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jpegdec: Fix progressive/interlaced detection

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If input height and parsed one are identical, do not consider it as interlaced

Fixing below pipeline:
gst-launch-1.0 videotestsrc ! video/x-raw,format=I420,width=640,height=10 \
  ! jpegenc ! jpegparse ! jpegdec ! videoconvert ! autovideosink

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6181>
This commit is contained in:
Seungha Yang 2024-02-22 20:35:28 +09:00
parent 3afeb73538
commit 125c89319a
1 changed files with 2 additions and 1 deletions
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3
subprojects/gst-plugins-good/ext/jpeg/gstjpegdec.c
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@ -1406,7 +1406,8 @@ gst_jpeg_dec_handle_frame (GstVideoDecoder * bdec, GstVideoCodecFrame * frame)
/* is it interlaced MJPEG? (we really don't want to scan the jpeg data
* to see if there are two SOF markers in the packet to detect this) */
if (gst_video_decoder_get_packetized (bdec) &&
dec->input_state && height > DCTSIZE &&
dec->input_state &&
dec->input_state->info.height != height && height > DCTSIZE &&
dec->input_state->info.height > (2 * (height - DCTSIZE)) &&
dec->input_state->info.height <= (height * 2)
&& dec->input_state->info.width == width) {