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ffmpeg/tools: Helpers for easily populating OBS property lists
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2 changed files with 88 additions and 0 deletions
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@ -183,6 +183,83 @@ AVColorTransferCharacteristic streamfx::ffmpeg::tools::obs_to_av_color_transfer_
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}
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}
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const char* tools::avoption_name_from_unit_value(const void* obj, std::string_view unit, int64_t value)
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{
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for (const AVOption* opt = nullptr; (opt = av_opt_next(obj, opt)) != nullptr;) {
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// Skip all irrelevant options.
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if (!opt->unit)
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continue;
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if (opt->unit != unit)
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continue;
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if (opt->name == unit)
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continue;
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if (opt->default_val.i64 == value)
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return opt->name;
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}
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return nullptr;
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}
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bool tools::avoption_exists(const void* obj, std::string_view name)
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{
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for (const AVOption* opt = nullptr; (opt = av_opt_next(obj, opt)) != nullptr;) {
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if (name == opt->name)
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return true;
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}
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return false;
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}
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void tools::avoption_list_add_entries_unnamed(const void* obj, std::string_view unit, obs_property_t* prop,
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std::function<bool(const AVOption*)> filter)
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{
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for (const AVOption* opt = nullptr; (opt = av_opt_next(obj, opt)) != nullptr;) {
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// Skip all irrelevant options.
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if (!opt->unit)
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continue;
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if (opt->unit != unit)
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continue;
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if (opt->name == unit)
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continue;
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// Skip any deprecated options.
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if (opt->flags & AV_OPT_FLAG_DEPRECATED)
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continue;
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if (filter && filter(opt))
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continue;
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// Generate name and add to list.
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obs_property_list_add_int(prop, opt->name, opt->default_val.i64);
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}
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}
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void tools::avoption_list_add_entries(const void* obj, std::string_view unit, obs_property_t* prop,
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std::string_view prefix, std::function<bool(const AVOption*)> filter)
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{
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for (const AVOption* opt = nullptr; (opt = av_opt_next(obj, opt)) != nullptr;) {
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// Skip all irrelevant options.
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if (!opt->unit)
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continue;
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if (opt->unit != unit)
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continue;
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if (opt->name == unit)
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continue;
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// Skip any deprecated options.
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if (opt->flags & AV_OPT_FLAG_DEPRECATED)
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continue;
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// Skip based on filter function.
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if (filter && filter(opt))
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continue;
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// Generate name and add to list.
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char buffer[1024];
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snprintf(buffer, sizeof(buffer), "%s.%s\0", prefix.data(), opt->name);
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obs_property_list_add_int(prop, D_TRANSLATE(buffer), opt->default_val.i64);
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}
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}
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bool tools::can_hardware_encode(const AVCodec* codec)
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{
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AVPixelFormat hardware_formats[] = {AV_PIX_FMT_D3D11};
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@ -29,6 +29,7 @@ extern "C" {
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#pragma warning(disable : 4242 4244 4365)
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#endif
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#include <libavcodec/avcodec.h>
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#include <libavutil/opt.h>
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#include <libavutil/pixfmt.h>
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#ifdef _MSC_VER
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#pragma warning(pop)
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@ -80,4 +81,14 @@ namespace streamfx::ffmpeg::tools {
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void print_av_option_string2(AVCodecContext* ctx_codec, void* ctx_option, std::string_view option,
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std::string_view text, std::function<std::string(int64_t, std::string_view)> decoder);
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bool avoption_exists(const void* obj, std::string_view name);
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const char* avoption_name_from_unit_value(const void* obj, std::string_view unit, int64_t value);
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void avoption_list_add_entries_unnamed(const void* obj, std::string_view unit, obs_property_t* prop,
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std::function<bool(const AVOption*)> filter = nullptr);
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void avoption_list_add_entries(const void* obj, std::string_view unit, obs_property_t* prop,
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std::string_view prefix, std::function<bool(const AVOption*)> filter = nullptr);
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} // namespace streamfx::ffmpeg::tools
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