mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
1e98cc4787
This BSF is supposed to be used in conjunction with mp3_header_compress,
which has been removed more than ten years ago in commit
c6080d8900. It mangled the headers
by removing the CRC field as well as fields that are supposed
to stay constant for the entirety of a stream (which are put into
extradata). This made these files unplayable; they need to be
decompressed with the BSF first (which does not happen automatically).
Even in this case the CRC does not get restored.
I am not aware that such compressed files exist at all; therefore
this commit removes the BSF completely.
Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
113 lines
3.9 KiB
C
113 lines
3.9 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdint.h>
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#include <string.h>
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#include "libavutil/log.h"
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#include "bsf.h"
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#include "bsf_internal.h"
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extern const FFBitStreamFilter ff_aac_adtstoasc_bsf;
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extern const FFBitStreamFilter ff_av1_frame_merge_bsf;
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extern const FFBitStreamFilter ff_av1_frame_split_bsf;
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extern const FFBitStreamFilter ff_av1_metadata_bsf;
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extern const FFBitStreamFilter ff_chomp_bsf;
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extern const FFBitStreamFilter ff_dump_extradata_bsf;
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extern const FFBitStreamFilter ff_dca_core_bsf;
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extern const FFBitStreamFilter ff_dts2pts_bsf;
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extern const FFBitStreamFilter ff_dv_error_marker_bsf;
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extern const FFBitStreamFilter ff_eac3_core_bsf;
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extern const FFBitStreamFilter ff_extract_extradata_bsf;
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extern const FFBitStreamFilter ff_filter_units_bsf;
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extern const FFBitStreamFilter ff_h264_metadata_bsf;
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extern const FFBitStreamFilter ff_h264_mp4toannexb_bsf;
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extern const FFBitStreamFilter ff_h264_redundant_pps_bsf;
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extern const FFBitStreamFilter ff_hapqa_extract_bsf;
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extern const FFBitStreamFilter ff_hevc_metadata_bsf;
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extern const FFBitStreamFilter ff_hevc_mp4toannexb_bsf;
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extern const FFBitStreamFilter ff_imx_dump_header_bsf;
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extern const FFBitStreamFilter ff_media100_to_mjpegb_bsf;
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extern const FFBitStreamFilter ff_mjpeg2jpeg_bsf;
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extern const FFBitStreamFilter ff_mjpega_dump_header_bsf;
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extern const FFBitStreamFilter ff_mpeg2_metadata_bsf;
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extern const FFBitStreamFilter ff_mpeg4_unpack_bframes_bsf;
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extern const FFBitStreamFilter ff_mov2textsub_bsf;
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extern const FFBitStreamFilter ff_noise_bsf;
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extern const FFBitStreamFilter ff_null_bsf;
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extern const FFBitStreamFilter ff_opus_metadata_bsf;
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extern const FFBitStreamFilter ff_pcm_rechunk_bsf;
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extern const FFBitStreamFilter ff_pgs_frame_merge_bsf;
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extern const FFBitStreamFilter ff_prores_metadata_bsf;
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extern const FFBitStreamFilter ff_remove_extradata_bsf;
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extern const FFBitStreamFilter ff_setts_bsf;
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extern const FFBitStreamFilter ff_showinfo_bsf;
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extern const FFBitStreamFilter ff_text2movsub_bsf;
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extern const FFBitStreamFilter ff_trace_headers_bsf;
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extern const FFBitStreamFilter ff_truehd_core_bsf;
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extern const FFBitStreamFilter ff_vp9_metadata_bsf;
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extern const FFBitStreamFilter ff_vp9_raw_reorder_bsf;
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extern const FFBitStreamFilter ff_vp9_superframe_bsf;
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extern const FFBitStreamFilter ff_vp9_superframe_split_bsf;
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extern const FFBitStreamFilter ff_vvc_metadata_bsf;
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extern const FFBitStreamFilter ff_vvc_mp4toannexb_bsf;
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extern const FFBitStreamFilter ff_evc_frame_merge_bsf;
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#include "libavcodec/bsf_list.c"
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const AVBitStreamFilter *av_bsf_iterate(void **opaque)
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{
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uintptr_t i = (uintptr_t) * opaque;
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const FFBitStreamFilter *f = bitstream_filters[i];
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if (f) {
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*opaque = (void *)(i + 1);
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return &f->p;
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}
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return NULL;
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}
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const AVBitStreamFilter *av_bsf_get_by_name(const char *name)
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{
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const AVBitStreamFilter *f = NULL;
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void *i = 0;
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if (!name)
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return NULL;
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while ((f = av_bsf_iterate(&i))) {
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if (!strcmp(f->name, name))
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return f;
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}
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return NULL;
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}
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const AVClass *ff_bsf_child_class_iterate(void **opaque)
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{
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const AVBitStreamFilter *f;
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/* find next filter with priv options */
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while ((f = av_bsf_iterate(opaque))) {
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if (f->priv_class)
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return f->priv_class;
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}
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return NULL;
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}
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