--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/gst_plugins_good/gst/avi/gstavimux.c Wed Mar 24 18:04:17 2010 -0500
@@ -0,0 +1,1982 @@
+/* AVI muxer plugin for GStreamer
+ * Copyright (C) 2002 Ronald Bultje <rbultje@ronald.bitfreak.net>
+ * (C) 2006 Mark Nauwelaerts <manauw@skynet.be>
+ *
+ * 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.
+ */
+
+/* based on:
+ * - the old avimuxer (by Wim Taymans)
+ * - xawtv's aviwriter (by Gerd Knorr)
+ * - mjpegtools' avilib (by Rainer Johanni)
+ * - openDML large-AVI docs
+ */
+
+/**
+ * SECTION:element-avimux
+ *
+ * Muxes raw or compressed audio and/or video streams into an AVI file.
+ *
+ * <refsect2>
+ * <title>Example launch lines</title>
+ * <para>(write everything in one line, without the backslash characters)</para>
+ * |[
+ * gst-launch videotestsrc num-buffers=250 \
+ * ! 'video/x-raw-yuv,format=(fourcc)I420,width=320,height=240,framerate=(fraction)25/1' \
+ * ! queue ! mux. \
+ * audiotestsrc num-buffers=440 ! audioconvert \
+ * ! 'audio/x-raw-int,rate=44100,channels=2' ! queue ! mux. \
+ * avimux name=mux ! filesink location=test.avi
+ * ]| This will create an .AVI file containing an uncompressed video stream
+ * with a test picture and an uncompressed audio stream containing a
+ * test sound.
+ * |[
+ * gst-launch videotestsrc num-buffers=250 \
+ * ! 'video/x-raw-yuv,format=(fourcc)I420,width=320,height=240,framerate=(fraction)25/1' \
+ * ! xvidenc ! queue ! mux. \
+ * audiotestsrc num-buffers=440 ! audioconvert ! 'audio/x-raw-int,rate=44100,channels=2' \
+ * ! lame ! queue ! mux. \
+ * avimux name=mux ! filesink location=test.avi
+ * ]| This will create an .AVI file containing the same test video and sound
+ * as above, only that both streams will be compressed this time. This will
+ * only work if you have the necessary encoder elements installed of course.
+ * </refsect2>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gst/gst-i18n-plugin.h"
+#include <stdlib.h>
+#include <string.h>
+
+#include <gst/video/video.h>
+
+#include "gstavimux.h"
+
+GST_DEBUG_CATEGORY_STATIC (avimux_debug);
+#define GST_CAT_DEFAULT avimux_debug
+
+enum
+{
+ ARG_0,
+ ARG_BIGFILE
+};
+
+#define DEFAULT_BIGFILE TRUE
+
+static const GstElementDetails gst_avi_mux_details =
+GST_ELEMENT_DETAILS ("Avi muxer",
+ "Codec/Muxer",
+ "Muxes audio and video into an avi stream",
+ "Ronald Bultje <rbultje@ronald.bitfreak.net>");
+
+static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("video/x-msvideo")
+ );
+
+static GstStaticPadTemplate video_sink_factory =
+ GST_STATIC_PAD_TEMPLATE ("video_%d",
+ GST_PAD_SINK,
+ GST_PAD_REQUEST,
+ GST_STATIC_CAPS ("video/x-raw-yuv, "
+ "format = (fourcc) { YUY2, I420 }, "
+ "width = (int) [ 16, 4096 ], "
+ "height = (int) [ 16, 4096 ], "
+ "framerate = (fraction) [ 0, MAX ]; "
+ "image/jpeg, "
+ "width = (int) [ 16, 4096 ], "
+ "height = (int) [ 16, 4096 ], "
+ "framerate = (fraction) [ 0, MAX ]; "
+ "video/x-divx, "
+ "width = (int) [ 16, 4096 ], "
+ "height = (int) [ 16, 4096 ], "
+ "framerate = (fraction) [ 0, MAX ], "
+ "divxversion = (int) [ 3, 5 ]; "
+ "video/x-xvid, "
+ "width = (int) [ 16, 4096 ], "
+ "height = (int) [ 16, 4096 ], "
+ "framerate = (fraction) [ 0, MAX ]; "
+ "video/x-3ivx, "
+ "width = (int) [ 16, 4096 ], "
+ "height = (int) [ 16, 4096 ], "
+ "framerate = (fraction) [ 0, MAX ]; "
+ "video/x-msmpeg, "
+ "width = (int) [ 16, 4096 ], "
+ "height = (int) [ 16, 4096 ], "
+ "framerate = (fraction) [ 0, MAX ], "
+ "msmpegversion = (int) [ 41, 43 ]; "
+ "video/mpeg, "
+ "width = (int) [ 16, 4096 ], "
+ "height = (int) [ 16, 4096 ], "
+ "framerate = (fraction) [ 0, MAX ], "
+ "mpegversion = (int) { 1, 2, 4}, "
+ "systemstream = (boolean) FALSE; "
+ "video/x-h263, "
+ "width = (int) [ 16, 4096 ], "
+ "height = (int) [ 16, 4096 ], "
+ "framerate = (fraction) [ 0, MAX ]; "
+ "video/x-h264, "
+ "width = (int) [ 16, 4096 ], "
+ "height = (int) [ 16, 4096 ], "
+ "framerate = (fraction) [ 0, MAX ]; "
+ "video/x-dv, "
+ "width = (int) 720, "
+ "height = (int) { 576, 480 }, "
+ "framerate = (fraction) [ 0, MAX ], "
+ "systemstream = (boolean) FALSE; "
+ "video/x-huffyuv, "
+ "width = (int) [ 16, 4096 ], "
+ "height = (int) [ 16, 4096 ], " "framerate = (fraction) [ 0, MAX ];"
+ "video/x-dirac, "
+ "width = (int) [ 16, 4096 ], "
+ "height = (int) [ 16, 4096 ], " "framerate = (fraction) [ 0, MAX ];"
+ "video/x-wmv, "
+ "width = (int) [ 16, 4096 ], "
+ "height = (int) [ 16, 4096 ], " "framerate = (fraction) [ 0, MAX ], "
+ "wmvversion = (int) [ 1, 3]")
+ );
+
+static GstStaticPadTemplate audio_sink_factory =
+ GST_STATIC_PAD_TEMPLATE ("audio_%d",
+ GST_PAD_SINK,
+ GST_PAD_REQUEST,
+ GST_STATIC_CAPS ("audio/x-raw-int, "
+ "endianness = (int) LITTLE_ENDIAN, "
+ "signed = (boolean) { TRUE, FALSE }, "
+ "width = (int) { 8, 16 }, "
+ "depth = (int) { 8, 16 }, "
+ "rate = (int) [ 1000, 96000 ], "
+ "channels = (int) [ 1, 2 ]; "
+ "audio/mpeg, "
+ "mpegversion = (int) 1, "
+ "layer = (int) [ 1, 3 ], "
+ "rate = (int) [ 1000, 96000 ], " "channels = (int) [ 1, 2 ]; "
+ "audio/mpeg, "
+ "mpegversion = (int) 4, "
+ "rate = (int) [ 1000, 96000 ], " "channels = (int) [ 1, 2 ]; "
+/*#if 0 VC6 doesn't support #if here ...
+ "audio/x-vorbis, "
+ "rate = (int) [ 1000, 96000 ], " "channels = (int) [ 1, 2 ]; "
+#endif*/
+ "audio/x-ac3, "
+ "rate = (int) [ 1000, 96000 ], " "channels = (int) [ 1, 2 ]; "
+ "audio/x-alaw, "
+ "rate = (int) [ 1000, 48000 ], " "channels = (int) [ 1, 2 ]; "
+ "audio/x-mulaw, "
+ "rate = (int) [ 1000, 48000 ], " "channels = (int) [ 1, 2 ]; "
+ "audio/x-wma, "
+ "rate = (int) [ 1000, 96000 ], " "channels = (int) [ 1, 2 ], "
+ "wmaversion = (int) [ 1, 2 ] ")
+ );
+
+static void gst_avi_mux_base_init (gpointer g_class);
+static void gst_avi_mux_class_init (GstAviMuxClass * klass);
+static void gst_avi_mux_init (GstAviMux * avimux);
+static void gst_avi_mux_pad_reset (GstAviPad * avipad, gboolean free);
+
+static GstFlowReturn gst_avi_mux_collect_pads (GstCollectPads * pads,
+ GstAviMux * avimux);
+static gboolean gst_avi_mux_handle_event (GstPad * pad, GstEvent * event);
+static GstPad *gst_avi_mux_request_new_pad (GstElement * element,
+ GstPadTemplate * templ, const gchar * name);
+static void gst_avi_mux_release_pad (GstElement * element, GstPad * pad);
+static void gst_avi_mux_set_property (GObject * object,
+ guint prop_id, const GValue * value, GParamSpec * pspec);
+static void gst_avi_mux_get_property (GObject * object,
+ guint prop_id, GValue * value, GParamSpec * pspec);
+static GstStateChangeReturn gst_avi_mux_change_state (GstElement * element,
+ GstStateChange transition);
+
+static GstElementClass *parent_class = NULL;
+
+GType
+gst_avi_mux_get_type (void)
+{
+ static GType avimux_type = 0;
+
+ if (!avimux_type) {
+ static const GTypeInfo avimux_info = {
+ sizeof (GstAviMuxClass),
+ gst_avi_mux_base_init,
+ NULL,
+ (GClassInitFunc) gst_avi_mux_class_init,
+ NULL,
+ NULL,
+ sizeof (GstAviMux),
+ 0,
+ (GInstanceInitFunc) gst_avi_mux_init,
+ };
+ static const GInterfaceInfo tag_setter_info = {
+ NULL,
+ NULL,
+ NULL
+ };
+
+ avimux_type =
+ g_type_register_static (GST_TYPE_ELEMENT, "GstAviMux", &avimux_info, 0);
+ g_type_add_interface_static (avimux_type, GST_TYPE_TAG_SETTER,
+ &tag_setter_info);
+ }
+ return avimux_type;
+}
+
+static void
+gst_avi_mux_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 (&src_factory));
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&audio_sink_factory));
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&video_sink_factory));
+
+ gst_element_class_set_details (element_class, &gst_avi_mux_details);
