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2007 lines
62 KiB
C
2007 lines
62 KiB
C
/* GStreamer encoding bin
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* Copyright (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
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* (C) 2009 Nokia Corporation
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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 <string.h>
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#include "gstencodebin.h"
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#include "gstsmartencoder.h"
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#include "gststreamsplitter.h"
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#include "gststreamcombiner.h"
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#include <gst/gst-i18n-plugin.h>
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/**
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* SECTION:element-encodebin
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*
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* EncodeBin provides a bin for encoding/muxing various streams according to
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* a specified #GstEncodingProfile.
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*
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* Based on the profile that was set (via the #GstEncodeBin:profile property),
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* EncodeBin will internally select and configure the required elements
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* (encoders, muxers, but also audio and video converters) so that you can
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* provide it raw or pre-encoded streams of data in input and have your
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* encoded/muxed/converted stream in output.
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*
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* <refsect2>
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* <title>Features</title>
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* <itemizedlist>
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* <listitem>
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* Automatic encoder and muxer selection based on elements available on the
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* system.
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* </listitem>
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* <listitem>
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* Conversion of raw audio/video streams (scaling, framerate conversion,
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* colorspace conversion, samplerate conversion) to conform to the profile
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* output format.
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* </listitem>
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* <listitem>
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* Variable number of streams. If the presence property for a stream encoding
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* profile is 0, you can request any number of sink pads for it via the
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* standard request pad gstreamer API or the #GstEncodeBin::request-pad action
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* signal.
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* </listitem>
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* <listitem>
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* Avoid reencoding (passthrough). If the input stream is already encoded and is
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* compatible with what the #GstEncodingProfile expects, then the stream won't
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* be re-encoded but just passed through downstream to the muxer or the output.
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* </listitem>
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* <listitem>
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* Mix pre-encoded and raw streams as input. In addition to the passthrough
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* feature above, you can feed both raw audio/video *AND* already-encoded data
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* to a pad. #GstEncodeBin will take care of passing through the compatible
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* segments and re-encoding the segments of media that need encoding.
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* </listitem>
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* <listitem>
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* Standard behaviour is to use a #GstEncodingContainerProfile to have both
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* encoding and muxing performed. But you can also provide a single stream
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* profile (like #GstEncodingAudioProfile) to only have the encoding done and
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* handle the encoded output yourself.
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* </listitem>
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* <listitem>
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* Audio imperfection corrections. Incoming audio streams can have non perfect
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* timestamps (jitter), like the streams coming from ASF files. #GstEncodeBin
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* will automatically fix those imperfections for you. See
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* #GstEncodeBin:audio-jitter-tolerance for more details.
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* </listitem>
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* <listitem>
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* Variable or Constant video framerate. If your #GstEncodingVideoProfile has
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* the variableframerate property deactivated (default), then the incoming
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* raw video stream will be retimestampped in order to produce a constant
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* framerate.
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* </listitem>
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* <listitem>
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* Cross-boundary re-encoding. When feeding compatible pre-encoded streams that
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* fall on segment boundaries, and for supported formats (right now only H263),
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* the GOP will be decoded/reencoded when needed to produce an encoded output
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* that fits exactly within the request GstSegment.
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* </listitem>
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* <listitem>
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* Missing plugin support. If a #GstElement is missing to encode/mux to the
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* request profile formats, a missing-plugin #GstMessage will be posted on the
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* #GstBus, allowing systems that support the missing-plugin system to offer the
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* user a way to install the missing element.
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* </listitem>
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* </itemizedlist>
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* </refsect2>
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*/
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/* TODO/FIXME
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*
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* Handling mp3!xing!idv3 and theora!ogg tagsetting scenarios:
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* Once we have chosen a muxer:
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* When a new stream is requested:
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* If muxer isn't 'Formatter' OR doesn't have a TagSetter interface:
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* Find a Formatter for the given stream (preferably with TagSetter)
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* Insert that before muxer
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**/
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#define fast_pad_link(a,b) gst_pad_link_full((a),(b),GST_PAD_LINK_CHECK_NOTHING)
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#define fast_element_link(a,b) gst_element_link_pads_full((a),"src",(b),"sink",GST_PAD_LINK_CHECK_NOTHING)
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typedef enum
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{
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GST_ENC_FLAG_NATIVE_AUDIO = (1 << 0),
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GST_ENC_FLAG_NATIVE_VIDEO = (1 << 1)
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} GstEncFlags;
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#define GST_TYPE_ENC_FLAGS (gst_enc_flags_get_type())
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GType gst_enc_flags_get_type (void);
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/* generic templates */
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static GstStaticPadTemplate muxer_src_template =
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GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
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GST_STATIC_CAPS_ANY);
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static GstStaticPadTemplate video_sink_template =
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GST_STATIC_PAD_TEMPLATE ("video_%d",
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GST_PAD_SINK,
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GST_PAD_REQUEST,
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GST_STATIC_CAPS_ANY);
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static GstStaticPadTemplate audio_sink_template =
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GST_STATIC_PAD_TEMPLATE ("audio_%d",
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GST_PAD_SINK,
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GST_PAD_REQUEST,
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GST_STATIC_CAPS_ANY);
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/* static GstStaticPadTemplate text_sink_template = */
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/* GST_STATIC_PAD_TEMPLATE ("text_%d", */
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/* GST_PAD_SINK, */
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/* GST_PAD_REQUEST, */
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/* GST_STATIC_CAPS_ANY); */
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static GstStaticPadTemplate private_sink_template =
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GST_STATIC_PAD_TEMPLATE ("private_%d",
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GST_PAD_SINK,
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GST_PAD_REQUEST,
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GST_STATIC_CAPS_ANY);
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struct _GstEncodeBin
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{
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GstBin parent;
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/* the profile field is only valid if it could be entirely setup */
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GstEncodingProfile *profile;
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GList *streams; /* List of StreamGroup, not sorted */
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GstElement *muxer;
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/* Ghostpad with changing target */
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GstPad *srcpad;
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/* TRUE if in PAUSED/PLAYING */
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gboolean active;
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/* available muxers, encoders and parsers */
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GList *muxers;
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GList *formatters;
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GList *encoders;
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GList *parsers;
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/* Increasing counter for unique pad name */
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guint last_pad_id;
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/* Cached caps for identification */
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GstCaps *raw_video_caps;
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GstCaps *raw_audio_caps;
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/* GstCaps *raw_text_caps; */
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guint queue_buffers_max;
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guint queue_bytes_max;
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guint64 queue_time_max;
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guint64 tolerance;
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gboolean avoid_reencoding;
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GstEncFlags flags;
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};
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struct _GstEncodeBinClass
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{
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GstBinClass parent;
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/* Action Signals */
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GstPad *(*request_pad) (GstEncodeBin * encodebin, GstCaps * caps);
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};
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typedef struct _StreamGroup StreamGroup;
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struct _StreamGroup
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{
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GstEncodeBin *ebin;
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GstEncodingProfile *profile;
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GstPad *ghostpad; /* Sink ghostpad */
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GstElement *inqueue; /* Queue just after the ghostpad */
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GstElement *splitter;
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GList *converters; /* List of conversion GstElement */
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GstElement *capsfilter; /* profile->restriction (if non-NULL/ANY) */
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GstElement *encoder; /* Encoder (can be NULL) */
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GstElement *combiner;
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GstElement *parser;
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GstElement *smartencoder;
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GstElement *outfilter; /* Output capsfilter (streamprofile.format) */
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GstElement *formatter;
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GstElement *outqueue; /* Queue just before the muxer */
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};
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/* Default for queues (same defaults as queue element) */
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#define DEFAULT_QUEUE_BUFFERS_MAX 200
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#define DEFAULT_QUEUE_BYTES_MAX 10 * 1024 * 1024
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#define DEFAULT_QUEUE_TIME_MAX GST_SECOND
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#define DEFAULT_AUDIO_JITTER_TOLERANCE 20 * GST_MSECOND
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#define DEFAULT_AVOID_REENCODING FALSE
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#define DEFAULT_FLAGS 0
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#define DEFAULT_RAW_CAPS \
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"video/x-raw; " \
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"audio/x-raw-int; " \
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"audio/x-raw-float; " \
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"text/plain; " \
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"text/x-pango-markup; " \
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"video/x-dvd-subpicture; " \
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"subpicture/x-pgs"
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/* Properties */
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enum
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{
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PROP_0,
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PROP_PROFILE,
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PROP_QUEUE_BUFFERS_MAX,
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PROP_QUEUE_BYTES_MAX,
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PROP_QUEUE_TIME_MAX,
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PROP_AUDIO_JITTER_TOLERANCE,
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PROP_AVOID_REENCODING,
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PROP_FLAGS,
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PROP_LAST
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};
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/* Signals */
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enum
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{
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SIGNAL_REQUEST_PAD,
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LAST_SIGNAL
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};
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#define C_FLAGS(v) ((guint) v)
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GType
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gst_enc_flags_get_type (void)
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{
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static const GFlagsValue values[] = {
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{C_FLAGS (GST_ENC_FLAG_NATIVE_AUDIO), "Only use native audio formats",
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"native-audio"},
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{C_FLAGS (GST_ENC_FLAG_NATIVE_VIDEO), "Only use native video formats",
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"native-video"},
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{0, NULL, NULL}
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};
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static volatile GType id = 0;
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if (g_once_init_enter ((gsize *) & id)) {
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GType _id;
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_id = g_flags_register_static ("GstEncFlags", values);
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g_once_init_leave ((gsize *) & id, _id);
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}
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return id;
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}
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static guint gst_encode_bin_signals[LAST_SIGNAL] = { 0 };
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static GstStaticCaps default_raw_caps = GST_STATIC_CAPS (DEFAULT_RAW_CAPS);
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GST_DEBUG_CATEGORY_STATIC (gst_encode_bin_debug);
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#define GST_CAT_DEFAULT gst_encode_bin_debug
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G_DEFINE_TYPE (GstEncodeBin, gst_encode_bin, GST_TYPE_BIN);
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static void gst_encode_bin_dispose (GObject * object);
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static void gst_encode_bin_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_encode_bin_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static GstStateChangeReturn gst_encode_bin_change_state (GstElement * element,
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GstStateChange transition);
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static GstPad *gst_encode_bin_request_new_pad (GstElement * element,
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GstPadTemplate * templ, const gchar * name, const GstCaps * caps);
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static void gst_encode_bin_release_pad (GstElement * element, GstPad * pad);
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static gboolean
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gst_encode_bin_set_profile (GstEncodeBin * ebin, GstEncodingProfile * profile);
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static void gst_encode_bin_tear_down_profile (GstEncodeBin * ebin);
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static gboolean gst_encode_bin_setup_profile (GstEncodeBin * ebin,
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GstEncodingProfile * profile);
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static StreamGroup *_create_stream_group (GstEncodeBin * ebin,
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GstEncodingProfile * sprof, const gchar * sinkpadname, GstCaps * sinkcaps);
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static void stream_group_remove (GstEncodeBin * ebin, StreamGroup * sgroup);
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static GstPad *gst_encode_bin_request_pad_signal (GstEncodeBin * encodebin,
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GstCaps * caps);
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static inline GstElement *_get_formatter (GstEncodeBin * ebin,
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GstEncodingProfile * sprof);
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static void
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gst_encode_bin_class_init (GstEncodeBinClass * klass)
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{
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GObjectClass *gobject_klass;
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GstElementClass *gstelement_klass;
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gobject_klass = (GObjectClass *) klass;
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gstelement_klass = (GstElementClass *) klass;
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gobject_klass->dispose = gst_encode_bin_dispose;
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gobject_klass->set_property = gst_encode_bin_set_property;
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gobject_klass->get_property = gst_encode_bin_get_property;
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/* Properties */
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/**
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* GstEncodeBin:profile:
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*
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* The #GstEncodingProfile to use. This property must be set before going
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* to %GST_STATE_PAUSED or higher.
