Several bugfixes - bitreich-tv - Meme TV encoding and streaming
(HTM) git clone git://bitreich.org/bitreich-tv git://enlrupgkhuxnvlhsf6lc3fziv5h2hhfrinws65d7roiv6bfj7d652fid.onion/bitreich-tv
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---
(DIR) commit 9955fec4d21435eae1aa98c8c7078932d192df5c
(DIR) parent 3a8559a5c96734befbfdb580c7e8a2ab491ea6d4
(HTM) Author: Anders Damsgaard <anders@adamsgaard.dk>
Date: Tue, 11 Aug 2020 21:26:32 +0200
Several bugfixes
Diffstat:
M brtv-start.sh | 51 ++++++++++++++++++++-----------
1 file changed, 33 insertions(+), 18 deletions(-)
---
(DIR) diff --git a/brtv-start.sh b/brtv-start.sh
@@ -1,12 +1,6 @@
#!/bin/sh
-# generate title animations and start streaming server
-
-pass="$(gpg2 -q -d icecastpass.gpg)"
-
-if [ $# -ne 1 ]; then
- printf 'usage: %s <memecache_path>\n' "$0" >&2
- exit
-fi
+# generate title animations and start streaming to server
+# requirements: ffmpeg(1), convert(1)
### CONFIGURATION START
@@ -44,6 +38,20 @@ title_display_time=5
### CONFIGURATION END
+pass="$(gpg2 -q -d icecastpass.gpg)"
+
+die() {
+ printf '%s: error: %s\n' "${0##*/}" "$1" >&2
+ exit 1
+}
+
+regeximatch() {
+ printf '%s' "$1" | grep -iEq "$2"
+}
+
+if [ $# -ne 1 ]; then
+ die "usage: ${0##*/} <memecache_path>"
+fi
fit_img_16_9() {
convert -resize "$video_resolution"\> -size "$video_resolution" "$1" \
@@ -62,6 +70,7 @@ video_from_img() {
title_slide() {
img="$(basename "${1%.*}".png)"
+ #echo "title_slide $1 -> $img"
convert -size "$video_resolution" "xc:${bgcolor}" \
-pointsize 48 -fill "$fgcolor" \
-gravity center -draw "text 0,0 '#${img%.*}'" "$img"
@@ -70,21 +79,28 @@ title_slide() {
-i anullsrc=r=48000 \
-i "$img" \
-t "${title_display_time}" \
- $ffmpec_codec \
+ $ffmpeg_codec \
"$2" && rm "$img"
}
video_conv() {
- ffmpeg -y -i "$1" $ffmpeg_codec -max_muxing_queue_size 1024 "$2"
+ printf 'encode %s -> %s\n' "$1" "$2"; ffmpeg -y -i "$1" $ffmpeg_codec -max_muxing_queue_size 1024 "$2"
}
mkdir -p "$title"
mkdir -p "$memecache_conv"
# generate video from each image
-for f in "$memecache"/*.{jpg,jpeg,JPG,png,PNG}; do
+for f in "$memecache"/*.jpg \
+ "$memecache"/*.jpeg \
+ "$memecache"/*.JPG \
+ "$memecache"/*.png \
+ "$memecache"/*.PNG; do
out="${memecache_conv}/$(basename "${f%.*}.${video_ext}")"
- if [ -e "$f" ] && [ ! -e "$out" ]; then
+ if [ ! -f "$out" ]; then
+ if ! regeximatch "$(file -ib "$f")" "^image\/"; then
+ die "input image $f is invalid ($(file -b "$f"))"
+ fi
printf 'in: %s, out: %s\n' "$f" "$out"
fit_img_16_9 "$f" "${out%.*}.jpg"
video_from_img "${out%.${video_ext}}.jpg" "${out}"
@@ -96,18 +112,17 @@ if [ ! -f "bitreich-tv.${video_ext}" ]; then
title_slide bitreich-tv bitreich-tv.${video_ext}
fi
-
-# make title slides for video and converted images and encode to common codec
+# make title slides for video and converted images and encode all video clips to common codec
for f in "$memecache"/*.mkv \
"$memecache"/*.mp4 \
"$memecache"/*.webm \
"$memecache_conv"/*."${video_ext}"; do
- title_path="${title}/$(basename "${f%.*}.webm")"
- [ ! -e "$title_path" ] && title_slide "$f" "$title_path"
+ title_path="${title}/$(basename "${f%.*}.${video_ext}")"
+ [ ! -f "$title_path" ] && title_slide "$f" "$title_path"
- out="${memecache_conv}/$(basename "${f%.*}.webm")"
- [ ! -e "$out" ] && video_conv "$f" "$out"
+ out="${memecache_conv}/$(basename "${f%.*}.${video_ext}")"
+ [ ! -f "$out" ] && video_conv "$f" "$out"
done
# generate random playlist from converted memes and add title slides