diff options
| -rwxr-xr-x | bin/decode+edit+encode | 14 | ||||
| -rwxr-xr-x | bin/decode+edit+loop+encode+stream | 14 | ||||
| -rwxr-xr-x | bin/encodevideo+loop+stream | 14 | ||||
| -rwxr-xr-x | bin/loop+encode+stream | 19 | ||||
| -rwxr-xr-x | bin/stream | 32 |
5 files changed, 62 insertions, 31 deletions
diff --git a/bin/decode+edit+encode b/bin/decode+edit+encode index deb732a..0b11a7e 100755 --- a/bin/decode+edit+encode +++ b/bin/decode+edit+encode @@ -29,6 +29,14 @@ elif [ $HEIGHT -le 720 ]; then # 720p → 921600 VBITRATE=3000000 fi +encode_vp8() { bitrate=$1; speed=$2; + echo_n "-codec:v vp8 -quality realtime -deadline 1000000 -cpu-used $speed \ + -b:v $bitrate -minrate $bitrate -maxrate $bitrate \ + -undershoot-pct 95 -bufsize $((6000*bitrate/1000)) -rc_init_occupancy $((4000*bitrate/1000)) \ + -max-intra-rate 0 \ + -qmin 4 -qmax 56" +} + mkdir -p $(dirname "$OUTPUT") # based on http://www.webmproject.org/docs/encoder-parameters/#real-time-cbr-encoding-and-streaming @@ -42,9 +50,5 @@ ffmpeg -hide_banner -threads auto -y -re \ "[0:v]format=pix_fmts=yuv420p,scale=iw*sar*$HEIGHT/ih:$HEIGHT,setsar=1[bg]; [bg][1:v]overlay=main_w-overlay_w-20:main_h-overlay_h-20[v]" \ -map '[v]' \ - -codec:v vp8 -quality realtime -deadline 1000000 -cpu-used "$SPEED_VP8" \ - -b:v "$VBITRATE" -minrate "$VBITRATE" -maxrate "$VBITRATE" \ - -undershoot-pct 95 -bufsize $((6000*VBITRATE/1000)) -rc_init_occupancy $((4000*VBITRATE/1000)) \ - -max-intra-rate 0 \ - -qmin 4 -qmax 56 \ + $(encode_vp8 "$VBITRATE" "$SPEED_VP8") \ -f webm "$OUTPUT" diff --git a/bin/decode+edit+loop+encode+stream b/bin/decode+edit+loop+encode+stream index 6e65697..8dba934 100755 --- a/bin/decode+edit+loop+encode+stream +++ b/bin/decode+edit+loop+encode+stream @@ -54,6 +54,14 @@ elif [ $BITS -le 921600 ]; then # 720p → 921600 SPEED_VP8=15 fi +encode_vp8() { bitrate=$1; speed=$2; + echo_n "-codec:v vp8 -quality realtime -deadline 1000000 -cpu-used $speed \ + -b:v $bitrate -minrate $bitrate -maxrate $bitrate \ + -undershoot-pct 95 -bufsize $((6000*bitrate/1000)) -rc_init_occupancy $((4000*bitrate/1000)) \ + -max-intra-rate 0 \ + -qmin 4 -qmax 56" +} + # based on http://www.webmproject.org/docs/encoder-parameters/#real-time-cbr-encoding-and-streaming # + loop-in-filter trick based on http://video.stackexchange.com/a/16933 # + scale+watermark trick based on http://stackoverflow.com/a/10937357 @@ -67,9 +75,5 @@ ffmpeg -hide_banner -threads auto -re \ "[0:v]format=pix_fmts=yuv420p,scale=iw*sar*$HEIGHT/ih:$HEIGHT,setsar=1[bg]; [bg][1:v]overlay=main_w-overlay_w-20:main_h-overlay_h-20[v]" \ -map '[v]' \ - -codec:v vp8 -quality realtime -deadline 1000000 -cpu-used "$SPEED_VP8" \ - -b:v "$VBITRATE" -minrate "$VBITRATE" -maxrate "$VBITRATE" \ - -undershoot-pct 95 -bufsize $((6000*VBITRATE/1000)) -rc_init_occupancy $((4000*VBITRATE/1000)) \ - -max-intra-rate 0 \ - -qmin 4 -qmax 56 \ + $(encode_vp8 "$VBITRATE" "$SPEED_VP8") \ -f rtp -payload_type 100 "rtp://$IP:$((FIRSTPORT+2))?pkt_size=1200" diff --git a/bin/encodevideo+loop+stream b/bin/encodevideo+loop+stream index b054782..ceded76 100755 --- a/bin/encodevideo+loop+stream +++ b/bin/encodevideo+loop+stream @@ -49,6 +49,14 @@ elif [ $BITS -le 921600 ]; then # 720p → 921600 SPEED_VP8=15 fi +encode_vp8() { bitrate=$1; speed=$2; + echo_n "-codec:v vp8 -quality realtime -deadline 1000000 -cpu-used $speed \ + -b:v $bitrate -minrate $bitrate -maxrate $bitrate \ + -undershoot-pct 95 -bufsize $((6000*bitrate/1000)) -rc_init_occupancy $((4000*bitrate/1000)) \ + -max-intra-rate 0 \ + -qmin 4 -qmax 56" +} + # based on http://www.webmproject.org/docs/encoder-parameters/#real-time-cbr-encoding-and-streaming # + Add 1s latency (deadline) # + Use same RTP payload types as GStreamer @@ -56,9 +64,5 @@ ffmpeg -hide_banner -threads auto -re \ -stream_loop -1 -i "$INPUT" \ -vf format=pix_fmts=yuv420p \ -map '0:v' \ - -codec:v vp8 -quality realtime -deadline 1000000 -cpu-used "$SPEED_VP8" \ - -b:v "$VBITRATE" -minrate "$VBITRATE" -maxrate "$VBITRATE" \ - -undershoot-pct 95 -bufsize $((6000*VBITRATE/1000)) -rc_init_occupancy $((4000*VBITRATE/1000)) \ - -max-intra-rate 0 \ - -qmin 4 -qmax 56 \ + $(encode_vp8 "$VBITRATE" "$SPEED_VP8") \ -f rtp -payload_type 100 "rtp://$IP:$((FIRSTPORT+2))?pkt_size=1200" diff --git a/bin/loop+encode+stream b/bin/loop+encode+stream index 3906552..5893ed3 100755 --- a/bin/loop+encode+stream +++ b/bin/loop+encode+stream @@ -55,6 +55,17 @@ elif [ $BITS -le 921600 ]; then # 720p → 921600 SPEED_VP8=15 fi +encode_opus() { + echo_n "-codec:a libopus -ac $ACHANNELS -ar $AFRAMERATE_OPUS -b:a $ABITRATE_OPUS" +} +encode_vp8() { bitrate=$1; speed=$2; + echo_n "-codec:v vp8 -quality realtime -deadline 1000000 -cpu-used $speed \ + -b:v $bitrate -minrate $bitrate -maxrate $bitrate \ + -undershoot-pct 95 -bufsize $((6000*bitrate/1000)) -rc_init_occupancy $((4000*bitrate/1000)) \ + -max-intra-rate 0 \ + -qmin 4 -qmax 56" +} + # based on http://www.webmproject.org/docs/encoder-parameters/#real-time-cbr-encoding-and-streaming # + Add 1s latency (deadline) # + Use same RTP payload types as GStreamer @@ -62,12 +73,8 @@ ffmpeg -hide_banner -threads auto -re \ -stream_loop -1 -i "$INPUT" \ -vf format=pix_fmts=yuv420p \ -map '0:a' \ - -codec:a libopus -ac "$ACHANNELS" -ar "$AFRAMERATE_OPUS" -b:a "$ABITRATE_OPUS" \ + $(encode_opus) \ -f rtp -payload_type 111 "rtp://$IP:$FIRSTPORT?pkt_size=1200" \ -map '0:v' \ - -codec:v vp8 -quality realtime -deadline 