+
+ GST_DEBUG_CATEGORY_INIT (avimux_debug, "avimux", 0, "Muxer for AVI streams");
+}
+
+static void
+gst_avi_mux_finalize (GObject * object)
+{
+ GstAviMux *mux = GST_AVI_MUX (object);
+ GSList *node;
+
+ /* completely free each sinkpad */
+ node = mux->sinkpads;
+ while (node) {
+ GstAviPad *avipad = (GstAviPad *) node->data;
+
+ node = node->next;
+
+ gst_avi_mux_pad_reset (avipad, TRUE);
+ g_free (avipad);
+ }
+ g_slist_free (mux->sinkpads);
+ mux->sinkpads = NULL;
+
+ g_free (mux->idx);
+ mux->idx = NULL;
+
+ gst_object_unref (mux->collect);
+
+ G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+gst_avi_mux_class_init (GstAviMuxClass * klass)
+{
+ GObjectClass *gobject_class;
+ GstElementClass *gstelement_class;
+
+ gobject_class = (GObjectClass *) klass;
+ gstelement_class = (GstElementClass *) klass;
+
+ parent_class = g_type_class_peek_parent (klass);
+
+ gobject_class->get_property = gst_avi_mux_get_property;
+ gobject_class->set_property = gst_avi_mux_set_property;
+ gobject_class->finalize = gst_avi_mux_finalize;
+
+ g_object_class_install_property (gobject_class, ARG_BIGFILE,
+ g_param_spec_boolean ("bigfile", "Bigfile Support (>2GB)",
+ "Support for openDML-2.0 (big) AVI files", DEFAULT_BIGFILE,
+ G_PARAM_READWRITE));
+
+ gstelement_class->request_new_pad =
+ GST_DEBUG_FUNCPTR (gst_avi_mux_request_new_pad);
+ gstelement_class->release_pad = GST_DEBUG_FUNCPTR (gst_avi_mux_release_pad);
+ gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_avi_mux_change_state);
+}
+
+/* reset pad to initial state
+ * free - if true, release all, not only stream related, data */
+static void
+gst_avi_mux_pad_reset (GstAviPad * avipad, gboolean free)
+{
+ /* generic part */
+ memset (&(avipad->hdr), 0, sizeof (gst_riff_strh));
+
+ memset (&(avipad->idx[0]), 0, sizeof (avipad->idx));
+
+ if (free) {
+ g_free (avipad->tag);
+ avipad->tag = NULL;
+ g_free (avipad->idx_tag);
+ avipad->idx_tag = NULL;
+ }
+
+ if (avipad->is_video) {
+ GstAviVideoPad *vidpad = (GstAviVideoPad *) avipad;
+
+ avipad->hdr.type = GST_MAKE_FOURCC ('v', 'i', 'd', 's');
+ if (vidpad->vids_codec_data) {
+ gst_buffer_unref (vidpad->vids_codec_data);
+ vidpad->vids_codec_data = NULL;
+ }
+
+ memset (&(vidpad->vids), 0, sizeof (gst_riff_strf_vids));
+ memset (&(vidpad->vprp), 0, sizeof (gst_riff_vprp));
+ } else {
+ GstAviAudioPad *audpad = (GstAviAudioPad *) avipad;
+
+ avipad->hdr.type = GST_MAKE_FOURCC ('a', 'u', 'd', 's');
+ if (audpad->auds_codec_data) {
+ gst_buffer_unref (audpad->auds_codec_data);
+ audpad->auds_codec_data = NULL;
+ }
+
+ memset (&(audpad->auds), 0, sizeof (gst_riff_strf_auds));
+ }
+}
+
+static void
+gst_avi_mux_reset (GstAviMux * avimux)
+{
+ GSList *node, *newlist = NULL;
+
+ /* free and reset each sinkpad */
+ node = avimux->sinkpads;
+ while (node) {
+ GstAviPad *avipad = (GstAviPad *) node->data;
+
+ node = node->next;
+
+ gst_avi_mux_pad_reset (avipad, FALSE);
+ /* if this pad has collectdata, keep it, otherwise dump it completely */
+ if (avipad->collect)
+ newlist = g_slist_append (newlist, avipad);
+ else {
+ gst_avi_mux_pad_reset (avipad, TRUE);
+ g_free (avipad);
+ }
+ }
+
+ /* free the old list of sinkpads, only keep the real collecting ones */
+ g_slist_free (avimux->sinkpads);
+ avimux->sinkpads = newlist;
+
+ /* avi data */
+ avimux->num_frames = 0;
+ memset (&(avimux->avi_hdr), 0, sizeof (gst_riff_avih));
+ avimux->avi_hdr.max_bps = 10000000;
+ avimux->codec_data_size = 0;
+
+ if (avimux->tags_snap) {
+ gst_tag_list_free (avimux->tags_snap);
+ avimux->tags_snap = NULL;
+ }
+
+ g_free (avimux->idx);
+ avimux->idx = NULL;
+
+ /* state info */
+ avimux->write_header = TRUE;
+
+ /* tags */
+ gst_tag_setter_reset_tags (GST_TAG_SETTER (avimux));
+}
+
+static void
+gst_avi_mux_init (GstAviMux * avimux)
+{
+ avimux->srcpad = gst_pad_new_from_static_template (&src_factory, "src");
+ gst_pad_use_fixed_caps (avimux->srcpad);
+ gst_element_add_pad (GST_ELEMENT (avimux), avimux->srcpad);
+
+ /* property */
+ avimux->enable_large_avi = DEFAULT_BIGFILE;
+
+ avimux->collect = gst_collect_pads_new ();
+ gst_collect_pads_set_function (avimux->collect,
+ (GstCollectPadsFunction) (GST_DEBUG_FUNCPTR (gst_avi_mux_collect_pads)),
+ avimux);
+
+ /* set to clean state */
+ gst_avi_mux_reset (avimux);
+}
+
+static gboolean
+gst_avi_mux_vidsink_set_caps (GstPad * pad, GstCaps * vscaps)
+{
+ GstAviMux *avimux;
+ GstAviVideoPad *avipad;
+ GstAviCollectData *collect_pad;
+ GstStructure *structure;
+ const gchar *mimetype;
+ const GValue *fps, *par;
+ const GValue *codec_data;
+ gint width, height;
+ gint par_n, par_d;
+
+ avimux = GST_AVI_MUX (gst_pad_get_parent (pad));
+
+ /* find stream data */
+ collect_pad = (GstAviCollectData *) gst_pad_get_element_private (pad);
+ g_assert (collect_pad);
+ avipad = (GstAviVideoPad *) collect_pad->avipad;
+ g_assert (avipad);
+ g_assert (avipad->parent.is_video);
+ g_assert (avipad->parent.hdr.type == GST_MAKE_FOURCC ('v', 'i', 'd', 's'));
+
+ GST_DEBUG_OBJECT (avimux, "%s:%s, caps=%" GST_PTR_FORMAT,
+ GST_DEBUG_PAD_NAME (pad), vscaps);
+
+ structure = gst_caps_get_structure (vscaps, 0);
+ mimetype = gst_structure_get_name (structure);
+
+ /* global */
+ avipad->vids.size = sizeof (gst_riff_strf_vids);
+ avipad->vids.planes = 1;
+ if (!gst_structure_get_int (structure, "width", &width) ||
+ !gst_structure_get_int (structure, "height", &height)) {
+ goto refuse_caps;
+ }
+
+ avipad->vids.width = width;
+ avipad->vids.height = height;
+
+ fps = gst_structure_get_value (structure, "framerate");
+ if (fps == NULL || !GST_VALUE_HOLDS_FRACTION (fps))
+ goto refuse_caps;
+
+ avipad->parent.hdr.rate = gst_value_get_fraction_numerator (fps);
+ avipad->parent.hdr.scale = gst_value_get_fraction_denominator (fps);
+
+ /* (pixel) aspect ratio data, if any */
+ par = gst_structure_get_value (structure, "pixel-aspect-ratio");
+ /* only use video properties header if there is non-trivial aspect info */
+ if (par && GST_VALUE_HOLDS_FRACTION (par) &&
+ ((par_n = gst_value_get_fraction_numerator (par)) !=
+ (par_d = gst_value_get_fraction_denominator (par)))) {
+ GValue to_ratio = { 0, };
+ guint ratio_n, ratio_d;
+
+ /* some fraction voodoo to obtain simplest possible ratio */
+ g_value_init (&to_ratio, GST_TYPE_FRACTION);
+ gst_value_set_fraction (&to_ratio, width * par_n, height * par_d);
+ ratio_n = gst_value_get_fraction_numerator (&to_ratio);
+ ratio_d = gst_value_get_fraction_denominator (&to_ratio);
+ GST_DEBUG_OBJECT (avimux, "generating vprp data with aspect ratio %d/%d",
+ ratio_n, ratio_d);
+ /* simply fill in */
+ avipad->vprp.vert_rate = avipad->parent.hdr.rate / avipad->parent.hdr.scale;
+ avipad->vprp.hor_t_total = width;
+ avipad->vprp.vert_lines = height;
+ avipad->vprp.aspect = (ratio_n) << 16 | (ratio_d & 0xffff);
+ avipad->vprp.width = width;
+ avipad->vprp.height = height;
+ avipad->vprp.fields = 1;
+ avipad->vprp.field_info[0].compressed_bm_height = height;
+ avipad->vprp.field_info[0].compressed_bm_width = width;
+ avipad->vprp.field_info[0].valid_bm_height = height;
+ avipad->vprp.field_info[0].valid_bm_width = width;
+ }
+
+ /* codec initialization data, if any */
+ codec_data = gst_structure_get_value (structure, "codec_data");
+ if (codec_data) {
+ avipad->vids_codec_data = gst_value_get_buffer (codec_data);
+ gst_buffer_ref (avipad->vids_codec_data);
+ /* keep global track of size */
+ avimux->codec_data_size += GST_BUFFER_SIZE (avipad->vids_codec_data);
+ }
+
+ if (!strcmp (mimetype, "video/x-raw-yuv")) {
+ guint32 format;
+
