideoStreamId, mAudioStreamId);
const AVCodec *mVideoCodec = nullptr;
std::list<const CodecData *>codec_data = get_decoder_data(mVideoStream->codecpar->codec_id, monitor->DecoderName().c_str());
if (codec_data.size() == 0 and (!monitor->DecoderName().empty() and (monitor->DecoderName() != "auto"))) {
Warning("No decoder for codec %d found with name %s. Trying auto.", mVideoStream->codecpar->codec_id, monitor->DecoderName().c_str());
codec_data = get_decoder_data(mVideoStream->codecpar->codec_id, "auto");
}
for (auto it = codec_data.begin(); it != codec_data.end(); it ++) {
const CodecData *chosen_codec_data = *it;
Debug(1, "Found codec %s", chosen_codec_data->codec_name);
mVideoCodec = avcodec_find_decoder_by_name(chosen_codec_data->codec_name);
if (!mVideoCodec) {
mVideoCodec = avcodec_find_decoder(mVideoStream->codecpar->codec_id);
if (!mVideoCodec) {
// Try and get the codec from the codec context
Error("Can't find codec for video stream from %s", mMaskedPath.c_str());
continue;
}
}
mVideoCodecContext = avcodec_alloc_context3(mVideoCodec);
avcodec_parameters_to_context(mVideoCodecContext, mFormatContext->streams[mVideoStreamId]->codecpar);
mVideoCodecContext->framerate = mVideoStream->r_frame_rate;
mVideoCodecContext->sw_pix_fmt = chosen_codec_data->sw_pix_fmt;
// Set default options for this codec
if (chosen_codec_data->options_defaults) {
AVDictionary *opts_defaults = nullptr;
av_dict_parse_string(&opts_defaults, chosen_codec_data->options_defaults, "=", ",", 0);
AVDictionaryEntry *e = nullptr;
while ((e = av_dict_get(opts_defaults, "", e, AV_DICT_IGNORE_SUFFIX)) != nullptr) {
const AVDictionaryEntry *entry = av_dict_get(opts, e->key, nullptr, AV_DICT_MATCH_CASE);
if (!entry) {
int ret;
if ((ret = av_dict_set(&opts, e->key, e->value, 0)) < 0) {
Error("Couldn't set default Option %s set to %s", e->key, e->value);
}
Debug(1, "Option %s set to %s from default", e->key, e->value);
}
}
av_dict_free(&opts_defaults);
}
//Set user-specified options, which may override codec defaults
if (!mOptions.empty()) {
av_dict_parse_string(&opts, mOptions.c_str(), "=", ",", 0);
const AVDictionaryEntry *entry = av_dict_get(opts, "thread_count", nullptr, AV_DICT_MATCH_CASE);
if (entry) {
mVideoCodecContext->thread_count = std::stoul(entry->value);
Debug(1, "Setting codec thread_count to %d", mVideoCodecContext->thread_count);
av_dict_set(&opts, "thread_count", nullptr, AV_DICT_MATCH_CASE);
}
// reorder_queparse for avforpts, mOpcodec
av_dict_set(&opts, "reorder_queue_size", nullptr, AV_DICT_MATCH_CASE);
av_dict_set(&opts, "probesize", nullptr, AV_DICT_MATCH_CASE);
}
if (use_hwaccel && (hwaccel_name != "")) {
#if HAVE_LIBAVUTIL_HWCONTEXT_H
// 3.2 doesn't seem to have all the bits in place, so let's require 3.4 and up
#if LIBAVCODEC_VERSION_CHECK(57, 107, 0, 107, 0)
// Print out available types
enum AVHWDeviceType type = AV_HWDEVICE_TYPE_NONE;
while ((type = av_hwdevice_iterate_types(type)) != AV_HWDEVICE_TYPE_NONE)
Debug(1, "%s", av_hwdevice_get_type_name(type));
const char *hw_name = hwaccel_name.c_str();
