Commit 59b6d933 authored by Lutz Mueller's avatar Lutz Mueller Committed by Sebastian Dröge

pnm: Add PNM encoder and decoder elements

Fixes bug #164870.
parent 5a8e9cd0
......@@ -281,6 +281,7 @@ AG_GST_CHECK_PLUGIN(mxf)
AG_GST_CHECK_PLUGIN(nsf)
AG_GST_CHECK_PLUGIN(nuvdemux)
AG_GST_CHECK_PLUGIN(pcapparse)
AG_GST_CHECK_PLUGIN(pnm)
AG_GST_CHECK_PLUGIN(qtmux)
AG_GST_CHECK_PLUGIN(rawparse)
AG_GST_CHECK_PLUGIN(real)
......@@ -1730,6 +1731,7 @@ gst/mxf/Makefile
gst/nsf/Makefile
gst/nuvdemux/Makefile
gst/pcapparse/Makefile
gst/pnm/Makefile
gst/qtmux/Makefile
gst/rawparse/Makefile
gst/real/Makefile
......
plugin_LTLIBRARIES = libgstpnm.la
libgstpnm_la_SOURCES = gstpnmutils.c gstpnm.c gstpnmdec.c gstpnmenc.c
libgstpnm_la_CFLAGS = $(GST_CFLAGS)
libgstpnm_la_LIBADD = $(GST_LIBS)
libgstpnm_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
noinst_HEADERS = gstpnmdec.h gstpnmutils.h gstpnmenc.h
/* GStreamer
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstpnmdec.h"
#include "gstpnmenc.h"
#include "gstpnmutils.h"
#include <gst/gstplugin.h>
#include <gst/gstversion.h>
#include <gst/gsttypefind.h>
#include <string.h>
static GstStaticCaps bitmap_caps = GST_STATIC_CAPS (MIME_BM);
static GstStaticCaps graymap_caps = GST_STATIC_CAPS (MIME_GM);
static GstStaticCaps pixmap_caps = GST_STATIC_CAPS (MIME_PM);
#define BITMAP_CAPS (gst_static_caps_get (&bitmap_caps))
#define GRAYMAP_CAPS (gst_static_caps_get (&graymap_caps))
#define PIXMAP_CAPS (gst_static_caps_get (&pixmap_caps))
static void
gst_my_typefind_function (GstTypeFind * tf, gpointer d)
{
GstPnmInfoMngrResult r = GST_PNM_INFO_MNGR_RESULT_READING;
GstPnmInfoMngr mngr = { 0, };
guint i;
guint8 *data = NULL;
for (i = 0; r == GST_PNM_INFO_MNGR_RESULT_READING; i++) {
data = gst_type_find_peek (tf, i, 1);
if (!data)
break;
r = gst_pnm_info_mngr_scan (&mngr, data, 1);
}
switch (r) {
case GST_PNM_INFO_MNGR_RESULT_READING:
case GST_PNM_INFO_MNGR_RESULT_FAILED:
return;
case GST_PNM_INFO_MNGR_RESULT_FINISHED:
switch (mngr.info.type) {
case GST_PNM_TYPE_BITMAP_ASCII:
case GST_PNM_TYPE_BITMAP_RAW:
gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, BITMAP_CAPS);
return;
case GST_PNM_TYPE_GRAYMAP_ASCII:
case GST_PNM_TYPE_GRAYMAP_RAW:
gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, GRAYMAP_CAPS);
return;
case GST_PNM_TYPE_PIXMAP_ASCII:
case GST_PNM_TYPE_PIXMAP_RAW:
gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, PIXMAP_CAPS);
return;
}
}
}
static gboolean
plugin_init (GstPlugin * plugin)
{
static gchar *exts[] = { "pnm", NULL };
if (!gst_type_find_register (plugin, "", GST_RANK_PRIMARY,
gst_my_typefind_function, exts, gst_caps_new_simple (MIME_ALL, NULL),
NULL, NULL))
return FALSE;
if (!gst_element_register (plugin, "pnmdec", GST_RANK_PRIMARY,
GST_TYPE_PNMDEC))
return FALSE;
if (!gst_element_register (plugin, "pnmenc", GST_RANK_PRIMARY,
GST_TYPE_PNMENC))
return FALSE;
return TRUE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR, "pnm",
"PNM plugin", plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME,
GST_PACKAGE_ORIGIN)
/* GStreamer
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/**
* SECTION:element-pnmdec
*
* Decodes pnm images.
*
* <refsect2>
* <title>Example launch line</title>
* |[
* gst-launch filesrc location=test.pnm ! pnmdec ! ximagesink
* ]| The above pipeline reads a pnm file and renders it to the screen.
