#define MAX_DISTANCE (1024*32-1)
-#define NUT_VERSION 3
+#define NUT_MAX_VERSION 4
+#define NUT_STABLE_VERSION 3
+#define NUT_MIN_VERSION 2
typedef enum{
- FLAG_KEY = 1, ///<if set, frame is keyframe
- FLAG_EOR = 2, ///<if set, stream has no relevance on presentation. (EOR)
- FLAG_CODED_PTS = 8, ///<if set, coded_pts is in the frame header
- FLAG_STREAM_ID = 16, ///<if set, stream_id is coded in the frame header
- FLAG_SIZE_MSB = 32, ///<if set, data_size_msb is at frame header, otherwise data_size_msb is 0
- FLAG_CHECKSUM = 64, ///<if set, the frame header contains a checksum
- FLAG_RESERVED = 128, ///<if set, reserved_count is coded in the frame header
- FLAG_HEADER_IDX =1024, ///<If set, header_idx is coded in the frame header.
- FLAG_MATCH_TIME =2048, ///<If set, match_time_delta is coded in the frame header
- FLAG_CODED =4096, ///<if set, coded_flags are stored in the frame header
- FLAG_INVALID =8192, ///<if set, frame_code is invalid
+ FLAG_KEY = 1, // if set, frame is keyframe
+ FLAG_EOR = 2, // if set, stream has no relevance on presentation. (EOR)
+ FLAG_CODED_PTS = 8, // if set, coded_pts is in the frame header
+ FLAG_STREAM_ID = 16, // if set, stream_id is coded in the frame header
+ FLAG_SIZE_MSB = 32, // if set, data_size_msb is at frame header, otherwise data_size_msb is 0
+ FLAG_CHECKSUM = 64, // if set, the frame header contains a checksum
+ FLAG_RESERVED = 128, // if set, reserved_count is coded in the frame header
+ FLAG_HEADER_IDX =1024, // If set, header_idx is coded in the frame header.
+ FLAG_MATCH_TIME =2048, // If set, match_time_delta is coded in the frame header
+ FLAG_CODED =4096, // if set, coded_flags are stored in the frame header
+ FLAG_INVALID =8192, // if set, frame_code is invalid
} Flag;
typedef struct Syncpoint {
} ChapterContext;
typedef struct NUTContext {
+ const AVClass *av_class;
AVFormatContext *avf;
// int written_packet_size;
// int64_t packet_start;
FrameCode frame_code[256];
uint8_t header_len[128];
const uint8_t *header[128];
- uint64_t next_startcode; ///< stores the next startcode if it has already been parsed but the stream is not seekable
+ uint64_t next_startcode; // stores the next startcode if it has already been parsed but the stream is not seekable
StreamContext *stream;
ChapterContext *chapter;
unsigned int max_distance;
int header_count;
AVRational *time_base;
struct AVTreeNode *syncpoints;
+#define NUT_BROADCAST 1 // use extended syncpoints
+#define NUT_PIPE 2 // do not write syncpoints
+ int flags;
+ int version; // version currently in use
} NUTContext;
extern const AVCodecTag ff_nut_subtitle_tags[];