| 1 | /* |
| 2 | * Copyright (c) 2013 Clément Bœsch |
| 3 | * |
| 4 | * This file is part of FFmpeg. |
| 5 | * |
| 6 | * FFmpeg is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU Lesser General Public |
| 8 | * License as published by the Free Software Foundation; either |
| 9 | * version 2.1 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * FFmpeg is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * Lesser General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Lesser General Public |
| 17 | * License along with FFmpeg; if not, write to the Free Software |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 19 | */ |
| 20 | |
| 21 | #include <quvi/quvi.h> |
| 22 | |
| 23 | #include "libavformat/avformat.h" |
| 24 | #include "libavformat/internal.h" |
| 25 | #include "libavutil/avassert.h" |
| 26 | #include "libavutil/opt.h" |
| 27 | |
| 28 | typedef struct { |
| 29 | const AVClass *class; |
| 30 | char *format; |
| 31 | AVFormatContext *fmtctx; |
| 32 | } LibQuviContext; |
| 33 | |
| 34 | #define OFFSET(x) offsetof(LibQuviContext, x) |
| 35 | #define FLAGS AV_OPT_FLAG_DECODING_PARAM |
| 36 | static const AVOption libquvi_options[] = { |
| 37 | { "format", "request specific format", OFFSET(format), AV_OPT_TYPE_STRING, {.str="best"}, .flags = FLAGS }, |
| 38 | { NULL } |
| 39 | }; |
| 40 | |
| 41 | static const AVClass libquvi_context_class = { |
| 42 | .class_name = "libquvi", |
| 43 | .item_name = av_default_item_name, |
| 44 | .option = libquvi_options, |
| 45 | .version = LIBAVUTIL_VERSION_INT, |
| 46 | }; |
| 47 | |
| 48 | static int libquvi_close(AVFormatContext *s) |
| 49 | { |
| 50 | LibQuviContext *qc = s->priv_data; |
| 51 | if (qc->fmtctx) |
| 52 | avformat_close_input(&qc->fmtctx); |
| 53 | return 0; |
| 54 | } |
| 55 | |
| 56 | static int libquvi_read_header(AVFormatContext *s) |
| 57 | { |
| 58 | int i, ret; |
| 59 | quvi_t q; |
| 60 | quvi_media_t m; |
| 61 | QUVIcode rc; |
| 62 | LibQuviContext *qc = s->priv_data; |
| 63 | char *media_url, *pagetitle; |
| 64 | |
| 65 | rc = quvi_init(&q); |
| 66 | if (rc != QUVI_OK) |
| 67 | goto quvi_fail; |
| 68 | |
| 69 | quvi_setopt(q, QUVIOPT_FORMAT, qc->format); |
| 70 | |
| 71 | rc = quvi_parse(q, s->filename, &m); |
| 72 | if (rc != QUVI_OK) |
| 73 | goto quvi_fail; |
| 74 | |
| 75 | rc = quvi_getprop(m, QUVIPROP_MEDIAURL, &media_url); |
| 76 | if (rc != QUVI_OK) |
| 77 | goto quvi_fail; |
| 78 | |
| 79 | if ((ret = ff_copy_whitelists(qc->fmtctx, s)) < 0) |
| 80 | goto end; |
| 81 | |
| 82 | ret = avformat_open_input(&qc->fmtctx, media_url, NULL, NULL); |
| 83 | if (ret < 0) |
| 84 | goto end; |
| 85 | |
| 86 | rc = quvi_getprop(m, QUVIPROP_PAGETITLE, &pagetitle); |
| 87 | if (rc == QUVI_OK) |
| 88 | av_dict_set(&s->metadata, "title", pagetitle, 0); |
| 89 | |
| 90 | for (i = 0; i < qc->fmtctx->nb_streams; i++) { |
| 91 | AVStream *st = avformat_new_stream(s, NULL); |
| 92 | AVStream *ist = qc->fmtctx->streams[i]; |
| 93 | if (!st) { |
| 94 | ret = AVERROR(ENOMEM); |
| 95 | goto end; |
| 96 | } |
| 97 | avpriv_set_pts_info(st, ist->pts_wrap_bits, ist->time_base.num, ist->time_base.den); |
| 98 | avcodec_copy_context(st->codec, qc->fmtctx->streams[i]->codec); |
| 99 | } |
| 100 | |
| 101 | return 0; |
| 102 | |
| 103 | quvi_fail: |
| 104 | av_log(s, AV_LOG_ERROR, "%s\n", quvi_strerror(q, rc)); |
| 105 | ret = AVERROR_EXTERNAL; |
| 106 | |
| 107 | end: |
| 108 | quvi_parse_close(&m); |
| 109 | quvi_close(&q); |
| 110 | return ret; |
| 111 | } |
| 112 | |
| 113 | static int libquvi_read_packet(AVFormatContext *s, AVPacket *pkt) |
| 114 | { |
| 115 | LibQuviContext *qc = s->priv_data; |
| 116 | return av_read_frame(qc->fmtctx, pkt); |
| 117 | } |
| 118 | |
| 119 | static int libquvi_read_seek(AVFormatContext *s, int stream_index, int64_t timestamp, int flags) |
| 120 | { |
| 121 | LibQuviContext *qc = s->priv_data; |
| 122 | return av_seek_frame(qc->fmtctx, stream_index, timestamp, flags); |
| 123 | } |
| 124 | |
| 125 | static int libquvi_probe(AVProbeData *p) |
| 126 | { |
| 127 | int score; |
| 128 | quvi_t q; |
| 129 | QUVIcode rc; |
| 130 | |
| 131 | rc = quvi_init(&q); |
| 132 | if (rc != QUVI_OK) |
| 133 | return AVERROR(ENOMEM); |
| 134 | score = quvi_supported(q, (char *)p->filename) == QUVI_OK ? AVPROBE_SCORE_EXTENSION : 0; |
| 135 | quvi_close(&q); |
| 136 | return score; |
| 137 | } |
| 138 | |
| 139 | AVInputFormat ff_libquvi_demuxer = { |
| 140 | .name = "libquvi", |
| 141 | .long_name = NULL_IF_CONFIG_SMALL("libquvi demuxer"), |
| 142 | .priv_data_size = sizeof(LibQuviContext), |
| 143 | .read_probe = libquvi_probe, |
| 144 | .read_header = libquvi_read_header, |
| 145 | .read_packet = libquvi_read_packet, |
| 146 | .read_close = libquvi_close, |
| 147 | .read_seek = libquvi_read_seek, |
| 148 | .priv_class = &libquvi_context_class, |
| 149 | .flags = AVFMT_NOFILE, |
| 150 | }; |