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initialize video_first_pts and when setting it need to specify microseconds otherwise we get nanoseconds. White space.

This commit is contained in:
Isaac Connor 2021-09-21 14:29:05 -04:00
parent 1cb9f98e9b
commit 30fa641186
4 changed files with 10 additions and 7 deletions
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4
src/zm_ffmpeg_camera.cpp
View File

@ -231,8 +231,8 @@ int FfmpegCamera::Capture(std::shared_ptr<ZMPacket> &zm_packet) {
zm_packet->set_packet(&packet);
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 (packet.pts != AV_NOPTS_VALUE) {
if (stream == mVideoStream) {
if (mFirstVideoPTS == AV_NOPTS_VALUE)
mFirstVideoPTS = packet.pts;

2
src/zm_packet.cpp
View File

@ -83,7 +83,7 @@ ZMPacket::ZMPacket(ZMPacket &p) :
av_init_packet(&packet);
packet.size = 0;
packet.data = nullptr;
if ( zm_av_packet_ref(&packet, &p.packet) < 0 ) {
if (zm_av_packet_ref(&packet, &p.packet) < 0) {
Error("error refing packet");
}
}

3
src/zm_packet.h
View File

@ -66,7 +66,7 @@ class ZMPacket {
Image *set_image(Image *);
int is_keyframe() { return keyframe; };
int decode( AVCodecContext *ctx );
int decode(AVCodecContext *ctx);
explicit ZMPacket(Image *image, SystemTimePoint tv);
explicit ZMPacket(ZMPacket &packet);
ZMPacket();
@ -88,6 +88,7 @@ class ZMLockedPacket {
lck_(packet_->mutex_, std::defer_lock),
locked(false) {
}
~ZMLockedPacket() {
if (locked) unlock();
}

8
src/zm_videostore.cpp
View File

@ -93,6 +93,7 @@ VideoStore::VideoStore(
converted_in_samples(nullptr),
filename(filename_in),
format(format_in),
video_first_pts(0),
video_first_dts(0),
audio_first_pts(0),
audio_first_dts(0),
@ -990,23 +991,24 @@ int VideoStore::writeVideoFramePacket(const std::shared_ptr<ZMPacket> &zm_packet
frame->pkt_duration = 0;
if (!video_first_pts) {
video_first_pts = zm_packet->timestamp.time_since_epoch().count();
video_first_pts = static_cast<int64>(std::chrono::duration_cast<Microseconds>(zm_packet->timestamp.time_since_epoch()).count());
Debug(2, "No video_first_pts, set to (%" PRId64 ") secs(%.2f)",
video_first_pts,
FPSeconds(zm_packet->timestamp.time_since_epoch()).count());
frame->pts = 0;
} else {
Microseconds useconds = std::chrono::duration_cast<Microseconds>(
zm_packet->timestamp - SystemTimePoint(Microseconds(video_first_pts)));
frame->pts = av_rescale_q(useconds.count(), AV_TIME_BASE_Q, video_out_ctx->time_base);
Debug(2,
"Setting pts for frame(%d) to (%" PRId64 ") from (start %" PRIu64 " - %" PRIu64 " - us(%" PRIi64 ") @ %d/%d",
"Setting pts for frame(%d) to (%" PRId64 ") from (zm_packet->timestamp(%" PRIi64 " - first %" PRId64 " us %" PRId64 " ) @ %d/%d",
frame_count,
frame->pts,
static_cast<int64>(std::chrono::duration_cast<Microseconds>(zm_packet->timestamp.time_since_epoch()).count()),
video_first_pts,
static_cast<int64>(std::chrono::duration_cast<Microseconds>(useconds).count()),
static_cast<int64>(std::chrono::duration_cast<Microseconds>(zm_packet->timestamp.time_since_epoch()).count()),
video_out_ctx->time_base.num,
video_out_ctx->time_base.den);
}