+ gst_structure_get_fourcc (structure, "format", &format);
+ avipad->vids.compression = format;
+ switch (format) {
+ case GST_MAKE_FOURCC ('Y', 'U', 'Y', '2'):
+ avipad->vids.bit_cnt = 16;
+ break;
+ case GST_MAKE_FOURCC ('I', '4', '2', '0'):
+ avipad->vids.bit_cnt = 12;
+ break;
+ }
+ } else {
+ avipad->vids.bit_cnt = 24;
+ avipad->vids.compression = 0;
+
+ /* find format */
+ if (!strcmp (mimetype, "video/x-huffyuv")) {
+ avipad->vids.compression = GST_MAKE_FOURCC ('H', 'F', 'Y', 'U');
+ } else if (!strcmp (mimetype, "image/jpeg")) {
+ avipad->vids.compression = GST_MAKE_FOURCC ('M', 'J', 'P', 'G');
+ } else if (!strcmp (mimetype, "video/x-divx")) {
+ gint divxversion;
+
+ gst_structure_get_int (structure, "divxversion", &divxversion);
+ switch (divxversion) {
+ case 3:
+ avipad->vids.compression = GST_MAKE_FOURCC ('D', 'I', 'V', '3');
+ break;
+ case 4:
+ avipad->vids.compression = GST_MAKE_FOURCC ('D', 'I', 'V', 'X');
+ break;
+ case 5:
+ avipad->vids.compression = GST_MAKE_FOURCC ('D', 'X', '5', '0');
+ break;
+ }
+ } else if (!strcmp (mimetype, "video/x-xvid")) {
+ avipad->vids.compression = GST_MAKE_FOURCC ('X', 'V', 'I', 'D');
+ } else if (!strcmp (mimetype, "video/x-3ivx")) {
+ avipad->vids.compression = GST_MAKE_FOURCC ('3', 'I', 'V', '2');
+ } else if (gst_structure_has_name (structure, "video/x-msmpeg")) {
+ gint msmpegversion;
+
+ gst_structure_get_int (structure, "msmpegversion", &msmpegversion);
+ switch (msmpegversion) {
+ case 41:
+ avipad->vids.compression = GST_MAKE_FOURCC ('M', 'P', 'G', '4');
+ break;
+ case 42:
+ avipad->vids.compression = GST_MAKE_FOURCC ('M', 'P', '4', '2');
+ break;
+ case 43:
+ avipad->vids.compression = GST_MAKE_FOURCC ('M', 'P', '4', '3');
+ break;
+ default:
+ GST_INFO ("unhandled msmpegversion : %d, fall back to fourcc=MPEG",
+ msmpegversion);
+ avipad->vids.compression = GST_MAKE_FOURCC ('M', 'P', 'E', 'G');
+ break;
+ }
+ } else if (!strcmp (mimetype, "video/x-dv")) {
+ avipad->vids.compression = GST_MAKE_FOURCC ('D', 'V', 'S', 'D');
+ } else if (!strcmp (mimetype, "video/x-h263")) {
+ avipad->vids.compression = GST_MAKE_FOURCC ('H', '2', '6', '3');
+ } else if (!strcmp (mimetype, "video/x-h264")) {
+ avipad->vids.compression = GST_MAKE_FOURCC ('H', '2', '6', '4');
+ } else if (!strcmp (mimetype, "video/mpeg")) {
+ gint mpegversion;
+
+ gst_structure_get_int (structure, "mpegversion", &mpegversion);
+
+ switch (mpegversion) {
+ case 2:
+ avipad->vids.compression = GST_MAKE_FOURCC ('M', 'P', 'G', '2');
+ break;
+ case 4:
+ /* mplayer/ffmpeg might not work with DIVX, but with FMP4 */
+ avipad->vids.compression = GST_MAKE_FOURCC ('D', 'I', 'V', 'X');
+ break;
+ default:
+ GST_INFO ("unhandled mpegversion : %d, fall back to fourcc=MPEG",
+ mpegversion);
+ avipad->vids.compression = GST_MAKE_FOURCC ('M', 'P', 'E', 'G');
+ break;
+ }
+ } else if (!strcmp (mimetype, "video/x-dirac")) {
+ avipad->vids.compression = GST_MAKE_FOURCC ('d', 'r', 'a', 'c');
+ } else if (!strcmp (mimetype, "video/x-wmv")) {
+ gint wmvversion;
+
+ if (gst_structure_get_int (structure, "wmvversion", &wmvversion)) {
+ switch (wmvversion) {
+ case 1:
+ avipad->vids.compression = GST_MAKE_FOURCC ('W', 'M', 'V', '1');
+ break;
+ case 2:
+ avipad->vids.compression = GST_MAKE_FOURCC ('W', 'M', 'V', '2');
+ break;
+ case 3:
+ avipad->vids.compression = GST_MAKE_FOURCC ('W', 'M', 'V', '3');
+ default:
+ break;
+ }
+ }
+ }
+
+ if (!avipad->vids.compression)
+ goto refuse_caps;
+ }
+
+ avipad->parent.hdr.fcc_handler = avipad->vids.compression;
+ avipad->vids.image_size = avipad->vids.height * avipad->vids.width;
+ /* hm, maybe why avi only handles one stream well ... */
+ avimux->avi_hdr.width = avipad->vids.width;
+ avimux->avi_hdr.height = avipad->vids.height;
+ avimux->avi_hdr.us_frame = 1000000. * avipad->parent.hdr.scale /
+ avipad->parent.hdr.rate;
+
+ gst_object_unref (avimux);
+ return TRUE;
+
+refuse_caps:
+ {
+ GST_WARNING_OBJECT (avimux, "refused caps %" GST_PTR_FORMAT, vscaps);
+ gst_object_unref (avimux);
+ return FALSE;
+ }
+}
+
+static gboolean
+gst_avi_mux_audsink_set_caps (GstPad * pad, GstCaps * vscaps)
+{
+ GstAviMux *avimux;
+ GstAviAudioPad *avipad;
+ GstAviCollectData *collect_pad;
+ GstStructure *structure;
+ const gchar *mimetype;
+ const GValue *codec_data;
+ gint channels, rate;
+
+ avimux = GST_AVI_MUX (gst_pad_get_parent (pad));
+
+ /* find stream data */
+ collect_pad = (GstAviCollectData *) gst_pad_get_element_private (pad);
+ g_assert (collect_pad);
+ avipad = (GstAviAudioPad *) collect_pad->avipad;
+ g_assert (avipad);
+ g_assert (!avipad->parent.is_video);
+ g_assert (avipad->parent.hdr.type == GST_MAKE_FOURCC ('a', 'u', 'd', 's'));
+
+ GST_DEBUG_OBJECT (avimux, "%s:%s, caps=%" GST_PTR_FORMAT,
+ GST_DEBUG_PAD_NAME (pad), vscaps);
+
+ structure = gst_caps_get_structure (vscaps, 0);
+ mimetype = gst_structure_get_name (structure);
+
+ /* we want these for all */
+ if (!gst_structure_get_int (structure, "channels", &channels) ||
+ !gst_structure_get_int (structure, "rate", &rate)) {
+ goto refuse_caps;
+ }
+
+ avipad->auds.channels = channels;
+ avipad->auds.rate = rate;
+
+ /* codec initialization data, if any */
+ codec_data = gst_structure_get_value (structure, "codec_data");
+ if (codec_data) {
+ avipad->auds_codec_data = gst_value_get_buffer (codec_data);
+ gst_buffer_ref (avipad->auds_codec_data);
+ /* keep global track of size */
+ avimux->codec_data_size += GST_BUFFER_SIZE (avipad->auds_codec_data);
+ }
+
+ if (!strcmp (mimetype, "audio/x-raw-int")) {
+ gint width, depth;
+ gboolean signedness;
+
+ avipad->auds.format = GST_RIFF_WAVE_FORMAT_PCM;
+
+ if (!gst_structure_get_int (structure, "width", &width) ||
+ !gst_structure_get_int (structure, "depth", &depth) ||
+ !gst_structure_get_boolean (structure, "signed", &signedness)) {
+ GST_DEBUG_OBJECT (avimux,
+ "broken caps, width/depth/signed field missing");
+ goto refuse_caps;
+ }
+
+ /* no clear place to put different values for these while keeping to spec */
+ if (width != depth) {
+ GST_DEBUG_OBJECT (avimux, "width must be same as depth!");
+ goto refuse_caps;
+ }
+
+ /* because that's the way the caps will be recreated from riff data */
+ if ((width == 8 && signedness) || (width == 16 && !signedness)) {
+ GST_DEBUG_OBJECT (avimux,
+ "8-bit PCM must be unsigned, 16-bit PCM signed");
+ goto refuse_caps;
+ }
+
+ avipad->auds.blockalign = width;
+ avipad->auds.size = (width == 8) ? 8 : depth;
+
+ /* set some more info straight */
+ avipad->auds.blockalign /= 8;
+ avipad->auds.blockalign *= avipad->auds.channels;
+ avipad->auds.av_bps = avipad->auds.blockalign * avipad->auds.rate;
+ } else {
+ avipad->auds.format = 0;
+ /* set some defaults */
+ avipad->auds.blockalign = 1;
+ avipad->auds.av_bps = 0;
+ avipad->auds.size = 16;
+
+ if (!strcmp (mimetype, "audio/mpeg")) {
+ gint mpegversion;
+
+ gst_structure_get_int (structure, "mpegversion", &mpegversion);
+ switch (mpegversion) {
+ case 1:{
+ gint layer = 3;
+
+ gst_structure_get_int (structure, "layer", &layer);
+ switch (layer) {
+ case 3:
+ avipad->auds.format = GST_RIFF_WAVE_FORMAT_MPEGL3;
+ break;
+ case 1:
+ case 2:
+ avipad->auds.format = GST_RIFF_WAVE_FORMAT_MPEGL12;
+ break;
+ }
+ break;
+ }
+ case 4:
+ GST_WARNING ("AAC");
+ avipad->auds.format = GST_RIFF_WAVE_FORMAT_AAC;
+ break;
+ }
+ } else if (!strcmp (mimetype, "audio/x-vorbis")) {
+ avipad->auds.format = GST_RIFF_WAVE_FORMAT_VORBIS3;
+ } else if (!strcmp (mimetype, "audio/x-ac3")) {
+ avipad->auds.format = GST_RIFF_WAVE_FORMAT_A52;
+ } else if (!strcmp (mimetype, "audio/x-alaw")) {
+ avipad->auds.format = GST_RIFF_WAVE_FORMAT_ALAW;
