32 #define ASF_INDEXED_INTERVAL 10000000
33 #define ASF_INDEX_BLOCK 600
35 #define ASF_PACKET_ERROR_CORRECTION_DATA_SIZE 0x2
36 #define ASF_PACKET_ERROR_CORRECTION_FLAGS (\
37 ASF_PACKET_FLAG_ERROR_CORRECTION_PRESENT | \
38 ASF_PACKET_ERROR_CORRECTION_DATA_SIZE\
41 #if (ASF_PACKET_ERROR_CORRECTION_FLAGS != 0)
42 # define ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE 1
44 # define ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE 0
47 #define ASF_PPI_PROPERTY_FLAGS (\
48 ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_BYTE | \
49 ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_DWORD | \
50 ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_BYTE | \
51 ASF_PL_FLAG_STREAM_NUMBER_LENGTH_FIELD_IS_BYTE \
54 #define ASF_PPI_LENGTH_TYPE_FLAGS 0
56 #define ASF_PAYLOAD_FLAGS ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_WORD
58 #if (ASF_PPI_FLAG_SEQUENCE_FIELD_IS_BYTE == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_SEQUENCE_FIELD_SIZE))
59 # define ASF_PPI_SEQUENCE_FIELD_SIZE 1
61 #if (ASF_PPI_FLAG_SEQUENCE_FIELD_IS_WORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_SEQUENCE_FIELD_SIZE))
62 # define ASF_PPI_SEQUENCE_FIELD_SIZE 2
64 #if (ASF_PPI_FLAG_SEQUENCE_FIELD_IS_DWORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_SEQUENCE_FIELD_SIZE))
65 # define ASF_PPI_SEQUENCE_FIELD_SIZE 4
67 #ifndef ASF_PPI_SEQUENCE_FIELD_SIZE
68 # define ASF_PPI_SEQUENCE_FIELD_SIZE 0
72 #if (ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_BYTE == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE))
73 # define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 1
75 #if (ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_WORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE))
76 # define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 2
78 #if (ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_DWORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE))
79 # define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 4
81 #ifndef ASF_PPI_PACKET_LENGTH_FIELD_SIZE
82 # define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 0
85 #if (ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PADDING_LENGTH_FIELD_SIZE))
86 # define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 1
88 #if (ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PADDING_LENGTH_FIELD_SIZE))
89 # define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 2
91 #if (ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_DWORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PADDING_LENGTH_FIELD_SIZE))
92 # define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 4
94 #ifndef ASF_PPI_PADDING_LENGTH_FIELD_SIZE
95 # define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 0
98 #if (ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_BYTE == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_REPLICATED_DATA_LENGTH_FIELD_SIZE))
99 # define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 1
101 #if (ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_WORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_REPLICATED_DATA_LENGTH_FIELD_SIZE))
102 # define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 2
104 #if (ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_DWORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_REPLICATED_DATA_LENGTH_FIELD_SIZE))
105 # define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 4
107 #ifndef ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE
108 # define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 0
111 #if (ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_BYTE == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_SIZE))
112 # define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 1
114 #if (ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_WORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_SIZE))
115 # define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 2
117 #if (ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_DWORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_SIZE))
118 # define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 4
120 #ifndef ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE
121 # define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 0
124 #if (ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_BYTE == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_SIZE))
125 # define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 1
127 #if (ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_WORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_SIZE))
128 # define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 2
130 #if (ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_DWORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_SIZE))
131 # define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 4
133 #ifndef ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE
134 # define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 0
137 #if (ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_BYTE == (ASF_PAYLOAD_FLAGS & ASF_PL_MASK_PAYLOAD_LENGTH_FIELD_SIZE))
138 # define ASF_PAYLOAD_LENGTH_FIELD_SIZE 1
140 #if (ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_WORD == (ASF_PAYLOAD_FLAGS & ASF_PL_MASK_PAYLOAD_LENGTH_FIELD_SIZE))
141 # define ASF_PAYLOAD_LENGTH_FIELD_SIZE 2
143 #ifndef ASF_PAYLOAD_LENGTH_FIELD_SIZE
