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Diffstat (limited to 'ffmpeg/libavcodec/tak_parser.c')
-rw-r--r--ffmpeg/libavcodec/tak_parser.c122
1 files changed, 0 insertions, 122 deletions
diff --git a/ffmpeg/libavcodec/tak_parser.c b/ffmpeg/libavcodec/tak_parser.c
deleted file mode 100644
index 5d8460c..0000000
--- a/ffmpeg/libavcodec/tak_parser.c
+++ /dev/null
@@ -1,122 +0,0 @@
-/*
- * TAK parser
- * Copyright (c) 2012 Michael Niedermayer
- *
- * 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
- * TAK parser
- **/
-
-#include "tak.h"
-#include "parser.h"
-
-typedef struct TAKParseContext {
- ParseContext pc;
- TAKStreamInfo ti;
- int index;
-} TAKParseContext;
-
-static int tak_parse(AVCodecParserContext *s, AVCodecContext *avctx,
- const uint8_t **poutbuf, int *poutbuf_size,
- const uint8_t *buf, int buf_size)
-{
- TAKParseContext *t = s->priv_data;
- ParseContext *pc = &t->pc;
- int next = END_NOT_FOUND;
- GetBitContext gb;
- int consumed = 0;
- int needed = buf_size ? TAK_MAX_FRAME_HEADER_BYTES : 8;
-
- if (s->flags & PARSER_FLAG_COMPLETE_FRAMES) {
- TAKStreamInfo ti;
- init_get_bits(&gb, buf, buf_size);
- if (!ff_tak_decode_frame_header(avctx, &gb, &ti, 127))
- s->duration = t->ti.last_frame_samples ? t->ti.last_frame_samples
- : t->ti.frame_samples;
- *poutbuf = buf;
- *poutbuf_size = buf_size;
- return buf_size;
- }
-
- while (buf_size || t->index + needed <= pc->index) {
- if (buf_size && t->index + TAK_MAX_FRAME_HEADER_BYTES > pc->index) {
- int tmp_buf_size = FFMIN(2 * TAK_MAX_FRAME_HEADER_BYTES,
- buf_size);
- const uint8_t *tmp_buf = buf;
-
- if (ff_combine_frame(pc, END_NOT_FOUND, &tmp_buf, &tmp_buf_size) != -1)
- return AVERROR(ENOMEM);
- consumed += tmp_buf_size;
- buf += tmp_buf_size;
- buf_size -= tmp_buf_size;
- }
-
- for (; t->index + needed <= pc->index; t->index++) {
- if (pc->buffer[ t->index ] == 0xFF &&
- pc->buffer[ t->index + 1 ] == 0xA0) {
- TAKStreamInfo ti;
-
- init_get_bits(&gb, pc->buffer + t->index,
- 8 * (pc->index - t->index));
- if (!ff_tak_decode_frame_header(avctx, &gb,
- pc->frame_start_found ? &ti : &t->ti, 127) &&
- !ff_tak_check_crc(pc->buffer + t->index,
- get_bits_count(&gb) / 8)) {
- if (!pc->frame_start_found) {
- pc->frame_start_found = 1;
- s->duration = t->ti.last_frame_samples ?
- t->ti.last_frame_samples :
- t->ti.frame_samples;
- s->key_frame = !!(t->ti.flags & TAK_FRAME_FLAG_HAS_INFO);
- } else {
- pc->frame_start_found = 0;
- next = t->index - pc->index;
- t->index = 0;
- goto found;
- }
- }
- }
- }
- }
-found:
-
- if (consumed && !buf_size && next == END_NOT_FOUND ||
- ff_combine_frame(pc, next, &buf, &buf_size) < 0) {
- *poutbuf = NULL;
- *poutbuf_size = 0;
- return buf_size + consumed;
- }
-
- if (next != END_NOT_FOUND) {
- next += consumed;
- pc->overread = FFMAX(0, -next);
- }
-
- *poutbuf = buf;
- *poutbuf_size = buf_size;
- return next;
-}
-
-AVCodecParser ff_tak_parser = {
- .codec_ids = { AV_CODEC_ID_TAK },
- .priv_data_size = sizeof(TAKParseContext),
- .parser_parse = tak_parse,
- .parser_close = ff_parse_close,
-};