mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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Some modifications to make the demuxers work, plus moving typefinding over from separate plugin to the demuxers thems...
Original commit message from CVS: Some modifications to make the demuxers work, plus moving typefinding over from separate plugin to the demuxers themselves
This commit is contained in:
Ronald S. Bultje
parent
fe266412d9
commit
52080fb443
1 changed files with 308 additions and 185 deletions
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@ -17,8 +17,11 @@
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* Boston, MA 02111-1307, USA.
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*/
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#include <string.h>
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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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#ifdef HAVE_FFMPEG_UNINSTALLED
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#include <avformat.h>
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#include <avi.h>
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@ -29,12 +32,7 @@
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#include <gst/gst.h>
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extern GstCaps* gst_ffmpegcodec_codec_context_to_caps (AVCodecContext *context, int codec_id);
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typedef enum {
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STATE_OPEN,
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STATE_DEMUX,
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} DemuxState;
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#include "gstffmpegcodecmap.h"
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typedef struct _GstFFMpegDemux GstFFMpegDemux;
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@ -45,17 +43,30 @@ struct _GstFFMpegDemux {
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GstPad *sinkpad;
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AVFormatContext *context;
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DemuxState state;
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gboolean opened;
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GstPad *srcpads[MAX_STREAMS];
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gint videopads, audiopads;
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};
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typedef struct _GstFFMpegDemuxClassParams {
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AVInputFormat *in_plugin;
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GstPadTemplate *sinktempl;
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GstPadTemplate *videosrctempl;
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GstPadTemplate *audiosrctempl;
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GstPluginFeature *typefind_feature;
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} GstFFMpegDemuxClassParams;
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typedef struct _GstFFMpegDemuxClass GstFFMpegDemuxClass;
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struct _GstFFMpegDemuxClass {
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GstElementClass parent_class;
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AVInputFormat *in_plugin;
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GstPadTemplate *sinktempl;
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GstPadTemplate *videosrctempl;
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GstPadTemplate *audiosrctempl;
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GstPluginFeature *typefind_feature;
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};
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#define GST_TYPE_FFMPEGDEC \
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@ -79,42 +90,17 @@ enum {
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/* FILL ME */
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};
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/* This factory is much simpler, and defines the source pad. */
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GST_PAD_TEMPLATE_FACTORY (gst_ffmpegdemux_sink_factory,
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"sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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NULL
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)
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/* This factory is much simpler, and defines the source pad. */
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GST_PAD_TEMPLATE_FACTORY (gst_ffmpegdemux_audio_src_factory,
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"audio_%02d",
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GST_PAD_SRC,
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GST_PAD_SOMETIMES,
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NULL
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)
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/* This factory is much simpler, and defines the source pad. */
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GST_PAD_TEMPLATE_FACTORY (gst_ffmpegdemux_video_src_factory,
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"video_%02d",
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GST_PAD_SRC,
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GST_PAD_SOMETIMES,
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NULL
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)
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static GHashTable *global_plugins;
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static GHashTable *global_plugins, *typefind;
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/* A number of functon prototypes are given so we can refer to them later. */
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static void gst_ffmpegdemux_class_init (GstFFMpegDemuxClass *klass);
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static void gst_ffmpegdemux_init (GstFFMpegDemux *ffmpegdemux);
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static void gst_ffmpegdemux_dispose (GObject *object);
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static void gst_ffmpegdemux_loop (GstElement *element);
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static void gst_ffmpegdemux_set_property (GObject *object, guint prop_id, const GValue *value,
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GParamSpec *pspec);
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static void gst_ffmpegdemux_get_property (GObject *object, guint prop_id, GValue *value,
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GParamSpec *pspec);
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static GstElementStateReturn
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gst_ffmpegdemux_change_state (GstElement *element);
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static GstElementClass *parent_class = NULL;
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@ -125,31 +111,86 @@ gst_ffmpegdemux_class_init (GstFFMpegDemuxClass *klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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GstFFMpegDemuxClassParams *params;
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gobject_class = (GObjectClass*)klass;
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gstelement_class = (GstElementClass*)klass;
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parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
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klass->in_plugin = g_hash_table_lookup (global_plugins,
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GINT_TO_POINTER (G_OBJECT_CLASS_TYPE (gobject_class)));
