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256 lines
9.9 KiB
256 lines
9.9 KiB
1 year ago
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#!/bin/bash
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# Общественное достояние, 2024, Алексей Безбородов (Alexei Bezborodov) <AlexeiBv+mirocod_pdf2video@narod.ru>
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# Озвучивание русского текста из файла pdf и сохранение в видео
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version=1.0
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# Формат:
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# "Однобуквенная команда|Расширенная команда|Справка|Параметр|Значение по умолчанию|Команда на исполнение"
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# Параметр: Пусто - нет параметров, : - есть параметр, :: - параметр не обязателен
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common_params=(
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"h|help|Посмотреть помощь.|||ShowHelp; exit;"
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"v|version|Посмотреть версию программы.|||echo \$version; exit;"
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"V|verbose|Подробный вывод.|||verbose=true"
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# "|||||"
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)
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sound_params=(
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"i|input|Входной текстовый файл.|:||"
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"e|emotion|Эмоциональный настрой говорящего. Может принимать значения 'neutral', 'good', 'evil'. По умолчанию '!DEFAULT!'.|:|'neutral'|"
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"s|speaker|Голос говорящего. Может принимать значения 'oksana','jane','omazh','zahar','ermil','silaerkan','erkanyavas','alyss', 'nick'. По умолчанию '!DEFAULT!'.|:|'erkanyavas'|"
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"S|speed|Скорость озвучки. По умолчанию '!DEFAULT!'.|:|'1.0'|"
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"O|ffmpeg_opt|Дополнительные параметры ffmpeg.|:|''|"
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"f|format|Выходной формат. Может быть либо 'mp3', либо 'wav'. По умолчанию '!DEFAULT!'.|:|'mp3'|"
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"q|quality|Качество выходного файла. Может быть либо 'hi', либо 'lo'. По умолчанию '!DEFAULT!'.|:|'hi'|"
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"l|lang|Язык озвучки. По умолчанию '!DEFAULT!'.|:|'ru_RU'|"
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# "|||:||"
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)
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video_params=(
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"o|output|Выходной видео файл.|:|''|"
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"k|split|Деление страницы пополам. Может быть либо 'yes', либо 'no'. По умолчанию '!DEFAULT!'.|:|'yes'|"
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"W|video_width|Размер видео в пикселях по ширине. По умолчанию '!DEFAULT!'.|:|1920|"
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"H|video_height|Размер видео в пикселях по высоте. По умолчанию '!DEFAULT!'.|:|1080|"
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"p|ffmpeg_pre_options|Опции ffmpeg в самом начале. По умолчанию '!DEFAULT!'.|:|'-loop 1 -r 2'|"
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"P|ffmpeg_options|Опции ffmpeg. По умолчанию '!DEFAULT!'.|:|'-c:v libx264 -tune stillimage -preset ultrafast -crf 20 -shortest -pix_fmt yuv420p'|"
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"r|page_range|Указывает страницы из выходного файла для обработки. Пример '{1..32}', '{2..10..2}', '\$(seq 5 3 30)'|:|''|"
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"m|minimum_text_on_page|Минимальное количество символов на странице при котором происходит разделение страницы на две. По умолчанию '!DEFAULT!'.|:|1000|"
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# "|||:||"
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)
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all_params=("${common_params[@]}" "${sound_params[@]}" "${video_params[@]}")
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# Загружаем библиотеку
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function GetExec {
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local exec_file_name="$1"
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exec="$exec_file_name"
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[ ! -f "$exec" ] && exec="./$exec_file_name"
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[ ! -f "$exec" ] && exec="~/$exec_file_name"
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echo "$exec"
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}
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eval "source $(GetExec "parse_arg_lib")"
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function ShowHelp() {
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cat << EOF
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Использование: pdf2video -i <text_file> [-o <mp4_file>] [-hV]
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Озвучивание русского текста из файла pdf и сохранение в видео
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Общие параметры
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$(ProcessParams common_params Params2Help)
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Параметры звука
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$(ProcessParams sound_params Params2Help)
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Параметры видео
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$(ProcessParams video_params Params2Help)
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EOF
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}
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# -------------------------------------------
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while true
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do
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cur_arg="$1"
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[ "$cur_arg" = '--' ] && { shift; break; }
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ProcessParams all_params Params2Case "$cur_arg" "$2"
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shift
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done
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input_file="$input"
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out_file="$output"
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unuse_param="$*"
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if [ "${input_file}" = "" ] || [ "${unuse_param}" != "" ]; then
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[ "${unuse_param}" != "" ] && echo "Параметры не расшифрованы \"$unuse_param\""
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ShowHelp
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exit
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fi
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[ "$out_file" = "" ] && { out_file="${input_file}.mp4"; [ $verbose ] && echo "Выходное имя файла \"$out_file\""; }
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#----------------------------------------------------
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page_count=$(pdfinfo "${input_file}" | awk '/^Pages:/ {print $2}')
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video_file_names_array=()
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function Text2mp3 {
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local text_file=$1
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local mp3_file=$2
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verb=""
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[ $verbose ] && verb="-V"
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[ $verbose ] && echo "Найден исполняемый файл для преобразования в звук текста $(GetExec txt2mp3)"
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eval "$(GetExec "txt2mp3") -i '${text_file}' -o '${mp3_file}' -e '${emotion}' -s '${speaker}' -S '${speed}' -f '${format}' -q '${quality}' -l '${lang}' '${verb}'"
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}
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function MakeVideo {
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local page_image_file=$1
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local page_mp3_file=$2
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local page_mp4_file=$3
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local resized_page_image_file="${page_image_file}_resized.png"
