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ffmpeg command not working from bash script but working from command line [duplicate]
6 octobre 2023, par SamTechI wrote a
bash
script that is generating command to encode video and create HLS playlist.

Here is the script. To make it short and clear, i fill variables with hard-coded values.


#!/bin/bash

# below variables are generated from some other script

basic="-hide_banner -y -i Sample.mp4 -profile:v main -crf 20 -sc_threshold 0 -g 50 -keyint_min 50 -hls_time 6"

renditions="-c:v:0 h264 -filter:v:0 scale=w=426:h=240:force_original_aspect_ratio=decrease -b:v:0 128k -maxrate:v:0 136k -bufsize:v:0 192k -c:v:1 h264 -filter:v:1 scale=w=640:h=360:force_original_aspect_ratio=decrease -b:v:1 256k -maxrate:v:1 273k -bufsize:v:1 384k -b:a 128k -c:a aac -ar 48000 -ac 2"

mapping="-map 0:v -map 0:v -map 0:a"
stream_map="-var_stream_map \"v:0,agroup:audio v:1,agroup:audio a:0,agroup:audio\""

hls="-hls_list_size 0 -f hls -hls_playlist_type vod -hls_segment_type mpegts -master_pl_name master.m3u8 -y %v_seg.m3u8"

# show final command
echo "Command:"
echo "ffmpeg ${basic} ${renditions} ${mapping} ${stream_map} ${hls}"

# execute command
ffmpeg ${basic} ${renditions} ${mapping} ${stream_map} ${hls}



Here is complete output from the script, along with the error it is giving.


[samtech@SAM tmp]$ ./hls-debug.sh 
Command:
ffmpeg -hide_banner -y -i Sample.mp4 -profile:v main -crf 20 -sc_threshold 0 -g 50 -keyint_min 50 -hls_time 10 -c:v:0 h264 -filter:v:0 scale=w=426:h=240:force_original_aspect_ratio=decrease -b:v:0 128k -maxrate:v:0 136k -bufsize:v:0 192k -c:v:1 h264 -filter:v:1 scale=w=640:h=360:force_original_aspect_ratio=decrease -b:v:1 256k -maxrate:v:1 273k -bufsize:v:1 384k -b:a 128k -c:a aac -ar 48000 -ac 2 -map 0:v -map 0:v -map 0:a -var_stream_map "v:0,agroup:audio v:1,agroup:audio a:0,agroup:audio" -hls_list_size 0 -f hls -hls_playlist_type vod -hls_segment_type mpegts -master_pl_name master.m3u8 -y %v_seg.m3u8
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x562fabc34480] Could not find codec parameters for stream 0 (Video: h264 (avc1 / 0x31637661), none, 640x480, 997 kb/s): unspecified pixel format
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Sample.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf60.3.100
 Duration: 00:00:31.00, start: 0.002000, bitrate: 1146 kb/s
 Stream #0:0[0x1](und): Video: h264 (avc1 / 0x31637661), none, 640x480, 997 kb/s, SAR 1:1 DAR 4:3, 25 fps, 25 tbr, 12800 tbn (default)
 Metadata:
 handler_name : VideoHandler
 vendor_id : [0][0][0][0]
 Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 383 kb/s (default)
 Metadata:
 handler_name : SoundHandler
 vendor_id : [0][0][0][0]
[NULL @ 0x562fabc69680] Unable to find a suitable output format for 'v:1,agroup:audio'
v:1,agroup:audio: Invalid argument



