Update 2026-03-13

config/yazi/plugins/mediainfo.yazi/video.lua

@@ -0,0 +1,222 @@
+--- @since 26.1.22
+
+local M = {}
+local const = require(".const")
+local utils = require(".utils")
+
+function M:peek(job)
+	local preload_status, preload_err = self:preload(job)
+	-- Stop if preload failed
+	if not preload_status then
+		return
+	end
+
+	local cache_img_url = ya.file_cache({
+		skip = job.skip > 90 and 90 or job.skip,
+		args = job.args,
+		file = job.file,
+		area = job.area,
+	})
+	local cache_img_url_no_skip = ya.file_cache({ file = job.file, skip = 0 })
+
+	local hide_metadata = utils.get_state(const.STATE_KEY.hide_metadata)
+	local mediainfo_job_skip = job.skip
+	::recalc_mediainfo_job_skip::
+	local mediainfo_height = 0
+	local lines = {}
+	local limit = job.area.h
+	local last_line = 0
+	local EOF_mediainfo = true
+	local is_wrap = rt.preview.wrap == "yes" or rt.preview.wrap == ui.Wrap.YES
+
+	if not hide_metadata then
+		local cache_mediainfo_path = tostring(cache_img_url_no_skip) .. const.suffix
+		local output = utils.read_mediainfo_cached_file(cache_mediainfo_path)
+		if output then
+			local max_width = math.max(1, job.area.w)
+			if output:match("^Error:") then
+				job.args.force_reload_mediainfo = true
+				preload_status, preload_err = self:preload(job)
+				if not preload_status or preload_err then
+					return
+				end
+				output = utils.read_mediainfo_cached_file(cache_mediainfo_path)
+			end
+
+			output = output:gsub("\n+$", "")
+
+			local iter = output:gmatch("[^\n]*")
+			local str = iter()
+
+			while str ~= nil do
+				local next_str = iter()
+				local label, value = str:match("(.*[^ ])  +: (.*)")
+				local line
+				if label then
+					if not const.skip_labels[label] then
+						line = ui.Line({
+							ui.Span(label .. ": "):style(ui.Style():fg("reset"):bold()),
+							ui.Span(value):style(th.spot.tbl_col or ui.Style():fg("blue")),
+						})
+					end
+				elseif str ~= "General" then
+					line = ui.Line({ ui.Span(str):style(th.spot.title or ui.Style():fg("green")) })
+				end
+
+				if line then
+					local line_height = ui.height
+							and ui.height(str, { width = max_width, ansi = true, wrap = rt.preview.wrap })
+						or (math.max(1, is_wrap and math.ceil(ui.width(line) / max_width) or 1))
+					if next_str == nil and line_height == 1 then
+						EOF_mediainfo = true
+					end
+					if (last_line + line_height) > mediainfo_job_skip then
+						table.insert(lines, line)
+					end
+					if (last_line + line_height) >= mediainfo_job_skip + limit then
+						last_line = mediainfo_job_skip + limit
+						EOF_mediainfo = false
+						break
+					end
+					last_line = last_line + line_height
+				end
+				str = next_str
+			end
+		end
+		mediainfo_height = math.min(limit, last_line)
+	end
+
+	if not hide_metadata then
+		if EOF_mediainfo and #lines == 0 and mediainfo_job_skip > 0 then
+			if job.skip > 90 then
+				ya.emit("peek", {
+					math.max(0, (job.skip - (utils.get_state(const.STATE_KEY.units) or 0))),
+					only_if = job.file.url,
+					upper_bound = true,
+				})
+				return
+			else
+				-- NOTE: Recalculate mediainfo using cached latest valid skip value when reach the end of mediainfo output
+				local last_valid_mediainfo_skip = utils.get_state(const.STATE_KEY.last_valid_mediainfo_skip)
+				mediainfo_job_skip = last_valid_mediainfo_skip
+						and last_valid_mediainfo_skip[tostring(cache_img_url_no_skip)]
+					or math.max(0, mediainfo_job_skip - (utils.get_state(const.STATE_KEY.units) or 0))
+
+				goto recalc_mediainfo_job_skip
+			end
+		else
+			utils.set_state(
+				const.STATE_KEY.last_valid_mediainfo_skip,
+				{ [tostring(cache_img_url_no_skip)] = mediainfo_job_skip }
