summaryrefslogtreecommitdiffstats
path: root/ext/divx/gstdivxdec.c
diff options
context:
space:
mode:
Diffstat (limited to 'ext/divx/gstdivxdec.c')
-rw-r--r--ext/divx/gstdivxdec.c435
1 files changed, 435 insertions, 0 deletions
diff --git a/ext/divx/gstdivxdec.c b/ext/divx/gstdivxdec.c
new file mode 100644
index 00000000..c928c9ad
--- /dev/null
+++ b/ext/divx/gstdivxdec.c
@@ -0,0 +1,435 @@
+/* GStreamer divx decoder plugin
+ * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
+ *
+ * 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 <string.h>
+#include "gstdivxdec.h"
+#include <gst/video/video.h>
+
+/* elementfactory information */
+GstElementDetails gst_divxdec_details = {
+ "Divx decoder",
+ "Codec/Video/Decoder",
+ "Commercial",
+ "Divx decoder based on divxdecore",
+ VERSION,
+ "Ronald Bultje <rbultje@ronald.bitfreak.net>",
+ "(C) 2003",
+};
+
+GST_PAD_TEMPLATE_FACTORY(sink_template,
+ "sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_CAPS_NEW("divxdec_sink",
+ "video/divx",
+ NULL)
+)
+
+GST_PAD_TEMPLATE_FACTORY(src_template,
+ "src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_CAPS_NEW("divxdec_src",
+ "video/raw",
+ "format", GST_PROPS_LIST(
+ GST_PROPS_FOURCC(GST_MAKE_FOURCC('R','G','B',' ')),
+ GST_PROPS_FOURCC(GST_MAKE_FOURCC('I','4','2','0')),
+ GST_PROPS_FOURCC(GST_MAKE_FOURCC('I','Y','U','V')),
+ GST_PROPS_FOURCC(GST_MAKE_FOURCC('Y','U','Y','2')),
+ GST_PROPS_FOURCC(GST_MAKE_FOURCC('Y','V','1','2')),
+ GST_PROPS_FOURCC(GST_MAKE_FOURCC('U','Y','V','Y'))
+ ),
+ "width", GST_PROPS_INT_RANGE(0, G_MAXINT),
+ "height", GST_PROPS_INT_RANGE(0, G_MAXINT),
+ NULL)
+)
+
+
+/* DivxDec signals and args */
+enum {
+ /* FILL ME */
+ LAST_SIGNAL
+};
+
+enum {
+ ARG_0
+ /* FILL ME */
+};
+
+
+static void gst_divxdec_class_init (GstDivxDecClass *klass);
+static void gst_divxdec_init (GstDivxDec *divxdec);
+static void gst_divxdec_dispose (GObject *object);
+static void gst_divxdec_chain (GstPad *pad,
+ GstBuffer *buf);
+static GstPadLinkReturn gst_divxdec_connect (GstPad *pad,
+ GstCaps *vscapslist);
+
+static GstElementClass *parent_class = NULL;
+/* static guint gst_divxdec_signals[LAST_SIGNAL] = { 0 }; */
+
+
+GType
+gst_divxdec_get_type(void)
+{
+ static GType divxdec_type = 0;
+
+ if (!divxdec_type)
+ {
+ static const GTypeInfo divxdec_info = {
+ sizeof(GstDivxDecClass),
+ NULL,
+ NULL,
+ (GClassInitFunc) gst_divxdec_class_init,
+ NULL,
+ NULL,
+ sizeof(GstDivxDec),
+ 0,
+ (GInstanceInitFunc) gst_divxdec_init,
+ };
+ divxdec_type = g_type_register_static(GST_TYPE_ELEMENT,
+ "GstDivxDec",
+ &divxdec_info, 0);
+ }
+ return divxdec_type;
+}
+
+
+static void
+gst_divxdec_class_init (GstDivxDecClass *klass)
+{
+ GObjectClass *gobject_class = (GObjectClass *) klass;
+
+ parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
+
+ gobject_class->dispose = gst_divxdec_dispose;
+}
+
+
+static void