144 # define ASF_PAYLOAD_LENGTH_FIELD_SIZE 0
147 #define PACKET_HEADER_MIN_SIZE (\
148 ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE + \
149 ASF_PACKET_ERROR_CORRECTION_DATA_SIZE + \
152 ASF_PPI_PACKET_LENGTH_FIELD_SIZE + \
153 ASF_PPI_SEQUENCE_FIELD_SIZE + \
154 ASF_PPI_PADDING_LENGTH_FIELD_SIZE + \
161 #define ASF_PAYLOAD_REPLICATED_DATA_LENGTH 0x08
163 #define PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD (\
165 ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE + \
166 ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE + \
167 ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE + \
168 ASF_PAYLOAD_REPLICATED_DATA_LENGTH \
171 #define PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS (\
173 ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE + \
174 ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE + \
175 ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE + \
176 ASF_PAYLOAD_REPLICATED_DATA_LENGTH + \
177 ASF_PAYLOAD_LENGTH_FIELD_SIZE \
180 #define SINGLE_PAYLOAD_DATA_LENGTH (\
182 PACKET_HEADER_MIN_SIZE - \
183 PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD \
186 #define MULTI_PAYLOAD_CONSTANT (\
188 PACKET_HEADER_MIN_SIZE - \
190 2*PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS \
202 int packet_size_left;
209 uint64_t data_offset;
225 #define PREROLL_TIME 3100
229 assert(
sizeof(*g) == 16);
276 length = payload_length + 8;
290 t = ti * INT64_C(10000000);
291 t += INT64_C(116444736000000000);
301 int header_size, n,
extra_size, extra_size2, wav_extra_size, file_time;
305 int64_t header_offset, cur_pos, hpos;
318 has_title = tags[0] || tags[1] || tags[2] || tags[3] || tags[4];
384 if (metadata_count) {
409 extra_size = 18 + wav_extra_size;
415 extra_size = 0x33 + wav_extra_size;
441 if (wavsize != extra_size) {
493 desc =
"Windows Media Audio V8";
526 header_size = cur_pos - header_offset;
528 header_size += 8 + 30 + 50;
530 avio_seek(pb, header_offset - 10 - 30, SEEK_SET);
532 avio_seek(pb, header_offset - 2 - 30, SEEK_SET);
535 header_size -= 8 + 30 + 50;
537 header_size += 24 + 6;
538 avio_seek(pb, header_offset - 14, SEEK_SET);
596 unsigned int sendtime,
650 int packet_hdr_size, packet_filled_size;
667 assert(packet_hdr_size <= asf->packet_size_left);
684 int presentation_time,
729 int m_obj_offset, payload_len, frag_len1;
732 while (m_obj_offset < m_obj_size) {
733 payload_len = m_obj_size - m_obj_offset;
756 if (payload_len > frag_len1)
757 payload_len = frag_len1;
758 else if (payload_len == (frag_len1 - 1))
759 payload_len = frag_len1 - 2;
774 m_obj_offset += payload_len;
791 int64_t packet_st,pts;
808 duration = pts * 10000;
816 start_sec = (int)(duration / INT64_C(10000000));
842 avio_wl64(pb, 24 + 16 + 8 + 4 + 4 + (4 + 2)*count);
847 for(i=0; i<count; i++) {
858 int64_t file_size,data_size;
888 .mime_type =
"video/x-ms-asf",
889 .extensions =
"asf,wmv,wma",
903 #if CONFIG_ASF_STREAM_MUXER
905 .
name =
"asf_stream",
907 .mime_type =
"video/x-ms-asf",
908 .extensions =
"asf,wmv,wma",
920 #endif //CONFIG_ASF_STREAM_MUXER
const ff_asf_guid ff_asf_header
void * av_malloc(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
void avio_wl16(AVIOContext *s, unsigned int val)
#define ASF_PAYLOAD_FLAGS
AVCodec * avcodec_find_encoder(enum AVCodecID id)
Find a registered encoder with a matching codec ID.
int avio_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer)
Return the written size and a pointer to the buffer.
const ff_asf_guid ff_asf_codec_comment_header
#define PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD
unsigned char * buf_ptr
Current position in the buffer.
unsigned int packet_nb_payloads
static int64_t unix_to_file_time(int ti)
#define PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS
static int asf_write_packet(AVFormatContext *s, AVPacket *pkt)
uint64_t data_offset
beginning of the first data packet
int av_dict_count(const AVDictionary *m)
Get number of entries in dictionary.
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
unsigned char * buffer
Start of the buffer.
static int asf_write_trailer(AVFormatContext *s)
AVDictionaryEntry * av_dict_get(AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags)
Get a dictionary entry with matching key.
int avio_open_dyn_buf(AVIOContext **s)
Open a write only memory stream.
int block_align
number of bytes per packet if constant and known or 0 Used by some WAV based audio codecs...
void av_freep(void *arg)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc() and set the pointer ...
const ff_asf_guid ff_asf_data_header
void avio_wl32(AVIOContext *s, unsigned int val)
const ff_asf_guid ff_asf_audio_stream
static void put_payload_header(AVFormatContext *s, ASFStream *stream, int presentation_time, int m_obj_size, int m_obj_offset, int payload_len, int flags)
static int asf_write_header(AVFormatContext *s)
ASFStream streams[128]
it's max number and it's not that big
#define MKTAG(a, b, c, d)
#define ASF_PPI_LENGTH_TYPE_FLAGS
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
#define AVFMT_GLOBALHEADER
void avio_write(AVIOContext *s, const unsigned char *buf, int size)
int duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
void avio_wl64(AVIOContext *s, uint64_t val)
static int asf_write_index(AVFormatContext *s, ASFIndex *index, uint16_t max, uint32_t count)
void av_free(void *ptr)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc(). ...