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*/
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g_object_class_install_property (gobject_klass, PROP_PROFILE,
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g_param_spec_object ("profile", "Profile",
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"The GstEncodingProfile to use", GST_TYPE_ENCODING_PROFILE,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_klass, PROP_QUEUE_BUFFERS_MAX,
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g_param_spec_uint ("queue-bytes-max", "Max. size (kB)",
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"Max. amount of data in the queue (bytes, 0=disable)",
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0, G_MAXUINT, DEFAULT_QUEUE_BYTES_MAX,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_klass, PROP_QUEUE_BYTES_MAX,
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g_param_spec_uint ("queue-buffers-max", "Max. size (buffers)",
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"Max. number of buffers in the queue (0=disable)", 0, G_MAXUINT,
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DEFAULT_QUEUE_BUFFERS_MAX,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_klass, PROP_QUEUE_TIME_MAX,
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g_param_spec_uint64 ("queue-time-max", "Max. size (ns)",
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"Max. amount of data in the queue (in ns, 0=disable)", 0, G_MAXUINT64,
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DEFAULT_QUEUE_TIME_MAX, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_klass, PROP_AUDIO_JITTER_TOLERANCE,
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g_param_spec_uint64 ("audio-jitter-tolerance", "Audio jitter tolerance",
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"Amount of timestamp jitter/imperfection to allow on audio streams before inserting/dropping samples (ns)",
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0, G_MAXUINT64, DEFAULT_AUDIO_JITTER_TOLERANCE,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_klass, PROP_AVOID_REENCODING,
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g_param_spec_boolean ("avoid-reencoding", "Avoid re-encoding",
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"Whether to re-encode portions of compatible video streams that lay on segment boundaries",
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DEFAULT_AVOID_REENCODING,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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/**
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* GstEncodeBin:flags
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*
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* Control the behaviour of encodebin.
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*/
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g_object_class_install_property (gobject_klass, PROP_FLAGS,
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g_param_spec_flags ("flags", "Flags", "Flags to control behaviour",
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GST_TYPE_ENC_FLAGS, DEFAULT_FLAGS,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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/* Signals */
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/**
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* GstEncodeBin::request-pad
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* @encodebin: a #GstEncodeBin instance
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* @caps: a #GstCaps
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*
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* Use this method to request an unused sink request #GstPad that can take the
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* provided @caps as input. You must release the pad with
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* gst_element_release_request_pad() when you are done with it.
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*
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* Returns: A compatible #GstPad, or %NULL if no compatible #GstPad could be
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* created or is available.
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*/
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gst_encode_bin_signals[SIGNAL_REQUEST_PAD] =
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g_signal_new ("request-pad", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GstEncodeBinClass,
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request_pad), NULL, NULL, gst_encode_marshal_OBJECT__BOXED,
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GST_TYPE_PAD, 1, GST_TYPE_CAPS);
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klass->request_pad = gst_encode_bin_request_pad_signal;
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gst_element_class_add_pad_template (gstelement_klass,
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gst_static_pad_template_get (&muxer_src_template));
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gst_element_class_add_pad_template (gstelement_klass,
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gst_static_pad_template_get (&video_sink_template));
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gst_element_class_add_pad_template (gstelement_klass,
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gst_static_pad_template_get (&audio_sink_template));
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/* gst_element_class_add_pad_template (gstelement_klass, */
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/* gst_static_pad_template_get (&text_sink_template)); */
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gst_element_class_add_pad_template (gstelement_klass,
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gst_static_pad_template_get (&private_sink_template));
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gstelement_klass->change_state =
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GST_DEBUG_FUNCPTR (gst_encode_bin_change_state);
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gstelement_klass->request_new_pad =
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GST_DEBUG_FUNCPTR (gst_encode_bin_request_new_pad);
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gstelement_klass->release_pad =
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GST_DEBUG_FUNCPTR (gst_encode_bin_release_pad);
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gst_element_class_set_details_simple (gstelement_klass,
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"Encoder Bin",
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"Generic/Bin/Encoder",
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"Convenience encoding/muxing element",
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"Edward Hervey <edward.hervey@collabora.co.uk>");
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}
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static void
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gst_encode_bin_dispose (GObject * object)
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{
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GstEncodeBin *ebin = (GstEncodeBin *) object;
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if (ebin->muxers)
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gst_plugin_feature_list_free (ebin->muxers);
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if (ebin->formatters)
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gst_plugin_feature_list_free (ebin->formatters);
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if (ebin->encoders)
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gst_plugin_feature_list_free (ebin->encoders);
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if (ebin->parsers)
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gst_plugin_feature_list_free (ebin->parsers);
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gst_encode_bin_tear_down_profile (ebin);
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if (ebin->raw_video_caps)
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gst_caps_unref (ebin->raw_video_caps);
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if (ebin->raw_audio_caps)
|
|
gst_caps_unref (ebin->raw_audio_caps);
|
|
/* if (ebin->raw_text_caps) */
|
|
/* gst_caps_unref (ebin->raw_text_caps); */
|
|
|
|
G_OBJECT_CLASS (gst_encode_bin_parent_class)->dispose (object);
|
|
}
|
|
|
|
static void
|
|
gst_encode_bin_init (GstEncodeBin * encode_bin)
|
|
{
|
|
GstPadTemplate *tmpl;
|
|
|
|
encode_bin->muxers =
|
|
gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_MUXER,