+gst_divxdec_init (GstDivxDec *divxdec)
+{
+ /* create the sink pad */
+ divxdec->sinkpad = gst_pad_new_from_template(
+ GST_PAD_TEMPLATE_GET(sink_template),
+ "sink");
+ gst_element_add_pad(GST_ELEMENT(divxdec), divxdec->sinkpad);
+
+ gst_pad_set_chain_function(divxdec->sinkpad, gst_divxdec_chain);
+ gst_pad_set_link_function(divxdec->sinkpad, gst_divxdec_connect);
+
+ /* create the src pad */
+ divxdec->srcpad = gst_pad_new_from_template(
+ GST_PAD_TEMPLATE_GET(src_template),
+ "src");
+ gst_element_add_pad(GST_ELEMENT(divxdec), divxdec->srcpad);
+
+ /* bitrate, etc. */
+ divxdec->width = divxdec->height = divxdec->csp = -1;
+
+ /* set divx handle to NULL */
+ divxdec->handle = NULL;
+}
+
+
+static void
+gst_divxdec_unset (GstDivxDec *divxdec)
+{
+ /* free allocated memory */
+ g_free(divxdec->bufinfo.mp4_edged_ref_buffers);
+ g_free(divxdec->bufinfo.mp4_edged_for_buffers);
+ g_free(divxdec->bufinfo.mp4_edged_back_buffers);
+ g_free(divxdec->bufinfo.mp4_display_buffers);
+ g_free(divxdec->bufinfo.mp4_state);
+ g_free(divxdec->bufinfo.mp4_tables);
+ g_free(divxdec->bufinfo.mp4_stream);
+ g_free(divxdec->bufinfo.mp4_reference);
+
+ if (divxdec->handle) {
+ /* unref this instance */
+ decore((gulong) divxdec->handle, DEC_OPT_RELEASE,
+ NULL, NULL);
+ divxdec->handle = NULL;
+ }
+}
+
+
+static gboolean
+gst_divxdec_setup (GstDivxDec *divxdec)
+{
+ DEC_PARAM xdec;
+ DEC_MEM_REQS xreq;
+ int ret;
+
+ /* initialise parameters, see divx documentation */
+ memset(&xdec, 0, sizeof(DEC_PARAM));
+ xdec.x_dim = divxdec->width;
+ xdec.y_dim = divxdec->height;
+ xdec.time_incr = 15; /* default - what is this? */
+ xdec.output_format = divxdec->csp;
+
+ if ((ret = decore((gulong) divxdec, DEC_OPT_MEMORY_REQS,
+ &xdec, &xreq)) != 0) {
+ char *error;
+ switch (ret) {
+ case DEC_MEMORY:
+ error = "Memory allocation error";
+ break;
+ case DEC_BAD_FORMAT:
+ error = "Format";
+ break;
+ default:
+ error = "Internal failure";
+ break;
+ }
+ GST_DEBUG(GST_CAT_PLUGIN_INFO,
+ "Setting parameters %dx%d@%d failed: %s",
+ divxdec->width, divxdec->height, divxdec->csp, error);
+ return FALSE;
+ }
+
+ /* allocate memory */
+ xdec.buffers.mp4_edged_ref_buffers = g_malloc(xreq.mp4_edged_ref_buffers_size);
+ memset(xdec.buffers.mp4_edged_ref_buffers, 0, xreq.mp4_edged_ref_buffers_size);
+
+ xdec.buffers.mp4_edged_for_buffers = g_malloc(xreq.mp4_edged_for_buffers_size);
+ memset(xdec.buffers.mp4_edged_for_buffers, 0, xreq.mp4_edged_for_buffers_size);
+
+ xdec.buffers.mp4_edged_back_buffers = g_malloc(xreq.mp4_edged_back_buffers_size);
+ memset(xdec.buffers.mp4_edged_back_buffers, 0, xreq.mp4_edged_back_buffers_size);
+
+ xdec.buffers.mp4_display_buffers = g_malloc(xreq.mp4_display_buffers_size);
+ memset(xdec.buffers.mp4_display_buffers, 0, xreq.mp4_display_buffers_size);
+
+ xdec.buffers.mp4_state = g_malloc(xreq.mp4_state_size);
