diff --git a/check_audio_framemd5.sh b/check_audio_framemd5.sh new file mode 100755 index 0000000..e49d3b1 --- /dev/null +++ b/check_audio_framemd5.sh @@ -0,0 +1,77 @@ +#!/usr/bin/env bash + SCRIPT=$(basename "${0}") + VERSION='2017-04-15' + AUTHOR='ffmprovisr' + RED='\033[1;31m' + BLUE='\033[1;34m' + NC='\033[0m' + +if [[ ${OSTYPE} = "cygwin" ]] || [ ! $(which diff) ]; then + echo -e "${RED}Error: 'diff' is not installed by default. Please install 'diffutils' from Cygwin.${NC}" + exit 1 +fi + +_output_prompt(){ + cat < -m ] +EOF + exit 1 +} + +_output_help(){ + cat < -m + Pass to the script the audio-visual file and the corresponding MD5 + file to check. +Dependency: + ffmpeg +About: + Version: ${VERSION} + Website: https://github.com/amiaopensource/ffmprovisr/blob/gh-pages/check_audio_framemd5.sh +EOF + exit 0 +} + +unset input_file +unset input_hash + +while getopts ":hi:m:" opt; do + case "${opt}" in + h) _output_help ;; + i) input_file=$OPTARG ;; + m) input_hash=$OPTARG ;; + :) echo -e "${RED}Error: option -${OPTARG} requires an argument${NC}" ; _output_prompt ;; + *) echo -e "${RED}Error: bad option -${OPTARG}${NC}" ; _output_prompt ;; + esac +done + +[[ -z "${#}" || ! ${input_file} || ! ${input_hash} ]] && _output_prompt +echo -e "${BLUE}Please wait...${NC}" +unset md5_tmp +if [[ $OSTYPE = "cygwin" ]]; then + md5_tmp="${USERPROFILE}/$(basename "${input_hash}").tmp" +else + md5_tmp="${HOME}/$(basename "${input_hash}").tmp" +fi +# Find audio frame size for hash calculation +sample_rate=$(grep -v '^#' "${input_hash}" | head -n 1 | tr -d ' ' | cut -d',' -f4) +ffmpeg -i "${input_file}" -loglevel 0 -af "asetnsamples=n='$sample_rate'" -f framemd5 -vn "${md5_tmp}" +[[ ! -f ${md5_tmp} ]] && { echo -e "${RED}Error: '${input_file}' is not a valid audio-visual file.${NC}" ; _output_prompt ; } +unset old_file +unset tmp_file +unset sample_rate +old_file=$(grep -v '^#' "${input_hash}") +tmp_file=$(grep -v '^#' "${md5_tmp}") +if [[ "${old_file}" = "${tmp_file}" ]]; then + echo -e "${BLUE}'$(basename "${input_file}")' matches '$(basename "${input_hash}")'${NC}" + rm "${md5_tmp}" +else + echo -e "${RED}The following differences were detected between '$(basename "${input_file}")' and '$(basename "${input_hash}")':${NC}" + diff "${input_hash}" "${md5_tmp}" + rm "${md5_tmp}" +fi diff --git a/check_framemd5.sh b/check_video_framemd5.sh similarity index 71% rename from check_framemd5.sh rename to check_video_framemd5.sh index d5519a4..3dc8b10 100644 --- a/check_framemd5.sh +++ b/check_video_framemd5.sh @@ -1,6 +1,6 @@ #!/usr/bin/env bash SCRIPT=$(basename "${0}") - VERSION='2016-12-31' + VERSION='2017-04-16' AUTHOR='ffmprovisr' RED='\033[1;31m' BLUE='\033[1;34m' @@ -32,7 +32,7 @@ Dependency: ffmpeg About: Version: ${VERSION} - Website: https://github.com/amiaopensource/ffmprovisr/blob/gh-pages/check_framemd5.sh + Website: https://github.com/amiaopensource/ffmprovisr/blob/gh-pages/check_video_framemd5.sh EOF exit 0 } @@ -54,21 +54,21 @@ done echo -e "${BLUE}Please wait...${NC}" unset md5_tmp if [[ $OSTYPE = "cygwin" ]]; then - md5_tmp=""${USERPROFILE}/$(basename ${input_hash}).tmp"" + md5_tmp="${USERPROFILE}/$(basename "${input_hash}").tmp" else - md5_tmp="${HOME}/$(basename ${input_hash}).tmp" + md5_tmp="${HOME}/$(basename "${input_hash}").tmp" fi -$(ffmpeg -i ${input_file} -loglevel 0 -f framemd5 -an ${md5_tmp}) -[[ ! -f ${md5_tmp} ]] && { echo -e "${RED}Error: '${input_file}' is not a valid audio-visual file.${NC}" ; _output_prompt ; } +ffmpeg -i "${input_file}" -loglevel 0 -f framemd5 -an "${md5_tmp}" +[[ ! -f "${md5_tmp}" ]] && { echo -e "${RED}Error: '${input_file}' is not a valid audio-visual file.${NC}" ; _output_prompt ; } unset old_file unset tmp_file -old_file=$(grep -v '^#' ${input_hash}) -tmp_file=$(grep -v '^#' ${md5_tmp}) +old_file=$(grep -v '^#' "${input_hash}") +tmp_file=$(grep -v '^#' "${md5_tmp}") if [[ "${old_file}" = "${tmp_file}" ]]; then - echo -e "${BLUE}'$(basename ${input_file})' matches '$(basename ${input_hash})'${NC}" + echo -e "${BLUE}'$(basename "${input_file}")' matches '$(basename "${input_hash}")'${NC}" rm "${md5_tmp}" else - echo -e "${RED}The following differences were detected between '$(basename ${input_file})' and '$(basename ${input_hash})':${NC}" + echo -e "${RED}The following differences were detected between '$(basename "${input_file}")' and '$(basename "${input_hash}")':${NC}" diff "${input_hash}" "${md5_tmp}" rm "${md5_tmp}" fi diff --git a/index.html b/index.html index cec4ef0..e222463 100644 --- a/index.html +++ b/index.html @@ -1172,7 +1172,7 @@ foreach ($file in $inputfiles) {
-an
ignores the audio stream (audio no)
output_file
path, name and extension of the output file
-

You may verify an MD5 checksum file created this way by using a Bash script.

+

You may verify an MD5 checksum file created this way by using a Bash script.

@@ -1187,13 +1187,14 @@ foreach ($file in $inputfiles) {

Create MD5 checksums (audio samples)

-

ffmpeg -i input_file -filter_complex "asetnsamples=n=48000" -f framemd5 -vn output_file

+

ffmpeg -i input_file -af "asetnsamples=n=48000" -f framemd5 -vn output_file

This will create an MD5 checksum for each group of 48000 audio samples.
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).

Examples for other samplerates:

  • 44.1 kHz: "asetnsamples=n=44100"
  • 96 kHz: "asetnsamples=n=96000"
+

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.

ffmpeg
starts the command
-i input_file
path, name and extension of the input file
@@ -1201,7 +1202,7 @@ foreach ($file in $inputfiles) {
-vn
ignores the video stream (video no)
output_file
path, name and extension of the output file
-

You may verify an MD5 checksum file created this way by using a Bash script.

+

You may verify an MD5 checksum file created this way by using a Bash script.