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ext/x264/: Use GQueue in stead of custom queue code.

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Original commit message from CVS:
* ext/x264/Makefile.am:
* ext/x264/gstx264enc.c: (gst_x264_enc_set_src_caps),
(gst_x264_enc_sink_set_caps), (gst_x264_enc_init),
(gst_x264_enc_reset), (gst_x264_enc_finalize),
(gst_x264_enc_flush_frames), (gst_x264_enc_sink_event),
(gst_x264_enc_chain), (gst_x264_enc_encode_frame),
(gst_x264_enc_change_state), (gst_x264_enc_set_property):
* ext/x264/gstx264enc.h:
Use GQueue in stead of custom queue code.
Factorize flushing out encoder delayed frames.
Factorize initialization and state change reset.
This commit is contained in:
Mark Nauwelaerts 2008-08-08 14:19:16 +00:00
parent 18d7934ae3
commit 624612a9ca
4 changed files with 96 additions and 119 deletions
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14
ChangeLog
View file

@ -1,3 +1,17 @@
2008-08-08 Mark Nauwelaerts <mark.nauwelaerts@collabora.co.uk>
* ext/x264/Makefile.am:
* ext/x264/gstx264enc.c: (gst_x264_enc_set_src_caps),
(gst_x264_enc_sink_set_caps), (gst_x264_enc_init),
(gst_x264_enc_reset), (gst_x264_enc_finalize),
(gst_x264_enc_flush_frames), (gst_x264_enc_sink_event),
(gst_x264_enc_chain), (gst_x264_enc_encode_frame),
(gst_x264_enc_change_state), (gst_x264_enc_set_property):
* ext/x264/gstx264enc.h:
Use GQueue in stead of custom queue code.
Factorize flushing out encoder delayed frames.
Factorize initialization and state change reset.
2008-08-08 Mark Nauwelaerts <mark.nauwelaerts@collabora.co.uk>
* ext/x264/gstx264enc.h:

11
ext/x264/Makefile.am
View file

@ -1,9 +1,14 @@
plugin_LTLIBRARIES = libgstx264.la
libgstx264_la_SOURCES = gstx264enc.c
libgstx264_la_CFLAGS = $(X264_CFLAGS) $(GST_CFLAGS) $(GST_PLUGINS_BASE_CFLAGS)
libgstx264_la_LIBADD = $(X264_LIBS) $(GST_LIBS) $(GST_PLUGINS_BASE_LIBS) \
-lgstvideo-$(GST_MAJORMINOR)
libgstx264_la_CFLAGS = \
$(GST_PLUGINS_BASE_CFLAGS) \
$(GST_CFLAGS) \
$(X264_CFLAGS)
libgstx264_la_LIBADD = \
$(GST_PLUGINS_BASE_LIBS) -lgstvideo-$(GST_MAJORMINOR) \
$(GST_LIBS) \
$(X264_LIBS)
libgstx264_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
noinst_HEADERS = gstx264enc.h

