mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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549 lines
14 KiB
C
549 lines
14 KiB
C
/* Schrodinger
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* Copyright (C) 2006 David Schleef <ds@schleef.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstbasevideocodec.h"
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#include <string.h>
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#include <math.h>
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GST_DEBUG_CATEGORY (basevideocodec_debug);
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#define GST_CAT_DEFAULT basevideocodec_debug
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/* GstBaseVideoCodec signals and args */
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enum
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{
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LAST_SIGNAL
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};
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enum
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{
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ARG_0
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};
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static void gst_base_video_codec_finalize (GObject * object);
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//static const GstQueryType *gst_base_video_codec_get_query_types (GstPad *pad);
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//static gboolean gst_base_video_codec_src_query (GstPad *pad, GstQuery *query);
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//static gboolean gst_base_video_codec_sink_query (GstPad *pad, GstQuery *query);
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//static gboolean gst_base_video_codec_src_event (GstPad *pad, GstEvent *event);
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//static gboolean gst_base_video_codec_sink_event (GstPad *pad, GstEvent *event);
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static GstStateChangeReturn gst_base_video_codec_change_state (GstElement *
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element, GstStateChange transition);
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//static GstFlowReturn gst_base_video_codec_push_all (GstBaseVideoCodec *base_video_codec,
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// gboolean at_eos);
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GST_BOILERPLATE (GstBaseVideoCodec, gst_base_video_codec, GstElement,
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GST_TYPE_ELEMENT);
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static void
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gst_base_video_codec_base_init (gpointer g_class)
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{
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GST_DEBUG_CATEGORY_INIT (basevideocodec_debug, "basevideocodec", 0,
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"Base Video Codec");
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}
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static void
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gst_base_video_codec_class_init (GstBaseVideoCodecClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *element_class;
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gobject_class = G_OBJECT_CLASS (klass);
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element_class = GST_ELEMENT_CLASS (klass);
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gobject_class->finalize = gst_base_video_codec_finalize;
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element_class->change_state = gst_base_video_codec_change_state;
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}
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static void
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gst_base_video_codec_init (GstBaseVideoCodec * base_video_codec,
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GstBaseVideoCodecClass * klass)
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{
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GstPadTemplate *pad_template;
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GST_DEBUG ("gst_base_video_codec_init");
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pad_template =
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gst_element_class_get_pad_template (GST_ELEMENT_CLASS (klass), "sink");
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g_return_if_fail (pad_template != NULL);
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base_video_codec->sinkpad = gst_pad_new_from_template (pad_template, "sink");
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//gst_pad_set_query_function (base_video_codec->sinkpad,
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// gst_base_video_codec_sink_query);
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gst_element_add_pad (GST_ELEMENT (base_video_codec),
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base_video_codec->sinkpad);
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pad_template =
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gst_element_class_get_pad_template (GST_ELEMENT_CLASS (klass), "src");
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g_return_if_fail (pad_template != NULL);
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base_video_codec->srcpad = gst_pad_new_from_template (pad_template, "src");
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gst_element_add_pad (GST_ELEMENT (base_video_codec),
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base_video_codec->srcpad);
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gst_segment_init (&base_video_codec->segment, GST_FORMAT_TIME);
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}
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static void
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gst_base_video_codec_reset (GstBaseVideoCodec * base_video_codec)
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{
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GList *g;
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GST_DEBUG ("reset");
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for (g = base_video_codec->frames; g; g = g_list_next (g)) {
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gst_base_video_codec_free_frame ((GstVideoFrame *) g->data);
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}
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g_list_free (base_video_codec->frames);
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if (base_video_codec->caps) {
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gst_caps_unref (base_video_codec->caps);
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base_video_codec->caps = NULL;
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}
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}
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static void
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gst_base_video_codec_finalize (GObject * object)
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{
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GstBaseVideoCodec *base_video_codec;
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g_return_if_fail (GST_IS_BASE_VIDEO_CODEC (object));
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base_video_codec = GST_BASE_VIDEO_CODEC (object);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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#ifdef unused
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static const GstQueryType *
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gst_base_video_codec_get_query_types (GstPad * pad)
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{
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static const GstQueryType query_types[] = {
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GST_QUERY_POSITION,
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GST_QUERY_DURATION,
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GST_QUERY_CONVERT,
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0
