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5 commits

Author SHA1 Message Date
He Junyan c24c4e9b3f jpegdecoder: fail early if no input caps have been provided 
The jpegdecoder class does not implement the ->parse() virtual function,
and we always need to add the jpegparse element before it. So we should
set_needs_format of the decoder to TRUE, then if no parse before it, it
can fail with a "not-negotiated" error early, rather than go on and
generate unexpected error.

Fixes: https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1829
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4064>
 2023-02-25 10:41:53 +08:00
He Junyan cbbfab0f3b va: jpegdecoder: Do not check SOS state when parsing DRI marker. 
According to spec, the JPEG_MARKER_DRI(Restart interval definition)
marker can come before the SOS marker. So we should not check the SOS
state when parsing the DRI marker.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3943>
 2023-02-22 11:24:57 +00:00
Víctor Manuel Jáquez Leal e4f6ade308 va: Complete library and plugin documentation. 
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1025>
 2022-09-13 14:57:21 +02:00
He Junyan 67eb1223c0 jpegdecoder: return the real error of decode_scan and decode_frame. 
The current handle_frame() does not return the real error that happens
in decode_scan and decode_frame, which makes the pipeline continue with
the error and may trigger asserting later.

We also return the error when decode_quant_table or decode_huffman_table
fails.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2938>
 2022-08-25 17:42:55 +08:00
Víctor Manuel Jáquez Leal cc30854893 va: Add jpegdecoder base class. 
This base class is intented for hardware accelerated decoders, but since
only VA uses it, it will be kept internally in va plugin.

It follows the same logic as the others video decoders in the library but.
as JPEG are independet images, there's no need to handle a DBP so no need
of a picture object. Instead a scan object is added with all the structures
required to decode the image (huffman and quant tables, mcus, etc.).

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1575>
 2022-06-27 13:43:14 +00:00