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androidx / media

Jetpack Media3 support libraries for media use cases, including ExoPlayer, an extensible media player for Android
https://developer.android.com/media/media3
Apache License 2.0
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local storage video play normally but not Seekable. When try to seek ,video starts from beginning everytime #1862

Closed rup-sarma closed 2 weeks ago

rup-sarma commented 2 weeks ago

Version

Media3 main branch

More version details

No response

Devices that reproduce the issue

Oneplus Nord CE lite 3 5G and also other brands like Redmi, Realme, samsung etc.

Devices that do not reproduce the issue

No response

Reproducible in the demo app?

Yes

Reproduction steps

just Download video from this Google drive link https://drive.google.com/file/d/1iDVej49ELlstdxwxiLShy_5zM_5dzrJn/view?usp=drivesdk and then try play it and seek 10 seconds.

Expected result

ExoPlayer needs to seek to 10 seconds forward or rewind successfully and show default time bar thumb.

Actual result

when try to seek to 10 sec video starts from 00.00 secs again (Beginning).

Media

Download video from this link drive.go and play it from local storage

Bug Report

rup-sarma commented 2 weeks ago

here Is Media info of this file

General ---- Complete name : | Maharaja South Hindi Dubbed 2024.mp4 Format : | Matroska Format version : | Version 4 File size : | 1.31 GiB Duration : | 2 h 20 min Overall bit rate : | 1 326 kb/s Frame rate : | 24.000 FPS Movie name : | www.Khatrimazafull.net / Downloaded From HDHub4u Encoded date : | 2024-07-11 20:22:24 UTC Writing application : | mkvmerge v85.0 ('Shame For You') 64-bit Writing library : | libebml v1.4.5 + libmatroska v1.7.1 WEBSiTE : | HDHub4u.Tv FileExtension_Invalid : | mkv mk3d mka mks

Video ----- ID : 1 Format : | AVC Format/Info : | Advanced Video Codec Format profile : | High Format level : | 4 Format settings, CABAC : | Yes Format settings, Reference frames : | 7 frames Codec ID : | V_MPEG4/ISO/AVC Duration : | 2 h 20 min Nominal bit rate : | 1 100 kb/s Width : | 1 280 pixels Height : | 536 pixels Display aspect ratio : | 2.39:1 Frame rate mode : | Constant Frame rate : | 24.000 FPS Color space : | YUV Chroma subsampling : | 4:2:0 Bit depth : | 8 bits Scan type : | Progressive Bits/(Pixel*Frame) : | 0.067 Title : | www.Khatrimazafull.net Writing library : | x264 core 142 r2479 dd79a61 Encoding settings : | cabac=1 / ref=7 / deblock=1:0:0 / analyse=0x3:0x133 / me=umh / subme=10 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=96 / lookahead_threads=4 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=2 / weightb=1 / open_gop=0 / weightp=2 / keyint=240 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=60 / rc=2pass / mbtree=1 / bitrate=1100 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / vbv_maxrate=16500 / vbv_bufsize=14400 / nal_hrd=none / filler=0 / ip_ratio=1.40 / aq=1:1.00 Default : | Yes Forced : | No Color range : | Limited Color primaries : | BT.709 Transfer characteristics : | BT.709 Matrix coefficients : | BT.709

tianyif commented 2 weeks ago

When I reproduced this with demo app, I saw the below line was hit, which makes seeking in this media impossible.

https://github.com/androidx/media/blob/91dfaab93ff9ac07afcc751e0e989946fd74a836/libraries/extractor/src/main/java/androidx/media3/extractor/mkv/MatroskaExtractor.java#L768

Over this issue to my colleague for more insights.

rohitjoins commented 2 weeks ago

Hi @rup-sarma,

The media file you're working with doesn't contain cues that we can use to generate a seekMap, which is why it's marked as Unseekable. In the demo app, the seek bar is disabled, which is the intended behavior.

Please note that in your app, you should avoid trying to seek an Unseekable video, as this will trigger playback from the start (which is the intended behavior).

Let me know if you have any further questions or need more clarification!

rup-sarma commented 2 weeks ago

But MX Player & Xplayer can play this video perfectly. One more question how do i know that video isnot seekable at all.

rohitjoins commented 2 weeks ago

To check if the current media is seekable, you can use player.isCommandAvailable(COMMAND_SEEK_IN_CURRENT_MEDIA_ITEM).

But MX Player & Xplayer can play this video perfectly.

Other players may have workarounds that allow seeking for this type of media, but we aim to follow the MKV spec for handling it.

rup-sarma commented 2 weeks ago

Okay thanks. In order to resolved this problem myself, what types of Extractor method should i follow if you can give me any direction. That will be helpful

rohitjoins commented 2 weeks ago

In order to resolved this problem myself, what types of Extractor method should i follow if you can give me any direction.

As @tianyif pointed out earlier, the code hits this limitation, so in this case, you’ll need to implement a workaround by creating a seekMap and setting it in ExtractorOutput.

It would also be helpful to know the source of these media files and whether this is a common issue. If it’s widespread, we could consider adding a workaround to the library.

rup-sarma commented 2 weeks ago

This is a indian movie clip Downloaded from khatrimaza.net. most of the new film released in this year 2024 that i have downloaded from verious torrent website have this issue. Maybe it is a widespread issue I don't know but but i am facing quite frequently