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};
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return query_types;
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}
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#endif
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#if 0
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static gboolean
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gst_base_video_codec_src_convert (GstPad * pad,
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GstFormat src_format, gint64 src_value,
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GstFormat * dest_format, gint64 * dest_value)
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{
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gboolean res;
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GstBaseVideoCodec *dec;
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if (src_format == *dest_format) {
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*dest_value = src_value;
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return TRUE;
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}
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dec = GST_BASE_VIDEO_CODEC (gst_pad_get_parent (pad));
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if (src_format == GST_FORMAT_DEFAULT && *dest_format == GST_FORMAT_TIME) {
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if (dec->fps_d != 0) {
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*dest_value = gst_util_uint64_scale (granulepos_to_frame (src_value),
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dec->fps_d * GST_SECOND, dec->fps_n);
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res = TRUE;
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} else {
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res = FALSE;
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}
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} else {
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GST_WARNING ("unhandled conversion from %d to %d", src_format,
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*dest_format);
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res = FALSE;
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}
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gst_object_unref (dec);
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return res;
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}
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static gboolean
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gst_base_video_codec_sink_convert (GstPad * pad,
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GstFormat src_format, gint64 src_value,
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GstFormat * dest_format, gint64 * dest_value)
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{
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gboolean res = TRUE;
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GstBaseVideoCodec *dec;
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if (src_format == *dest_format) {
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*dest_value = src_value;
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return TRUE;
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}
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dec = GST_BASE_VIDEO_CODEC (gst_pad_get_parent (pad));
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/* FIXME: check if we are in a decoding state */
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switch (src_format) {
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case GST_FORMAT_DEFAULT:
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switch (*dest_format) {
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case GST_FORMAT_TIME:
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*dest_value = gst_util_uint64_scale (src_value,
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dec->fps_d * GST_SECOND, dec->fps_n);
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break;
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default:
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res = FALSE;
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}
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break;
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case GST_FORMAT_TIME:
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switch (*dest_format) {
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case GST_FORMAT_DEFAULT:
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{
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*dest_value = gst_util_uint64_scale (src_value,
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dec->fps_n, dec->fps_d * GST_SECOND);
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break;
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}
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default:
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res = FALSE;
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break;
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}
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break;
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default:
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res = FALSE;
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break;
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}
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gst_object_unref (dec);
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return res;
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}
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#endif
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#ifdef unused
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static gboolean
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gst_base_video_codec_src_query (GstPad * pad, GstQuery * query)
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{
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GstBaseVideoCodec *base_codec;
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gboolean res = FALSE;
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base_codec = GST_BASE_VIDEO_CODEC (gst_pad_get_parent (pad));
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switch (GST_QUERY_TYPE (query)) {
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case GST_QUERY_POSITION:
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{
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GstFormat format;
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gint64 time;
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gint64 value;
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gst_query_parse_position (query, &format, NULL);
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time = gst_util_uint64_scale (base_codec->system_frame_number,
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base_codec->state.fps_n, base_codec->state.fps_d);
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time += base_codec->state.segment.time;
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GST_DEBUG ("query position %" GST_TIME_FORMAT, GST_TIME_ARGS (time));
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res = gst_base_video_encoded_video_convert (&base_codec->state,
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GST_FORMAT_TIME, time, &format, &value);
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if (!res)
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goto error;
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gst_query_set_position (query, format, value);
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break;
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}
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case GST_QUERY_DURATION:
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res = gst_pad_query (GST_PAD_PEER (base_codec->sinkpad), query);
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if (!res)
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goto error;
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break;
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case GST_QUERY_CONVERT:
