33 #define ASF_INDEXED_INTERVAL 10000000 34 #define ASF_INDEX_BLOCK (1<<9) 35 #define ASF_PAYLOADS_PER_PACKET 63 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_HEADERS \ 176 (PACKET_HEADER_MIN_SIZE + \ 177 PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD) 179 #define MULTI_PAYLOAD_HEADERS \ 180 (PACKET_HEADER_MIN_SIZE + \ 182 2 * PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS) 184 #define DATA_HEADER_SIZE 50 186 #define PACKET_SIZE_MAX 65536 187 #define PACKET_SIZE_MIN 100 212 uint16_t stream_language_index;
215 uint32_t palette[256];
226 const char *languages[128];
234 int packet_size_left;
241 uint64_t data_offset;
261 #define PREROLL_TIME 3100 301 int payload_length,
int flags)
307 length = payload_length + 8;
321 t = ti * INT64_C(10);
322 t += INT64_C(116444736000000000);
332 if (pres_time <= asf->index_ptr[i].send_time)
338 return send_time / 10000;
386 int64_t data_chunk_size)
391 int header_size, n, extra_size, extra_size2, wav_extra_size;
392 int has_title, has_aspect_ratio = 0;
395 int64_t header_offset, cur_pos, hpos;
398 int audio_language_counts[128] = { 0 };
409 has_title = tags[0] || tags[1] || tags[2] || tags[3] || tags[4];
437 if (!strcmp(asf->
languages[i], iso6391lang)) {
489 int nb_audio_languages = 0;
500 if (audio_language_counts[i])
501 nb_audio_languages++;
503 if (nb_audio_languages > 1) {
508 if (audio_language_counts[i]) {
541 if (has_aspect_ratio) {
600 if (metadata_count) {
629 extra_size = 18 + wav_extra_size;
635 extra_size = 0x33 + wav_extra_size;
661 if (wavsize != extra_size) {
710 desc =
"Windows Media Audio V8";
712 desc = codec_desc ? codec_desc->
name :
NULL;
749 header_size = cur_pos - header_offset;
753 avio_seek(pb, header_offset - 10 - 30, SEEK_SET);
755 avio_seek(pb, header_offset - 2 - 30, SEEK_SET);
760 header_size += 24 + 6;
761 avio_seek(pb, header_offset - 14, SEEK_SET);
826 unsigned sendtime,
unsigned duration,
827 int nb_payloads,
int padsize)
876 int packet_hdr_size, packet_filled_size;
890 av_assert0(packet_hdr_size <= asf->packet_size_left);
906 int64_t presentation_time,
int m_obj_size,
907 int m_obj_offset,
int payload_len,
int flags)
929 avio_wl32(pb, (uint32_t) presentation_time);
937 int64_t timestamp,
const uint8_t *buf,
938 int m_obj_size,
int flags)
941 int m_obj_offset, payload_len, frag_len1;
944 while (m_obj_offset < m_obj_size) {
945 payload_len = m_obj_size - m_obj_offset;
952 frag_len1 = multi_payload_constant - 1;
963 if (frag_len1 < payload_len &&
975 if (payload_len > frag_len1)
976 payload_len = frag_len1;
977 else if (payload_len == (frag_len1 - 1))
978 payload_len = frag_len1 - 2;
981 m_obj_size, m_obj_offset, payload_len, flags);
994 m_obj_offset += payload_len;
1008 uint32_t packet_number, uint16_t packet_count,
1009 uint64_t packet_offset)
1055 uint32_t packet_number;
1087 uint16_t packet_count = asf->
nb_packets - packet_number;
1088 ret =
update_index(s, start_sec, packet_number, packet_count, offset);
1098 uint16_t
max, uint32_t count)
1104 avio_wl64(pb, 24 + 16 + 8 + 4 + 4 + (4 + 2) * count);
1109 for (i = 0; i < count; i++) {
1120 int64_t file_size, data_size;
1153 #if CONFIG_ASF_MUXER 1154 static const AVClass asf_muxer_class = {
1164 .mime_type =
"video/x-ms-asf",
1165 .extensions =
"asf,wmv,wma",
1176 .priv_class = &asf_muxer_class,
1180 #if CONFIG_ASF_STREAM_MUXER 1181 static const AVClass asf_stream_muxer_class = {
1189 .
