libavcodec/shorten.c File Reference
Shorten decoder.
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#include <limits.h>
#include "avcodec.h"
#include "get_bits.h"
#include "golomb.h"
Go to the source code of this file.
|
Data Structures |
| struct | ShortenContext |
Defines |
| #define | DEBUG |
| #define | MAX_CHANNELS 8 |
| #define | MAX_BLOCKSIZE 65535 |
| #define | OUT_BUFFER_SIZE 16384 |
| #define | ULONGSIZE 2 |
| #define | WAVE_FORMAT_PCM 0x0001 |
| #define | DEFAULT_BLOCK_SIZE 256 |
| #define | TYPESIZE 4 |
| #define | CHANSIZE 0 |
| #define | LPCQSIZE 2 |
| #define | ENERGYSIZE 3 |
| #define | BITSHIFTSIZE 2 |
| #define | TYPE_S16HL 3 |
| #define | TYPE_S16LH 5 |
| #define | NWRAP 3 |
| #define | NSKIPSIZE 1 |
| #define | LPCQUANT 5 |
| #define | V2LPCQOFFSET (1 << LPCQUANT) |
| #define | FNSIZE 2 |
| #define | FN_DIFF0 0 |
| #define | FN_DIFF1 1 |
| #define | FN_DIFF2 2 |
| #define | FN_DIFF3 3 |
| #define | FN_QUIT 4 |
| #define | FN_BLOCKSIZE 5 |
| #define | FN_BITSHIFT 6 |
| #define | FN_QLPC 7 |
| #define | FN_ZERO 8 |
| #define | FN_VERBATIM 9 |
| #define | VERBATIM_CKSIZE_SIZE 5 |
| #define | VERBATIM_BYTE_SIZE 8 |
| #define | CANONICAL_HEADER_SIZE 44 |
Functions |
| static av_cold int | shorten_decode_init (AVCodecContext *avctx) |
| static int | allocate_buffers (ShortenContext *s) |
| static unsigned int | get_uint (ShortenContext *s, int k) |
| static void | fix_bitshift (ShortenContext *s, int32_t *buffer) |
| static void | init_offset (ShortenContext *s) |
| static int | get_le32 (GetBitContext *gb) |
| static short | get_le16 (GetBitContext *gb) |
| static int | decode_wave_header (AVCodecContext *avctx, uint8_t *header, int header_size) |
| static int16_t * | interleave_buffer (int16_t *samples, int nchan, int blocksize, int32_t **buffer) |
| static void | decode_subframe_lpc (ShortenContext *s, int channel, int residual_size, int pred_order) |
| static int | shorten_decode_frame (AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt) |
| static av_cold int | shorten_decode_close (AVCodecContext *avctx) |
| static void | shorten_flush (AVCodecContext *avctx) |
Variables |
| AVCodec | shorten_decoder |
Detailed Description
Shorten decoder.
- Author:
- Jeff Muizelaar
Definition in file shorten.c.
Define Documentation
| #define CANONICAL_HEADER_SIZE 44 |
| #define DEFAULT_BLOCK_SIZE 256 |
| #define MAX_BLOCKSIZE 65535 |
| #define OUT_BUFFER_SIZE 16384 |
| #define V2LPCQOFFSET (1 << LPCQUANT) |
| #define VERBATIM_BYTE_SIZE 8 |
| #define VERBATIM_CKSIZE_SIZE 5 |
| #define WAVE_FORMAT_PCM 0x0001 |
Function Documentation
| static void decode_subframe_lpc |
( |
ShortenContext * |
s, |
|
|
int |
channel, |
|
|
int |
residual_size, |
|
|
int |
pred_order | |
|
) |
| | [static] |
| static int decode_wave_header |
( |
AVCodecContext * |
avctx, |
|
|
uint8_t * |
header, |
|
|
int |
header_size | |
|
) |
| | [static] |
| static void fix_bitshift |
( |
ShortenContext * |
s, |
|
|
int32_t * |
buffer | |
|
) |
| | [static] |
Definition at line 199 of file shorten.c.
