22 #include "libavutil/dict.h"
23 #include "libavutil/mathematics.h"
34 #define ASF_INDEXED_INTERVAL 10000000
35 #define ASF_INDEX_BLOCK 600
37 #define ASF_PACKET_ERROR_CORRECTION_DATA_SIZE 0x2
38 #define ASF_PACKET_ERROR_CORRECTION_FLAGS \
39 (ASF_PACKET_FLAG_ERROR_CORRECTION_PRESENT | \
40 ASF_PACKET_ERROR_CORRECTION_DATA_SIZE)
42 #if (ASF_PACKET_ERROR_CORRECTION_FLAGS != 0)
43 # define ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE 1
45 # define ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE 0
48 #define ASF_PPI_PROPERTY_FLAGS \
49 (ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_BYTE | \
50 ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_DWORD | \
51 ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_BYTE | \
52 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
71 #if (ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_BYTE == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE))
72 # define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 1
74 #if (ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_WORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE))
75 # define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 2
77 #if (ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_DWORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE))
78 # define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 4
80 #ifndef ASF_PPI_PACKET_LENGTH_FIELD_SIZE
81 # define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 0
84 #if (ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PADDING_LENGTH_FIELD_SIZE))
85 # define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 1
87 #if (ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PADDING_LENGTH_FIELD_SIZE))
88 # define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 2
90 #if (ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_DWORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PADDING_LENGTH_FIELD_SIZE))
91 # define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 4
93 #ifndef ASF_PPI_PADDING_LENGTH_FIELD_SIZE
94 # define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 0
97 #if (ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_BYTE == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_REPLICATED_DATA_LENGTH_FIELD_SIZE))
98 # define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 1
100 #if (ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_WORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_REPLICATED_DATA_LENGTH_FIELD_SIZE))
101 # define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 2
103 #if (ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_DWORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_REPLICATED_DATA_LENGTH_FIELD_SIZE))
104 # define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 4
106 #ifndef ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE
107 # define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 0
110 #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))
111 # define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 1
113 #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))
114 # define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 2
116 #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))
117 # define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 4
119 #ifndef ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE
120 # define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 0
123 #if (ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_BYTE == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_SIZE))
124 # define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 1
126 #if (ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_WORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_SIZE))
127 # define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 2
129 #if (ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_DWORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_SIZE))
130 # define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 4
132 #ifndef ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE
133 # define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 0
136 #if (ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_BYTE == (ASF_PAYLOAD_FLAGS & ASF_PL_MASK_PAYLOAD_LENGTH_FIELD_SIZE))
137 # define ASF_PAYLOAD_LENGTH_FIELD_SIZE 1
139 #if (ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_WORD == (ASF_PAYLOAD_FLAGS & ASF_PL_MASK_PAYLOAD_LENGTH_FIELD_SIZE))
140 # define ASF_PAYLOAD_LENGTH_FIELD_SIZE 2
142 #ifndef ASF_PAYLOAD_LENGTH_FIELD_SIZE
143 # define ASF_PAYLOAD_LENGTH_FIELD_SIZE 0
146 #define PACKET_HEADER_MIN_SIZE \
147 (ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE + \
148 ASF_PACKET_ERROR_CORRECTION_DATA_SIZE + \
151 ASF_PPI_PACKET_LENGTH_FIELD_SIZE + \
152 ASF_PPI_SEQUENCE_FIELD_SIZE + \
153 ASF_PPI_PADDING_LENGTH_FIELD_SIZE + \
158 #define ASF_PAYLOAD_REPLICATED_DATA_LENGTH 0x08
160 #define PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD \
162 ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE + \
163 ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE + \
164 ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE + \
165 ASF_PAYLOAD_REPLICATED_DATA_LENGTH)
167 #define PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS \
169 ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE + \
170 ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE + \
171 ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE + \
172 ASF_PAYLOAD_REPLICATED_DATA_LENGTH + \
173 ASF_PAYLOAD_LENGTH_FIELD_SIZE)
175 #define SINGLE_PAYLOAD_DATA_LENGTH \
177 PACKET_HEADER_MIN_SIZE - \
178 PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD)
180 #define MULTI_PAYLOAD_CONSTANT \
182 PACKET_HEADER_MIN_SIZE - \
184 2 * PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS)
186 #define DATA_HEADER_SIZE 50
197 int packet_size_left;
204 uint64_t data_offset;
220 #define PREROLL_TIME 3100
224 assert(
sizeof(*g) == 16);
266 int payload_length,
int flags)
272 length = payload_length + 8;
286 t = ti * INT64_C(10000000);
287 t += INT64_C(116444736000000000);
297 if (pres_time <= asf->index_ptr[i].send_time)
303 return send_time / 10000;
351 int64_t data_chunk_size)
356 int header_size, n, extra_size, extra_size2, wav_extra_size, file_time;
360 int64_t header_offset, cur_pos, hpos;
373 has_title = tags[0] || tags[1] || tags[2] || tags[3] || tags[4];
439 if (metadata_count) {
468 extra_size = 18 + wav_extra_size;
474 extra_size = 0x33 + wav_extra_size;
500 if (wavsize != extra_size) {
549 desc =
"Windows Media Audio V8";
551 desc = codec_desc ? codec_desc->
name :
NULL;
588 header_size = cur_pos - header_offset;
592 avio_seek(pb, header_offset - 10 - 30, SEEK_SET);
594 avio_seek(pb, header_offset - 2 - 30, SEEK_SET);
599 header_size += 24 + 6;
600 avio_seek(pb, header_offset - 14, SEEK_SET);
657 unsigned sendtime,
unsigned duration,
658 int nb_payloads,
int padsize)
670 assert(padsize >= 0);
707 int packet_hdr_size, packet_filled_size;
722 assert(packet_hdr_size <= asf->packet_size_left);
737 int presentation_time,
int m_obj_size,
738 int m_obj_offset,
int payload_len,
int flags)
768 int timestamp,
const uint8_t *buf,
769 int m_obj_size,
int flags)
772 int m_obj_offset, payload_len, frag_len1;
775 while (m_obj_offset < m_obj_size) {
776 payload_len = m_obj_size - m_obj_offset;
793 if (frag_len1 < payload_len &&
800 if (payload_len > frag_len1)
801 payload_len = frag_len1;
802 else if (payload_len == (frag_len1 - 1))
803 payload_len = frag_len1 - 2;
806 m_obj_size, m_obj_offset, payload_len, flags);
819 m_obj_offset += payload_len;
837 int64_t packet_st, pts;
850 duration = pts * 10000;
859 start_sec = (int)(duration / INT64_C(10000000));
888 uint16_t max, uint32_t count)
894 avio_wl64(pb, 24 + 16 + 8 + 4 + 4 + (4 + 2) * count);
899 for (i = 0; i < count; i++) {
910 int64_t file_size, data_size;
939 .mime_type =
"video/x-ms-asf",
940 .extensions =
"asf,wmv,wma",
954 #if CONFIG_ASF_STREAM_MUXER
956 .