And here is output when i copy command and run in terminal


[samtech@SAM tmp]$ ffmpeg -hide_banner -y -i Sample.mp4 -profile:v main -crf 20 -sc_threshold 0 -g 50 -keyint_min 50 -hls_time 10 -c:v:0 h264 -filter:v:0 scale=w=426:h=240:force_original_aspect_ratio=decrease -b:v:0 128k -maxrate:v:0 136k -bufsize:v:0 192k -c:v:1 h264 -filter:v:1 scale=w=640:h=360:force_original_aspect_ratio=decrease -b:v:1 256k -maxrate:v:1 273k -bufsize:v:1 384k -b:a 128k -c:a aac -ar 48000 -ac 2 -map 0:v -map 0:v -map 0:a -var_stream_map "v:0,agroup:audio v:1,agroup:audio a:0,agroup:audio" -hls_list_size 0 -f hls -hls_playlist_type vod -hls_segment_type mpegts -master_pl_name master.m3u8 -y %v_seg.m3u8
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x55eeed0c7500] Could not find codec parameters for stream 0 (Video: h264 (avc1 / 0x31637661), none, 640x480, 997 kb/s): unspecified pixel format
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Sample.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf60.3.100
 Duration: 00:00:31.00, start: 0.002000, bitrate: 1146 kb/s
 Stream #0:0[0x1](und): Video: h264 (avc1 / 0x31637661), none, 640x480, 997 kb/s, SAR 1:1 DAR 4:3, 25 fps, 25 tbr, 12800 tbn (default)
 Metadata:
 handler_name : VideoHandler
 vendor_id : [0][0][0][0]
 Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 383 kb/s (default)
 Metadata:
 handler_name : SoundHandler
 vendor_id : [0][0][0][0]
Stream mapping:
 Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
 Stream #0:0 -> #0:1 (h264 (native) -> h264 (libx264))
 Stream #0:1 -> #0:2 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 0x55eeed0ff5c0] using SAR=1/1
[libx264 @ 0x55eeed0ff5c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x55eeed0ff5c0] profile Main, level 1.3, 4:2:0, 8-bit
[libx264 @ 0x55eeed0ff5c0] 264 - core 164 r3095 baee400 - H.264/MPEG-4 AVC codec - Copyleft 2003-2022 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=7 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=50 keyint_min=26 scenecut=0 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=20.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=136 vbv_bufsize=192 crf_max=0.0 nal_hrd=none filler=0 ip_ratio=1.40 aq=1:1.00
[libx264 @ 0x55eeed106f40] using SAR=1/1
[libx264 @ 0x55eeed106f40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x55eeed106f40] profile Main, level 2.1, 4:2:0, 8-bit
[libx264 @ 0x55eeed106f40] 264 - core 164 r3095 baee400 - H.264/MPEG-4 AVC codec - Copyleft 2003-2022 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=11 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=50 keyint_min=26 scenecut=0 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=20.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=273 vbv_bufsize=384 crf_max=0.0 nal_hrd=none filler=0 ip_ratio=1.40 aq=1:1.00
[mpegts @ 0x55eef094a180] frame size not set
Output #0, hls, to '%v_seg.m3u8':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf60.3.100
 Stream #0:0(und): Video: h264, yuv420p(tv, progressive), 320x240 [SAR 1:1 DAR 4:3], q=2-31, 128 kb/s, 25 fps, 90k tbn (default)
 Metadata:
 handler_name : VideoHandler
 vendor_id : [0][0][0][0]
 encoder : Lavc60.3.100 libx264
 Side data:
 cpb: bitrate max/min/avg: 136000/0/128000 buffer size: 192000 vbv_delay: N/A
 Stream #0:1(und): Video: h264, yuv420p(tv, progressive), 480x360 [SAR 1:1 DAR 4:3], q=2-31, 256 kb/s, 25 fps, 90k tbn (default)
 Metadata:
 handler_name : VideoHandler
 vendor_id : [0][0][0][0]
 encoder : Lavc60.3.100 libx264
 Side data:
 cpb: bitrate max/min/avg: 273000/0/256000 buffer size: 384000 vbv_delay: N/A
 Stream #0:2(und): Audio: aac (LC), 48000 Hz, stereo, fltp, 128 kb/s (default)
 Metadata:
 handler_name : SoundHandler