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstpnmdec.h"
#include "gstpnmutils.h"
#include <gst/gstutils.h>
#include <string.h>
static GstElementDetails pnmdec_details = GST_ELEMENT_DETAILS ("PNM converter",
"Codec/Decoder/Image", "Decodes PNM format",
"Lutz Mueller <lutz@users.sourceforge.net>");
static GstElementClass *parent_class;
static GstStaticPadTemplate gst_pnmdec_src_pad_template =
GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw-rgb, bpp = (int) 24, "
"width = (int) [ 1, MAX ], height = (int) [ 1, MAX ]"));
static GstStaticPadTemplate gst_pnmdec_sink_pad_template =
GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
GST_STATIC_CAPS (MIME_ALL));
static GstFlowReturn
gst_pnmdec_chain (GstPad * pad, GstBuffer * data)
{
GstPnmdec *s = GST_PNMDEC (gst_pad_get_parent (pad));
GstPad *src = gst_element_get_static_pad (GST_ELEMENT (s), "src");
GstBuffer *buf;
GstCaps *caps = NULL;
GstFlowReturn r = GST_FLOW_OK;
guint8 offset = 0;
if (!(s->mngr.info.fields & GST_PNM_INFO_FIELDS_ALL)) {
switch (gst_pnm_info_mngr_scan (&s->mngr, GST_BUFFER_DATA (data),
GST_BUFFER_SIZE (data))) {
case GST_PNM_INFO_MNGR_RESULT_FAILED:
gst_buffer_unref (data);
return GST_FLOW_ERROR;
case GST_PNM_INFO_MNGR_RESULT_READING:
gst_buffer_unref (data);
return GST_FLOW_OK;
case GST_PNM_INFO_MNGR_RESULT_FINISHED:
offset = s->mngr.data_offset;
caps = gst_pad_get_caps (src);
gst_caps_set_simple (caps,
"width", G_TYPE_INT, s->mngr.info.width,
"height", G_TYPE_INT, s->mngr.info.height, NULL);
if (!gst_pad_set_caps (src, caps)) {
gst_caps_unref (caps);
return GST_FLOW_ERROR;
}
gst_caps_unref (caps);
switch (s->mngr.info.type) {
case GST_PNM_TYPE_BITMAP_RAW:
case GST_PNM_TYPE_BITMAP_ASCII:
case GST_PNM_TYPE_GRAYMAP_RAW:
case GST_PNM_TYPE_GRAYMAP_ASCII:
s->size = s->mngr.info.width * s->mngr.info.height * 1;
break;
case GST_PNM_TYPE_PIXMAP_RAW:
case GST_PNM_TYPE_PIXMAP_ASCII:
s->size = s->mngr.info.width * s->mngr.info.height * 3;
break;
}
}
}
if (offset == GST_BUFFER_SIZE (data))
return GST_FLOW_OK;
/* If we got the whole image, just push the buffer. */
if (GST_BUFFER_SIZE (data) - offset == s->size) {
buf = gst_buffer_create_sub (data, offset, s->size);
gst_buffer_unref (data);
memset (&s->mngr, 0, sizeof (GstPnmInfoMngr));
s->size = 0;
gst_buffer_set_caps (buf, GST_PAD_CAPS (src));
return gst_pad_push (src, buf);
}
/* We didn't get the whole image. */
if (!s->buf) {
s->buf = gst_buffer_create_sub (data, offset,
GST_BUFFER_SIZE (data) - offset);
} else {
buf = gst_buffer_span (s->buf, 0, data,
GST_BUFFER_SIZE (s->buf) + GST_BUFFER_SIZE (data) - offset);
gst_buffer_unref (s->buf);
s->buf = buf;
}
if (!s->buf)
return GST_FLOW_ERROR;
/* Do we now have the full image? If yes, push. */
if (GST_BUFFER_SIZE (s->buf) == s->size) {
gst_buffer_set_caps (s->buf, GST_PAD_CAPS (src));
r = gst_pad_push (src, s->buf);
s->buf = NULL;
memset (&s->mngr, 0, sizeof (GstPnmInfoMngr));
s->size = 0;
}
return r;
}
static void
gst_pnmdec_finalize (GObject * object)
{
GstPnmdec *dec = GST_PNMDEC (object);
if (dec->buf) {
gst_buffer_unref (dec->buf);
dec->buf = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_pnmdec_init (GstPnmdec * s, GstPnmdecClass * klass)
{
GstPad *pad;
pad =
gst_pad_new_from_template (gst_static_pad_template_get
(&gst_pnmdec_sink_pad_template), "sink");
gst_pad_set_chain_function (pad, gst_pnmdec_chain);
gst_element_add_pad (GST_ELEMENT (s), pad);