+ memset(xdec.buffers.mp4_state, 0, xreq.mp4_state_size);
+
+ xdec.buffers.mp4_tables = g_malloc(xreq.mp4_tables_size);
+ memset(xdec.buffers.mp4_tables, 0, xreq.mp4_tables_size);
+
+ xdec.buffers.mp4_stream = g_malloc(xreq.mp4_stream_size);
+ memset(xdec.buffers.mp4_stream, 0, xreq.mp4_stream_size);
+
+ xdec.buffers.mp4_reference = g_malloc(xreq.mp4_reference_size);
+ memset(xdec.buffers.mp4_reference, 0, xreq.mp4_reference_size);
+
+ divxdec->bufinfo = xdec.buffers;
+
+ if ((ret = decore((gulong) divxdec, DEC_OPT_INIT,
+ &xdec, &xreq)) != 0) {
+ gst_element_error(GST_ELEMENT(divxdec),
+ "Expected error when confirming current settings: %d",
+ ret);
+ gst_divxdec_unset(divxdec);
+ return FALSE;
+ }
+
+ /* don't tell me this sucks - this is how divx4linux works... */
+ divxdec->handle = divxdec;
+
+ return TRUE;
+}
+
+
+static void
+gst_divxdec_dispose (GObject *object)
+{
+ GstDivxDec *divxdec = GST_DIVXDEC(object);
+
+ gst_divxdec_unset(divxdec);
+}
+
+
+static void
+gst_divxdec_chain (GstPad *pad,
+ GstBuffer *buf)
+{
+ GstDivxDec *divxdec;
+ GstBuffer *outbuf;
+ DEC_FRAME xframe;
+ int ret;
+
+ g_return_if_fail(pad != NULL);
+ g_return_if_fail(GST_IS_PAD(pad));
+ g_return_if_fail(buf != NULL);
+
+ divxdec = GST_DIVXDEC(GST_OBJECT_PARENT(pad));
+
+ if (!divxdec->handle) {
+ gst_element_error(GST_ELEMENT(divxdec),
+ "No format set - aborting");
+ gst_buffer_unref(buf);
+ return;
+ }
+
+ outbuf = gst_buffer_new_and_alloc(divxdec->width *
+ divxdec->height *
+ divxdec->bpp / 8);
+ GST_BUFFER_TIMESTAMP(outbuf) = GST_BUFFER_TIMESTAMP(buf);
+ GST_BUFFER_SIZE(outbuf) = divxdec->width *
+ divxdec->height *
+ divxdec->bpp / 8;
+
+ /* encode and so ... */
+ xframe.bitstream = (void *) GST_BUFFER_DATA(buf);
+ xframe.bmp = (void *) GST_BUFFER_DATA(outbuf);
+ xframe.length = GST_BUFFER_SIZE(buf);
+ xframe.stride = divxdec->width * divxdec->bpp / 8;
+ xframe.render_flag = 1;
+
+ if ((ret = decore((gulong) divxdec->handle, DEC_OPT_FRAME,
+ &xframe, NULL))) {
+ gst_element_error(GST_ELEMENT(divxdec),
+ "Error decoding divx frame: %d\n", ret);
+ gst_buffer_unref(buf);
+ return;
+ }
+
+ gst_pad_push(divxdec->srcpad, outbuf);
+ gst_buffer_unref(buf);
+}
+
+
+static GstPadLinkReturn
+gst_divxdec_connect (GstPad *pad,
+ GstCaps *vscaps)
+{
+ GstDivxDec *divxdec;
+ GstCaps *caps;
+ struct {
+ guint32 fourcc;
+ gint depth, bpp;
+ gint csp;
+ } fmt_list[] = {
+ { GST_MAKE_FOURCC('Y','U','Y','V'), 16, 16, DEC_YUY2 },
+ { GST_MAKE_FOURCC('U','Y','V','Y'), 16, 16, DEC_UYVY },
+ { GST_MAKE_FOURCC('I','4','2','0'), 12, 12, DEC_420 },
+ { GST_MAKE_FOURCC('I','Y','U','V'), 12, 12, DEC_420 },
+ { GST_MAKE_FOURCC('Y','V','1','2'), 12, 12, DEC_YV12 },
+ { GST_MAKE_FOURCC('R','G','B',' '), 32, 32, DEC_RGB32 },
+ { GST_MAKE_FOURCC('R','G','B',' '), 24, 24, DEC_RGB24 },
+ { GST_MAKE_FOURCC('R','G','B',' '), 16, 16, DEC_RGB555 },
