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ext/mpeg2dec/gstmpeg2dec.*: Fix padtemplate as we can now do fractional framerates.

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Original commit message from CVS:
* ext/mpeg2dec/gstmpeg2dec.c: (gst_mpeg2dec_base_init),
(gst_mpeg2dec_class_init), (gst_mpeg2dec_init),
(gst_mpeg2dec_finalize), (gst_mpeg2dec_reset),
(gst_mpeg2dec_qos_reset), (gst_mpeg2dec_alloc_buffer),
(gst_mpeg2dec_negotiate_format), (init_dummybuf),
(handle_sequence), (handle_picture), (handle_slice),
(gst_mpeg2dec_chain), (gst_mpeg2dec_sink_event),
(gst_mpeg2dec_src_event), (gst_mpeg2dec_change_state):
* ext/mpeg2dec/gstmpeg2dec.h:
Fix padtemplate as we can now do fractional framerates.
Small cleanups.
Use GstSegment.
Add simple frame dropping QoS.
Precalc buffer output sizes and UV offsets.
Always give libmpeg2 a valid fbuf when it wants one.
don't trust libmpeg to discard our buffers but manage it
ourselves.
Fixes #343627, #327350, #335288
This commit is contained in:
Wim Taymans 2006-06-07 16:15:42 +00:00
parent 252d48f7d3
commit 78d4166a4f
4 changed files with 401 additions and 284 deletions
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21
ChangeLog
View file

@ -1,3 +1,24 @@
2006-06-07 Wim Taymans <wim@fluendo.com>
* ext/mpeg2dec/gstmpeg2dec.c: (gst_mpeg2dec_base_init),
(gst_mpeg2dec_class_init), (gst_mpeg2dec_init),
(gst_mpeg2dec_finalize), (gst_mpeg2dec_reset),
(gst_mpeg2dec_qos_reset), (gst_mpeg2dec_alloc_buffer),
(gst_mpeg2dec_negotiate_format), (init_dummybuf),
(handle_sequence), (handle_picture), (handle_slice),
(gst_mpeg2dec_chain), (gst_mpeg2dec_sink_event),
(gst_mpeg2dec_src_event), (gst_mpeg2dec_change_state):
* ext/mpeg2dec/gstmpeg2dec.h:
Fix padtemplate as we can now do fractional framerates.
Small cleanups.
Use GstSegment.
Add simple frame dropping QoS.
Precalc buffer output sizes and UV offsets.
Always give libmpeg2 a valid fbuf when it wants one.
don't trust libmpeg to discard our buffers but manage it
ourselves.
Fixes #343627, #327350, #335288
2006-06-05 Sebastien Moutte <sebastien@moutte.net>
* win32/MANIFEST:

2
common

@ -1 +1 @@
Subproject commit 4282dfa89d50e80f59d4e1837af95fbf74e75d18
Subproject commit 5d58e7652bf38a637dceca167d6e47e7794b2b52

635
ext/mpeg2dec/gstmpeg2dec.c
View file

@ -66,61 +66,6 @@ GST_ELEMENT_DETAILS ("mpeg1 and mpeg2 video decoder",
*/
#define MAX_ERROR_COUNT (5)
/*
* We can't use fractions in static pad templates, so
* we do something manual...