 vendor_id : [0][0][0][0]
 encoder : Lavc60.3.100 aac
[hls @ 0x55eeed0fc700] Opening '0_seg0.ts' for writing10.98 bitrate=N/A dup=370 drop=0 speed=11.2x 
[hls @ 0x55eeed0fc700] Opening '1_seg0.ts' for writing
[hls @ 0x55eeed0fc700] Opening '2_seg0.ts' for writing
[hls @ 0x55eeed0fc700] Opening '0_seg1.ts' for writing17.53 bitrate=N/A dup=370 drop=0 speed=11.8x 
[hls @ 0x55eeed0fc700] Opening '1_seg1.ts' for writing
[hls @ 0x55eeed0fc700] Opening '2_seg1.ts' for writing
[hls @ 0x55eeed0fc700] Opening '0_seg2.ts' for writing28.75 bitrate=N/A dup=370 drop=0 speed=11.6x 
[hls @ 0x55eeed0fc700] Opening '1_seg2.ts' for writing
[hls @ 0x55eeed0fc700] Opening '2_seg2.ts' for writing
[hls @ 0x55eeed0fc700] Opening '0_seg3.ts' for writing
[hls @ 0x55eeed0fc700] Opening '0_seg.m3u8' for writing
[hls @ 0x55eeed0fc700] Opening '1_seg3.ts' for writing
[hls @ 0x55eeed0fc700] Opening '1_seg.m3u8' for writing
[hls @ 0x55eeed0fc700] Opening '2_seg3.ts' for writing
[hls @ 0x55eeed0fc700] Opening '2_seg.m3u8' for writing
[hls @ 0x55eeed0fc700] Opening 'master.m3u8' for writing
frame= 775 fps=264 q=-1.0 Lq=-1.0 size=N/A time=00:00:30.97 bitrate=N/A dup=370 drop=0 speed=10.6x 
video:1227kB audio:489kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[libx264 @ 0x55eeed0ff5c0] frame I:16 Avg QP:17.53 size: 9672
[libx264 @ 0x55eeed0ff5c0] frame P:328 Avg QP:20.42 size: 690
[libx264 @ 0x55eeed0ff5c0] frame B:431 Avg QP:18.51 size: 125
[libx264 @ 0x55eeed0ff5c0] consecutive B-frames: 20.6% 13.2% 7.4% 58.8%
[libx264 @ 0x55eeed0ff5c0] mb I I16..4: 33.1% 0.0% 66.9%
[libx264 @ 0x55eeed0ff5c0] mb P I16..4: 0.8% 0.0% 2.4% P16..4: 15.3% 7.5% 4.3% 0.0% 0.0% skip:69.7%
[libx264 @ 0x55eeed0ff5c0] mb B I16..4: 0.1% 0.0% 0.0% B16..8: 10.8% 1.7% 0.4% direct: 0.4% skip:86.6% L0:40.4% L1:51.0% BI: 8.7%
[libx264 @ 0x55eeed0ff5c0] coded y,uvDC,uvAC intra: 70.8% 80.4% 61.6% inter: 3.8% 4.7% 0.5%
[libx264 @ 0x55eeed0ff5c0] i16 v,h,dc,p: 17% 39% 23% 21%
[libx264 @ 0x55eeed0ff5c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 15% 26% 18% 7% 7% 6% 7% 6% 7%
[libx264 @ 0x55eeed0ff5c0] i8c dc,h,v,p: 44% 31% 14% 11%
[libx264 @ 0x55eeed0ff5c0] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x55eeed0ff5c0] ref P L0: 73.7% 16.3% 7.4% 2.6%
[libx264 @ 0x55eeed0ff5c0] ref B L0: 94.3% 4.9% 0.9%
[libx264 @ 0x55eeed0ff5c0] ref B L1: 98.3% 1.7%
[libx264 @ 0x55eeed0ff5c0] kb/s:112.27
[libx264 @ 0x55eeed106f40] frame I:16 Avg QP:15.14 size: 18394
[libx264 @ 0x55eeed106f40] frame P:260 Avg QP:19.00 size: 1507
[libx264 @ 0x55eeed106f40] frame B:499 Avg QP:18.80 size: 269
[libx264 @ 0x55eeed106f40] consecutive B-frames: 9.7% 11.4% 6.2% 72.8%
[libx264 @ 0x55eeed106f40] mb I I16..4: 36.5% 0.0% 63.5%
[libx264 @ 0x55eeed106f40] mb P I16..4: 1.2% 0.0% 3.1% P16..4: 15.5% 7.1% 3.2% 0.0% 0.0% skip:69.9%
[libx264 @ 0x55eeed106f40] mb B I16..4: 0.1% 0.0% 0.1% B16..8: 11.4% 1.6% 0.3% direct: 0.4% skip:86.2% L0:39.1% L1:53.5% BI: 7.4%
[libx264 @ 0x55eeed106f40] coded y,uvDC,uvAC intra: 65.1% 75.8% 54.1% inter: 3.1% 4.5% 0.3%
[libx264 @ 0x55eeed106f40] i16 v,h,dc,p: 35% 27% 12% 26%
[libx264 @ 0x55eeed106f40] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 18% 25% 15% 7% 8% 7% 8% 6% 6%
[libx264 @ 0x55eeed106f40] i8c dc,h,v,p: 46% 29% 14% 11%
[libx264 @ 0x55eeed106f40] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x55eeed106f40] ref P L0: 71.6% 15.9% 8.6% 3.9%
[libx264 @ 0x55eeed106f40] ref B L0: 93.9% 4.6% 1.5%
[libx264 @ 0x55eeed106f40] ref B L1: 98.3% 1.7%
[libx264 @ 0x55eeed106f40] kb/s:211.68
[aac @ 0x55eeed1009c0] Qavg: 401.380



What the wrong is going with that script ?


I am pulling my hairs from last few hours because of it, anyone help please.


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