|
|
GST_RANK_MARGINAL);
|
|
|
|
encode_bin->formatters =
|
|
gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_FORMATTER,
|
|
GST_RANK_SECONDARY);
|
|
|
|
encode_bin->encoders =
|
|
gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_ENCODER,
|
|
GST_RANK_MARGINAL);
|
|
|
|
encode_bin->parsers =
|
|
gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_PARSER,
|
|
GST_RANK_MARGINAL);
|
|
|
|
encode_bin->raw_video_caps = gst_caps_from_string ("video/x-raw");
|
|
encode_bin->raw_audio_caps =
|
|
gst_caps_from_string ("audio/x-raw-int;audio/x-raw-float");
|
|
/* encode_bin->raw_text_caps = */
|
|
/* gst_caps_from_string ("text/plain;text/x-pango-markup"); */
|
|
|
|
encode_bin->queue_buffers_max = DEFAULT_QUEUE_BUFFERS_MAX;
|
|
encode_bin->queue_bytes_max = DEFAULT_QUEUE_BYTES_MAX;
|
|
encode_bin->queue_time_max = DEFAULT_QUEUE_TIME_MAX;
|
|
encode_bin->tolerance = DEFAULT_AUDIO_JITTER_TOLERANCE;
|
|
encode_bin->avoid_reencoding = DEFAULT_AVOID_REENCODING;
|
|
encode_bin->flags = DEFAULT_FLAGS;
|
|
|
|
tmpl = gst_static_pad_template_get (&muxer_src_template);
|
|
encode_bin->srcpad = gst_ghost_pad_new_no_target_from_template ("src", tmpl);
|
|
gst_object_unref (tmpl);
|
|
gst_element_add_pad (GST_ELEMENT_CAST (encode_bin), encode_bin->srcpad);
|
|
}
|
|
|
|
static void
|
|
gst_encode_bin_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstEncodeBin *ebin = (GstEncodeBin *) object;
|
|
|
|
switch (prop_id) {
|
|
case PROP_PROFILE:
|
|
gst_encode_bin_set_profile (ebin,
|
|
(GstEncodingProfile *) g_value_get_object (value));
|
|
break;
|
|
case PROP_QUEUE_BUFFERS_MAX:
|
|
ebin->queue_buffers_max = g_value_get_uint (value);
|
|
break;
|
|
case PROP_QUEUE_BYTES_MAX:
|
|
ebin->queue_bytes_max = g_value_get_uint (value);
|
|
break;
|
|
case PROP_QUEUE_TIME_MAX:
|
|
ebin->queue_time_max = g_value_get_uint64 (value);
|
|
break;
|
|
case PROP_AUDIO_JITTER_TOLERANCE:
|
|
ebin->tolerance = g_value_get_uint64 (value);
|
|
break;
|
|
case PROP_AVOID_REENCODING:
|
|
ebin->avoid_reencoding = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_FLAGS:
|
|
ebin->flags = g_value_get_flags (value);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_encode_bin_get_property (GObject * object, guint prop_id,
|
|
GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstEncodeBin *ebin = (GstEncodeBin *) object;
|
|
|
|
switch (prop_id) {
|
|
case PROP_PROFILE:
|
|
g_value_set_object (value, (GObject *) ebin->profile);
|
|
break;
|
|
case PROP_QUEUE_BUFFERS_MAX:
|
|
g_value_set_uint (value, ebin->queue_buffers_max);
|
|
break;
|
|
case PROP_QUEUE_BYTES_MAX:
|
|
g_value_set_uint (value, ebin->queue_bytes_max);
|
|
break;
|
|
case PROP_QUEUE_TIME_MAX:
|
|
g_value_set_uint64 (value, ebin->queue_time_max);
|
|
break;
|
|
case PROP_AUDIO_JITTER_TOLERANCE:
|
|
g_value_set_uint64 (value, ebin->tolerance);
|
|
break;
|
|
case PROP_AVOID_REENCODING:
|
|
g_value_set_boolean (value, ebin->avoid_reencoding);
|
|
break;
|
|
case PROP_FLAGS:
|
|
g_value_set_flags (value, ebin->flags);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static inline gboolean
|
|
are_raw_caps (const GstCaps * caps)
|
|
{
|
|
GstCaps *raw = gst_static_caps_get (&default_raw_caps);
|
|
|
|
if (gst_caps_can_intersect (caps, raw)) {
|
|
gst_caps_unref (raw);
|
|
return TRUE;
|
|
}
|
|
gst_caps_unref (raw);
|
|
return FALSE;
|
|
}
|
|
|
|
/* Returns the number of time a given stream profile is currently used
|
|
* in encodebin */
|
|
static inline guint
|
|
stream_profile_used_count (GstEncodeBin * ebin, GstEncodingProfile * sprof)
|
|
{
|
|
guint nbprofused = 0;
|
|
GList *tmp;
|
|
|
|
for (tmp = ebin->streams; tmp; tmp = tmp->next) {
|
|
StreamGroup *sgroup = (StreamGroup *) tmp->data;
|
|
|
|
if (sgroup->profile == sprof)
|
|
nbprofused++;
|
|
}
|
|
|
|
return nbprofused;
|
|
}
|
|
|
|
static inline GstEncodingProfile *
|
|
next_unused_stream_profile (GstEncodeBin * ebin, GType ptype, GstCaps * caps)
|
|
{
|
|
GST_DEBUG_OBJECT (ebin, "ptype:%s, caps:%" GST_PTR_FORMAT,
|
|
g_type_name (ptype), caps);
|
|
|
|
if (G_UNLIKELY (ptype == G_TYPE_NONE && caps != NULL)) {
|
|
/* Identify the profile type based on raw caps */
|
|
if (gst_caps_can_intersect (ebin->raw_video_caps, caps))
|
|
ptype = GST_TYPE_ENCODING_VIDEO_PROFILE;
|
|
else if (gst_caps_can_intersect (ebin->raw_audio_caps, caps))
|
|
ptype = GST_TYPE_ENCODING_AUDIO_PROFILE;
|
|
/* else if (gst_caps_can_intersect (ebin->raw_text_caps, caps)) */
|
|
/* ptype = GST_TYPE_ENCODING_TEXT_PROFILE; */
|
|
GST_DEBUG_OBJECT (ebin, "Detected profile type as being %s",
|
|
g_type_name (ptype));
|
|
}
|
|
|
|
if (GST_IS_ENCODING_CONTAINER_PROFILE (ebin->profile)) {
|
|
const GList *tmp;
|
|
|
|
for (tmp =
|
|
gst_encoding_container_profile_get_profiles
|
|
(GST_ENCODING_CONTAINER_PROFILE (ebin->profile)); tmp;
|
|
tmp = tmp->next) {
|
|
GstEncodingProfile *sprof = (GstEncodingProfile *) tmp->data;
|
|
|
|
/* Pick an available Stream profile for which:
|
|
* * either it is of the compatibly raw type,
|
|
* * OR we can pass it through directly without encoding
|
|
*/
|
|
if (G_TYPE_FROM_INSTANCE (sprof) == ptype) {
|
|
guint presence = gst_encoding_profile_get_presence (sprof);
|
|
GST_DEBUG ("Found a stream profile with the same type");
|
|
if ((presence == 0)
|
|
|| (presence > stream_profile_used_count (ebin, sprof)))
|
|
return sprof;
|
|
} else if ((caps != NULL) && (ptype == G_TYPE_NONE)) {
|
|
GstCaps *outcaps;
|
|
gboolean res;
|
|
|
|
outcaps = gst_encoding_profile_get_input_caps (sprof);
|
|
GST_DEBUG ("Unknown stream, seeing if it's compatible with %"
|
|
GST_PTR_FORMAT, outcaps);
|
|
res = gst_caps_can_intersect (outcaps, caps);
|
|
gst_caps_unref (outcaps);
|
|
|
|
if (res)
|
|
return sprof;
|
|
}
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static GstPad *
|
|
request_pad_for_stream (GstEncodeBin * encodebin, GType ptype,
|
|
const gchar * name, GstCaps * caps)
|
|
{
|
|
StreamGroup *sgroup;
|
|
GstEncodingProfile *sprof;
|
|
|
|
GST_DEBUG_OBJECT (encodebin, "name:%s caps:%" GST_PTR_FORMAT, name, caps);
|
|
|
|
/* Figure out if we have a unused GstEncodingProfile we can use for
|
|
* these caps */
|
|
sprof = next_unused_stream_profile (encodebin, ptype, caps);
|
|
|
|
if (G_UNLIKELY (sprof == NULL))
|
|
goto no_stream_profile;
|
|
|
|
sgroup = _create_stream_group (encodebin, sprof, name, caps);
|
|
if (G_UNLIKELY (sgroup == NULL))
|
|
goto no_stream_group;
|
|
|
|
return sgroup->ghostpad;
|
|
|
|
no_stream_profile:
|
|
{
|
|
GST_WARNING_OBJECT (encodebin, "Couldn't find a compatible stream profile");
|
|
return NULL;
|
|
}
|
|
|
|
no_stream_group:
|
|
{
|
|
GST_WARNING_OBJECT (encodebin, "Couldn't create a StreamGroup");
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static GstPad *
|
|
gst_encode_bin_request_new_pad (GstElement * element,
|
|
GstPadTemplate * templ, const gchar * name, const GstCaps * caps)
|
|
{
|
|
GstEncodeBin *ebin = (GstEncodeBin *) element;
|
|
GstPad *res = NULL;
|
|
|
|
GST_DEBUG_OBJECT (element, "templ:%s, name:%s", templ->name_template, name);
|
|
|
|
/* Identify the stream group */
|
|
if (caps != NULL) {
|
|
res = request_pad_for_stream (ebin, G_TYPE_NONE, name, (GstCaps *) caps);
|
|
}
|
|
|
|
if (res == NULL) {
|
|
GType ptype = G_TYPE_NONE;
|
|
|
|
if (!strcmp (templ->name_template, "video_%d"))
|
|
ptype = GST_TYPE_ENCODING_VIDEO_PROFILE;
|
|
else if (!strcmp (templ->name_template, "audio_%d"))
|
|
ptype = GST_TYPE_ENCODING_AUDIO_PROFILE;
|
|
/* else if (!strcmp (templ->name_template, "text_%d")) */
|
|
/* ptype = GST_TYPE_ENCODING_TEXT_PROFILE; */
|
|
|
|
/* FIXME : Check uniqueness of pad */
|
|
/* FIXME : Check that the requested number is the last one, and if not,
|
|
* update the last_pad_id variable so that we don't create a pad with
|
|
* the same name/number in the future */
|
|
|
|
res = request_pad_for_stream (ebin, ptype, name, NULL);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static GstPad *
|
|
gst_encode_bin_request_pad_signal (GstEncodeBin * encodebin, GstCaps * caps)
|
|
{
|
|
GstPad *pad = request_pad_for_stream (encodebin, G_TYPE_NONE, NULL, caps);
|
|
|
|
return pad ? GST_PAD_CAST (gst_object_ref (pad)) : NULL;
|
|
}
|
|
|
|
static inline StreamGroup *
|
|
find_stream_group_from_pad (GstEncodeBin * ebin, GstPad * pad)
|
|
{
|
|
GList *tmp;
|
|
|
|
for (tmp = ebin->streams; tmp; tmp = tmp->next) {
|
|
StreamGroup *sgroup = (StreamGroup *) tmp->data;
|
|
if (G_UNLIKELY (sgroup->ghostpad == pad))
|
|
return sgroup;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
gst_encode_bin_release_pad (GstElement * element, GstPad * pad)
|
|
{
|
|
GstEncodeBin *ebin = (GstEncodeBin *) element;
|
|
StreamGroup *sgroup;
|
|
|
|
/* Find the associated StreamGroup */
|
|
|
|
sgroup = find_stream_group_from_pad (ebin, pad);
|
|
