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ffmpeg: Avoid listing child classes for AVFormatContext and AVCodecContext
As they actually have every encoder/format as their child classes, this will result in a lot of extra options being added.
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a28eac08ae
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@ -728,41 +728,33 @@ void GetOptionListSingle(std::vector<OptionInfo>& out, const AVClass* av_class)
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}
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}
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void GetOptionList(std::vector<OptionInfo>& out, const AVClass* av_class) {
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void GetOptionList(std::vector<OptionInfo>& out, const AVClass* av_class, bool search_children) {
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if (av_class == nullptr) {
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return;
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}
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GetOptionListSingle(out, av_class);
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if (!search_children) {
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return;
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}
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const AVClass* child_class = nullptr;
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while ((child_class = av_opt_child_class_next(av_class, child_class))) {
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GetOptionListSingle(out, child_class);
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}
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}
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std::vector<OptionInfo> GetOptionList(const AVClass* av_class) {
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std::vector<OptionInfo> GetOptionList(const AVClass* av_class, bool search_children) {
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std::vector<OptionInfo> out;
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GetOptionList(out, av_class);
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// Filter out identical options (why do they exist in the first place?)
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std::unordered_set<std::string> option_name_set;
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std::vector<OptionInfo> final_out;
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for (auto& option : out) {
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if (option_name_set.count(option.name)) {
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continue;
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}
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option_name_set.emplace(option.name);
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final_out.emplace_back(std::move(option));
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}
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return final_out;
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GetOptionList(out, av_class, search_children);
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return out;
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}
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std::vector<EncoderInfo> ListEncoders(AVMediaType type) {
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InitializeFFmpegLibraries();
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const auto general_options = GetOptionList(avcodec_get_class());
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const auto general_options = GetOptionList(avcodec_get_class(), false);
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std::vector<EncoderInfo> out;
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@ -776,7 +768,7 @@ std::vector<EncoderInfo> ListEncoders(AVMediaType type) {
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if (!av_codec_is_encoder(current) || current->type != type) {
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continue;
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}
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auto options = GetOptionList(current->priv_class);
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auto options = GetOptionList(current->priv_class, true);
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options.insert(options.end(), general_options.begin(), general_options.end());
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out.push_back(
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{current->name, ToStdString(current->long_name), current->id, std::move(options)});
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@ -787,7 +779,7 @@ std::vector<EncoderInfo> ListEncoders(AVMediaType type) {
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std::vector<FormatInfo> ListFormats() {
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InitializeFFmpegLibraries();
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const auto general_options = GetOptionList(avformat_get_class());
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const auto general_options = GetOptionList(avformat_get_class(), false);
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std::vector<FormatInfo> out;
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@ -798,7 +790,7 @@ std::vector<FormatInfo> ListFormats() {
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void* data = nullptr; // For libavformat to save the iteration state
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while ((current = av_muxer_iterate(&data))) {
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#endif
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auto options = GetOptionList(current->priv_class);
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auto options = GetOptionList(current->priv_class, true);
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options.insert(options.end(), general_options.begin(), general_options.end());
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std::vector<std::string> extensions;
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