type = av_hwdevice_find_type_by_name(hw_name);
if (type == AV_HWDEVICE_TYPE_NONE) {
Debug(1, "Device type %s is not supported.", hw_name);
} else {
Debug(1, "Found hwdevice %s", av_hwdevice_get_type_name(type));
}
#if LIBAVUTIL_VERSION_CHECK(56, 22, 0, 14, 0)
// Get hw_pix_fmt
for (int i = 0;; i++) {
const AVCodecHWConfig *config = avcodec_get_hw_config(mVideoCodec, i);
if (!config) {
Debug(1, "Decoder %s does not support config %d.",
mVideoCodec->name, i);
break;
}
if ((config->methods & AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX)
&& (config->device_type == type)
) {
hw_pix_fmt = config->pix_fmt;
Debug(1, "Decoder %s does support our type %s.",
mVideoCodec->name, av_hwdevice_get_type_name(type));
//break;
} else {
Debug(1, "Decoder %s hwConfig doesn't match our type: %s != %s, pix_fmt %s.",
mVideoCodec->name,
av_hwdevice_get_type_name(type),
av_hwdevice_get_type_name(config->device_type),
av_get_pix_fmt_name(config->pix_fmt)
);
}
} // end foreach hwconfig
#else
hw_pix_fmt = find_fmt_by_hw_type(type);
#endif
if (hw_pix_fmt != AV_PIX_FMT_NONE) {
Debug(1, "Selected hw_pix_fmt %d %s",
hw_pix_fmt, av_get_pix_fmt_name(hw_pix_fmt));
mVideoCodecContext->hwaccel_flags |= AV_HWACCEL_FLAG_IGNORE_LEVEL;
//if (!lavc_param->check_hw_profile)
mVideoCodecContext->hwaccel_flags |= AV_HWACCEL_FLAG_ALLOW_PROFILE_MISMATCH;
ret = av_hwdevice_ctx_create(&hw_device_ctx, type,
(hwaccel_device != "" ? hwaccel_device.c_str() : nullptr), nullptr, 0);
if (ret < 0 and hwaccel_device != "") {
ret = av_hwdevice_ctx_create(&hw_device_ctx, type, nullptr, nullptr, 0);
}
if (ret < 0) {
Error("Failed to create hwaccel device. %s", av_make_error_string(ret).c_str());
hw_pix_fmt = AV_PIX_FMT_NONE;
use_hwaccel = false;
} else {
Debug(1, "Created hwdevice for %s", hwaccel_device.c_str());
// Set opaque to point to our hw_pix_fmt so callback can access it
mVideoCodecContext->opaque = &hw_pix_fmt;
mVideoCodecContext->get_format = get_hw_format;
mVideoCodecContext->hw_device_ctx = av_buffer_ref(hw_device_ctx);
}
} else {
Debug(1, "Failed to find suitable hw_pix_fmt.");
}
#else
Debug(1, "AVCodec not new enough for hwaccel");
#endif
#else
Warning("HWAccel support not compiled in.");
#endif
} // end if hwaccel_name
ret = avcodec_open2(mVideoCodecContext, mVideoCodec, &opts);
e = nullptr;
while ((e = av_dict_get(opts, "", e, AV_DICT_IGNORE_SUFFIX)) != nullptr) {
Warning("Option %s not recognized by ffmpeg", e->key);
}
av_dict_free(&opts);
if (ret < 0) {
Error("Unable to open codec for video stream from %s", mMaskedPath.c_str());
avcodec_free_context(&mVideoCodecContext);
mVideoCodecContext = nullptr;
continue;
}
Debug(1, "Thread count? %d", mVideoCodecContext->thread_count);
zm_dump_codec(mVideoCodecContext);
break;
} // end foreach codec
if (!mVideoCodecContext) {
Warning("Failed to open codec");
return -1;
}
if (mAudioStreamId >= 0) {
const AVCodec *mAudioCodec = nullptr;
if (!(mAudioCodec = avcodec_find_decoder(mAudioStream->codecpar->codec_id))) {
Debug(1, "Can't find codec for audio stream from %s", mMaskedPath.c_str());