182
ext/x264/gstx264enc.c
View file

@ -129,14 +129,16 @@ static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
GST_BOILERPLATE (GstX264Enc, gst_x264_enc, GstElement, GST_TYPE_ELEMENT);
static void gst_x264_enc_finalize (GObject * object);
static void gst_x264_enc_reset (GstX264Enc * encoder);
static gboolean gst_x264_enc_init_encoder (GstX264Enc * encoder);
static void gst_x264_enc_close_encoder (GstX264Enc * encoder);
static gboolean gst_x264_enc_sink_event (GstPad * pad, GstEvent * event);
static GstFlowReturn gst_x264_enc_chain (GstPad * pad, GstBuffer * buf);
static void gst_x264_enc_flush_frames (GstX264Enc * encoder, gboolean send);
static GstFlowReturn gst_x264_enc_encode_frame (GstX264Enc * encoder,
x264_picture_t * pic_in, int *i_nal);
x264_picture_t * pic_in, int *i_nal, gboolean send);
static GstStateChangeReturn gst_x264_enc_change_state (GstElement * element,
GstStateChange transition);
@ -145,67 +147,6 @@ static void gst_x264_enc_set_property (GObject * object, guint prop_id,
static void gst_x264_enc_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void
gst_x264_enc_timestamp_queue_init (GstX264Enc * encoder)
{
encoder->timestamp_queue_size = (2 + encoder->bframes + encoder->threads) * 2;
encoder->timestamp_queue_head = 0;
encoder->timestamp_queue_tail = 0;
encoder->timestamp_queue =
g_new (GstClockTime, encoder->timestamp_queue_size);
encoder->timestamp_queue_dur =
g_new (GstClockTime, encoder->timestamp_queue_size);
}
static void
gst_x264_enc_timestamp_queue_free (GstX264Enc * encoder)
{
if (encoder->timestamp_queue) {
g_free (encoder->timestamp_queue);
encoder->timestamp_queue = NULL;
}
if (encoder->timestamp_queue_dur) {
g_free (encoder->timestamp_queue_dur);
encoder->timestamp_queue_dur = NULL;
}
encoder->timestamp_queue_size = 0;
encoder->timestamp_queue_head = 0;
encoder->timestamp_queue_tail = 0;
}
static void
gst_x264_enc_timestamp_queue_put (GstX264Enc * encoder, GstClockTime clock_time,
GstClockTime duration)
{
encoder->timestamp_queue[encoder->timestamp_queue_tail] = clock_time;
encoder->timestamp_queue_dur[encoder->timestamp_queue_tail] = duration;
encoder->timestamp_queue_tail++;
encoder->timestamp_queue_tail %= encoder->timestamp_queue_size;
if (encoder->timestamp_queue_tail == encoder->timestamp_queue_head) {
GST_ELEMENT_ERROR (encoder, STREAM, ENCODE,
("Timestamp queue overflow."), ("FIX CODE"));
}
}
static void
gst_x264_enc_timestamp_queue_get (GstX264Enc * encoder,
GstClockTime * clock_time, GstClockTime * duration)
{
if (encoder->timestamp_queue_head == encoder->timestamp_queue_tail) {
GST_ELEMENT_ERROR (encoder, STREAM, ENCODE,
("Timestamp queue empty or after overflow."), ("FIX CODE"));
*clock_time = GST_CLOCK_TIME_NONE;
*duration = GST_CLOCK_TIME_NONE;
return;
}
*clock_time = encoder->timestamp_queue[encoder->timestamp_queue_head];
*duration = encoder->timestamp_queue_dur[encoder->timestamp_queue_head];
encoder->timestamp_queue_head++;
encoder->timestamp_queue_head %= encoder->timestamp_queue_size;
}
/*
* Returns: Buffer with the stream headers.
@ -284,7 +225,6 @@ static gboolean
gst_x264_enc_set_src_caps (GstX264Enc * encoder, GstPad * pad, GstCaps * caps)
{
GstStructure *structure;
GValue header = { 0, };
GstBuffer *buf;
GstCaps *outcaps;
gboolean res;
@ -292,19 +232,16 @@ gst_x264_enc_set_src_caps (GstX264Enc * encoder, GstPad * pad, GstCaps * caps)
structure = gst_caps_get_structure (caps, 0);
structure = gst_structure_copy (structure);
gst_structure_set_name (structure, "video/x-h264");
outcaps = gst_caps_new_full (structure, NULL);
if (!encoder->byte_stream) {