if (G_UNLIKELY (sgroup == NULL))
|
|
goto no_stream_group;
|
|
|
|
/* Release objects/data associated with the StreamGroup */
|
|
stream_group_remove (ebin, sgroup);
|
|
|
|
return;
|
|
|
|
no_stream_group:
|
|
{
|
|
GST_WARNING_OBJECT (ebin, "Couldn't find corresponding StreamGroup");
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* Create a parser for the given stream profile */
|
|
static inline GstElement *
|
|
_get_parser (GstEncodeBin * ebin, GstEncodingProfile * sprof)
|
|
{
|
|
GList *parsers1, *parsers, *tmp;
|
|
GstElement *parser = NULL;
|
|
GstElementFactory *parserfact = NULL;
|
|
const GstCaps *format;
|
|
|
|
format = gst_encoding_profile_get_format (sprof);
|
|
|
|
GST_DEBUG ("Getting list of parsers for format %" GST_PTR_FORMAT, format);
|
|
|
|
/* FIXME : requesting twice the parsers twice is a bit ugly, we should
|
|
* have a method to request on more than one condition */
|
|
parsers1 =
|
|
gst_element_factory_list_filter (ebin->parsers, format,
|
|
GST_PAD_SRC, FALSE);
|
|
parsers =
|
|
gst_element_factory_list_filter (parsers1, format, GST_PAD_SINK, FALSE);
|
|
gst_plugin_feature_list_free (parsers1);
|
|
|
|
if (G_UNLIKELY (parsers == NULL)) {
|
|
GST_DEBUG ("Couldn't find any compatible parsers");
|
|
return NULL;
|
|
}
|
|
|
|
for (tmp = parsers; tmp; tmp = tmp->next) {
|
|
/* FIXME : We're only picking the first one so far */
|
|
/* FIXME : signal the user if he wants this */
|
|
parserfact = (GstElementFactory *) tmp->data;
|
|
break;
|
|
}
|
|
|
|
if (parserfact)
|
|
parser = gst_element_factory_create (parserfact, NULL);
|
|
|
|
gst_plugin_feature_list_free (parsers);
|
|
|
|
return parser;
|
|
}
|
|
|
|
static GstElement *
|
|
_create_element_and_set_preset (GstElementFactory * factory,
|
|
const gchar * preset, const gchar * name)
|
|
{
|
|
GstElement *res = NULL;
|
|
|
|
GST_DEBUG ("Creating element from factory %s", GST_OBJECT_NAME (factory));
|
|
res = gst_element_factory_create (factory, name);
|
|
if (preset && GST_IS_PRESET (res) &&
|
|
!gst_preset_load_preset (GST_PRESET (res), preset)) {
|
|
GST_WARNING ("Couldn't set preset [%s] on element [%s]",
|
|
preset, GST_OBJECT_NAME (factory));
|
|
gst_object_unref (res);
|
|
res = NULL;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
/* Create the encoder for the given stream profile */
|
|
static inline GstElement *
|
|
_get_encoder (GstEncodeBin * ebin, GstEncodingProfile * sprof)
|
|
{
|
|
GList *encoders, *tmp;
|
|
GstElement *encoder = NULL;
|
|
GstElementFactory *encoderfact = NULL;
|
|
const GstCaps *format;
|
|
const gchar *preset;
|
|
|
|
format = gst_encoding_profile_get_format (sprof);
|
|
preset = gst_encoding_profile_get_preset (sprof);
|
|
|
|
GST_DEBUG ("Getting list of encoders for format %" GST_PTR_FORMAT, format);
|
|
|
|
/* If stream caps are raw, return identity */
|
|
if (G_UNLIKELY (are_raw_caps (format))) {
|
|
GST_DEBUG ("Stream format is raw, returning identity as the encoder");
|
|
encoder = gst_element_factory_make ("identity", NULL);
|
|
goto beach;
|
|
}
|
|
|
|
encoders =
|
|
gst_element_factory_list_filter (ebin->encoders, format,
|
|
GST_PAD_SRC, FALSE);
|
|
|
|
if (G_UNLIKELY (encoders == NULL)) {
|
|
GST_DEBUG ("Couldn't find any compatible encoders");
|
|
goto beach;
|
|
}
|
|
|
|
for (tmp = encoders; tmp; tmp = tmp->next) {
|
|
encoderfact = (GstElementFactory *) tmp->data;
|
|
if ((encoder = _create_element_and_set_preset (encoderfact, preset, NULL)))
|
|
break;
|
|
}
|
|
|
|
gst_plugin_feature_list_free (encoders);
|
|
|
|
beach:
|
|
return encoder;
|
|
}
|
|
|
|
static GstPad *
|
|
local_element_request_pad (GstElement * element, GstPadTemplate * templ,
|
|
const gchar * name, const GstCaps * caps)
|
|
{
|
|
GstPad *newpad = NULL;
|
|
GstElementClass *oclass;
|
|
|
|
oclass = GST_ELEMENT_GET_CLASS (element);
|
|
|
|
if (oclass->request_new_pad)
|
|
newpad = (oclass->request_new_pad) (element, templ, name, caps);
|
|
|
|
if (newpad)
|
|
gst_object_ref (newpad);
|
|
|
|
return newpad;
|
|
}
|
|
|
|
static GstPad *
|
|
gst_element_get_pad_from_template (GstElement * element, GstPadTemplate * templ)
|
|
{
|
|
GstPad *ret = NULL;
|
|
GstPadPresence presence;
|
|
|
|
/* If this function is ever exported, we need check the validity of `element'
|
|
* and `templ', and to make sure the template actually belongs to the
|
|
* element. */
|
|
|
|
presence = GST_PAD_TEMPLATE_PRESENCE (templ);
|
|
|
|
switch (presence) {
|
|
case GST_PAD_ALWAYS:
|
|
case GST_PAD_SOMETIMES:
|
|
ret = gst_element_get_static_pad (element, templ->name_template);
|
|
if (!ret && presence == GST_PAD_ALWAYS)
|
|
g_warning
|
|
("Element %s has an ALWAYS template %s, but no pad of the same name",
|
|
GST_OBJECT_NAME (element), templ->name_template);
|
|
break;
|
|
|
|
case GST_PAD_REQUEST:
|
|
ret = gst_element_request_pad (element, templ, NULL, NULL);
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* FIXME : Improve algorithm for finding compatible muxer sink pad */
|
|
static inline GstPad *
|
|
get_compatible_muxer_sink_pad (GstEncodeBin * ebin, GstElement * encoder,
|
|
GstCaps * sinkcaps)
|
|
{
|
|
GstPad *sinkpad;
|
|
GstPadTemplate *srctempl = NULL;
|
|
GstPadTemplate *sinktempl;
|
|
|
|
if (encoder) {
|
|
GstPad *srcpad;
|
|
srcpad = gst_element_get_static_pad (encoder, "src");
|
|
|
|
srctempl = gst_pad_get_pad_template (srcpad);
|
|
|
|
GST_DEBUG_OBJECT (ebin,
|
|
"Attempting to find pad from muxer %s compatible with %s:%s",
|
|
GST_ELEMENT_NAME (ebin->muxer), GST_DEBUG_PAD_NAME (srcpad));
|
|
|
|
gst_object_unref (srcpad);
|
|
sinktempl = gst_element_get_compatible_pad_template (ebin->muxer, srctempl);
|
|
gst_object_unref (srctempl);
|
|
} else {
|
|
srctempl =
|
|
gst_pad_template_new ("whatever", GST_PAD_SRC, GST_PAD_ALWAYS,
|
|
sinkcaps);
|
|
g_assert (srctempl != NULL);
|
|
sinktempl = gst_element_get_compatible_pad_template (ebin->muxer, srctempl);
|
|
g_object_unref (srctempl);
|
|
}
|
|
|
|
if (G_UNLIKELY (sinktempl == NULL))
|
|
goto no_template;
|
|
|
|
sinkpad = gst_element_get_pad_from_template (ebin->muxer, sinktempl);
|
|
|
|
return sinkpad;
|
|
|
|
no_template:
|
|
{
|
|
GST_WARNING_OBJECT (ebin, "No compatible pad available on muxer");
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
_has_class (GstElement * element, const gchar * classname)
|
|
{
|
|
GstElementClass *klass;
|
|
const gchar *value;
|
|
|
|
klass = GST_ELEMENT_GET_CLASS (element);
|
|
value = gst_element_class_get_metadata (klass, GST_ELEMENT_METADATA_KLASS);
|
|
|
|
return strstr (value, classname) != NULL;
|
|
}
|
|
|
|
/* FIXME : Add handling of streams that don't need encoding */
|
|
/* FIXME : Add handling of streams that don't require conversion elements */
|
|
/*
|
|
* Create the elements, StreamGroup, add the sink pad, link it to the muxer
|
|
*
|
|
* sinkpadname: If non-NULL, that name will be assigned to the sink ghost pad
|
|
* sinkcaps: If non-NULL will be used to figure out how to setup the group */
|
|
static StreamGroup *
|
|
_create_stream_group (GstEncodeBin * ebin, GstEncodingProfile * sprof,
|
|
const gchar * sinkpadname, GstCaps * sinkcaps)
|
|
{
|
|
StreamGroup *sgroup = NULL;
|
|
GstPad *sinkpad, *srcpad, *muxerpad = NULL;
|
|
/* Element we will link to the encoder */
|
|
GstElement *last = NULL;
|
|
GList *tmp, *tosync = NULL;
|
|
GstCaps *format, *restriction;
|
|
const gchar *missing_element_name;
|
|
|
|
format = gst_encoding_profile_get_format (sprof);
|
|
restriction = gst_encoding_profile_get_restriction (sprof);
|
|
|
|
GST_DEBUG ("Creating group. format %" GST_PTR_FORMAT ", for caps %"
|
|
GST_PTR_FORMAT, format, sinkcaps);
|
|
GST_DEBUG ("avoid_reencoding:%d", ebin->avoid_reencoding);
|
|
|
|
sgroup = g_slice_new0 (StreamGroup);
|
|
sgroup->ebin = ebin;
|
|
sgroup->profile = sprof;
|
|
|
|
/* NOTE for people reading this code:
|
|
*
|
|
* We construct the group starting by the furthest downstream element
|
|
* and making our way up adding/syncing/linking as we go.
|
|
*
|
|
* There are two parallel paths:
|
|
* * One for raw data which goes through converters and encoders
|
|
* * One for already encoded data
|
|
*/
|
|
|
|
/* Exception to the rule above:
|
|
* We check if we have an available encoder so we can abort early */
|
|
/* FIXME : What if we only want to do passthrough ??? */
|
|
GST_LOG ("Checking for encoder availability");
|
|
sgroup->encoder = _get_encoder (ebin, sprof);
|
|
if (G_UNLIKELY (sgroup->encoder == NULL))
|
|
goto no_encoder;
|
|
|
|
/* Muxer.
|
|
* If we are handling a container profile, figure out if the muxer has a
|
|
* sinkpad compatible with the selected profile */
|
|
if (ebin->muxer) {
|
|
muxerpad = get_compatible_muxer_sink_pad (ebin, NULL, format);
|
|
if (G_UNLIKELY (muxerpad == NULL))
|
|
goto no_muxer_pad;
|
|
|
|
}
|
|
|
|
/* Output Queue.
