peter
9778bdf351
The prod iGPU has no VC-1 Advanced decode ("No support for codec vc1 profile 3"), so every VC-1
session died on the GPU and fell back to libx264, which needs ~17 s for the three warm-up segments:
a start or a seek took ~19.5 s. VC-1, XviD and DivX now take CPU decode -> hwupload -> h264_vaapi
(three segments in 5.5 s for a 1080p VC-1 remux, measured on prod hardware with this argv).
The transcode_hw facet now says whether the GPU encodes: VC-1/XviD/DivX count, and so does an HDR
film (the OpenCL tonemap runs on the GPU; the facet said software). Migration 0119 rewrites the
stored facet and re-queues 10-bit items for the HDR probe.
71 lines
2.7 KiB
Python
71 lines
2.7 KiB
Python
"""Migration 0119's data step, DB-lane: the stored `transcode_hw` facet follows the rule that it says
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whether the GPU does the encode, and a 10-bit decodable item is probed again so its HDR flag decides.
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The schema half is checked by test_migrations.py; a facet value left stale is invisible there.
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"""
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from alembic import command
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from alembic.config import Config
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from sqlalchemy import text
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from app.db import engine
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def test_the_stored_facet_is_rewritten_by_the_gpu_encode_rule(db):
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cfg = Config("alembic.ini")
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command.downgrade(cfg, "0118_videos_shuffle_key")
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try:
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with engine.begin() as conn:
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lib = conn.execute(
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text(
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"INSERT INTO plex_libraries (plex_key, title, kind, enabled)"
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" VALUES ('m1', 'Movies', 'movie', true) RETURNING id"
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)
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).scalar_one()
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def item(key, playable, codec, hw, depth=None, probed=False):
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conn.execute(
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text(
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"INSERT INTO plex_items (rating_key, library_id, kind, title, playable,"
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" codec_video, transcode_hw, video_bit_depth, media_probed_at)"
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" VALUES (:k, :l, 'movie', :k, :p, :c, :hw, :d,"
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" CASE WHEN :pr THEN now() END)"
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),
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{
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"k": key,
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"l": lib,
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"p": playable,
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"c": codec,
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"hw": hw,
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"d": depth,
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"pr": probed,
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},
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)
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item("vc1", "transcode", "VC1", True, 8, probed=True) # the old list said decodable
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item("xvid", "transcode", "mpeg4", False)
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item("divx", "transcode", "msmpeg4v3", False)
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item("av1", "transcode", "av1", False)
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item("h8", "transcode", "hevc", True, 8, probed=True)
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item("h10", "transcode", "hevc", False, 10, probed=True) # SDR or HDR: unknown here
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item("remux", "remux", "h264", None)
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finally:
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command.upgrade(cfg, "head")
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with engine.connect() as conn:
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rows = {
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k: (hw, probed)
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for k, hw, probed in conn.execute(
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text("SELECT rating_key, transcode_hw, media_probed_at IS NOT NULL FROM plex_items")
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).tuples()
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}
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assert rows == {
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"vc1": (True, True),
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"xvid": (True, False),
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"divx": (True, False),
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"av1": (False, False),
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"h8": (True, True),
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"h10": (False, False), # re-queued: the probe reads its HDR flag again
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"remux": (None, False),
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}
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