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 "config.h" 20 21 #include "libavutil/common.h" 22 #include "libavutil/log.h" 23 24 #include "avcodec.h" 25 #include "bsf_internal.h" 26 27 extern const AVBitStreamFilter ff_aac_adtstoasc_bsf; 28 extern const AVBitStreamFilter ff_av1_frame_merge_bsf; 29 extern const AVBitStreamFilter ff_av1_frame_split_bsf; 30 extern const AVBitStreamFilter ff_av1_metadata_bsf; 31 extern const AVBitStreamFilter ff_chomp_bsf; 32 extern const AVBitStreamFilter ff_dump_extradata_bsf; 33 extern const AVBitStreamFilter ff_dca_core_bsf; 34 extern const AVBitStreamFilter ff_eac3_core_bsf; 35 extern const AVBitStreamFilter ff_extract_extradata_bsf; 36 extern const AVBitStreamFilter ff_filter_units_bsf; 37 extern const AVBitStreamFilter ff_h264_metadata_bsf; 38 extern const AVBitStreamFilter ff_h264_mp4toannexb_bsf; 39 extern const AVBitStreamFilter ff_h264_redundant_pps_bsf; 40 extern const AVBitStreamFilter ff_hapqa_extract_bsf; 41 extern const AVBitStreamFilter ff_hevc_metadata_bsf; 42 extern const AVBitStreamFilter ff_hevc_mp4toannexb_bsf; 43 extern const AVBitStreamFilter ff_imx_dump_header_bsf; 44 extern const AVBitStreamFilter ff_mjpeg2jpeg_bsf; 45 extern const AVBitStreamFilter ff_mjpega_dump_header_bsf; 46 extern const AVBitStreamFilter ff_mp3_header_decompress_bsf; 47 extern const AVBitStreamFilter ff_mpeg2_metadata_bsf; 48 extern const AVBitStreamFilter ff_mpeg4_unpack_bframes_bsf; 49 extern const AVBitStreamFilter ff_mov2textsub_bsf; 50 extern const AVBitStreamFilter ff_noise_bsf; 51 extern const AVBitStreamFilter ff_null_bsf; 52 extern const AVBitStreamFilter ff_opus_metadata_bsf; 53 extern const AVBitStreamFilter ff_pcm_rechunk_bsf; 54 extern const AVBitStreamFilter ff_prores_metadata_bsf; 55 extern const AVBitStreamFilter ff_remove_extradata_bsf; 56 extern const AVBitStreamFilter ff_setts_bsf; 57 extern const AVBitStreamFilter ff_text2movsub_bsf; 58 extern const AVBitStreamFilter ff_trace_headers_bsf; 59 extern const AVBitStreamFilter ff_truehd_core_bsf; 60 extern const AVBitStreamFilter ff_vp9_metadata_bsf; 61 extern const AVBitStreamFilter ff_vp9_raw_reorder_bsf; 62 extern const AVBitStreamFilter ff_vp9_superframe_bsf; 63 extern const AVBitStreamFilter ff_vp9_superframe_split_bsf; 64 65 #include "libavcodec/bsf_list.c" 66 av_bsf_iterate(void ** opaque)67const AVBitStreamFilter *av_bsf_iterate(void **opaque) 68 { 69 uintptr_t i = (uintptr_t)*opaque; 70 const AVBitStreamFilter *f = bitstream_filters[i]; 71 72 if (f) 73 *opaque = (void*)(i + 1); 74 75 return f; 76 } 77 78 #if FF_API_NEXT av_bsf_next(void ** opaque)79const AVBitStreamFilter *av_bsf_next(void **opaque) { 80 return av_bsf_iterate(opaque); 81 } 82 #endif 83 av_bsf_get_by_name(const char * name)84const AVBitStreamFilter *av_bsf_get_by_name(const char *name) 85 { 86 const AVBitStreamFilter *f = NULL; 87 void *i = 0; 88 89 if (!name) 90 return NULL; 91 92 while ((f = av_bsf_iterate(&i))) { 93 if (!strcmp(f->name, name)) 94 return f; 95 } 96 97 return NULL; 98 } 99 100 #if FF_API_CHILD_CLASS_NEXT ff_bsf_child_class_next(const AVClass * prev)101const AVClass *ff_bsf_child_class_next(const AVClass *prev) 102 { 103 const AVBitStreamFilter *f = NULL; 104 void *i = 0; 105 106 /* find the filter that corresponds to prev */ 107 while (prev && (f = av_bsf_iterate(&i))) { 108 if (f->priv_class == prev) { 109 break; 110 } 111 } 112 113 /* find next filter with priv options */ 114 while ((f = av_bsf_iterate(&i))) { 115 if (f->priv_class) 116 return f->priv_class; 117 } 118 return NULL; 119 } 120 #endif 121 ff_bsf_child_class_iterate(void ** opaque)122const AVClass *ff_bsf_child_class_iterate(void **opaque) 123 { 124 const AVBitStreamFilter *f; 125 126 /* find next filter with priv options */ 127 while ((f = av_bsf_iterate(opaque))) { 128 if (f->priv_class) 129 return f->priv_class; 130 } 131 return NULL; 132 } 133