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Data Structures | Functions | Variables
bsf.c File Reference
#include <string.h>
#include "libavutil/log.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavutil/avstring.h"
#include "libavutil/bprint.h"
#include "avcodec.h"
#include "bsf.h"

Go to the source code of this file.

Data Structures

struct  AVBSFInternal
struct  BSFListContext
struct  AVBSFList
 Structure for chain/list of bitstream filters. More...


void av_bsf_free (AVBSFContext **pctx)
 Free a bitstream filter context and everything associated with it; write NULL into the supplied pointer. More...
static voidbsf_child_next (void *obj, void *prev)
const AVClassav_bsf_get_class (void)
 Get the AVClass for AVBSFContext. More...
int av_bsf_alloc (const AVBitStreamFilter *filter, AVBSFContext **pctx)
 Allocate a context for a given bitstream filter. More...
int av_bsf_init (AVBSFContext *ctx)
 Prepare the filter for use, after all the parameters and options have been set. More...
int av_bsf_send_packet (AVBSFContext *ctx, AVPacket *pkt)
 Submit a packet for filtering. More...
int av_bsf_receive_packet (AVBSFContext *ctx, AVPacket *pkt)
 Retrieve a filtered packet. More...
int ff_bsf_get_packet (AVBSFContext *ctx, AVPacket **pkt)
 Called by the bitstream filters to get the next packet for filtering. More...
int ff_bsf_get_packet_ref (AVBSFContext *ctx, AVPacket *pkt)
 Called by bitstream filters to get packet for filtering. More...
static int bsf_list_init (AVBSFContext *bsf)
static int bsf_list_filter (AVBSFContext *bsf, AVPacket *out)
static void bsf_list_close (AVBSFContext *bsf)
static const char * bsf_list_item_name (void *ctx)
AVBSFListav_bsf_list_alloc (void)
 Allocate empty list of bitstream filters. More...
void av_bsf_list_free (AVBSFList **lst)
 Free list of bitstream filters. More...
int av_bsf_list_append (AVBSFList *lst, AVBSFContext *bsf)
 Append bitstream filter to the list of bitstream filters. More...
int av_bsf_list_append2 (AVBSFList *lst, const char *bsf_name, AVDictionary **options)
 Construct new bitstream filter context given it's name and options and append it to the list of bitstream filters. More...
int av_bsf_list_finalize (AVBSFList **lst, AVBSFContext **bsf)
 Finalize list of bitstream filters. More...
static int bsf_parse_single (const char *str, AVBSFList *bsf_lst)
int av_bsf_list_parse_str (const char *str, AVBSFContext **bsf_lst)
 Parse string describing list of bitstream filters and create single AVBSFContext describing the whole chain of bitstream filters. More...
int av_bsf_get_null_filter (AVBSFContext **bsf)
 Get null/pass-through bitstream filter. More...


static const AVClass bsf_class
static const AVClass bsf_list_class
const AVBitStreamFilter ff_list_bsf

Function Documentation

static void* bsf_child_next ( void obj,
void prev 

Definition at line 60 of file bsf.c.

int ff_bsf_get_packet ( AVBSFContext ctx,
AVPacket **  pkt 
int ff_bsf_get_packet_ref ( AVBSFContext ctx,
AVPacket pkt 

Called by bitstream filters to get packet for filtering.

The reference to packet is moved to provided packet structure.

ctxpointer to AVBSFContext of filter
pktpointer to packet to move reference to
0>= on success, negative AVERROR in case of failure

Definition at line 223 of file bsf.c.

Referenced by aac_adtstoasc_filter(), bsf_list_filter(), chomp_filter(), dca_core_filter(), extract_extradata_filter(), hapqa_extract(), mov2textsub(), null_filter(), remove_extradata(), and trace_headers().

static int bsf_list_init ( AVBSFContext bsf)

Definition at line 252 of file bsf.c.

static int bsf_list_filter ( AVBSFContext bsf,
AVPacket out 

Definition at line 281 of file bsf.c.

static void bsf_list_close ( AVBSFContext bsf)

Definition at line 338 of file bsf.c.

static const char* bsf_list_item_name ( void ctx)

Definition at line 349 of file bsf.c.

static int bsf_parse_single ( const char *  str,
AVBSFList bsf_lst 

Definition at line 472 of file bsf.c.

Referenced by av_bsf_list_parse_str().

Variable Documentation

const AVClass bsf_class
Initial value:
= {
.class_name = "AVBSFContext",
.item_name = av_default_item_name,
.child_next = bsf_child_next,
.child_class_next = ff_bsf_child_class_next,
static void * bsf_child_next(void *obj, void *prev)
Definition: bsf.c:60
Definition: version.h:85
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:191
const AVClass * ff_bsf_child_class_next(const AVClass *prev)

Definition at line 68 of file bsf.c.

Referenced by av_bsf_alloc(), and av_bsf_get_class().

const AVClass bsf_list_class
Initial value:
= {
.class_name = "bsf_list",
.item_name = bsf_list_item_name,
Definition: version.h:85
static const char * bsf_list_item_name(void *ctx)
Definition: bsf.c:349

Definition at line 374 of file bsf.c.

const AVBitStreamFilter ff_list_bsf
Initial value:
= {
.name = "bsf_list",
.priv_data_size = sizeof(BSFListContext),
.priv_class = &bsf_list_class,
.close = bsf_list_close,
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
static const AVClass bsf_list_class
Definition: bsf.c:374
static void filter(int16_t *output, ptrdiff_t out_stride, int16_t *low, ptrdiff_t low_stride, int16_t *high, ptrdiff_t high_stride, int len, int clip)
Definition: cfhd.c:97
static int bsf_list_filter(AVBSFContext *bsf, AVPacket *out)
Definition: bsf.c:281
static void bsf_list_close(AVBSFContext *bsf)
Definition: bsf.c:338
static int bsf_list_init(AVBSFContext *bsf)
Definition: bsf.c:252

Definition at line 380 of file bsf.c.