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interlace: merge telecine into normal operation

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This commit is contained in:
David Schleef 2010-09-18 13:32:07 -07:00
parent 351562936c
commit fd3d269b8d
1 changed files with 154 additions and 213 deletions
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367
gst/interlace/gstinterlace.c
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@ -43,7 +43,7 @@
* |[ * |[
* gst-launch -v videotestsrc pattern=ball ! video/x-raw-yuv, * gst-launch -v videotestsrc pattern=ball ! video/x-raw-yuv,
* format=\(fourcc\)I420,width=720,height=480,framerate=24000/1001, * format=\(fourcc\)I420,width=720,height=480,framerate=24000/1001,
* pixel-aspect-ratio=11/10 ! interlace mode=telecine telecine-pattern=2:3 ! * pixel-aspect-ratio=11/10 ! interlace pattern=2:3 !
* ... * ...
* ]| * ]|
* This pipeline converts a 24 frames per second progressive film stream into a * This pipeline converts a 24 frames per second progressive film stream into a
@ -90,17 +90,21 @@ struct _GstInterlace
/* properties */ /* properties */
gboolean top_field_first; gboolean top_field_first;
gint mode; gint pattern;
/* state */ /* state */
int width; int width;
int height; int height;
GstVideoFormat format; GstVideoFormat format;
int src_fps_n;
int src_fps_d;
GstBuffer *stored_frame; GstBuffer *stored_frame;
gint stored_fields_pushed; gint stored_fields;
gint telecine_pattern;
gint phase_index; gint phase_index;
GstClockTime buffer_ts; GstClockTime buffer_ts;
int first_field;
}; };
struct _GstInterlaceClass struct _GstInterlaceClass
@ -112,37 +116,13 @@ enum
{ {
PROP_0, PROP_0,
PROP_TOP_FIELD_FIRST, PROP_TOP_FIELD_FIRST,
PROP_MODE, PROP_PATTERN
PROP_TELECINE_PATTERN
}; };
typedef enum typedef enum
{ {
GST_INTERLACE_MODE_INTERLACE, GST_INTERLACE_PATTERN_1_1,
GST_INTERLACE_MODE_TELECINE GST_INTERLACE_PATTERN_2_2,
} GstInterlaceMode;
#define GST_INTERLACE_MODE (gst_interlace_mode_get_type ())
static GType
gst_interlace_mode_get_type (void)
{
static GType interlace_mode_type = 0;
static const GEnumValue mode_types[] = {
{GST_INTERLACE_MODE_INTERLACE, "Interlace", "interlace"},
{GST_INTERLACE_MODE_TELECINE, "Telecine", "telecine"},
{0, NULL, NULL}
};
if (!interlace_mode_type) {
interlace_mode_type =
g_enum_register_static ("GstInterlaceMode", mode_types);
}
return interlace_mode_type;
}
typedef enum
{
GST_INTERLACE_PATTERN_2_3, GST_INTERLACE_PATTERN_2_3,
GST_INTERLACE_PATTERN_2_3_3_2, GST_INTERLACE_PATTERN_2_3_3_2,
GST_INTERLACE_PATTERN_EURO GST_INTERLACE_PATTERN_EURO
@ -154,6 +134,8 @@ gst_interlace_pattern_get_type (void)
{ {
static GType interlace_pattern_type = 0; static GType interlace_pattern_type = 0;
static const GEnumValue pattern_types[] = { static const GEnumValue pattern_types[] = {
{GST_INTERLACE_PATTERN_1_1, "1:1", "1:1"},
{GST_INTERLACE_PATTERN_2_2, "2:2", "2:2"},
{GST_INTERLACE_PATTERN_2_3, "2:3", "2:3"}, {GST_INTERLACE_PATTERN_2_3, "2:3", "2:3"},
{GST_INTERLACE_PATTERN_2_3_3_2, "2:3:3:2", "2:3:3:2"}, {GST_INTERLACE_PATTERN_2_3_3_2, "2:3:3:2", "2:3:3:2"},
{GST_INTERLACE_PATTERN_EURO, "Euro 2-11:3", "2-11:3"}, {GST_INTERLACE_PATTERN_EURO, "Euro 2-11:3", "2-11:3"},
@ -238,7 +220,7 @@ gst_interlace_base_init (gpointer g_class)