* FIXME: This is no longer true. We could use a normal pad template
* now
*/
static GstPadTemplate *
src_templ (void)
{
static GstPadTemplate *templ = NULL;
if (!templ) {
GstCaps *caps;
GstStructure *structure;
GValue list = { 0 }
, fps = {
0}
, fmt = {
0};
char *fmts[] = { "YV12", "I420", "Y42B", NULL };
guint n;
caps = gst_caps_new_simple ("video/x-raw-yuv",
"format", GST_TYPE_FOURCC,
GST_MAKE_FOURCC ('I', '4', '2', '0'),
"width", GST_TYPE_INT_RANGE, 16, 4096,
"height", GST_TYPE_INT_RANGE, 16, 4096, NULL);
structure = gst_caps_get_structure (caps, 0);
g_value_init (&list, GST_TYPE_LIST);
g_value_init (&fps, GST_TYPE_FRACTION);
for (n = 0; fpss[n][0] != 0; n++) {
gst_value_set_fraction (&fps, fpss[n][0], fpss[n][1]);
gst_value_list_append_value (&list, &fps);
}
gst_structure_set_value (structure, "framerate", &list);
g_value_unset (&list);
g_value_unset (&fps);
g_value_init (&list, GST_TYPE_LIST);
g_value_init (&fmt, GST_TYPE_FOURCC);
for (n = 0; fmts[n] != NULL; n++) {
gst_value_set_fourcc (&fmt, GST_STR_FOURCC (fmts[n]));
gst_value_list_append_value (&list, &fmt);
}
gst_structure_set_value (structure, "format", &list);
g_value_unset (&list);
g_value_unset (&fmt);
templ = gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, caps);
}
return templ;
}
#ifdef enable_user_data
static GstStaticPadTemplate user_data_template_factory =
GST_STATIC_PAD_TEMPLATE ("user_data",
@ -137,11 +82,22 @@ GST_STATIC_PAD_TEMPLATE ("sink",
"mpegversion = (int) [ 1, 2 ], " "systemstream = (boolean) false")
);
static GstStaticPadTemplate src_template_factory =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw-yuv, "
"format = (fourcc) { YV12, I420, Y42B }, "
"width = (int) [ 16, 4096 ], "
"height = (int) [ 16, 4096 ], "
"framerate = (fraction) { 24000/1001, 24/1, 25/1, 30000/1001, 30/1, 50/1, 60000/1001, 60/1 }")
);
static void gst_mpeg2dec_base_init (gpointer g_class);
static void gst_mpeg2dec_class_init (GstMpeg2decClass * klass);
static void gst_mpeg2dec_init (GstMpeg2dec * mpeg2dec);
static void gst_mpeg2dec_dispose (GObject * object);
static void gst_mpeg2dec_finalize (GObject * object);
static void gst_mpeg2dec_reset (GstMpeg2dec * mpeg2dec);
static void gst_mpeg2dec_set_property (GObject * object, guint prop_id,
@ -168,7 +124,6 @@ static gboolean gst_mpeg2dec_sink_event (GstPad * pad, GstEvent * event);
static GstFlowReturn gst_mpeg2dec_chain (GstPad * pad, GstBuffer * buf);
//static gboolean gst_mpeg2dec_sink_query (GstPad * pad, GstQuery * query);
static GstCaps *gst_mpeg2dec_src_getcaps (GstPad * pad);
#if 0
static const GstFormat *gst_mpeg2dec_get_formats (GstPad * pad);
@ -218,7 +173,8 @@ gst_mpeg2dec_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_pad_template (element_class, src_templ ());
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&src_template_factory));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_template_factory));
#ifdef enable_user_data
@ -241,7 +197,7 @@ gst_mpeg2dec_class_init (GstMpeg2decClass * klass)
gobject_class->set_property = gst_mpeg2dec_set_property;
gobject_class->get_property = gst_mpeg2dec_get_property;
gobject_class->dispose = gst_mpeg2dec_dispose;
gobject_class->finalize = gst_mpeg2dec_finalize;
