feat: isolate probe failures in reports

README.md

@@ -10,6 +10,7 @@
 
 - 输入一个或多个目录，递归发现常见视频文件
 - 提取视频时长、大小、编码、分辨率、帧率、音频编码等字段
+- 单个视频探测失败时不中断整次扫描，会单独记录错误清单
 - 汇总时长分布、大小分布、视频编码分布、分辨率分布
 - 生成适合人工查看的 HTML 报告，以及适合后续二次处理的 JSON / CSV
 
@@ -59,7 +60,11 @@ uv run video-metadata-analyzer D:\Videos `
 - `files.csv`
 - `report.html`
 
-其中 `report.html` 是离线静态页面，可以直接双击打开查看。
+其中：
+
+- `report.json` 包含 `summary`、成功文件列表 `files`，以及失败文件列表 `failures`
+- `files.csv` 同时输出成功和失败结果，带 `status`、`error_type`、`error_message` 字段
+- `report.html` 是离线静态页面，可以直接双击打开查看，并显示错误清单面板
 
 ## 开发与测试
 
@@ -80,8 +85,5 @@ uv run video-metadata-analyzer --help
 当前版本优先保证“扫描、提取、汇总、可视化”这条主链路可用，暂时没有做这些增强项：
 
 - 损坏视频的深度解码验证
-- 单文件失败后的错误报告面板
 - 更复杂的前端交互图表
 - 增量扫描与数据库缓存
-
-如果后续要继续做，最值得优先加的是“探测失败文件单独记录，不让整次扫描因为一个坏文件直接中断”。

src/video_metadata_analyzer/analysis.py

@@ -3,7 +3,7 @@ from __future__ import annotations
 from collections import Counter
 from dataclasses import dataclass
 
-from video_metadata_analyzer.models import VideoMetadata
+from video_metadata_analyzer.models import ProbeFailure, VideoMetadata
 
 
 MEGABYTE = 1024 * 1024
@@ -41,6 +41,8 @@ class CategoryCount:
 @dataclass(slots=True)
 class AnalysisSummary:
     total_files: int
+    successful_files: int
+    failed_files: int
     total_size_bytes: int
     total_duration_seconds: float
     duration_histogram: list[HistogramBin]
@@ -77,7 +79,12 @@ def _build_ranked_counts(labels: list[str]) -> list[CategoryCount]:
     return [CategoryCount(label=label, count=count) for label, count in ordered]
 
 
-def build_summary(records: list[VideoMetadata]) -> AnalysisSummary:
+def build_summary(
+    records: list[VideoMetadata],
+    *,
+    failures: list[ProbeFailure] | None = None,
+) -> AnalysisSummary:
+    failures = failures or []
     durations = [record.duration_seconds for record in records if record.duration_seconds is not None]
     sizes = [record.size_bytes for record in records]
     codecs = [record.video_codec for record in records if record.video_codec]
@@ -88,7 +95,9 @@ def build_summary(records: list[VideoMetadata]) -> AnalysisSummary:
     ]
 
     return AnalysisSummary(
-        total_files=len(records),
+        total_files=len(records) + len(failures),
+        successful_files=len(records),
+        failed_files=len(failures),
         total_size_bytes=sum(sizes),
         total_duration_seconds=sum(durations),
         duration_histogram=_bucketize_numeric(durations, DURATION_BUCKETS),

src/video_metadata_analyzer/cli.py

@@ -7,6 +7,7 @@ from typing import Sequence
 
 from video_metadata_analyzer.analysis import build_summary
 from video_metadata_analyzer.discovery import discover_video_files
+from video_metadata_analyzer.models import ProbeFailure, VideoMetadata
 from video_metadata_analyzer.probe import CommandRunner, probe_tool_versions, probe_video_metadata
 from video_metadata_analyzer.reporting import write_report_bundle
 
@@ -26,6 +27,15 @@ def build_parser() -> argparse.ArgumentParser:
     return parser
 