gst_element_class_set_details_simple (element_class, gst_element_class_set_details_simple (element_class,
"Interlace filter", "Filter/Video", "Interlace filter", "Filter/Video",
"Creates an interlaced video from progressive frames", "Creates an interlaced video from progressive frames",
"Entropy Wave <ds@entropywave.com>"); "David Schleef <ds@schleef.org>");
gst_element_class_add_pad_template (element_class, gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_interlace_sink_template)); gst_static_pad_template_get (&gst_interlace_sink_template));
@ -264,12 +246,8 @@ gst_interlace_class_init (GstInterlaceClass * klass)
"Interlaced stream should be top field first", FALSE, "Interlaced stream should be top field first", FALSE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (object_class, PROP_MODE, g_object_class_install_property (object_class, PROP_PATTERN,
g_param_spec_enum ("mode", "Mode", "Type of interlacing to be performed", g_param_spec_enum ("pattern", "Telecine pattern",
GST_INTERLACE_MODE, GST_INTERLACE_MODE_INTERLACE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (object_class, PROP_TELECINE_PATTERN,
g_param_spec_enum ("telecine-pattern", "Telecine pattern",
"Pattern of fields to be used for telecine", GST_INTERLACE_PATTERN, "Pattern of fields to be used for telecine", GST_INTERLACE_PATTERN,
GST_INTERLACE_PATTERN_2_3, GST_INTERLACE_PATTERN_2_3,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
@ -301,8 +279,7 @@ gst_interlace_init (GstInterlace * interlace)
gst_pad_set_getcaps_function (interlace->srcpad, gst_interlace_getcaps); gst_pad_set_getcaps_function (interlace->srcpad, gst_interlace_getcaps);
interlace->top_field_first = FALSE; interlace->top_field_first = FALSE;
interlace->mode = GST_INTERLACE_MODE_INTERLACE; interlace->pattern = GST_INTERLACE_PATTERN_2_3;
interlace->telecine_pattern = GST_INTERLACE_PATTERN_2_3;
gst_interlace_reset (interlace); gst_interlace_reset (interlace);
} }
@ -310,32 +287,39 @@ typedef struct _PulldownFormat PulldownFormat;
struct _PulldownFormat struct _PulldownFormat
{ {
const gchar *name; const gchar *name;
/* ratio between outgoing field rate / 2 and incoming frame rate.
* I.e., 24p -> 60i is 1.25 */
int ratio_n, ratio_d;
int n_fields[13]; int n_fields[13];
int dur_n, dur_d;
}; };
static const PulldownFormat formats[] = { static const PulldownFormat formats[] = {
/* 24p -> 30fps telecine */ /* 60p -> 60i or 50p -> 50i */
{"2:3", {2, 3,}, 1001, 30000}, {"1:1", 1, 2, {1}},
{"2:3:3:2", {2, 3, 3, 2,}, 1001, 30000}, /* 30p -> 60i or 25p -> 50i */
{"2:2", 1, 1, {2}},
/* 24p -> 60i telecine */
{"2:3", 5, 4, {2, 3,}},
{"2:3:3:2", 5, 4, {2, 3, 3, 2,}},
/* 24p -> 50i Euro pulldown */ /* 24p -> 50i Euro pulldown */
{"2-11:3", {2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3,}, 1, 25} {"2-11:3", 25, 24, {2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3,}}
}; };
static void static void
gst_interlace_telecine_decorate_buffer (GstInterlace * interlace, gst_interlace_decorate_buffer (GstInterlace * interlace, GstBuffer * buf)
GstBuffer * buf, const PulldownFormat * format)
{ {
GST_BUFFER_TIMESTAMP (buf) = interlace->buffer_ts; GST_BUFFER_TIMESTAMP (buf) = interlace->buffer_ts;
GST_BUFFER_DURATION (buf) = GST_BUFFER_DURATION (buf) =
gst_util_uint64_scale (GST_SECOND, format->dur_n, format->dur_d); gst_util_uint64_scale (GST_SECOND, interlace->src_fps_d,