gstelement_class->change_state = gst_mpeg2dec_change_state;
gstelement_class->set_index = gst_mpeg2dec_set_index;
@ -255,24 +211,27 @@ gst_mpeg2dec_init (GstMpeg2dec * mpeg2dec)
mpeg2dec->sinkpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&sink_template_factory), "sink");
gst_element_add_pad (GST_ELEMENT (mpeg2dec), mpeg2dec->sinkpad);
gst_pad_set_chain_function (mpeg2dec->sinkpad,
GST_DEBUG_FUNCPTR (gst_mpeg2dec_chain));
//gst_pad_set_query_function (mpeg2dec->sinkpad,
// GST_DEBUG_FUNCPTR (gst_mpeg2dec_get_sink_query));
#if 0
gst_pad_set_query_function (mpeg2dec->sinkpad,
GST_DEBUG_FUNCPTR (gst_mpeg2dec_get_sink_query));
#endif
gst_pad_set_event_function (mpeg2dec->sinkpad,
GST_DEBUG_FUNCPTR (gst_mpeg2dec_sink_event));
gst_element_add_pad (GST_ELEMENT (mpeg2dec), mpeg2dec->sinkpad);
mpeg2dec->srcpad = gst_pad_new_from_template (src_templ (), "src");
gst_element_add_pad (GST_ELEMENT (mpeg2dec), mpeg2dec->srcpad);
gst_pad_set_getcaps_function (mpeg2dec->srcpad,
GST_DEBUG_FUNCPTR (gst_mpeg2dec_src_getcaps));
mpeg2dec->srcpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&src_template_factory), "src");
gst_pad_set_event_function (mpeg2dec->srcpad,
GST_DEBUG_FUNCPTR (gst_mpeg2dec_src_event));
gst_pad_set_query_type_function (mpeg2dec->srcpad,
GST_DEBUG_FUNCPTR (gst_mpeg2dec_get_src_query_types));
gst_pad_set_query_function (mpeg2dec->srcpad,
GST_DEBUG_FUNCPTR (gst_mpeg2dec_src_query));
gst_pad_use_fixed_caps (mpeg2dec->srcpad);
gst_element_add_pad (GST_ELEMENT (mpeg2dec), mpeg2dec->srcpad);
#ifdef enable_user_data
mpeg2dec->userdatapad =
@ -287,7 +246,7 @@ gst_mpeg2dec_init (GstMpeg2dec * mpeg2dec)
}
static void
gst_mpeg2dec_dispose (GObject * object)
gst_mpeg2dec_finalize (GObject * object)
{
GstMpeg2dec *mpeg2dec = GST_MPEG2DEC (object);
@ -296,8 +255,10 @@ gst_mpeg2dec_dispose (GObject * object)
mpeg2_close (mpeg2dec->decoder);
mpeg2dec->decoder = NULL;
}
g_free (mpeg2dec->dummybuf[0]);
mpeg2dec->dummybuf[0] = NULL;
G_OBJECT_CLASS (parent_class)->dispose (object);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
@ -307,8 +268,7 @@ gst_mpeg2dec_reset (GstMpeg2dec * mpeg2dec)
mpeg2dec->format = MPEG2DEC_FORMAT_NONE;
mpeg2dec->width = -1;
mpeg2dec->height = -1;
mpeg2dec->segment_start = 0;
mpeg2dec->segment_end = -1;
gst_segment_init (&mpeg2dec->segment, GST_FORMAT_UNDEFINED);
mpeg2dec->discont_state = MPEG2DEC_DISC_NEW_PICTURE;
mpeg2dec->frame_period = 0;
mpeg2dec->need_sequence = TRUE;
@ -318,6 +278,15 @@ gst_mpeg2dec_reset (GstMpeg2dec * mpeg2dec)
mpeg2_reset (mpeg2dec->decoder, 1);
}
static void
gst_mpeg2dec_qos_reset (GstMpeg2dec * mpeg2dec)
{
GST_OBJECT_LOCK (mpeg2dec);
mpeg2dec->proportion = 1.0;
mpeg2dec->earliest_time = -1;
GST_OBJECT_UNLOCK (mpeg2dec);
}
static void
gst_mpeg2dec_set_index (GstElement * element, GstIndex * index)
{
@ -492,48 +461,19 @@ gst_mpeg2dec_alloc_buffer (GstMpeg2dec * mpeg2dec, gint64 offset,
GstBuffer ** obuf)
{
GstBuffer *outbuf = NULL;
gint size;
guint8 *buf[3], *out = NULL;
guint8 *buf[3];
GstFlowReturn ret = GST_FLOW_OK;
if (mpeg2dec->format == MPEG2DEC_FORMAT_I422) {
size = mpeg2dec->decoded_width * mpeg2dec->decoded_height;
ret = gst_mpeg2dec_alloc_sized_buf (mpeg2dec, mpeg2dec->size, &outbuf);
if (ret != GST_FLOW_OK)