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params = g_hash_table_lookup (global_plugins,
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GINT_TO_POINTER (G_OBJECT_CLASS_TYPE (gobject_class)));
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gobject_class->set_property = gst_ffmpegdemux_set_property;
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gobject_class->get_property = gst_ffmpegdemux_get_property;
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klass->in_plugin = params->in_plugin;
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klass->typefind_feature = params->typefind_feature;
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klass->videosrctempl = params->videosrctempl;
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klass->audiosrctempl = params->audiosrctempl;
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klass->sinktempl = params->sinktempl;
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gstelement_class->change_state = gst_ffmpegdemux_change_state;
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gobject_class->dispose = gst_ffmpegdemux_dispose;
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}
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static void
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gst_ffmpegdemux_init(GstFFMpegDemux *ffmpegdemux)
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{
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//GstFFMpegDemuxClass *oclass = (GstFFMpegDemuxClass*)(G_OBJECT_GET_CLASS (ffmpegdemux));
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GstFFMpegDemuxClass *oclass = (GstFFMpegDemuxClass*)(G_OBJECT_GET_CLASS (ffmpegdemux));
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ffmpegdemux->sinkpad = gst_pad_new_from_template (
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GST_PAD_TEMPLATE_GET (gst_ffmpegdemux_sink_factory), "sink");
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ffmpegdemux->sinkpad = gst_pad_new_from_template (oclass->sinktempl,
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"sink");
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gst_element_add_pad (GST_ELEMENT (ffmpegdemux),
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ffmpegdemux->sinkpad);
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gst_element_set_loop_function (GST_ELEMENT (ffmpegdemux),
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gst_ffmpegdemux_loop);
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gst_element_add_pad (GST_ELEMENT (ffmpegdemux), ffmpegdemux->sinkpad);
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gst_element_set_loop_function (GST_ELEMENT (ffmpegdemux), gst_ffmpegdemux_loop);
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ffmpegdemux->opened = FALSE;
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ffmpegdemux->state = STATE_OPEN;
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ffmpegdemux->videopads = 0;
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ffmpegdemux->audiopads = 0;
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}
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static void
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gst_ffmpegdemux_dispose (GObject *object)
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{
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GstFFMpegDemux *ffmpegdemux = (GstFFMpegDemux *) object;
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if (ffmpegdemux->opened) {
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av_close_input_file (ffmpegdemux->context);
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ffmpegdemux->opened = FALSE;
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}
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}
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static GstCaps*
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gst_ffmpegdemux_typefind (GstBuffer *buffer,
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gpointer priv)
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{
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GstFFMpegDemuxClassParams *params;
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AVInputFormat *in_plugin;
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gint res = 0;
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gint required = AVPROBE_SCORE_MAX * 0.8; /* 80% certainty enough? */
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params = g_hash_table_lookup (typefind, priv);
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in_plugin = params->in_plugin;
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if (in_plugin->read_probe) {
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AVProbeData probe_data;
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probe_data.filename = "";
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probe_data.buf = GST_BUFFER_DATA (buffer);
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probe_data.buf_size = GST_BUFFER_SIZE (buffer);
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res = in_plugin->read_probe (&probe_data);
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if (res >= required) {
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GstCaps *caps;
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caps = GST_PAD_TEMPLATE_CAPS (params->sinktempl);
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/* make sure we still hold a refcount to this caps */
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gst_caps_ref (caps);
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return caps;
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}
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}
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return NULL;
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}
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static void
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@ -157,147 +198,164 @@ gst_ffmpegdemux_loop (GstElement *element)
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{
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GstFFMpegDemux *ffmpegdemux = (GstFFMpegDemux *)(element);
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GstFFMpegDemuxClass *oclass = (GstFFMpegDemuxClass*)(G_OBJECT_GET_CLASS (ffmpegdemux));
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gint res = 0;
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switch (ffmpegdemux->state) {
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case STATE_OPEN:
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{
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res = av_open_input_file (&ffmpegdemux->context,
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g_strdup_printf ("gstreamer://%p", ffmpegdemux->sinkpad),
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oclass->in_plugin,
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0,
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NULL);
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gint res;
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AVPacket pkt;
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AVFormatContext *ct;
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AVStream *st;
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GstPad *pad;
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ffmpegdemux->state = STATE_DEMUX;
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break;
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/* open file if we didn't so already */
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if (!ffmpegdemux->opened) {
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res = av_open_input_file (&ffmpegdemux->context,