Referenced by ape_read_header(), asf_build_simple_index(), asf_read_header(), avi_read_header(), avs_read_header(), avs_read_packet(), cin_read_file_header(), cin_read_frame_header(), decode_wave_header(), ff_asf_get_packet(), ffm_read_header(), get_fourcc(), get_le24(), get_le32(), get_str16_nolen(), get_swf_tag(), get_value(), mpc8_get_chunk_header(), msnwc_tcp_read_packet(), mtv_read_header(), nc_read_packet(), nsv_parse_NSVs_header(), nsv_read_chunk(), process_video_header_mdec(), qcp_read_header(), read_braindead_odml_indx(), read_frame(), read_header(), read_packet(), read_ttag(), rl2_read_header(), seq_init_frame_buffers(), seq_parse_frame_data(), siff_parse_soun(), siff_parse_vbv1(), siff_read_packet(), sol_read_header(), swf_read_header(), swf_read_packet(), tmv_read_header(), tta_read_header(), vid_read_header(), vid_read_packet(), voc_get_packet(), voc_read_header(), wv_read_block_header(), xa_read_header(), and yop_read_header().
Definition at line 194 of file shorten.c.
Referenced by aiff_read_header(), apc_read_header(), ape_read_header(), ape_tag_read_field(), asf_build_simple_index(), asf_read_frame_header(), asf_read_header(), au_read_header(), avi_load_index(), avi_read_header(), avi_read_idx1(), avi_read_info(), avs_read_header(), bfi_read_header(), bfi_read_packet(), cin_read_file_header(), cin_read_frame_header(), decode_wave_header(), dxa_read_header(), ea_read_packet(), ff_ape_parse_tag(), ff_asf_get_packet(), ff_rm_read_mdpr_codecdata(), ffm_read_header(), flac_read_header(), fourxm_read_packet(), get_aiff_header(), get_codec_data(), get_fourcc(), get_le64(), get_riff(), get_swf_tag(), get_tag(), get_value(), guess_ni_flag(), gxf_header(), gxf_read_index(), idcin_read_header(), idcin_read_packet(), iff_read_header(), mmf_read_header(), mov_read_cmov(), mov_read_default(), mov_read_dref(), mov_read_hdlr(), mov_read_meta(), mov_read_stsd(), mov_read_udta_string(), mov_read_wide(), mpc8_read_header(), mpc_read_header(), mpc_read_packet(), msnwc_tcp_read_packet(), mtv_read_header(), nsv_parse_NSVf_header(), nsv_parse_NSVs_header(), nsv_read_chunk(), nuv_header(), ogg_read_page(), process_audio_header_eacs(), process_audio_header_sead(), process_ea_header(), process_video_header_vp6(), qcp_read_header(), qcp_read_packet(), rdt_load_mdpr(), read_atom(), read_braindead_odml_indx(), read_header(), read_packet(), rl2_read_header(), rm_read_header(), rm_read_index(), rpl_read_packet(), siff_parse_soun(), siff_parse_vbv1(), siff_read_header(), siff_read_packet(), smacker_read_header(), smacker_read_packet(), sol_read_header(), sox_read_header(), swf_read_header(), tmv_read_header(), tta_read_header(), txd_read_packet(), vc1t_read_header(), vc1t_read_packet(), voc_get_packet(), vqf_read_header(), wc3_read_header(), wc3_read_packet(), wv_read_block_header(), and xa_read_header().
| static unsigned int get_uint |
( |
ShortenContext * |
s, |
|
|
int |
k | |
|
) |
| | [inline, static] |
| static int16_t* interleave_buffer |
( |
int16_t * |
samples, |
|
|
int |
nchan, |
|
|
int |
blocksize, |
|
|
int32_t ** |
buffer | |
|
) |
| | [static] |
| static av_cold int shorten_decode_close |
( |
AVCodecContext * |
avctx |
) |
[static] |
| static int shorten_decode_frame |
( |
AVCodecContext * |
avctx, |
|
|
void * |
data, |
|
|
int * |
data_size, |
|
|
AVPacket * |
avpkt | |
|
) |
| | [static] |
| static av_cold int shorten_decode_init |
( |
AVCodecContext * |
avctx |
) |
[static] |
Variable Documentation
Initial value:
{
"shorten",
AVMEDIA_TYPE_AUDIO,
CODEC_ID_SHORTEN,
sizeof(ShortenContext),
shorten_decode_init,
NULL,
shorten_decode_close,
shorten_decode_frame,
.flush= shorten_flush,
.long_name= NULL_IF_CONFIG_SMALL("Shorten"),
}
Definition at line 566 of file shorten.c.