goto no_buffer;
ret = gst_mpeg2dec_alloc_sized_buf (mpeg2dec, size * 2, &outbuf);
if (ret != GST_FLOW_OK)
goto no_buffer;
buf[0] = GST_BUFFER_DATA (outbuf);
buf[1] = buf[0] + mpeg2dec->u_offs;
buf[2] = buf[0] + mpeg2dec->v_offs;
out = GST_BUFFER_DATA (outbuf);
buf[0] = out;
buf[1] = buf[0] + size;
buf[2] = buf[1] + size / 2;
} else {
size = I420_SIZE (mpeg2dec->decoded_width, mpeg2dec->decoded_height);
ret = gst_mpeg2dec_alloc_sized_buf (mpeg2dec, size, &outbuf);
if (ret != GST_FLOW_OK)
goto no_buffer;
out = GST_BUFFER_DATA (outbuf);
if (mpeg2dec->format == MPEG2DEC_FORMAT_I420) {
buf[0] = out +
I420_Y_OFFSET (mpeg2dec->decoded_width, mpeg2dec->decoded_height);
buf[1] = out +
I420_U_OFFSET (mpeg2dec->decoded_width, mpeg2dec->decoded_height);
buf[2] = out +
I420_V_OFFSET (mpeg2dec->decoded_width, mpeg2dec->decoded_height);
} else {
buf[0] = out +
I420_Y_OFFSET (mpeg2dec->decoded_width, mpeg2dec->decoded_height);
buf[1] = out +
I420_V_OFFSET (mpeg2dec->decoded_width, mpeg2dec->decoded_height);
buf[2] = out +
I420_U_OFFSET (mpeg2dec->decoded_width, mpeg2dec->decoded_height);
}
}
GST_DEBUG_OBJECT (mpeg2dec, "set_buf: %p %p %p, outbuf %p",
buf[0], buf[1], buf[2], outbuf);
mpeg2_set_buf (mpeg2dec->decoder, buf, outbuf);
@ -552,6 +492,9 @@ no_buffer:
("Failed to allocate memory for buffer, reason %s",
gst_flow_get_name (ret)));
}
GST_DEBUG_OBJECT (mpeg2dec, "no output buffer, reason %s",
gst_flow_get_name (ret));
mpeg2_set_buf (mpeg2dec->decoder, mpeg2dec->dummybuf, NULL);
*obuf = NULL;
return ret;
}
@ -570,12 +513,27 @@ gst_mpeg2dec_negotiate_format (GstMpeg2dec * mpeg2dec)
if (sequence->width != sequence->chroma_width &&
sequence->height != sequence->chroma_height) {
fourcc = GST_STR_FOURCC ("I420");
mpeg2dec->format = MPEG2DEC_FORMAT_I420;
mpeg2dec->size =
I420_SIZE (mpeg2dec->decoded_width, mpeg2dec->decoded_height);
mpeg2dec->u_offs =
I420_U_OFFSET (mpeg2dec->decoded_width, mpeg2dec->decoded_height);
mpeg2dec->v_offs =
I420_V_OFFSET (mpeg2dec->decoded_width, mpeg2dec->decoded_height);
} else if (sequence->width == sequence->chroma_width ||
sequence->height == sequence->chroma_height) {
gint halfsize;
fourcc = GST_STR_FOURCC ("Y42B");
mpeg2dec->format = MPEG2DEC_FORMAT_I422;
halfsize = mpeg2dec->decoded_width * mpeg2dec->decoded_height;
mpeg2dec->size = halfsize * 2;
mpeg2dec->u_offs = halfsize;
mpeg2dec->v_offs = halfsize + (halfsize / 2);
} else {
g_warning ("mpeg2dec: 4:4:4 format not yet supported");
return (FALSE);
@ -595,13 +553,21 @@ gst_mpeg2dec_negotiate_format (GstMpeg2dec * mpeg2dec)
return TRUE;
}
static void
init_dummybuf (GstMpeg2dec * mpeg2dec)
{
g_free (mpeg2dec->dummybuf[0]);
mpeg2dec->dummybuf[0] = g_malloc (mpeg2dec->size);
mpeg2dec->dummybuf[1] = mpeg2dec->dummybuf[0] + mpeg2dec->u_offs;
mpeg2dec->dummybuf[2] = mpeg2dec->dummybuf[1] + mpeg2dec->v_offs;
}
static GstFlowReturn
handle_sequence (GstMpeg2dec * mpeg2dec, const mpeg2_info_t * info)
{
gint i;
GstBuffer *buf;
GstFlowReturn ret;
guint8 *dummybuf[3] = { NULL, NULL, NULL };
GstFlowReturn ret = GST_FLOW_OK;
mpeg2dec->width = info->sequence->picture_width;
mpeg2dec->height = info->sequence->picture_height;
@ -635,18 +601,14 @@ handle_sequence (GstMpeg2dec * mpeg2dec, const mpeg2_info_t * info)