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g_strdup_printf ("gstreamer://i/%p",
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ffmpegdemux->sinkpad),
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oclass->in_plugin, 0, NULL);
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if (res < 0) {
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gst_element_error (GST_ELEMENT (ffmpegdemux),
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"Failed to open demuxer/file context");
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return;
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}
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case STATE_DEMUX:
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{
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gint res;
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AVPacket pkt;
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AVFormatContext *ct = ffmpegdemux->context;
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AVStream *st;
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GstPad *pad;
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res = av_read_packet(ct, &pkt);
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if (res < 0) {
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if (url_feof (&ct->pb)) {
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gint i;
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for (i = 0; i < ct->nb_streams; i++) {
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GstPad *pad;
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ffmpegdemux->opened = TRUE;
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}
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pad = ffmpegdemux->srcpads[i];
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/* shortcut to context */
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ct = ffmpegdemux->context;
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if (GST_PAD_IS_USABLE (pad)) {
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gst_pad_push (pad, GST_BUFFER (gst_event_new (GST_EVENT_EOS)));
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}
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}
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gst_element_set_eos (element);
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}
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return;
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/* read a package */
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res = av_read_packet (ct, &pkt);
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if (res < 0) {
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if (url_feof (&ct->pb)) {
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int i;
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/* we're at the end of file - send an EOS to
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* each stream that we opened so far */
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for (i = 0; i < ct->nb_streams; i++) {
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GstPad *pad;
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GstEvent *event = gst_event_new (GST_EVENT_EOS);
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pad = ffmpegdemux->srcpads[i];
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if (GST_PAD_IS_USABLE (pad)) {
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gst_data_ref (GST_DATA (event));
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gst_pad_push (pad, GST_BUFFER (event));
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}
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gst_data_unref (GST_DATA (event));
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}
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st = ct->streams[pkt.stream_index];
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if (st->codec_info_state == 0) {
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gchar *templname = NULL;
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st->codec_info_state = 1;
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if (st->codec.codec_type == CODEC_TYPE_VIDEO) {
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templname = "video_%02d";
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}
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else if (st->codec.codec_type == CODEC_TYPE_AUDIO) {
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templname = "audio_%02d";
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}
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if (templname != NULL) {
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gchar *padname;
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GstCaps *caps;
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GstPadTemplate *templ;
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caps = gst_ffmpegcodec_codec_context_to_caps (&st->codec, st->codec.codec_id);
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templ = gst_pad_template_new (templname,
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GST_PAD_SRC,
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GST_PAD_SOMETIMES,
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caps, NULL);
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padname = g_strdup_printf (templname, pkt.stream_index);
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pad = gst_pad_new_from_template (templ, padname);
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ffmpegdemux->srcpads[pkt.stream_index] = pad;
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gst_element_add_pad (GST_ELEMENT (ffmpegdemux), pad);
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}
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else {
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g_warning ("unknown pad type %d", st->codec.codec_type);
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return;
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}
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}
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else {
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pad = ffmpegdemux->srcpads[pkt.stream_index];
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}
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if (GST_PAD_IS_USABLE (pad)) {
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GstBuffer *outbuf;
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outbuf = gst_buffer_new ();
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GST_BUFFER_DATA (outbuf) = pkt.data;
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GST_BUFFER_SIZE (outbuf) = pkt.size;
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if (pkt.pts != AV_NOPTS_VALUE && ct->pts_den) {
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GST_BUFFER_TIMESTAMP (outbuf) = pkt.pts * GST_SECOND * ct->pts_num / ct->pts_den;
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}
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else {
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GST_BUFFER_TIMESTAMP (outbuf) = -1;
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}
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gst_pad_push (pad, outbuf);
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}
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break;
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}
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default:
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gst_element_set_eos (element);
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break;
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/* FIXME: should we go into
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* should we close the context here?
