* "NUT" Container Format (de)muxer
* Copyright (c) 2006 Michael Niedermayer
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVFORMAT_NUT_H
#define AVFORMAT_NUT_H
-//#include <limits.h>
#include "avformat.h"
-#include "crc.h"
-//#include "mpegaudio.h"
-#include "riff.h"
-//#include "adler32.h"
+#include "internal.h"
+#include "metadata.h"
#define MAIN_STARTCODE (0x7A561F5F04ADULL + (((uint64_t)('N'<<8) + 'M')<<48))
#define STREAM_STARTCODE (0x11405BF2F9DBULL + (((uint64_t)('N'<<8) + 'S')<<48))
#define MAX_DISTANCE (1024*32-1)
+#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 then the frame header contains a checksum
- FLAG_RESERVED = 128, ///<if set, reserved_count 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_t;
-
-typedef struct {
+ 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 {
uint64_t pos;
uint64_t back_ptr;
// uint64_t global_key_pts;
int64_t ts;
-} syncpoint_t;
+} Syncpoint;
-typedef struct {
+typedef struct FrameCode {
uint16_t flags;
uint8_t stream_id;
uint16_t size_mul;
uint16_t size_lsb;
int16_t pts_delta;
uint8_t reserved_count;
-} FrameCode; // maybe s/FrameCode/framecode_t/ or change all to Java style but do not mix
+ uint8_t header_idx;
+} FrameCode;
-typedef struct {
+typedef struct StreamContext {
int last_flags;
int skip_until_key_frame;
int64_t last_pts;
int msb_pts_shift;
int max_pts_distance;
int decode_delay; //FIXME duplicate of has_b_frames
-} StreamContext;// maybe s/StreamContext/streamcontext_t/
+} StreamContext;
+
+typedef struct ChapterContext {
+ AVRational *time_base;
+} ChapterContext;
-typedef struct {
+typedef struct NUTContext {
+ const AVClass *av_class;
AVFormatContext *avf;
// int written_packet_size;
// int64_t packet_start;
FrameCode frame_code[256];
- uint64_t next_startcode; ///< stores the next startcode if it has already been parsed but the stream is not seekable
+ 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
StreamContext *stream;
+ ChapterContext *chapter;
unsigned int max_distance;
unsigned int time_base_count;
int64_t last_syncpoint_pos;
+ 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[];
+extern const AVCodecTag ff_nut_video_tags[];
+extern const AVCodecTag ff_nut_audio_tags[];
+extern const AVCodecTag ff_nut_data_tags[];
+
+extern const AVCodecTag * const ff_nut_codec_tags[];
+
+typedef struct Dispositions {
+ char str[9];
+ int flag;
+} Dispositions;
+
+void ff_nut_reset_ts(NUTContext *nut, AVRational time_base, int64_t val);
+int64_t ff_lsb2full(StreamContext *stream, int64_t lsb);
+int ff_nut_sp_pos_cmp(const Syncpoint *a, const Syncpoint *b);
+int ff_nut_sp_pts_cmp(const Syncpoint *a, const Syncpoint *b);
+int ff_nut_add_sp(NUTContext *nut, int64_t pos, int64_t back_ptr, int64_t ts);
+void ff_nut_free_sp(NUTContext *nut);
+
+extern const Dispositions ff_nut_dispositions[];
-//FIXME move to a common spot, like crc.c/h
-static unsigned long av_crc04C11DB7_update(unsigned long checksum, const uint8_t *buf, unsigned int len){
- return av_crc(av_crc04C11DB7, checksum, buf, len);
-}
+extern const AVMetadataConv ff_nut_metadata_conv[];
#endif /* AVFORMAT_NUT_H */
projects / ffmpeg / blobdiff