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7780db0401
Original commit message from CVS: * gst/mpegstream/gstmpegpacketize.c: (gst_mpeg_packetize_put), (read_cache): * gst/mpegstream/gstmpegpacketize.h: g_malloc() can't fail, we don't need to handle this. Same for gst_buffer_new_and_alloc(). * gst/mpegstream/gstmpegparse.c: (gst_mpeg_parse_chain): klass->send_buffer() should have the same semantics as gst_pad_push(), ie. ownership of the buffer is transfered, so we never have to unref the buffer no matter what the flow return value was.
79 lines
2.7 KiB
C
79 lines
2.7 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 __MPEGPACKETIZE_H__
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#define __MPEGPACKETIZE_H__
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#include <gst/gst.h>
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G_BEGIN_DECLS
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#define PICTURE_START_CODE 0x00
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#define SLICE_MIN_START_CODE 0x01
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#define SLICE_MAX_START_CODE 0xaf
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#define USER_START_CODE 0xb2
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#define SEQUENCE_START_CODE 0xb3
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#define SEQUENCE_ERROR_START_CODE 0xb4
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#define EXT_START_CODE 0xb5
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#define SEQUENCE_END_START_CODE 0xb7
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#define GOP_START_CODE 0xb8
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#define ISO11172_END_START_CODE 0xb9
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#define PACK_START_CODE 0xba
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#define SYS_HEADER_START_CODE 0xbb
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typedef struct _GstMPEGPacketize GstMPEGPacketize;
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#define GST_MPEG_PACKETIZE_ID(pack) ((pack)->id)
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#define GST_MPEG_PACKETIZE_IS_MPEG2(pack) ((pack)->MPEG2)
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typedef enum {
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GST_MPEG_PACKETIZE_SYSTEM,
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GST_MPEG_PACKETIZE_VIDEO,
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} GstMPEGPacketizeType;
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struct _GstMPEGPacketize {
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/* current parse state */
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guchar id;
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GstPad *srcpad;
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GstMPEGPacketizeType type;
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guint8 *cache; /* cache for incoming data */
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guint cache_size; /* allocated size of the cache */
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guint cache_head; /* position of the beginning of the data */
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guint cache_tail; /* position of the end of the data in the cache */
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guint64 cache_byte_pos; /* byte position of the cache in the MPEG stream */
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gboolean MPEG2;
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gboolean resync;
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};
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GstMPEGPacketize* gst_mpeg_packetize_new (GstPad *pad, GstMPEGPacketizeType type);
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void gst_mpeg_packetize_destroy (GstMPEGPacketize *packetize);
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guint64 gst_mpeg_packetize_tell (GstMPEGPacketize *packetize);
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void gst_mpeg_packetize_put (GstMPEGPacketize *packetize, GstBuffer * buf);
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GstFlowReturn gst_mpeg_packetize_read (GstMPEGPacketize *packetize, GstBuffer ** outbuf);
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G_END_DECLS
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#endif /* __MPEGPACKETIZE_H__ */
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