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/*
* This file is part of MPlayer.
*
* MPlayer 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.
*
* MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "osdep/io.h"
#include "talloc.h"
#include "common/msg.h"
#include "options/options.h"
#include "stream/stream.h"
#include "demux.h"
#include "stheader.h"
#include "mf.h"
#define MF_MAX_FILE_SIZE (1024 * 1024 * 256)
static void demux_seek_mf(demuxer_t *demuxer, double rel_seek_secs, int flags)
{
mf_t *mf = demuxer->priv;
int newpos = (flags & SEEK_ABSOLUTE) ? 0 : mf->curr_frame - 1;
if (flags & SEEK_FACTOR)
newpos += rel_seek_secs * (mf->nr_of_files - 1);
else
newpos += rel_seek_secs * mf->sh->fps;
if (newpos < 0)
newpos = 0;
if (newpos >= mf->nr_of_files)
newpos = mf->nr_of_files;
mf->curr_frame = newpos;
}
// return value:
// 0 = EOF or no stream found
// 1 = successfully read a packet
static int demux_mf_fill_buffer(demuxer_t *demuxer)
{
mf_t *mf = demuxer->priv;
if (mf->curr_frame >= mf->nr_of_files)
return 0;
struct stream *entry_stream = NULL;
if (mf->streams)
entry_stream = mf->streams[mf->curr_frame];
struct stream *stream = entry_stream;
if (!stream) {
char *filename = mf->names[mf->curr_frame];
if (filename)
stream = stream_open(filename, demuxer->global);
}
if (stream) {
stream_seek(stream, 0);
bstr data = stream_read_complete(stream, NULL, MF_MAX_FILE_SIZE);
if (data.len) {
demux_packet_t *dp = new_demux_packet(data.len);
if (dp) {
memcpy(dp->buffer, data.start, data.len);
dp->pts = mf->curr_frame / mf->sh->fps;
dp->keyframe = true;
demux_add_packet(demuxer->streams[0], dp);
}
}
talloc_free(data.start);
}
if (stream && stream != entry_stream)
free_stream(stream);
mf->curr_frame++;
return 1;
}
// map file extension/type to a codec name
static const struct {
const char *type;
const char *codec;
} type2format[] = {
{ "bmp", "bmp" },
{ "dpx", "dpx" },
{ "j2c", "jpeg2000" },
{ "j2k", "jpeg2000" },
{ "jp2", "jpeg2000" },
{ "jpc", "jpeg2000" },
{ "jpeg", "mjpeg" },
{ "jpg", "mjpeg" },
{ "jps", "mjpeg" },
{ "jls", "ljpeg" },
{ "thm", "mjpeg" },
{ "db", "mjpeg" },
{ "pcx", "pcx" },
{ "png", "png" },
{ "pns", "png" },
{ "ptx", "ptx" },
{ "tga", "targa" },
{ "tif", "tiff" },
{ "tiff", "tiff" },
{ "sgi", "sgi" },
{ "sun", "sunrast" },
{ "ras", "sunrast" },
{ "rs", "sunrast" },
{ "ra", "sunrast" },
{ "im1", "sunrast" },
{ "im8", "sunrast" },
{ "im24", "sunrast" },
{ "im32", "sunrast" },
{ "sunras", "sunrast" },
{ "xbm", "xbm" },
{ "pam", "pam" },
{ "pbm", "pbm" },
{ "pgm", "pgm" },
{ "pgmyuv", "pgmyuv" },
{ "ppm", "ppm" },
{ "pnm", "ppm" },
{ "gif", "gif" }, // usually handled by demux_lavf
{ "pix", "brender_pix" },
{ "exr", "exr" },
{ "pic", "pictor" },
{ "xface", "xface" },
{ "xwd", "xwd" },
{0}
};
static const char *probe_format(mf_t *mf, char *type, enum demux_check check)
{
if (check > DEMUX_CHECK_REQUEST)
return NULL;
char *org_type = type;
if (!type || !type[0]) {
char *p = strrchr(mf->names[0], '.');
if (p)
type = p + 1;
}
for (int i = 0; type2format[i].type; i++) {
if (type && strcasecmp(type, type2format[i].type) == 0)
return type2format[i].codec;
}
if (check == DEMUX_CHECK_REQUEST) {
if (!org_type) {
MP_ERR(mf, "file type was not set! (try --mf-type=ext)\n");
} else {
MP_ERR(mf, "--mf-type set to an unknown codec!\n");
}
}
return NULL;
}
static int demux_open_mf(demuxer_t *demuxer, enum demux_check check)
{
sh_video_t *sh_video = NULL;
mf_t *mf;
if (strncmp(demuxer->stream->url, "mf://", 5) == 0 &&
demuxer->stream->type == STREAMTYPE_MF)
mf = open_mf_pattern(demuxer, demuxer->log, demuxer->stream->url + 5);
else {
mf = open_mf_single(demuxer, demuxer->log, demuxer->stream->url);
int bog = 0;
MP_TARRAY_APPEND(mf, mf->streams, bog, demuxer->stream);
}
if (!mf || mf->nr_of_files < 1)
goto error;
const char *codec = probe_format(mf, demuxer->opts->mf_type, check);
if (!codec)
goto error;
mf->curr_frame = 0;
// create a new video stream header
struct sh_stream *sh = new_sh_stream(demuxer, STREAM_VIDEO);
sh_video = sh->video;
sh->codec = codec;
sh_video->disp_w = 0;
sh_video->disp_h = 0;
sh_video->fps = demuxer->opts->mf_fps;
mf->sh = sh_video;
demuxer->priv = (void *)mf;
demuxer->seekable = true;
return 0;
error:
return -1;
}
static void demux_close_mf(demuxer_t *demuxer)
{
}
static int demux_control_mf(demuxer_t *demuxer, int cmd, void *arg)
{
mf_t *mf = demuxer->priv;
switch (cmd) {
case DEMUXER_CTRL_GET_TIME_LENGTH:
*((double *)arg) = (double)mf->nr_of_files / mf->sh->fps;
return DEMUXER_CTRL_OK;
default:
return DEMUXER_CTRL_NOTIMPL;
}
}
const demuxer_desc_t demuxer_desc_mf = {
.name = "mf",
.desc = "image files (mf)",
.fill_buffer = demux_mf_fill_buffer,
.open = demux_open_mf,
.close = demux_close_mf,
.seek = demux_seek_mf,
.control = demux_control_mf,
};
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