goto negotiate_failed;
mpeg2_custom_fbuf (mpeg2dec->decoder, 1);
init_dummybuf (mpeg2dec);
/* Pump in some null buffers, because otherwise libmpeg2 doesn't
* initialise the discard_fbuf->id */
mpeg2_set_buf (mpeg2dec->decoder, dummybuf, NULL);
mpeg2_set_buf (mpeg2dec->decoder, dummybuf, NULL);
mpeg2_set_buf (mpeg2dec->decoder, dummybuf, NULL);
ret = gst_mpeg2dec_alloc_buffer (mpeg2dec, mpeg2dec->offset, &buf);
if (ret != GST_FLOW_OK)
goto done;
/* libmpeg2 discards first buffer twice for some reason. */
gst_buffer_ref (buf);
mpeg2_set_buf (mpeg2dec->decoder, mpeg2dec->dummybuf, NULL);
mpeg2_set_buf (mpeg2dec->decoder, mpeg2dec->dummybuf, NULL);
mpeg2_set_buf (mpeg2dec->decoder, mpeg2dec->dummybuf, NULL);
mpeg2dec->need_sequence = FALSE;
@ -665,32 +627,67 @@ static GstFlowReturn
handle_picture (GstMpeg2dec * mpeg2dec, const mpeg2_info_t * info)
{
gboolean key_frame = FALSE;
GstBuffer *outbuf;
GstBuffer *outbuf, **bufpen;
GstMpeg2Buf *mpbuf;
GstFlowReturn ret;
gint type;
GST_DEBUG_OBJECT (mpeg2dec, "handle picture");
if (info->current_picture) {
key_frame =
(info->current_picture->flags & PIC_MASK_CODING_TYPE) ==
PIC_FLAG_CODING_TYPE_I;
}
ret = gst_mpeg2dec_alloc_buffer (mpeg2dec, mpeg2dec->offset, &outbuf);
if (ret != GST_FLOW_OK)
goto done;
goto no_buffer;
if (info->current_picture) {
type = info->current_picture->flags & PIC_MASK_CODING_TYPE;
} else {
type = 0;
}
GST_DEBUG_OBJECT (mpeg2dec, "handle picture type %d", type);
key_frame = type == PIC_FLAG_CODING_TYPE_I;
switch (type) {
case PIC_FLAG_CODING_TYPE_I:
mpeg2_skip (mpeg2dec->decoder, 0);
case PIC_FLAG_CODING_TYPE_P:
mpbuf = &mpeg2dec->ip_buffers[mpeg2dec->ip_bufpos];
bufpen = &mpbuf->buffer;
mpbuf->type = type;
GST_DEBUG_OBJECT (mpeg2dec, "I/P unref %p, ref %p", *bufpen, outbuf);
if (*bufpen)
gst_buffer_unref (*bufpen);
*bufpen = outbuf;
mpeg2dec->ip_bufpos = (mpeg2dec->ip_bufpos + 1) & 3;
break;
case PIC_FLAG_CODING_TYPE_B:
mpbuf = &mpeg2dec->b_buffer;
mpbuf->type = type;
bufpen = &mpbuf->buffer;
GST_DEBUG_OBJECT (mpeg2dec, "B unref %p, ref %p", *bufpen, outbuf);
if (*bufpen)
gst_buffer_unref (*bufpen);
*bufpen = outbuf;
break;
default:
break;
}
GST_DEBUG_OBJECT (mpeg2dec, "picture %s, outbuf %p, offset %"
G_GINT64_FORMAT,
key_frame ? ", kf," : " ", outbuf, GST_BUFFER_OFFSET (outbuf)
);
if (mpeg2dec->discont_state == MPEG2DEC_DISC_NEW_PICTURE && key_frame)
if (mpeg2dec->discont_state == MPEG2DEC_DISC_NEW_PICTURE && key_frame) {
mpeg2dec->discont_state = MPEG2DEC_DISC_NEW_KEYFRAME;
}
mpeg2_skip (mpeg2dec->decoder, 0);
done:
return ret;
no_buffer:
{
return ret;
}
}
static GstFlowReturn
@ -698,119 +695,153 @@ handle_slice (GstMpeg2dec * mpeg2dec, const mpeg2_info_t * info)
{
GstBuffer *outbuf = NULL;
GstFlowReturn ret = GST_FLOW_OK;
const mpeg2_picture_t *picture;
gboolean key_frame = FALSE;
GstClockTime time;
GST_DEBUG_OBJECT (mpeg2dec, "picture slice/end %p %p %p %p",
info->display_fbuf,
info->display_picture, info->current_picture,
(info->display_fbuf ? info->display_fbuf->id : NULL));
if (info->display_fbuf && info->display_fbuf->id) {
const mpeg2_picture_t *picture;
gboolean key_frame = FALSE;
GstClockTime time;
if (!info->display_fbuf || !info->display_fbuf->id)
