media/ffvpx/libavcodec/bitstream_filters.c

   1 /*
   2  * This file is part of FFmpeg.
   3  *
   4  * FFmpeg 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  * FFmpeg 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 FFmpeg; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17  */
  18
  19 #include <stdint.h>
  20 #include <string.h>
  21
  22 #include "libavutil/log.h"
  23
  24 #include "bsf.h"
  25 #include "bsf_internal.h"
  26
  27 extern const FFBitStreamFilter ff_aac_adtstoasc_bsf;
  28 extern const FFBitStreamFilter ff_av1_frame_merge_bsf;
  29 extern const FFBitStreamFilter ff_av1_frame_split_bsf;
  30 extern const FFBitStreamFilter ff_av1_metadata_bsf;
  31 extern const FFBitStreamFilter ff_chomp_bsf;
  32 extern const FFBitStreamFilter ff_dump_extradata_bsf;
  33 extern const FFBitStreamFilter ff_dca_core_bsf;
  34 extern const FFBitStreamFilter ff_dts2pts_bsf;
  35 extern const FFBitStreamFilter ff_dv_error_marker_bsf;
  36 extern const FFBitStreamFilter ff_eac3_core_bsf;
  37 extern const FFBitStreamFilter ff_extract_extradata_bsf;
  38 extern const FFBitStreamFilter ff_filter_units_bsf;
  39 extern const FFBitStreamFilter ff_h264_metadata_bsf;
  40 extern const FFBitStreamFilter ff_h264_mp4toannexb_bsf;
  41 extern const FFBitStreamFilter ff_h264_redundant_pps_bsf;
  42 extern const FFBitStreamFilter ff_hapqa_extract_bsf;
  43 extern const FFBitStreamFilter ff_hevc_metadata_bsf;
  44 extern const FFBitStreamFilter ff_hevc_mp4toannexb_bsf;
  45 extern const FFBitStreamFilter ff_imx_dump_header_bsf;
  46 extern const FFBitStreamFilter ff_media100_to_mjpegb_bsf;
  47 extern const FFBitStreamFilter ff_mjpeg2jpeg_bsf;
  48 extern const FFBitStreamFilter ff_mjpega_dump_header_bsf;
  49 extern const FFBitStreamFilter ff_mpeg2_metadata_bsf;
  50 extern const FFBitStreamFilter ff_mpeg4_unpack_bframes_bsf;
  51 extern const FFBitStreamFilter ff_mov2textsub_bsf;
  52 extern const FFBitStreamFilter ff_noise_bsf;
  53 extern const FFBitStreamFilter ff_null_bsf;
  54 extern const FFBitStreamFilter ff_opus_metadata_bsf;
  55 extern const FFBitStreamFilter ff_pcm_rechunk_bsf;
  56 extern const FFBitStreamFilter ff_pgs_frame_merge_bsf;
  57 extern const FFBitStreamFilter ff_prores_metadata_bsf;
  58 extern const FFBitStreamFilter ff_remove_extradata_bsf;
  59 extern const FFBitStreamFilter ff_setts_bsf;
  60 extern const FFBitStreamFilter ff_showinfo_bsf;
  61 extern const FFBitStreamFilter ff_text2movsub_bsf;
  62 extern const FFBitStreamFilter ff_trace_headers_bsf;
  63 extern const FFBitStreamFilter ff_truehd_core_bsf;
  64 extern const FFBitStreamFilter ff_vp9_metadata_bsf;
  65 extern const FFBitStreamFilter ff_vp9_raw_reorder_bsf;
  66 extern const FFBitStreamFilter ff_vp9_superframe_bsf;
  67 extern const FFBitStreamFilter ff_vp9_superframe_split_bsf;
  68 extern const FFBitStreamFilter ff_vvc_metadata_bsf;
  69 extern const FFBitStreamFilter ff_vvc_mp4toannexb_bsf;
  70 extern const FFBitStreamFilter ff_evc_frame_merge_bsf;
  71
  72 #include "libavcodec/bsf_list.c"
  73
  74 const AVBitStreamFilter *av_bsf_iterate(void **opaque)
  75 {
  76     uintptr_t i = (uintptr_t) * opaque;
  77     const FFBitStreamFilter *f = bitstream_filters[i];
  78
  79     if (f) {
  80         *opaque = (void *)(i + 1);
  81         return &f->p;
  82     }
  83     return NULL;
  84 }
  85
  86 const AVBitStreamFilter *av_bsf_get_by_name(const char *name)
  87 {
  88     const AVBitStreamFilter *f = NULL;
  89     void *i = 0;
  90
  91     if (!name)
  92         return NULL;
  93
  94     while ((f = av_bsf_iterate(&i))) {
  95         if (!strcmp(f->name, name))
  96             return f;
  97     }
  98
  99     return NULL;
 100 }
 101
 102 const AVClass *ff_bsf_child_class_iterate(void **opaque)
 103 {
 104     const AVBitStreamFilter *f;
 105
 106     /* find next filter with priv options */
 107     while ((f = av_bsf_iterate(opaque))) {
 108         if (f->priv_class)
 109             return f->priv_class;
 110     }
 111     return NULL;
 112 }