// META: global=window,dedicatedworker
// META: script=/webcodecs/utils.js

test(t => {
  let image = makeImageBitmap(32, 16);
  let frame = new VideoFrame(image, {timestamp: 10});

  assert_equals(frame.timestamp, 10, "timestamp");
  assert_equals(frame.duration, null, "duration");
  assert_equals(frame.cropWidth, 32, "cropWidth");
  assert_equals(frame.cropHeight, 16, "cropHeight");
  assert_equals(frame.cropWidth, 32, "displayWidth");
  assert_equals(frame.cropHeight, 16, "displayHeight");

  frame.close();
}, 'Test we can construct a VideoFrame.');

test(t => {
  let image = makeImageBitmap(1, 1);
  let frame = new VideoFrame(image, {timestamp: 10});

  assert_equals(frame.cropWidth, 1, "cropWidth");
  assert_equals(frame.cropHeight, 1, "cropHeight");
  assert_equals(frame.cropWidth, 1, "displayWidth");
  assert_equals(frame.cropHeight, 1, "displayHeight");

  frame.close();
}, 'Test we can construct an odd-sized VideoFrame.');

test(t => {
  let image = makeImageBitmap(32, 16);
  let frame = new VideoFrame(image, {timestamp: 0});

  // TODO(sandersd): This would be more clear as RGBA, but conversion has
  // not be specified (or implemented) yet.
  if (frame.format !== "I420") {
    return;
  }
  assert_equals(frame.planes.length, 3, "number of planes");

  // Validate Y plane metadata.
  let yPlane = frame.planes[0];
  let yStride = yPlane.stride;
  let yRows = yPlane.rows;
  let yLength = yPlane.length;

  // Required minimums to contain the visible data.
  assert_greater_than_equal(yRows, 16, "Y plane rows");
  assert_greater_than_equal(yStride, 32, "Y plane stride");
  assert_greater_than_equal(yLength, 32 * 16, "Y plane length");

  // Not required by spec, but sets limit at 50% padding per dimension.
  assert_less_than_equal(yRows, 32, "Y plane rows");
  assert_less_than_equal(yStride, 64, "Y plane stride");
  assert_less_than_equal(yLength, 32 * 64, "Y plane length");

  // Validate Y plane data.
  let buffer = new ArrayBuffer(yLength);
  let view = new Uint8Array(buffer);
  frame.planes[0].readInto(view);

  // TODO(sandersd): This probably needs to be fuzzy unless we can make
  // guarantees about the color space.
  assert_equals(view[0], 94, "Y value at (0, 0)");

  frame.close();
}, 'Test we can read planar data from a VideoFrame.');

test(t => {
  let image = makeImageBitmap(32, 16);
  let frame = new VideoFrame(image, {timestamp: 0});

  // TODO(sandersd): This would be more clear as RGBA, but conversion has
  // not be specified (or implemented) yet.
  if (frame.format !== "I420") {
    return;
  }

  assert_equals(frame.planes.length, 3, "number of planes");

  // Attempt to read Y plane data, but close the frame first.
  let yPlane = frame.planes[0];
  let yLength = yPlane.length;
  frame.close();

  let buffer = new ArrayBuffer(yLength);
  let view = new Uint8Array(buffer);
  assert_throws_dom("InvalidStateError", () => yPlane.readInto(view));
}, 'Test we cannot read planar data from a closed VideoFrame.');

test(t => {
  let image = makeImageBitmap(32, 16);

  image.close();

  assert_throws_dom("InvalidStateError", () => {
    let frame = new VideoFrame(image, {timestamp: 10});
  })
}, 'Test constructing VideoFrames from closed ImageBitmap throws.');

test(t => {
  let vfInit = {timestamp: 1234, codedWidth: 4, codedHeight: 2};
  assert_throws_js(TypeError, () => {
    let frame = new VideoFrame('ABCD', [], vfInit);
  }, 'invalid pixel format');

