bitstream_filters.c (4084B)
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_dovi_rpu_bsf; 35 extern const FFBitStreamFilter ff_dts2pts_bsf; 36 extern const FFBitStreamFilter ff_dv_error_marker_bsf; 37 extern const FFBitStreamFilter ff_eac3_core_bsf; 38 extern const FFBitStreamFilter ff_evc_frame_merge_bsf; 39 extern const FFBitStreamFilter ff_extract_extradata_bsf; 40 extern const FFBitStreamFilter ff_filter_units_bsf; 41 extern const FFBitStreamFilter ff_h264_metadata_bsf; 42 extern const FFBitStreamFilter ff_h264_mp4toannexb_bsf; 43 extern const FFBitStreamFilter ff_h264_redundant_pps_bsf; 44 extern const FFBitStreamFilter ff_hapqa_extract_bsf; 45 extern const FFBitStreamFilter ff_hevc_metadata_bsf; 46 extern const FFBitStreamFilter ff_hevc_mp4toannexb_bsf; 47 extern const FFBitStreamFilter ff_imx_dump_header_bsf; 48 extern const FFBitStreamFilter ff_media100_to_mjpegb_bsf; 49 extern const FFBitStreamFilter ff_mjpeg2jpeg_bsf; 50 extern const FFBitStreamFilter ff_mjpega_dump_header_bsf; 51 extern const FFBitStreamFilter ff_mpeg2_metadata_bsf; 52 extern const FFBitStreamFilter ff_mpeg4_unpack_bframes_bsf; 53 extern const FFBitStreamFilter ff_mov2textsub_bsf; 54 extern const FFBitStreamFilter ff_noise_bsf; 55 extern const FFBitStreamFilter ff_null_bsf; 56 extern const FFBitStreamFilter ff_opus_metadata_bsf; 57 extern const FFBitStreamFilter ff_pcm_rechunk_bsf; 58 extern const FFBitStreamFilter ff_pgs_frame_merge_bsf; 59 extern const FFBitStreamFilter ff_prores_metadata_bsf; 60 extern const FFBitStreamFilter ff_remove_extradata_bsf; 61 extern const FFBitStreamFilter ff_setts_bsf; 62 extern const FFBitStreamFilter ff_showinfo_bsf; 63 extern const FFBitStreamFilter ff_text2movsub_bsf; 64 extern const FFBitStreamFilter ff_trace_headers_bsf; 65 extern const FFBitStreamFilter ff_truehd_core_bsf; 66 extern const FFBitStreamFilter ff_vp9_metadata_bsf; 67 extern const FFBitStreamFilter ff_vp9_raw_reorder_bsf; 68 extern const FFBitStreamFilter ff_vp9_superframe_bsf; 69 extern const FFBitStreamFilter ff_vp9_superframe_split_bsf; 70 extern const FFBitStreamFilter ff_vvc_metadata_bsf; 71 extern const FFBitStreamFilter ff_vvc_mp4toannexb_bsf; 72 73 #include "libavcodec/bsf_list.c" 74 75 const AVBitStreamFilter *av_bsf_iterate(void **opaque) 76 { 77 uintptr_t i = (uintptr_t) * opaque; 78 const FFBitStreamFilter *f = bitstream_filters[i]; 79 80 if (f) { 81 *opaque = (void *)(i + 1); 82 return &f->p; 83 } 84 return NULL; 85 } 86 87 const AVBitStreamFilter *av_bsf_get_by_name(const char *name) 88 { 89 const AVBitStreamFilter *f = NULL; 90 void *i = 0; 91 92 if (!name) 93 return NULL; 94 95 while ((f = av_bsf_iterate(&i))) { 96 if (!strcmp(f->name, name)) 97 return f; 98 } 99 100 return NULL; 101 } 102 103 const AVClass *ff_bsf_child_class_iterate(void **opaque) 104 { 105 const AVBitStreamFilter *f; 106 107 /* find next filter with priv options */ 108 while ((f = av_bsf_iterate(opaque))) { 109 if (f->priv_class) 110 return f->priv_class; 111 } 112 return NULL; 113 }