/* Must be called with object lock */ static void gst_timecodestamper_reset_timecode (GstTimeCodeStamper * timecodestamper) { GDateTime *jam = NULL; if (timecodestamper->first_tc && timecodestamper->first_tc->config.latest_daily_jam) jam = g_date_time_ref (timecodestamper->first_tc->config.latest_daily_jam); else if (timecodestamper->current_tc->config.latest_daily_jam) jam = g_date_time_ref (timecodestamper->current_tc->config.latest_daily_jam); gst_video_time_code_clear (timecodestamper->current_tc); /* FIXME: What if the buffer doesn't contain both top and bottom fields? */ gst_video_time_code_init (timecodestamper->current_tc, timecodestamper->vinfo.fps_n, timecodestamper->vinfo.fps_d, jam, timecodestamper->vinfo.interlace_mode == GST_VIDEO_INTERLACE_MODE_PROGRESSIVE ? 0 : GST_VIDEO_TIME_CODE_FLAGS_INTERLACED, 0, 0, 0, 0, 0); if (jam) g_date_time_unref (jam); if (timecodestamper->first_tc) { timecodestamper->current_tc->hours = timecodestamper->first_tc->hours; timecodestamper->current_tc->minutes = timecodestamper->first_tc->minutes; timecodestamper->current_tc->seconds = timecodestamper->first_tc->seconds; timecodestamper->current_tc->frames = timecodestamper->first_tc->frames; timecodestamper->current_tc->field_count = timecodestamper->first_tc->field_count; } gst_timecodestamper_set_drop_frame (timecodestamper); }
static GstFlowReturn gst_timecodestamper_transform_ip (GstBaseTransform * vfilter, GstBuffer * buffer) { GstTimeCodeStamper *timecodestamper = GST_TIME_CODE_STAMPER (vfilter); GstClockTime ref_time; GST_OBJECT_LOCK (timecodestamper); if (gst_buffer_get_video_time_code_meta (buffer) && !timecodestamper->override_existing) { GST_OBJECT_UNLOCK (timecodestamper); return GST_FLOW_OK; } else if (timecodestamper->override_existing) { gst_buffer_foreach_meta (buffer, remove_timecode_meta, NULL); } if (timecodestamper->source_clock != NULL) { if (timecodestamper->current_tc->hours == 0 && timecodestamper->current_tc->minutes == 0 && timecodestamper->current_tc->seconds == 0 && timecodestamper->current_tc->frames == 0) { guint64 hours, minutes, seconds, frames; /* Daily jam time */ ref_time = gst_clock_get_time (timecodestamper->source_clock); ref_time = ref_time % (24 * 60 * 60 * GST_SECOND); hours = ref_time / (GST_SECOND * 60 * 60); ref_time -= hours * GST_SECOND * 60 * 60; minutes = ref_time / (GST_SECOND * 60); ref_time -= minutes * GST_SECOND * 60; seconds = ref_time / GST_SECOND; ref_time -= seconds * GST_SECOND; /* Converting to frames for the whole ref_time might be inaccurate in case * we have a drop frame timecode */ frames = gst_util_uint64_scale (ref_time, timecodestamper->vinfo.fps_n, timecodestamper->vinfo.fps_d * GST_SECOND); GST_DEBUG_OBJECT (timecodestamper, "Initializing with %" G_GUINT64_FORMAT ":%" G_GUINT64_FORMAT ":%" G_GUINT64_FORMAT ":%" G_GUINT64_FORMAT "", hours, minutes, seconds, frames); gst_video_time_code_init (timecodestamper->current_tc, timecodestamper->vinfo.fps_n, timecodestamper->vinfo.fps_d, NULL, timecodestamper->vinfo.interlace_mode == GST_VIDEO_INTERLACE_MODE_PROGRESSIVE ? 