diff options
Diffstat (limited to 'src/video_dec/libvdpau/h264_parser.h')
-rw-r--r-- | src/video_dec/libvdpau/h264_parser.h | 110 |
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 new file mode 100644 index 000000000..49bc56bab --- /dev/null +++ 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 |