|
|
* We only use a 1buffer long queue here, the actual queueing will be done
|
|
* in the input queue */
|
|
last = sgroup->outqueue = gst_element_factory_make ("queue", NULL);
|
|
g_object_set (sgroup->outqueue, "max-size-buffers", (guint32) 1,
|
|
"max-size-bytes", (guint32) 0, "max-size-time", (guint64) 0, NULL);
|
|
|
|
gst_bin_add (GST_BIN (ebin), sgroup->outqueue);
|
|
tosync = g_list_append (tosync, sgroup->outqueue);
|
|
srcpad = gst_element_get_static_pad (sgroup->outqueue, "src");
|
|
if (muxerpad) {
|
|
if (G_UNLIKELY (fast_pad_link (srcpad, muxerpad) != GST_PAD_LINK_OK)) {
|
|
goto muxer_link_failure;
|
|
}
|
|
gst_object_unref (muxerpad);
|
|
} else {
|
|
gst_ghost_pad_set_target (GST_GHOST_PAD (ebin->srcpad), srcpad);
|
|
}
|
|
gst_object_unref (srcpad);
|
|
|
|
/* Check if we need a formatter
|
|
* If we have no muxer or
|
|
* if the muxer isn't a formatter and doesn't implement the tagsetter interface
|
|
*/
|
|
if (!ebin->muxer || (!GST_IS_TAG_SETTER (ebin->muxer)
|
|
|| !_has_class (ebin->muxer, "Formatter"))) {
|
|
sgroup->formatter = _get_formatter (ebin, sprof);
|
|
if (sgroup->formatter) {
|
|
GST_DEBUG ("Adding formatter for %" GST_PTR_FORMAT, format);
|
|
|
|
gst_bin_add (GST_BIN (ebin), sgroup->formatter);
|
|
tosync = g_list_append (tosync, sgroup->formatter);
|
|
if (G_UNLIKELY (!fast_element_link (sgroup->formatter, last)))
|
|
goto formatter_link_failure;
|
|
last = sgroup->formatter;
|
|
}
|
|
}
|
|
|
|
|
|
/* Output capsfilter
|
|
* This will receive the format caps from the streamprofile */
|
|
GST_DEBUG ("Adding output capsfilter for %" GST_PTR_FORMAT, format);
|
|
sgroup->outfilter = gst_element_factory_make ("capsfilter", NULL);
|
|
g_object_set (sgroup->outfilter, "caps", format, NULL);
|
|
|
|
gst_bin_add (GST_BIN (ebin), sgroup->outfilter);
|
|
tosync = g_list_append (tosync, sgroup->outfilter);
|
|
if (G_UNLIKELY (!fast_element_link (sgroup->outfilter, last)))
|
|
goto outfilter_link_failure;
|
|
last = sgroup->outfilter;
|
|
|
|
|
|
/* FIXME :
|
|
*
|
|
* The usage of parsers in encoding/muxing scenarios is
|
|
* just too undefined to just use as-is.
|
|
*
|
|
* Take the use-case where you want to re-mux a stream of type
|
|
* "my/media". You create a StreamEncodingProfile with that type
|
|
* as the target (as-is). And you use decodebin2/uridecodebin
|
|
* upstream.
|
|
*
|
|
* * demuxer exposes "my/media"
|
|
* * a parser is available for "my/media" which has a source pad
|
|
* caps of "my/media,parsed=True"
|
|
* * decodebin2/uridecodebin exposes a new pad with the parsed caps
|
|
* * You request a new stream from encodebin, which will match the
|
|
* streamprofile and creates a group (i.e. going through this method)
|
|
* There is a matching parser (the same used in the decoder) whose
|
|
* source pad caps intersects with the stream profile caps, you
|
|
* therefore use it...
|
|
* * ... but that parser has a "my/media,parsed=False" sink pad caps
|
|
* * ... and you can't link your decodebin pad to encodebin.
|
|
*
|
|
* In the end, it comes down to parsers only taking into account the
|
|
* decoding use-cases.
|
|
*
|
|
* One way to solve that might be to :
|
|
* * Make parsers sink pad caps be "framed={False,True}" and the
|
|
* source pad caps be "framed=True"
|
|
* * Modify decodebin2 accordingly to avoid looping and chaining
|
|
* an infinite number of parsers
|
|
*
|
|
* Another way would be to have "well-known" caps properties to specify
|
|
* whether a stream has been parsed or not.
|
|
* * currently we fail. aacparse uses 'framed' and mp3parse uses 'parsed'
|
|
*/
|
|
/* FIXME : Re-enable once parser situation is un-$#*@(%$#ed */
|
|
#if 0
|
|
/* Parser.
|
|
* FIXME : identify smart parsers (used for re-encoding) */
|
|
sgroup->parser = _get_parser (ebin, sprof);
|
|
|
|
if (sgroup->parser != NULL) {
|
|
GST_DEBUG ("Got a parser %s", GST_ELEMENT_NAME (sgroup->parser));
|
|
gst_bin_add (GST_BIN (ebin), sgroup->parser);
|
|
tosync = g_list_append (tosync, sgroup->parser);
|
|
if (G_UNLIKELY (!gst_element_link (sgroup->parser, last)))
|
|
goto parser_link_failure;
|
|
last = sgroup->parser;
|
|
}
|
|
#endif
|
|
|
|
/* Stream combiner */
|
|
sgroup->combiner = g_object_new (GST_TYPE_STREAM_COMBINER, NULL);
|
|
|
|
gst_bin_add (GST_BIN (ebin), sgroup->combiner);
|
|
tosync = g_list_append (tosync, sgroup->combiner);
|
|
if (G_UNLIKELY (!fast_element_link (sgroup->combiner, last)))
|
|
goto combiner_link_failure;
|
|
|
|
|
|
/* Stream splitter */
|
|
sgroup->splitter = g_object_new (GST_TYPE_STREAM_SPLITTER, NULL);
|
|
|
|
gst_bin_add (GST_BIN (ebin), sgroup->splitter);
|
|
tosync = g_list_append (tosync, sgroup->splitter);
|
|
|
|
/* Input queue
|
|
* FIXME : figure out what max-size to use for the input queue */
|
|
sgroup->inqueue = gst_element_factory_make ("queue", NULL);
|
|
g_object_set (sgroup->inqueue, "max-size-buffers",
|
|
(guint32) ebin->queue_buffers_max, "max-size-bytes",
|
|
(guint32) ebin->queue_bytes_max, "max-size-time",
|
|
(guint64) ebin->queue_time_max, NULL);
|
|
|
|
gst_bin_add (GST_BIN (ebin), sgroup->inqueue);
|
|
tosync = g_list_append (tosync, sgroup->inqueue);
|
|
if (G_UNLIKELY (!fast_element_link (sgroup->inqueue, sgroup->splitter)))
|
|
goto splitter_link_failure;
|
|
|
|
/* Expose input queue sink pad as ghostpad */
|
|
sinkpad = gst_element_get_static_pad (sgroup->inqueue, "sink");
|
|
if (sinkpadname == NULL) {
|
|
gchar *pname =
|
|
g_strdup_printf ("%s_%d", gst_encoding_profile_get_type_nick (sprof),
|
|
ebin->last_pad_id++);
|
|
GST_DEBUG ("Adding ghost pad %s", pname);
|
|
sgroup->ghostpad = gst_ghost_pad_new (pname, sinkpad);
|
|
g_free (pname);
|
|
} else
|
|
sgroup->ghostpad = gst_ghost_pad_new (sinkpadname, sinkpad);
|
|
gst_object_unref (sinkpad);
|
|
|
|
|
|
/* Path 1 : Already-encoded data */
|
|
sinkpad =
|
|
local_element_request_pad (sgroup->combiner, NULL, "passthroughsink",
|
|
NULL);
|
|
if (G_UNLIKELY (sinkpad == NULL))
|
|
goto no_combiner_sinkpad;
|
|
|
|
if (ebin->avoid_reencoding) {
|
|
GstCaps *tmpcaps;
|
|
|
|
GST_DEBUG ("Asked to use Smart Encoder");
|
|
sgroup->smartencoder = g_object_new (GST_TYPE_SMART_ENCODER, NULL);
|
|
|
|
/* Check if stream format is compatible */
|
|
srcpad = gst_element_get_static_pad (sgroup->smartencoder, "src");
|
|
tmpcaps = gst_pad_get_caps (srcpad, NULL);
|
|
if (!gst_caps_can_intersect (tmpcaps, format)) {
|
|
GST_DEBUG ("We don't have a smart encoder for the stream format");
|
|
gst_object_unref (sgroup->smartencoder);
|
|
sgroup->smartencoder = NULL;
|
|
} else {
|
|
gst_bin_add ((GstBin *) ebin, sgroup->smartencoder);
|
|
fast_pad_link (srcpad, sinkpad);
|
|
tosync = g_list_append (tosync, sgroup->smartencoder);
|
|
sinkpad = gst_element_get_static_pad (sgroup->smartencoder, "sink");
|
|
}
|
|
gst_caps_unref (tmpcaps);
|
|
g_object_unref (srcpad);
|
|
}
|
|
|
|
srcpad =
|
|
local_element_request_pad (sgroup->splitter, NULL, "passthroughsrc",
|
|
NULL);
|
|
if (G_UNLIKELY (srcpad == NULL))
|
|
goto no_splitter_srcpad;
|
|
|
|
/* Go straight to splitter */
|
|
if (G_UNLIKELY (fast_pad_link (srcpad, sinkpad) != GST_PAD_LINK_OK))
|
|
goto passthrough_link_failure;
|
|
g_object_unref (sinkpad);
|
|
g_object_unref (srcpad);
|
|
|
|
|
|
/* Path 2 : Conversion / Encoding */
|
|
|
|
/* 1. Create the encoder */
|
|
GST_LOG ("Adding encoder");
|
|
last = sgroup->encoder;
|
|
gst_bin_add ((GstBin *) ebin, sgroup->encoder);
|
|
tosync = g_list_append (tosync, sgroup->encoder);
|
|
|
|
sinkpad =
|
|
local_element_request_pad (sgroup->combiner, NULL, "encodingsink", NULL);
|
|
if (G_UNLIKELY (sinkpad == NULL))
|
|
goto no_combiner_sinkpad;
|
|
srcpad = gst_element_get_static_pad (sgroup->encoder, "src");
|
|
if (G_UNLIKELY (fast_pad_link (srcpad, sinkpad) != GST_PAD_LINK_OK))
|
|
goto encoder_link_failure;
|
|
g_object_unref (sinkpad);
|
