#include "golomb.h"
#include "mpegvideo.h"
#include "cavs.h"
-#ifdef CONFIG_CAVS_DECODER
#include "cavsdata.h"
typedef struct {
CODEC_CAP_DR1 | CODEC_CAP_DELAY,
.flush= cavs_flush,
};
-#endif /* CONFIG_CAVS_DECODER */
-
-#ifdef CONFIG_CAVSVIDEO_PARSER
-/**
- * finds the end of the current frame in the bitstream.
- * @return the position of the first byte of the next frame, or -1
- */
-static int cavs_find_frame_end(ParseContext *pc, const uint8_t *buf,
- int buf_size) {
- int pic_found, i;
- uint32_t state;
-
- pic_found= pc->frame_start_found;
- state= pc->state;
-
- i=0;
- if(!pic_found){
- for(i=0; i<buf_size; i++){
- state= (state<<8) | buf[i];
- if(state == PIC_I_START_CODE || state == PIC_PB_START_CODE){
- i++;
- pic_found=1;
- break;
- }
- }
- }
-
- if(pic_found){
- /* EOF considered as end of frame */
- if (buf_size == 0)
- return 0;
- for(; i<buf_size; i++){
- state= (state<<8) | buf[i];
- if((state&0xFFFFFF00) == 0x100){
- if(state < SLICE_MIN_START_CODE || state > SLICE_MAX_START_CODE){
- pc->frame_start_found=0;
- pc->state=-1;
- return i-3;
- }
- }
- }
- }
- pc->frame_start_found= pic_found;
- pc->state= state;
- return END_NOT_FOUND;
-}
-
-static int cavsvideo_parse(AVCodecParserContext *s,
- AVCodecContext *avctx,
- const uint8_t **poutbuf, int *poutbuf_size,
- const uint8_t *buf, int buf_size)
-{
- ParseContext *pc = s->priv_data;
- int next;
-
- if(s->flags & PARSER_FLAG_COMPLETE_FRAMES){
- next= buf_size;
- }else{
- next= cavs_find_frame_end(pc, buf, buf_size);
-
- if (ff_combine_frame(pc, next, &buf, &buf_size) < 0) {
- *poutbuf = NULL;
- *poutbuf_size = 0;
- return buf_size;
- }
- }
- *poutbuf = buf;
- *poutbuf_size = buf_size;
- return next;
-}
-
-AVCodecParser cavsvideo_parser = {
- { CODEC_ID_CAVS },
- sizeof(ParseContext1),
- NULL,
- cavsvideo_parse,
- ff_parse1_close,
- ff_mpeg4video_split,
-};
-#endif /* CONFIG_CAVSVIDEO_PARSER */
--- /dev/null
+/*
+ * Chinese AVS video (AVS1-P2, JiZhun profile) parser.
+ * Copyright (c) 2006 Stefan Gehrer <stefan.gehrer@gmx.de>
+ *
+ * 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 St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file cavs_parser.c
+ * Chinese AVS video (AVS1-P2, JiZhun profile) parser
+ * @author Stefan Gehrer <stefan.gehrer@gmx.de>
+ */
+
+#include "parser.h"
+#include "cavs.h"
+
+
+/**
+ * finds the end of the current frame in the bitstream.
+ * @return the position of the first byte of the next frame, or -1
+ */
+static int cavs_find_frame_end(ParseContext *pc, const uint8_t *buf,
+ int buf_size) {
+ int pic_found, i;
+ uint32_t state;
+
+ pic_found= pc->frame_start_found;
+ state= pc->state;
+
+ i=0;
+ if(!pic_found){
+ for(i=0; i<buf_size; i++){
+ state= (state<<8) | buf[i];
+ if(state == PIC_I_START_CODE || state == PIC_PB_START_CODE){
+ i++;
+ pic_found=1;
+ break;
+ }
+ }
+ }
+
+ if(pic_found){
+ /* EOF considered as end of frame */
+ if (buf_size == 0)
+ return 0;
+ for(; i<buf_size; i++){
+ state= (state<<8) | buf[i];
+ if((state&0xFFFFFF00) == 0x100){
+ if(state < SLICE_MIN_START_CODE || state > SLICE_MAX_START_CODE){
+ pc->frame_start_found=0;
+ pc->state=-1;
+ return i-3;
+ }
+ }
+ }
+ }
+ pc->frame_start_found= pic_found;
+ pc->state= state;
+ return END_NOT_FOUND;
+}
+
+static int cavsvideo_parse(AVCodecParserContext *s,
+ AVCodecContext *avctx,
+ const uint8_t **poutbuf, int *poutbuf_size,
+ const uint8_t *buf, int buf_size)
+{
+ ParseContext *pc = s->priv_data;
+ int next;
+
+ if(s->flags & PARSER_FLAG_COMPLETE_FRAMES){
+ next= buf_size;
+ }else{
+ next= cavs_find_frame_end(pc, buf, buf_size);
+
+ if (ff_combine_frame(pc, next, &buf, &buf_size) < 0) {
+ *poutbuf = NULL;
+ *poutbuf_size = 0;
+ return buf_size;
+ }
+ }
+ *poutbuf = buf;
+ *poutbuf_size = buf_size;
+ return next;
+}
+
+AVCodecParser cavsvideo_parser = {
+ { CODEC_ID_CAVS },
+ sizeof(ParseContext1),
+ NULL,
+ cavsvideo_parse,
+ ff_parse1_close,
+ ff_mpeg4video_split,
+};