gstreamer/subprojects/gst-plugins-good/ext/jpeg/gstsmokedec.c

337 lines
8.8 KiB
C
Raw Normal View History

/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/**
* SECTION:element-smokedec
* @title: smokedec
*
* Decodes images in smoke format.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
/*#define DEBUG_ENABLED*/
#include "gstsmokedec.h"
#include <gst/video/video.h>
GST_DEBUG_CATEGORY_STATIC (smokedec_debug);
#define GST_CAT_DEFAULT smokedec_debug
/* SmokeDec signals and args */
enum
{
LAST_SIGNAL
};
enum
{
PROP_0
};
static void gst_smokedec_base_init (gpointer g_class);
static void gst_smokedec_class_init (GstSmokeDec * klass);
static void gst_smokedec_init (GstSmokeDec * smokedec);
static void gst_smokedec_finalize (GObject * object);
static GstStateChangeReturn
gst_smokedec_change_state (GstElement * element, GstStateChange transition);
static GstFlowReturn gst_smokedec_chain (GstPad * pad, GstBuffer * buf);
static GstElementClass *parent_class = NULL;
/*static guint gst_smokedec_signals[LAST_SIGNAL] = { 0 }; */
GType
gst_smokedec_get_type (void)
{
static GType smokedec_type = 0;
if (!smokedec_type) {
static const GTypeInfo smokedec_info = {
sizeof (GstSmokeDecClass),
gst_smokedec_base_init,
NULL,
(GClassInitFunc) gst_smokedec_class_init,
NULL,
NULL,
sizeof (GstSmokeDec),
0,
(GInstanceInitFunc) gst_smokedec_init,
};
smokedec_type =
g_type_register_static (GST_TYPE_ELEMENT, "GstSmokeDec", &smokedec_info,
0);
}
return smokedec_type;
}
GST_ELEMENT_REGISTER_DEFINE (smokedec, "smokedec", GST_RANK_PRIMARY,
GST_TYPE_SMOKEDEC);
static GstStaticPadTemplate gst_smokedec_src_pad_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420"))
);
static GstStaticPadTemplate gst_smokedec_sink_pad_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-smoke, "
"width = (int) [ 16, 4096 ], "
"height = (int) [ 16, 4096 ], " "framerate = (fraction) [ 0/1, MAX ]")
);
static void
gst_smokedec_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_static_pad_template (element_class,
&gst_smokedec_src_pad_template);
gst_element_class_add_static_pad_template (element_class,
&gst_smokedec_sink_pad_template);
gst_element_class_set_static_metadata (element_class, "Smoke video decoder",
"Codec/Decoder/Video", "Decode video from Smoke format",
"Wim Taymans <wim@fluendo.com>");
}
static void
gst_smokedec_class_init (GstSmokeDec * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
Fix #337365 (g_type_class_ref <-> g_type_class_peek_parent) Original commit message from CVS: * ext/aalib/gstaasink.c: (gst_aasink_class_init): * ext/esd/esdsink.c: (gst_esdsink_class_init): * ext/flac/gstflactag.c: (gst_flac_tag_class_init): * ext/gdk_pixbuf/gstgdkpixbuf.c: (gst_gdk_pixbuf_class_init): * ext/jpeg/gstjpegenc.c: (gst_jpegenc_class_init): * ext/jpeg/gstsmokedec.c: (gst_smokedec_class_init): * ext/jpeg/gstsmokeenc.c: (gst_smokeenc_class_init): * ext/libcaca/gstcacasink.c: (gst_cacasink_class_init): * ext/libmng/gstmngdec.c: (gst_mngdec_class_init): * ext/libmng/gstmngenc.c: (gst_mngenc_class_init): * ext/libpng/gstpngdec.c: (gst_pngdec_class_init): * ext/libpng/gstpngenc.c: (gst_pngenc_class_init): * ext/mikmod/gstmikmod.c: (gst_mikmod_class_init): * ext/shout2/gstshout2.c: (gst_shout2send_class_init): * ext/speex/gstspeexenc.c: (gst_speexenc_class_init): * gst/alpha/gstalpha.c: (gst_alpha_class_init): * gst/avi/gstavimux.c: (gst_avimux_class_init): * gst/debug/efence.c: (gst_efence_class_init): * gst/debug/negotiation.c: (gst_negotiation_class_init): * gst/flx/gstflxdec.c: (gst_flxdec_class_init): * gst/goom/gstgoom.c: (gst_goom_class_init): * gst/id3demux/gstid3demux.c: (gst_id3demux_class_init): * gst/interleave/deinterleave.c: (deinterleave_class_init): * gst/interleave/interleave.c: (interleave_class_init): * gst/law/alaw-decode.c: (gst_alawdec_class_init): * gst/law/alaw-encode.c: (gst_alawenc_class_init): * gst/law/mulaw-encode.c: (gst_mulawenc_class_init): * gst/median/gstmedian.c: (gst_median_class_init): * gst/monoscope/gstmonoscope.c: (gst_monoscope_class_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_class_init): * gst/rtp/gstasteriskh263.c: (gst_asteriskh263_class_init): * gst/rtp/gstrtpL16depay.c: (gst_rtp_L16depay_class_init): * gst/rtp/gstrtpL16pay.c: (gst_rtpL16pay_class_init): * gst/rtp/gstrtpamrdepay.c: (gst_rtp_amr_depay_class_init): * gst/rtp/gstrtpamrpay.c: (gst_rtp_amr_pay_class_init): * gst/rtp/gstrtpdepay.c: (gst_rtp_depay_class_init): * gst/rtp/gstrtpgsmdepay.c: (gst_rtp_gsm_depay_class_init): * gst/rtp/gstrtpgsmpay.c: (gst_rtp_gsm_pay_class_init): * gst/rtp/gstrtph263pay.c: (gst_rtp_h263_pay_class_init): * gst/rtp/gstrtph263pdepay.c: (gst_rtp_h263p_depay_class_init): * gst/rtp/gstrtph263ppay.c: (gst_rtp_h263p_pay_class_init): * gst/rtp/gstrtpmp4gpay.c: (gst_rtp_mp4g_pay_class_init): * gst/rtp/gstrtpmp4vdepay.c: (gst_rtp_mp4v_depay_class_init): * gst/rtp/gstrtpmp4vpay.c: (gst_rtp_mp4v_pay_class_init): * gst/rtp/gstrtpmpadepay.c: (gst_rtp_mpa_depay_class_init): * gst/rtp/gstrtpmpapay.c: (gst_rtp_mpa_pay_class_init): * gst/rtp/gstrtppcmadepay.c: (gst_rtp_pcma_depay_class_init): * gst/rtp/gstrtppcmapay.c: (gst_rtp_pcma_pay_class_init): * gst/rtp/gstrtppcmudepay.c: (gst_rtp_pcmu_depay_class_init): * gst/rtp/gstrtppcmupay.c: (gst_rtp_pcmu_pay_class_init): * gst/rtp/gstrtpspeexdepay.c: (gst_rtp_speex_depay_class_init): * gst/rtp/gstrtpspeexpay.c: (gst_rtp_speex_pay_class_init): * gst/rtsp/gstrtpdec.c: (gst_rtpdec_class_init): * gst/rtsp/gstrtspsrc.c: (gst_rtspsrc_class_init): * gst/smpte/gstsmpte.c: (gst_smpte_class_init): * gst/udp/gstdynudpsink.c: (gst_dynudpsink_class_init): * gst/udp/gstmultiudpsink.c: (gst_multiudpsink_class_init): * gst/udp/gstudpsink.c: (gst_udpsink_class_init): * gst/videomixer/videomixer.c: (gst_videomixer_class_init): * gst/wavenc/gstwavenc.c: (gst_wavenc_class_init): * sys/oss/gstossdmabuffer.c: (gst_ossdmabuffer_class_init): * sys/oss/gstosssink.c: (gst_oss_sink_class_init): * sys/osxaudio/gstosxaudioelement.c: (gst_osxaudioelement_class_init): * sys/osxaudio/gstosxaudiosink.c: (gst_osxaudiosink_class_init): * sys/osxaudio/gstosxaudiosrc.c: (gst_osxaudiosrc_class_init): * sys/sunaudio/gstsunaudiosink.c: (gst_sunaudiosink_class_init): Fix #337365 (g_type_class_ref <-> g_type_class_peek_parent)
2006-04-08 21:21:45 +00:00
parent_class = g_type_class_peek_parent (klass);
gobject_class->finalize = gst_smokedec_finalize;
gstelement_class->change_state =
GST_DEBUG_FUNCPTR (gst_smokedec_change_state);
GST_DEBUG_CATEGORY_INIT (smokedec_debug, "smokedec", 0, "Smoke decoder");
}
static void
gst_smokedec_init (GstSmokeDec * smokedec)
{
GST_DEBUG_OBJECT (smokedec, "gst_smokedec_init: initializing");
/* create the sink and src pads */
smokedec->sinkpad =
