From cc109157eb40d742628e6601c91ba1fd97d28856 Mon Sep 17 00:00:00 2001
From: Kasper Sauramo <kasper.sauramo@pm.me>
Date: Mon, 13 Oct 2025 22:09:41 +0300
Subject: [PATCH] send video and audio frames

---
 src/main.zig | 70 +++++++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 58 insertions(+), 12 deletions(-)

diff --git a/src/main.zig b/src/main.zig
index d074b10..12fd978 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -5,6 +5,11 @@ pub fn main() !void {
     var gpa = std.heap.GeneralPurposeAllocator(.{}){};
     const allocator = gpa.allocator();
 
+    var found_address_count: i32 = 0;
+    _ = omt.omt_discovery_getaddresses(&found_address_count);
+
+    std.debug.print("Found {d} omt addresses\n", .{found_address_count});
+
     std.log.info("Send test...", .{});
     omt.omt_setloggingfilename("omtsendtest.log");
 
@@ -35,7 +40,7 @@ pub fn main() !void {
     const frame_buffer = allocator.alloc(u8, data_length) catch undefined;
     defer allocator.free(frame_buffer);
 
-    const video_frame = omt.OMTMediaFrame{
+    var video_frame = omt.OMTMediaFrame{
         .Type = omt.OMTFrameType_Video,
         .Width = width,
         .Height = height,
@@ -54,7 +59,6 @@ pub fn main() !void {
         .FrameMetadataLength = 0,
     };
 
-    _ = video_frame;
     const content = try std.fs.cwd().readFileAlloc("california-1080-uyvy.yuv", allocator, .unlimited);
     defer allocator.free(content);
 
@@ -63,11 +67,9 @@ pub fn main() !void {
 
     var prng = std.Random.DefaultPrng.init(80085);
     const rng = prng.random();
-    for (audio_buffer) |*val| {
-        val.* = rng.float(f32) * 2 - 1.0;
-    }
+    fillAudioBuffer(rng, audio_buffer);
 
-    const audio_frame = omt.OMTMediaFrame{
+    var audio_frame = omt.OMTMediaFrame{
         .Type = omt.OMTFrameType_Audio,
         .Timestamp = -1,
         .Codec = omt.OMTCodec_FPA1,
@@ -75,7 +77,7 @@ pub fn main() !void {
         .Channels = 2,
         .SamplesPerChannel = audio_samples,
         .Data = @ptrCast(audio_buffer),
-        .DataLength = audio_buffer.len * 2,
+        .DataLength = @intCast(audio_buffer.len * 2),
         .FrameMetadata = null,
         .FrameMetadataLength = 0,
     };
@@ -83,12 +85,56 @@ pub fn main() !void {
     var tally = omt.OMTTally{ .preview = 0, .program = 0 };
     var stats = std.mem.zeroes(omt.OMTStatistics);
 
-    var frame_count = 0;
-    var bytes = 0;
+    var frame_count: i32 = 0;
+    var bytes: i32 = 0;
+
+    const two_lines = try allocator.alloc(u8, stride * 2);
+    @memset(two_lines, 255);
+    var line_position: usize = 0;
+
+    // send 10000 frames
+    while (frame_count < 10000) : (frame_count += 1) {
+        @memcpy(frame_buffer, content);
+        // TODO: copy the white line over here
+        line_position += stride * 2;
+        if (line_position >= video_frame.DataLength) {
+            line_position = 0;
+        }
+
+        bytes += omt.omt_send(sender, &video_frame);
+
+        if (@mod(frame_count, 60) == 0) {
+            std.log.info("sent: {}", .{bytes});
+
+            _ = omt.omt_send_gettally(sender, 0, &tally);
+            std.log.info("tally preview: {}, program: {}", .{ tally.preview, tally.program });
+
+            const frame = omt.omt_send_receive(sender, 0);
+            if (frame != null) {
+                const metadata = frame.*.Data;
+                if (metadata != null) {
+                    const metastr = @as([]u8, @ptrCast(metadata));
+                    std.log.info("meta: {s}", .{metastr});
+                }
+            }
+
+            const connections = omt.omt_send_connections(sender);
+            std.log.info("connections: {}", .{connections});
+
+            omt.omt_send_getvideostatistics(sender, &stats);
+            std.log.info("statistics sent bytes: {}, frames: {}", .{ stats.BytesSent, stats.Frames });
+        }
+
+        _ = omt.omt_send(sender, &audio_frame);
+        fillAudioBuffer(rng, audio_buffer);
+    }
 
     // Check we're on!
-    var found_address_count: i32 = 0;
-    _ = omt.omt_discovery_getaddresses(&found_address_count);
 
-    std.debug.print("Found {d} omt addresses\n", .{found_address_count});
+}
+
+fn fillAudioBuffer(rng: std.Random, buffer: []f32) void {
+    for (buffer) |*val| {
+        val.* = rng.float(f32) * 2 - 1.0;
+    }
 }