 
+def _format_probe_error(error: Exception) -> str:
+    for field_name in ("stderr", "stdout"):
+        value = getattr(error, field_name, None)
+        if isinstance(value, str) and value.strip():
+            return value.strip()
+    message = str(error).strip()
+    return message or error.__class__.__name__
+
+
 def main(
     argv: Sequence[str] | None = None,
     *,
@@ -47,24 +57,42 @@ def main(
         runner=command_runner,
     )
     video_files = discover_video_files(input_paths)
-    records = [
+    records: list[VideoMetadata] = []
+    failures: list[ProbeFailure] = []
+    for path in video_files:
+        try:
+            records.append(
                 probe_video_metadata(
                     path,
                     ffprobe_bin=args.ffprobe_bin,
                     runner=command_runner,
                 )
-        for path in video_files
+            )
-    ]
+        except Exception as error:
-    summary = build_summary(records)
+            failures.append(
+                ProbeFailure(
+                    path=path,
+                    error_type=error.__class__.__name__,
+                    error_message=_format_probe_error(error),
+                )
+            )
+
+    summary = build_summary(records, failures=failures)
     paths = write_report_bundle(
         output_dir=output_dir,
         scanned_inputs=input_paths,
         records=records,
+        failures=failures,
         summary=summary,
         tool_versions=tool_versions,
     )
 
-    print(f"扫描完成：共发现 {summary.total_files} 个视频文件。")
+    print(
+        "扫描完成："
+        f"共发现 {summary.total_files} 个视频文件，"
+        f"成功 {summary.successful_files} 个，"
+        f"失败 {summary.failed_files} 个。"
+    )
     print(f"JSON 报告：{paths['json']}")
     print(f"CSV 明细：{paths['csv']}")
     print(f"HTML 报告：{paths['html']}")

src/video_metadata_analyzer/models.py

@@ -19,3 +19,10 @@ class VideoMetadata:
     video_stream_count: int
     audio_stream_count: int
     subtitle_stream_count: int
+
+
+@dataclass(slots=True)
+class ProbeFailure:
+    path: Path
+    error_type: str
+    error_message: str

src/video_metadata_analyzer/reporting.py

@@ -9,7 +9,7 @@ from pathlib import Path
 from typing import Iterable
 
 from video_metadata_analyzer.analysis import AnalysisSummary, CategoryCount, HistogramBin
-from video_metadata_analyzer.models import VideoMetadata
+from video_metadata_analyzer.models import ProbeFailure, VideoMetadata
 
 
 def _record_to_dict(record: VideoMetadata) -> dict[str, object]:
@@ -30,9 +30,19 @@ def _record_to_dict(record: VideoMetadata) -> dict[str, object]:
     }
 
 
+def _failure_to_dict(failure: ProbeFailure) -> dict[str, str]:
+    return {
+        "path": failure.path.as_posix(),
+        "error_type": failure.error_type,
+        "error_message": failure.error_message,
+    }
+
+
 def _summary_to_dict(summary: AnalysisSummary) -> dict[str, object]:
     return {
         "total_files": summary.total_files,
+        "successful_files": summary.successful_files,
+        "failed_files": summary.failed_files,
         "total_size_bytes": summary.total_size_bytes,
         "total_duration_seconds": summary.total_duration_seconds,
         "duration_histogram": [asdict(item) for item in summary.duration_histogram],
@@ -47,6 +57,7 @@ def _write_json(
     *,
     scanned_inputs: list[Path],
     records: list[VideoMetadata],
+    failures: list[ProbeFailure],
     summary: AnalysisSummary,
     tool_versions: dict[str, str],
 ) -> None:
@@ -56,6 +67,7 @@ def _write_json(
         "tool_versions": tool_versions,
         "summary": _summary_to_dict(summary),
         "files": [_record_to_dict(record) for record in records],
+        "failures": [_failure_to_dict(failure) for failure in failures],
     }
     output_path.write_text(
         json.dumps(payload, ensure_ascii=False, indent=2),
@@ -63,8 +75,39 @@ def _write_json(
     )
 
