/*

  * This file is part of FFmpeg.

  *

  * FFmpeg is free software; you can redistribute it and/or

  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *

  * FFmpeg is distributed in the hope that it will be useful,

  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public

  * License along with FFmpeg; if not, write to the Free Software

  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #include "config.h"
 
 #include "libavutil/common.h"
 #include "libavutil/log.h"
 
 #include "avcodec.h"
 #include "bsf.h"
 
 extern const AVBitStreamFilter ff_aac_adtstoasc_bsf;
 extern const AVBitStreamFilter ff_chomp_bsf;
 extern const AVBitStreamFilter ff_dump_extradata_bsf;

 extern const AVBitStreamFilter ff_dca_core_bsf;

 extern const AVBitStreamFilter ff_eac3_core_bsf;

 extern const AVBitStreamFilter ff_extract_extradata_bsf;

 extern const AVBitStreamFilter ff_filter_units_bsf;

 extern const AVBitStreamFilter ff_h264_metadata_bsf;

 extern const AVBitStreamFilter ff_h264_mp4toannexb_bsf;

 extern const AVBitStreamFilter ff_h264_redundant_pps_bsf;

 extern const AVBitStreamFilter ff_hapqa_extract_bsf;

 extern const AVBitStreamFilter ff_hevc_metadata_bsf;

 extern const AVBitStreamFilter ff_hevc_mp4toannexb_bsf;
 extern const AVBitStreamFilter ff_imx_dump_header_bsf;
 extern const AVBitStreamFilter ff_mjpeg2jpeg_bsf;
 extern const AVBitStreamFilter ff_mjpega_dump_header_bsf;

 extern const AVBitStreamFilter ff_mp3_header_decompress_bsf;

 extern const AVBitStreamFilter ff_mpeg2_metadata_bsf;

 extern const AVBitStreamFilter ff_mpeg4_unpack_bframes_bsf;

 extern const AVBitStreamFilter ff_mov2textsub_bsf;
 extern const AVBitStreamFilter ff_noise_bsf;

 extern const AVBitStreamFilter ff_null_bsf;

 extern const AVBitStreamFilter ff_remove_extradata_bsf;

 extern const AVBitStreamFilter ff_text2movsub_bsf;

 extern const AVBitStreamFilter ff_trace_headers_bsf;

 extern const AVBitStreamFilter ff_vp9_raw_reorder_bsf;

 extern const AVBitStreamFilter ff_vp9_superframe_bsf;

 extern const AVBitStreamFilter ff_vp9_superframe_split_bsf;

 #include "libavcodec/bsf_list.c"

 const AVBitStreamFilter *av_bsf_iterate(void **opaque)

 {
     uintptr_t i = (uintptr_t)*opaque;
     const AVBitStreamFilter *f = bitstream_filters[i];
 
     if (f)
         *opaque = (void*)(i + 1);
 
     return f;
 }
 

 #if FF_API_NEXT
 const AVBitStreamFilter *av_bsf_next(void **opaque) {
     return av_bsf_iterate(opaque);
 }
 #endif
 

 const AVBitStreamFilter *av_bsf_get_by_name(const char *name)
 {

     const AVBitStreamFilter *f = NULL;
     void *i = 0;

     if (!name)
         return NULL;
 

     while ((f = av_bsf_iterate(&i))) {

         if (!strcmp(f->name, name))
             return f;
     }
 
     return NULL;
 }
 
 const AVClass *ff_bsf_child_class_next(const AVClass *prev)
 {

     const AVBitStreamFilter *f = NULL;
     void *i = 0;

 
     /* find the filter that corresponds to prev */

     while (prev && (f = av_bsf_iterate(&i))) {
         if (f->priv_class == prev) {

             break;
         }
     }
 
     /* find next filter with priv options */

     while ((f = av_bsf_iterate(&i))) {
         if (f->priv_class)
             return f->priv_class;
     }

     return NULL;
 }