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ffmpeg -y -i "${page_image_file}" -vf "scale=${video_width}:${video_height}:force_original_aspect_ratio=decrease,pad=${video_width}:${video_height}:(ow-iw)/2:(oh-ih)/2" "${resized_page_image_file}"
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local time_play=$(mp3info -p "%S\n" "${page_mp3_file}")
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local time_opt="-c:a copy"
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if [ ${minimum_time_on_page} -ge ${time_play} ]; then
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local add_time=5 # $(( 5 - ${time_play} ))
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time_opt="-c:a mp3 -af adelay=${add_time}s:all=true" #
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[ $verbose ] && echo "time_opt ${time_opt}"
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fi
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ffmpeg ${ffmpeg_pre_options} -i "${resized_page_image_file}" -i "${page_mp3_file}" ${ffmpeg_options} ${time_opt} "${page_mp4_file}"
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SAVE_IFS=$IFS
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IFS=""
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video_file_names_array+=(${page_mp4_file})
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IFS=$SAVE_IFS
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rm "${resized_page_image_file}"
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}
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[ $verbose ] && echo "Всего страниц $page_count"
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for ((page=1;page<=${page_count};page++)); do
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if [ $page_range ]; then
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skip="true"
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for p in $(eval echo "$page_range");
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do
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if [ $p = $page ]; then
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skip="false"
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break
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fi
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done
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if [ $skip = "true" ]; then
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[ $verbose ] && echo "Пропускаем страницу №$page"
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continue
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fi
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fi
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[ $verbose ] && echo "------------------------------------------------"
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[ $verbose ] && echo "Обрабатываем страницу №$page"
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page_text_file="${input_file}_${page}.txt"
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page_image_file="${input_file}_${page}"
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pdftotext -f $page -l $page "${input_file}" "$page_text_file"
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pdftoppm -r 300 -f $page -l $page -png -singlefile "${input_file}" "$page_image_file"
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page_image_file="${page_image_file}.png"
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source_text="$(cat "${page_text_file}")"
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if [ "$split" = "yes" ] && [ ${#source_text} -ge $minimum_text_on_page ]; then
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space_char=" "
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split_size=$(( ${#source_text} / 2 + 2)) # Половина с небольшим запасом
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file_index=0
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for ((i=1;i<=${#source_text};i++)); do
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cur_char=${source_text:$i-1:1}
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cur_text="${cur_text}${cur_char}"
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if [ "$cur_char" = "$space_char" ] && [ ${#cur_text} -ge $split_size ] || [ $i = ${#source_text} ]; then
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let file_index+=1
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echo "$cur_text" > "${page_text_file}_half${file_index}"
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cur_text=""
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fi
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done
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file_txt_half1="${page_text_file}_half1"
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file_txt_half2="${page_text_file}_half2"
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page_mp3_file_half1="${file_txt_half1}.mp3"
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page_mp3_file_half2="${file_txt_half2}.mp3"
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Text2mp3 "$file_txt_half1" "$page_mp3_file_half1"
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Text2mp3 "$file_txt_half2" "$page_mp3_file_half2"
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width=$(identify -format "%w" "$page_image_file")> /dev/null
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height=$(identify -format "%h" "$page_image_file")> /dev/null
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height_half=$(( $height / 2 + $height / 20 ))
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page_image_file_half1="${page_image_file}_half1.png"
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page_image_file_half2="${page_image_file}_half2.png"
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# format (widthxheight+left+top / wxh+l+t)
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convert "$page_image_file" -crop ${width}x${height_half}+0+0 "$page_image_file_half1"
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convert "$page_image_file" -crop ${width}x${height_half}+0+$(( $height - $height_half )) "$page_image_file_half2"
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page_mp4_file_half1="${input_file}_${page}_half1.mp4"
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page_mp4_file_half2="${input_file}_${page}_half2.mp4"
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MakeVideo "$page_image_file_half1" "$page_mp3_file_half1" "$page_mp4_file_half1"
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MakeVideo "$page_image_file_half2" "$page_mp3_file_half2" "$page_mp4_file_half2"
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rm "$page_image_file_half1"
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rm "$page_image_file_half2"
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rm "$file_txt_half1"
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rm "$file_txt_half2"
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rm "$page_mp3_file_half1"
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rm "$page_mp3_file_half2"
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else
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page_mp3_file="${page_text_file}.mp3"
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Text2mp3 "$page_text_file" "$page_mp3_file"
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page_mp4_file="${input_file}_${page}.mp4"
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MakeVideo "$page_image_file" "$page_mp3_file" "$page_mp4_file"
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rm "$page_mp3_file"
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fi
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rm "$page_image_file"
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rm "$page_text_file"
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done
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SAVE_IFS=$IFS
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IFS=""
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[ $verbose ] && echo "Объединяем файлы ${video_file_names_array[*]} в $out_file"
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ffmpeg -f concat -safe 0 -i <(for ((i = 0; i < ${#video_file_names_array[@]}; i++)) do echo "file '$PWD/${video_file_names_array[$i]}'"; done) -acodec copy -vcodec copy "$out_file"
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for ((i = 0; i < ${#video_file_names_array[@]}; i++)) do
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f="${video_file_names_array[$i]}"
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[ $verbose ] && echo "Удаляем файл '$f'"
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rm "$f"
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done
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IFS=$SAVE_IFS
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[ $verbose ] && echo "Конечный файл создан '$out_file'!"
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