+ avipad->auds.size = 8;
+ avipad->auds.blockalign = avipad->auds.channels;
+ avipad->auds.av_bps = avipad->auds.blockalign * avipad->auds.rate;
+ } else if (!strcmp (mimetype, "audio/x-mulaw")) {
+ avipad->auds.format = GST_RIFF_WAVE_FORMAT_MULAW;
+ avipad->auds.size = 8;
+ avipad->auds.blockalign = avipad->auds.channels;
+ avipad->auds.av_bps = avipad->auds.blockalign * avipad->auds.rate;
+ } else if (!strcmp (mimetype, "audio/x-wma")) {
+ gint version;
+ gint bitrate;
+ gint block_align;
+
+ if (gst_structure_get_int (structure, "wmaversion", &version)) {
+ switch (version) {
+ case 1:
+ avipad->auds.format = GST_RIFF_WAVE_FORMAT_WMAV1;
+ break;
+ case 2:
+ avipad->auds.format = GST_RIFF_WAVE_FORMAT_WMAV2;
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (avipad->auds.format != 0) {
+ if (gst_structure_get_int (structure, "block_align", &block_align)) {
+ avipad->auds.blockalign = block_align;
+ }
+ if (gst_structure_get_int (structure, "bitrate", &bitrate)) {
+ avipad->auds.av_bps = bitrate / 8;
+ }
+ }
+ }
+ }
+
+ if (!avipad->auds.format)
+ goto refuse_caps;
+
+ /* by spec, hdr.rate is av_bps related, is calculated that way in stop_file,
+ * and reduces to sample rate in PCM like cases */
+ avipad->parent.hdr.rate = avipad->auds.av_bps / avipad->auds.blockalign;
+ avipad->parent.hdr.samplesize = avipad->auds.blockalign;
+ avipad->parent.hdr.scale = 1;
+
+ gst_object_unref (avimux);
+ return TRUE;
+
+refuse_caps:
+ {
+ GST_WARNING_OBJECT (avimux, "refused caps %" GST_PTR_FORMAT, vscaps);
+ gst_object_unref (avimux);
+ return FALSE;
+ }
+}
+
+
+static GstPad *
+gst_avi_mux_request_new_pad (GstElement * element,
+ GstPadTemplate * templ, const gchar * req_name)
+{
+ GstAviMux *avimux;
+ GstPad *newpad;
+ GstAviPad *avipad;
+ GstElementClass *klass;
+
+ g_return_val_if_fail (templ != NULL, NULL);
+
+ if (templ->direction != GST_PAD_SINK)
+ goto wrong_direction;
+
+ g_return_val_if_fail (GST_IS_AVI_MUX (element), NULL);
+ avimux = GST_AVI_MUX (element);
+
+ if (!avimux->write_header)
+ goto too_late;
+
+ klass = GST_ELEMENT_GET_CLASS (element);
+
+ if (templ == gst_element_class_get_pad_template (klass, "audio_%d")) {
+ gchar *name;
+
+ /* setup pad */
+ name = g_strdup_printf ("audio_%02d", avimux->audio_pads);
+ GST_DEBUG_OBJECT (avimux, "adding new pad: %s", name);
+ newpad = gst_pad_new_from_template (templ, name);
+ g_free (name);
+ gst_pad_set_setcaps_function (newpad,
+ GST_DEBUG_FUNCPTR (gst_avi_mux_audsink_set_caps));
+
+ /* init pad specific data */
+ avipad = g_malloc0 (sizeof (GstAviAudioPad));
+ avipad->is_video = FALSE;
+ avipad->hdr.type = GST_MAKE_FOURCC ('a', 'u', 'd', 's');
+ avimux->audio_pads++;
+ /* audio goes last */
+ avimux->sinkpads = g_slist_append (avimux->sinkpads, avipad);
+ } else if (templ == gst_element_class_get_pad_template (klass, "video_%d")) {
+ /* though streams are pretty generic and relatively self-contained,
+ * some video info goes in a single avi header -and therefore mux struct-
+ * so video restricted to one stream */
+ if (avimux->video_pads > 0)
+ return NULL;
+ /* setup pad */
+ GST_DEBUG_OBJECT (avimux, "adding new pad: video_00");
+ newpad = gst_pad_new_from_template (templ, "video_00");
+ gst_pad_set_setcaps_function (newpad,
+ GST_DEBUG_FUNCPTR (gst_avi_mux_vidsink_set_caps));
+ avipad = g_malloc0 (sizeof (GstAviVideoPad));
+
+ /* init pad specific data */
+ avipad->is_video = TRUE;
+ avipad->hdr.type = GST_MAKE_FOURCC ('v', 'i', 'd', 's');
+ avimux->video_pads++;
+ /* video goes first */
+ avimux->sinkpads = g_slist_prepend (avimux->sinkpads, avipad);
+ } else
+ goto wrong_template;
+
+ avipad->collect = gst_collect_pads_add_pad (avimux->collect,
+ newpad, sizeof (GstAviCollectData));
+ ((GstAviCollectData *) (avipad->collect))->avipad = avipad;
+ /* FIXME: hacked way to override/extend the event function of
+ * GstCollectPads; because it sets its own event function giving the
+ * element no access to events */
+ avimux->collect_event = (GstPadEventFunction) GST_PAD_EVENTFUNC (newpad);
+ gst_pad_set_event_function (newpad,
+ GST_DEBUG_FUNCPTR (gst_avi_mux_handle_event));
+
+ gst_element_add_pad (element, newpad);
+
+ return newpad;
+
+ /* ERRORS */
+wrong_direction:
+ {
+ g_warning ("avimux: request pad that is not a SINK pad\n");
+ return NULL;
+ }
+too_late:
+ {
+ g_warning ("avimux: request pad cannot be added after streaming started\n");
+ return NULL;
+ }
+wrong_template:
+ {
+ g_warning ("avimuxx: this is not our template!\n");
+ return NULL;
+ }
+}
+
+static void
+gst_avi_mux_release_pad (GstElement * element, GstPad * pad)
+{
+ GstAviMux *avimux = GST_AVI_MUX (element);
+ GSList *node;
+
+ node = avimux->sinkpads;
+ while (node) {
+ GstAviPad *avipad = (GstAviPad *) node->data;
+
+ if (avipad->collect->pad == pad) {
+ /* pad count should not be adjusted,
+ * as it also represent number of streams present */
+ avipad->collect = NULL;
+ GST_DEBUG_OBJECT (avimux, "removed pad '%s'", GST_PAD_NAME (pad));
+ gst_collect_pads_remove_pad (avimux->collect, pad);
+ gst_element_remove_pad (element, pad);
+ /* if not started yet, we can remove any sign this pad ever existed */
+ /* in this case _start will take care of the real pad count */
+ if (avimux->write_header) {
+ avimux->sinkpads = g_slist_remove (avimux->sinkpads, avipad);
+ gst_avi_mux_pad_reset (avipad, TRUE);
+ g_free (avipad);
+ }
+ return;
+ }
+
+ node = node->next;
+ }
+
+ g_warning ("Unknown pad %s", GST_PAD_NAME (pad));
+}
+
+/* maybe some of these functions should be moved to riff.h? */
+
+/* DISCLAIMER: this function is fairly ugly. So be it (i.e. it makes the rest easier)
+ * so is this struct */
+
+typedef struct _GstMarkedBuffer
+{
+ guint *highmark;
+ GstBuffer *buffer;
+} GstMarkedBuffer;
+
+static void
+gst_avi_mux_write_tag (const GstTagList * list, const gchar * tag,
+ gpointer data)
+{
+ const struct
+ {
+ guint32 fcc;
+ gchar *tag;
+ } rifftags[] = {
+ {
+ GST_RIFF_INFO_IARL, GST_TAG_LOCATION}, {
+ GST_RIFF_INFO_IART, GST_TAG_ARTIST}, {
+ GST_RIFF_INFO_ICMT, GST_TAG_COMMENT}, {
+ GST_RIFF_INFO_ICOP, GST_TAG_COPYRIGHT}, {
+ GST_RIFF_INFO_ICRD, GST_TAG_DATE}, {
+ GST_RIFF_INFO_IGNR, GST_TAG_GENRE}, {
+ GST_RIFF_INFO_IKEY, GST_TAG_KEYWORDS}, {
+ GST_RIFF_INFO_INAM, GST_TAG_TITLE}, {
+ GST_RIFF_INFO_ISFT, GST_TAG_ENCODER}, {
+ GST_RIFF_INFO_ISRC, GST_TAG_ISRC}, {
+ 0, NULL}
+ };
+ gint n, len, plen;
+ GstBuffer *buf = ((GstMarkedBuffer *) data)->buffer;
+ guint *highmark = ((GstMarkedBuffer *) data)->highmark;
+ guint8 *buffdata = GST_BUFFER_DATA (buf) + *highmark;
+ gchar *str;
+
+ for (n = 0; rifftags[n].fcc != 0; n++) {
+ if (!strcmp (rifftags[n].tag, tag) &&
+ gst_tag_list_get_string (list, tag, &str) && str) {
+ len = strlen (str);
+ plen = len + 1;
+ if (plen & 1)
+ plen++;
+ if (GST_BUFFER_SIZE (buf) >= *highmark + 8 + plen) {
+ GST_WRITE_UINT32_LE (buffdata, rifftags[n].fcc);
+ GST_WRITE_UINT32_LE (buffdata + 4, len + 1);
+ memcpy (buffdata + 8, str, len);
+ buffdata[8 + len] = 0;
+ *highmark += 8 + plen;
+ GST_DEBUG ("writing tag in buffer %p, highmark at %d", buf, *highmark);
+ }
+ g_free (str);
+ break;
+ }
+ }
+}
+
+#define ODML_SUPERINDEX_SIZE \
+ (32 + GST_AVI_SUPERINDEX_COUNT * sizeof (gst_avi_superindex_entry))
+
+static GstBuffer *
+gst_avi_mux_riff_get_avi_header (GstAviMux * avimux)
+{
+ const GstTagList *tags;
+ GstBuffer *buffer;
+ guint8 *buffdata;
+ guint size = 0;
+ guint highmark = 0;
+
+ /* pointer to list size field */
+ guint8 *riff_size, *hdrl_size;
+ GSList *node;
+
+ GST_DEBUG_OBJECT (avimux, "creating avi header, data_size %u, idx_size %u",