pad =
gst_pad_new_from_template (gst_static_pad_template_get
(&gst_pnmdec_src_pad_template), "src");
gst_pad_use_fixed_caps (pad);
gst_element_add_pad (GST_ELEMENT (s), pad);
}
static void
gst_pnmdec_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_pnmdec_sink_pad_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_pnmdec_src_pad_template));
gst_element_class_set_details (element_class, &pnmdec_details);
}
static void
gst_pnmdec_class_init (GstPnmdecClass * klass)
{
GObjectClass *gobject_class = (GObjectClass *) klass;
parent_class = g_type_class_peek_parent (klass);
gobject_class->finalize = gst_pnmdec_finalize;
}
GST_BOILERPLATE (GstPnmdec, gst_pnmdec, GstElement, GST_TYPE_ELEMENT)
/* GStreamer
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_PNMDEC_H__
#define __GST_PNMDEC_H__
#include <gst/gstelement.h>
#include "gstpnmutils.h"
G_BEGIN_DECLS
#define GST_TYPE_PNMDEC (gst_pnmdec_get_type())
#define GST_PNMDEC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_PNMDEC,GstPnmdec))
#define GST_PNMDEC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_PNMDEC,GstPnmdec))
#define GST_IS_PNMDEC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_PNMDEC))
#define GST_IS_PNMDEC_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_PNMDEC))
typedef struct _GstPnmdec GstPnmdec;
typedef struct _GstPnmdecClass GstPnmdecClass;
struct _GstPnmdec
{
GstElement element;
GstPnmInfoMngr mngr;
guint size;
GstBuffer *buf;
};
struct _GstPnmdecClass
{
GstElementClass parent_class;
};
GType gst_pnmdec_get_type (void) G_GNUC_CONST;
G_END_DECLS
#endif /* __GST_PNMDEC_H__ */
/* GStreamer
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/**
* SECTION:element-pnmenc
*
* Encodes pnm images.
*
* <refsect">
* <title>Example launch line</title>
* |[
* gst-launch videotestsrc num_buffers=1 ! pnmenc ! filesink location=test.pnm
* ]| The above pipeline writes a test pnm file.
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstpnmenc.h"
#include "gstpnmutils.h"
#include <gst/gstutils.h>
#include <string.h>
static GstElementDetails pnmenc_details =
GST_ELEMENT_DETAILS ("PNM converter", "Codec/Encoder/Image",
"Encodes in PNM format",
"Lutz Mueller <lutz@users.sourceforge.net>");
static GstStaticPadTemplate sink_pad_template =
GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw-rgb, bpp = (int) 24, "
"width = (int) [ 1, MAX ], height = (int) [ 1, MAX ]"));
static GstStaticPadTemplate src_pad_template =
GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
GST_STATIC_CAPS (MIME_ALL));
static GstFlowReturn
gst_pnmenc_chain (GstPad * pad, GstBuffer * buf)
{
GstPnmenc *s = GST_PNMENC (gst_pad_get_parent (pad));
GstPad *src = gst_element_get_static_pad (GST_ELEMENT (s), "src");
GstFlowReturn r;
gchar *header;
GstBuffer *out;
/* The caps on the source may not be set. */
if (!GST_PAD_CAPS (src)) {
GstCaps *caps = gst_caps_new_simple (MIME_PM, NULL);
gst_pad_set_caps (src, caps);
gst_caps_unref (caps);
}
/* Assumption: One buffer, one image. That is, always first write header. */
header = g_strdup_printf ("P%i\n%i %i\n%i\n",
s->info.type, s->info.width, s->info.height, s->info.max);
out = gst_buffer_new ();
gst_buffer_set_data (out, (guchar *) header, strlen (header));
gst_buffer_set_caps (out, GST_PAD_CAPS (src));
if ((r = gst_pad_push (src, buf)) != GST_FLOW_OK)
return r;
/* Pass through the data. */
gst_buffer_set_caps (buf, GST_PAD_CAPS (src));
