MirrorFrameBinding Class Reference

Public Member Functions
std::optional< std::string >	convert (RgbaBytes rgba, int width, int height, bool contain)
int	transform (RgbaBytes rgba, int width, int height)
void	submitAudio (VisualizationSamples samples, int source)
std::optional< std::string >	renderAudio (unsigned width, unsigned height, int source)

Detailed Description

Definition at line 18 of file frame.cpp.

Member Function Documentation

convert()

std::optional< std::string > MirrorFrameBinding::convert ( RgbaBytes rgba, int width, int height, bool contain )

inline

Definition at line 20 of file frame.cpp.

                                                                                      {
    const size_t length = rgba["byteLength"].as<size_t>();
    if (width <= 0 || height <= 0 || static_cast<uint64_t>(width) * static_cast<uint64_t>(height) * 4 != length) {
      SET_ERRNO(ERROR_INVALID_PARAM, "Invalid mirror image: %dx%d, %zu bytes", width, height, length);
      return std::nullopt;
    }
    input_.resize(length);
    emscripten::val view = emscripten::val(emscripten::typed_memory_view(length, input_.data()));
    view.call<void>("set", rgba);
    char *frame = mirror_convert_frame(input_.data(), width, height, contain);
    if (!frame) {
      SET_ERRNO(ERROR_DISPLAY, "Mirror frame conversion failed");
      return std::nullopt;
    }
    std::string result(frame);
    mirror_free_string(frame);
    return result;
  }

References ERROR_DISPLAY, ERROR_INVALID_PARAM, height, mirror_convert_frame(), mirror_free_string(), SET_ERRNO, and width.

Referenced by EMSCRIPTEN_BINDINGS().

renderAudio()

std::optional< std::string > MirrorFrameBinding::renderAudio ( unsigned width, unsigned height, int source )

inline

Definition at line 71 of file frame.cpp.

                                                                                  {
    if (!width || !height || (source != 0 && source != 1)) {
      SET_ERRNO(ERROR_INVALID_PARAM, "Invalid audio visualization dimensions or source");
      return std::nullopt;
    }
    char *frame = mirror_render_audio_visualization(width, height, source);
    if (!frame) {
      SET_ERRNO(ERROR_DISPLAY, "Audio visualization rendering failed");
      return std::nullopt;
    }
    std::string result(frame);
    mirror_free_string(frame);
    return result;
  }

References ERROR_DISPLAY, ERROR_INVALID_PARAM, height, mirror_free_string(), mirror_render_audio_visualization(), SET_ERRNO, source, and width.

Referenced by EMSCRIPTEN_BINDINGS().

submitAudio()

void MirrorFrameBinding::submitAudio ( VisualizationSamples samples, int source )

inline

Definition at line 52 of file frame.cpp.

                                                             {
    if (source != 0 && source != 1) {
      SET_ERRNO(ERROR_INVALID_PARAM, "Invalid audio visualization source: %d", source);
      return;
    }
    const size_t length = samples["length"].as<size_t>();
    if (!length)
      return;
    const size_t chunk_size = std::min(length, size_t{8192});
    audio_.resize(chunk_size);
    for (size_t offset = 0; offset < length;) {
      const size_t count = std::min(chunk_size, length - offset);
      emscripten::val part = samples.call<emscripten::val>("subarray", offset, offset + count);
      emscripten::val view = emscripten::val(emscripten::typed_memory_view(count, audio_.data()));
      view.call<void>("set", part);
      mirror_submit_audio_samples(audio_.data(), static_cast<int>(count), source);
      offset += count;
    }
  }

References ERROR_INVALID_PARAM, mirror_submit_audio_samples(), SET_ERRNO, and source.

Referenced by EMSCRIPTEN_BINDINGS().

transform()

int MirrorFrameBinding::transform ( RgbaBytes rgba, int width, int height )

inline

Definition at line 38 of file frame.cpp.

                                                       {
    const size_t length = rgba["byteLength"].as<size_t>();
    if (width <= 0 || height <= 0 || static_cast<uint64_t>(width) * static_cast<uint64_t>(height) * 4 != length)
      return SET_ERRNO(ERROR_INVALID_PARAM, "Invalid capture image: %dx%d, %zu bytes", width, height, length);
    input_.resize(length);
    emscripten::val view = emscripten::val(emscripten::typed_memory_view(length, input_.data()));
    view.call<void>("set", rgba);
    const int result = browser_capture_transform_rgba(input_.data(), width, height);
    if (!result) {
      emscripten::val result_view = emscripten::val(emscripten::typed_memory_view(length, input_.data()));
      rgba.call<void>("set", result_view);
    }
    return result;
  }

References browser_capture_transform_rgba(), ERROR_INVALID_PARAM, height, SET_ERRNO, and width.

Referenced by EMSCRIPTEN_BINDINGS().

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The documentation for this class was generated from the following file:

• frame.cpp