https://superuser.com/questions/996243/ffmpeg-convert-image-to-video-displays-only-black orijinal soru, soruyu misafir olarak gönderdim ve düzenlemeyi koyamıyorum. yeni bir tane yarattı
Benim android app ffmpeg komutları kullanmak için ffmpeg4android kullanıyorum. Tek bir görüntü dosyasını 30 saniyelik bir videoya dönüştürmek için bu komutu kullanıyorum:
ffmpeg -y -r 1/30 -i /storage/emulated/0/DCIM/image.jpeg -strict experimental -pix_fmt yuv420p /data/data/com.example/files/output.avi
Ancak, çıktı yalnızca siyah bir ekran görüntüleyen 30 saniye uzunluğunda bir videodur.
Komutta bir sorun mu var? Cevap aramaya çalıştım ama çoğu -pix_fmt yuv420p eklediklerini söyledi.
EDIT: burada log btw
ffmpeg version N-69972-g6c91afe Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 4.4.3 (GCC)
ffmpeg4android 2.5_23
libavutil 54. 19.100 / 54. 19.100
libavcodec 56. 25.100 / 56. 25.100
libavformat 56. 23.100 / 56. 23.100
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 11.100 / 5. 11.100
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Splitting the commandline.
Reading option '-y' ... matched as option 'y' (overwrite output files) with argument '1'.
Reading option '-r' ... matched as option 'r' (set frame rate (Hz value, fraction or abbreviation)) with argument '1/30'.
Reading option '-i' ... matched as input file with argument '/storage/emulated/0/DCIM/image.jpeg'.
Reading option '-strict' ...Routing option strict to both codec and muxer layer
matched as AVOption 'strict' with argument 'experimental'.
Reading option '-pix_fmt' ... matched as option 'pix_fmt' (set pixel format) with argument 'yuv420p'.
Reading option '/data/data/com.example/files/output.avi.avi' ... matched as output file.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option y (overwrite output files) with argument 1.
Successfully parsed a group of options.
Parsing a group of options: input file /storage/emulated/0/DCIM/image.jpeg.
Applying option r (set frame rate (Hz value, fraction or abbreviation)) with argument 1/30.
Successfully parsed a group of options.
Opening an input file: /storage/emulated/0/DCIM/image.jpeg.
Format image2 probed with size=2048 and score=50
Before avformat_find_stream_info() pos: 0 bytes read:32768 seeks:0
Statistics: 78662 bytes read, 0 seeks
marker=d8 avail_size_in_buf=78660
marker parser used 0 bytes (0 bits)
marker=e0 avail_size_in_buf=78658
marker parser used 16 bytes (128 bits)
marker=e2 avail_size_in_buf=78640
marker parser used 539 bytes (4312 bits)
marker=db avail_size_in_buf=78098
index=0
qscale[0]: 4
marker parser used 67 bytes (536 bits)
marker=db avail_size_in_buf=78029
index=1
qscale[1]: 7
marker parser used 67 bytes (536 bits)
marker=c2 avail_size_in_buf=77960
sof0: picture: 960x645
component 0 2:2 id: -1 quant:0
component 1 1:1 id: 0 quant:1
component 2 1:1 id: 1 quant:1
pix fmt id 22111100
marker parser used 17 bytes (136 bits)
marker=c4 avail_size_in_buf=77941
class=0 index=0 nb_codes=8
marker parser used 27 bytes (216 bits)
marker=c4 avail_size_in_buf=77912
class=0 index=1 nb_codes=6
marker parser used 25 bytes (200 bits)
marker=c4 avail_size_in_buf=77885
class=0 index=1 nb_codes=6
marker parser used 25 bytes (200 bits)
escaping removed 70674 bytes
marker=da avail_size_in_buf=77858
component: -1
component: 0
component: 1
marker parser used 7183 bytes (57461 bits)
marker=c4 avail_size_in_buf=70666
class=1 index=0 nb_codes=97
marker parser used 49 bytes (392 bits)
escaping removed 62231 bytes
marker=da avail_size_in_buf=70615
component: -1
marker parser used 8383 bytes (67059 bits)
marker=c4 avail_size_in_buf=62215
class=1 index=1 nb_codes=146
marker parser used 43 bytes (344 bits)
