#include "libavutil/avstring.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/dict.h"
#include "avformat.h"
#include "internal.h"
#include "riff.h"
#include "rm.h"
Go to the source code of this file.
Data Structures | |
struct | RMStream |
struct | RMDemuxContext |
Defines | |
#define | DEINT_ID_GENR MKTAG('g', 'e', 'n', 'r') |
interleaving for Cooker/Atrac | |
#define | DEINT_ID_INT0 MKTAG('I', 'n', 't', '0') |
no interleaving needed | |
#define | DEINT_ID_INT4 MKTAG('I', 'n', 't', '4') |
interleaving for 28.8 | |
#define | DEINT_ID_SIPR MKTAG('s', 'i', 'p', 'r') |
interleaving for Sipro | |
#define | DEINT_ID_VBRF MKTAG('v', 'b', 'r', 'f') |
VBR case for AAC. | |
#define | DEINT_ID_VBRS MKTAG('v', 'b', 'r', 's') |
VBR case for AAC. | |
#define | RAW_PACKET_SIZE 1000 |
Functions | |
static void | get_strl (AVIOContext *pb, char *buf, int buf_size, int len) |
static void | get_str8 (AVIOContext *pb, char *buf, int buf_size) |
static int | rm_read_extradata (AVIOContext *pb, AVCodecContext *avctx, unsigned size) |
static void | rm_read_metadata (AVFormatContext *s, AVIOContext *pb, int wide) |
RMStream * | ff_rm_alloc_rmstream (void) |
void | ff_rm_free_rmstream (RMStream *rms) |
static int | rm_read_audio_stream_info (AVFormatContext *s, AVIOContext *pb, AVStream *st, RMStream *ast, int read_all) |
int | ff_rm_read_mdpr_codecdata (AVFormatContext *s, AVIOContext *pb, AVStream *st, RMStream *rst, int codec_data_size) |
Read the MDPR chunk, which contains stream-specific codec initialization parameters. | |
static int | rm_read_index (AVFormatContext *s) |
this function assumes that the demuxer has already seeked to the start of the INDX chunk, and will bail out if not. | |
static int | rm_read_header_old (AVFormatContext *s) |
static int | rm_read_header (AVFormatContext *s, AVFormatParameters *ap) |
static int | get_num (AVIOContext *pb, int *len) |
static int | sync (AVFormatContext *s, int64_t *timestamp, int *flags, int *stream_index, int64_t *pos) |
static int | rm_assemble_video_frame (AVFormatContext *s, AVIOContext *pb, RMDemuxContext *rm, RMStream *vst, AVPacket *pkt, int len, int *pseq, int64_t *timestamp) |
static void | rm_ac3_swap_bytes (AVStream *st, AVPacket *pkt) |
void | ff_rm_reorder_sipr_data (uint8_t *buf, int sub_packet_h, int framesize) |
Perform 4-bit block reordering for SIPR data. | |
int | ff_rm_parse_packet (AVFormatContext *s, AVIOContext *pb, AVStream *st, RMStream *ast, int len, AVPacket *pkt, int *seq, int flags, int64_t timestamp) |
Parse one rm-stream packet from the input bytestream. | |
int | ff_rm_retrieve_cache (AVFormatContext *s, AVIOContext *pb, AVStream *st, RMStream *ast, AVPacket *pkt) |
Retrieve one cached packet from the rm-context. | |
static int | rm_read_packet (AVFormatContext *s, AVPacket *pkt) |
static int | rm_read_close (AVFormatContext *s) |
static int | rm_probe (AVProbeData *p) |
static int64_t | rm_read_dts (AVFormatContext *s, int stream_index, int64_t *ppos, int64_t pos_limit) |
Variables | |
static const unsigned char | sipr_swaps [38][2] |
const unsigned char | ff_sipr_subpk_size [4] = { 29, 19, 37, 20 } |
AVInputFormat | ff_rm_demuxer |
AVInputFormat | ff_rdt_demuxer |
#define DEINT_ID_GENR MKTAG('g', 'e', 'n', 'r') |
interleaving for Cooker/Atrac
Definition at line 30 of file rmdec.c.
Referenced by ff_rm_parse_packet(), and rm_read_audio_stream_info().
#define DEINT_ID_INT0 MKTAG('I', 'n', 't', '0') |
no interleaving needed
Definition at line 31 of file rmdec.c.
Referenced by rm_read_audio_stream_info().
#define DEINT_ID_INT4 MKTAG('I', 'n', 't', '4') |
interleaving for 28.8
Definition at line 32 of file rmdec.c.
Referenced by ff_rm_parse_packet(), and rm_read_audio_stream_info().