  assert_throws_dom('ConstraintError', () => {
    let frame = new VideoFrame('ARGB', [], {timestamp: 1234});
  }, 'missing coded size');

  function constructFrame(init) {
    let yPlaneData = new Uint8Array([1, 2, 3, 4, 5, 6, 7, 8]);  // 4x2
    let uPlaneData = new Uint8Array([1, 2]);                    // 2x1
    let yPlane = {src: yPlaneData, stride: 4, rows: 2};
    let uPlane = vPlane = {src: uPlaneData, stride: 2, rows: 1};
    let frame = new VideoFrame('I420', [yPlane, uPlane, vPlane], init);
  }

  assert_throws_dom(
      'ConstraintError', () => {constructFrame({
                           timestamp: 1234,
                           codedWidth: 1 << 32 - 1,
                           codedHeight: 1 << 32 - 1
                         })},
      'invalid coded size');
  assert_throws_dom(
      'ConstraintError',
      () => {constructFrame({timestamp: 1234, codedWidth: 4, codedHeight: 0})},
      'invalid coded height');
  assert_throws_dom(
      'ConstraintError',
      () => {constructFrame({timestamp: 1234, codedWidth: 0, codedHeight: 4})},
      'invalid coded width');
  assert_throws_dom(
      'ConstraintError', () => {constructFrame({
                           timestamp: 1234,
                           codedWidth: 4,
                           codedHeight: 2,
                           cropLeft: 100,
                           cropRight: 100
                         })},
      'invalid crop left/right');
  assert_throws_dom(
      'ConstraintError',
      () => {constructFrame(
          {timestamp: 1234, codedWidth: 4, codedHeight: 2, cropWidth: 0})},
      'invalid crop width');
  assert_throws_dom(
      'ConstraintError',
      () => {constructFrame(
          {timestamp: 1234, codedWidth: 4, codedHeight: 2, cropHeight: 0})},
      'invalid crop height');
  assert_throws_dom(
      'ConstraintError', () => {constructFrame({
                           timestamp: 1234,
                           codedWidth: 4,
                           codedHeight: 2,
                           cropHeight: -1,
                           cropWidth: -100
                         })},
      'invalid negative crop');
  assert_throws_dom(
      'ConstraintError', () => {constructFrame({
                           timestamp: 1234,
                           codedWidth: 4,
                           codedHeight: 2,
                           displayWidth: 1 << 32 - 1
                         })},
      'invalid display width');
  assert_throws_dom(
      'ConstraintError', () => {constructFrame({
                           timestamp: 1234,
                           codedWidth: 4,
                           codedHeight: 2,
                           displayWidth: 1 << 32 - 1,
                           displayHeight: 1 << 32
                         })},
      'invalid display height');
}, 'Test invalid planar constructed VideoFrames');

test(t => {
  let fmt = 'I420';
  let vfInit = {timestamp: 1234, codedWidth: 4, codedHeight: 2};
  let yPlaneData = new Uint8Array([1, 2, 3, 4, 5, 6, 7, 8]);  // 4x2
  let uPlaneData = new Uint8Array([1, 2]);                    // 2x1
  let yPlane = {src: yPlaneData, stride: 4, rows: 2};
  let uPlane = vPlane = {src: uPlaneData, stride: 2, rows: 1};
  let frame = new VideoFrame(fmt, [yPlane, uPlane, vPlane], vfInit);
  assert_equals(frame.planes.length, 3, 'plane count');
  assert_equals(frame.format, fmt, 'plane format');
  verifyPlane(yPlane, frame.planes[0]);
  verifyPlane(uPlane, frame.planes[1]);
  verifyPlane(vPlane, frame.planes[2]);
  frame.close();

