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-rw-r--r--src/video_dec/libvdpau/h264_parser.h110
1 files changed, 110 insertions, 0 deletions
diff --git a/src/video_dec/libvdpau/h264_parser.h b/src/video_dec/libvdpau/h264_parser.h
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+++ b/src/video_dec/libvdpau/h264_parser.h
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2008 Julian Scheel
+ *
+ * This file is part of xine, a free video player.
+ *
+ * xine 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.
+ *
+ * xine 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * h264_parser.h: Almost full-features H264 NAL-Parser
+ */
+
+#ifndef NAL_PARSER_H_
+#define NAL_PARSER_H_
+
+#include <stdlib.h>
+
+#include <xine/xine_internal.h>
+#include "nal.h"
+#include "dpb.h"
+
+#define MAX_FRAME_SIZE 1024*1024
+
+/* specifies wether the parser last parsed
+ * non-vcl or vcl nal units. depending on
+ * this the access unit boundaries are detected
+ */
+enum parser_position {
+ NON_VCL,
+ VCL
+};
+
+enum parser_flags {
+ CPB_DPB_DELAYS_PRESENT = 0x01,
+ PIC_STRUCT_PRESENT = 0x02
+};
+
+struct h264_parser {
+ uint8_t buf[MAX_FRAME_SIZE];
+ uint32_t buf_len;
+
+ /* prebuf is used to store the currently
+ * processed nal unit */
+ uint8_t prebuf[MAX_FRAME_SIZE];
+ uint32_t prebuf_len;
+ uint32_t next_nal_position;
+
+ uint8_t last_nal_res;
+
+ uint8_t nal_size_length;
+ uint32_t next_nal_size;
+ uint8_t *nal_size_length_buf;
+ uint8_t have_nal_size_length_buf;
+
+ enum parser_position position;
+
+ struct coded_picture *pic;
+
+ struct nal_unit *last_vcl_nal;
+ struct nal_buffer *sps_buffer;
+ struct nal_buffer *pps_buffer;
+
+ uint32_t prev_pic_order_cnt_lsb;
+ uint32_t prev_pic_order_cnt_msb;
+ uint32_t frame_num_offset;
+
+ int32_t prev_top_field_order_cnt;
+
+ uint32_t curr_pic_num;
+
+ uint16_t flag_mask;
+
+ /* this is dpb used for reference frame
+ * heading to vdpau + unordered frames
+ */
+ struct dpb *dpb;
+
+ xine_t *xine;
+};
+
+int parse_nal(uint8_t *buf, int buf_len, struct h264_parser *parser,
+ struct coded_picture **completed_picture);
+
+int seek_for_nal(uint8_t *buf, int buf_len, struct h264_parser *parser);
+
+struct h264_parser* init_parser(xine_t *xine);
+void reset_parser(struct h264_parser *parser);
+void free_parser(struct h264_parser *parser);
+int parse_frame(struct h264_parser *parser, uint8_t *inbuf, int inbuf_len,
+ int64_t pts,
+ uint8_t **ret_buf, uint32_t *ret_len, struct coded_picture **ret_pic);
+
+/* this has to be called after decoding the frame delivered by parse_frame,
+ * but before adding a decoded frame to the dpb.
+ */
+void process_mmc_operations(struct h264_parser *parser, struct coded_picture *picture);
+
+void parse_codec_private(struct h264_parser *parser, uint8_t *inbuf, int inbuf_len);
+
+#endif