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* either way, a new media stream needs an
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* event too */
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}
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return;
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}
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/* shortcut to stream */
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st = ct->streams[pkt.stream_index];
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/* create the pad/stream if we didn't do so already */
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if (st->codec_info_state == 0) {
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GstPadTemplate *templ = NULL;
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GstCaps *caps;
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gchar *padname;
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gint num;
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/* mark as handled */
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st->codec_info_state = 1;
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/* find template */
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switch (st->codec.codec_type) {
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case CODEC_TYPE_VIDEO:
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templ = oclass->videosrctempl;
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num = ffmpegdemux->videopads++;
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break;
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case CODEC_TYPE_AUDIO:
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templ = oclass->audiosrctempl;
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num = ffmpegdemux->audiopads++;
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break;
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default:
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g_warning ("Unknown pad type %d",
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st->codec.codec_type);
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return;
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}
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/* create new pad for this stream */
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padname = g_strdup_printf (GST_PAD_TEMPLATE_NAME_TEMPLATE(templ),
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num);
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pad = gst_pad_new_from_template (templ, padname);
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g_free (padname);
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/* FIXME: convert() and query() functions for pad */
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/* store pad internally */
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ffmpegdemux->srcpads[pkt.stream_index] = pad;
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gst_element_add_pad (GST_ELEMENT (ffmpegdemux), pad);
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/* get caps that belongs to this stream */
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caps = gst_ffmpeg_codecid_to_caps (st->codec.codec_id,
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&st->codec);
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if (gst_pad_try_set_caps (pad, caps) <= 0) {
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GST_DEBUG (GST_CAT_PLUGIN_ERRORS,
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"Failed to set caps from ffdemuxer on next element");
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/* we continue here, in the next pad-is-usable check,
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* we'll return nonetheless */
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}
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}
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/* shortcut to pad belonging to this stream */
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pad = ffmpegdemux->srcpads[pkt.stream_index];
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/* and handle the data by pushing it forward... */
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if (GST_PAD_IS_USABLE (pad)) {
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GstBuffer *outbuf;
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outbuf = gst_buffer_new_and_alloc (pkt.size);