  assert_throws_dom('ConstraintError', () => {
    let frame = new VideoFrame(fmt, [yPlane, uPlane], vfInit);
  }, 'too few planes');
  assert_throws_dom('ConstraintError', () => {
    let badYPlane = {...yPlane};
    badYPlane.stride = 1;
    let frame = new VideoFrame(fmt, [badYPlane, uPlane, vPlane], vfInit);
  }, 'y stride too small');
  assert_throws_dom('ConstraintError', () => {
    let badUPlane = {...uPlane};
    badUPlane.stride = 1;
    let frame = new VideoFrame(fmt, [yPlane, badUPlane, vPlane], vfInit);
  }, 'u stride too small');
  assert_throws_dom('ConstraintError', () => {
    let badVPlane = {...vPlane};
    badVPlane.stride = 1;
    let frame = new VideoFrame(fmt, [yPlane, uPlane, badVPlane], vfInit);
  }, 'v stride too small');
  assert_throws_dom('ConstraintError', () => {
    let badYPlane = {...yPlane};
    badYPlane.rows = 1;
    let frame = new VideoFrame(fmt, [badYPlane, uPlane, vPlane], vfInit);
  }, 'y height too small');
  assert_throws_dom('ConstraintError', () => {
    let badUPlane = {...uPlane};
    badUPlane.rows = 0;
    let frame = new VideoFrame(fmt, [yPlane, badUPlane, vPlane], vfInit);
  }, 'u height too small');
  assert_throws_dom('ConstraintError', () => {
    let badVPlane = {...vPlane};
    badVPlane.rows = 0;
    let frame = new VideoFrame(fmt, [yPlane, uPlane, badVPlane], vfInit);
  }, 'v height too small');
  assert_throws_dom('ConstraintError', () => {
    let badYPlane = {...yPlane};
    badYPlane.rows = 100;
    let frame = new VideoFrame(fmt, [badYPlane, uPlane, vPlane], vfInit);
  }, 'y height too large');
  assert_throws_dom('ConstraintError', () => {
    let badUPlane = {...uPlane};
    badUPlane.rows = 100;
    let frame = new VideoFrame(fmt, [yPlane, badUPlane, vPlane], vfInit);
  }, 'u height too large');
  assert_throws_dom('ConstraintError', () => {
    let badVPlane = {...vPlane};
    badVPlane.rows = 100;
    let frame = new VideoFrame(fmt, [yPlane, uPlane, badVPlane], vfInit);
  }, 'v height too large');
  assert_throws_dom('ConstraintError', () => {
    let badYPlane = {...yPlane};
    badYPlane.src = yPlaneData.slice(1, 4);
    let frame = new VideoFrame(fmt, [badYPlane, uPlane, vPlane], vfInit);
  }, 'y plane size too small');
  assert_throws_dom('ConstraintError', () => {
    let badUPlane = {...uPlane};
    badUPlane.src = uPlaneData.slice(1, 1);
    let frame = new VideoFrame(fmt, [yPlane, badUPlane, vPlane], vfInit);
  }, 'u plane size too small');
  assert_throws_dom('ConstraintError', () => {
    let badVPlane = {...vPlane};
    badVPlane.src = uPlaneData.slice(1, 1);
    let frame = new VideoFrame(fmt, [yPlane, uPlane, badVPlane], vfInit);
  }, 'v plane size too small');
}, 'Test planar constructed I420 VideoFrame');

test(t => {
  let fmt = 'I420';
  let vfInit = {timestamp: 1234, codedWidth: 4, codedHeight: 2};
  let yPlaneData = new Uint8Array([1, 2, 3, 4, 5, 6, 7, 8]);  // 4x2
  let uPlaneData = new Uint8Array([1, 2]);                    // 2x1
  let yPlane = {src: yPlaneData, stride: 4, rows: 2};
  let uPlane = vPlane = {src: uPlaneData, stride: 2, rows: 1};
  let aPlaneData = yPlaneData.reverse();
  let aPlane = {src: aPlaneData, stride: 4, rows: 2};
  let frame = new VideoFrame(fmt, [yPlane, uPlane, vPlane, aPlane], vfInit);
  assert_equals(frame.planes.length, 4, 'plane count');
  assert_equals(frame.format, fmt, 'plane format');
  verifyPlane(yPlane, frame.planes[0]);
  verifyPlane(uPlane, frame.planes[1]);
  verifyPlane(vPlane, frame.planes[2]);
  verifyPlane(aPlane, frame.planes[3]);
  frame.close();

