| Line | Branch | Exec | Source |
|---|---|---|---|
| 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 | /* | ||
| 20 | * APIs internal to the generic avformat layer. | ||
| 21 | * | ||
| 22 | * MUST NOT be included by individual muxers or demuxers. | ||
| 23 | */ | ||
| 24 | |||
| 25 | #ifndef AVFORMAT_AVFORMAT_INTERNAL_H | ||
| 26 | #define AVFORMAT_AVFORMAT_INTERNAL_H | ||
| 27 | |||
| 28 | #include <stdint.h> | ||
| 29 | |||
| 30 | #include "avformat.h" | ||
| 31 | #include "internal.h" | ||
| 32 | |||
| 33 | typedef struct FormatContextInternal { | ||
| 34 | FFFormatContext fc; | ||
| 35 | |||
| 36 | union { | ||
| 37 | // muxing only | ||
| 38 | struct { | ||
| 39 | /** | ||
| 40 | * Whether or not avformat_init_output has already been called | ||
| 41 | */ | ||
| 42 | int initialized; | ||
| 43 | |||
| 44 | /** | ||
| 45 | * Whether or not avformat_init_output fully initialized streams | ||
| 46 | */ | ||
| 47 | int streams_initialized; | ||
| 48 | |||
| 49 | |||
| 50 | /** | ||
| 51 | * Number of streams relevant for interleaving. | ||
| 52 | * Muxing only. | ||
| 53 | */ | ||
| 54 | int nb_interleaved_streams; | ||
| 55 | |||
| 56 | /** | ||
| 57 | * The interleavement function in use. Always set. | ||
| 58 | */ | ||
| 59 | int (*interleave_packet)(struct AVFormatContext *s, AVPacket *pkt, | ||
| 60 | int flush, int has_packet); | ||
| 61 | |||
| 62 | #if FF_API_COMPUTE_PKT_FIELDS2 | ||
| 63 | int missing_ts_warning; | ||
| 64 | #endif | ||
| 65 | }; | ||
| 66 | |||
| 67 | // demuxing only | ||
| 68 | struct { | ||
| 69 | /** | ||
| 70 | * Raw packets from the demuxer, prior to parsing and decoding. | ||
| 71 | * This buffer is used for buffering packets until the codec can | ||
| 72 | * be identified, as parsing cannot be done without knowing the | ||
| 73 | * codec. | ||
| 74 | */ | ||
| 75 | PacketList raw_packet_buffer; | ||
| 76 | |||
| 77 | /** | ||
| 78 | * Sum of the size of packets in raw_packet_buffer, in bytes. | ||
| 79 | */ | ||
| 80 | int raw_packet_buffer_size; | ||
| 81 | |||
| 82 | /** | ||
| 83 | * Packets split by the parser get queued here. | ||
| 84 | */ | ||
| 85 | PacketList parse_queue; | ||
| 86 | |||
| 87 | /** | ||
| 88 | * Contexts and child contexts do not contain a metadata option | ||
| 89 | */ | ||
| 90 | int metafree; | ||
| 91 | |||
| 92 | /** | ||
| 93 | * Set if chapter ids are strictly monotonic. | ||
| 94 | */ | ||
| 95 | int chapter_ids_monotonic; | ||
| 96 | }; | ||
| 97 | }; | ||
| 98 | |||
| 99 | #if FF_API_LAVF_SHORTEST | ||
| 100 | /** | ||
| 101 | * Timestamp of the end of the shortest stream. | ||
| 102 | */ | ||
| 103 | int64_t shortest_end; | ||
| 104 | #endif | ||
| 105 | } FormatContextInternal; | ||
| 106 | |||
| 107 | 5983778 | static av_always_inline FormatContextInternal *ff_fc_internal(AVFormatContext *s) | |
| 108 | { | ||
| 109 | 5983778 | return (FormatContextInternal*)s; | |
| 110 | } | ||
| 111 | |||
| 112 | #define RELATIVE_TS_BASE (INT64_MAX - (1LL << 48)) | ||
| 113 | |||
| 114 | 1661546 | static av_always_inline int is_relative(int64_t ts) | |
| 115 | { | ||
| 116 | 1661546 | return ts > (RELATIVE_TS_BASE - (1LL << 48)); | |
| 117 | } | ||
| 118 | |||
| 119 | /** | ||
| 120 | * Wrap a given time stamp, if there is an indication for an overflow | ||
| 121 | * | ||
| 122 | * @param st stream | ||
| 123 | * @param timestamp the time stamp to wrap | ||
| 124 | * @return resulting time stamp | ||
| 125 | */ | ||
| 126 | int64_t ff_wrap_timestamp(const AVStream *st, int64_t timestamp); | ||
| 127 | |||
| 128 | typedef struct FFStreamGroup { | ||
| 129 | /** | ||
| 130 | * The public context. | ||
| 131 | */ | ||
| 132 | AVStreamGroup pub; | ||
| 133 | |||
| 134 | AVFormatContext *fmtctx; | ||
| 135 | } FFStreamGroup; | ||
| 136 | |||
| 137 | static av_always_inline FFStreamGroup *ffstreamgroup(AVStreamGroup *stg) | ||
| 138 | { | ||
| 139 | return (FFStreamGroup*)stg; | ||
| 140 | } | ||
| 141 | |||
| 142 | 330 | static av_always_inline const FFStreamGroup *cffstreamgroup(const AVStreamGroup *stg) | |
| 143 | { | ||
| 144 | 330 | return (const FFStreamGroup*)stg; | |
| 145 | } | ||
| 146 | |||
| 147 | void ff_flush_packet_queue(AVFormatContext *s); | ||
| 148 | |||
| 149 | const struct AVCodec *ff_find_decoder(AVFormatContext *s, const AVStream *st, | ||
| 150 | enum AVCodecID codec_id); | ||
| 151 | |||
| 152 | /** | ||
| 153 | * Frees a stream without modifying the corresponding AVFormatContext. | ||
| 154 | * Must only be called if the latter doesn't matter or if the stream | ||
| 155 | * is not yet attached to an AVFormatContext. | ||
| 156 | */ | ||
| 157 | void ff_free_stream(AVStream **st); | ||
| 158 | |||
| 159 | /** | ||
| 160 | * Frees a stream group without modifying the corresponding AVFormatContext. | ||
| 161 | * Must only be called if the latter doesn't matter or if the stream | ||
| 162 | * is not yet attached to an AVFormatContext. | ||
| 163 | */ | ||
| 164 | void ff_free_stream_group(AVStreamGroup **pstg); | ||
| 165 | |||
| 166 | int ff_is_intra_only(enum AVCodecID id); | ||
| 167 | |||
| 168 | struct FFOutputFormat; | ||
| 169 | struct FFInputFormat; | ||
| 170 | void avpriv_register_devices(const struct FFOutputFormat * const o[], | ||
| 171 | const struct FFInputFormat * const i[]); | ||
| 172 | |||
| 173 | #endif // AVFORMAT_AVFORMAT_INTERNAL_H | ||
| 174 |