interlace->src_fps_n);
/* increment the buffer timestamp by duration for the next buffer */ /* increment the buffer timestamp by duration for the next buffer */
interlace->buffer_ts += interlace->buffer_ts += gst_util_uint64_scale (GST_SECOND,
gst_util_uint64_scale (GST_SECOND, format->dur_n, format->dur_d); interlace->src_fps_d, interlace->src_fps_n);
gst_buffer_set_caps (buf, interlace->srccaps); gst_buffer_set_caps (buf, interlace->srccaps);
if (interlace->top_field_first) if (interlace->first_field == 0) {
GST_BUFFER_FLAG_SET (buf, GST_VIDEO_BUFFER_TFF); GST_BUFFER_FLAG_SET (buf, GST_VIDEO_BUFFER_TFF);
}
} }
static gboolean static gboolean
@ -361,51 +345,53 @@ gst_interlace_sink_event (GstPad * pad, GstEvent * event)
ret = gst_pad_push_event (interlace->srcpad, event); ret = gst_pad_push_event (interlace->srcpad, event);
break; break;
case GST_EVENT_EOS: case GST_EVENT_EOS:
if (interlace->mode == GST_INTERLACE_MODE_TELECINE) { #if 0
gint num_fields; /* FIXME revive this when we output ONEFIELD and RFF buffers */
const PulldownFormat *format = &formats[interlace->telecine_pattern]; {
gint num_fields;
const PulldownFormat *format = &formats[interlace->pattern];
num_fields = num_fields =
format->n_fields[interlace->phase_index] - format->n_fields[interlace->phase_index] -
interlace->stored_fields_pushed; interlace->stored_fields_pushed;
interlace->stored_fields_pushed = 0; interlace->stored_fields_pushed = 0;
/* on EOS we want to push as many sane frames as are left */ /* on EOS we want to push as many sane frames as are left */
while (num_fields > 1) { while (num_fields > 1) {
GstBuffer *output_buffer; GstBuffer *output_buffer;
/* make metadata writable before editing it */ /* make metadata writable before editing it */
interlace->stored_frame = interlace->stored_frame =
gst_buffer_make_metadata_writable (interlace->stored_frame); gst_buffer_make_metadata_writable (interlace->stored_frame);
num_fields -= 2; num_fields -= 2;
gst_interlace_telecine_decorate_buffer (interlace, gst_interlace_decorate_buffer (interlace, interlace->stored_frame);
interlace->stored_frame, format);
/* ref output_buffer/stored frame because we want to keep it for now /* ref output_buffer/stored frame because we want to keep it for now
* and pushing gives away a ref */ * and pushing gives away a ref */
output_buffer = gst_buffer_ref (interlace->stored_frame); output_buffer = gst_buffer_ref (interlace->stored_frame);
if (gst_pad_push (interlace->srcpad, output_buffer)) { if (gst_pad_push (interlace->srcpad, output_buffer)) {
GST_DEBUG_OBJECT (interlace, "Failed to push buffer %p", GST_DEBUG_OBJECT (interlace, "Failed to push buffer %p",
output_buffer); output_buffer);
return FALSE; return FALSE;
}
output_buffer = NULL;
if (num_fields <= 1) {
gst_buffer_unref (interlace->stored_frame);
interlace->stored_frame = NULL;
break;
}
} }
output_buffer = NULL;
/* increment the phase index */ if (num_fields <= 1) {
interlace->phase_index++; gst_buffer_unref (interlace->stored_frame);
if (!format->n_fields[interlace->phase_index]) { interlace->stored_frame = NULL;
interlace->phase_index = 0; break;
} }
} }
/* increment the phase index */
interlace->phase_index++;
if (!format->n_fields[interlace->phase_index]) {
interlace->phase_index = 0;
}
}
#endif