  // Most constraints are tested as part of I420 above.

  assert_throws_dom('ConstraintError', () => {
    let badAPlane = {...aPlane};
    badAPlane.stride = 1;
    let frame =
        new VideoFrame(fmt, [yPlane, uPlane, vPlane, badAPlane], vfInit);
  }, 'a stride too small');
  assert_throws_dom('ConstraintError', () => {
    let badAPlane = {...aPlane};
    badAPlane.rows = 1;
    let frame =
        new VideoFrame(fmt, [yPlane, uPlane, vPlane, badAPlane], vfInit);
  }, 'a height too small');
  assert_throws_dom('ConstraintError', () => {
    let badAPlane = {...aPlane};
    badAPlane.rows = 100;
    let frame =
        new VideoFrame(fmt, [yPlane, uPlane, vPlane, badAPlane], vfInit);
  }, 'a height too large');
  assert_throws_dom('ConstraintError', () => {
    let badAPlane = {...yPlane};
    badAPlane.src = aPlaneData.slice(1, 4);
    let frame =
        new VideoFrame(fmt, [yPlane, uPlane, vPlane, badAPlane], vfInit);
  }, 'a plane size too small');
}, 'Test planar constructed I420+Alpha VideoFrame');

test(t => {
  let fmt = 'NV12';
  let vfInit = {timestamp: 1234, codedWidth: 4, codedHeight: 2};
  let yPlaneData = new Uint8Array([1, 2, 3, 4, 5, 6, 7, 8]);  // 4x2
  let yPlane = {src: yPlaneData, stride: 4, rows: 2};
  let uvPlaneData = new Uint8Array([1, 2, 3, 4]);
  let uvPlane = {src: uvPlaneData, stride: 4, rows: 1};
  frame = new VideoFrame(fmt, [yPlane, uvPlane], vfInit);
  assert_equals(frame.planes.length, 2, 'plane count');
  assert_equals(frame.format, fmt, 'plane format');
  verifyPlane(yPlane, frame.planes[0]);
  verifyPlane(uvPlane, frame.planes[1]);
  frame.close();

  assert_throws_dom('ConstraintError', () => {
    let frame = new VideoFrame(fmt, [yPlane], vfInit);
  }, 'too few planes');
  assert_throws_dom('ConstraintError', () => {
    let badYPlane = {...yPlane};
    badYPlane.stride = 1;
    let frame = new VideoFrame(fmt, [badYPlane, uvPlane], vfInit);
  }, 'y stride too small');
  assert_throws_dom('ConstraintError', () => {
    let badUVPlane = {...uvPlane};
    badUVPlane.stride = 2;
    let frame = new VideoFrame(fmt, [yPlane, badUVPlane], vfInit);
  }, 'uv stride too small');
  assert_throws_dom('ConstraintError', () => {
    let badYPlane = {...yPlane};
    badYPlane.rows = 1;
    let frame = new VideoFrame(fmt, [badYPlane, uvPlane], vfInit);
  }, 'y height too small');
  assert_throws_dom('ConstraintError', () => {
    let badUVPlane = {...uvPlane};
    badUVPlane.rows = 0;
    let frame = new VideoFrame(fmt, [yPlane, badUVPlane], vfInit);
  }, 'uv height too small');
  assert_throws_dom('ConstraintError', () => {
    let badYPlane = {...yPlane};
    badYPlane.rows = 100;
    let frame = new VideoFrame(fmt, [badYPlane, uvPlane], vfInit);
  }, 'y height too large');
  assert_throws_dom('ConstraintError', () => {
    let badUVPlane = {...uvPlane};
    badUVPlane.rows = 100;
    let frame = new VideoFrame(fmt, [yPlane, badUVPlane], vfInit);
  }, 'u height too large');
  assert_throws_dom('ConstraintError', () => {
    let badYPlane = {...yPlane};
    badYPlane.src = yPlaneData.slice(1, 4);
    let frame = new VideoFrame(fmt, [badYPlane, uvPlane], vfInit);
  }, 'y plane size too small');
  assert_throws_dom('ConstraintError', () => {
    let badUVPlane = {...uvPlane};
    badUVPlane.src = uvPlaneData.slice(1, 1);
    let frame = new VideoFrame(fmt, [yPlane, badUVPlane], vfInit);
  }, 'u plane size too small');
}, 'Test planar constructed NV12 VideoFrame');

