VIDEO-005: add full offline QPSK IQ video receiver

tests/test_video005_video.py

@@ -0,0 +1,45 @@
+"""Небольшой H.264-контроль IQ → CRC → внешний FEC → показ кадров."""
+
+from __future__ import annotations
+
+import numpy as np
+import pytest
+
+from tools.video005_video import VideoFixture, build_fixture, run_case
+
+
+@pytest.fixture(scope="module")
+def synthetic_video() -> VideoFixture:
+    rows, columns = np.mgrid[0:360, 0:640]
+    frames = [np.stack(((columns + index * 17) % 256,
+                        (rows + index * 11) % 256,
+                        (columns // 2 + rows // 3 + index * 29) % 256), axis=-1
+                       ).astype(np.uint8)
+              for index in range(3)]
+    return build_fixture(3, pixels_override=frames)
+
+
+def test_clean_h264_from_raw_iq_displays_three_unique_frames(
+    synthetic_video: VideoFixture,
+) -> None:
+    result = run_case(synthetic_video, "clean", decoder_backend="legacy")
+    video = result["video"]
+    assert result["exact_crc_packets"]
+    assert result["crc_valid_radio_packets"] == len(synthetic_video.transmissions)
+    assert video["displayed_frame_ids"] == [0, 1, 2]
+    assert video["displayed_fps"] == 10
+    assert video["max_frame_age_ms"] < 300
+    assert video["wrong_encoded_frames"] == video["wrong_decoded_frames"] == 0
+    assert not video["old_frame_replay"]
+
+
+def test_corrupted_iq_packet_is_erased_before_h264(
+    synthetic_video: VideoFixture,
+) -> None:
+    result = run_case(synthetic_video, "corrupt_packet", decoder_backend="legacy")
+    video = result["video"]
+    assert result["exact_crc_packets"]
+    assert result["crc_valid_radio_packets"] == len(synthetic_video.transmissions) - 1
+    assert video["recovered_fragments"] == 1
+    assert video["displayed_frame_ids"] == [0, 1, 2]
+    assert video["wrong_encoded_frames"] == video["wrong_decoded_frames"] == 0