summaryrefslogtreecommitdiff
path: root/src/video_dec/libmpeg2/mpeg2.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/video_dec/libmpeg2/mpeg2.h')
-rw-r--r--src/video_dec/libmpeg2/mpeg2.h100
1 files changed, 100 insertions, 0 deletions
diff --git a/src/video_dec/libmpeg2/mpeg2.h b/src/video_dec/libmpeg2/mpeg2.h
new file mode 100644
index 000000000..ae69688f5
--- /dev/null
+++ b/src/video_dec/libmpeg2/mpeg2.h
@@ -0,0 +1,100 @@
+/*
+ * mpeg2.h
+ * Copyright (C) 1999-2001 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
+ *
+ * This file is part of mpeg2dec, a free MPEG-2 video stream decoder.
+ *
+ * mpeg2dec is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * mpeg2dec is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/* Structure for the mpeg2dec decoder */
+
+#ifndef MPEG2_H
+#define MPEG2_H
+
+#include "libmpeg2_accel.h"
+
+typedef struct mpeg2dec_s {
+ xine_video_port_t * output;
+ uint32_t frame_format;
+
+ /* this is where we keep the state of the decoder */
+ struct picture_s * picture;
+ void *picture_base;
+
+ uint32_t shift;
+ int new_sequence;
+ int is_sequence_needed;
+ int is_wait_for_ip_frames;
+ int frames_to_drop, drop_frame;
+ int in_slice;
+ int seek_mode, is_frame_needed;
+
+ /* the maximum chunk size is determined by vbv_buffer_size */
+ /* which is 224K for MP@ML streams. */
+ /* (we make no pretenses of decoding anything more than that) */
+ /* allocated in init - gcc has problems allocating such big structures */
+ uint8_t * chunk_buffer;
+ void *chunk_base;
+ /* pointer to current position in chunk_buffer */
+ uint8_t * chunk_ptr;
+ /* last start code ? */
+ uint8_t code;
+ uint32_t chunk_size;
+
+ int64_t pts;
+ uint32_t rff_pattern;
+ int force_aspect;
+ int force_pan_scan;
+
+ /* AFD data can be found after a sequence, group or picture start code */
+ /* and will be stored in afd_value_seen. Later it will be transfered to */
+ /* a stream property and stored into afd_value_reported to detect changes */
+ int afd_value_seen;
+ int afd_value_reported;
+
+ xine_stream_t *stream;
+
+ /* a spu decoder for possible closed captions */
+ spu_decoder_t *cc_dec;
+ mpeg2dec_accel_t accel;
+
+} mpeg2dec_t ;
+
+
+/* initialize mpegdec with a opaque user pointer */
+void mpeg2_init (mpeg2dec_t * mpeg2dec,
+ xine_video_port_t * output);
+
+/* destroy everything which was allocated, shutdown the output */
+void mpeg2_close (mpeg2dec_t * mpeg2dec);
+
+int mpeg2_decode_data (mpeg2dec_t * mpeg2dec,
+ uint8_t * data_start, uint8_t * data_end,
+ uint64_t pts);
+
+void mpeg2_find_sequence_header (mpeg2dec_t * mpeg2dec,
+ uint8_t * data_start, uint8_t * data_end);
+
+void mpeg2_flush (mpeg2dec_t * mpeg2dec);
+void mpeg2_reset (mpeg2dec_t * mpeg2dec);
+void mpeg2_discontinuity (mpeg2dec_t * mpeg2dec);
+
+/* Not needed, it is defined as static in decode.c, and no-one else called it
+ * currently
+ */
+/* void process_userdata(mpeg2dec_t *mpeg2dec, uint8_t *buffer); */
+
+#endif