1000000 -cpu-used "$SPEED_VP8" \ - -b:v "$VBITRATE" -minrate "$VBITRATE" -maxrate "$VBITRATE" \ - -undershoot-pct 95 -bufsize $((6000*VBITRATE/1000)) -rc_init_occupancy $((4000*VBITRATE/1000)) \ - -max-intra-rate 0 \ - -qmin 4 -qmax 56 \ + $(encode_vp8 "$VBITRATE" "$SPEED_VP8") \ -f rtp -payload_type 100 "rtp://$IP:$((FIRSTPORT+2))?pkt_size=1200" @@ -178,6 +178,24 @@ filter_split_codec() { heights_webm=$1; heights_mpeg=$2; printf_each "[v%s]split=$codeccount$(printf_each '[v%swebm]' "$heights_webm")$(printf_each '[v%smpeg]' "$heights_mpeg")" "$HEIGHTS" } +encode_opus() { + echo_n "-codec:a libopus -ac $ACHANNELS -ar $AFRAMERATE_OPUS -b:a $ABITRATE_OPUS" +} +encode_aac() { + echo_n "-codec:a aac -strict experimental -ac $ACHANNELS -ar $AFRAMERATE_AAC -b:a $((ACHANNELS*ABITRATE_AAC))" +} +encode_vp8() { bitrate=$1; speed=$2; + echo_n "-codec:v vp8 -quality realtime -deadline 1000000 -cpu-used $speed \ + -b:v $bitrate -minrate $bitrate -maxrate $bitrate \ + -undershoot-pct 95 -bufsize $((6000*bitrate/1000)) -rc_init_occupancy $((4000*bitrate/1000)) \ + -max-intra-rate 0 \ + -qmin 4 -qmax 56" +} +encode_x264() { bitrate=$1; speed=$2; + echo_n "-codec:v libx264 -preset $speed -tune zerolatency \ + -maxrate $bitrate -bufsize $((bitrate*2)) -crf 23 \ + -force_key_frames 'expr:gte(t,n_forced*2)'" +} tee_rtp() { stream=$1; pt=$2; port=$3; echo_n "[select=\'$stream\':f=rtp:payload_type=$pt]rtp://$IP:$port?pkt_size=1200" } @@ -207,13 +225,9 @@ ffmpeg -hide_banner -threads auto \ ${HEIGHTS_WEBM:+\ ${HASAUDIO:+-map '0:a' }${HASVIDEO:+$(printf_each ' -map [v%swebm]' "$HEIGHTS_WEBM") } -shortest \ ${HASAUDIO:+\ - -codec:a libopus -ac "$ACHANNELS" -ar "$AFRAMERATE_OPUS" -b:a "$ABITRATE_OPUS" } \ + $(encode_opus) } \ ${HASVIDEO:+\ - -codec:v vp8 -quality realtime -deadline 1000000 -cpu-used "$SPEED_VP8" \ - -b:v "$VBITRATE" -minrate "$VBITRATE" -maxrate "$VBITRATE" \ - -undershoot-pct 95 -bufsize $((6000*VBITRATE/1000)) -rc_init_occupancy $((4000*VBITRATE/1000)) \ - -max-intra-rate 0 \ - -qmin 4 -qmax 56 } \ + $(encode_vp8 "$VBITRATE" "$SPEED_VP8") } \ -f tee \ "${HASAUDIO:+\ $(tee_rtp a 111 "$FIRSTPORT")|\ @@ -222,9 +236,7 @@ ffmpeg -hide_banner -threads auto \ ${HEIGHTS_MPEG:+\ ${HASAUDIO:+-map '0:a' }${HASVIDEO:+$(printf_each ' -map [v%smpeg]' "$HEIGHTS_MPEG") } -shortest \ ${HASAUDIO:+\ - -codec:a aac -strict experimental -ac "$ACHANNELS" -ar "$AFRAMERATE_AAC" -b:a $((ACHANNELS*ABITRATE_AAC)) } \ + $(encode_aac) } \ ${HASVIDEO:+\ - -codec:v libx264 -preset "$SPEED_X264" -tune zerolatency \ - -maxrate "$VBITRATE" -bufsize "$((VBITRATE*2))" -crf 23 } \ - -force_key_frames 'expr:gte(t,n_forced*2)' \ + $(encode_x264 "$VBITRATE" "$SPEED_X264") } \ -f rtp_mpegts rtp://$IP:10000 } |