+ avimux->data_size, avimux->idx_size);
+
+ if (avimux->tags_snap)
+ tags = avimux->tags_snap;
+ else {
+ /* need to make snapshot of current state of tags to ensure the same set
+ * is used next time around during header rewrite at the end */
+ tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (avimux));
+ if (tags)
+ tags = avimux->tags_snap = gst_tag_list_copy (tags);
+ }
+ if (tags) {
+ /* that should be the strlen of all tags + header sizes
+ * not all of tags end up in a avi, still this is a good estimate
+ */
+ gchar *str = gst_structure_to_string (tags);
+ size += strlen (str) + 8 * gst_structure_n_fields (tags);
+ g_free (str);
+ }
+
+ /* allocate the buffer, starting with some wild/safe upper bound */
+ size += avimux->codec_data_size + 100 + sizeof (gst_riff_avih)
+ + (g_slist_length (avimux->sinkpads) * (100 + sizeof (gst_riff_strh_full)
+ + sizeof (gst_riff_strf_vids)
+ + sizeof (gst_riff_vprp)
+ + sizeof (gst_riff_vprp_video_field_desc) * 2
+ + sizeof (gst_riff_strf_auds) + 2 + ODML_SUPERINDEX_SIZE));
+ buffer = gst_buffer_new_and_alloc (size);
+ buffdata = GST_BUFFER_DATA (buffer);
+ highmark = 0;
+ GST_DEBUG_OBJECT (avimux, "creating buffer %p, size %d, highmark at 0",
+ buffer, GST_BUFFER_SIZE (buffer));
+
+ /* avi header metadata */
+ memcpy (buffdata + 0, "RIFF", 4);
+ /* fill in RIFF size later */
+ riff_size = buffdata + 4;
+ memcpy (buffdata + 8, "AVI ", 4);
+ memcpy (buffdata + 12, "LIST", 4);
+ /* fill in header size later */
+ hdrl_size = buffdata + 16;
+ memcpy (buffdata + 20, "hdrl", 4);
+ memcpy (buffdata + 24, "avih", 4);
+ GST_WRITE_UINT32_LE (buffdata + 28, sizeof (gst_riff_avih));
+ buffdata += 32;
+ highmark += 32;
+
+ /* the AVI header itself */
+ GST_WRITE_UINT32_LE (buffdata + 0, avimux->avi_hdr.us_frame);
+ GST_WRITE_UINT32_LE (buffdata + 4, avimux->avi_hdr.max_bps);
+ GST_WRITE_UINT32_LE (buffdata + 8, avimux->avi_hdr.pad_gran);
+ GST_WRITE_UINT32_LE (buffdata + 12, avimux->avi_hdr.flags);
+ GST_WRITE_UINT32_LE (buffdata + 16, avimux->avi_hdr.tot_frames);
+ GST_WRITE_UINT32_LE (buffdata + 20, avimux->avi_hdr.init_frames);
+ GST_WRITE_UINT32_LE (buffdata + 24, avimux->avi_hdr.streams);
+ GST_WRITE_UINT32_LE (buffdata + 28, avimux->avi_hdr.bufsize);
+ GST_WRITE_UINT32_LE (buffdata + 32, avimux->avi_hdr.width);
+ GST_WRITE_UINT32_LE (buffdata + 36, avimux->avi_hdr.height);
+ GST_WRITE_UINT32_LE (buffdata + 40, avimux->avi_hdr.scale);
+ GST_WRITE_UINT32_LE (buffdata + 44, avimux->avi_hdr.rate);
+ GST_WRITE_UINT32_LE (buffdata + 48, avimux->avi_hdr.start);
+ GST_WRITE_UINT32_LE (buffdata + 52, avimux->avi_hdr.length);
+ buffdata += 56;
+ highmark += 56;
+
+ /* stream data */
+ node = avimux->sinkpads;
+ while (node) {
+ GstAviPad *avipad = (GstAviPad *) node->data;
+ GstAviVideoPad *vidpad = (GstAviVideoPad *) avipad;
+ GstAviAudioPad *audpad = (GstAviAudioPad *) avipad;
+ guint codec_size = 0, strl_size = 0, vprp_size = 0;
+
+ if (avipad->is_video) {
+ if (vidpad->vids_codec_data)
+ codec_size = GST_BUFFER_SIZE (vidpad->vids_codec_data);
+ strl_size = sizeof (gst_riff_strh_full) + sizeof (gst_riff_strf_vids)
+ + GST_ROUND_UP_2 (codec_size) + 4 * 5 + ODML_SUPERINDEX_SIZE;
+ if (vidpad->vprp.aspect) {
+ /* let's be on the safe side */
+ vidpad->vprp.fields = MIN (vidpad->vprp.fields,
+ GST_RIFF_VPRP_VIDEO_FIELDS);
+ vprp_size = G_STRUCT_OFFSET (gst_riff_vprp, field_info)
+ + (vidpad->vprp.fields * sizeof (gst_riff_vprp_video_field_desc));
+ strl_size += 4 * 2 + vprp_size;
+ }
+ } else {
+ if (audpad->auds_codec_data)
+ codec_size = GST_BUFFER_SIZE (audpad->auds_codec_data);
+ /* +2 is codec_size field, not part of gst_riff_strf_auds */
+ strl_size = sizeof (gst_riff_strh_full) + sizeof (gst_riff_strf_auds) + 2
+ + GST_ROUND_UP_2 (codec_size) + 4 * 5 + ODML_SUPERINDEX_SIZE;
+ }
+
+ /* stream list metadata */
+ memcpy (buffdata + 0, "LIST", 4);
+ GST_WRITE_UINT32_LE (buffdata + 4, strl_size);
+ memcpy (buffdata + 8, "strl", 4);
+ /* generic header */
+ memcpy (buffdata + 12, "strh", 4);
+ GST_WRITE_UINT32_LE (buffdata + 16, sizeof (gst_riff_strh_full));
+ /* the actual header */
+ GST_WRITE_UINT32_LE (buffdata + 20, avipad->hdr.type);
+ GST_WRITE_UINT32_LE (buffdata + 24, avipad->hdr.fcc_handler);
+ GST_WRITE_UINT32_LE (buffdata + 28, avipad->hdr.flags);
+ GST_WRITE_UINT32_LE (buffdata + 32, avipad->hdr.priority);
+ GST_WRITE_UINT32_LE (buffdata + 36, avipad->hdr.init_frames);
+ GST_WRITE_UINT32_LE (buffdata + 40, avipad->hdr.scale);
+ GST_WRITE_UINT32_LE (buffdata + 44, avipad->hdr.rate);
+ GST_WRITE_UINT32_LE (buffdata + 48, avipad->hdr.start);
+ GST_WRITE_UINT32_LE (buffdata + 52, avipad->hdr.length);
+ GST_WRITE_UINT32_LE (buffdata + 56, avipad->hdr.bufsize);
+ GST_WRITE_UINT32_LE (buffdata + 60, avipad->hdr.quality);
+ GST_WRITE_UINT32_LE (buffdata + 64, avipad->hdr.samplesize);
+ GST_WRITE_UINT16_LE (buffdata + 68, 0);
+ GST_WRITE_UINT16_LE (buffdata + 70, 0);
+ GST_WRITE_UINT16_LE (buffdata + 72, 0);
+ GST_WRITE_UINT16_LE (buffdata + 74, 0);
+ buffdata += 76;
+ highmark += 76;
+
+ if (avipad->is_video) {
+ /* the video header */
+ memcpy (buffdata + 0, "strf", 4);
+ GST_WRITE_UINT32_LE (buffdata + 4,
+ sizeof (gst_riff_strf_vids) + codec_size);
+ /* the actual header */
+ GST_WRITE_UINT32_LE (buffdata + 8, vidpad->vids.size + codec_size);
+ GST_WRITE_UINT32_LE (buffdata + 12, vidpad->vids.width);
+ GST_WRITE_UINT32_LE (buffdata + 16, vidpad->vids.height);
+ GST_WRITE_UINT16_LE (buffdata + 20, vidpad->vids.planes);
+ GST_WRITE_UINT16_LE (buffdata + 22, vidpad->vids.bit_cnt);
+ GST_WRITE_UINT32_LE (buffdata + 24, vidpad->vids.compression);
+ GST_WRITE_UINT32_LE (buffdata + 28, vidpad->vids.image_size);
+ GST_WRITE_UINT32_LE (buffdata + 32, vidpad->vids.xpels_meter);
+ GST_WRITE_UINT32_LE (buffdata + 36, vidpad->vids.ypels_meter);
+ GST_WRITE_UINT32_LE (buffdata + 40, vidpad->vids.num_colors);
+ GST_WRITE_UINT32_LE (buffdata + 44, vidpad->vids.imp_colors);
+ buffdata += 48;
+ highmark += 48;
+
+ /* include codec data, if any */
+ if (codec_size) {
+ memcpy (buffdata, GST_BUFFER_DATA (vidpad->vids_codec_data),
+ codec_size);
+
+ buffdata += codec_size;
+ highmark += codec_size;
+ }
+ /* padding */
+ if (highmark & 0x1) {
+ highmark++;
+ buffdata++;
+ }
+
+ /* add video property data, mainly for aspect ratio, if any */
+ if (vprp_size) {
+ gint f;
+
+ /* the vprp header */
+ memcpy (buffdata + 0, "vprp", 4);
+ GST_WRITE_UINT32_LE (buffdata + 4, vprp_size);
+ /* the actual data */
+ GST_WRITE_UINT32_LE (buffdata + 8, vidpad->vprp.format_token);
+ GST_WRITE_UINT32_LE (buffdata + 12, vidpad->vprp.standard);
+ GST_WRITE_UINT32_LE (buffdata + 16, vidpad->vprp.vert_rate);
+ GST_WRITE_UINT32_LE (buffdata + 20, vidpad->vprp.hor_t_total);
+ GST_WRITE_UINT32_LE (buffdata + 24, vidpad->vprp.vert_lines);
+ GST_WRITE_UINT32_LE (buffdata + 28, vidpad->vprp.aspect);
+ GST_WRITE_UINT32_LE (buffdata + 32, vidpad->vprp.width);
+ GST_WRITE_UINT32_LE (buffdata + 36, vidpad->vprp.height);
+ GST_WRITE_UINT32_LE (buffdata + 40, vidpad->vprp.fields);
+ buffdata += 44;
+ highmark += 44;
+ for (f = 0; f < vidpad->vprp.fields; ++f) {
+ gst_riff_vprp_video_field_desc *fd;
+
+ fd = &(vidpad->vprp.field_info[f]);
+ GST_WRITE_UINT32_LE (buffdata + 0, fd->compressed_bm_height);
+ GST_WRITE_UINT32_LE (buffdata + 4, fd->compressed_bm_width);
+ GST_WRITE_UINT32_LE (buffdata + 8, fd->valid_bm_height);
+ GST_WRITE_UINT32_LE (buffdata + 12, fd->valid_bm_width);
+ GST_WRITE_UINT32_LE (buffdata + 16, fd->valid_bm_x_offset);
+ GST_WRITE_UINT32_LE (buffdata + 20, fd->valid_bm_y_offset);
