AM572x Decoding interlaced contents

Hello,

You could check this guide:
processors.wiki.ti.com/.../Processor_Training:_Multimedia

There is an example for deinterlacing.


BR
Margarita

Hi HYEON SEOK LEE,

I think your problem is in the gstreamer pipeline you are using. If you had and interlaced video, you do not need to use the vpe element.

This is the pipeline I used to display an interlaced video:

gst-launch-1.0 filesrc location= mm6-30-16FINAL.mp4 ! qtdemux ! queue ! h264parse ! ducatih264dec ! kmssink scale=false connector=30

The characteristics of the video with media info are:

mediainfo mm6-30-16FINAL.mp4
General
Complete name : mm6-30-16FINAL.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42
File size : 1.66 GiB
Duration : 29mn 1s
Overall bit rate mode : Variable
Overall bit rate : 8 190 Kbps
Encoded date : UTC 2016-07-12 19:31:32
Tagged date : UTC 2016-07-12 19:31:32

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 29mn 1s
Bit rate mode : Variable
Bit rate : 8 045 Kbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 59.940 fps
Original frame rate : 29.970 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Top Field First
Bits/(Pixel*Frame) : 0.065
Stream size : 1.62 GiB (98%)
Language : English
Encoded date : UTC 2016-07-12 19:31:32
Tagged date : UTC 2016-07-12 19:31:32

Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 29mn 1s
Source duration : 29mn 1s
Bit rate mode : Constant
Bit rate : 192 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 39.4 MiB (2%)
Source stream size : 39.4 MiB (2%)
Language : English
Encoded date : UTC 2016-07-12 19:31:32
Tagged date : UTC 2016-07-12 19:31:32

Also, I ran a pipeline that displays a de-interlaced (progressive scan). This is the pipeline I used:

gst-launch-1.0 filesrc location= TearOfSteel-AV-Short-720x406.mp4 ! qtdemux
name=demux demux.video_0 ! queue ! mpeg4videoparse ! ducatimpeg4dec ! kmssink sc
ale=true connector=30

The characteristics of the video with media info are:

mediainfo TearOfSteel-AV-Short-720x406.mp4
General
Complete name : TearOfSteel-AV-Short-720x406.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 6.93 MiB
Duration : 21s 73ms
Overall bit rate mode : Constant
Overall bit rate : 2 757 Kbps
Writing application : Lavf55.42.101

Video
ID : 1
Format : MPEG-4 Visual
Format profile : Simple@L1
Format settings, BVOP : No
Format settings, QPel : No
Format settings, GMC : No warppoints
Format settings, Matrix : Default (H.263)
Codec ID : 20
Duration : 21s 42ms
Bit rate mode : Constant
Bit rate : 2 628 Kbps
Width : 720 pixels
Height : 406 pixels
Display aspect ratio : 16:9
Original display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 24.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.375
Stream size : 6.59 MiB (95%)
Writing library : Lavc55.66.100
Language : English

Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 21s 73ms
Duration_LastFrame : 35ms
Bit rate mode : Constant
Bit rate : 128 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 329 KiB (5%)
Language : English

Best regards,

Eng. Daniel Garbanzo Hidalgo