0 : GST_VIDEO_TIME_CODE_FLAGS_INTERLACED, hours, minutes, seconds, 0, 0); gst_timecodestamper_set_drop_frame (timecodestamper); /* Do not use frames when initializing because maybe we have drop frame */ gst_video_time_code_add_frames (timecodestamper->current_tc, frames); } } else if (timecodestamper->source_clock == NULL) { GstClockTime timecode_time; timecode_time = gst_video_time_code_nsec_since_daily_jam (timecodestamper->current_tc); ref_time = gst_segment_to_stream_time (&vfilter->segment, GST_FORMAT_TIME, buffer->pts); if (timecode_time != GST_CLOCK_TIME_NONE && ref_time != GST_CLOCK_TIME_NONE && ((timecode_time > ref_time && timecode_time - ref_time > GST_SECOND) || (ref_time > timecode_time && ref_time - timecode_time > GST_SECOND))) { gchar *tc_str = gst_video_time_code_to_string (timecodestamper->current_tc); GST_WARNING_OBJECT (timecodestamper, "Time code %s (stream time %" GST_TIME_FORMAT ") has drifted more than one second from stream time %" GST_TIME_FORMAT, tc_str, GST_TIME_ARGS (timecode_time), GST_TIME_ARGS (ref_time)); g_free (tc_str); } } gst_buffer_add_video_time_code_meta (buffer, timecodestamper->current_tc); gst_video_time_code_increment_frame (timecodestamper->current_tc); GST_OBJECT_UNLOCK (timecodestamper); return GST_FLOW_OK; }
static gboolean gst_timecodestamper_sink_event (GstBaseTransform * trans, GstEvent * event) { gboolean ret = FALSE; GstTimeCodeStamper *timecodestamper = GST_TIME_CODE_STAMPER (trans); GST_DEBUG_OBJECT (trans, "received event %" GST_PTR_FORMAT, event); switch (GST_EVENT_TYPE (event)) { case GST_EVENT_SEGMENT: { GstSegment segment; guint64 frames; gchar *tc_str; gboolean notify = FALSE; GST_OBJECT_LOCK (timecodestamper); gst_event_copy_segment (event, &segment); if (segment.format != GST_FORMAT_TIME) { GST_OBJECT_UNLOCK (timecodestamper); GST_ERROR_OBJECT (timecodestamper, "Invalid segment format"); return FALSE; } if (GST_VIDEO_INFO_FORMAT (&timecodestamper->vinfo) == GST_VIDEO_FORMAT_UNKNOWN) { GST_ERROR_OBJECT (timecodestamper, "Received segment event without caps"); GST_OBJECT_UNLOCK (timecodestamper); return FALSE; } if (timecodestamper->first_tc_now && !timecodestamper->first_tc) { GDateTime *dt = g_date_time_new_now_local (); GstVideoTimeCode *tc; gst_timecodestamper_set_drop_frame (timecodestamper); tc = gst_video_time_code_new_from_date_time (timecodestamper-> vinfo.fps_n, timecodestamper->vinfo.fps_d, dt, timecodestamper->current_tc->config.flags, 0); g_date_time_unref (dt); timecodestamper->first_tc = tc; notify = TRUE; } frames = gst_util_uint64_scale (segment.time, timecodestamper->vinfo.fps_n, timecodestamper->vinfo.fps_d * GST_SECOND); gst_timecodestamper_reset_timecode (timecodestamper); gst_video_time_code_add_frames (timecodestamper->current_tc, frames); GST_DEBUG_OBJECT (timecodestamper, "Got %" G_GUINT64_FORMAT " frames when segment time is %" GST_TIME_FORMAT, frames, GST_TIME_ARGS (segment.time)); tc_str = gst_video_time_code_to_string (timecodestamper->current_tc); GST_DEBUG_OBJECT (timecodestamper, "New timecode is %s", tc_str); g_free (tc_str); GST_OBJECT_UNLOCK (timecodestamper); if (notify) g_object_notify (G_OBJECT (timecodestamper), "first-timecode"); break; } case GST_EVENT_CAPS: { GstCaps *caps; GST_OBJECT_LOCK (timecodestamper); gst_event_parse_caps (event, &caps); if (!gst_video_info_from_caps (&timecodestamper->vinfo, caps)) { GST_OBJECT_UNLOCK (timecodestamper); return FALSE; } gst_timecodestamper_reset_timecode (timecodestamper); GST_OBJECT_UNLOCK (timecodestamper); break; } default: break; } ret = GST_BASE_TRANSFORM_CLASS (gst_timecodestamper_parent_class)->sink_event (trans, event); return ret; }