diff options
Diffstat (limited to 'libavformat/avformat.c')
-rw-r--r-- | libavformat/avformat.c | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/libavformat/avformat.c b/libavformat/avformat.c new file mode 100644 index 0000000000..88acae018e --- /dev/null +++ b/libavformat/avformat.c @@ -0,0 +1,130 @@ +/* + * Various functions used by both muxers and demuxers + * Copyright (c) 2000, 2001, 2002 Fabrice Bellard + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "libavutil/avassert.h" +#include "libavutil/mem.h" +#include "libavutil/opt.h" +#include "libavcodec/avcodec.h" +#include "libavcodec/bsf.h" +#include "libavcodec/packet_internal.h" +#include "avformat.h" +#include "demux.h" +#include "internal.h" + +void ff_free_stream(AVStream **pst) +{ + AVStream *st = *pst; + FFStream *const sti = ffstream(st); + + if (!st) + return; + + for (int i = 0; i < st->nb_side_data; i++) + av_freep(&st->side_data[i].data); + av_freep(&st->side_data); + + if (st->attached_pic.data) + av_packet_unref(&st->attached_pic); + + av_parser_close(sti->parser); + avcodec_free_context(&sti->avctx); + av_bsf_free(&sti->bsfc); + av_freep(&sti->priv_pts); + av_freep(&sti->index_entries); + av_freep(&sti->probe_data.buf); + + av_bsf_free(&sti->extract_extradata.bsf); + + if (sti->info) { + av_freep(&sti->info->duration_error); + av_freep(&sti->info); + } + + av_dict_free(&st->metadata); + avcodec_parameters_free(&st->codecpar); + av_freep(&st->priv_data); + + av_freep(pst); +} + +void ff_remove_stream(AVFormatContext *s, AVStream *st) +{ + av_assert0(s->nb_streams>0); + av_assert0(s->streams[ s->nb_streams - 1 ] == st); + + ff_free_stream(&s->streams[ --s->nb_streams ]); +} + +/* XXX: suppress the packet queue */ +void ff_flush_packet_queue(AVFormatContext *s) +{ + FFFormatContext *const si = ffformatcontext(s); + avpriv_packet_list_free(&si->parse_queue); + avpriv_packet_list_free(&si->packet_buffer); + avpriv_packet_list_free(&si->raw_packet_buffer); + + si->raw_packet_buffer_size = 0; +} + +void avformat_free_context(AVFormatContext *s) +{ + FFFormatContext *si; + + if (!s) + return; + si = ffformatcontext(s); + + if (s->oformat && s->oformat->deinit && si->initialized) + s->oformat->deinit(s); + + av_opt_free(s); + if (s->iformat && s->iformat->priv_class && s->priv_data) + av_opt_free(s->priv_data); + if (s->oformat && s->oformat->priv_class && s->priv_data) + av_opt_free(s->priv_data); + + for (unsigned i = 0; i < s->nb_streams; i++) + ff_free_stream(&s->streams[i]); + s->nb_streams = 0; + + for (unsigned i = 0; i < s->nb_programs; i++) { + av_dict_free(&s->programs[i]->metadata); + av_freep(&s->programs[i]->stream_index); + av_freep(&s->programs[i]); + } + s->nb_programs = 0; + + av_freep(&s->programs); + av_freep(&s->priv_data); + while (s->nb_chapters--) { + av_dict_free(&s->chapters[s->nb_chapters]->metadata); + av_freep(&s->chapters[s->nb_chapters]); + } + av_freep(&s->chapters); + av_dict_free(&s->metadata); + av_dict_free(&si->id3v2_meta); + av_packet_free(&si->pkt); + av_packet_free(&si->parse_pkt); + av_freep(&s->streams); + ff_flush_packet_queue(s); + av_freep(&s->url); + av_free(s); +} |