Commit 8ec32866 authored by Paul B Mahol's avatar Paul B Mahol

avcodec: add dpx parser

Signed-off-by: 's avatarPaul B Mahol <onemda@gmail.com>
parent efff7564
......@@ -37,6 +37,7 @@ version <next>
the skip_alpha flag.
- ladspa wrapper filter
- native VP9 decoder
- dpx parser
version 2.0:
......
......@@ -744,6 +744,7 @@ OBJS-$(CONFIG_COOK_PARSER) += cook_parser.o
OBJS-$(CONFIG_DCA_PARSER) += dca_parser.o dca.o
OBJS-$(CONFIG_DIRAC_PARSER) += dirac_parser.o
OBJS-$(CONFIG_DNXHD_PARSER) += dnxhd_parser.o
OBJS-$(CONFIG_DPX_PARSER) += dpx_parser.o
OBJS-$(CONFIG_DVBSUB_PARSER) += dvbsub_parser.o
OBJS-$(CONFIG_DVD_NAV_PARSER) += dvd_nav_parser.o
OBJS-$(CONFIG_DVDSUB_PARSER) += dvdsub_parser.o
......
......@@ -525,6 +525,7 @@ void avcodec_register_all(void)
REGISTER_PARSER(DCA, dca);
REGISTER_PARSER(DIRAC, dirac);
REGISTER_PARSER(DNXHD, dnxhd);
REGISTER_PARSER(DPX, dpx);
REGISTER_PARSER(DVBSUB, dvbsub);
REGISTER_PARSER(DVDSUB, dvdsub);
REGISTER_PARSER(DVD_NAV, dvd_nav);
......
/*
* DPX parser
* Copyright (c) 2013 Paul B Mahol
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* DPX parser
*/
#include "libavutil/bswap.h"
#include "parser.h"
typedef struct DPXParseContext {
ParseContext pc;
uint32_t index;
uint32_t fsize;
uint32_t remaining_size;
int is_be;
} DPXParseContext;
static int dpx_parse(AVCodecParserContext *s, AVCodecContext *avctx,
const uint8_t **poutbuf, int *poutbuf_size,
const uint8_t *buf, int buf_size)
{
DPXParseContext *d = s->priv_data;
uint32_t state = d->pc.state;
int next = END_NOT_FOUND;
int i = 0;
s->pict_type = AV_PICTURE_TYPE_I;
*poutbuf_size = 0;
if (buf_size == 0)
return 0;
if (!d->pc.frame_start_found) {
for (; i < buf_size; i++) {
state = (state << 8) | buf[i];
if (state == MKBETAG('S','D','P','X') ||
state == MKTAG('S','D','P','X')) {
d->pc.frame_start_found = 1;
d->is_be = state == MKBETAG('S','D','P','X');
break;
}
}
d->pc.state = state;
} else {
if (d->remaining_size) {
i = FFMIN(d->remaining_size, buf_size);
d->remaining_size -= i;
if (d->remaining_size)
goto flush;
next = i;
}
}
for (;d->pc.frame_start_found && i < buf_size; i++) {
d->pc.state = (d->pc.state << 8) | buf[i];
if (d->index == 16) {
d->fsize = d->is_be ? d->pc.state : av_bswap32(d->pc.state);
if (d->fsize <= 1664) {
d->index = d->pc.frame_start_found = 0;
goto flush;
}
d->index = 0;
if (d->fsize > buf_size - i + 19)
d->remaining_size = d->fsize - buf_size + i - 19;
else
next = d->fsize + i - 19;
break;
}
d->index++;
}
flush:
if (ff_combine_frame(&d->pc, next, &buf, &buf_size) < 0)
return buf_size;
d->index = d->pc.frame_start_found = 0;
*poutbuf = buf;
*poutbuf_size = buf_size;
return next;
}
AVCodecParser ff_dpx_parser = {
.codec_ids = { AV_CODEC_ID_DPX },
.priv_data_size = sizeof(DPXParseContext),
.parser_parse = dpx_parse,
.parser_close = ff_parse_close,
};
......@@ -29,7 +29,7 @@
#include "libavutil/avutil.h"
#define LIBAVCODEC_VERSION_MAJOR 55
#define LIBAVCODEC_VERSION_MINOR 34
#define LIBAVCODEC_VERSION_MINOR 35
#define LIBAVCODEC_VERSION_MICRO 100
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
......
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