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/*
* Copyright (c) 2013 Clément Bœsch
*
* 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 <quvi/quvi.h>
#include "libavformat/avformat.h"
#include "libavformat/internal.h"
#include "libavutil/avassert.h"
#include "libavutil/opt.h"
typedef struct {
const AVClass *class;
char *format;
AVFormatContext *fmtctx;
} LibQuviContext;
#define OFFSET(x) offsetof(LibQuviContext, x)
#define FLAGS AV_OPT_FLAG_DECODING_PARAM
static const AVOption libquvi_options[] = {
{ "format", "request specific format", OFFSET(format), AV_OPT_TYPE_STRING, {.str="best"}, .flags = FLAGS },
{ NULL }
};
static const AVClass libquvi_context_class = {
.class_name = "libquvi",
.item_name = av_default_item_name,
.option = libquvi_options,
.version = LIBAVUTIL_VERSION_INT,
};
static int libquvi_close(AVFormatContext *s)
{
LibQuviContext *qc = s->priv_data;
if (qc->fmtctx)
avformat_close_input(&qc->fmtctx);
return 0;
}
static int libquvi_read_header(AVFormatContext *s)
{
int i, ret;
quvi_t q;
quvi_media_t m;
QUVIcode rc;
LibQuviContext *qc = s->priv_data;
char *media_url, *pagetitle;
rc = quvi_init(&q);
if (rc != QUVI_OK) {
av_log(s, AV_LOG_ERROR, "%s\n", quvi_strerror(q, rc));
return AVERROR_EXTERNAL;
}
quvi_setopt(q, QUVIOPT_FORMAT, qc->format);
rc = quvi_parse(q, s->filename, &m);
if (rc != QUVI_OK) {
av_log(s, AV_LOG_ERROR, "%s\n", quvi_strerror(q, rc));
ret = AVERROR_EXTERNAL;
goto err_quvi_close;
}
rc = quvi_getprop(m, QUVIPROP_MEDIAURL, &media_url);
if (rc != QUVI_OK) {
av_log(s, AV_LOG_ERROR, "%s\n", quvi_strerror(q, rc));
ret = AVERROR_EXTERNAL;
goto err_quvi_cleanup;
}
if (!(qc->fmtctx = avformat_alloc_context())) {
ret = AVERROR(ENOMEM);
goto err_quvi_cleanup;
}
if ((ret = ff_copy_whitelists(qc->fmtctx, s)) < 0) {
avformat_free_context(qc->fmtctx);
qc->fmtctx = NULL;
goto err_quvi_cleanup;
}
ret = avformat_open_input(&qc->fmtctx, media_url, NULL, NULL);
if (ret < 0)
goto err_quvi_cleanup;
rc = quvi_getprop(m, QUVIPROP_PAGETITLE, &pagetitle);
if (rc == QUVI_OK)
av_dict_set(&s->metadata, "title", pagetitle, 0);
for (i = 0; i < qc->fmtctx->nb_streams; i++) {
AVStream *st = avformat_new_stream(s, NULL);
AVStream *ist = qc->fmtctx->streams[i];
if (!st) {
ret = AVERROR(ENOMEM);
goto err_close_input;
}
avpriv_set_pts_info(st, ist->pts_wrap_bits, ist->time_base.num, ist->time_base.den);
avcodec_copy_context(st->codec, qc->fmtctx->streams[i]->codec);
}
return 0;
err_close_input:
avformat_close_input(&qc->fmtctx);
err_quvi_cleanup:
quvi_parse_close(&m);
err_quvi_close:
quvi_close(&q);
return ret;
}
static int libquvi_read_packet(AVFormatContext *s, AVPacket *pkt)
{
LibQuviContext *qc = s->priv_data;
return av_read_frame(qc->fmtctx, pkt);
}
static int libquvi_read_seek(AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
{
LibQuviContext *qc = s->priv_data;
return av_seek_frame(qc->fmtctx, stream_index, timestamp, flags);
}
static int libquvi_probe(AVProbeData *p)
{
int score;
quvi_t q;
QUVIcode rc;
rc = quvi_init(&q);
if (rc != QUVI_OK)
return AVERROR(ENOMEM);
score = quvi_supported(q, (char *)p->filename) == QUVI_OK ? AVPROBE_SCORE_EXTENSION : 0;
quvi_close(&q);
return score;
}
AVInputFormat ff_libquvi_demuxer = {
.name = "libquvi",
.long_name = NULL_IF_CONFIG_SMALL("libquvi demuxer"),
.priv_data_size = sizeof(LibQuviContext),
.read_probe = libquvi_probe,
.read_header = libquvi_read_header,
.read_packet = libquvi_read_packet,
.read_close = libquvi_close,
.read_seek = libquvi_read_seek,
.priv_class = &libquvi_context_class,
.flags = AVFMT_NOFILE,
};
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