Fix memleak with gst_static_pad_template_get(). Original commit message from CVS: * ext/cairo/gsttextoverlay.c: (gst_text_overlay_init): * ext/dv/gstdvdemux.c: (gst_dvdemux_init), (gst_dvdemux_add_pads): * ext/gdk_pixbuf/gstgdkpixbuf.c: (gst_gdk_pixbuf_init): * ext/jpeg/gstjpegdec.c: (gst_jpeg_dec_init), (gst_jpeg_dec_setcaps): * ext/jpeg/gstjpegenc.c: (gst_jpegenc_init): * ext/jpeg/gstsmokedec.c: (gst_smokedec_init): * ext/jpeg/gstsmokeenc.c: (gst_smokeenc_init): * ext/libmng/gstmngdec.c: (gst_mngdec_init), (gst_mngdec_src_getcaps): * ext/libpng/gstpngdec.c: (gst_pngdec_init), (gst_pngdec_caps_create_and_set): * ext/libpng/gstpngenc.c: (gst_pngenc_init): * ext/mikmod/gstmikmod.c: (gst_mikmod_init): * ext/speex/gstspeexdec.c: (gst_speex_dec_init): * gst/alpha/gstalpha.c: (gst_alpha_init): * gst/auparse/gstauparse.c: (gst_au_parse_init): * gst/avi/gstavidemux.c: (gst_avi_demux_init), (gst_avi_demux_handle_src_event), (gst_avi_demux_parse_stream): * gst/cutter/gstcutter.c: (gst_cutter_init): * gst/debug/efence.c: (gst_efence_init), (gst_efence_getrange), (gst_efence_checkgetrange): * gst/debug/negotiation.c: (gst_negotiation_init): * gst/flx/gstflxdec.c: (gst_flxdec_init): * gst/goom/gstgoom.c: (gst_goom_init): * gst/rtp/gstasteriskh263.c: (gst_asteriskh263_init): * gst/rtp/gstrtpL16depay.c: (gst_rtp_L16depay_init): * gst/rtp/gstrtpL16pay.c: (gst_rtpL16pay_init): * gst/rtp/gstrtpamrdepay.c: (gst_rtp_amr_depay_init): * gst/rtp/gstrtpdepay.c: (gst_rtp_depay_init): * gst/rtp/gstrtpmpadepay.c: (gst_rtp_mpa_depay_init): * gst/rtsp/gstrtpdec.c: (gst_rtpdec_init): * gst/smpte/gstsmpte.c: (gst_smpte_init): * gst/wavparse/gstwavparse.c: (gst_wavparse_init), (gst_wavparse_create_sourcepad): Fix memleak with gst_static_pad_template_get(). This uses gst_pad_new_from_static_template() instead. Fixes #333512
2006-03-15 16:17:12 +00:00
gst_pad_new_from_static_template (&gst_smokedec_sink_pad_template,
"sink");
gst_pad_set_chain_function (smokedec->sinkpad, gst_smokedec_chain);
gst_element_add_pad (GST_ELEMENT (smokedec), smokedec->sinkpad);
smokedec->srcpad =
Fix memleak with gst_static_pad_template_get(). Original commit message from CVS: * ext/cairo/gsttextoverlay.c: (gst_text_overlay_init): * ext/dv/gstdvdemux.c: (gst_dvdemux_init), (gst_dvdemux_add_pads): * ext/gdk_pixbuf/gstgdkpixbuf.c: (gst_gdk_pixbuf_init): * ext/jpeg/gstjpegdec.c: (gst_jpeg_dec_init), (gst_jpeg_dec_setcaps): * ext/jpeg/gstjpegenc.c: (gst_jpegenc_init): * ext/jpeg/gstsmokedec.c: (gst_smokedec_init): * ext/jpeg/gstsmokeenc.c: (gst_smokeenc_init): * ext/libmng/gstmngdec.c: (gst_mngdec_init), (gst_mngdec_src_getcaps): * ext/libpng/gstpngdec.c: (gst_pngdec_init), (gst_pngdec_caps_create_and_set): * ext/libpng/gstpngenc.c: (gst_pngenc_init): * ext/mikmod/gstmikmod.c: (gst_mikmod_init): * ext/speex/gstspeexdec.c: (gst_speex_dec_init): * gst/alpha/gstalpha.c: (gst_alpha_init): * gst/auparse/gstauparse.c: (gst_au_parse_init): * gst/avi/gstavidemux.c: (gst_avi_demux_init), (gst_avi_demux_handle_src_event), (gst_avi_demux_parse_stream): * gst/cutter/gstcutter.c: (gst_cutter_init): * gst/debug/efence.c: (gst_efence_init), (gst_efence_getrange), (gst_efence_checkgetrange): * gst/debug/negotiation.c: (gst_negotiation_init): * gst/flx/gstflxdec.c: (gst_flxdec_init): * gst/goom/gstgoom.c: (gst_goom_init): * gst/rtp/gstasteriskh263.c: (gst_asteriskh263_init): * gst/rtp/gstrtpL16depay.c: (gst_rtp_L16depay_init): * gst/rtp/gstrtpL16pay.c: (gst_rtpL16pay_init): * gst/rtp/gstrtpamrdepay.c: (gst_rtp_amr_depay_init): * gst/rtp/gstrtpdepay.c: (gst_rtp_depay_init): * gst/rtp/gstrtpmpadepay.c: (gst_rtp_mpa_depay_init): * gst/rtsp/gstrtpdec.c: (gst_rtpdec_init): * gst/smpte/gstsmpte.c: (gst_smpte_init): * gst/wavparse/gstwavparse.c: (gst_wavparse_init), (gst_wavparse_create_sourcepad): Fix memleak with gst_static_pad_template_get(). This uses gst_pad_new_from_static_template() instead. Fixes #333512
2006-03-15 16:17:12 +00:00
gst_pad_new_from_static_template (&gst_smokedec_src_pad_template, "src");
gst_pad_use_fixed_caps (smokedec->srcpad);
gst_element_add_pad (GST_ELEMENT (smokedec), smokedec->srcpad);
smokecodec_decode_new (&smokedec->info);
}
static void
gst_smokedec_finalize (GObject * object)
{
GstSmokeDec *dec = GST_SMOKEDEC (object);
smokecodec_info_free (dec->info);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static GstFlowReturn
gst_smokedec_chain (GstPad * pad, GstBuffer * buf)
{
GstSmokeDec *smokedec;
guint8 *data, *outdata;
gulong size, outsize;
GstBuffer *outbuf;
SmokeCodecFlags flags;
GstClockTime time;
guint width, height;
guint fps_num, fps_denom;
gint smokeret;
GstFlowReturn ret;
smokedec = GST_SMOKEDEC (gst_pad_get_parent (pad));
data = GST_BUFFER_DATA (buf);
size = GST_BUFFER_SIZE (buf);
time = GST_BUFFER_TIMESTAMP (buf);
if (size < 1)
goto too_small;
GST_LOG_OBJECT (smokedec, "got buffer of %lu bytes", size);
/* have the ID packet. */
if (data[0] == SMOKECODEC_TYPE_ID) {
smokeret = smokecodec_parse_id (smokedec->info, data, size);
if (smokeret != SMOKECODEC_OK)
goto header_error;
close #333784 unref the result of gst_pad_get_parent() by: Christophe Fergeau. Original commit message from CVS: * ext/cairo/gsttextoverlay.c: (gst_text_overlay_setcaps): * ext/esd/esdmon.c: (gst_esdmon_get): * ext/flac/gstflactag.c: (gst_flac_tag_chain): * ext/gdk_pixbuf/gstgdkpixbuf.c: (gst_gdk_pixbuf_sink_setcaps), (gst_gdk_pixbuf_sink_getcaps): * ext/jpeg/gstjpegenc.c: (gst_jpegenc_getcaps), (gst_jpegenc_setcaps): * ext/jpeg/gstsmokedec.c: (gst_smokedec_chain): * ext/jpeg/gstsmokeenc.c: (gst_smokeenc_getcaps), (gst_smokeenc_setcaps): * ext/libmng/gstmngdec.c: (gst_mngdec_sinklink), (gst_mngdec_src_getcaps): * ext/libmng/gstmngenc.c: (gst_mngenc_sinklink), (gst_mngenc_chain): * ext/libpng/gstpngenc.c: (gst_pngenc_setcaps): * ext/mikmod/gstmikmod.c: (gst_mikmod_srclink): * ext/speex/gstspeexdec.c: (speex_dec_convert), (speex_dec_src_event), (speex_dec_chain): * gst/avi/gstavimux.c: (gst_avimux_vidsinkconnect), (gst_avimux_audsinkconnect), (gst_avimux_handle_event): * gst/debug/negotiation.c: (gst_negotiation_getcaps), (gst_negotiation_pad_link), (gst_negotiation_chain): * gst/flx/gstflxdec.c: (gst_flxdec_src_query_handler), (gst_flxdec_chain): * gst/interleave/deinterleave.c: (deinterleave_sink_link), (deinterleave_chain): * gst/law/mulaw-encode.c: (mulawenc_setcaps): * gst/median/gstmedian.c: (gst_median_link): * gst/monoscope/gstmonoscope.c: (gst_monoscope_srcconnect), (gst_monoscope_chain): * gst/rtp/gstrtpL16pay.c: (gst_rtpL16pay_sinkconnect): * gst/wavenc/gstwavenc.c: (gst_wavenc_sink_setcaps): * sys/osxaudio/gstosxaudiosink.c: (gst_osxaudiosink_chain): * sys/osxaudio/gstosxaudiosrc.c: (gst_osxaudiosrc_get): close #333784 unref the result of gst_pad_get_parent() by: Christophe Fergeau.
