我几乎 99% 确定这是一个特别无用的问题。如您所见，编解码器信息和它们是相同的。左侧的信息不起作用，当与 whatsapp 共享时，右侧的版本起作用。它们来自同一个父文件，据我所知，是用同一个脚本制作的。但脚本中添加了一些选项，脚本的输出是：
ffmpeg -i some.mp4 -s 1980x1080 -c:a copy sd.mp4
这里的最终目的是创建不大于 64mb 的文件，然后能够与朋友分享。
这是一张毫无用处的图片，展示了 whatsapp 中的“broken.mp4”文件的样子：
破碎的
General
Count : 331
Count of stream of this kind : 1
Kind of stream : General
Kind of stream : General
Stream identifier : 0
Count of video streams : 1
Count of audio streams : 1
OtherCount : 1
Video_Format_List : AVC
Video_Format_WithHint_List : AVC
Codecs Video : AVC
Video_Language_List : English
Audio_Format_List : AAC LC
Audio_Format_WithHint_List : AAC LC
Audio codecs : AAC LC
Audio_Language_List : English
Other_Format_List : QuickTime TC
Other_Format_WithHint_List : QuickTime TC
Other_Codec_List : QuickTime TC
Other_Language_List : English
Complete name : broken.mp4
File name extension : broken.mp4
File name : broken
File extension : mp4
Format : MPEG-4
Format : MPEG-4
Format/Extensions usually used : braw mov mp4 m4v m4a m4b m4p m4r 3ga 3gpa 3gpp 3gp 3gpp2 3g2 k3g jpm jpx mqv ismv isma ismt f4a f4b f4v
Commercial name : MPEG-4
Format profile : Base Media
Internet media type : video/mp4
Codec ID : isom
Codec ID : isom (isom/iso2/avc1/mp41)
Codec ID/Url : http://www.apple.com/quicktime/download/standalone.html
CodecID_Compatible : isom/iso2/avc1/mp41
File size : 24580128
File size : 23.4 MiB
File size : 23 MiB
File size : 23 MiB
File size : 23.4 MiB
File size : 23.44 MiB
Duration : 20571
Duration : 20 s 571 ms
Duration : 20 s 571 ms
Duration : 20 s 571 ms
Duration : 00:00:20.571
Duration : 00:00:20:33
Duration : 00:00:20.571 (00:00:20:33)
Overall bit rate : 9559138
Overall bit rate : 9 559 kb/s
Frame rate : 59.940
Frame rate : 59.940 FPS
Frame count : 1233
Stream size : 34626
Stream size : 33.8 KiB (0%)
Stream size : 34 KiB
Stream size : 34 KiB
Stream size : 33.8 KiB
Stream size : 33.81 KiB
Stream size : 33.8 KiB (0%)
Proportion of this stream : 0.00141
HeaderSize : 40
DataSize : 24545514
FooterSize : 34574
IsStreamable : No
File last modification date : UTC 2022-04-25 21:12:20
File last modification date (local) : 2022-04-25 22:12:20
Writing application : Lavf58.29.100
Writing application : Lavf58.29.100
Video
Count : 378
Count of stream of this kind : 1
Kind of stream : Video
Kind of stream : Video
Stream identifier : 0
StreamOrder : 0
ID : 1
ID : 1
Format : AVC
Format : AVC
Format/Info : Advanced Video Codec
Format/Url : http://developers.videolan.org/x264.html
Commercial name : AVC
Format profile : [email protected]
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, CABAC : Yes
Format settings, Reference frames : 4
Format settings, Reference frames : 4 frames
Internet media type : video/H264
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 20571
Duration : 20 s 571 ms
Duration : 20 s 571 ms
Duration : 20 s 571 ms
Duration : 00:00:20.571
Duration : 00:00:20:33
Duration : 00:00:20.571 (00:00:20:33)
Bit rate : 9356655
Bit rate : 9 357 kb/s
Width : 1980
Width : 1 980 pixels
Height : 1080
Height : 1 080 pixels
Stored_Width : 1984
Stored_Height : 1088
Sampled_Width : 1980
Sampled_Height : 1080
Pixel aspect ratio : 0.970
Display aspect ratio : 1.778
Display aspect ratio : 16:9
Rotation : 0.000
Frame rate mode : CFR
Frame rate mode : Constant
FrameRate_Mode_Original : VFR
Frame rate : 59.940
Frame rate : 59.940 (60000/1001) FPS
FrameRate_Num : 60000
FrameRate_Den : 1001
Frame count : 1233
Color space : YUV
Chroma subsampling : 4:2:0
Chroma subsampling : 4:2:0
Bit depth : 8
Bit depth : 8 bits
Scan type : Progressive
Scan type : Progressive
Bits/(Pixel*Frame) : 0.073
Delay : 48786850
Delay : 13 h 33 min
Delay : 13 h 33 min 6 s 850 ms
Delay : 13 h 33 min
Delay : 13:33:06.850
Delay_Settings : DropFrame=No / 24HourMax=No / IsVisual=No
Delay_DropFrame : No
Delay, origin : Container
Delay, origin : Container
Stream size : 24058967
Stream size : 22.9 MiB (98%)
Stream size : 23 MiB
Stream size : 23 MiB
Stream size : 22.9 MiB
Stream size : 22.94 MiB
Stream size : 22.9 MiB (98%)
Proportion of this stream : 0.97880
