আমি একটি ভিডিও তৈরি করতে ffmpeg ব্যবহার করছি। উত্সটি পিএনজি চিত্রগুলির একটি সেট (প্রতিটি ফ্রেম প্রতি) এবং একটি এমপি 3 ফাইল। আমি শব্দ সহ একটি এমপি 4 তৈরি করতে চাই।
আমি আপাতত দুটি পর্যায়ে এটি করছি। প্রথম ধাপটি পিএনজিকে এমপিথেকে রূপান্তর করে:
%d%\ffmpeg -r 25 -i png\%1-%%06d.png -s 1280x720 -c:v libx264 -pix_fmt yuv420p -b:v 500k -profile:v baseline -movflags faststart temp.mp4
পদক্ষেপ দুটি শব্দ এবং অস্থায়ী এমপি 4গুলিকে মার্জ করে:
%d%\ffmpeg -i temp.mp4 -i %1\%1.mp3 %1.mp4
এটি কাজ করে তবে শব্দটি খুব খারাপ। আমি মনে করি এটি আ্যাক-তে এমপি 3 করছে।
সুতরাং আমি এটি চেষ্টা করেছি:
%d%\ffmpeg -i temp.mp4 -i %1\%1.mp3 -c copy -map 0:0 -map 1:0 %1.mp4
আমি কোন শব্দ পাই না। আমি অন্যান্য অনেকগুলি বিকল্প, বিভিন্ন কোডেক, অন্য অডিও প্যারামিটারগুলি চেষ্টা করে দেখেছি, কিন্তু আমি কোনও শব্দ পাই না।
শব্দ পাওয়ার একমাত্র উপায়টি ডিফল্টরূপে অডিও ছেড়ে যাওয়া বলে মনে হয় এবং এটি খুব খারাপ মানের।
এখানে সম্পাদনা আউটপুট
C:\ffmpeg\bin\ffmpeg -r 25 -i png\scene2-%06d.png -s 1280x720 -c:v libx264 -pix_fmt yuv420p
-b:v 500k -profile:v baseline -movflags faststart temp.mp4
ffmpeg version N-57057-g024bf3a Copyright (c) 2000-2013 the FFmpeg developers
built on Oct 11 2013 18:01:59 with gcc 4.8.1 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetyp
e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena
ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l
ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp
eex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aa
cenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavp
ack --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
libavutil 52. 46.101 / 52. 46.101
libavcodec 55. 35.100 / 55. 35.100
libavformat 55. 19.100 / 55. 19.100
libavdevice 55. 4.100 / 55. 4.100
libavfilter 3. 88.101 / 3. 88.101
libswscale 2. 5.101 / 2. 5.101
libswresample 0. 17.103 / 0. 17.103
libpostproc 52. 3.100 / 52. 3.100
Input #0, image2, from 'png\scene2-%06d.png':
Duration: 00:00:13.00, start: 0.000000, bitrate: N/A
Stream #0:0: Video: png, rgba, 1280x720 [SAR 3779:3779 DAR 16:9], 25 fps, 25
tbr, 25 tbn, 25 tbc
[libx264 @ 003f36a0] using SAR=1/1
[libx264 @ 003f36a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64
[libx264 @ 003f36a0] profile Constrained Baseline, level 3.1
[libx264 @ 003f36a0] 264 - core 138 r2358 9e941d1 - H.264/MPEG-4 AVC codec - Cop
yleft 2003-2013 - http://www.videolan.org/x264.html - options: cabac=0 ref=3 deb
lock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 m
e_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chro
ma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 i
nterlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 k
eyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate
=500 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'temp.mp4':
Metadata:
encoder : Lavf55.19.100
Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1280x7
20 [SAR 1:1 DAR 16:9], q=-1--1, 500 kb/s, 12800 tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (png -> libx264)
Press [q] to stop, [?] for help
frame= 57 fps= 56 q=35.0 size= 16kB time=00:00:00.40 bitrate= 320.3kbits/
frame= 84 fps= 55 q=26.0 size= 39kB time=00:00:01.48 bitrate= 214.0kbits/
frame= 113 fps= 56 q=19.0 size= 60kB time=00:00:02.64 bitrate= 186.0kbits/
frame= 141 fps= 55 q=21.0 size= 152kB time=00:00:03.76 bitrate= 332.0kbits/
frame= 167 fps= 55 q=24.0 size= 268kB time=00:00:04.80 bitrate= 457.8kbits/
frame= 190 fps= 53 q=25.0 size= 353kB time=00:00:05.72 bitrate= 506.2kbits/
frame= 213 fps= 52 q=26.0 size= 412kB time=00:00:06.64 bitrate= 508.0kbits/
frame= 238 fps= 52 q=23.0 size= 419kB time=00:00:07.64 bitrate= 449.1kbits/
frame= 262 fps= 51 q=22.0 size= 454kB time=00:00:08.60 bitrate= 432.5kbits/
frame= 286 fps= 51 q=22.0 size= 523kB time=00:00:09.56 bitrate= 448.1kbits/
frame= 309 fps= 50 q=25.0 size= 660kB time=00:00:10.48 bitrate= 515.8kbits/
[mp4 @ 003f3160] Starting second pass: moving the moov atom to the beginning of
the file
frame= 325 fps= 47 q=-1.0 Lsize= 794kB time=00:00:13.00 bitrate= 500.5kbits
/s
video:792kB audio:0kB subtitle:0 global headers:0kB muxing overhead 0.256995%
