mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-12 19:18:44 +02:00
b92e14147f
Starting with an h264 implementation. Can be extended to support other codecs. A few caveats: - OpenGOP streams are currently not supported. The firt packet must be an IDR frame. - In some streams, a few frames at the end may not get a reordered PTS when they reference frames past EOS. The code added to derive timestamps from previous frames needs to extended. Addresses ticket #502. Signed-off-by: James Almer <jamrial@gmail.com>
109 lines
3.7 KiB
C
109 lines
3.7 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_mjpeg2jpeg_bsf;
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extern const FFBitStreamFilter ff_mjpega_dump_header_bsf;
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extern const FFBitStreamFilter ff_mp3_header_decompress_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_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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#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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