Libav
bitstream_filters.c
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1 /*
2  * This file is part of Libav.
3  *
4  * Libav is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * Libav is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with Libav; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #include "config.h"
20 
21 #include "libavutil/common.h"
22 #include "libavutil/log.h"
23 
24 #include "avcodec.h"
25 #include "bsf.h"
26 
28 extern const AVBitStreamFilter ff_chomp_bsf;
37 extern const AVBitStreamFilter ff_noise_bsf;
39 
40 #include "libavcodec/bsf_list.c"
41 
42 const AVBitStreamFilter *av_bsf_next(void **opaque)
43 {
44  uintptr_t i = (uintptr_t)*opaque;
46 
47  if (f)
48  *opaque = (void*)(i + 1);
49 
50  return f;
51 }
52 
54 {
55  int i;
56 
57  for (i = 0; bitstream_filters[i]; i++) {
59  if (!strcmp(f->name, name))
60  return f;
61  }
62 
63  return NULL;
64 }
65 
67 {
68  int i;
69 
70  /* find the filter that corresponds to prev */
71  for (i = 0; prev && bitstream_filters[i]; i++) {
72  if (bitstream_filters[i]->priv_class == prev) {
73  i++;
74  break;
75  }
76  }
77 
78  /* find next filter with priv options */
79  for (; bitstream_filters[i]; i++)
80  if (bitstream_filters[i]->priv_class)
81  return bitstream_filters[i]->priv_class;
82  return NULL;
83 }
const AVBitStreamFilter * av_bsf_get_by_name(const char *name)
const AVBitStreamFilter ff_mjpega_dump_header_bsf
const char * name
Definition: avcodec.h:5037
const AVBitStreamFilter ff_h264_mp4toannexb_bsf
const AVBitStreamFilter * av_bsf_next(void **opaque)
Iterate over all registered bitstream filters.
const AVClass * ff_bsf_child_class_next(const AVClass *prev)
const char * name
Definition: qsvenc.c:44
const AVBitStreamFilter ff_remove_extradata_bsf
const AVBitStreamFilter ff_text2movsub_bsf
Definition: movsub_bsf.c:60
NULL
Definition: eval.c:55
const AVBitStreamFilter ff_hevc_mp4toannexb_bsf
static const AVBitStreamFilter * bitstream_filters[]
Definition: bsf_list.c:1
Libavcodec external API header.
Describe the class of an AVClass context structure.
Definition: log.h:34
const AVBitStreamFilter ff_mov2textsub_bsf
Definition: movsub_bsf.c:96
const AVBitStreamFilter ff_imx_dump_header_bsf
common internal and external API header
const AVBitStreamFilter ff_mjpeg2jpeg_bsf
const AVBitStreamFilter ff_chomp_bsf
This filter removes a string of NULL bytes from the end of a packet.
Definition: chomp_bsf.c:47
const AVBitStreamFilter ff_noise_bsf
Definition: noise_bsf.c:83
const AVBitStreamFilter ff_aac_adtstoasc_bsf
const AVBitStreamFilter ff_dump_extradata_bsf