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memcpy (GST_BUFFER_DATA (outbuf), pkt.data, pkt.size);
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GST_BUFFER_SIZE (outbuf) = pkt.size;
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if (pkt.pts != AV_NOPTS_VALUE && ct->pts_den) {
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GST_BUFFER_TIMESTAMP (outbuf) = pkt.pts * GST_SECOND *
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ct->pts_num / ct->pts_den;
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}
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if (pkt.flags & PKT_FLAG_KEY) {
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GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_KEY_UNIT);
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}
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gst_pad_push (pad, outbuf);
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pkt.destruct (&pkt);
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}
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}
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static void
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gst_ffmpegdemux_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
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static GstElementStateReturn
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gst_ffmpegdemux_change_state (GstElement *element)
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{
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GstFFMpegDemux *ffmpegdemux;
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GstFFMpegDemux *ffmpegdemux = (GstFFMpegDemux *)(element);
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gint transition = GST_STATE_TRANSITION (element);
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/* Get a pointer of the right type. */
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ffmpegdemux = (GstFFMpegDemux *)(object);
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/* Check the argument id to see which argument we're setting. */
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switch (prop_id) {
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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switch (transition) {
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case GST_STATE_PAUSED_TO_READY:
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if (ffmpegdemux->opened) {
|
||||
av_close_input_file (ffmpegdemux->context);
|
||||
ffmpegdemux->opened = FALSE;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* The set function is simply the inverse of the get fuction. */
|
||||
static void
|
||||
gst_ffmpegdemux_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
|
||||
{
|
||||
GstFFMpegDemux *ffmpegdemux;
|
||||
if (GST_ELEMENT_CLASS (parent_class)->change_state)
|
||||
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
|
||||
|
||||
/* It's not null if we got it, but it might not be ours */
|
||||
ffmpegdemux = (GstFFMpegDemux *)(object);
|
||||
|
||||
switch (prop_id) {
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
}
|
||||
return GST_STATE_SUCCESS;
|
||||
}
|
||||
|
||||
gboolean
|
||||
gst_ffmpegdemux_register (GstPlugin *plugin)
|
||||
{
|
||||
GstElementFactory *factory;
|
||||
GstTypeFactory *type_factory;
|
||||
GstTypeDefinition *type_definition;
|
||||
GTypeInfo typeinfo = {
|
||||
sizeof(GstFFMpegDemuxClass),
|
||||
NULL,
|
||||
|
|
@ -312,14 +370,47 @@ gst_ffmpegdemux_register (GstPlugin *plugin)
|
|||
GType type;
|
||||
GstElementDetails *details;
|
||||
AVInputFormat *in_plugin;
|
||||
GstFFMpegDemuxClassParams *params;
|
||||
AVCodec *in_codec;
|
||||
|
||||
in_plugin = first_iformat;
|
||||
|
||||
global_plugins = g_hash_table_new (NULL, NULL);
|
||||
typefind = g_hash_table_new (NULL, NULL);
|
||||
|
||||
while (in_plugin) {
|
||||
gchar *type_name;
|
||||
gchar *p;
|
||||
GstCaps *sinkcaps, *audiosrccaps, *videosrccaps;
|
||||
|
||||
/* Try to find the caps that belongs here */
|
||||
sinkcaps = gst_ffmpeg_formatid_to_caps (in_plugin->name);
|
||||
if (!sinkcaps) {
|
||||
goto next;
|
||||
}
|
||||
/* This is a bit ugly, but we just take all formats
|
||||
* for the pad template. We'll get an exact match
|
||||
* when we open the stream */
|
||||
audiosrccaps = NULL;
|
||||
videosrccaps = NULL;
|
||||
for (in_codec = first_avcodec; in_codec != NULL;
|
||||
in_codec = in_codec->next) {
|
||||
