unitproc/bktemp-check_parsable_audio_ffprobe

   1 #!/usr/bin/env bash
   2
   3 check_parsable_audio_ffprobe() {
   4     # Desc: Checks if ffprobe returns valid audio codec name for file
   5     # Usage: check_parsable_audio_ffprobe [path FILE]
   6     # Version: 0.0.1
   7     # Input: arg1: file path
   8     # Output: exit code 0 if returns valid codec name; 1 otherwise
   9     # Depends: ffprobe, die()
  10     local file_in ffprobe_out
  11
  12     if [[ $# -ne 1 ]]; then die "ERROR:Invalid number of args:$#"; fi;
  13
  14     file_in="$1";
  15
  16     # Check if ffprobe detects an audio stream
  17     if ffprobe -v error -select_streams a -show_entries stream=codec_name -of default=nokey=1:noprint_wrappers=1 "$file_in" 1>/dev/null 2>&1; then
  18         return_state="true";
  19     else
  20         return_state="false";
  21     fi;
  22
  23     # Fail if ffprobe returns no result
  24     ffprobe_out="$(ffprobe -v error -select_streams a -show_entries stream=codec_name -of default=nokey=1:noprint_wrappers=1 "$file_in")";
  25     if [[ -z $ffprobe_out ]]; then
  26         return_state="false";
  27     fi;
  28
  29     # Report exit code
  30     if [[ $return_state = "true" ]]; then
  31         return 0;
  32     else
  33         return 1;
  34     fi;
  35 } # Checks if file has valid codec name using ffprobe
  36
  37 # Author: Steven Baltakatei Sandoval
  38 # License: GPLv3+