|
g_object_unref (srcpad);
|
|
|
|
|
|
/* 3. Create the conversion/restriction elements */
|
|
/* 3.1. capsfilter */
|
|
if (restriction && !gst_caps_is_any (restriction)) {
|
|
GST_LOG ("Adding capsfilter for restriction caps : %" GST_PTR_FORMAT,
|
|
restriction);
|
|
|
|
last = sgroup->capsfilter = gst_element_factory_make ("capsfilter", NULL);
|
|
g_object_set (sgroup->capsfilter, "caps", restriction, NULL);
|
|
gst_bin_add ((GstBin *) ebin, sgroup->capsfilter);
|
|
tosync = g_list_append (tosync, sgroup->capsfilter);
|
|
fast_element_link (sgroup->capsfilter, sgroup->encoder);
|
|
}
|
|
|
|
/* 3.2. restriction elements */
|
|
/* FIXME : Once we have properties for specific converters, use those */
|
|
if (GST_IS_ENCODING_VIDEO_PROFILE (sprof)) {
|
|
const gboolean native_video = !!(ebin->flags & GST_ENC_FLAG_NATIVE_VIDEO);
|
|
GstElement *cspace = NULL, *scale, *vrate, *cspace2 = NULL;
|
|
|
|
GST_LOG ("Adding conversion elements for video stream");
|
|
|
|
if (!native_video) {
|
|
cspace = gst_element_factory_make ("videoconvert", NULL);
|
|
scale = gst_element_factory_make ("videoscale", NULL);
|
|
if (!scale) {
|
|
missing_element_name = "videoscale";
|
|
goto missing_element;
|
|
}
|
|
/* 4-tap scaling and black borders */
|
|
g_object_set (scale, "method", 2, "add-borders", TRUE, NULL);
|
|
cspace2 = gst_element_factory_make ("videoconvert", NULL);
|
|
|
|
if (!cspace || !cspace2) {
|
|
missing_element_name = "videoconvert";
|
|
goto missing_element;
|
|
}
|
|
|
|
gst_bin_add_many ((GstBin *) ebin, cspace, scale, cspace2, NULL);
|
|
tosync = g_list_append (tosync, cspace);
|
|
tosync = g_list_append (tosync, scale);
|
|
tosync = g_list_append (tosync, cspace2);
|
|
|
|
sgroup->converters = g_list_prepend (sgroup->converters, cspace);
|
|
sgroup->converters = g_list_prepend (sgroup->converters, scale);
|
|
sgroup->converters = g_list_prepend (sgroup->converters, cspace2);
|
|
|
|
if (!fast_element_link (cspace, scale) ||
|
|
!fast_element_link (scale, cspace2))
|
|
goto converter_link_failure;
|
|
}
|
|
|
|
if (!gst_encoding_video_profile_get_variableframerate
|
|
(GST_ENCODING_VIDEO_PROFILE (sprof))) {
|
|
vrate = gst_element_factory_make ("videorate", NULL);
|
|
if (!vrate) {
|
|
missing_element_name = "videorate";
|
|
goto missing_element;
|
|
}
|
|
|
|
gst_bin_add ((GstBin *) ebin, vrate);
|
|
tosync = g_list_prepend (tosync, vrate);
|
|
sgroup->converters = g_list_prepend (sgroup->converters, vrate);
|
|
|
|
if ((!native_video && !fast_element_link (cspace2, vrate))
|
|
|| !fast_element_link (vrate, last))
|
|
goto converter_link_failure;
|
|
|
|
if (!native_video)
|
|
last = cspace;
|
|
else
|
|
last = vrate;
|
|
} else if (!native_video) {
|
|
if (!fast_element_link (cspace2, last))
|
|
goto converter_link_failure;
|
|
last = cspace;
|
|
}
|
|
|
|
} else if (GST_IS_ENCODING_AUDIO_PROFILE (sprof)
|
|
&& !(ebin->flags & GST_ENC_FLAG_NATIVE_AUDIO)) {
|
|
GstElement *aconv, *ares, *arate, *aconv2;
|
|
|
|
GST_LOG ("Adding conversion elements for audio stream");
|
|
|
|
arate = gst_element_factory_make ("audiorate", NULL);
|
|
g_object_set (arate, "tolerance", (guint64) ebin->tolerance, NULL);
|
|
if (!arate) {
|
|
missing_element_name = "audiorate";
|
|
goto missing_element;
|
|
}
|
|
aconv = gst_element_factory_make ("audioconvert", NULL);
|
|
aconv2 = gst_element_factory_make ("audioconvert", NULL);
|
|
ares = gst_element_factory_make ("audioresample", NULL);
|
|
if (!aconv || !aconv2) {
|
|
missing_element_name = "audioconvert";
|
|
goto missing_element;
|
|
}
|
|
if (!ares) {
|
|
missing_element_name = "audioresample";
|
|
goto missing_element;
|
|
}
|
|
|
|
gst_bin_add_many ((GstBin *) ebin, arate, aconv, ares, aconv2, NULL);
|
|
tosync = g_list_append (tosync, arate);
|
|
tosync = g_list_append (tosync, aconv);
|
|
tosync = g_list_append (tosync, ares);
|
|
tosync = g_list_append (tosync, aconv2);
|
|
if (!fast_element_link (arate, aconv) ||
|
|
!fast_element_link (aconv, ares) ||
|
|
!fast_element_link (ares, aconv2) || !fast_element_link (aconv2, last))
|
|
goto converter_link_failure;
|
|
|
|
sgroup->converters = g_list_prepend (sgroup->converters, arate);
|
|
sgroup->converters = g_list_prepend (sgroup->converters, aconv);
|
|
sgroup->converters = g_list_prepend (sgroup->converters, ares);
|
|
sgroup->converters = g_list_prepend (sgroup->converters, aconv2);
|
|
|
|
last = arate;
|
|
}
|
|
|
|
/* Link to stream splitter */
|
|
sinkpad = gst_element_get_static_pad (last, "sink");
|
|
srcpad =
|
|
local_element_request_pad (sgroup->splitter, NULL, "encodingsrc", NULL);
|
|
if (G_UNLIKELY (srcpad == NULL))
|
|
goto no_splitter_srcpad;
|
|
if (G_UNLIKELY (fast_pad_link (srcpad, sinkpad) != GST_PAD_LINK_OK))
|
|
goto splitter_encoding_failure;
|
|
g_object_unref (sinkpad);
|
|
g_object_unref (srcpad);
|
|
|
|
/* End of Stream 2 setup */
|
|
|
|
/* Sync all elements to parent state */
|
|
for (tmp = tosync; tmp; tmp = tmp->next)
|
|
gst_element_sync_state_with_parent ((GstElement *) tmp->data);
|
|
g_list_free (tosync);
|
|
|
|
/* Add ghostpad */
|
|
GST_DEBUG ("Adding ghostpad %s:%s", GST_DEBUG_PAD_NAME (sgroup->ghostpad));
|
|
gst_pad_set_active (sgroup->ghostpad, TRUE);
|
|
gst_element_add_pad ((GstElement *) ebin, sgroup->ghostpad);
|
|
|
|
/* Add StreamGroup to our list of streams */
|
|
|
|
GST_DEBUG
|
|
("Done creating elements, adding StreamGroup to our controlled stream list");
|
|
|
|
ebin->streams = g_list_prepend (ebin->streams, sgroup);
|
|
|
|
if (format)
|
|
gst_caps_unref (format);
|
|
if (restriction)
|
|
gst_caps_unref (restriction);
|
|
|
|
return sgroup;
|
|
|
|
splitter_encoding_failure:
|
|
GST_ERROR_OBJECT (ebin, "Error linking splitter to encoding stream");
|
|
goto cleanup;
|
|
|
|
no_encoder:
|
|
GST_ERROR_OBJECT (ebin, "Couldn't create encoder for format %" GST_PTR_FORMAT,
|
|
format);
|
|
/* missing plugin support */
|
|
gst_element_post_message (GST_ELEMENT_CAST (ebin),
|
|
gst_missing_encoder_message_new (GST_ELEMENT_CAST (ebin), format));
|
|
GST_ELEMENT_ERROR (ebin, CORE, MISSING_PLUGIN, (NULL),
|
|
("Couldn't create encoder for format %" GST_PTR_FORMAT, format));
|
|
goto cleanup;
|
|
|
|
no_muxer_pad:
|
|
GST_ERROR_OBJECT (ebin,
|
|
"Couldn't find a compatible muxer pad to link encoder to");
|
|
goto cleanup;
|
|
|
|
missing_element:
|
|
gst_element_post_message (GST_ELEMENT_CAST (ebin),
|
|
gst_missing_element_message_new (GST_ELEMENT_CAST (ebin),
|
|
missing_element_name));
|
|
GST_ELEMENT_ERROR (ebin, CORE, MISSING_PLUGIN,
|
|
(_("Missing element '%s' - check your GStreamer installation."),
|
|
missing_element_name), (NULL));
|
|
goto cleanup;
|
|
|
|
encoder_link_failure:
|
|
GST_ERROR_OBJECT (ebin, "Failed to link the encoder");
|
|
goto cleanup;
|
|
|
|
muxer_link_failure:
|
|
GST_ERROR_OBJECT (ebin, "Couldn't link encoder to muxer");
|
|
goto cleanup;
|
|
|
|
formatter_link_failure:
|
|
GST_ERROR_OBJECT (ebin, "Couldn't link output filter to output queue");
|
|
goto cleanup;
|
|
|
|
outfilter_link_failure:
|
|
GST_ERROR_OBJECT (ebin,
|
|
"Couldn't link output filter to output queue/formatter");
|
|
goto cleanup;
|
|
|
|
passthrough_link_failure:
|
|
GST_ERROR_OBJECT (ebin, "Failed linking splitter in passthrough mode");
|
|
goto cleanup;
|
|
|
|
no_splitter_srcpad:
|
|
GST_ERROR_OBJECT (ebin, "Couldn't get a source pad from the splitter");
|
|
goto cleanup;
|
|
|
|
no_combiner_sinkpad:
|
|
GST_ERROR_OBJECT (ebin, "Couldn't get a sink pad from the combiner");
|
|
goto cleanup;
|
|
|
|
splitter_link_failure:
|
|
GST_ERROR_OBJECT (ebin, "Failure linking to the splitter");
|
|
goto cleanup;
|
|
|
|
combiner_link_failure:
|
|
GST_ERROR_OBJECT (ebin, "Failure linking to the combiner");
|
|
goto cleanup;
|
|
|
|
#if 0
|
|
parser_link_failure:
|
|
GST_ERROR_OBJECT (ebin, "Failure linking the parser");
|
|
goto cleanup;