escaping removed 61457 bytes
marker=da avail_size_in_buf=62170
component: 1
marker parser used 712 bytes (5692 bits)
marker=c4 avail_size_in_buf=61454
class=1 index=1 nb_codes=129
marker parser used 41 bytes (328 bits)
escaping removed 60607 bytes
marker=da avail_size_in_buf=61411
component: 0
marker parser used 803 bytes (6418 bits)
marker=c4 avail_size_in_buf=60603
class=1 index=0 nb_codes=242
marker parser used 62 bytes (496 bits)
escaping removed 54202 bytes
marker=da avail_size_in_buf=60539
component: -1
marker parser used 6336 bytes (50684 bits)
marker=c4 avail_size_in_buf=54184
class=1 index=0 nb_codes=242
marker parser used 43 bytes (344 bits)
escaping removed 40886 bytes
marker=da avail_size_in_buf=54139
component: -1
marker parser used 13252 bytes (106011 bits)
escaping removed 39000 bytes
marker=da avail_size_in_buf=40858
component: -1
component: 0
component: 1
marker parser used 1857 bytes (14856 bits)
marker=c4 avail_size_in_buf=38992
class=1 index=1 nb_codes=241
marker parser used 39 bytes (312 bits)
escaping removed 37662 bytes
marker=da avail_size_in_buf=38951
component: 1
marker parser used 1288 bytes (10301 bits)
marker=c4 avail_size_in_buf=37659
class=1 index=1 nb_codes=178
marker parser used 36 bytes (288 bits)
escaping removed 36349 bytes
marker=da avail_size_in_buf=37621
component: 0
marker parser used 1271 bytes (10161 bits)
marker=c4 avail_size_in_buf=36343
class=1 index=0 nb_codes=242
marker parser used 43 bytes (344 bits)
escaping removed 161 bytes
marker=da avail_size_in_buf=36298
component: -1
marker parser used 36136 bytes (289085 bits)
marker=d9 avail_size_in_buf=0
decode frame unused 0 bytes
After avformat_find_stream_info() pos: 0 bytes read:32768 seeks:0 frames:1
Input #0, image2, from '/storage/emulated/0/DCIM/image.jpeg':
Duration: 00:00:00.04, start: 0.000000, bitrate: 15732 kb/s
Stream #0:0, 1, 1/25: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 960x645 [SAR 1:1 DAR 64:43], 25 tbr, 25 tbn, 25 tbc
Successfully opened the file.
Parsing a group of options: output file /data/data/com.example/files/output.avi.avi.
Applying option pix_fmt (set pixel format) with argument yuv420p.
Successfully parsed a group of options.
Opening an output file: /data/data/com.example/files/output.avi.avi.
Successfully opened the file.
detected 4 logical cores
Setting 'video_size' to value '960x645'
Setting 'pix_fmt' to value '12'
Setting 'time_base' to value '30/1'
Setting 'pixel_aspect' to value '1/1'
Setting 'sws_param' to value 'flags=2'
Setting 'frame_rate' to value '1/30'
w:960 h:645 pixfmt:yuvj420p tb:30/1 fr:1/30 sar:1/1 sws_param:flags=2
Setting 'expr' to value 'N'
compat: called with args=[yuv420p]
Setting 'pix_fmts' to value 'yuv420p'
Setting 'flags' to value '0x4'
w:iw h:ih flags:'0x4' interl:0
auto-inserting filter 'auto-inserted scaler 0' between the filter 'Parsed_null_0' and the filter 'format'
query_formats: 5 queried, 3 merged, 1 already done, 0 delayed
TB:30.000000 FRAME_RATE:0.033333 SAMPLE_RATE:nan
deprecated pixel format used, make sure you did set range correctly
w:960 h:645 fmt:yuvj420p sar:1/1 -> w:960 h:645 fmt:yuv420p sar:1/1 flags:0x4
bitrate tolerance 4000000 too small for bitrate 200000, overriding
intra_quant_bias = 0 inter_quant_bias = -64
Output #0, avi, to '/data/data/com.example/files/output.avi.avi':
Metadata:
ISFT : Lavf56.23.100
Stream #0:0, 0, 30/1: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 960x645 [SAR 1:1 DAR 64:43], q=2-31, 200 kb/s, 0.03 fps, 0.03 tbn, 0.03 tbc
Metadata:
encoder : Lavc56.25.100 mpeg4
Stream mapping:
Stream #0:0 -> #0:0 (mjpeg (native) -> mpeg4 (native))
Press [q] to stop, [?] for help
marker=d8 avail_size_in_buf=78660