Title : GoPro H.265
Writing library : x264 - core 155 r2917 0a84d98
Writing library : x264 core 155 r2917 0a84d98
Encoded_Library_Name : x264
Encoded_Library_Version : core 155 r2917 0a84d98
Encoding settings : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=34 / lookahead_threads=5 / 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=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=crf / mbtree=1 / crf=23.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Language : en
Language : English
Language : English
Language : en
Language : eng
Language : en
Color range : Full
colour_range_Source : Stream
Codec configuration box : avcC
Audio
Count : 280
Count of stream of this kind : 1
Kind of stream : Audio
Kind of stream : Audio
Stream identifier : 0
StreamOrder : 1
ID : 2
ID : 2
Format : AAC
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Commercial name : AAC
Format_AdditionalFeatures : LC
Codec ID : mp4a-40-2
Duration : 20566
Duration : 20 s 566 ms
Duration : 20 s 566 ms
Duration : 20 s 566 ms
Duration : 00:00:20.566
Duration : 00:00:20:24
Duration : 00:00:20.566 (00:00:20:24)
Bit rate mode : CBR
Bit rate mode : Constant
Bit rate : 192000
Bit rate : 192 kb/s
Channel(s) : 2
Channel(s) : 2 channels
Channel positions : Front: L R
Channel positions : 2/0/0
Channel layout : L R
Samples per frame : 1024
Sampling rate : 48000
Sampling rate : 48.0 kHz
Samples count : 987168
Frame rate : 46.875
Frame rate : 46.875 FPS (1024 SPF)
Frame count : 964
Compression mode : Lossy
Compression mode : Lossy
Delay : 48786850
Delay : 13 h 33 min
Delay : 13 h 33 min 6 s 850 ms
Delay : 13 h 33 min
Delay : 13:33:06.850
Delay_DropFrame : No
Delay, origin : Container
Delay, origin : Container
Delay relative to video : 0
Delay relative to video : 00:00:00.000
Stream size : 486535
Stream size : 475 KiB (2%)
Stream size : 475 KiB
Stream size : 475 KiB
Stream size : 475 KiB
Stream size : 475.1 KiB
Stream size : 475 KiB (2%)
Proportion of this stream : 0.01979
Title : GoPro AAC
Language : en
Language : English
Language : English
Language : en
Language : eng
Language : en
Default : Yes
Default : Yes
Alternate group : 1
Alternate group : 1
在职的
General
Count : 331
Count of stream of this kind : 1
Kind of stream : General
Kind of stream : General
Stream identifier : 0
Count of video streams : 1
Count of audio streams : 1
OtherCount : 1
Video_Format_List : AVC
Video_Format_WithHint_List : AVC
Codecs Video : AVC
Video_Language_List : English
Audio_Format_List : AAC LC
Audio_Format_WithHint_List : AAC LC
Audio codecs : AAC LC
Audio_Language_List : English
Other_Format_List : QuickTime TC
Other_Format_WithHint_List : QuickTime TC
Other_Codec_List : QuickTime TC
Other_Language_List : English
Complete name : working.mp4
File name extension : working.mp4
File name : working
File extension : mp4
Format : MPEG-4
Format : MPEG-4
Format/Extensions usually used : braw mov mp4 m4v m4a m4b m4p m4r 3ga 3gpa 3gpp 3gp 3gpp2 3g2 k3g jpm jpx mqv ismv isma ismt f4a f4b f4v
Commercial name : MPEG-4
Format profile : Base Media
Internet media type : video/mp4
Codec ID : isom
Codec ID : isom (isom/iso2/avc1/mp41)
Codec ID/Url : http://www.apple.com/quicktime/download/standalone.html
CodecID_Compatible : isom/iso2/avc1/mp41
File size : 29826297
File size : 28.4 MiB
File size : 28 MiB
File size : 28 MiB
File size : 28.4 MiB
File size : 28.44 MiB
Duration : 20571
Duration : 20 s 571 ms
Duration : 20 s 571 ms
Duration : 20 s 571 ms
Duration : 00:00:20.571
Duration : 00:00:20:33
Duration : 00:00:20.571 (00:00:20:33)
Overall bit rate : 11599357
Overall bit rate : 11.6 Mb/s
Frame rate : 59.940
Frame rate : 59.940 FPS
Frame count : 1233
Stream size : 34626
Stream size : 33.8 KiB (0%)
Stream size : 34 KiB
Stream size : 34 KiB
Stream size : 33.8 KiB
Stream size : 33.81 KiB
Stream size : 33.8 KiB (0%)
Proportion of this stream : 0.00116
HeaderSize : 40
DataSize : 29791683
FooterSize : 34574
IsStreamable : No
File last modification date : UTC 2021-10-24 18:15:02
File last modification date (local) : 2021-10-24 19:15:02
Writing application : Lavf58.29.100