GstCaps *temp = gst_ffmpeg_codecid_to_caps (in_codec->id, NULL);
|
||||
if (!temp) {
|
||||
continue;
|
||||
}
|
||||
switch (in_codec->type) {
|
||||
case CODEC_TYPE_VIDEO:
|
||||
videosrccaps = gst_caps_append (videosrccaps, temp);
|
||||
break;
|
||||
case CODEC_TYPE_AUDIO:
|
||||
audiosrccaps = gst_caps_append (audiosrccaps, temp);
|
||||
break;
|
||||
default:
|
||||
gst_caps_unref (temp);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* construct the type */
|
||||
type_name = g_strdup_printf("ffdemux_%s", in_plugin->name);
|
||||
|
|
@ -337,39 +428,71 @@ gst_ffmpegdemux_register (GstPlugin *plugin)
|
|||
goto next;
|
||||
}
|
||||
|
||||
/* create the gtk type now */
|
||||
/* create the type now */
|
||||
type = g_type_register_static(GST_TYPE_ELEMENT, type_name , &typeinfo, 0);
|
||||
|
||||
/* construct the element details struct */
|
||||
details = g_new0 (GstElementDetails,1);
|
||||
details->longname = g_strdup (in_plugin->name);
|
||||
details->klass = "Codec/Demuxer/FFMpeg";
|
||||
details->license = "LGPL";
|
||||
details->description = g_strdup (in_plugin->name);
|
||||
details->version = g_strdup("1.0.0");
|
||||
details->author = g_strdup("The FFMPEG crew, GStreamer plugin by Wim Taymans <wim.taymans@chello.be>");
|
||||
details->copyright = g_strdup("(c) 2002");
|
||||
|
||||
g_hash_table_insert (global_plugins,
|
||||
GINT_TO_POINTER (type),
|
||||
(gpointer) in_plugin);
|
||||
details = g_new0 (GstElementDetails, 1);
|
||||
details->longname = g_strdup (in_plugin->long_name);
|
||||
details->klass = g_strdup ("Codec/Demuxer");
|
||||
details->license = g_strdup ("LGPL");
|
||||
details->description = g_strdup_printf ("FFMPEG %s demuxer",
|
||||
in_plugin->name);
|
||||
details->version = g_strdup (VERSION);
|
||||
details->author = g_strdup ("The FFMPEG crew\n"
|
||||
"Wim Taymans <wim.taymans@chello.be>\n"
|
||||
"Ronald Bultje <rbultje@ronald.bitfreak.net>");
|
||||
details->copyright = g_strdup ("(c) 2002-2003");
|
||||
|
||||
/* register the plugin with gstreamer */
|
||||
factory = gst_element_factory_new(type_name,type,details);
|
||||
g_return_val_if_fail(factory != NULL, FALSE);
|
||||
|
||||
gst_element_factory_set_rank (factory, GST_ELEMENT_RANK_NONE);
|
||||
/* typefind info */
|
||||
type_definition = g_new0 (GstTypeDefinition, 1);
|
||||
type_definition->name = g_strdup_printf ("fftype_%s",
|
||||
in_plugin->name);
|
||||
type_definition->mime = g_strdup (gst_caps_get_mime (sinkcaps));
|
||||
type_definition->exts = g_strdup (in_plugin->extensions);
|
||||
type_definition->typefindfunc = gst_ffmpegdemux_typefind;
|
||||
|
||||
gst_element_factory_add_pad_template (factory,
|
||||
GST_PAD_TEMPLATE_GET (gst_ffmpegdemux_sink_factory));
|
||||
type_factory = gst_type_factory_new (type_definition);
|
||||
|
||||
gst_element_factory_add_pad_template (factory,
|
||||
GST_PAD_TEMPLATE_GET (gst_ffmpegdemux_video_src_factory));
|
||||
gst_element_factory_add_pad_template (factory,
|
||||
GST_PAD_TEMPLATE_GET (gst_ffmpegdemux_audio_src_factory));
|
||||
/* create a cache for these properties */
|
||||
params = g_new0 (GstFFMpegDemuxClassParams, 1);
|
||||
params->in_plugin = in_plugin;
|
||||
params->typefind_feature = GST_PLUGIN_FEATURE (type_factory);
|
||||
params->sinktempl = gst_pad_template_new ("sink", GST_PAD_SINK,
|
||||
GST_PAD_ALWAYS,
|
||||
sinkcaps, NULL);
|
||||
gst_element_factory_add_pad_template (factory,
|
||||
params->sinktempl);
|
||||
params->audiosrctempl = gst_pad_template_new ("audio_%02d",
|
||||
GST_PAD_SRC,
|
||||
GST_PAD_SOMETIMES,
|
||||
audiosrccaps, NULL);
|
||||
gst_element_factory_add_pad_template (factory,
|
||||
params->audiosrctempl);
|
||||
params->videosrctempl = gst_pad_template_new ("video_%02d",
|
||||
GST_PAD_SRC,
|
||||
GST_PAD_SOMETIMES,
|
||||
videosrccaps, NULL);
|
||||
gst_element_factory_add_pad_template (factory,
|
||||
params->videosrctempl);
|
||||
|
||||
g_hash_table_insert (global_plugins,
|
||||
GINT_TO_POINTER (type),
|
||||
(gpointer) params);
|
||||
|
||||
g_hash_table_insert (typefind,
|
||||
(gpointer) type_factory,
|
||||
(gpointer) params);
|
||||
|
||||
gst_element_factory_set_rank (factory, GST_ELEMENT_RANK_MARGINAL);
|
||||
|
||||
/* The very last thing is to register the elementfactory with the plugin. */
|
||||
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
|
||||
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (type_factory));
|
||||
|
||||
next:
|
||||
in_plugin = in_plugin->next;
|
||||
|
|
|
|||
Loading…
Reference in a new issue