ret = gst_pad_push_event (interlace->srcpad, event); ret = gst_pad_push_event (interlace->srcpad, event);
break; break;
default: default:
@ -456,7 +442,6 @@ gst_interlace_setcaps (GstPad * pad, GstCaps * caps)
int fps_n, fps_d; int fps_n, fps_d;
GstPad *otherpad; GstPad *otherpad;
GstCaps *othercaps; GstCaps *othercaps;
GString *method = NULL;
const PulldownFormat *pdformat; const PulldownFormat *pdformat;
interlace = GST_INTERLACE (gst_pad_get_parent (pad)); interlace = GST_INTERLACE (gst_pad_get_parent (pad));
@ -472,33 +457,16 @@ gst_interlace_setcaps (GstPad * pad, GstCaps * caps)
goto error; goto error;
othercaps = gst_caps_copy (caps); othercaps = gst_caps_copy (caps);
pdformat = &formats[interlace->pattern];
if (interlace->mode == GST_INTERLACE_MODE_TELECINE) {
pdformat = &formats[interlace->telecine_pattern];
method = g_string_new ("telecine-");
g_string_append (method, pdformat->name);
}
if (pad == interlace->srcpad) { if (pad == interlace->srcpad) {
gst_caps_set_simple (othercaps, "interlaced", G_TYPE_BOOLEAN, FALSE, NULL); gst_caps_set_simple (othercaps, "interlaced", G_TYPE_BOOLEAN, FALSE, NULL);
if (interlace->mode == GST_INTERLACE_MODE_INTERLACE) { gst_caps_set_simple (othercaps, "framerate", GST_TYPE_FRACTION,
gst_caps_set_simple (othercaps, "framerate", GST_TYPE_FRACTION, fps_n * 2, fps_n * pdformat->ratio_d, fps_d * pdformat->ratio_n, NULL);
fps_d, NULL);
} else {
gst_caps_set_simple (caps, "framerate", GST_TYPE_FRACTION,
pdformat->dur_d, pdformat->dur_n, "interlacing-method", G_TYPE_STRING,
method->str, NULL);
}
} else { } else {
gst_caps_set_simple (othercaps, "interlaced", G_TYPE_BOOLEAN, TRUE, NULL); gst_caps_set_simple (othercaps, "interlaced", G_TYPE_BOOLEAN, TRUE, NULL);
if (interlace->mode == GST_INTERLACE_MODE_INTERLACE) { gst_caps_set_simple (othercaps, "framerate", GST_TYPE_FRACTION,
gst_caps_set_simple (othercaps, "framerate", GST_TYPE_FRACTION, fps_n, fps_n * pdformat->ratio_n, fps_d * pdformat->ratio_d, NULL);
fps_d * 2, NULL);
} else {
gst_caps_set_simple (othercaps, "framerate", GST_TYPE_FRACTION,
pdformat->dur_d, pdformat->dur_n, "interlacing-method", G_TYPE_STRING,
method->str, NULL);
}
} }
ret = gst_pad_set_caps (otherpad, othercaps); ret = gst_pad_set_caps (otherpad, othercaps);
@ -510,9 +478,13 @@ gst_interlace_setcaps (GstPad * pad, GstCaps * caps)
interlace->height = height; interlace->height = height;
if (pad == interlace->sinkpad) { if (pad == interlace->sinkpad) {
interlace->srccaps = gst_caps_ref (othercaps); gst_caps_replace (&interlace->srccaps, othercaps);
interlace->src_fps_n = fps_n * pdformat->ratio_n;
interlace->src_fps_d = fps_d * pdformat->ratio_d;
} else { } else {
interlace->srccaps = gst_caps_ref (caps); gst_caps_replace (&interlace->srccaps, caps);
interlace->src_fps_n = fps_n;
interlace->src_fps_d = fps_d;
} }
error: error:
@ -629,8 +601,9 @@ static GstFlowReturn
gst_interlace_chain (GstPad * pad, GstBuffer * buffer) gst_interlace_chain (GstPad * pad, GstBuffer * buffer)
{ {
GstInterlace *interlace = GST_INTERLACE (gst_pad_get_parent (pad)); GstInterlace *interlace = GST_INTERLACE (gst_pad_get_parent (pad));
GstFlowReturn ret; GstFlowReturn ret = GST_FLOW_OK;
gint num_fields = 0; gint num_fields = 0;
int current_fields;
GST_DEBUG ("Received buffer at %u:%02u:%02u:%09u", GST_DEBUG ("Received buffer at %u:%02u:%02u:%09u",