2006-03-13 15:49:08 +00:00
ret = GST_FLOW_OK;
goto done;
}
/* now handle data packets */
GST_DEBUG_OBJECT (smokedec, "reading header %08lx", *(gulong *) data);
smokecodec_parse_header (smokedec->info, data, size, &flags, &width, &height,
&fps_num, &fps_denom);
if (smokedec->height != height || smokedec->width != width ||
smokedec->fps_num != fps_num || smokedec->fps_denom != fps_denom) {
GstCaps *caps;
GST_DEBUG_OBJECT (smokedec, "parameter change: %dx%d @ %d/%dfps",
width, height, fps_num, fps_denom);
smokedec->height = height;
smokedec->width = width;
caps = gst_caps_new_simple ("video/x-raw-yuv",
"format", GST_TYPE_FOURCC, GST_MAKE_FOURCC ('I', '4', '2', '0'),
"width", G_TYPE_INT, width,
"height", G_TYPE_INT, height,
"framerate", GST_TYPE_FRACTION, fps_num, fps_denom, NULL);
gst_pad_set_caps (smokedec->srcpad, caps);
gst_caps_unref (caps);
}
if (smokedec->need_keyframe) {
if (!(flags & SMOKECODEC_KEYFRAME))
goto keyframe_skip;
smokedec->need_keyframe = FALSE;
}
outsize = width * height + width * height / 2;
outbuf = gst_buffer_new_and_alloc (outsize);
outdata = GST_BUFFER_DATA (outbuf);
GST_BUFFER_DURATION (outbuf) =
gst_util_uint64_scale_int (GST_SECOND, fps_denom, fps_num);
GST_BUFFER_OFFSET (outbuf) = GST_BUFFER_OFFSET (buf);
gst_buffer_set_caps (outbuf, GST_PAD_CAPS (smokedec->srcpad));
if (time == GST_CLOCK_TIME_NONE) {
if (GST_BUFFER_OFFSET (buf) == -1) {
time = smokedec->next_time;
} else {
time = GST_BUFFER_OFFSET (buf) * GST_BUFFER_DURATION (outbuf);
}
}
GST_BUFFER_TIMESTAMP (outbuf) = time;
if (time != -1)
smokedec->next_time = time + GST_BUFFER_DURATION (outbuf);
else
smokedec->next_time = -1;
smokeret = smokecodec_decode (smokedec->info, data, size, outdata);
if (smokeret != SMOKECODEC_OK)
goto decode_error;
GST_DEBUG_OBJECT (smokedec, "gst_smokedec_chain: sending buffer");
ret = gst_pad_push (smokedec->srcpad, outbuf);
done:
gst_buffer_unref (buf);
gst_object_unref (smokedec);
return ret;
/* ERRORS */
too_small:
{
GST_ELEMENT_ERROR (smokedec, STREAM, DECODE,
(NULL), ("Input buffer too small"));
ret = GST_FLOW_ERROR;
goto done;
}
header_error:
{
GST_ELEMENT_ERROR (smokedec, STREAM, DECODE,
(NULL), ("Could not parse smoke header, reason: %d", smokeret));
ret = GST_FLOW_ERROR;
goto done;
}
keyframe_skip:
{
GST_DEBUG_OBJECT (smokedec, "dropping buffer while waiting for keyframe");
ret = GST_FLOW_OK;
goto done;
}
decode_error:
{
GST_ELEMENT_ERROR (smokedec, STREAM, DECODE,
(NULL), ("Could not decode smoke frame, reason: %d", smokeret));
ret = GST_FLOW_ERROR;
goto done;
}
}
static GstStateChangeReturn
gst_smokedec_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret;
GstSmokeDec *dec;
dec = GST_SMOKEDEC (element);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
/* reset the initial video state */
dec->format = -1;
dec->width = -1;
dec->height = -1;
dec->fps_num = -1;
dec->fps_denom = -1;
dec->next_time = 0;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret != GST_STATE_CHANGE_SUCCESS)
return ret;
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
break;
default:
break;
}
return ret;
}