+ GST_WRITE_UINT32_LE (buffdata + 24, fd->video_x_t_offset);
+ GST_WRITE_UINT32_LE (buffdata + 28, fd->video_y_start);
+ buffdata += 32;
+ highmark += 32;
+ }
+ }
+ } else {
+ /* the audio header */
+ memcpy (buffdata + 0, "strf", 4);
+ GST_WRITE_UINT32_LE (buffdata + 4,
+ sizeof (gst_riff_strf_auds) + 2 + codec_size);
+ /* the actual header */
+ GST_WRITE_UINT16_LE (buffdata + 8, audpad->auds.format);
+ GST_WRITE_UINT16_LE (buffdata + 10, audpad->auds.channels);
+ GST_WRITE_UINT32_LE (buffdata + 12, audpad->auds.rate);
+ GST_WRITE_UINT32_LE (buffdata + 16, audpad->auds.av_bps);
+ GST_WRITE_UINT16_LE (buffdata + 20, audpad->auds.blockalign);
+ GST_WRITE_UINT16_LE (buffdata + 22, audpad->auds.size);
+ GST_WRITE_UINT16_LE (buffdata + 24, codec_size);
+ buffdata += 26;
+ highmark += 26;
+
+ /* include codec data, if any */
+ if (codec_size) {
+ memcpy (buffdata, GST_BUFFER_DATA (audpad->auds_codec_data),
+ codec_size);
+
+ buffdata += codec_size;
+ highmark += codec_size;
+ }
+ /* padding */
+ if (highmark & 0x1) {
+ highmark++;
+ buffdata++;
+ }
+ }
+
+ /* odml superindex chunk */
+ if (avipad->idx_index > 0)
+ memcpy (buffdata, "indx", 4);
+ else
+ memcpy (buffdata, "JUNK", 4);
+ GST_WRITE_UINT32_LE (buffdata + 4, ODML_SUPERINDEX_SIZE - 8); /* chunk size */
+ GST_WRITE_UINT16_LE (buffdata + 8, 4); /* bytes per entry */
+ buffdata[10] = 0; /* index subtype */
+ buffdata[11] = GST_AVI_INDEX_OF_INDEXES; /* index type */
+ GST_WRITE_UINT32_LE (buffdata + 12, avipad->idx_index); /* entries in use */
+ memcpy (buffdata + 16, avipad->tag, 4); /* stream id */
+ GST_WRITE_UINT32_LE (buffdata + 20, 0); /* reserved */
+ GST_WRITE_UINT32_LE (buffdata + 24, 0); /* reserved */
+ GST_WRITE_UINT32_LE (buffdata + 28, 0); /* reserved */
+ memcpy (buffdata + 32, avipad->idx,
+ GST_AVI_SUPERINDEX_COUNT * sizeof (gst_avi_superindex_entry));
+ buffdata += ODML_SUPERINDEX_SIZE;
+ highmark += ODML_SUPERINDEX_SIZE;
+
+ node = node->next;
+ }
+
+ if (avimux->video_pads > 0) {
+ /* odml header */
+ memcpy (buffdata + 0, "LIST", 4);
+ GST_WRITE_UINT32_LE (buffdata + 4, sizeof (guint32) + 4 * 3);
+ memcpy (buffdata + 8, "odml", 4);
+ memcpy (buffdata + 12, "dmlh", 4);
+ GST_WRITE_UINT32_LE (buffdata + 16, sizeof (guint32));
+ GST_WRITE_UINT32_LE (buffdata + 20, avimux->total_frames);
+ buffdata += 24;
+ highmark += 24;
+ }
+
+ GST_WRITE_UINT32_LE (hdrl_size, (guint32) (buffdata - hdrl_size) - 4);
+
+ /* tags */
+ if (tags) {
+ guint8 *ptr;
+ guint startsize;
+ GstMarkedBuffer data ;
+ data.highmark = &highmark;
+ data.buffer = buffer;
+
+ memcpy (buffdata + 0, "LIST", 4);
+ ptr = buffdata + 4; /* fill in later */
+ startsize = highmark + 4;
+ memcpy (buffdata + 8, "INFO", 4);
+ buffdata += 12;
+ highmark += 12;
+
+ /* 12 bytes is needed for data header */
+ GST_BUFFER_SIZE (buffer) -= 12;
+ gst_tag_list_foreach (tags, gst_avi_mux_write_tag, &data);
+ GST_BUFFER_SIZE (buffer) += 12;
+ buffdata = GST_BUFFER_DATA (buffer) + highmark;
+
+ /* update list size */
+ GST_WRITE_UINT32_LE (ptr, highmark - startsize - 4);
+ }
+
+ /* avi data header */
+ memcpy (buffdata + 0, "LIST", 4);
+ GST_WRITE_UINT32_LE (buffdata + 4, avimux->data_size);
+ memcpy (buffdata + 8, "movi", 4);
+ buffdata += 12;
+ highmark += 12;
+
+ /* finally we can fill in the RIFF size */
+ /* note that riff only counts the first avi chunk */
+ GST_WRITE_UINT32_LE (riff_size, (guint32) (buffdata - riff_size - 4) /* header and movi tags */
+ +avimux->idx_size + avimux->data_size - 4); /* movi data and index */
+
+ { /* only the part that is filled in actually makes up the header
+ * unref the parent as we only need this part from now on */
+ GstBuffer *subbuffer = gst_buffer_create_sub (buffer, 0, highmark);
+
+ gst_buffer_unref (buffer);
+ return subbuffer;
+ }
+}
+
+static GstBuffer *
+gst_avi_mux_riff_get_avix_header (guint32 datax_size)
+{
+ GstBuffer *buffer;
+ guint8 *buffdata;
+
+ buffer = gst_buffer_new_and_alloc (24);
+ buffdata = GST_BUFFER_DATA (buffer);
+
+ memcpy (buffdata + 0, "RIFF", 4);
+ GST_WRITE_UINT32_LE (buffdata + 4, datax_size + 3 * 4);
+ memcpy (buffdata + 8, "AVIX", 4);
+ memcpy (buffdata + 12, "LIST", 4);
+ GST_WRITE_UINT32_LE (buffdata + 16, datax_size);
+ memcpy (buffdata + 20, "movi", 4);
+
+ return buffer;
+}
+
+static inline GstBuffer *
+gst_avi_mux_riff_get_header (GstAviPad * avipad, guint32 video_frame_size)
+{
+ GstBuffer *buffer;
+ guint8 *buffdata;
+
+ buffer = gst_buffer_new_and_alloc (8);
+ buffdata = GST_BUFFER_DATA (buffer);
+ memcpy (buffdata + 0, avipad->tag, 4);
+ GST_WRITE_UINT32_LE (buffdata + 4, video_frame_size);
+
+ return buffer;
+}
+
+/* write an odml index chunk in the movi list */
+static GstFlowReturn
+gst_avi_mux_write_avix_index (GstAviMux * avimux, gchar * code,
+ gchar * chunk, gst_avi_superindex_entry * super_index,
+ gint * super_index_count)
+{
+ GstFlowReturn res;
+ GstBuffer *buffer;
+ guint8 *buffdata, *data;
+ gst_riff_index_entry *entry;
+ gint i;
+ guint32 size, entry_count;
+
+ /* allocate the maximum possible */
+ buffer = gst_buffer_new_and_alloc (32 + 8 * avimux->idx_index);
+ buffdata = GST_BUFFER_DATA (buffer);
+
+ /* general index chunk info */
+ memcpy (buffdata + 0, chunk, 4); /* chunk id */
+ GST_WRITE_UINT32_LE (buffdata + 4, 0); /* chunk size; fill later */
+ GST_WRITE_UINT16_LE (buffdata + 8, 2); /* index entry is 2 words */
+ buffdata[10] = 0; /* index subtype */
+ buffdata[11] = GST_AVI_INDEX_OF_CHUNKS; /* index type: AVI_INDEX_OF_CHUNKS */
+ GST_WRITE_UINT32_LE (buffdata + 12, 0); /* entries in use; fill later */
+ memcpy (buffdata + 16, code, 4); /* stream to which index refers */
+ GST_WRITE_UINT64_LE (buffdata + 20, avimux->avix_start); /* base offset */
+ GST_WRITE_UINT32_LE (buffdata + 28, 0); /* reserved */
+ buffdata += 32;
+
+ /* now the actual index entries */
+ i = avimux->idx_index;
+ entry = avimux->idx;
+ while (i > 0) {
+ if (memcmp (&entry->id, code, 4) == 0) {
+ /* enter relative offset to the data (!) */
+ GST_WRITE_UINT32_LE (buffdata, GUINT32_FROM_LE (entry->offset) + 8);
+ /* msb is set if not (!) keyframe */
+ GST_WRITE_UINT32_LE (buffdata + 4, GUINT32_FROM_LE (entry->size)
+ | (GUINT32_FROM_LE (entry->flags)
+ & GST_RIFF_IF_KEYFRAME ? 0 : 1U << 31));
+ buffdata += 8;
+ }
+ i--;
+ entry++;
+ }
+
+ /* ok, now we know the size and no of entries, fill in where needed */
+ data = GST_BUFFER_DATA (buffer);
+ GST_BUFFER_SIZE (buffer) = size = buffdata - data;
+ GST_WRITE_UINT32_LE (data + 4, size - 8);
+ entry_count = (size - 32) / 8;
+ GST_WRITE_UINT32_LE (data + 12, entry_count);
+
+ /* decorate and send */
+ gst_buffer_set_caps (buffer, GST_PAD_CAPS (avimux->srcpad));
+ if ((res = gst_pad_push (avimux->srcpad, buffer)) != GST_FLOW_OK)
+ return res;
+
+ /* keep track of this in superindex (if room) ... */
+ if (*super_index_count < GST_AVI_SUPERINDEX_COUNT) {
+ i = *super_index_count;
+ super_index[i].offset = GUINT64_TO_LE (avimux->total_data);
+ super_index[i].size = GUINT32_TO_LE (size);
+ super_index[i].duration = GUINT32_TO_LE (entry_count);
+ (*super_index_count)++;
+ } else
+ GST_WARNING_OBJECT (avimux, "No more room in superindex of stream %s",
+ code);
+
+ /* ... and in size */
+ avimux->total_data += size;
+ if (avimux->is_bigfile)
+ avimux->datax_size += size;
+ else
+ avimux->data_size += size;
+
+ return GST_FLOW_OK;
+}
+
+/* some other usable functions (thankyou xawtv ;-) ) */
+
+static void
+gst_avi_mux_add_index (GstAviMux * avimux, gchar * code, guint32 flags,
+ guint32 size)
+{
+ if (avimux->idx_index == avimux->idx_count) {
+ avimux->idx_count += 256;
+ avimux->idx =