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{
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GstFormat src_fmt, dest_fmt;
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gint64 src_val, dest_val;
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GST_DEBUG ("query convert");
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gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
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res = gst_base_video_encoded_video_convert (&base_codec->state,
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src_fmt, src_val, &dest_fmt, &dest_val);
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if (!res)
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goto error;
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gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
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break;
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}
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default:
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res = gst_pad_query_default (pad, query);
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break;
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}
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done:
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gst_object_unref (base_codec);
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return res;
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error:
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GST_DEBUG_OBJECT (base_codec, "query failed");
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goto done;
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}
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#endif
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#ifdef unused
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static gboolean
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gst_base_video_codec_sink_query (GstPad * pad, GstQuery * query)
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{
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GstBaseVideoCodec *base_video_codec;
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gboolean res = FALSE;
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base_video_codec = GST_BASE_VIDEO_CODEC (gst_pad_get_parent (pad));
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switch (GST_QUERY_TYPE (query)) {
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case GST_QUERY_CONVERT:
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{
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GstFormat src_fmt, dest_fmt;
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gint64 src_val, dest_val;
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gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
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res = gst_base_video_encoded_video_convert (&base_video_codec->state,
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src_fmt, src_val, &dest_fmt, &dest_val);
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if (!res)
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goto error;
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gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
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break;
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}
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default:
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res = gst_pad_query_default (pad, query);
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break;
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}
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done:
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gst_object_unref (base_video_codec);
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return res;
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error:
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GST_DEBUG_OBJECT (base_video_codec, "query failed");
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goto done;
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}
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#endif
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#ifdef unused
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static gboolean
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gst_base_video_codec_src_event (GstPad * pad, GstEvent * event)
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{
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GstBaseVideoCodec *base_video_codec;
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gboolean res = FALSE;
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base_video_codec = GST_BASE_VIDEO_CODEC (gst_pad_get_parent (pad));
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_SEEK:
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{
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GstFormat format, tformat;
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gdouble rate;
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GstEvent *real_seek;
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GstSeekFlags flags;
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GstSeekType cur_type, stop_type;
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gint64 cur, stop;
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gint64 tcur, tstop;
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gst_event_parse_seek (event, &rate, &format, &flags, &cur_type,
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&cur, &stop_type, &stop);
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gst_event_unref (event);
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tformat = GST_FORMAT_TIME;
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res = gst_base_video_encoded_video_convert (&base_video_codec->state,
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format, cur, &tformat, &tcur);
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if (!res)
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goto convert_error;
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res = gst_base_video_encoded_video_convert (&base_video_codec->state,
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format, stop, &tformat, &tstop);
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if (!res)
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goto convert_error;
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real_seek = gst_event_new_seek (rate, GST_FORMAT_TIME,
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flags, cur_type, tcur, stop_type, tstop);
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res = gst_pad_push_event (base_video_codec->sinkpad, real_seek);
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break;
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}
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#if 0
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case GST_EVENT_QOS:
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{
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gdouble proportion;
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GstClockTimeDiff diff;
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GstClockTime timestamp;
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gst_event_parse_qos (event, &proportion, &diff, ×tamp);
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GST_OBJECT_LOCK (base_video_codec);
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base_video_codec->proportion = proportion;
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base_video_codec->earliest_time = timestamp + diff;
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GST_OBJECT_UNLOCK (base_video_codec);
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GST_DEBUG_OBJECT (base_video_codec,
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"got QoS %" GST_TIME_FORMAT ", %" G_GINT64_FORMAT,
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GST_TIME_ARGS (timestamp), diff);
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res = gst_pad_push_event (base_video_codec->sinkpad, event);
