u/sicclee

Identifying issues with file's video track (missing? unplayable?)

I received 3 video files that are to be used as evidence in a hearing. The source is a single video taken via SnapChat on an Android phone. Total length was ~11.5 min, but the video has been split up into 2x 5:00 files and 1x 1:42 file.

There appears to be something wrong with the video tracks in all 3 files. I assume there was an issue caused by converting or something, but I'm unable to see video in any of them.

The last file, the 1:42 one, I received a different copy of from another source. This one is able to be played like normal, with both video and audio.

I've tried many things to play the files. VLC, WMP, WMP classic, and MPC-HC with K-Lite Mega codec pack:

>VLC will play the audio, but doesn't recognize a video track at all. I've tried disabling hardware acceleration and a couple other things I found in google, but no-go.

>WMP doesn't play the files at all, gives unsupported/unrecognized/corrupt error.

>WMP Classic/MPC-HC both play the audio and recognize the video track, but can't display the video. This is what I see in the properties in MPC-HC:

Video: HVC1 480x848 23.758fps [V: Snap Video [eng] (hevc main L5.1, yuv420p, 480x848)]

Any idea what I need to do to recover the video in these files?

Here is the comparison between the two different versions of the 1:42 files from mediainfo.js.org:

Bad File:

General#1
VideoCount
AudioCount
Format
Format_Profile
CodecID
CodecID_Compatible
FileSize
Duration
OverallBitRate_Mode
OverallBitRate
FrameRate
FrameCount
HeaderSize
DataSize
FooterSize
IsStreamable
Encoded_Date
Tagged_Date
Unknown
Video#2
StreamOrder
ID
Format
Format_Profile
Format_Level
Format_Tier
CodecID
Duration
BitRate_Mode
BitRate
Width
Height
Sampled_Width
Sampled_Height
PixelAspectRatio
DisplayAspectRatio
Rotation
FrameRate_Mode
FrameRate
FrameRate_Minimum
FrameRate_Maximum
FrameCount
ColorSpace
ChromaSubsampling
BitDepth
StreamSize
Title
Language
Encoded_Date
Tagged_Date
colour_description_present
colour_description_present_Source
colour_range
colour_range_Source
colour_range_Original
colour_range_Original_Source
colour_primaries
colour_primaries_Source
transfer_characteristics
transfer_characteristics_Source
transfer_characteristics_Original
transfer_characteristics_Original_Source
matrix_coefficients
matrix_coefficients_Source
mdhd_Duration
CodecConfigurationBox
Audio#3
StreamOrder
ID
Format
Format_AdditionalFeatures
CodecID
Duration
BitRate_Mode
BitRate
Channels
ChannelPositions
ChannelLayout
SamplesPerFrame
SamplingRate
SamplingCount
FrameRate
FrameCount
Compression_Mode
StreamSize
Title
Language
Encoded_Date
Tagged_Date

Good File:

General#1
VideoCount
AudioCount
Format
Format_Profile
CodecID
CodecID_Compatible
FileSize
Duration
OverallBitRate
FrameRate
FrameCount
StreamSize
HeaderSize
DataSize
FooterSize
IsStreamable
Encoded_Date
Tagged_Date
VIDEO_PROCESSING_ID
description
Video#2
StreamOrder
ID
Format
Format_Profile
Format_Level
Format_Tier
CodecID
Duration
BitRate
Width
Height
Sampled_Width
Sampled_Height
PixelAspectRatio
DisplayAspectRatio
Rotation
FrameRate_Mode
FrameRate
FrameRate_Minimum
FrameRate_Maximum
FrameCount
ColorSpace
ChromaSubsampling
BitDepth
StreamSize
Title
Language
Encoded_Date
Tagged_Date
colour_description_present
colour_description_present_Source
colour_range
colour_range_Source
colour_range_Original
colour_range_Original_Source
colour_primaries
colour_primaries_Source
transfer_characteristics
transfer_characteristics_Source
transfer_characteristics_Original
transfer_characteristics_Original_Source
matrix_coefficients
matrix_coefficients_Source
mdhd_Duration
CodecConfigurationBox
Audio#3
StreamOrder
ID
Format
Format_AdditionalFeatures
CodecID
Duration
BitRate_Mode
BitRate
Channels
ChannelPositions
ChannelLayout
SamplesPerFrame
SamplingRate
SamplingCount
FrameRate
FrameCount
Compression_Mode
StreamSize
Title
Language
Encoded_Date
Tagged_Date
reddit.com
u/sicclee — 21 hours ago