return gst_pad_push (src, buf);
}
static gboolean
gst_pnmenc_setcaps_func_sink (GstPad * pad, GstCaps * caps)
{
GstPnmenc *s = GST_PNMENC (gst_pad_get_parent (pad));
GstStructure *structure = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (structure, "width", (int *) &s->info.width) ||
!gst_structure_get_int (structure, "height", (int *) &s->info.height))
return FALSE;
s->info.fields = GST_PNM_INFO_FIELDS_WIDTH | GST_PNM_INFO_FIELDS_HEIGHT;
return TRUE;
}
static GstPadLinkReturn
gst_pnmenc_setcaps_func_src (GstPad * pad, GstCaps * caps)
{
GstPnmenc *s = GST_PNMENC (gst_pad_get_parent (pad));
guint i;
s->info.fields &= ~GST_PNM_INFO_FIELDS_TYPE;
for (i = 0; i < gst_caps_get_size (caps); i++) {
GstStructure *structure = gst_caps_get_structure (caps, i);
const gchar *mime = gst_structure_get_name (structure);
if (!strcmp (mime, MIME_BM)) {
s->info.type = GST_PNM_TYPE_BITMAP_RAW;
break;
}
if (!strcmp (mime, MIME_GM)) {
s->info.type = GST_PNM_TYPE_GRAYMAP_RAW;
break;
}
if (!strcmp (mime, MIME_PM) || !strcmp (mime, MIME_AM)) {
s->info.type = GST_PNM_TYPE_PIXMAP_RAW;
break;
}
}
if (i == gst_caps_get_size (caps))
return FALSE;
s->info.max = 255;
s->info.fields |= GST_PNM_INFO_FIELDS_TYPE | GST_PNM_INFO_FIELDS_MAX;
return TRUE;
}
static void
gst_pnmenc_init (GstPnmenc * s, GstPnmencClass * klass)
{
GstPad *pad;
pad =
gst_pad_new_from_template (gst_static_pad_template_get
(&sink_pad_template), "sink");
gst_pad_set_setcaps_function (pad, gst_pnmenc_setcaps_func_sink);
gst_pad_set_chain_function (pad, gst_pnmenc_chain);
gst_element_add_pad (GST_ELEMENT (s), pad);
pad =
gst_pad_new_from_template (gst_static_pad_template_get
(&src_pad_template), "src");
gst_pad_set_setcaps_function (pad, gst_pnmenc_setcaps_func_src);
gst_element_add_pad (GST_ELEMENT (s), pad);
}
static void
gst_pnmenc_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_pad_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&src_pad_template));
gst_element_class_set_details (element_class, &pnmenc_details);
}
static void
gst_pnmenc_class_init (GstPnmencClass * klass)
{
/* Nothing to see here. Move along. */
}
GST_BOILERPLATE (GstPnmenc, gst_pnmenc, GstElement, GST_TYPE_ELEMENT)
/* GStreamer
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_PNMENC_H__
#define __GST_PNMENC_H__
#include <gst/gstelement.h>
#include "gstpnmutils.h"
G_BEGIN_DECLS
#define GST_TYPE_PNMENC (gst_pnmenc_get_type())
#define GST_PNMENC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_PNMENC,GstPnmenc))
#define GST_PNMENC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_PNMENC,GstPnmenc))
#define GST_IS_PNMENC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_PNMENC))
#define GST_IS_PNMENC_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_PNMENC))
typedef struct _GstPnmenc GstPnmenc;
typedef struct _GstPnmencClass GstPnmencClass;
struct _GstPnmenc
{
GstElement element;
GstPnmInfo info;
};
struct _GstPnmencClass
{
GstElementClass parent_class;
};
GType gst_pnmenc_get_type (void) G_GNUC_CONST;
G_END_DECLS
#endif /* __GST_PNMENC_H__ */
/* GStreamer
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "gstpnmutils.h"
GstPnmInfoMngrResult
gst_pnm_info_mngr_scan (GstPnmInfoMngr * mngr, const guint8 * buf,
guint buf_len)
{
guint i = 0;
g_return_val_if_fail (mngr != NULL, GST_PNM_INFO_MNGR_RESULT_FAILED);
g_return_val_if_fail (buf || !buf_len, GST_PNM_INFO_MNGR_RESULT_FAILED);
