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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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addbc3c4ca
Add property to ignore decoding errors. Default is to ignore a few decoding errors if the input is packetized, but error out immediately if the input is not packetized. Ignoring errors for packetized input most likely doesn't work properly yet, so don't do that for now. https://bugzilla.gnome.org/show_bug.cgi?id=623063
150 lines
3.8 KiB
C
150 lines
3.8 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_JPEG_DEC_H__
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#define __GST_JPEG_DEC_H__
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#include <setjmp.h>
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include <gst/base/gstadapter.h>
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/* this is a hack hack hack to get around jpeglib header bugs... */
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#ifdef HAVE_STDLIB_H
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# undef HAVE_STDLIB_H
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#endif
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#include <stdio.h>
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#include <jpeglib.h>
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G_BEGIN_DECLS
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#define GST_TYPE_JPEG_DEC \
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(gst_jpeg_dec_get_type())
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#define GST_JPEG_DEC(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_JPEG_DEC,GstJpegDec))
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#define GST_JPEG_DEC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_JPEG_DEC,GstJpegDecClass))
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#define GST_IS_JPEG_DEC(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_JPEG_DEC))
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#define GST_IS_JPEG_DEC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_JPEG_DEC))
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typedef struct _GstJpegDec GstJpegDec;
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typedef struct _GstJpegDecClass GstJpegDecClass;
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struct GstJpegDecErrorMgr {
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struct jpeg_error_mgr pub; /* public fields */
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jmp_buf setjmp_buffer;
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};
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struct GstJpegDecSourceMgr {
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struct jpeg_source_mgr pub; /* public fields */
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GstJpegDec *dec;
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};
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/* Can't use GstBaseTransform, because GstBaseTransform
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* doesn't handle the N buffers in, 1 buffer out case,
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* but only the 1-in 1-out case */
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struct _GstJpegDec {
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GstElement element;
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/* pads */
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GstPad *sinkpad;
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GstPad *srcpad;
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GstAdapter *adapter;
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guint8 *cur_buf;
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/* TRUE if each input buffer contains a whole jpeg image */
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gboolean packetized;
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/* the (expected) timestamp of the next frame */
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guint64 next_ts;
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GstSegment segment;
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/* TRUE if the next output buffer should have the DISCONT flag set */
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gboolean discont;
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/* QoS stuff *//* with LOCK */
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gdouble proportion;
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GstClockTime earliest_time;
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GstClockTime qos_duration;
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/* video state */
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gint framerate_numerator;
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gint framerate_denominator;
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/* negotiated state */
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gint caps_framerate_numerator;
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gint caps_framerate_denominator;
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gint caps_width;
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gint caps_height;
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gint outsize;
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gint clrspc;
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gint offset[3];
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gint stride;
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gint inc;
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/* parse state */
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gint parse_offset;
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gint parse_entropy_len;
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gint parse_resync;
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/* properties */
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gint idct_method;
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gint max_errors; /* ATOMIC */
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/* current error (the message is the debug message) */
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gchar *error_msg;
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int error_line;
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const gchar *error_func;
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/* number of errors since start or last successfully decoded image */
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guint error_count;
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/* number of successfully decoded images since start */
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guint good_count;
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struct jpeg_decompress_struct cinfo;
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struct GstJpegDecErrorMgr jerr;
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struct GstJpegDecSourceMgr jsrc;
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/* arrays for indirect decoding */
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gboolean idr_width_allocated;
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guchar *idr_y[16],*idr_u[16],*idr_v[16];
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/* current (parsed) image size */
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guint rem_img_len;
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};
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struct _GstJpegDecClass {
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GstElementClass parent_class;
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};
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GType gst_jpeg_dec_get_type(void);
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G_END_DECLS
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#endif /* __GST_JPEG_DEC_H__ */
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