goto no_display;
outbuf = GST_BUFFER (info->display_fbuf->id);
outbuf = GST_BUFFER (info->display_fbuf->id);
picture = info->display_picture;
picture = info->display_picture;
key_frame =
(picture->flags & PIC_MASK_CODING_TYPE) == PIC_FLAG_CODING_TYPE_I;
key_frame = (picture->flags & PIC_MASK_CODING_TYPE) == PIC_FLAG_CODING_TYPE_I;
GST_DEBUG_OBJECT (mpeg2dec, "picture keyframe %d", key_frame);
GST_DEBUG_OBJECT (mpeg2dec, "picture flags: %d, type: %d, keyframe: %d",
picture->flags, picture->flags & PIC_MASK_CODING_TYPE, key_frame);
if (!key_frame)
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DELTA_UNIT);
else
GST_BUFFER_FLAG_UNSET (outbuf, GST_BUFFER_FLAG_DELTA_UNIT);
if (key_frame) {
GST_BUFFER_FLAG_UNSET (outbuf, GST_BUFFER_FLAG_DELTA_UNIT);
mpeg2_skip (mpeg2dec->decoder, 0);
} else {
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DELTA_UNIT);
}
if (mpeg2dec->discont_state == MPEG2DEC_DISC_NEW_KEYFRAME && key_frame)
mpeg2dec->discont_state = MPEG2DEC_DISC_NONE;
if (mpeg2dec->discont_state == MPEG2DEC_DISC_NEW_KEYFRAME && key_frame)
mpeg2dec->discont_state = MPEG2DEC_DISC_NONE;
time = GST_CLOCK_TIME_NONE;
time = GST_CLOCK_TIME_NONE;
#if MPEG2_RELEASE < MPEG2_VERSION(0,4,0)
if (picture->flags & PIC_FLAG_PTS)
time = MPEG_TIME_TO_GST_TIME (picture->pts);
if (picture->flags & PIC_FLAG_PTS)
time = MPEG_TIME_TO_GST_TIME (picture->pts);
#else
if (picture->flags & PIC_FLAG_TAGS)
time = MPEG_TIME_TO_GST_TIME ((GstClockTime) (picture->
tag2) << 32 | picture->tag);
if (picture->flags & PIC_FLAG_TAGS)
time = MPEG_TIME_TO_GST_TIME ((GstClockTime) (picture->
tag2) << 32 | picture->tag);
#endif
if (time == GST_CLOCK_TIME_NONE) {
time = mpeg2dec->next_time;
GST_DEBUG_OBJECT (mpeg2dec, "picture didn't have pts");
} else {
GST_DEBUG_OBJECT (mpeg2dec,
"picture had pts %" GST_TIME_FORMAT ", we had %"
GST_TIME_FORMAT, GST_TIME_ARGS (time),
GST_TIME_ARGS (mpeg2dec->next_time));
mpeg2dec->next_time = time;
}
GST_BUFFER_TIMESTAMP (outbuf) = time;
/* TODO set correct offset here based on frame number */
if (info->display_picture_2nd) {
GST_BUFFER_DURATION (outbuf) = (picture->nb_fields +
info->display_picture_2nd->nb_fields) * mpeg2dec->frame_period / 2;
} else {
GST_BUFFER_DURATION (outbuf) =
picture->nb_fields * mpeg2dec->frame_period / 2;
}
mpeg2dec->next_time += GST_BUFFER_DURATION (outbuf);
if (time == GST_CLOCK_TIME_NONE) {
time = mpeg2dec->next_time;
GST_DEBUG_OBJECT (mpeg2dec, "picture didn't have pts");
} else {
GST_DEBUG_OBJECT (mpeg2dec,
"picture: %s %s fields:%d off:%" G_GINT64_FORMAT " ts:%"
GST_TIME_FORMAT,
(picture->flags & PIC_FLAG_TOP_FIELD_FIRST ? "tff " : " "),
(picture->flags & PIC_FLAG_PROGRESSIVE_FRAME ? "prog" : " "),
picture->nb_fields, GST_BUFFER_OFFSET (outbuf),
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (outbuf)));
"picture had pts %" GST_TIME_FORMAT ", we had %"
GST_TIME_FORMAT, GST_TIME_ARGS (time),
GST_TIME_ARGS (mpeg2dec->next_time));
mpeg2dec->next_time = time;
}
GST_BUFFER_TIMESTAMP (outbuf) = time;
if (mpeg2dec->index) {
gst_index_add_association (mpeg2dec->index, mpeg2dec->index_id,
(key_frame ? GST_ASSOCIATION_FLAG_KEY_UNIT : 0),
GST_FORMAT_BYTES, GST_BUFFER_OFFSET (outbuf),
GST_FORMAT_TIME, GST_BUFFER_TIMESTAMP (outbuf), 0);