marker parser used 0 bytes (0 bits)
marker=e0 avail_size_in_buf=78658
marker parser used 16 bytes (128 bits)
marker=e2 avail_size_in_buf=78640
marker parser used 539 bytes (4312 bits)
marker=db avail_size_in_buf=78098
index=0
qscale[0]: 4
marker parser used 67 bytes (536 bits)
marker=db avail_size_in_buf=78029
index=1
qscale[1]: 7
marker parser used 67 bytes (536 bits)
marker=c2 avail_size_in_buf=77960
sof0: picture: 960x645
component 0 2:2 id: -1 quant:0
component 1 1:1 id: 0 quant:1
component 2 1:1 id: 1 quant:1
pix fmt id 22111100
marker parser used 17 bytes (136 bits)
marker=c4 avail_size_in_buf=77941
class=0 index=0 nb_codes=8
marker parser used 27 bytes (216 bits)
marker=c4 avail_size_in_buf=77912
class=0 index=1 nb_codes=6
marker parser used 25 bytes (200 bits)
marker=c4 avail_size_in_buf=77885
class=0 index=1 nb_codes=6
marker parser used 25 bytes (200 bits)
escaping removed 70674 bytes
marker=da avail_size_in_buf=77858
component: -1
component: 0
component: 1
marker parser used 7183 bytes (57461 bits)
marker=c4 avail_size_in_buf=70666
class=1 index=0 nb_codes=97
marker parser used 49 bytes (392 bits)
escaping removed 62231 bytes
marker=da avail_size_in_buf=70615
component: -1
marker parser used 8383 bytes (67059 bits)
marker=c4 avail_size_in_buf=62215
class=1 index=1 nb_codes=146
marker parser used 43 bytes (344 bits)
escaping removed 61457 bytes
marker=da avail_size_in_buf=62170
component: 1
marker parser used 712 bytes (5692 bits)
marker=c4 avail_size_in_buf=61454
class=1 index=1 nb_codes=129
marker parser used 41 bytes (328 bits)
escaping removed 60607 bytes
marker=da avail_size_in_buf=61411
component: 0
marker parser used 803 bytes (6418 bits)
marker=c4 avail_size_in_buf=60603
class=1 index=0 nb_codes=242
marker parser used 62 bytes (496 bits)
escaping removed 54202 bytes
marker=da avail_size_in_buf=60539
component: -1
marker parser used 6336 bytes (50684 bits)
marker=c4 avail_size_in_buf=54184
class=1 index=0 nb_codes=242
marker parser used 43 bytes (344 bits)
escaping removed 40886 bytes
marker=da avail_size_in_buf=54139
component: -1
marker parser used 13252 bytes (106011 bits)
escaping removed 39000 bytes
marker=da avail_size_in_buf=40858
component: -1
component: 0
component: 1
marker parser used 1857 bytes (14856 bits)
marker=c4 avail_size_in_buf=38992
class=1 index=1 nb_codes=241
marker parser used 39 bytes (312 bits)
escaping removed 37662 bytes
marker=da avail_size_in_buf=38951
component: 1
marker parser used 1288 bytes (10301 bits)
marker=c4 avail_size_in_buf=37659
class=1 index=1 nb_codes=178
marker parser used 36 bytes (288 bits)
escaping removed 36349 bytes
marker=da avail_size_in_buf=37621
component: 0
marker parser used 1271 bytes (10161 bits)
marker=c4 avail_size_in_buf=36343
class=1 index=0 nb_codes=242
marker parser used 43 bytes (344 bits)
escaping removed 161 bytes
marker=da avail_size_in_buf=36298
component: -1
marker parser used 36136 bytes (289085 bits)
marker=d9 avail_size_in_buf=0
decode frame unused 0 bytes
Cliping frame in rate conversion by 0.000008
EOF on sink link output stream 0:0:default.
No more output streams to write to, finishing.
frame= 1 fps=0.0 q=7.8 Lsize= 53kB time=00:00:30.00 bitrate= 14.6kbits/s
video:48kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 11.839626%
Input file #0 (/storage/emulated/0/DCIM/image.jpeg):
Input stream #0:0 (video): 1 packets read (78662 bytes); 1 frames decoded;
Total: 1 packets (78662 bytes) demuxed
Output file #0 (/data/data/com.example/files/output.avi.avi):
Output stream #0:0 (video): 1 frames encoded; 1 packets muxed (48836 bytes);
Total: 1 packets (48836 bytes) muxed
1 frames successfully decoded, 0 decoding errors
ffmpeg4android: 0