 
-def _write_csv(output_path: Path, records: list[VideoMetadata]) -> None:
+def _build_success_csv_row(record: VideoMetadata) -> dict[str, object]:
+    return {
+        "status": "ok",
+        **_record_to_dict(record),
+        "error_type": "",
+        "error_message": "",
+    }
+
+
+def _build_failure_csv_row(failure: ProbeFailure) -> dict[str, object]:
+    return {
+        "status": "error",
+        "path": failure.path.as_posix(),
+        "size_bytes": "",
+        "duration_seconds": "",
+        "format_name": "",
+        "bit_rate": "",
+        "video_codec": "",
+        "audio_codec": "",
+        "width": "",
+        "height": "",
+        "frame_rate": "",
+        "video_stream_count": "",
+        "audio_stream_count": "",
+        "subtitle_stream_count": "",
+        "error_type": failure.error_type,
+        "error_message": failure.error_message,
+    }
+
+
+def _write_csv(output_path: Path, records: list[VideoMetadata], failures: list[ProbeFailure]) -> None:
     fieldnames = [
+        "status",
         "path",
         "size_bytes",
         "duration_seconds",
@@ -78,13 +121,17 @@ def _write_csv(output_path: Path, records: list[VideoMetadata]) -> None:
         "video_stream_count",
         "audio_stream_count",
         "subtitle_stream_count",
+        "error_type",
+        "error_message",
     ]
 
     with output_path.open("w", encoding="utf-8-sig", newline="") as handle:
         writer = csv.DictWriter(handle, fieldnames=fieldnames)
         writer.writeheader()
         for record in records:
-            writer.writerow(_record_to_dict(record))
+            writer.writerow(_build_success_csv_row(record))
+        for failure in failures:
+            writer.writerow(_build_failure_csv_row(failure))
 
 
 def _format_size(value: int) -> str:
@@ -144,19 +191,49 @@ def _render_bar_chart(title: str, items: Iterable[HistogramBin | CategoryCount])
     return "".join(pieces)
 
 
+def _render_failures(failures: list[ProbeFailure]) -> str:
+    if not failures:
+        return (
+            '<section class="meta">'
+            "<h2>错误清单</h2>"
+            "<p>本次扫描没有探测失败的文件。</p>"
+            "</section>"
+        )
+
+    items = []
+    for failure in failures:
+        items.append(
+            "<li class=\"error-item\">"
+            f"<span class=\"error-path\">{escape(failure.path.as_posix())}</span>"
+            f"<span class=\"error-detail\">{escape(failure.error_type)}: {escape(failure.error_message)}</span>"
+            "</li>"
+        )
+
+    return (
+        '<section class="meta">'
+        "<h2>错误清单</h2>"
+        '<ul class="error-list">'
+        f"{''.join(items)}"
+        "</ul>"
+        "</section>"
+    )
+
+
 def _write_html(
     output_path: Path,
     *,
     scanned_inputs: list[Path],
     summary: AnalysisSummary,
     tool_versions: dict[str, str],
+    failures: list[ProbeFailure],
 ) -> None:
     summary_cards = f"""
     <section class="cards">
       <article class="card"><h2>视频文件数</h2><p>{summary.total_files}</p></article>
+      <article class="card"><h2>成功探测</h2><p>{summary.successful_files}</p></article>
+      <article class="card"><h2>探测失败</h2><p>{summary.failed_files}</p></article>
       <article class="card"><h2>总大小</h2><p>{escape(_format_size(summary.total_size_bytes))}</p></article>
       <article class="card"><h2>总时长</h2><p>{escape(_format_duration(summary.total_duration_seconds))}</p></article>
-      <article class="card"><h2>扫描目录数</h2><p>{len(scanned_inputs)}</p></article>
     </section>
     """
 