}
/* TODO set correct offset here based on frame number */
if (info->display_picture_2nd) {
GST_BUFFER_DURATION (outbuf) = (picture->nb_fields +
info->display_picture_2nd->nb_fields) * mpeg2dec->frame_period / 2;
} else {
GST_BUFFER_DURATION (outbuf) =
picture->nb_fields * mpeg2dec->frame_period / 2;
}
mpeg2dec->next_time += GST_BUFFER_DURATION (outbuf);
if (picture->flags & PIC_FLAG_SKIP) {
GST_DEBUG_OBJECT (mpeg2dec, "dropping buffer because of skip flag");
} else if (mpeg2dec->discont_state != MPEG2DEC_DISC_NONE) {
GST_DEBUG_OBJECT (mpeg2dec, "dropping buffer, discont state %d",
mpeg2dec->discont_state);
} else if (mpeg2dec->next_time < mpeg2dec->segment_start) {
GST_DEBUG_OBJECT (mpeg2dec, "dropping buffer, next_time %"
GST_TIME_FORMAT " < segment_start %" GST_TIME_FORMAT,
GST_TIME_ARGS (mpeg2dec->next_time),
GST_TIME_ARGS (mpeg2dec->segment_start));
} else {
gboolean cropped_outbuf_different_from_outbuf = FALSE;
GST_DEBUG_OBJECT (mpeg2dec,
"picture: %s %s fields:%d off:%" G_GINT64_FORMAT " ts:%"
GST_TIME_FORMAT,
(picture->flags & PIC_FLAG_TOP_FIELD_FIRST ? "tff " : " "),
(picture->flags & PIC_FLAG_PROGRESSIVE_FRAME ? "prog" : " "),
picture->nb_fields, GST_BUFFER_OFFSET (outbuf),
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (outbuf)));
GST_LOG_OBJECT (mpeg2dec, "pushing buffer, timestamp %"
GST_TIME_FORMAT ", duration %" GST_TIME_FORMAT,
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (outbuf)),
GST_TIME_ARGS (GST_BUFFER_DURATION (outbuf)));
if ((mpeg2dec->decoded_height > mpeg2dec->height) ||
(mpeg2dec->decoded_width > mpeg2dec->width)) {
cropped_outbuf_different_from_outbuf = crop_buffer (mpeg2dec, &outbuf);
}
gst_buffer_ref (outbuf);
ret = gst_pad_push (mpeg2dec->srcpad, outbuf);
if (cropped_outbuf_different_from_outbuf)
gst_buffer_unref (outbuf);
}
if (mpeg2dec->index) {
gst_index_add_association (mpeg2dec->index, mpeg2dec->index_id,
(key_frame ? GST_ASSOCIATION_FLAG_KEY_UNIT : 0),
GST_FORMAT_BYTES, GST_BUFFER_OFFSET (outbuf),
GST_FORMAT_TIME, GST_BUFFER_TIMESTAMP (outbuf), 0);
}
if (info->discard_fbuf && info->discard_fbuf->id) {
GstBuffer *discard = GST_BUFFER (info->discard_fbuf->id);
if (picture->flags & PIC_FLAG_SKIP)
goto skip;
gst_buffer_unref (discard);
GST_DEBUG_OBJECT (mpeg2dec, "Discarded buffer %p", discard);
if (mpeg2dec->discont_state != MPEG2DEC_DISC_NONE)
goto drop;
if (GST_CLOCK_TIME_IS_VALID (time)) {
gboolean need_skip;
GstClockTime qostime;
/* qos needs to be done on running time */
qostime = gst_segment_to_running_time (&mpeg2dec->segment, GST_FORMAT_TIME,
time);
GST_OBJECT_LOCK (mpeg2dec);
/* check for QoS, don't perform the last steps of getting and
* pushing the buffers that are known to be late. */
/* FIXME, we can also entirely skip decoding if the next valid buffer is
* known to be after a keyframe (using the granule_shift) */
need_skip = mpeg2dec->earliest_time != -1
&& qostime <= mpeg2dec->earliest_time;
GST_OBJECT_UNLOCK (mpeg2dec);
if (need_skip)
goto dropping_qos;
}
GST_LOG_OBJECT (mpeg2dec, "pushing buffer %p, timestamp %"
GST_TIME_FORMAT ", duration %" GST_TIME_FORMAT,
outbuf,
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (outbuf)),
GST_TIME_ARGS (GST_BUFFER_DURATION (outbuf)));