#define DEINT_ID_SIPR MKTAG('s', 'i', 'p', 'r') |
interleaving for Sipro
Definition at line 33 of file rmdec.c.
Referenced by ff_rm_parse_packet(), and rm_read_audio_stream_info().
VBR case for AAC.
Definition at line 34 of file rmdec.c.
Referenced by ff_rm_parse_packet(), ff_rm_retrieve_cache(), and rm_read_audio_stream_info().
#define DEINT_ID_VBRS MKTAG('v', 'b', 'r', 's') |
VBR case for AAC.
Definition at line 35 of file rmdec.c.
Referenced by ff_rm_parse_packet(), ff_rm_retrieve_cache(), and rm_read_audio_stream_info().
#define RAW_PACKET_SIZE 1000 |
Definition at line 548 of file rmdec.c.
Referenced by rm_read_packet().
Definition at line 121 of file rmdec.c.
Referenced by rdt_parse_sdp_line(), rm_read_header(), and rm_read_header_old().
void ff_rm_free_rmstream | ( | RMStream * | rms | ) |
Definition at line 128 of file rmdec.c.
Referenced by rdt_free_context(), and rm_read_close().
int ff_rm_parse_packet | ( | AVFormatContext * | s, |
AVIOContext * | pb, | ||
AVStream * | st, | ||
RMStream * | rst, | ||
int | len, | ||
AVPacket * | pkt, | ||
int * | seq, | ||
int | flags, | ||
int64_t | ts | ||
) |
Parse one rm-stream packet from the input bytestream.
s | context containing RMContext and AVIOContext for stream reading |
pb | context to read the data from |
st | stream to which the packet to be read belongs |
rst | Real-specific stream information |
len | packet length to read from the input |
pkt | packet location to store the parsed packet data |
seq | pointer to an integer containing the sequence number, may be updated |
flags | the packet flags |
ts | timestamp of the current packet |
Definition at line 744 of file rmdec.c.
Referenced by rdt_parse_packet(), and rm_read_packet().
int ff_rm_read_mdpr_codecdata | ( | AVFormatContext * | s, |
AVIOContext * | pb, | ||
AVStream * | st, | ||
RMStream * | rst, | ||
int | codec_data_size | ||
) |
Read the MDPR chunk, which contains stream-specific codec initialization parameters.
s | context containing RMContext and AVIOContext for stream reading |
pb | context to read the data from |
st | the stream that the MDPR chunk belongs to and where to store the parameters read from the chunk into |
rst | real-specific stream information |
codec_data_size | size of the MDPR chunk |
Definition at line 298 of file rmdec.c.
Referenced by rdt_load_mdpr(), and rm_read_header().
void ff_rm_reorder_sipr_data | ( | uint8_t * | buf, |
int | sub_packet_h, | ||
int | framesize | ||
) |
Perform 4-bit block reordering for SIPR data.
Definition at line 721 of file rmdec.c.
Referenced by ff_rm_parse_packet(), and matroska_parse_block().
int ff_rm_retrieve_cache | ( | AVFormatContext * | s, |
AVIOContext * | pb, | ||
AVStream * | st, | ||
RMStream * | rst, | ||
AVPacket * | pkt | ||
) |
Retrieve one cached packet from the rm-context.
The real container can store several packets (as interpreted by the codec) in a single container packet, which means the demuxer holds some back when the first container packet is parsed and returned. The result is that rm->audio_pkt_cnt is a positive number, the amount of cached packets. Using this function, each of those packets can be retrieved sequentially.
s | context containing RMContext and AVIOContext for stream reading |
pb | context to read the data from |
st | stream that this packet belongs to |
rst | Real-specific stream information |
pkt | location to store the packet data |
Definition at line 834 of file rmdec.c.
Referenced by rdt_parse_packet(), and rm_read_packet().
static int get_num | ( | AVIOContext * | pb, |
int * | len | ||
) | [static] |
Definition at line 531 of file rmdec.c.
Referenced by rm_assemble_video_frame().
static void get_str8 | ( | AVIOContext * | pb, |
char * | buf, | ||
int | buf_size | ||
) | [static] |
Definition at line 91 of file rmdec.c.
Referenced by rm_read_audio_stream_info(), and rm_read_header().
static void get_strl | ( | AVIOContext * | pb, |
char * | buf, | ||
int | buf_size, | ||
int | len | ||
) | [inline, static] |
Definition at line 77 of file rmdec.c.
Referenced by get_str8(), and rm_read_metadata().
static void rm_ac3_swap_bytes | ( | AVStream * | st, |
AVPacket * | pkt | ||
) | [inline, static] |
Definition at line 703 of file rmdec.c.