|
|
#endif
|
|
|
|
converter_link_failure:
|
|
GST_ERROR_OBJECT (ebin, "Failure linking the video converters");
|
|
goto cleanup;
|
|
|
|
cleanup:
|
|
/* FIXME : Actually properly cleanup everything */
|
|
if (format)
|
|
gst_caps_unref (format);
|
|
if (restriction)
|
|
gst_caps_unref (restriction);
|
|
g_slice_free (StreamGroup, sgroup);
|
|
return NULL;
|
|
}
|
|
|
|
static gboolean
|
|
_factory_can_sink_caps (GstElementFactory * factory, const GstCaps * caps)
|
|
{
|
|
GList *templates = factory->staticpadtemplates;
|
|
|
|
while (templates) {
|
|
GstStaticPadTemplate *template = (GstStaticPadTemplate *) templates->data;
|
|
|
|
if (template->direction == GST_PAD_SINK) {
|
|
GstCaps *tmp = gst_static_caps_get (&template->static_caps);
|
|
|
|
if (gst_caps_can_intersect (tmp, caps)) {
|
|
gst_caps_unref (tmp);
|
|
return TRUE;
|
|
}
|
|
gst_caps_unref (tmp);
|
|
}
|
|
templates = g_list_next (templates);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static inline GstElement *
|
|
_get_formatter (GstEncodeBin * ebin, GstEncodingProfile * sprof)
|
|
{
|
|
GList *formatters, *tmpfmtr;
|
|
GstElement *formatter = NULL;
|
|
GstElementFactory *formatterfact = NULL;
|
|
const GstCaps *format;
|
|
const gchar *preset;
|
|
|
|
format = gst_encoding_profile_get_format (sprof);
|
|
preset = gst_encoding_profile_get_preset (sprof);
|
|
|
|
GST_DEBUG ("Getting list of formatters for format %" GST_PTR_FORMAT, format);
|
|
|
|
formatters =
|
|
gst_element_factory_list_filter (ebin->formatters, format, GST_PAD_SRC,
|
|
FALSE);
|
|
|
|
if (formatters == NULL)
|
|
goto beach;
|
|
|
|
/* FIXME : signal the user if he wants this */
|
|
for (tmpfmtr = formatters; tmpfmtr; tmpfmtr = tmpfmtr->next) {
|
|
formatterfact = (GstElementFactory *) tmpfmtr->data;
|
|
|
|
GST_DEBUG_OBJECT (ebin, "Trying formatter %s",
|
|
GST_OBJECT_NAME (formatterfact));
|
|
|
|
if ((formatter =
|
|
_create_element_and_set_preset (formatterfact, preset, NULL)))
|
|
break;
|
|
}
|
|
|
|
gst_plugin_feature_list_free (formatters);
|
|
|
|
beach:
|
|
return formatter;
|
|
}
|
|
|
|
static inline GstElement *
|
|
_get_muxer (GstEncodeBin * ebin)
|
|
{
|
|
GList *muxers, *formatters, *tmpmux;
|
|
GstElement *muxer = NULL;
|
|
GstElementFactory *muxerfact = NULL;
|
|
const GList *tmp;
|
|
const GstCaps *format;
|
|
const gchar *preset;
|
|
|
|
format = gst_encoding_profile_get_format (ebin->profile);
|
|
preset = gst_encoding_profile_get_preset (ebin->profile);
|
|
|
|
GST_DEBUG ("Getting list of muxers for format %" GST_PTR_FORMAT, format);
|
|
|
|
muxers =
|
|
gst_element_factory_list_filter (ebin->muxers, format, GST_PAD_SRC, TRUE);
|
|
|
|
formatters =
|
|
gst_element_factory_list_filter (ebin->formatters, format, GST_PAD_SRC,
|
|
TRUE);
|
|
|
|
muxers = g_list_concat (muxers, formatters);
|
|
|
|
if (muxers == NULL)
|
|
goto beach;
|
|
|
|
/* FIXME : signal the user if he wants this */
|
|
for (tmpmux = muxers; tmpmux; tmpmux = tmpmux->next) {
|
|
gboolean cansinkstreams = TRUE;
|
|
const GList *profiles =
|
|
gst_encoding_container_profile_get_profiles
|
|
(GST_ENCODING_CONTAINER_PROFILE (ebin->profile));
|
|
|
|
muxerfact = (GstElementFactory *) tmpmux->data;
|
|
|
|
GST_DEBUG ("Trying muxer %s", GST_OBJECT_NAME (muxerfact));
|
|
|
|
/* See if the muxer can sink all of our stream profile caps */
|
|
for (tmp = profiles; tmp; tmp = tmp->next) {
|
|
GstEncodingProfile *sprof = (GstEncodingProfile *) tmp->data;
|
|
|
|
if (!_factory_can_sink_caps (muxerfact,
|
|
gst_encoding_profile_get_format (sprof))) {
|
|
GST_DEBUG ("Skipping muxer because it can't sink caps %" GST_PTR_FORMAT,
|
|
gst_encoding_profile_get_format (sprof));
|
|
cansinkstreams = FALSE;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Only use a muxer than can use all streams and than can accept the
|
|
* preset (which may be present or not) */
|
|
if (cansinkstreams && (muxer =
|
|
_create_element_and_set_preset (muxerfact, preset, "muxer")))
|
|
break;
|
|
}
|
|
|
|
gst_plugin_feature_list_free (muxers);
|
|
|
|
beach:
|
|
return muxer;
|
|
}
|
|
|
|
static gboolean
|
|
create_elements_and_pads (GstEncodeBin * ebin)
|
|
{
|
|
gboolean ret = TRUE;
|
|
GstElement *muxer = NULL;
|
|
GstPad *muxerpad;
|
|
const GList *tmp, *profiles;
|
|
GstEncodingProfile *sprof;
|
|
|
|
GST_DEBUG ("Current profile : %s",
|
|
gst_encoding_profile_get_name (ebin->profile));
|
|
|
|
if (GST_IS_ENCODING_CONTAINER_PROFILE (ebin->profile)) {
|
|
/* 1. Get the compatible muxer */
|
|
muxer = _get_muxer (ebin);
|
|
if (G_UNLIKELY (muxer == NULL))
|
|
goto no_muxer;
|
|
|
|
/* Record the muxer */
|
|
ebin->muxer = muxer;
|
|
gst_bin_add ((GstBin *) ebin, muxer);
|
|
|
|
/* 2. Ghost the muxer source pad */
|
|
|
|
/* FIXME : We should figure out if it's a static/request/dyamic pad,
|
|
* but for the time being let's assume it's a static pad :) */
|
|
muxerpad = gst_element_get_static_pad (muxer, "src");
|
|
if (G_UNLIKELY (muxerpad == NULL))
|
|
goto no_muxer_pad;
|
|
|
|
if (!gst_ghost_pad_set_target (GST_GHOST_PAD (ebin->srcpad), muxerpad))
|
|
goto no_muxer_ghost_pad;
|
|
|
|
gst_object_unref (muxerpad);
|
|
/* 3. Activate fixed presence streams */
|
|
profiles =
|
|
gst_encoding_container_profile_get_profiles
|
|
(GST_ENCODING_CONTAINER_PROFILE (ebin->profile));
|
|
for (tmp = profiles; tmp; tmp = tmp->next) {
|
|
sprof = (GstEncodingProfile *) tmp->data;
|
|
|
|
GST_DEBUG ("Trying stream profile with presence %d",
|
|
gst_encoding_profile_get_presence (sprof));
|
|
|
|
if (gst_encoding_profile_get_presence (sprof) != 0) {
|
|
if (G_UNLIKELY (_create_stream_group (ebin, sprof, NULL, NULL) == NULL))
|
|
goto stream_error;
|
|
}
|
|
}
|
|
} else {
|
|
if (G_UNLIKELY (_create_stream_group (ebin, ebin->profile, NULL,
|
|
NULL) == NULL))
|
|
goto stream_error;
|
|
}
|
|
|
|
return ret;
|
|
|
|
no_muxer:
|
|
{
|
|
GST_WARNING ("No available muxer for %" GST_PTR_FORMAT,
|
|
gst_encoding_profile_get_format (ebin->profile));
|
|
/* missing plugin support */
|
|
gst_element_post_message (GST_ELEMENT_CAST (ebin),
|
|
gst_missing_encoder_message_new (GST_ELEMENT_CAST (ebin),
|
|
gst_encoding_profile_get_format (ebin->profile)));
|
|
GST_ELEMENT_ERROR (ebin, CORE, MISSING_PLUGIN, (NULL),
|
|
("No available muxer for format %" GST_PTR_FORMAT,
|
|
gst_encoding_profile_get_format (ebin->profile)));
|
|
return FALSE;
|
|
}
|
|
|
|
no_muxer_pad:
|
|
{
|
|
GST_WARNING ("Can't get source pad from muxer (%s)",
|
|
GST_ELEMENT_NAME (muxer));
|
|
gst_bin_remove (GST_BIN (ebin), muxer);
|
|
return FALSE;
|
|
}
|
|
|
|
no_muxer_ghost_pad:
|
|
{
|
|
GST_WARNING ("Couldn't set %s:%s as source ghostpad target",
|
|
GST_DEBUG_PAD_NAME (muxerpad));
|
|
gst_bin_remove (GST_BIN (ebin), muxer);
|
|
gst_object_unref (muxerpad);
|
|
return FALSE;
|
|
}
|
|
|
|
stream_error:
|
|
{
|
|
GST_WARNING ("Could not create Streams");
|
|
if (muxer)
|
|
gst_bin_remove (GST_BIN (ebin), muxer);
|
|
ebin->muxer = NULL;
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static void
|
|
release_pads (const GValue * item, GstElement * elt)
|
|
{
|
|
GstPad *pad = g_value_get_object (item);
|
|
GstPad *peer = NULL;
|
|
|
|
GST_DEBUG_OBJECT (elt, "Releasing pad %s:%s", GST_DEBUG_PAD_NAME (pad));
|
|
|
|
/* Unlink from its peer pad */
|
|
if ((peer = gst_pad_get_peer (pad))) {
|
|
if (GST_PAD_DIRECTION (peer) == GST_PAD_SRC)
|
|
gst_pad_unlink (peer, pad);
|
|
else
|
|
gst_pad_unlink (pad, peer);
|
|
gst_object_unref (peer);
|
|
}
|
|
|
|
/* Release it from the object */
|
|
gst_element_release_request_pad (elt, pad);
|
|
}
|
|
|
|
static void inline
|
|
stream_group_free (GstEncodeBin * ebin, StreamGroup * sgroup)
|
|
{
|
|
GList *tmp;
|
|
GstPad *tmppad;
|
|
GstPad *pad;
|
|
|
|
GST_DEBUG_OBJECT (ebin, "Freeing StreamGroup %p", sgroup);
|
|
|
|
if (ebin->muxer) {
|
|
/* outqueue - Muxer */
|
|
