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mpv/stream/stream_memory.c
wm4 bc1d61cf42 stream: redo URL parsing, replace m_struct usage with m_config
Move the URL parsing code from m_option.c to stream.c, and simplify it
dramatically. This code originates from times when http code used this,
but now it's just relict from other stream implementations reusing this
code. Remove the unused bits and simplify the rest.

stream_vcd is insane, and the priv struct is different on every
platform, so drop the URL parsing. This means you can't specify a track
anymore, only the device. (Does anyone use stream_vcd? Not like this
couldn't be fixed, but it doesn't seem worth the effort, especially
because it'd require potentially touching platform specific code.)
2013-08-02 17:02:34 +02:00

80 lines
1.9 KiB
C

/*
* This file is part of mpv.
*
* mpv is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* mpv 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include <libavutil/common.h>
#include "stream.h"
struct priv {
bstr data;
};
static int fill_buffer(stream_t *s, char* buffer, int len)
{
struct priv *p = s->priv;
bstr data = p->data;
if (s->pos < 0 || s->pos > data.len)
return 0;
len = FFMIN(len, data.len - s->pos);
memcpy(buffer, data.start + s->pos, len);
return len;
}
static int seek(stream_t *s, int64_t newpos)
{
s->pos = newpos;
return 1;
}
static int control(stream_t *s, int cmd, void *arg)
{
struct priv *p = s->priv;
switch(cmd) {
case STREAM_CTRL_SET_CONTENTS: ;
bstr *data = (bstr *)arg;
talloc_free(p->data.start);
p->data = bstrdup(s, *data);
s->end_pos = p->data.len;
return 1;
}
return STREAM_UNSUPPORTED;
}
static int open_f(stream_t *stream, int mode)
{
stream->fill_buffer = fill_buffer;
stream->seek = seek;
stream->control = control;
stream->read_chunk = 1024 * 1024;
struct priv *p = talloc_zero(stream, struct priv);
stream->priv = p;
// Initial data
bstr data = bstr0(stream->url);
bstr_eatstart0(&data, "memory://");
stream_control(stream, STREAM_CTRL_SET_CONTENTS, &data);
return STREAM_OK;
}
const stream_info_t stream_info_memory = {
"memory",
open_f,
{ "memory", NULL },
};