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break;
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}
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#endif
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default:
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res = gst_pad_push_event (base_video_codec->sinkpad, event);
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break;
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}
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done:
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gst_object_unref (base_video_codec);
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return res;
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convert_error:
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GST_DEBUG_OBJECT (base_video_codec, "could not convert format");
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goto done;
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}
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#endif
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#ifdef unused
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static gboolean
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gst_base_video_codec_sink_event (GstPad * pad, GstEvent * event)
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{
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GstBaseVideoCodec *base_video_codec;
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gboolean ret = FALSE;
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base_video_codec = GST_BASE_VIDEO_CODEC (gst_pad_get_parent (pad));
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_FLUSH_START:
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ret = gst_pad_push_event (base_video_codec->srcpad, event);
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break;
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case GST_EVENT_FLUSH_STOP:
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gst_base_video_codec_reset (base_video_codec);
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ret = gst_pad_push_event (base_video_codec->srcpad, event);
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break;
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case GST_EVENT_EOS:
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if (gst_base_video_codec_push_all (base_video_codec,
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FALSE) == GST_FLOW_ERROR) {
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gst_event_unref (event);
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return FALSE;
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}
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ret = gst_pad_push_event (base_video_codec->srcpad, event);
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break;
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case GST_EVENT_NEWSEGMENT:
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{
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gboolean update;
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GstFormat format;
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gdouble rate;
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gint64 start, stop, time;
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gst_event_parse_new_segment (event, &update, &rate, &format, &start,
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&stop, &time);
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if (format != GST_FORMAT_TIME)
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goto newseg_wrong_format;
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if (rate <= 0.0)
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goto newseg_wrong_rate;
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GST_DEBUG ("newsegment %" GST_TIME_FORMAT " %" GST_TIME_FORMAT,
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GST_TIME_ARGS (start), GST_TIME_ARGS (time));
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gst_segment_set_newsegment (&base_video_codec->state.segment, update,
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rate, format, start, stop, time);
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ret = gst_pad_push_event (base_video_codec->srcpad, event);
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break;
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}
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default:
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ret = gst_pad_push_event (base_video_codec->srcpad, event);
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break;
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}
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done:
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gst_object_unref (base_video_codec);
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return ret;
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newseg_wrong_format:
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GST_DEBUG_OBJECT (base_video_codec, "received non TIME newsegment");
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gst_event_unref (event);
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goto done;
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newseg_wrong_rate:
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GST_DEBUG_OBJECT (base_video_codec, "negative rates not supported");
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gst_event_unref (event);
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goto done;
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}
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#endif
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static GstStateChangeReturn
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gst_base_video_codec_change_state (GstElement * element,
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GstStateChange transition)
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{
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GstBaseVideoCodec *base_video_codec = GST_BASE_VIDEO_CODEC (element);
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GstStateChangeReturn ret;
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switch (transition) {
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case GST_STATE_CHANGE_NULL_TO_READY:
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break;
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case GST_STATE_CHANGE_READY_TO_PAUSED:
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gst_base_video_codec_reset (base_video_codec);
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break;
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case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
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break;
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default:
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break;
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}
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ret = parent_class->change_state (element, transition);
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switch (transition) {
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case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
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break;
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case GST_STATE_CHANGE_PAUSED_TO_READY:
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gst_base_video_codec_reset (base_video_codec);
|
|
break;
|
|
case GST_STATE_CHANGE_READY_TO_NULL:
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
GstVideoFrame *
|
|
gst_base_video_codec_new_frame (GstBaseVideoCodec * base_video_codec)
|
|
{
|
|
GstVideoFrame *frame;
|
|
|
|
frame = g_malloc0 (sizeof (GstVideoFrame));
|
|
|
|
frame->system_frame_number = base_video_codec->system_frame_number;
|
|
base_video_codec->system_frame_number++;
|
|
|
|
return frame;
|
|
}
|
|
|
|
void
|
|
gst_base_video_codec_free_frame (GstVideoFrame * frame)
|
|
{
|
|
if (frame->sink_buffer) {
|
|
gst_buffer_unref (frame->sink_buffer);
|
|
}
|
|
|
|
g_free (frame);
|
|
}
|