+ { GST_MAKE_FOURCC('R','G','B',' '), 15, 16, DEC_RGB565 },
+ { 0, 0, 0 }
+ };
+ gint i;
+
+ divxdec = GST_DIVXDEC(gst_pad_get_parent (pad));
+
+ /* if there's something old around, remove it */
+ if (divxdec->handle) {
+ gst_divxdec_unset(divxdec);
+ }
+
+ /* we are not going to act on variable caps */
+ if (!GST_CAPS_IS_FIXED(vscaps))
+ return GST_PAD_LINK_DELAYED;
+
+ /* if we get here, we know the input is divx. we
+ * only need to bother with the output colorspace */
+ gst_caps_get_int(vscaps, "width", &divxdec->width);
+ gst_caps_get_int(vscaps, "height", &divxdec->height);
+
+ for (i = 0; fmt_list[i].fourcc != 0; i++) {
+ divxdec->csp = fmt_list[i].csp;
+
+ /* try making a caps to set on the other side */
+ if (fmt_list[i].fourcc == GST_MAKE_FOURCC('R','G','B',' ')) {
+ guint32 r_mask = 0, b_mask = 0, g_mask = 0;
+ switch (fmt_list[i].depth) {
+ case 15:
+ r_mask = 0xf800; g_mask = 0x07c0; b_mask = 0x003e;
+ break;
+ case 16:
+ r_mask = 0xf800; g_mask = 0x07e0; b_mask = 0x001f;
+ break;
+ case 24:
+ r_mask = 0xff0000; g_mask = 0x00ff00; b_mask = 0x0000ff;
+ break;
+ case 32:
+ r_mask = 0xff000000; g_mask = 0x00ff0000; b_mask = 0x0000ff00;
+ break;
+ }
+ caps = GST_CAPS_NEW("divxdec_src_pad_rgb",
+ "video/raw",
+ "width", GST_PROPS_INT(divxdec->width),
+ "height", GST_PROPS_INT(divxdec->height),
+ "format", GST_PROPS_FOURCC(fmt_list[i].fourcc),
+ "depth", GST_PROPS_INT(fmt_list[i].depth),
+ "bpp", GST_PROPS_INT(fmt_list[i].bpp),
+ "endianness", GST_PROPS_INT(G_BYTE_ORDER),
+ "red_mask", GST_PROPS_INT(r_mask),
+ "green_mask", GST_PROPS_INT(g_mask),
+ "blue_mask", GST_PROPS_INT(b_mask),
+ NULL);
+ } else {
+ caps = GST_CAPS_NEW("divxdec_src_pad_yuv",
+ "video/raw",
+ "width", GST_PROPS_INT(divxdec->width),
+ "height", GST_PROPS_INT(divxdec->height),
+ "format", GST_PROPS_FOURCC(fmt_list[i].fourcc),
+ NULL);
+ }
+
+ if (gst_pad_try_set_caps(divxdec->srcpad, caps) > 0) {
+ divxdec->csp = fmt_list[i].csp;
+ divxdec->bpp = fmt_list[i].bpp;
+ if (gst_divxdec_setup(divxdec))
+ return GST_PAD_LINK_OK;
+ }
+ }
+
+ /* if we got here - it's not good */
+ return GST_PAD_LINK_REFUSED;
+}
+
+
+static gboolean
+plugin_init (GModule *module,
+ GstPlugin *plugin)
+{
+ GstElementFactory *factory;
+
+ /* create an elementfactory for the v4lmjpegsrcparse element */
+ factory = gst_element_factory_new("divxdec", GST_TYPE_DIVXDEC,
+ &gst_divxdec_details);
+ g_return_val_if_fail(factory != NULL, FALSE);
+
+ /* add pad templates */
+ gst_element_factory_add_pad_template(factory,
+ GST_PAD_TEMPLATE_GET(sink_template));
+ gst_element_factory_add_pad_template(factory,
+ GST_PAD_TEMPLATE_GET(src_template));
+
+ gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
+
+ return TRUE;
+}
+
+
+GstPluginDesc plugin_desc = {
+ GST_VERSION_MAJOR,
+ GST_VERSION_MINOR,
+ "divxdec",
+ plugin_init
+};
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-28 19:05:57 +0000