(guint) (GST_BUFFER_TIMESTAMP (buffer) / (GST_SECOND * 60 * 60)), (guint) (GST_BUFFER_TIMESTAMP (buffer) / (GST_SECOND * 60 * 60)),
@ -648,6 +621,18 @@ gst_interlace_chain (GstPad * pad, GstBuffer * buffer)
if (GST_BUFFER_FLAGS (buffer) & GST_BUFFER_FLAG_DISCONT) { if (GST_BUFFER_FLAGS (buffer) & GST_BUFFER_FLAG_DISCONT) {
GST_DEBUG ("discont"); GST_DEBUG ("discont");
if (interlace->stored_frame) {
gst_buffer_unref (interlace->stored_frame);
}
interlace->stored_frame = NULL;
interlace->stored_fields = 0;
if (interlace->top_field_first) {
interlace->first_field = 0;
} else {
interlace->first_field = 1;
}
} }
if (interlace->buffer_ts == GST_CLOCK_TIME_NONE) { if (interlace->buffer_ts == GST_CLOCK_TIME_NONE) {
@ -655,102 +640,64 @@ gst_interlace_chain (GstPad * pad, GstBuffer * buffer)
interlace->buffer_ts = GST_BUFFER_TIMESTAMP (buffer); interlace->buffer_ts = GST_BUFFER_TIMESTAMP (buffer);
} }
if (interlace->stored_frame == NULL) { current_fields = formats->n_fields[interlace->phase_index];
interlace->stored_frame = buffer; /* increment the phase index */
ret = GST_FLOW_OK; interlace->phase_index++;
} else { if (!formats->n_fields[interlace->phase_index]) {
switch (interlace->mode) { interlace->phase_index = 0;
case GST_INTERLACE_MODE_INTERLACE: }
{ GST_ERROR ("incoming buffer assigned %d fields", current_fields);
GstBuffer *output_buffer;
output_buffer = gst_buffer_new_and_alloc (GST_BUFFER_SIZE (buffer)); num_fields = interlace->stored_fields + current_fields;
while (num_fields >= 2) {
GstBuffer *output_buffer;
copy_field (interlace, output_buffer, interlace->stored_frame, GST_ERROR ("have %d fields, %d current, %d stored",
!interlace->top_field_first); num_fields, current_fields, interlace->stored_fields);
copy_field (interlace, output_buffer, buffer,
interlace->top_field_first);
GST_BUFFER_TIMESTAMP (output_buffer) = output_buffer = gst_buffer_new_and_alloc (GST_BUFFER_SIZE (buffer));
GST_BUFFER_TIMESTAMP (interlace->stored_frame);
GST_BUFFER_DURATION (output_buffer) =
GST_BUFFER_DURATION (interlace->stored_frame) +
GST_BUFFER_DURATION (buffer);
gst_buffer_set_caps (output_buffer, interlace->srccaps);
if (interlace->top_field_first) { if (interlace->stored_fields > 0) {
GST_BUFFER_FLAG_SET (output_buffer, GST_VIDEO_BUFFER_TFF); GST_ERROR ("1 field from stored, 1 from current");
} /* take the first field from the stored frame */
copy_field (interlace, output_buffer, interlace->stored_frame,
ret = gst_pad_push (interlace->srcpad, output_buffer); interlace->first_field);
interlace->stored_fields--;
gst_buffer_unref (buffer); /* take the second field from the incoming buffer */
gst_buffer_unref (interlace->stored_frame); copy_field (interlace, output_buffer, buffer, interlace->first_field ^ 1);
interlace->stored_frame = NULL; current_fields--;
break; } else {
} GST_ERROR ("2 fields from current");
case GST_INTERLACE_MODE_TELECINE: /* take both buffers from incoming buffer */
{ /* FIXME this should push the existing buffer */
const PulldownFormat *format = &formats[interlace->telecine_pattern]; copy_field (interlace, output_buffer, buffer, interlace->first_field);
copy_field (interlace, output_buffer, buffer, interlace->first_field ^ 1);
num_fields = current_fields -= 2;
format->n_fields[interlace->phase_index] -