name =
"asf_stream",
1191 .mime_type =
"video/x-ms-asf",
1192 .extensions =
"asf,wmv,wma",
1203 .priv_class = &asf_stream_muxer_class,
unsigned int nb_chapters
Number of chapters in AVChapter array.
const ff_asf_guid ff_asf_header
static void write_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost, int unqueue)
void avio_wl16(AVIOContext *s, unsigned int val)
static int asf_write_markers(AVFormatContext *s)
#define ASF_PAYLOAD_FLAGS
const char * languages[128]
static void skip_to_key(AVFormatContext *s)
int avio_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer)
Return the written size and a pointer to the buffer.
void ff_put_bmp_header(AVIOContext *pb, AVCodecParameters *par, int for_asf, int ignore_extradata)
int ff_put_wav_header(AVFormatContext *s, AVIOContext *pb, AVCodecParameters *par, int flags)
Write WAVEFORMAT header structure.
const ff_asf_guid ff_asf_codec_comment_header
const ff_asf_guid ff_asf_metadata_header
#define PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD
void ff_put_guid(AVIOContext *s, const ff_asf_guid *g)
#define LIBAVUTIL_VERSION_INT
unsigned char * buf_ptr
Current position in the buffer.
unsigned int packet_nb_payloads
#define PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS
AVRational sample_aspect_ratio
Video only.
static int asf_write_packet(AVFormatContext *s, AVPacket *pkt)
uint64_t data_offset
beginning of the first data packet
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
static int asf_write_index(AVFormatContext *s, const ASFIndex *index, uint16_t max, uint32_t count)
uint32_t next_packet_number
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.
const char * av_default_item_name(void *ptr)
Return the context name.
unsigned char * buffer
Start of the buffer.
static int put_payload_parsing_info(AVFormatContext *s, unsigned sendtime, unsigned duration, int nb_payloads, int padsize)
static int asf_write_trailer(AVFormatContext *s)
uint16_t next_packet_count
int avio_open_dyn_buf(AVIOContext **s)
Open a write only memory stream.
This struct describes the properties of an encoded stream.
#define SINGLE_PAYLOAD_HEADERS
const ff_asf_guid ff_asf_reserved_4
const ff_asf_guid ff_asf_data_header
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
#define av_assert0(cond)
assert() equivalent, that is always enabled.
void avio_wl32(AVIOContext *s, unsigned int val)
const ff_asf_guid ff_asf_audio_stream
const ff_asf_guid ff_asf_mutex_language
A point in the output bytestream where the underlying AVIOContext might flush the buffer depending on...
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
static int asf_write_header(AVFormatContext *s)
ASFStream streams[128]
it's max number and it's not that big
void avio_write_marker(AVIOContext *s, int64_t time, enum AVIODataMarkerType type)
Mark the written bytestream as a specific type.
AVStream ** streams
A list of all streams in the file.
AVDictionaryEntry * av_dict_get(const AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags)
Get a dictionary entry with matching key.
int64_t max_interleave_delta
Maximum buffering duration for interleaving.
#define ASF_PPI_LENGTH_TYPE_FLAGS
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
void avio_write(AVIOContext *s, const unsigned char *buf, int size)
#define AV_OPT_FLAG_ENCODING_PARAM
a generic parameter which can be set by the user for muxing or encoding
int64_t bit_rate
The average bitrate of the encoded data (in bits per second).
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
void avio_wl64(AVIOContext *s, uint64_t val)
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
#define i(width, name, range_min, range_max)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
AVDictionary * metadata
Metadata that applies to the whole file.
