mirror of https://github.com/FFmpeg/FFmpeg.git
This file will contain the AVFormatContext-specific parts that are used by both demuxers and muxers. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>release/5.1
Andreas Rheinhardt
3 years ago
parent
a085cfa654
commit
703318b350
3 changed files with 131 additions and 104 deletions
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/*
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* Various functions used by both muxers and demuxers |
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* Copyright (c) 2000, 2001, 2002 Fabrice Bellard |
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* |
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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 "libavutil/avassert.h" |
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#include "libavutil/mem.h" |
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#include "libavutil/opt.h" |
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#include "libavcodec/avcodec.h" |
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#include "libavcodec/bsf.h" |
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#include "libavcodec/packet_internal.h" |
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#include "avformat.h" |
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#include "demux.h" |
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#include "internal.h" |
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void ff_free_stream(AVStream **pst) |
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{ |
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AVStream *st = *pst; |
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FFStream *const sti = ffstream(st); |
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if (!st) |
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return; |
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for (int i = 0; i < st->nb_side_data; i++) |
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av_freep(&st->side_data[i].data); |
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av_freep(&st->side_data); |
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if (st->attached_pic.data) |
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av_packet_unref(&st->attached_pic); |
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av_parser_close(sti->parser); |
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avcodec_free_context(&sti->avctx); |
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av_bsf_free(&sti->bsfc); |
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av_freep(&sti->priv_pts); |
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av_freep(&sti->index_entries); |
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av_freep(&sti->probe_data.buf); |
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av_bsf_free(&sti->extract_extradata.bsf); |
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if (sti->info) { |
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av_freep(&sti->info->duration_error); |
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av_freep(&sti->info); |
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} |
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av_dict_free(&st->metadata); |
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avcodec_parameters_free(&st->codecpar); |
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av_freep(&st->priv_data); |
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av_freep(pst); |
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} |
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void ff_remove_stream(AVFormatContext *s, AVStream *st) |
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{ |
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av_assert0(s->nb_streams>0); |
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av_assert0(s->streams[ s->nb_streams - 1 ] == st); |
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ff_free_stream(&s->streams[ --s->nb_streams ]); |
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} |
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/* XXX: suppress the packet queue */ |
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void ff_flush_packet_queue(AVFormatContext *s) |
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{ |
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FFFormatContext *const si = ffformatcontext(s); |
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avpriv_packet_list_free(&si->parse_queue); |
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avpriv_packet_list_free(&si->packet_buffer); |
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avpriv_packet_list_free(&si->raw_packet_buffer); |
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si->raw_packet_buffer_size = 0; |
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} |
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void avformat_free_context(AVFormatContext *s) |
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{ |
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FFFormatContext *si; |
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if (!s) |
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return; |
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si = ffformatcontext(s); |
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if (s->oformat && s->oformat->deinit && si->initialized) |
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s->oformat->deinit(s); |
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av_opt_free(s); |
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if (s->iformat && s->iformat->priv_class && s->priv_data) |
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av_opt_free(s->priv_data); |
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if (s->oformat && s->oformat->priv_class && s->priv_data) |
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av_opt_free(s->priv_data); |
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for (unsigned i = 0; i < s->nb_streams; i++) |
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ff_free_stream(&s->streams[i]); |
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s->nb_streams = 0; |
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for (unsigned i = 0; i < s->nb_programs; i++) { |
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av_dict_free(&s->programs[i]->metadata); |
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av_freep(&s->programs[i]->stream_index); |
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av_freep(&s->programs[i]); |
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} |
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s->nb_programs = 0; |
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av_freep(&s->programs); |
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av_freep(&s->priv_data); |
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while (s->nb_chapters--) { |
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av_dict_free(&s->chapters[s->nb_chapters]->metadata); |
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av_freep(&s->chapters[s->nb_chapters]); |
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} |
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av_freep(&s->chapters); |
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av_dict_free(&s->metadata); |
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av_dict_free(&si->id3v2_meta); |
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av_packet_free(&si->pkt); |
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av_packet_free(&si->parse_pkt); |
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av_freep(&s->streams); |
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ff_flush_packet_queue(s); |
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av_freep(&s->url); |
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av_free(s); |
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} |
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