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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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c5c44628fc
Change the way the pixel-aspect-ratio is computed by interpreting the sequence header aspect ratio info as MPEG-1 values until a sequence extension or sequence display extension is seen, and then updating the sequence header struct accordingly. Fixes incorrect anamorphic display on some MPEG-2 (DVD) sequences.
96 lines
3 KiB
C
96 lines
3 KiB
C
/* GStreamer
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* Copyright (C) <2007> Jan Schmidt <thaytan@mad.scientist.com>
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* Copyright (C) <2011> Mark Nauwelaerts <mark.nauwelaerts@collabora.co.uk>
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* Copyright (C) <2011> Thibault Saunier <thibault.saunier@collabora.com>
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* Copyright (C) <2011> Collabora ltd
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* Copyright (C) <2011> Nokia Corporation
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* Copyright (C) <2011> Intel Corporation
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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_MPEGVIDEO_PARSE_H__
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#define __GST_MPEGVIDEO_PARSE_H__
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#include <gst/gst.h>
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#include <gst/base/gstbaseparse.h>
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#include <gst/codecparsers/gstmpegvideoparser.h>
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G_BEGIN_DECLS
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#define GST_TYPE_MPEGVIDEO_PARSE (gst_mpegv_parse_get_type())
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#define GST_MPEGVIDEO_PARSE(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),\
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GST_TYPE_MPEGVIDEO_PARSE, GstMpegvParse))
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#define GST_MPEGVIDEO_PARSE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),\
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GST_TYPE_MPEGVIDEO_PARSE, GstMpegvParseClass))
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#define GST_MPEGVIDEO_PARSE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),\
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GST_TYPE_MPEGVIDEO_PARSE, GstMpegvParseClass))
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#define GST_IS_MPEGVIDEO_PARSE(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),\
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GST_TYPE_MPEGVIDEO_PARSE))
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#define GST_IS_MPEGVIDEO_PARSE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),\
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GST_TYPE_MPEGVIDEO_PARSE))
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typedef struct _GstMpegvParse GstMpegvParse;
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typedef struct _GstMpegvParseClass GstMpegvParseClass;
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/* Config/sequence flags. Reset each time config is re-parsed */
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enum {
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FLAG_NONE = 0,
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FLAG_MPEG2 = 1,
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FLAG_SEQUENCE_EXT = 2,
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FLAG_SEQUENCE_DISPLAY_EXT = 4
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};
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struct _GstMpegvParse {
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GstBaseParse element;
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/* parse state */
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gint ext_offsets[10];
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gint ext_count;
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gint last_sc;
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gint seq_offset;
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gint seq_size;
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gint pic_offset;
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gboolean update_caps;
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gboolean send_codec_tag;
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GstBuffer *config;
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guint8 profile;
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guint config_flags;
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GstMpegVideoSequenceHdr sequencehdr;
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GstMpegVideoSequenceExt sequenceext;
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GstMpegVideoSequenceDisplayExt sequencedispext;
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GstMpegVideoPictureHdr pichdr;
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/* properties */
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gboolean drop;
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gboolean gop_split;
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int fps_num;
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int fps_den;
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int frame_repeat_count;
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};
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struct _GstMpegvParseClass {
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GstBaseParseClass parent_class;
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};
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GType gst_mpegv_parse_get_type (void);
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G_END_DECLS
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#endif /* __GST_MPEGVIDEO_PARSE_H__ */
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