@@ -226,6 +303,31 @@ def _write_html(
       font-weight: 700;
     }}
     ul {{ padding-left: 18px; }}
+    .error-list {{
+      list-style: none;
+      padding: 0;
+      margin: 0;
+      display: grid;
+      gap: 12px;
+    }}
+    .error-item {{
+      border: 1px solid rgba(217, 205, 183, 0.85);
+      border-radius: 14px;
+      padding: 14px 16px;
+      background: rgba(255, 255, 255, 0.55);
+    }}
+    .error-path {{
+      display: block;
+      color: var(--text);
+      font-weight: 700;
+      overflow-wrap: anywhere;
+    }}
+    .error-detail {{
+      display: block;
+      margin-top: 6px;
+      color: var(--muted);
+      overflow-wrap: anywhere;
+    }}
   </style>
 </head>
 <body>
@@ -233,6 +335,7 @@ def _write_html(
     <header>
       <h1>视频元数据分析报告</h1>
       <p>扫描输入：{escape(", ".join(path.as_posix() for path in scanned_inputs))}</p>
+      <p>扫描目录数：{len(scanned_inputs)}</p>
     </header>
     {summary_cards}
     <section class="charts">
@@ -241,6 +344,7 @@ def _write_html(
       {_render_bar_chart("视频编码分布", summary.video_codecs)}
       {_render_bar_chart("分辨率分布", summary.resolutions)}
     </section>
+    {_render_failures(failures)}
     <section class="meta">
       <h2>工具版本</h2>
       <ul>
@@ -260,6 +364,7 @@ def write_report_bundle(
     output_dir: Path,
     scanned_inputs: list[Path],
     records: list[VideoMetadata],
+    failures: list[ProbeFailure],
     summary: AnalysisSummary,
     tool_versions: dict[str, str],
 ) -> dict[str, Path]:
@@ -272,15 +377,17 @@ def write_report_bundle(
         json_path,
         scanned_inputs=scanned_inputs,
         records=records,
+        failures=failures,
         summary=summary,
         tool_versions=tool_versions,
     )
-    _write_csv(csv_path, records)
+    _write_csv(csv_path, records, failures)
     _write_html(
         html_path,
         scanned_inputs=scanned_inputs,
         summary=summary,
         tool_versions=tool_versions,
+        failures=failures,
     )
 
     return {"json": json_path, "csv": csv_path, "html": html_path}

tests/test_analysis.py

@@ -1,7 +1,7 @@
 from pathlib import Path
 
 from video_metadata_analyzer.analysis import build_summary
-from video_metadata_analyzer.models import VideoMetadata
+from video_metadata_analyzer.models import ProbeFailure, VideoMetadata
 
 
 def test_build_summary_computes_totals_and_histograms() -> None:
@@ -81,3 +81,38 @@ def test_build_summary_computes_totals_and_histograms() -> None:
         ("1280x720", 1),
         ("3840x2160", 1),
     ]
+
+
+def test_build_summary_tracks_successful_and_failed_files() -> None:
+    records = [
+        VideoMetadata(
+            path=Path("a.mp4"),
+            size_bytes=1024,
+            duration_seconds=10,
+            format_name="mov,mp4,m4a,3gp,3g2,mj2",
+            bit_rate=1_000_000,
+            video_codec="h264",
+            audio_codec="aac",
+            width=1920,
+            height=1080,
+            frame_rate=30.0,
+            video_stream_count=1,
+            audio_stream_count=1,
+            subtitle_stream_count=0,
+        )
+    ]
+    failures = [
+        ProbeFailure(
+            path=Path("broken.mp4"),
+            error_type="CalledProcessError",
+            error_message="moov atom not found",
+        )
+    ]
+
+    summary = build_summary(records, failures=failures)
+
+    assert summary.total_files == 2
+    assert summary.successful_files == 1
+    assert summary.failed_files == 1
+    assert summary.total_size_bytes == 1024
+    assert summary.total_duration_seconds == 10

tests/test_cli.py

@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 import json
+import subprocess
 from pathlib import Path
 