+ g_realloc (avimux->idx,
+ avimux->idx_count * sizeof (gst_riff_index_entry));
+ }
+ memcpy (&(avimux->idx[avimux->idx_index].id), code, 4);
+ avimux->idx[avimux->idx_index].flags = GUINT32_TO_LE (flags);
+ avimux->idx[avimux->idx_index].offset = GUINT32_TO_LE (avimux->idx_offset);
+ avimux->idx[avimux->idx_index].size = GUINT32_TO_LE (size);
+ avimux->idx_index++;
+}
+
+static GstFlowReturn
+gst_avi_mux_write_index (GstAviMux * avimux)
+{
+ GstFlowReturn res;
+ GstBuffer *buffer;
+ guint8 *buffdata;
+
+ buffer = gst_buffer_new_and_alloc (8);
+ buffdata = GST_BUFFER_DATA (buffer);
+ memcpy (buffdata + 0, "idx1", 4);
+ GST_WRITE_UINT32_LE (buffdata + 4,
+ avimux->idx_index * sizeof (gst_riff_index_entry));
+
+ gst_buffer_set_caps (buffer, GST_PAD_CAPS (avimux->srcpad));
+ res = gst_pad_push (avimux->srcpad, buffer);
+ if (res != GST_FLOW_OK)
+ return res;
+
+ buffer = gst_buffer_new ();
+ GST_BUFFER_SIZE (buffer) = avimux->idx_index * sizeof (gst_riff_index_entry);
+ GST_BUFFER_DATA (buffer) = (guint8 *) avimux->idx;
+ GST_BUFFER_MALLOCDATA (buffer) = GST_BUFFER_DATA (buffer);
+ avimux->idx = NULL; /* will be free()'ed by gst_buffer_unref() */
+ avimux->total_data += GST_BUFFER_SIZE (buffer) + 8;
+
+ gst_buffer_set_caps (buffer, GST_PAD_CAPS (avimux->srcpad));
+ res = gst_pad_push (avimux->srcpad, buffer);
+ if (res != GST_FLOW_OK)
+ return res;
+
+ avimux->idx_size += avimux->idx_index * sizeof (gst_riff_index_entry) + 8;
+
+ /* update header */
+ avimux->avi_hdr.flags |= GST_RIFF_AVIH_HASINDEX;
+ return GST_FLOW_OK;
+}
+
+static GstFlowReturn
+gst_avi_mux_bigfile (GstAviMux * avimux, gboolean last)
+{
+ GstFlowReturn res = GST_FLOW_OK;
+ GstBuffer *header;
+ GstEvent *event;
+ GSList *node;
+
+ /* first some odml standard index chunks in the movi list */
+ node = avimux->sinkpads;
+ while (node) {
+ GstAviPad *avipad = (GstAviPad *) node->data;
+
+ node = node->next;
+
+ res = gst_avi_mux_write_avix_index (avimux, avipad->tag,
+ avipad->idx_tag, avipad->idx, &avipad->idx_index);
+ if (res != GST_FLOW_OK)
+ return res;
+ }
+
+ if (avimux->is_bigfile) {
+ /* search back */
+ event = gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES,
+ avimux->avix_start, GST_CLOCK_TIME_NONE, avimux->avix_start);
+ /* if the event succeeds */
+ gst_pad_push_event (avimux->srcpad, event);
+
+ /* rewrite AVIX header */
+ header = gst_avi_mux_riff_get_avix_header (avimux->datax_size);
+ gst_buffer_set_caps (header, GST_PAD_CAPS (avimux->srcpad));
+ res = gst_pad_push (avimux->srcpad, header);
+
+ /* go back to current location, at least try */
+ event = gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES,
+ avimux->total_data, GST_CLOCK_TIME_NONE, avimux->total_data);
+ gst_pad_push_event (avimux->srcpad, event);
+
+ if (res != GST_FLOW_OK)
+ return res;
+ } else { /* write a standard index in the first riff chunk */
+ res = gst_avi_mux_write_index (avimux);
+ /* the index data/buffer is freed by pushing it */
+ avimux->idx_count = 0;
+ if (res != GST_FLOW_OK)
+ return res;
+ }
+
+ avimux->avix_start = avimux->total_data;
+
+ if (last)
+ return res;
+
+ avimux->is_bigfile = TRUE;
+ avimux->numx_frames = 0;
+ avimux->datax_size = 4; /* movi tag */
+ avimux->idx_index = 0;
+
+ header = gst_avi_mux_riff_get_avix_header (0);
+ avimux->total_data += GST_BUFFER_SIZE (header);
+ /* avix_start is used as base offset for the odml index chunk */
+ avimux->idx_offset = avimux->total_data - avimux->avix_start;
+ gst_buffer_set_caps (header, GST_PAD_CAPS (avimux->srcpad));
+ return gst_pad_push (avimux->srcpad, header);
+}
+
+/* enough header blabla now, let's go on to actually writing the headers */
+
+static GstFlowReturn
+gst_avi_mux_start_file (GstAviMux * avimux)
+{
+ GstFlowReturn res;
+ GstBuffer *header;
+ GSList *node;
+
+ avimux->total_data = 0;
+ avimux->total_frames = 0;
+ avimux->data_size = 4; /* movi tag */
+ avimux->datax_size = 0;
+ avimux->num_frames = 0;
+ avimux->numx_frames = 0;
+ avimux->avix_start = 0;
+
+ avimux->idx_index = 0;
+ avimux->idx_offset = 0; /* see 10 lines below */
+ avimux->idx_size = 0;
+ avimux->idx_count = 0;
+ avimux->idx = NULL;
+
+ /* state */
+ avimux->write_header = FALSE;
+ avimux->restart = FALSE;
+
+ /* init streams, see what we've got */
+ node = avimux->sinkpads;
+ avimux->audio_pads = avimux->video_pads = 0;
+ while (node) {
+ GstAviPad *avipad = (GstAviPad *) node->data;
+
+ node = node->next;
+
+ if (!avipad->is_video) {
+ /* audio stream numbers must start at 1 iff there is a video stream 0;
+ * request_pad inserts video pad at head of list, so this test suffices */
+ if (avimux->video_pads)
+ avimux->audio_pads++;
+ avipad->tag = g_strdup_printf ("%02uwb", avimux->audio_pads);
+ avipad->idx_tag = g_strdup_printf ("ix%02u", avimux->audio_pads);
+ if (!avimux->video_pads)
+ avimux->audio_pads++;
+ } else {
+ avipad->tag = g_strdup_printf ("%02udb", avimux->video_pads);
+ avipad->idx_tag = g_strdup_printf ("ix%02u", avimux->video_pads++);
+ }
+ }
+
+ /* let downstream know we think in BYTES and expect to do seeking later on */
+ gst_pad_push_event (avimux->srcpad,
+ gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES, 0, -1, 0));
+
+ /* header */
+ avimux->avi_hdr.streams = g_slist_length (avimux->sinkpads);
+ avimux->is_bigfile = FALSE;
+
+ header = gst_avi_mux_riff_get_avi_header (avimux);
+ avimux->total_data += GST_BUFFER_SIZE (header);
+
+ gst_buffer_set_caps (header, GST_PAD_CAPS (avimux->srcpad));
+ res = gst_pad_push (avimux->srcpad, header);
+
+ avimux->idx_offset = avimux->total_data;
+
+ return res;
+}
+
+static GstFlowReturn
+gst_avi_mux_stop_file (GstAviMux * avimux)
+{
+ GstFlowReturn res = GST_FLOW_OK;
+ GstEvent *event;
+ GstBuffer *header;
+ GSList *node;
+
+ /* if bigfile, rewrite header, else write indexes */
+ /* don't bail out at once if error, still try to re-write header */
+ if (avimux->video_pads > 0) {
+ if (avimux->is_bigfile) {
+ res = gst_avi_mux_bigfile (avimux, TRUE);
+ } else {
+ res = gst_avi_mux_write_index (avimux);
+ }
+ }
+
+ /* we do our best to make it interleaved at least ... */
+ if (avimux->audio_pads > 0 && avimux->video_pads > 0)
+ avimux->avi_hdr.flags |= GST_RIFF_AVIH_ISINTERLEAVED;
+
+ /* set rate and everything having to do with that */
+ avimux->avi_hdr.max_bps = 0;
+ node = avimux->sinkpads;
+ while (node) {
+ GstAviPad *avipad = (GstAviPad *) node->data;
+
+ node = node->next;
+
+ if (!avipad->is_video) {
+ GstAviAudioPad *audpad = (GstAviAudioPad *) avipad;
+
+ /* calculate bps if needed */
+ if (!audpad->auds.av_bps) {
+ if (audpad->audio_time) {
+ audpad->auds.av_bps =
+ (GST_SECOND * audpad->audio_size) / audpad->audio_time;
+ /* round bps to nearest multiple of 8;
+ * which is much more likely to be the (cbr) bitrate in use;
+ * which in turn results in better timestamp calculation on playback */
+ audpad->auds.av_bps = GST_ROUND_UP_8 (audpad->auds.av_bps - 4);
+ } else {
+ GST_ELEMENT_WARNING (avimux, STREAM, MUX,
+ (_("No or invalid input audio, AVI stream will be corrupt.")),
+ (NULL));
+ audpad->auds.av_bps = 0;
+ }
+ avipad->hdr.rate = audpad->auds.av_bps * avipad->hdr.scale;
+ }
+ avimux->avi_hdr.max_bps += audpad->auds.av_bps;
+ avipad->hdr.length = (audpad->audio_time * avipad->hdr.rate) / GST_SECOND;
+ } else {
+ GstAviVideoPad *vidpad = (GstAviVideoPad *) avipad;
+
+ avimux->avi_hdr.max_bps += ((vidpad->vids.bit_cnt + 7) / 8) *
+ (1000000. / avimux->avi_hdr.us_frame) * vidpad->vids.image_size;
+ avipad->hdr.length = avimux->total_frames;
+ }
+ }
+
+ /* statistics/total_frames/... */