Referenced by ff_rm_parse_packet().
static int rm_assemble_video_frame | ( | AVFormatContext * | s, |
AVIOContext * | pb, | ||
RMDemuxContext * | rm, | ||
RMStream * | vst, | ||
AVPacket * | pkt, | ||
int | len, | ||
int * | pseq, | ||
int64_t * | timestamp | ||
) | [static] |
Definition at line 618 of file rmdec.c.
Referenced by ff_rm_parse_packet().
static int rm_probe | ( | AVProbeData * | p | ) | [static] |
static int rm_read_audio_stream_info | ( | AVFormatContext * | s, |
AVIOContext * | pb, | ||
AVStream * | st, | ||
RMStream * | ast, | ||
int | read_all | ||
) | [static] |
Definition at line 133 of file rmdec.c.
Referenced by ff_rm_read_mdpr_codecdata(), and rm_read_header_old().
static int rm_read_close | ( | AVFormatContext * | s | ) | [static] |
static int64_t rm_read_dts | ( | AVFormatContext * | s, |
int | stream_index, | ||
int64_t * | ppos, | ||
int64_t | pos_limit | ||
) | [static] |
static int rm_read_extradata | ( | AVIOContext * | pb, |
AVCodecContext * | avctx, | ||
unsigned | size | ||
) | [static] |
Definition at line 96 of file rmdec.c.
Referenced by ff_rm_read_mdpr_codecdata(), and rm_read_audio_stream_info().
static int rm_read_header | ( | AVFormatContext * | s, |
AVFormatParameters * | ap | ||
) | [static] |
static int rm_read_header_old | ( | AVFormatContext * | s | ) | [static] |
Definition at line 413 of file rmdec.c.
Referenced by rm_read_header().
static int rm_read_index | ( | AVFormatContext * | s | ) | [static] |
this function assumes that the demuxer has already seeked to the start of the INDX chunk, and will bail out if not.
Definition at line 357 of file rmdec.c.
Referenced by rm_read_header().
static void rm_read_metadata | ( | AVFormatContext * | s, |
AVIOContext * | pb, | ||
int | wide | ||
) | [static] |
Definition at line 110 of file rmdec.c.
Referenced by rm_read_audio_stream_info(), and rm_read_header().
static int rm_read_packet | ( | AVFormatContext * | s, |
AVPacket * | pkt | ||
) | [static] |
static int sync | ( | AVFormatContext * | s, |
int64_t * | timestamp, | ||
int * | flags, | ||
int * | stream_index, | ||
int64_t * | pos | ||
) | [static] |
Definition at line 550 of file rmdec.c.
Referenced by rm_read_dts(), and rm_read_packet().
{ .name = "rdt", .long_name = NULL_IF_CONFIG_SMALL("RDT demuxer"), .priv_data_size = sizeof(RMDemuxContext), .read_close = rm_read_close, .flags = AVFMT_NOFILE, }
Definition at line 990 of file rmdec.c.
Referenced by rdt_new_context().
{ .name = "rm", .long_name = NULL_IF_CONFIG_SMALL("RealMedia format"), .priv_data_size = sizeof(RMDemuxContext), .read_probe = rm_probe, .read_header = rm_read_header, .read_packet = rm_read_packet, .read_close = rm_read_close, .read_timestamp = rm_read_dts, }
const unsigned char ff_sipr_subpk_size[4] = { 29, 19, 37, 20 } |
Definition at line 75 of file rmdec.c.
Referenced by matroska_read_header(), and rm_read_audio_stream_info().
const unsigned char sipr_swaps[38][2] [static] |
{ { 0, 63 }, { 1, 22 }, { 2, 44 }, { 3, 90 }, { 5, 81 }, { 7, 31 }, { 8, 86 }, { 9, 58 }, { 10, 36 }, { 12, 68 }, { 13, 39 }, { 14, 73 }, { 15, 53 }, { 16, 69 }, { 17, 57 }, { 19, 88 }, { 20, 34 }, { 21, 71 }, { 24, 46 }, { 25, 94 }, { 26, 54 }, { 28, 75 }, { 29, 50 }, { 32, 70 }, { 33, 92 }, { 35, 74 }, { 38, 85 }, { 40, 56 }, { 42, 87 }, { 43, 65 }, { 45, 59 }, { 48, 79 }, { 49, 93 }, { 51, 89 }, { 55, 95 }, { 61, 76 }, { 67, 83 }, { 77, 80 } }
Definition at line 62 of file rmdec.c.
Referenced by ff_rm_reorder_sipr_data().