} else {
mAudioCodecContext = avcodec_alloc_context3(mAudioCodec);
avcodec_parameters_to_context(mAudioCodecContext, mAudioStream->codecpar);
zm_dump_stream_format((mSecondFormatContext?mSecondFormatContext:mFormatContext), mAudioStreamId, 0, 0);
// Open the codec
if (avcodec_open2(mAudioCodecContext, mAudioCodec, nullptr) < 0) {
Error("Unable to open codec for audio stream from %s", mMaskedPath.c_str());
return -1;
} // end if opened
} // end if found decoder
} else if (!monitor->GetSecondPath().empty()) {
Debug(1, "Trying secondary stream at %s", mMaskedSecondPath.c_str());
std::string secondPath = mSecondPath;
if (mUser.length() > 0) {
try {
Url url(mSecondPath);
if (url.user_info().empty()) {
url.user_info(mUser + ":" + mPass);
secondPath = url.str();
Debug(1, "Rebuilt secondary URI with encoded parameters");
} else {
Debug(1, "Secondary path already has authentication, not overriding");
}
} catch (const Url::parse_error &e) {
Debug(1, "Could not parse secondary path as URL: %s", e.what());
}
}
mSecondInput = zm::make_unique<FFmpeg_Input>();
if (mSecondInput->Open(secondPath.c_str()) > 0) {
mSecondFormatContext = mSecondInput->get_format_context();
mAudioStreamId = mSecondInput->get_audio_stream_id();
mAudioStream = mSecondInput->get_audio_stream();
mAudioCodecContext = mSecondInput->get_audio_codec_context();
} else {
Warning("Failed to open secondary input");
}
} // end if have audio stream
if (
((unsigned int)mVideoCodecContext->width != width)
||
((unsigned int)mVideoCodecContext->height != height)
) {
Debug(1, "Monitor dimensions are %dx%d but camera is sending %dx%d",
width, height, mVideoCodecContext->width, mVideoCodecContext->height);
}
mIsPrimed = true;
return 1;
} // int FfmpegCamera::OpenFfmpeg()
int FfmpegCamera::Close() {
mIsPrimed = false;
mLastVideoPTS = 0;
mLastAudioPTS = 0;
if (mVideoCodecContext) {
//avcodec_close(mVideoCodecContext);
avcodec_free_context(&mVideoCodecContext);
mVideoCodecContext = nullptr;
}
if (mAudioCodecContext and !mSecondInput) {
// If second input, then these will get freed in FFmpeg_Input's destructor
//avcodec_close(mAudioCodecContext);
avcodec_free_context(&mAudioCodecContext);
mAudioCodecContext = nullptr;
}
#if HAVE_LIBAVUTIL_HWCONTEXT_H
if ( hw_device_ctx ) {
av_buffer_unref(&hw_device_ctx);
}
#endif
if ( mFormatContext ) {
avformat_close_input(&mFormatContext);
mFormatContext = nullptr;
}
return 0;
} // end FfmpegCamera::Close
int FfmpegCamera::FfmpegInterruptCallback(void *ctx) {
if (zm_terminate) {
Debug(1, "Received terminate in cb");
return zm_terminate;
}
TimePoint now = std::chrono::steady_clock::now();
if (now - start_read_time > Seconds(10)) {
Debug(1, "timeout in ffmpeg camera now %" PRIi64 " - %" PRIi64 " > 10 s",
static_cast<int64>(std::chrono::duration_cast<Seconds>(now.time_since_epoch()).count()),
static_cast<int64>(std::chrono::duration_cast<Seconds>(start_read_time.time_since_epoch()).count()));
return 1;
}
return 0;
}
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