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Merge pull request #173 from amiaopensource/weaver-branch
add script for comparing audio framemd5
This commit is contained in:
Reto Kromer
GitHub
commit
9477bcfe0a
77
check_audio_framemd5.sh
Executable file
77
check_audio_framemd5.sh
Executable file
@ -0,0 +1,77 @@
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#!/usr/bin/env bash
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SCRIPT=$(basename "${0}")
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VERSION='2017-04-15'
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AUTHOR='ffmprovisr'
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RED='\033[1;31m'
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BLUE='\033[1;34m'
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NC='\033[0m'
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if [[ ${OSTYPE} = "cygwin" ]] || [ ! $(which diff) ]; then
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echo -e "${RED}Error: 'diff' is not installed by default. Please install 'diffutils' from Cygwin.${NC}"
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exit 1
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fi
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_output_prompt(){
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cat <<EOF
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Usage: ${SCRIPT} [-h] | [ -i <av_file> -m <md5_file> ]
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EOF
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exit 1
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}
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_output_help(){
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cat <<EOF
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Syntax:
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${SCRIPT}
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Prompts a short help message.
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${SCRIPT} -h
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This help.
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${SCRIPT} -i <av_file> -m <md5_file>
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Pass to the script the audio-visual file and the corresponding MD5
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file to check.
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Dependency:
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ffmpeg
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About:
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Version: ${VERSION}
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Website: https://github.com/amiaopensource/ffmprovisr/blob/gh-pages/check_audio_framemd5.sh
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EOF
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exit 0
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}
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unset input_file
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unset input_hash
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while getopts ":hi:m:" opt; do
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case "${opt}" in
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h) _output_help ;;
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i) input_file=$OPTARG ;;
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m) input_hash=$OPTARG ;;
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:) echo -e "${RED}Error: option -${OPTARG} requires an argument${NC}" ; _output_prompt ;;
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*) echo -e "${RED}Error: bad option -${OPTARG}${NC}" ; _output_prompt ;;
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esac
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done
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[[ -z "${#}" || ! ${input_file} || ! ${input_hash} ]] && _output_prompt
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echo -e "${BLUE}Please wait...${NC}"
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unset md5_tmp
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if [[ $OSTYPE = "cygwin" ]]; then
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md5_tmp="${USERPROFILE}/$(basename "${input_hash}").tmp"
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else
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md5_tmp="${HOME}/$(basename "${input_hash}").tmp"
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fi
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# Find audio frame size for hash calculation
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sample_rate=$(grep -v '^#' "${input_hash}" | head -n 1 | tr -d ' ' | cut -d',' -f4)
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ffmpeg -i "${input_file}" -loglevel 0 -af "asetnsamples=n='$sample_rate'" -f framemd5 -vn "${md5_tmp}"
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[[ ! -f ${md5_tmp} ]] && { echo -e "${RED}Error: '${input_file}' is not a valid audio-visual file.${NC}" ; _output_prompt ; }
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unset old_file
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unset tmp_file
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unset sample_rate
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old_file=$(grep -v '^#' "${input_hash}")
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tmp_file=$(grep -v '^#' "${md5_tmp}")
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if [[ "${old_file}" = "${tmp_file}" ]]; then
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echo -e "${BLUE}'$(basename "${input_file}")' matches '$(basename "${input_hash}")'${NC}"
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rm "${md5_tmp}"
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else
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echo -e "${RED}The following differences were detected between '$(basename "${input_file}")' and '$(basename "${input_hash}")':${NC}"
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diff "${input_hash}" "${md5_tmp}"
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rm "${md5_tmp}"
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fi
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@ -1,6 +1,6 @@
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#!/usr/bin/env bash
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SCRIPT=$(basename "${0}")
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VERSION='2016-12-31'
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VERSION='2017-04-16'
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AUTHOR='ffmprovisr'
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RED='\033[1;31m'
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BLUE='\033[1;34m'
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@ -32,7 +32,7 @@ Dependency:
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ffmpeg
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About:
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Version: ${VERSION}
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Website: https://github.com/amiaopensource/ffmprovisr/blob/gh-pages/check_framemd5.sh