test(t => {
  let vfInit = {timestamp: 1234, codedWidth: 4, codedHeight: 2};
  let argbPlaneData =
      new Uint8Array(new Uint32Array([1, 2, 3, 4, 5, 6, 7, 8]).buffer);
  let argbPlane = {src: argbPlaneData, stride: 4 * 4, rows: 2};
  frame = new VideoFrame('ABGR', [argbPlane], vfInit);
  assert_equals(frame.planes.length, 1, 'plane count');
  assert_equals(frame.format, 'ABGR', 'plane format');
  verifyPlane(argbPlane, frame.planes[0]);
  frame.close();

  frame = new VideoFrame('ARGB', [argbPlane], vfInit);
  assert_equals(frame.planes.length, 1, 'plane count');
  assert_equals(frame.format, 'ARGB', 'plane format');
  verifyPlane(argbPlane, frame.planes[0]);
  frame.close();

  frame = new VideoFrame('XBGR', [argbPlane], vfInit);
  assert_equals(frame.planes.length, 1, 'plane count');
  assert_equals(frame.format, 'XBGR', 'plane format');
  verifyPlane(argbPlane, frame.planes[0]);
  frame.close();

  frame = new VideoFrame('XRGB', [argbPlane], vfInit);
  assert_equals(frame.planes.length, 1, 'plane count');
  assert_equals(frame.format, 'XRGB', 'plane format');
  verifyPlane(argbPlane, frame.planes[0]);
  frame.close();

  ['ABGR', 'ARGB', 'XBGR', 'XRGB'].forEach(fmt => {
    assert_throws_dom('ConstraintError', () => {
      let frame = new VideoFrame(fmt, [], vfInit);
    }, fmt + ': too few planes');
    assert_throws_dom('ConstraintError', () => {
      let badARGBPlane = {...argbPlane};
      badARGBPlane.stride = 1;
      let frame = new VideoFrame(fmt, [badARGBPlane], vfInit);
    }, fmt + ': stride too small');
    assert_throws_dom('ConstraintError', () => {
      let badARGBPlane = {...argbPlane};
      badARGBPlane.rows = 1;
      let frame = new VideoFrame(fmt, [badARGBPlane], vfInit);
    }, fmt + ': height too small');
    assert_throws_dom('ConstraintError', () => {
      let badARGBPlane = {...argbPlane};
      badARGBPlane.rows = 100;
      let frame = new VideoFrame(fmt, [badARGBPlane], vfInit);
    }, fmt + ': height too large');
    assert_throws_dom('ConstraintError', () => {
      let badARGBPlane = {...argbPlane};
      badARGBPlane.src = argbPlaneData.slice(1, 4);
      let frame = new VideoFrame(fmt, [badARGBPlane], vfInit);
    }, fmt + ': plane size too small');
  });
}, 'Test planar constructed RGB VideoFrames');