[libx264 @ 003f36a0] frame I:2 Avg QP:13.55 size: 24853
[libx264 @ 003f36a0] frame P:323 Avg QP:15.10 size: 2356
[libx264 @ 003f36a0] mb I I16..4: 91.3% 0.0% 8.8%
[libx264 @ 003f36a0] mb P I16..4: 1.5% 0.0% 0.2% P16..4: 2.4% 1.0% 0.4%
0.0% 0.0% skip:94.5%
[libx264 @ 003f36a0] final ratefactor: 19.04
[libx264 @ 003f36a0] coded y,uvDC,uvAC intra: 6.3% 15.8% 12.8% inter: 1.3% 2.5%
1.4%
[libx264 @ 003f36a0] i16 v,h,dc,p: 82% 17% 2% 0%
[libx264 @ 003f36a0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 39% 18% 25% 3% 3% 4% 3%
2% 3%
[libx264 @ 003f36a0] i8c dc,h,v,p: 69% 23% 8% 1%
[libx264 @ 003f36a0] ref P L0: 75.5% 14.7% 9.8%
[libx264 @ 003f36a0] kb/s:498.84
C:\ffmpeg\bin\ffmpeg -i temp.mp4 -i scene2\scene2.mp3 -c copy -map 0:0 -map 1:0 scene2.mp4
ffmpeg version N-57057-g024bf3a Copyright (c) 2000-2013 the FFmpeg developers
built on Oct 11 2013 18:01:59 with gcc 4.8.1 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetyp
e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena
ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l
ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp
eex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aa
cenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavp
ack --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
libavutil 52. 46.101 / 52. 46.101
libavcodec 55. 35.100 / 55. 35.100
libavformat 55. 19.100 / 55. 19.100
libavdevice 55. 4.100 / 55. 4.100
libavfilter 3. 88.101 / 3. 88.101
libswscale 2. 5.101 / 2. 5.101
libswresample 0. 17.103 / 0. 17.103
libpostproc 52. 3.100 / 52. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'temp.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf55.19.100
Duration: 00:00:13.00, start: 0.000000, bitrate: 500 kb/s
Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yu
v420p, 1280x720 [SAR 1:1 DAR 16:9], 499 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
(default)
Metadata:
handler_name : VideoHandler
Input #1, mp3, from 'scene2\scene2.mp3':
Metadata:
genre : Blues
Duration: 00:00:09.86, start: 0.000000, bitrate: 128 kb/s
Stream #1:0: Audio: mp3, 16000 Hz, mono, s16p, 128 kb/s
Output #0, mp4, to 'scene2.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf55.19.100
Stream #0:0(und): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1280x720 [S
AR 1:1 DAR 16:9], q=2-31, 499 kb/s, 25 fps, 12800 tbn, 12800 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1: Audio: mp3 (i[0][0][0] / 0x0069), 16000 Hz, mono, 128 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #1:0 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame= 325 fps=0.0 q=-1.0 Lsize= 951kB time=00:00:12.96 bitrate= 601.4kbits
/s
video:792kB audio:154kB subtitle:0 global headers:0kB muxing overhead 0.540095%
ইডিআইটি -i দৃশ্য 2.mp4 এর জন্য আউটপুট যুক্ত করেছে
C:\ffmpeg\bin\ffmpeg -i scene2.mp4
ffmpeg version N-57057-g024bf3a Copyright (c) 2000-2013 the FFmpeg developers
built on Oct 11 2013 18:01:59 with gcc 4.8.1 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetyp
e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena
ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l
ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp
eex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aa
cenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavp
ack --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
libavutil 52. 46.101 / 52. 46.101
libavcodec 55. 35.100 / 55. 35.100
libavformat 55. 19.100 / 55. 19.100
libavdevice 55. 4.100 / 55. 4.100
libavfilter 3. 88.101 / 3. 88.101
libswscale 2. 5.101 / 2. 5.101
libswresample 0. 17.103 / 0. 17.103
libpostproc 52. 3.100 / 52. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'scene2.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf55.19.100
Duration: 00:00:13.00, start: 0.000000, bitrate: 599 kb/s
Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yu
v420p, 1280x720 [SAR 1:1 DAR 16:9], 499 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
(default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 16000 Hz, mono, s16p, 128
kb/s (default)
Metadata:
handler_name : SoundHandler
At least one output file must be specified