tmppad = gst_element_get_static_pad (sgroup->outqueue, "src");
|
|
pad = gst_pad_get_peer (tmppad);
|
|
|
|
/* Remove muxer request sink pad */
|
|
gst_pad_unlink (tmppad, pad);
|
|
gst_element_release_request_pad (ebin->muxer, pad);
|
|
gst_object_unref (tmppad);
|
|
gst_object_unref (pad);
|
|
}
|
|
if (sgroup->outqueue)
|
|
gst_element_set_state (sgroup->outqueue, GST_STATE_NULL);
|
|
|
|
if (sgroup->formatter) {
|
|
/* capsfilter - formatter - outqueue */
|
|
gst_element_set_state (sgroup->formatter, GST_STATE_NULL);
|
|
gst_element_set_state (sgroup->outfilter, GST_STATE_NULL);
|
|
gst_element_unlink (sgroup->formatter, sgroup->outqueue);
|
|
gst_element_unlink (sgroup->outfilter, sgroup->formatter);
|
|
} else {
|
|
/* Capsfilter - outqueue */
|
|
gst_element_set_state (sgroup->outfilter, GST_STATE_NULL);
|
|
gst_element_unlink (sgroup->outfilter, sgroup->outqueue);
|
|
}
|
|
gst_element_set_state (sgroup->outqueue, GST_STATE_NULL);
|
|
gst_bin_remove (GST_BIN (ebin), sgroup->outqueue);
|
|
|
|
/* streamcombiner - parser - capsfilter */
|
|
if (sgroup->parser) {
|
|
gst_element_set_state (sgroup->parser, GST_STATE_NULL);
|
|
gst_element_unlink (sgroup->parser, sgroup->outfilter);
|
|
gst_element_unlink (sgroup->combiner, sgroup->parser);
|
|
gst_bin_remove ((GstBin *) ebin, sgroup->parser);
|
|
}
|
|
|
|
/* Sink Ghostpad */
|
|
if (sgroup->ghostpad)
|
|
gst_element_remove_pad (GST_ELEMENT_CAST (ebin), sgroup->ghostpad);
|
|
|
|
if (sgroup->inqueue)
|
|
gst_element_set_state (sgroup->inqueue, GST_STATE_NULL);
|
|
|
|
if (sgroup->encoder)
|
|
gst_element_set_state (sgroup->encoder, GST_STATE_NULL);
|
|
if (sgroup->outfilter)
|
|
gst_element_set_state (sgroup->outfilter, GST_STATE_NULL);
|
|
if (sgroup->smartencoder)
|
|
gst_element_set_state (sgroup->smartencoder, GST_STATE_NULL);
|
|
|
|
if (sgroup->capsfilter) {
|
|
gst_element_set_state (sgroup->capsfilter, GST_STATE_NULL);
|
|
gst_element_unlink (sgroup->capsfilter, sgroup->encoder);
|
|
gst_bin_remove ((GstBin *) ebin, sgroup->capsfilter);
|
|
}
|
|
|
|
for (tmp = sgroup->converters; tmp; tmp = tmp->next) {
|
|
GstElement *elt = (GstElement *) tmp->data;
|
|
|
|
gst_element_set_state (elt, GST_STATE_NULL);
|
|
gst_bin_remove ((GstBin *) ebin, elt);
|
|
}
|
|
if (sgroup->converters)
|
|
g_list_free (sgroup->converters);
|
|
|
|
if (sgroup->combiner) {
|
|
GstIterator *it = gst_element_iterate_sink_pads (sgroup->combiner);
|
|
GstIteratorResult itret = GST_ITERATOR_OK;
|
|
|
|
while (itret == GST_ITERATOR_OK || itret == GST_ITERATOR_RESYNC) {
|
|
itret =
|
|
gst_iterator_foreach (it, (GstIteratorForeachFunction) release_pads,
|
|
sgroup->combiner);
|
|
gst_iterator_resync (it);
|
|
}
|
|
gst_iterator_free (it);
|
|
gst_element_set_state (sgroup->combiner, GST_STATE_NULL);
|
|
gst_bin_remove ((GstBin *) ebin, sgroup->combiner);
|
|
}
|
|
|
|
if (sgroup->splitter) {
|
|
GstIterator *it = gst_element_iterate_src_pads (sgroup->splitter);
|
|
GstIteratorResult itret = GST_ITERATOR_OK;
|
|
while (itret == GST_ITERATOR_OK || itret == GST_ITERATOR_RESYNC) {
|
|
itret =
|
|
gst_iterator_foreach (it, (GstIteratorForeachFunction) release_pads,
|
|
sgroup->splitter);
|
|
gst_iterator_resync (it);
|
|
}
|
|
gst_iterator_free (it);
|
|
|
|
gst_element_set_state (sgroup->splitter, GST_STATE_NULL);
|
|
gst_bin_remove ((GstBin *) ebin, sgroup->splitter);
|
|
}
|
|
|
|
if (sgroup->inqueue)
|
|
gst_bin_remove ((GstBin *) ebin, sgroup->inqueue);
|
|
|
|
if (sgroup->encoder)
|
|
gst_bin_remove ((GstBin *) ebin, sgroup->encoder);
|
|
|
|
if (sgroup->smartencoder)
|
|
gst_bin_remove ((GstBin *) ebin, sgroup->smartencoder);
|
|
|
|
if (sgroup->outfilter)
|
|
gst_bin_remove ((GstBin *) ebin, sgroup->outfilter);
|
|
|
|
g_slice_free (StreamGroup, sgroup);
|
|
}
|
|
|
|
static void
|
|
stream_group_remove (GstEncodeBin * ebin, StreamGroup * sgroup)
|
|
{
|
|
ebin->streams = g_list_remove (ebin->streams, sgroup);
|
|
|
|
stream_group_free (ebin, sgroup);
|
|
}
|
|
|
|
static void
|
|
gst_encode_bin_tear_down_profile (GstEncodeBin * ebin)
|
|
{
|
|
if (G_UNLIKELY (ebin->profile == NULL))
|
|
return;
|
|
|
|
GST_DEBUG ("Tearing down profile %s",
|
|
gst_encoding_profile_get_name (ebin->profile));
|
|
|
|
while (ebin->streams)
|
|
stream_group_remove (ebin, (StreamGroup *) ebin->streams->data);
|
|
|
|
/* Set ghostpad target to NULL */
|
|
gst_ghost_pad_set_target (GST_GHOST_PAD (ebin->srcpad), NULL);
|
|
|
|
/* Remove muxer if present */
|
|
if (ebin->muxer) {
|
|
gst_element_set_state (ebin->muxer, GST_STATE_NULL);
|
|
gst_bin_remove (GST_BIN (ebin), ebin->muxer);
|
|
ebin->muxer = NULL;
|
|
}
|
|
|
|
/* free/clear profile */
|
|
gst_encoding_profile_unref (ebin->profile);
|
|
ebin->profile = NULL;
|
|
}
|
|
|
|
static gboolean
|
|
gst_encode_bin_setup_profile (GstEncodeBin * ebin, GstEncodingProfile * profile)
|
|
{
|
|
gboolean res;
|
|
|
|
g_return_val_if_fail (ebin->profile == NULL, FALSE);
|
|
|
|
GST_DEBUG ("Setting up profile %s (type:%s)",
|
|
gst_encoding_profile_get_name (profile),
|
|
gst_encoding_profile_get_type_nick (profile));
|
|
|
|
ebin->profile = profile;
|
|
gst_mini_object_ref ((GstMiniObject *) ebin->profile);
|
|
|
|
/* Create elements */
|
|
res = create_elements_and_pads (ebin);
|
|
if (res == FALSE)
|
|
gst_encode_bin_tear_down_profile (ebin);
|
|
|
|
return res;
|
|
}
|
|
|
|
static gboolean
|
|
gst_encode_bin_set_profile (GstEncodeBin * ebin, GstEncodingProfile * profile)
|
|
{
|
|
g_return_val_if_fail (GST_IS_ENCODING_PROFILE (profile), FALSE);
|
|
|
|
GST_DEBUG_OBJECT (ebin, "profile : %s",
|
|
gst_encoding_profile_get_name (profile));
|
|
|
|
if (G_UNLIKELY (ebin->active)) {
|
|
GST_WARNING_OBJECT (ebin, "Element already active, can't change profile");
|
|
return FALSE;
|
|
}
|
|
|
|
/* If we're not active, we can deactivate the previous profile */
|
|
if (ebin->profile) {
|
|
gst_encode_bin_tear_down_profile (ebin);
|
|
}
|
|
|
|
return gst_encode_bin_setup_profile (ebin, profile);
|
|
}
|
|
|
|
static inline gboolean
|
|
gst_encode_bin_activate (GstEncodeBin * ebin)
|
|
{
|
|
ebin->active = ebin->profile != NULL;
|
|
return ebin->active;
|
|
}
|
|
|
|
static void
|
|
gst_encode_bin_deactivate (GstEncodeBin * ebin)
|
|
{
|
|
ebin->active = FALSE;
|
|
}
|
|
|
|
static GstStateChangeReturn
|
|
gst_encode_bin_change_state (GstElement * element, GstStateChange transition)
|
|
{
|
|
GstStateChangeReturn ret;
|
|
GstEncodeBin *ebin = (GstEncodeBin *) element;
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
|
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
|
|
if (!gst_encode_bin_activate (ebin)) {
|
|
ret = GST_STATE_CHANGE_FAILURE;
|
|
goto beach;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ret =
|
|
GST_ELEMENT_CLASS (gst_encode_bin_parent_class)->change_state (element,
|
|
transition);
|
|
if (ret == GST_STATE_CHANGE_FAILURE)
|
|
goto beach;
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
|
gst_encode_bin_deactivate (ebin);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
beach:
|
|
return ret;
|
|
}
|
|
|
|
|
|
static gboolean
|
|
plugin_init (GstPlugin * plugin)
|
|
{
|
|
gboolean res;
|
|
|
|
GST_DEBUG_CATEGORY_INIT (gst_encode_bin_debug, "encodebin", 0, "encoder bin");
|
|
|
|
#ifdef ENABLE_NLS
|
|
GST_DEBUG ("binding text domain %s to locale dir %s", GETTEXT_PACKAGE,
|
|
LOCALEDIR);
|
|
bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
|
|
bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
|
|
#endif /* ENABLE_NLS */
|
|
|
|
|
|
res = gst_element_register (plugin, "encodebin", GST_RANK_NONE,
|
|
GST_TYPE_ENCODE_BIN);
|
|
|
|
return res;
|
|
}
|
|
|
|
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
|
GST_VERSION_MINOR,
|
|
"encoding",
|
|
"various encoding-related elements", plugin_init, VERSION, GST_LICENSE,
|
|
GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
|