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/*****************************************************************
* gmerlin-avdecoder - a general purpose multimedia decoding library
*
* Copyright (c) 2001 - 2012 Members of the Gmerlin project
* gmerlin-general@lists.sourceforge.net
* http://gmerlin.sourceforge.net
*
* This program 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.
*
* This program 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, see <http://www.gnu.org/licenses/>.
* *****************************************************************/
/* minimum number of bytes to read from a DV stream in order to
determine the profile */
#define DV_HEADER_SIZE (6*80) /* 6 DIF blocks */
/*
* Handler for DV frames
* It detects most interesting parameters from the DV
* data and can extract audio.
*/
typedef struct bgav_dv_dec_s bgav_dv_dec_t;
bgav_dv_dec_t * bgav_dv_dec_create();
void bgav_dv_dec_destroy(bgav_dv_dec_t*);
/* Sets the header for parsing. Data must be DV_HEADER_SIZE bytes long */
void bgav_dv_dec_set_header(bgav_dv_dec_t*, uint8_t * data);
int bgav_dv_dec_get_frame_size(bgav_dv_dec_t*);
/* Call this after seeking */
void bgav_dv_dec_set_frame_counter(bgav_dv_dec_t*, int64_t frames);
/* Call this after seeking */
void bgav_dv_dec_set_sample_counter(bgav_dv_dec_t*, int64_t samples);
/* Sets the frame for parsing. data must be frame_size bytes long */
void bgav_dv_dec_set_frame(bgav_dv_dec_t*, uint8_t * data);
/* ffmpeg is not able to tell the right pixel aspect ratio for DV streams */
void bgav_dv_dec_get_pixel_aspect(bgav_dv_dec_t*, uint32_t * pixel_width,
uint32_t * pixel_height);
void bgav_dv_dec_get_image_size(bgav_dv_dec_t*, uint32_t * width,
uint32_t * height);
void bgav_dv_dec_get_video_format(bgav_dv_dec_t * d, gavl_video_format_t * fmt);
gavl_pixelformat_t bgav_dv_dec_get_pixelformat(bgav_dv_dec_t*);
void bgav_dv_dec_get_timecode_format(bgav_dv_dec_t * d,
gavl_timecode_format_t * tf,
const bgav_options_t * opt);
/* Set up audio and video streams */
void bgav_dv_dec_init_audio(bgav_dv_dec_t*, bgav_stream_t * s);
void bgav_dv_dec_init_video(bgav_dv_dec_t*, bgav_stream_t * s);
/* Extract audio and video packets suitable for the decoders */
int bgav_dv_dec_get_audio_packet(bgav_dv_dec_t*, bgav_packet_t * p);
void bgav_dv_dec_get_video_packet(bgav_dv_dec_t*, bgav_packet_t * p);
int bgav_dv_dec_get_date(bgav_dv_dec_t * d,
int * year, int * month, int * day);
int bgav_dv_dec_get_time(bgav_dv_dec_t * d,
int * hour, int * minute, int * second);
int bgav_dv_dec_get_timecode(bgav_dv_dec_t * d,
gavl_timecode_t * tc);
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