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
static void put_payload_header(AVFormatContext *s, ASFStream *stream, int64_t presentation_time, int m_obj_size, int m_obj_offset, int payload_len, int flags)
const char * ff_convert_lang_to(const char *lang, enum AVLangCodespace target_codespace)
Convert a language code to a target codespace.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
int64_t packet_timestamp_start
enum AVMediaType codec_type
General type of the encoded data.
const ff_asf_guid ff_asf_video_conceal_none
static const AVOption asf_options[]
simple assert() macros that are a bit more flexible than ISO C assert().
#define ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD
static const uint8_t offset[127][2]
const AVCodecTag ff_codec_wav_tags[]
int flags
A combination of AV_PKT_FLAG values.
int extradata_size
Size of the extradata content in bytes.
#define MULTI_PAYLOAD_HEADERS
int av_reallocp_array(void *ptr, size_t nmemb, size_t size)
Allocate, reallocate, or free an array through a pointer to a pointer.
#define ASF_PPI_FLAG_MULTIPLE_PAYLOADS_PRESENT
unsigned int nb_streams
Number of elements in AVFormatContext.streams.
int block_align
Audio only.
int seekable
A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable.
const AVCodecTag ff_codec_bmp_tags[]
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
static int write_trailer(AVFormatContext *s1)
static int32_t get_send_time(ASFContext *asf, int64_t pres_time, uint64_t *offset)
#define ASF_PAYLOADS_PER_PACKET
internal header for RIFF based (de)muxers do NOT include this in end user applications ...
#define ASF_PAYLOAD_REPLICATED_DATA_LENGTH
int avoid_negative_ts
Avoid negative timestamps during muxing.
const ff_asf_guid ff_asf_my_guid
#define FF_ARRAY_ELEMS(a)
#define ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE
const ff_asf_guid ff_asf_extended_stream_properties_object
#define AVIO_SEEKABLE_NORMAL
Seeking works like for a local file.
#define ASF_PACKET_ERROR_CORRECTION_DATA_SIZE
#define ASF_PPI_PROPERTY_FLAGS
const ff_asf_guid ff_asf_file_header
AVIOContext * pb
I/O context.
const ff_asf_guid ff_asf_video_stream
int64_t packet_timestamp_end
void avio_w8(AVIOContext *s, int b)
uint16_t stream_language_index
static void flush_packet(AVFormatContext *s)
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
Describe the class of an AVClass context structure.
Rational number (pair of numerator and denominator).
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[]
const char * name
Name of the codec described by this descriptor.
static int64_t put_header(AVIOContext *pb, const ff_asf_guid *g)
int64_t duration
in 100ns units
const ff_asf_guid ff_asf_group_mutual_exclusion_object
static int64_t unix_to_file_time(int64_t ti)
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
static void put_frame(AVFormatContext *s, ASFStream *stream, AVStream *avst, int64_t timestamp, const uint8_t *buf, int m_obj_size, int flags)
#define flags(name, subs,...)
const ff_asf_guid ff_asf_language_guid
static void end_header(AVIOContext *pb, int64_t pos)
uint8_t packet_buf[PACKET_SIZE_MAX]
#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
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 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)
const AVCodecDescriptor * avcodec_descriptor_get(enum AVCodecID id)
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
Return first entry in a dictionary whose first part corresponds to the search key, ignoring the suffix of the found key string.
AVCodecParameters * codecpar
Codec parameters associated with this stream.
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
#define PACKET_HEADER_MIN_SIZE
const ff_asf_guid ff_asf_marker_header
static int update_index(AVFormatContext *s, int start_sec, uint32_t packet_number, uint16_t packet_count, uint64_t packet_offset)
unsigned char multi_payloads_present
#define MKTAG(a, b, c, d)
static double val(void *priv, double ch)
This structure stores compressed data.
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
uint64_t next_packet_offset
3-char terminological language codes as per ISO-IEC 639-2
#define AV_NOPTS_VALUE
Undefined timestamp value.
#define FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX
Tell ff_put_wav_header() to use WAVEFORMATEX even for PCM codecs.