buf = gst_x264_enc_header_buf (encoder);
if (buf != NULL) {
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_IN_CAPS);
g_value_init (&header, GST_TYPE_BUFFER);
gst_value_set_buffer (&header, buf);
gst_structure_set_value (structure, "codec_data", &header);
g_value_unset (&header);
gst_caps_set_simple (outcaps, "codec_data", GST_TYPE_BUFFER, buf, NULL);
gst_buffer_unref (buf);
}
}
outcaps = gst_caps_new_full (structure, NULL);
res = gst_pad_set_caps (pad, outcaps);
gst_caps_unref (outcaps);
@ -335,18 +272,13 @@ gst_x264_enc_sink_set_caps (GstPad * pad, GstCaps * caps)
/* If the encoder is initialized, do not
reinitialize it again if not necessary */
if (encoder->x264enc) {
GstFlowReturn flow_ret;
gint i_nal;
if (width == encoder->width && height == encoder->height
&& fps_num == encoder->fps_num && fps_den == encoder->fps_den
&& par_num == encoder->par_num && par_den == encoder->par_den)
return TRUE;
/* clear out pending frames */
do {
flow_ret = gst_x264_enc_encode_frame (encoder, NULL, &i_nal);
} while (flow_ret == GST_FLOW_OK && i_nal > 0);
gst_x264_enc_flush_frames (encoder, TRUE);
encoder->sps_id++;
}
@ -534,12 +466,7 @@ gst_x264_enc_init (GstX264Enc * encoder, GstX264EncClass * klass)
gst_pad_use_fixed_caps (encoder->srcpad);
gst_element_add_pad (GST_ELEMENT (encoder), encoder->srcpad);
/* initialize internals */
encoder->x264enc = NULL;
encoder->width = 16;
encoder->height = 16;
/* properties */
encoder->threads = ARG_THREADS_DEFAULT;
encoder->pass = ARG_PASS_DEFAULT;
encoder->stats_file = g_strdup (ARG_STATS_FILE_DEFAULT);
@ -559,18 +486,28 @@ gst_x264_enc_init (GstX264Enc * encoder, GstX264EncClass * klass)
encoder->keyint_max = ARG_KEYINT_MAX_DEFAULT;
encoder->cabac = ARG_CABAC_DEFAULT;
encoder->last_timestamp = GST_CLOCK_TIME_NONE;
gst_x264_enc_timestamp_queue_init (encoder);
/* resources */
encoder->delay = g_queue_new ();
encoder->buffer_size = 1040000;
encoder->buffer = g_malloc (encoder->buffer_size);
x264_param_default (&encoder->x264param);
/* log callback setup */
/* log callback setup; part of parameters */
encoder->x264param.pf_log = GST_DEBUG_FUNCPTR (gst_x264_enc_log_callback);
encoder->x264param.p_log_private = encoder;
encoder->x264param.i_log_level = X264_LOG_DEBUG;
gst_x264_enc_reset (encoder);
}
static void
gst_x264_enc_reset (GstX264Enc * encoder)
{
encoder->x264enc = NULL;
encoder->width = 0;
encoder->height = 0;
encoder->last_timestamp = GST_CLOCK_TIME_NONE;
}
/*
@ -701,13 +638,31 @@ gst_x264_enc_finalize (GObject * object)
encoder->stats_file = NULL;
g_free (encoder->buffer);
encoder->buffer = NULL;
g_queue_free (encoder->delay);
encoder->delay = NULL;
gst_x264_enc_timestamp_queue_free (encoder);
gst_x264_enc_close_encoder (encoder);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_x264_enc_flush_frames (GstX264Enc * encoder, gboolean send)
{
GstFlowReturn flow_ret;
gint i_nal;
/* first send the remaining frames */
if (encoder->x264enc)
do {
flow_ret = gst_x264_enc_encode_frame (encoder, NULL, &i_nal, send);
} while (flow_ret == GST_FLOW_OK && i_nal > 0);
/* in any case, make sure the delay queue is emptied */
while (!g_queue_is_empty (encoder->delay))
gst_buffer_unref (g_queue_pop_head (encoder->delay));
}
static gboolean
gst_x264_enc_sink_event (GstPad * pad, GstEvent * event)
{
@ -717,23 +672,17 @@ gst_x264_enc_sink_event (GstPad * pad, GstEvent * event)
encoder = GST_X264_ENC (gst_pad_get_parent (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:{
GstFlowReturn flow_ret;
int i_nal;
/* first send the rest NAL units */
do {
flow_ret = gst_x264_enc_encode_frame (encoder, NULL, &i_nal);