interlace->stored_fields_pushed;
interlace->stored_fields_pushed = 0;
while (num_fields > 0) {
GstBuffer *output_buffer;
if (num_fields > 1) {
/* make metadata writable before editing it */
interlace->stored_frame =
gst_buffer_make_metadata_writable (interlace->stored_frame);
num_fields -= 2;
gst_interlace_telecine_decorate_buffer (interlace,
interlace->stored_frame, format);
/* ref output_buffer/stored frame because we want to keep it for now
* and pushing gives away a ref */
output_buffer = gst_buffer_ref (interlace->stored_frame);
} else {
output_buffer = gst_buffer_new_and_alloc (GST_BUFFER_SIZE (buffer));
/* take the top field from the stored frame */
copy_field (interlace, output_buffer, interlace->stored_frame, 0);
/* take the bottom field from the incoming buffer */
copy_field (interlace, output_buffer, buffer, 1);
/* one field pushed from the stored frame, one from the incoming
* buffer that will become stored */
num_fields--;
interlace->stored_fields_pushed = 1;
gst_interlace_telecine_decorate_buffer (interlace, output_buffer,
format);
}
if ((ret = gst_pad_push (interlace->srcpad, output_buffer))) {
GST_DEBUG_OBJECT (interlace, "Failed to push buffer %p",
output_buffer);
return ret;
}
output_buffer = NULL;
if (!num_fields) {
gst_buffer_unref (interlace->stored_frame);
/* if we still need one field from the incoming buffer, store it */
interlace->stored_frame = buffer;
break;
}
}
/* increment the phase index */
interlace->phase_index++;
if (!format->n_fields[interlace->phase_index]) {
interlace->phase_index = 0;
}
break;
}
default:
break;
} }
num_fields -= 2;
gst_interlace_decorate_buffer (interlace, output_buffer);
ret = gst_pad_push (interlace->srcpad, output_buffer);
if (ret != GST_FLOW_OK) {
GST_DEBUG_OBJECT (interlace, "Failed to push buffer %p", output_buffer);
break;
}
}
GST_ERROR ("done. %d fields remaining", current_fields);
if (interlace->stored_frame) {
gst_buffer_unref (interlace->stored_frame);
interlace->stored_frame = NULL;
interlace->stored_fields = 0;
}
if (current_fields > 0) {
interlace->stored_frame = buffer;
interlace->stored_fields = current_fields;
} else {
gst_buffer_unref (buffer);
} }
gst_object_unref (interlace); gst_object_unref (interlace);
@ -768,11 +715,8 @@ gst_interlace_set_property (GObject * object,
case PROP_TOP_FIELD_FIRST: case PROP_TOP_FIELD_FIRST:
interlace->top_field_first = g_value_get_boolean (value); interlace->top_field_first = g_value_get_boolean (value);
break; break;
case PROP_MODE: case PROP_PATTERN:
interlace->mode = g_value_get_enum (value); interlace->pattern = g_value_get_enum (value);
break;
case PROP_TELECINE_PATTERN:
interlace->telecine_pattern = g_value_get_enum (value);
break; break;
default: default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
@ -790,11 +734,8 @@ gst_interlace_get_property (GObject * object,
case PROP_TOP_FIELD_FIRST: case PROP_TOP_FIELD_FIRST:
g_value_set_boolean (value, interlace->top_field_first); g_value_set_boolean (value, interlace->top_field_first);
break; break;
case PROP_MODE: case PROP_PATTERN:
g_value_set_enum (value, interlace->mode); g_value_set_enum (value, interlace->pattern);
break;
case PROP_TELECINE_PATTERN:
g_value_set_enum (value, interlace->telecine_pattern);
break; break;
default: default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);