const ff_asf_guid ff_asf_head1_guid
static int64_t extra_size
const ff_asf_guid ff_asf_simple_index_header
const ff_asf_guid ff_asf_head2_guid
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
preferred ID for decoding MPEG audio layer 1, 2 or 3
const ff_asf_guid ff_asf_video_conceal_none
void av_log(void *avcl, int level, const char *fmt,...)
#define ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD
const char * name
Name of the codec implementation.
const AVCodecTag ff_codec_wav_tags[]
int flags
A combination of AV_PKT_FLAG values.
AVCodecContext * codec
Codec context associated with this stream.
static void put_guid(AVIOContext *s, const ff_asf_guid *g)
#define ASF_PPI_FLAG_MULTIPLE_PAYLOADS_PRESENT
unsigned int nb_streams
A list of all streams in the file.
#define CONFIG_LIBMP3LAME
int packet_timestamp_start
int seekable
A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable.
int bit_rate
the average bitrate
int void avio_flush(AVIOContext *s)
const AVCodecTag ff_codec_bmp_tags[]
int width
picture width / height.
static void put_chunk(AVFormatContext *s, int type, int payload_length, int flags)
#define ASF_PACKET_ERROR_CORRECTION_FLAGS
const ff_asf_guid ff_asf_extended_content_header
internal header for RIFF based (de)muxers do NOT include this in end user applications ...
#define ASF_PAYLOAD_REPLICATED_DATA_LENGTH
const ff_asf_guid ff_asf_my_guid
#define ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE
#define ASF_PACKET_ERROR_CORRECTION_DATA_SIZE
uint8_t packet_buf[PACKET_SIZE]
#define ASF_PPI_PROPERTY_FLAGS
enum AVMediaType codec_type
const ff_asf_guid ff_asf_file_header
#define SINGLE_PAYLOAD_DATA_LENGTH
AVIOContext * pb
I/O context.
const ff_asf_guid ff_asf_video_stream
void avio_w8(AVIOContext *s, int b)
main external API structure.
unsigned int codec_tag
fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
#define AV_DICT_IGNORE_SUFFIX
static void flush_packet(AVFormatContext *s)
#define FF_ARRAY_ELEMS(a)
const ff_asf_guid ff_asf_stream_header
static const AVCodecTag codec_asf_bmp_tags[]
int avio_put_str16le(AVIOContext *s, const char *str)
Convert an UTF-8 string to UTF-16LE and write it.
const AVMetadataConv ff_asf_metadata_conv[]
static int put_payload_parsing_info(AVFormatContext *s, unsigned int sendtime, unsigned int duration, int nb_payloads, int padsize)
static int64_t put_header(AVIOContext *pb, const ff_asf_guid *g)
int64_t duration
in 100ns units
void ff_put_bmp_header(AVIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf)
#define ASF_INDEXED_INTERVAL
const ff_asf_guid ff_asf_comment_header
#define MULTI_PAYLOAD_CONSTANT
static void end_header(AVIOContext *pb, int64_t pos)
#define ASF_PL_FLAG_KEY_FRAME
int ffio_init_context(AVIOContext *s, unsigned char *buffer, int buffer_size, int write_flag, void *opaque, int(*read_packet)(void *opaque, uint8_t *buf, int buf_size), int(*write_packet)(void *opaque, uint8_t *buf, int buf_size), int64_t(*seek)(void *opaque, int64_t offset, int whence))
void * av_realloc(void *ptr, size_t size)
Allocate or reallocate a block of memory.
uint64_t nb_packets
how many packets are there in the file, invalid if broadcasting
int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc)
const ff_asf_guid ff_asf_audio_conceal_spread
const ff_asf_guid ff_asf_codec_comment1_header
static void put_frame(AVFormatContext *s, ASFStream *stream, AVStream *avst, int timestamp, const uint8_t *buf, int m_obj_size, int flags)
static int asf_write_header1(AVFormatContext *s, int64_t file_size, int64_t data_chunk_size)
void * priv_data
Format private data.
uint32_t nb_index_memory_alloc
static void write_header(FFV1Context *f)
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...
static int asf_write_stream_header(AVFormatContext *s)
static void put_str16(AVIOContext *s, const char *tag)
#define PACKET_HEADER_MIN_SIZE
unsigned char multi_payloads_present
This structure stores compressed data.
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...