} while (flow_ret == GST_FLOW_OK && i_nal > 0);
/* then push the EOS downstream */
ret = gst_pad_push_event (encoder->srcpad, event);
case GST_EVENT_EOS:
gst_x264_enc_flush_frames (encoder, TRUE);
break;
}
/* no flushing if flush received,
* buffers in encoder are considered (in the) past */
default:
ret = gst_pad_push_event (encoder->srcpad, event);
break;
}
ret = gst_pad_push_event (encoder->srcpad, event);
gst_object_unref (encoder);
return ret;
}
@ -775,8 +724,7 @@ gst_x264_enc_chain (GstPad * pad, GstBuffer * buf)
}
/* remember the timestamp and duration */
gst_x264_enc_timestamp_queue_put (encoder, GST_BUFFER_TIMESTAMP (buf),
GST_BUFFER_DURATION (buf));
g_queue_push_tail (encoder->delay, buf);
/* set up input picture */
memset (&pic_in, 0, sizeof (pic_in));
@ -791,9 +739,9 @@ gst_x264_enc_chain (GstPad * pad, GstBuffer * buf)
pic_in.i_type = X264_TYPE_AUTO;
pic_in.i_pts = GST_BUFFER_TIMESTAMP (buf);
ret = gst_x264_enc_encode_frame (encoder, &pic_in, &i_nal);
ret = gst_x264_enc_encode_frame (encoder, &pic_in, &i_nal, TRUE);
gst_buffer_unref (buf);
/* input buffer is released later on */
return ret;
/* ERRORS */
@ -816,9 +764,9 @@ wrong_buffer_size:
static GstFlowReturn
gst_x264_enc_encode_frame (GstX264Enc * encoder, x264_picture_t * pic_in,
int *i_nal)
int *i_nal, gboolean send)
{
GstBuffer *out_buf = NULL;
GstBuffer *out_buf = NULL, *in_buf = NULL;
x264_picture_t pic_out;
x264_nal_t *nal;
int i_size;
@ -865,6 +813,20 @@ gst_x264_enc_encode_frame (GstX264Enc * encoder, x264_picture_t * pic_in,
i_size += nal_size + 4;
}
in_buf = g_queue_pop_head (encoder->delay);
if (in_buf) {
timestamp = GST_BUFFER_TIMESTAMP (in_buf);
duration = GST_BUFFER_DURATION (in_buf);
gst_buffer_unref (in_buf);
} else {
GST_ELEMENT_ERROR (encoder, STREAM, ENCODE, NULL,
("Timestamp queue empty."));
return GST_FLOW_ERROR;
}
if (!send)
return GST_FLOW_OK;
ret = gst_pad_alloc_buffer (encoder->srcpad, GST_BUFFER_OFFSET_NONE,
i_size, GST_PAD_CAPS (encoder->srcpad), &out_buf);
if (ret != GST_FLOW_OK)
@ -873,11 +835,9 @@ gst_x264_enc_encode_frame (GstX264Enc * encoder, x264_picture_t * pic_in,
memcpy (GST_BUFFER_DATA (out_buf), encoder->buffer, i_size);
GST_BUFFER_SIZE (out_buf) = i_size;
gst_x264_enc_timestamp_queue_get (encoder, &timestamp, &duration);
/* PTS */
GST_BUFFER_TIMESTAMP (out_buf) = pic_out.i_pts;
if (encoder->bframes) {
if (encoder->x264param.i_bframe) {
/* When using B-frames, the frames will be reordered.
Make PTS start one frame after DTS. */
GST_BUFFER_TIMESTAMP (out_buf)
@ -906,8 +866,10 @@ gst_x264_enc_change_state (GstElement * element, GstStateChange transition)
goto out;
switch (transition) {
case GST_STATE_CHANGE_READY_TO_NULL:
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_x264_enc_flush_frames (encoder, FALSE);
gst_x264_enc_close_encoder (encoder);
gst_x264_enc_reset (encoder);
break;
default:
break;
@ -964,8 +926,6 @@ gst_x264_enc_set_property (GObject * object, guint prop_id,
break;
case ARG_BFRAMES:
encoder->bframes = g_value_get_uint (value);
gst_x264_enc_timestamp_queue_free (encoder);
gst_x264_enc_timestamp_queue_init (encoder);
break;
case ARG_B_PYRAMID:
encoder->b_pyramid = g_value_get_boolean (value);

8
ext/x264/gstx264enc.h
View file

@ -82,12 +82,10 @@ struct _GstX264Enc
gint stride[4], offset[4];
gint image_size;
/* for b-frame delay handling */
GQueue *delay;
GstClockTime last_timestamp;
GstClockTime *timestamp_queue;
GstClockTime *timestamp_queue_dur;
guint timestamp_queue_size;
guint timestamp_queue_head;
guint timestamp_queue_tail;
guint8 *buffer;
gulong buffer_size;