name =
"asf_stream",
958 .mime_type =
"video/x-ms-asf",
959 .extensions =
"asf,wmv,wma",
unsigned int nb_chapters
Number of chapters in AVChapter array.
const ff_asf_guid ff_asf_header
static int asf_write_markers(AVFormatContext *s)
#define ASF_PAYLOAD_FLAGS
const ff_asf_guid ff_asf_codec_comment_header
#define PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD
unsigned int packet_nb_payloads
static int64_t unix_to_file_time(int ti)
const char * name
Name of the codec described by this descriptor.
#define PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS
const AVCodecDescriptor * avcodec_descriptor_get(enum AVCodecID id)
static int asf_write_packet(AVFormatContext *s, AVPacket *pkt)
uint64_t data_offset
beginning of the first data packet
AVCodecContext * codec
Codec context associated with this stream.
int av_dict_count(const AVDictionary *m)
Get number of entries in dictionary.
static int put_payload_parsing_info(AVFormatContext *s, unsigned sendtime, unsigned duration, int nb_payloads, int padsize)
static int asf_write_trailer(AVFormatContext *s)
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 *ptr)
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_reserved_4
const ff_asf_guid ff_asf_data_header
unsigned char * buffer
Start of the buffer.
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 ASF_PPI_LENGTH_TYPE_FLAGS
int duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq) av_const
Rescale a 64-bit integer by 2 rational numbers.
static int asf_write_index(AVFormatContext *s, ASFIndex *index, uint16_t max, uint32_t count)
int av_reallocp_array(void *ptr, size_t nmemb, size_t size)
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
const ff_asf_guid ff_asf_simple_index_header
const ff_asf_guid ff_asf_head2_guid
void * priv_data
Format private data.
#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
#define ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD
const AVCodecTag ff_codec_wav_tags[]
int flags
A combination of AV_PKT_FLAG values.
static void put_guid(AVIOContext *s, const ff_asf_guid *g)
#define ASF_PPI_FLAG_MULTIPLE_PAYLOADS_PRESENT
unsigned int nb_streams
Number of elements in AVFormatContext.streams.
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
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
AVStream ** streams
A list of all streams in the file.
void * av_malloc(size_t size) av_malloc_attrib 1(1)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
static int32_t get_send_time(ASFContext *asf, int64_t pres_time, uint64_t *offset)
internal header for RIFF based (de)muxers do NOT include this in end user applications ...
#define FF_ARRAY_ELEMS(a)
#define ASF_PAYLOAD_REPLICATED_DATA_LENGTH
unsigned char * buf_ptr
Current position in the buffer.
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
const ff_asf_guid ff_asf_video_stream
main external API structure.
unsigned int codec_tag
fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
AVIOContext * pb
I/O context.
static void flush_packet(AVFormatContext *s)
rational number numerator/denominator
const ff_asf_guid ff_asf_stream_header
AVDictionary * metadata
Metadata that applies to the whole file.
static const AVCodecTag codec_asf_bmp_tags[]
const AVMetadataConv ff_asf_metadata_conv[]
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)
This struct describes the properties of a single codec described by an AVCodecID. ...
#define ASF_INDEXED_INTERVAL
const ff_asf_guid ff_asf_comment_header
#define MKTAG(a, b, c, d)
#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))
uint64_t nb_packets
how many packets are there in the file, invalid if broadcasting
int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc)
AVDictionaryEntry * av_dict_get(const AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags)
Get a dictionary entry with matching key.
const ff_asf_guid ff_asf_audio_conceal_spread
const ff_asf_guid ff_asf_codec_comment1_header
AVRational time_base
time base in which the start/end timestamps are specified
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)
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 AV_DICT_IGNORE_SUFFIX
#define PACKET_HEADER_MIN_SIZE
const ff_asf_guid ff_asf_marker_header
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...
#define AV_NOPTS_VALUE
Undefined timestamp value.