if (!buf_len)
return (mngr->info.fields ==
GST_PNM_INFO_FIELDS_ALL) ? GST_PNM_INFO_MNGR_RESULT_FINISHED :
GST_PNM_INFO_MNGR_RESULT_READING;
switch (mngr->state) {
case GST_PNM_INFO_MNGR_STATE_COMMENT:
for (i = 0; (i < buf_len) && (buf[i] != '\n'); i++);
if (i == buf_len)
return GST_PNM_INFO_MNGR_RESULT_READING;
mngr->state = GST_PNM_INFO_MNGR_STATE_NONE;
mngr->data_offset += i;
return gst_pnm_info_mngr_scan (mngr, buf + i, buf_len - i);
case GST_PNM_INFO_MNGR_STATE_WHITE_SPACE:
for (i = 0; (i < buf_len) && ((buf[i] == ' ') || (buf[i] == '\t')
|| (buf[i] == '\n')); i++);
if (i == buf_len)
return GST_PNM_INFO_MNGR_RESULT_READING;
mngr->state = GST_PNM_INFO_MNGR_STATE_NONE;
mngr->data_offset += i;
return gst_pnm_info_mngr_scan (mngr, buf + i, buf_len - i);
case GST_PNM_INFO_MNGR_STATE_NONE:
switch (buf[i++]) {
case '#':
mngr->state = GST_PNM_INFO_MNGR_STATE_COMMENT;
mngr->data_offset += i;
return gst_pnm_info_mngr_scan (mngr, buf + i, buf_len - i);
case ' ':
case '\t':
case '\n':
mngr->state = GST_PNM_INFO_MNGR_STATE_WHITE_SPACE;
mngr->data_offset += i;
return gst_pnm_info_mngr_scan (mngr, buf + i, buf_len - i);
case 'P':
if (mngr->info.fields & GST_PNM_INFO_FIELDS_TYPE)
return GST_PNM_INFO_MNGR_RESULT_FAILED;
mngr->state = GST_PNM_INFO_MNGR_STATE_DATA_TYPE;
mngr->data_offset += i;
return gst_pnm_info_mngr_scan (mngr, buf + i, buf_len - i);
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
if (mngr->info.fields & GST_PNM_INFO_FIELDS_MAX)
return GST_PNM_INFO_MNGR_RESULT_FINISHED;
if (mngr->info.fields & GST_PNM_INFO_FIELDS_HEIGHT) {
mngr->state = GST_PNM_INFO_MNGR_STATE_DATA_MAX;
return gst_pnm_info_mngr_scan (mngr, buf, buf_len);
}
if (mngr->info.fields & GST_PNM_INFO_FIELDS_WIDTH) {
mngr->state = GST_PNM_INFO_MNGR_STATE_DATA_HEIGHT;
return gst_pnm_info_mngr_scan (mngr, buf, buf_len);
}
mngr->state = GST_PNM_INFO_MNGR_STATE_DATA_WIDTH;
return gst_pnm_info_mngr_scan (mngr, buf, buf_len);
default:
return GST_PNM_INFO_MNGR_RESULT_FAILED;
}
case GST_PNM_INFO_MNGR_STATE_DATA_TYPE:
switch (buf[i++]) {
case '1':
mngr->info.type = GST_PNM_TYPE_BITMAP_ASCII;
break;
case '2':
mngr->info.type = GST_PNM_TYPE_GRAYMAP_ASCII;
break;
case '3':
mngr->info.type = GST_PNM_TYPE_PIXMAP_ASCII;
break;
case '4':
mngr->info.type = GST_PNM_TYPE_BITMAP_RAW;
break;
case '5':
mngr->info.type = GST_PNM_TYPE_GRAYMAP_RAW;
break;
case '6':
mngr->info.type = GST_PNM_TYPE_PIXMAP_RAW;
break;
default:
return GST_PNM_INFO_MNGR_RESULT_FAILED;
}
mngr->info.fields |= GST_PNM_INFO_FIELDS_TYPE;
mngr->state = GST_PNM_INFO_MNGR_STATE_WHITE_SPACE;
if (i == buf_len)
return GST_PNM_INFO_MNGR_RESULT_READING;
mngr->info.width = mngr->info.height = mngr->info.max = 0;
mngr->data_offset += i;
return gst_pnm_info_mngr_scan (mngr, buf + i, buf_len - i);
case GST_PNM_INFO_MNGR_STATE_DATA_WIDTH:
if ((buf[i] < '0') || (buf[i] > '9')) {
switch (buf[i]) {
case '\n':
case '\t':
case ' ':
mngr->state = GST_PNM_INFO_MNGR_STATE_WHITE_SPACE;
mngr->data_offset += i;
return gst_pnm_info_mngr_scan (mngr, buf + i, buf_len - i);
default:
return GST_PNM_INFO_MNGR_RESULT_FAILED;
}
}
mngr->info.width *= 10;
mngr->info.width += buf[i++] - 0x030;
mngr->info.fields |= GST_PNM_INFO_FIELDS_WIDTH;
mngr->data_offset += i;
return gst_pnm_info_mngr_scan (mngr, buf + i, buf_len - i);
case GST_PNM_INFO_MNGR_STATE_DATA_HEIGHT:
if ((buf[i] < '0') || (buf[i] > '9')) {
switch (buf[i]) {
case '\n':
case '\t':
case ' ':