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Website: https://github.com/amiaopensource/ffmprovisr/blob/gh-pages/check_video_framemd5.sh
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EOF
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exit 0
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}
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@ -54,21 +54,21 @@ done
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echo -e "${BLUE}Please wait...${NC}"
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unset md5_tmp
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if [[ $OSTYPE = "cygwin" ]]; then
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md5_tmp=""${USERPROFILE}/$(basename ${input_hash}).tmp""
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md5_tmp="${USERPROFILE}/$(basename "${input_hash}").tmp"
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else
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md5_tmp="${HOME}/$(basename ${input_hash}).tmp"
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md5_tmp="${HOME}/$(basename "${input_hash}").tmp"
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fi
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$(ffmpeg -i ${input_file} -loglevel 0 -f framemd5 -an ${md5_tmp})
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[[ ! -f ${md5_tmp} ]] && { echo -e "${RED}Error: '${input_file}' is not a valid audio-visual file.${NC}" ; _output_prompt ; }
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ffmpeg -i "${input_file}" -loglevel 0 -f framemd5 -an "${md5_tmp}"
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[[ ! -f "${md5_tmp}" ]] && { echo -e "${RED}Error: '${input_file}' is not a valid audio-visual file.${NC}" ; _output_prompt ; }
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unset old_file
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unset tmp_file
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old_file=$(grep -v '^#' ${input_hash})
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tmp_file=$(grep -v '^#' ${md5_tmp})
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old_file=$(grep -v '^#' "${input_hash}")
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tmp_file=$(grep -v '^#' "${md5_tmp}")
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if [[ "${old_file}" = "${tmp_file}" ]]; then
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echo -e "${BLUE}'$(basename ${input_file})' matches '$(basename ${input_hash})'${NC}"
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echo -e "${BLUE}'$(basename "${input_file}")' matches '$(basename "${input_hash}")'${NC}"
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rm "${md5_tmp}"
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else
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echo -e "${RED}The following differences were detected between '$(basename ${input_file})' and '$(basename ${input_hash})':${NC}"
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echo -e "${RED}The following differences were detected between '$(basename "${input_file}")' and '$(basename "${input_hash}")':${NC}"
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diff "${input_hash}" "${md5_tmp}"
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rm "${md5_tmp}"
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fi
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@ -1172,7 +1172,7 @@ foreach ($file in $inputfiles) {
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<dt>-an</dt><dd>ignores the audio stream (audio no)</dd>
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<dt><i>output_file</i></dt><dd>path, name and extension of the output file</dd>
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</dl>
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<p>You may verify an MD5 checksum file created this way by using a <a href="check_framemd5.sh" target="_blank">Bash script</a>.</p>
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<p>You may verify an MD5 checksum file created this way by using a <a href="check_video_framemd5.sh" target="_blank">Bash script</a>.</p>
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<p class="link"></p>
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</div>
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</div>
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@ -1187,13 +1187,14 @@ foreach ($file in $inputfiles) {
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<div class="modal-content">
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<div class="well">
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<h3>Create MD5 checksums (audio samples)</h3>
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<p><code>ffmpeg -i <i>input_file</i> -filter_complex "asetnsamples=<i>n=48000</i>" -f framemd5 -vn <i>output_file</i></code></p>
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<p><code>ffmpeg -i <i>input_file</i> -af "asetnsamples=<i>n=48000</i>" -f framemd5 -vn <i>output_file</i></code></p>
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<p>This will create an MD5 checksum for each group of 48000 audio samples.<br> The number of samples per group can be set arbitrarily, but it's good practice to match the samplerate of the media file (so you will get one checksum per second).</p>
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<p>Examples for other samplerates:</p>
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<ul>
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<li>44.1 kHz: "asetnsamples=n=44100"</li>
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<li>96 kHz: "asetnsamples=n=96000"</li>
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</ul>
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<p>Note: This filter trandscodes audio to 16 bit PCM by default. The generated framemd5s will represent this value. Validating these framemd5s will require using the same default settings.</p>
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<dl>
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<dt>ffmpeg</dt><dd>starts the command</dd>
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<dt>-i <i>input_file</i></dt><dd>path, name and extension of the input file</dd>
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@ -1201,7 +1202,7 @@ foreach ($file in $inputfiles) {
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<dt>-vn</dt><dd>ignores the video stream (video no)</dd>
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<dt><i>output_file</i></dt><dd>path, name and extension of the output file</dd>
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</dl>
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<p>You may verify an MD5 checksum file created this way by using a <a href="check_framemd5.sh" target="_blank">Bash script</a>.</p>
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<p>You may verify an MD5 checksum file created this way by using a <a href="check_audio_framemd5.sh" target="_blank">Bash script</a>.</p>
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<p class="link"></p>
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</div>
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</div>
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