codecs: h264decoder: Add support for interlaced stream

Initial implementation to support decoding interlaced h264 stream

I'm looking forward your collaboration @ndufresne and @vjaquez

Currently only d3d11h264dec will correctly support interlaced stream (there's some leas due to uncleared GstVideoCodecFrame for the second field).

I'm not yet convince of the Frame wrapping pictures approach (I think the reflex gstreamer-vaapi style). I personally prefer the JM approach, a picture remains 1:1 with the output buffers, and then it contains a bit fields of what has been decoders (top, bottom, or both of MBAFF slices) along with poc being an array of 2 entries. Do you have more details around this design decision ?

mentioned in merge request !1776 (closed)

added 336 commits

• dfba5e8c...81151145 - 331 commits from branch gstreamer:master
• de8f5534 - codecs: h264decoder: Store reference picture type using enum value
• 7e1b2d32 - codecs: h264decoder: Remove interlaced stream related constraints
• 6692a66c - codecs: h264decoder: Rename DPB methods
• a4bbf49e - WIP: codecs: h264decoder: Add support for interlaced stream
• 0f880e41 - WIP: d3d11h264dec: Add support for interlaced stream

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resolved all threads

added 9 commits

• 0f880e41...5342b053 - 4 commits from branch gstreamer:master
• 45e34a00 - codecs: h264decoder: Store reference picture type using enum value
• f0559a01 - codecs: h264decoder: Remove interlaced stream related constraints
• 85cab5f5 - codecs: h264decoder: Rename DPB methods
• ec06b558 - codecs: h264decoder: Add support for interlaced stream
• 80b27055 - d3d11h264dec: Add support for interlaced stream

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unmarked as a Work In Progress

Updating current status

• d3d11h264dec can pass 127/135 using fluster
  • CVFC1_Sony_C -> cropping window, maybe ignored or can be revisit later
  • FM1_BT_B, FM1_FT_E, FM2_SVA_C-> slice group (FMO)
  • MR6_BT_B, MR8_BT_B -> PAFF, should be fixed at some point
  • SP1_BT_A, sp2_bt_b -> extension profiles

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• 80b27055...a2a73c02 - 2 commits from branch gstreamer:master
• 2a61bec9 - codecs: h264decoder: Store reference picture type using enum value
• fbf0ccc5 - codecs: h264decoder: Remove interlaced stream related constraints
• 5e5eaf03 - codecs: h264decoder: Rename DPB methods
• 7f190ecc - codecs: h264decoder: Add support for interlaced stream
• 1d276779 - d3d11h264dec: Add support for interlaced stream

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added 2 commits

• 83c9b1ed - codecs: h264decoder: Add support for interlaced stream
• 0d7fade4 - d3d11h264dec: Add support for interlaced stream

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added 4 commits

• 40cf9a61 - codecs: h264decoder: Remove interlaced stream related constraints
• dd226d1a - codecs: h264decoder: Rename DPB methods
• 30f07e40 - codecs: h264decoder: Add support for interlaced stream
• 3346291f - d3d11h264dec: Add support for interlaced stream

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resolved all threads

I'm running CI now, since last time I build with doc, there was few warnings, perhaps we could fix these trivial at the same time.

added 4 commits

• 30224700 - codecs: h264decoder: Remove interlaced stream related constraints
• 428562a0 - codecs: h264decoder: Rename DPB methods
• 1a8fabc8 - codecs: h264decoder: Add support for interlaced stream
• 866931cb - d3d11h264dec: Add support for interlaced stream

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arg...

ERROR: [check-missing-since-markers]: (missing-since-marker): /builds/seungha.yang/gst-plugins-bad/gst-build/subprojects/gst-plugins-bad/gst-libs/gst/codecs/gsth264decoder.h: Missing since marker for GstH264DecoderClass::new_field_picture
Downloading https://github.com/hotdoc/hotdoc_lumen_theme/releases/download/0.9999999/hotdoc_lumen_theme-0.9999999.tar.xz?sha256=ef3b9dd59550c2ba31a7fbcae1f69e6e77147f5e6e224f37a6cb55c162957437

If this try is also failed, maybe I need to request some help @meh

added 4 commits

• 9680c43f - codecs: h264decoder: Remove interlaced stream related constraints
• 87ae8885 - codecs: h264decoder: Rename DPB methods
• 68387afb - codecs: h264decoder: Add support for interlaced stream
• 7cf962c3 - d3d11h264dec: Add support for interlaced stream

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