+			)
+		end
+	end
+
+	-- NOTE: Hacky way to prevent image overlap with old metadata area
+	if utils.get_state(const.STATE_KEY.prev_metadata_area) then
+		ya.preview_widget(job, {
+			ui.Clear(ui.Rect(utils.get_state(const.STATE_KEY.prev_metadata_area))),
+		})
+	end
+
+	utils.force_render()
+	local rendered_img_rect = cache_img_url
+			and fs.cha(cache_img_url)
+			and ya.image_show(
+				cache_img_url,
+				ui.Rect({
+					x = job.area.x,
+					y = job.area.y,
+					w = job.area.w,
+					h = mediainfo_height > 0 and math.max(job.area.h - mediainfo_height, job.area.h / 2) or job.area.h,
+				})
+			)
+		or nil
+	local image_height = rendered_img_rect and rendered_img_rect.h or 0
+
+	-- NOTE: Workaround case video.lua doesn't doesn't generate preview image because of `skip` overflow video duration
+	if not rendered_img_rect then
+		local prev_image_height = utils.get_state(const.STATE_KEY.prev_image_height)
+		image_height = prev_image_height and prev_image_height[tostring(cache_img_url_no_skip)] or 0
+	else
+		utils.set_state(const.STATE_KEY.prev_image_height, { [tostring(cache_img_url_no_skip)] = image_height })
+	end
+
+	-- Handle image preload error
+	if preload_err then
+		table.insert(lines, ui.Line(tostring(preload_err)):style(th.spot.title or ui.Style():fg("red")))
+	end
+
+	ya.preview_widget(job, {
+		ui.Text(lines)
+			:area(ui.Rect({
+				x = job.area.x,
+				y = job.area.y + image_height,
+				w = job.area.w,
+				h = job.area.h - image_height,
+			}))
+			:wrap(is_wrap and ui.Wrap.YES or ui.Wrap.NO),
+	})
+
+	-- NOTE: Hacky way to prevent image overlap with old metadata area
+	utils.set_state(const.STATE_KEY.prev_metadata_area, not hide_metadata and {
+		x = job.area.x,
+		y = job.area.y + image_height,
+		w = job.area.w,
+		h = job.area.h - image_height,
+	} or nil)
+end
+
+function M:preload(job)
+	local cmd = "mediainfo"
+	local err_msg = ""
+
+	-- NOTE: Preload image from video
+
+	local cache_img_status, video_preload_err = require("video"):preload({
+		skip = job.skip > 90 and 90 or job.skip,
+		args = job.args,
+		file = job.file,
+		area = job.area,
+	})
+
+	if not cache_img_status and video_preload_err then
+		ya.dbg("mediainfo", video_preload_err)
+		err_msg = err_msg .. string.format("Failed to start `%s`.\n Do you have `%s` installed?\n", "ffmpeg", "ffmpeg")
+	end
+
+	-- NOTE: Get mediainfo and save to cache folder
+	local cache_mediainfo_url = Url(tostring(ya.file_cache({ file = job.file, skip = 0 })) .. const.suffix)
+	local cache_mediainfo_cha = fs.cha(cache_mediainfo_url)
+	-- Case peek function called preload to refetch mediainfo
+	if cache_mediainfo_cha and not job.args.force_reload_mediainfo then
+		return true, err_msg ~= "" and ("Error: " .. err_msg) or nil
+	end
+
+	local output, err
+	local is_valid_utf8_path = utils.is_valid_utf8(tostring(job.file.path or job.file.cache or job.file.url))
+	if is_valid_utf8_path then
+		output, err = Command(cmd)
+			:arg({ tostring(job.file.path or job.file.cache or job.file.url.path or job.file.url) })
+			:output()
+	else
+		cmd = "cd "
+			.. utils.path_quote(tostring((job.file.path or job.file.cache or job.file.url.path or job.file.url).parent))
+			.. " && "
+			.. cmd
+			.. " "
+			.. utils.path_quote(tostring((job.file.path or job.file.cache or job.file.url).name))
+		output, err = Command(const.SHELL):arg({ "-c", cmd }):output()
+	end
+	if err then
+		ya.dbg("mediainfo", tostring(err))
+		err_msg = err_msg .. string.format("Failed to start `%s`. \n Do you have `%s` installed?\n", cmd, cmd)
+	end
+
+	return fs.write(
+		cache_mediainfo_url,
+		(err_msg ~= "" and ("Error: " .. err_msg) or "") .. (output and output.stdout or "")
+	)
+end
+
+return M