V1.0.5

packages/artinchip/mpp/middle_media/base/parser/avi/avi.h

@@ -0,0 +1,101 @@
+/*
+* Copyright (C) 2020-2024 Artinchip Technology Co. Ltd
+*
+*  author: <che.jiang@artinchip.com>
+*  Desc: avi.h
+*/
+
+#ifndef __AVI_H__
+#define __AVI_H__
+
+#include <unistd.h>
+#include "aic_parser.h"
+#include "aic_tag.h"
+
+#define AVIF_HASINDEX       0x00000010 // Index at end of file?
+#define AVIF_MUSTUSEINDEX   0x00000020
+#define AVIF_ISINTERLEAVED  0x00000100
+#define AVIF_TRUSTCKTYPE    0x00000800 // Use CKType to find key frames?
+#define AVIF_WASCAPTUREFILE 0x00010000
+#define AVIF_COPYRIGHTED    0x00020000
+
+#define AVI_MAX_RIFF_SIZE 0x40000000LL
+
+/* stream header flags */
+#define AVISF_VIDEO_PALCHANGES 0x00010000
+
+/* index flags */
+#define AVIIF_INDEX   0x00000010
+#define AVIIF_NO_TIME 0x00000100
+
+#define AV_INPUT_BUFFER_PADDING_SIZE 64
+
+struct avi_index_entry {
+    int64_t pos;
+    int64_t timestamp; // dts
+    int size;
+    int min_distance;
+    int flags;
+};
+
+struct avi_stream {
+    /* current frame (video) or byte (audio) counter * (used to compute the pts) */
+    int64_t frame_offset;
+    uint32_t handler;
+    uint32_t scale;
+    uint32_t rate;
+    /* size of one sample (or packet) * (in the rate/scale sense) in bytes */
+    int sample_size;
+    int64_t cum_len; /* temporary storage (used during seek) */
+    /* block align variable used to emulate bugs in * the MS dshow demuxer */
+    int dshow_block_align;
+};
+
+struct avi_stream_ctx {
+    void *priv_data;
+    int index;
+    int64_t nb_frames;
+    int64_t duration;
+
+    int cur_sample_idx;
+    struct aic_codec_param codecpar;
+
+    int nb_index_entries;
+    int alloc_entries_flag;
+    struct avi_index_entry *index_entries;
+};
+
+struct avi_context {
+    int64_t riff_end;
+    int64_t movi_end;
+    int64_t fsize;
+    int64_t io_fsize;
+    int64_t movi_list;
+    int64_t last_pkt_pos;
+    int index_loaded;
+    int is_odml;
+    int non_interleaved;
+    int stream_index;
+    int odml_depth;
+    int use_odml;
+#define MAX_ODML_DEPTH 1000
+    int64_t dts_max;
+};
+
+#define AVI_MAX_TRACK_NUM 8
+struct aic_avi_parser {
+    struct aic_parser base;
+    struct aic_stream *stream;
+    struct avi_context avi_c;
+
+    int nb_streams;
+    struct avi_stream_ctx *streams[AVI_MAX_TRACK_NUM];
+    struct avi_index_entry *cur_sample;
+};
+
+int avi_read_header(struct aic_avi_parser *s);
+int avi_read_close(struct aic_avi_parser *s);
+int avi_peek_packet(struct aic_avi_parser *c, struct aic_parser_packet *pkt);
+int avi_seek_packet(struct aic_avi_parser *c, s64 pts);
+int avi_read_packet(struct aic_avi_parser *s, struct aic_parser_packet *pkt);
+#endif /* __AVIDEC_H__ */