Writing application : Lavf58.29.100
Video
Count : 378
Count of stream of this kind : 1
Kind of stream : Video
Kind of stream : Video
Stream identifier : 0
StreamOrder : 0
ID : 1
ID : 1
Format : AVC
Format : AVC
Format/Info : Advanced Video Codec
Format/Url : http://developers.videolan.org/x264.html
Commercial name : AVC
Format profile : [email protected]
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, CABAC : Yes
Format settings, Reference frames : 4
Format settings, Reference frames : 4 frames
Internet media type : video/H264
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 20571
Duration : 20 s 571 ms
Duration : 20 s 571 ms
Duration : 20 s 571 ms
Duration : 00:00:20.571
Duration : 00:00:20:33
Duration : 00:00:20.571 (00:00:20:33)
Bit rate : 11396917
Bit rate : 11.4 Mb/s
Width : 1980
Width : 1 980 pixels
Height : 1080
Height : 1 080 pixels
Stored_Width : 1984
Stored_Height : 1088
Sampled_Width : 1980
Sampled_Height : 1080
Pixel aspect ratio : 0.970
Display aspect ratio : 1.778
Display aspect ratio : 16:9
Rotation : 0.000
Frame rate mode : CFR
Frame rate mode : Constant
FrameRate_Mode_Original : VFR
Frame rate : 59.940
Frame rate : 59.940 (60000/1001) FPS
FrameRate_Num : 60000
FrameRate_Den : 1001
Frame count : 1233
Color space : YUV
Chroma subsampling : 4:2:0
Chroma subsampling : 4:2:0
Bit depth : 8
Bit depth : 8 bits
Scan type : Progressive
Scan type : Progressive
Bits/(Pixel*Frame) : 0.089
Delay : 48786850
Delay : 13 h 33 min
Delay : 13 h 33 min 6 s 850 ms
Delay : 13 h 33 min
Delay : 13:33:06.850
Delay_Settings : DropFrame=No / 24HourMax=No / IsVisual=No
Delay_DropFrame : No
Delay, origin : Container
Delay, origin : Container
Stream size : 29305136
Stream size : 27.9 MiB (98%)
Stream size : 28 MiB
Stream size : 28 MiB
Stream size : 27.9 MiB
Stream size : 27.95 MiB
Stream size : 27.9 MiB (98%)
Proportion of this stream : 0.98253
Title : GoPro H.265
Writing library : x264 - core 155 r2917 0a84d98
Writing library : x264 core 155 r2917 0a84d98
Encoded_Library_Name : x264
Encoded_Library_Version : core 155 r2917 0a84d98
Encoding settings : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=18 / lookahead_threads=3 / 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=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=crf / mbtree=1 / crf=23.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Language : en
Language : English
Language : English
Language : en
Language : eng
Language : en
Color range : Full
colour_range_Source : Stream
Codec configuration box : avcC
Audio
Count : 280
Count of stream of this kind : 1
Kind of stream : Audio
Kind of stream : Audio
Stream identifier : 0
StreamOrder : 1
ID : 2
ID : 2
Format : AAC
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Commercial name : AAC
Format_AdditionalFeatures : LC
Codec ID : mp4a-40-2
Duration : 20566
Duration : 20 s 566 ms
Duration : 20 s 566 ms
Duration : 20 s 566 ms
Duration : 00:00:20.566
Duration : 00:00:20:24
Duration : 00:00:20.566 (00:00:20:24)
Bit rate mode : CBR
Bit rate mode : Constant
Bit rate : 192000
Bit rate : 192 kb/s
Channel(s) : 2
Channel(s) : 2 channels
Channel positions : Front: L R
Channel positions : 2/0/0
Channel layout : L R
Samples per frame : 1024
Sampling rate : 48000
Sampling rate : 48.0 kHz
Samples count : 987168
Frame rate : 46.875
Frame rate : 46.875 FPS (1024 SPF)
Frame count : 964
Compression mode : Lossy
Compression mode : Lossy
Delay : 48786850
Delay : 13 h 33 min
Delay : 13 h 33 min 6 s 850 ms
Delay : 13 h 33 min
Delay : 13:33:06.850
Delay_DropFrame : No
Delay, origin : Container
Delay, origin : Container
Delay relative to video : 0
Delay relative to video : 00:00:00.000
Stream size : 486535
Stream size : 475 KiB (2%)
Stream size : 475 KiB
Stream size : 475 KiB
Stream size : 475 KiB
Stream size : 475.1 KiB
Stream size : 475 KiB (2%)
Proportion of this stream : 0.01631
Title : GoPro AAC
Language : en
Language : English
Language : English
Language : en
Language : eng
Language : en
Default : Yes
Default : Yes
Alternate group : 1
Alternate group : 1