+ avimux->avi_hdr.tot_frames = avimux->num_frames;
+
+ /* seek and rewrite the header */
+ header = gst_avi_mux_riff_get_avi_header (avimux);
+ event = gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES,
+ 0, GST_CLOCK_TIME_NONE, 0);
+ gst_pad_push_event (avimux->srcpad, event);
+
+ gst_buffer_set_caps (header, GST_PAD_CAPS (avimux->srcpad));
+ /* the first error survives */
+ if (res == GST_FLOW_OK)
+ res = gst_pad_push (avimux->srcpad, header);
+ else
+ gst_pad_push (avimux->srcpad, header);
+
+ event = gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES,
+ avimux->total_data, GST_CLOCK_TIME_NONE, avimux->total_data);
+ gst_pad_push_event (avimux->srcpad, event);
+
+ avimux->write_header = TRUE;
+
+ return res;
+}
+
+static GstFlowReturn
+gst_avi_mux_restart_file (GstAviMux * avimux)
+{
+ GstFlowReturn res;
+
+ if ((res = gst_avi_mux_stop_file (avimux)) != GST_FLOW_OK)
+ return res;
+
+ gst_pad_push_event (avimux->srcpad, gst_event_new_eos ());
+
+ return gst_avi_mux_start_file (avimux);
+}
+
+/* handle events (search) */
+static gboolean
+gst_avi_mux_handle_event (GstPad * pad, GstEvent * event)
+{
+ GstAviMux *avimux;
+ gboolean ret;
+
+ avimux = GST_AVI_MUX (gst_pad_get_parent (pad));
+
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_TAG:{
+ GstTagList *list;
+ GstTagSetter *setter = GST_TAG_SETTER (avimux);
+ const GstTagMergeMode mode = gst_tag_setter_get_tag_merge_mode (setter);
+
+ gst_event_parse_tag (event, &list);
+ gst_tag_setter_merge_tags (setter, list, mode);
+ break;
+ }
+ default:
+ break;
+ }
+
+ /* now GstCollectPads can take care of the rest, e.g. EOS */
+ ret = avimux->collect_event (pad, event);
+
+ gst_object_unref (avimux);
+
+ return ret;
+}
+
+/* send extra 'padding' data */
+static GstFlowReturn
+gst_avi_mux_send_pad_data (GstAviMux * avimux, gulong num_bytes)
+{
+ GstBuffer *buffer;
+
+ buffer = gst_buffer_new_and_alloc (num_bytes);
+ memset (GST_BUFFER_DATA (buffer), 0, num_bytes);
+ gst_buffer_set_caps (buffer, GST_PAD_CAPS (avimux->srcpad));
+ return gst_pad_push (avimux->srcpad, buffer);
+}
+
+/* do buffer */
+static GstFlowReturn
+gst_avi_mux_do_buffer (GstAviMux * avimux, GstAviPad * avipad)
+{
+ GstFlowReturn res;
+ GstBuffer *data, *header;
+ gulong total_size, pad_bytes = 0;
+ guint flags;
+
+ data = gst_collect_pads_pop (avimux->collect, avipad->collect);
+
+ if (avimux->restart) {
+ if ((res = gst_avi_mux_restart_file (avimux)) != GST_FLOW_OK)
+ return res;
+ }
+
+ /* need to restart or start a next avix chunk ? */
+ if ((avimux->is_bigfile ? avimux->datax_size : avimux->data_size) +
+ GST_BUFFER_SIZE (data) > 1024 * 1024 * 2000) {
+ if (avimux->enable_large_avi) {
+ if ((res = gst_avi_mux_bigfile (avimux, FALSE)) != GST_FLOW_OK)
+ return res;
+ } else {
+ if ((res = gst_avi_mux_restart_file (avimux)) != GST_FLOW_OK)
+ return res;
+ }
+ }
+
+ /* get header and record some stats */
+ if (GST_BUFFER_SIZE (data) & 1) {
+ pad_bytes = 2 - (GST_BUFFER_SIZE (data) & 1);
+ }
+ header = gst_avi_mux_riff_get_header (avipad, GST_BUFFER_SIZE (data));
+ total_size = GST_BUFFER_SIZE (header) + GST_BUFFER_SIZE (data) + pad_bytes;
+
+ if (avimux->is_bigfile) {
+ avimux->datax_size += total_size;
+ } else {
+ avimux->data_size += total_size;
+ }
+
+ if (avipad->is_video) {
+ avimux->total_frames++;
+
+ if (avimux->is_bigfile) {
+ avimux->numx_frames++;
+ } else {
+ avimux->num_frames++;
+ }
+
+ flags = 0x02;
+ if (!GST_BUFFER_FLAG_IS_SET (data, GST_BUFFER_FLAG_DELTA_UNIT))
+ flags |= 0x10;
+ } else {
+ GstAviAudioPad *audpad = (GstAviAudioPad *) avipad;
+
+ flags = 0;
+ audpad->audio_size += GST_BUFFER_SIZE (data);
+ audpad->audio_time += GST_BUFFER_DURATION (data);
+ }
+
+ gst_avi_mux_add_index (avimux, avipad->tag, flags, GST_BUFFER_SIZE (data));
+
+ /* prepare buffers for sending */
+ gst_buffer_set_caps (header, GST_PAD_CAPS (avimux->srcpad));
+ data = gst_buffer_make_metadata_writable (data);
+ gst_buffer_set_caps (data, GST_PAD_CAPS (avimux->srcpad));
+
+ GST_LOG_OBJECT (avimux, "pushing buffers: head, data");
+
+ if ((res = gst_pad_push (avimux->srcpad, header)) != GST_FLOW_OK)
+ return res;
+ if ((res = gst_pad_push (avimux->srcpad, data)) != GST_FLOW_OK)
+ return res;
+
+ if (pad_bytes) {
+ if ((res = gst_avi_mux_send_pad_data (avimux, pad_bytes)) != GST_FLOW_OK)
+ return res;
+ }
+
+ /* if any push above fails, we're in trouble with file consistency anyway */
+ avimux->total_data += total_size;
+ avimux->idx_offset += total_size;
+
+ return res;
+}
+
+/* pick the oldest buffer from the pads and push it */
+static GstFlowReturn
+gst_avi_mux_do_one_buffer (GstAviMux * avimux)
+{
+ GstAviPad *avipad, *best_pad;
+ GSList *node;
+ GstBuffer *buffer;
+ GstClockTime time, best_time;
+
+ node = avimux->sinkpads;
+ best_pad = NULL;
+ best_time = GST_CLOCK_TIME_NONE;
+ for (; node; node = node->next) {
+ avipad = (GstAviPad *) node->data;
+
+ if (!avipad->collect)
+ continue;
+
+ buffer = gst_collect_pads_peek (avimux->collect, avipad->collect);
+ if (!buffer)
+ continue;
+ time = GST_BUFFER_TIMESTAMP (buffer);
+ gst_buffer_unref (buffer);
+
+ /* invalid timestamp buffers pass first,
+ * these are probably initialization buffers */
+ if (best_pad == NULL || !GST_CLOCK_TIME_IS_VALID (time)
+ || (GST_CLOCK_TIME_IS_VALID (best_time) && time < best_time)) {
+ best_pad = avipad;
+ best_time = time;
+ }
+ }
+
+ if (best_pad) {
+ GST_LOG_OBJECT (avimux, "selected pad %s with time %" GST_TIME_FORMAT,
+ GST_PAD_NAME (best_pad->collect->pad), GST_TIME_ARGS (best_time));
+
+ return gst_avi_mux_do_buffer (avimux, best_pad);
+ } else {
+ /* simply finish off the file and send EOS */
+ gst_avi_mux_stop_file (avimux);
+ gst_pad_push_event (avimux->srcpad, gst_event_new_eos ());
+ return GST_FLOW_UNEXPECTED;
+ }
+}
+
+static GstFlowReturn
+gst_avi_mux_collect_pads (GstCollectPads * pads, GstAviMux * avimux)
+{
+ GstFlowReturn res;
+
+ if (G_UNLIKELY (avimux->write_header)) {
+ if ((res = gst_avi_mux_start_file (avimux)) != GST_FLOW_OK)
+ return res;
+ }
+
+ return gst_avi_mux_do_one_buffer (avimux);
+}
+
+
+static void
+gst_avi_mux_get_property (GObject * object,
+ guint prop_id, GValue * value, GParamSpec * pspec)
+{
+ GstAviMux *avimux;
+
+ avimux = GST_AVI_MUX (object);
+
+ switch (prop_id) {
+ case ARG_BIGFILE:
+ g_value_set_boolean (value, avimux->enable_large_avi);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_avi_mux_set_property (GObject * object,
+ guint prop_id, const GValue * value, GParamSpec * pspec)
+{
+ GstAviMux *avimux;
+
+ avimux = GST_AVI_MUX (object);
+
+ switch (prop_id) {
+ case ARG_BIGFILE:
+ avimux->enable_large_avi = g_value_get_boolean (value);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static GstStateChangeReturn
+gst_avi_mux_change_state (GstElement * element, GstStateChange transition)
+{
+ GstAviMux *avimux;
+ GstStateChangeReturn ret;
+
+ avimux = GST_AVI_MUX (element);
+
+ switch (transition) {
+ case GST_STATE_CHANGE_READY_TO_PAUSED:
+ gst_collect_pads_start (avimux->collect);
+ break;
+ case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
+ break;
+ case GST_STATE_CHANGE_PAUSED_TO_READY:
+ gst_collect_pads_stop (avimux->collect);
+ break;
+ default:
+ break;
+ }
+
+ ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
+ if (ret == GST_STATE_CHANGE_FAILURE)
+ goto done;
+
+ switch (transition) {
+ case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
+ break;
+ case GST_STATE_CHANGE_PAUSED_TO_READY:
+ gst_avi_mux_reset (avimux);
+ break;
+ case GST_STATE_CHANGE_READY_TO_NULL:
+ break;
+ default:
+ break;
+ }
+
+done:
+ return ret;
+}