 from video_metadata_analyzer.cli import main
@@ -50,3 +51,66 @@ def test_main_scans_input_directory_and_writes_reports(tmp_path: Path) -> None:
     assert (output_dir / "report.json").exists()
     assert (output_dir / "files.csv").exists()
     assert (output_dir / "report.html").exists()
+
+
+def test_main_continues_when_single_file_probe_fails(tmp_path: Path) -> None:
+    input_dir = tmp_path / "videos"
+    input_dir.mkdir()
+    good_sample = input_dir / "good.mp4"
+    bad_sample = input_dir / "bad.mp4"
+    good_sample.write_bytes(b"x" * 2048)
+    bad_sample.write_bytes(b"y" * 1024)
+    output_dir = tmp_path / "output"
+
+    def fake_runner(command: list[str]) -> str:
+        if command[:2] == ["ffprobe", "-version"]:
+            return "ffprobe version 8.0.1\nbuilt with ...\n"
+        if command[:2] == ["ffmpeg", "-version"]:
+            return "ffmpeg version 8.0.1\nbuilt with ...\n"
+        if command[0] == "ffprobe" and command[-1] == str(good_sample):
+            return json.dumps(
+                {
+                    "format": {
+                        "filename": str(good_sample),
+                        "format_name": "mov,mp4,m4a,3gp,3g2,mj2",
+                        "duration": "8.000000",
+                        "bit_rate": "1024000",
+                        "size": "2048",
+                    },
+                    "streams": [
+                        {
+                            "codec_type": "video",
+                            "codec_name": "h264",
+                            "width": 1280,
+                            "height": 720,
+                            "avg_frame_rate": "25/1",
+                        }
+                    ],
+                }
+            )
+        if command[0] == "ffprobe" and command[-1] == str(bad_sample):
+            raise subprocess.CalledProcessError(
+                returncode=1,
+                cmd=command,
+                stderr="moov atom not found",
+            )
+        raise AssertionError(f"unexpected command: {command}")
+
+    exit_code = main(
+        [str(input_dir), "--output-dir", str(output_dir)],
+        command_runner=fake_runner,
+    )
+
+    assert exit_code == 0
+    payload = json.loads((output_dir / "report.json").read_text(encoding="utf-8"))
+    assert payload["summary"]["total_files"] == 2
+    assert payload["summary"]["successful_files"] == 1
+    assert payload["summary"]["failed_files"] == 1
+    assert payload["files"][0]["path"] == good_sample.as_posix()
+    assert payload["failures"] == [
+        {
+            "path": bad_sample.as_posix(),
+            "error_type": "CalledProcessError",
+            "error_message": "moov atom not found",
+        }
+    ]

tests/test_report.py

@@ -4,7 +4,7 @@ import json
 from pathlib import Path
 
 from video_metadata_analyzer.analysis import build_summary
-from video_metadata_analyzer.models import VideoMetadata
+from video_metadata_analyzer.models import ProbeFailure, VideoMetadata
 from video_metadata_analyzer.reporting import write_report_bundle
 
 
@@ -25,12 +25,18 @@ def test_write_report_bundle_creates_json_csv_and_html(tmp_path: Path) -> None:
         audio_stream_count=1,
         subtitle_stream_count=0,
     )
-    summary = build_summary([record])
+    failure = ProbeFailure(
+        path=Path("videos/broken.mp4"),
+        error_type="CalledProcessError",
+        error_message="moov atom not found",
+    )
+    summary = build_summary([record], failures=[failure])
 
     paths = write_report_bundle(
         output_dir=output_dir,
         scanned_inputs=[Path("videos")],
         records=[record],
+        failures=[failure],
         summary=summary,
         tool_versions={"ffprobe": "ffprobe version x", "ffmpeg": "ffmpeg version y"},
     )
@@ -41,15 +47,23 @@ def test_write_report_bundle_creates_json_csv_and_html(tmp_path: Path) -> None:
     assert paths["html"].exists()
 
     payload = json.loads(paths["json"].read_text(encoding="utf-8"))
-    assert payload["summary"]["total_files"] == 1
+    assert payload["summary"]["total_files"] == 2
+    assert payload["summary"]["successful_files"] == 1
+    assert payload["summary"]["failed_files"] == 1
     assert payload["tool_versions"]["ffmpeg"] == "ffmpeg version y"
     assert payload["files"][0]["path"] == "videos/sample.mp4"
+    assert payload["failures"][0]["path"] == "videos/broken.mp4"
+    assert payload["failures"][0]["error_message"] == "moov atom not found"
 
     csv_text = paths["csv"].read_text(encoding="utf-8")
-    assert "path,size_bytes,duration_seconds" in csv_text
+    assert "status,path,size_bytes,duration_seconds" in csv_text
     assert "videos/sample.mp4" in csv_text
+    assert "videos/broken.mp4" in csv_text
+    assert "CalledProcessError" in csv_text
 
     html_text = paths["html"].read_text(encoding="utf-8")
     assert "视频元数据分析报告" in html_text
     assert "时长分布" in html_text
+    assert "错误清单" in html_text
+    assert "moov atom not found" in html_text
     assert "<svg" in html_text