if ((mpeg2dec->decoded_height > mpeg2dec->height) ||
(mpeg2dec->decoded_width > mpeg2dec->width)) {
crop_buffer (mpeg2dec, &outbuf);
}
/* ref before pushing it out, so we still have the ref in our
* array of buffers */
gst_buffer_ref (outbuf);
ret = gst_pad_push (mpeg2dec->srcpad, outbuf);
GST_DEBUG_OBJECT (mpeg2dec, "pushed with result %s", gst_flow_get_name (ret));
return ret;
/* special cases */
no_display:
{
GST_DEBUG_OBJECT (mpeg2dec, "no picture to display");
return GST_FLOW_OK;
}
skip:
{
GST_DEBUG_OBJECT (mpeg2dec, "dropping buffer because of skip flag");
return GST_FLOW_OK;
}
drop:
{
GST_DEBUG_OBJECT (mpeg2dec, "dropping buffer, discont state %d",
mpeg2dec->discont_state);
return GST_FLOW_OK;
}
dropping_qos:
{
GST_DEBUG_OBJECT (mpeg2dec, "dropping buffer because of QoS");
return GST_FLOW_OK;
}
}
#if 0
@ -871,6 +902,27 @@ gst_mpeg2dec_chain (GstPad * pad, GstBuffer * buf)
mpeg2dec->offset = GST_BUFFER_OFFSET (buf);
if (pts != GST_CLOCK_TIME_NONE) {
gint64 mpeg_pts = GST_TIME_TO_MPEG_TIME (pts);
GST_DEBUG_OBJECT (mpeg2dec,
"have pts: %" G_GINT64_FORMAT " (%" GST_TIME_FORMAT ")",
mpeg_pts, GST_TIME_ARGS (MPEG_TIME_TO_GST_TIME (mpeg_pts)));
#if MPEG2_RELEASE >= MPEG2_VERSION(0,4,0)
mpeg2_tag_picture (mpeg2dec->decoder, mpeg_pts & 0xffffffff,
mpeg_pts >> 32);
#else
mpeg2_pts (mpeg2dec->decoder, mpeg_pts);
#endif
} else {
GST_LOG ("no pts");
}
GST_LOG_OBJECT (mpeg2dec, "calling mpeg2_buffer");
mpeg2_buffer (mpeg2dec->decoder, data, end);
GST_LOG_OBJECT (mpeg2dec, "calling mpeg2_buffer done");
while (!done) {
GST_LOG_OBJECT (mpeg2dec, "calling parse");
state = mpeg2_parse (mpeg2dec->decoder);
@ -884,6 +936,7 @@ gst_mpeg2dec_chain (GstPad * pad, GstBuffer * buf)
GST_DEBUG_OBJECT (mpeg2dec, "sequence repeated");
break;
case STATE_GOP:
GST_DEBUG_OBJECT (mpeg2dec, "gop");
break;
case STATE_PICTURE:
ret = handle_picture (mpeg2dec, info);
@ -897,39 +950,16 @@ gst_mpeg2dec_chain (GstPad * pad, GstBuffer * buf)
break;
#if MPEG2_RELEASE >= MPEG2_VERSION (0, 4, 0)
case STATE_INVALID_END:
GST_DEBUG_OBJECT (mpeg2dec, "invalid end");
#endif
case STATE_END:
GST_DEBUG_OBJECT (mpeg2dec, "end");
mpeg2dec->need_sequence = TRUE;
case STATE_SLICE:
ret = handle_slice (mpeg2dec, info);
break;
case STATE_BUFFER:
if (data == NULL) {
done = TRUE;
} else {
if (pts != GST_CLOCK_TIME_NONE) {
gint64 mpeg_pts = GST_TIME_TO_MPEG_TIME (pts);
GST_DEBUG_OBJECT (mpeg2dec,
"have pts: %" G_GINT64_FORMAT " (%" GST_TIME_FORMAT ")",
mpeg_pts, GST_TIME_ARGS (MPEG_TIME_TO_GST_TIME (mpeg_pts)));
#if MPEG2_RELEASE >= MPEG2_VERSION(0,4,0)
mpeg2_tag_picture (mpeg2dec->decoder, mpeg_pts & 0xffffffff,
mpeg_pts >> 32);
#else
mpeg2_pts (mpeg2dec->decoder, mpeg_pts);
#endif
} else {
GST_LOG ("no pts");
}
GST_LOG_OBJECT (mpeg2dec, "calling mpeg2_buffer");
mpeg2_buffer (mpeg2dec->decoder, data, end);
GST_LOG_OBJECT (mpeg2dec, "calling mpeg2_buffer done");
data = NULL;
}
done = TRUE;
break;
/* error */
case STATE_INVALID:
@ -962,76 +992,107 @@ gst_mpeg2dec_chain (GstPad * pad, GstBuffer * buf)
#endif
if (ret != GST_FLOW_OK) {
mpeg2_reset (mpeg2dec->decoder, 0);
GST_DEBUG_OBJECT (mpeg2dec, "exit loop, reason %s",
gst_flow_get_name (ret));
break;
}
}
done:
gst_buffer_unref (buf);
return ret;
/* errors */
exit:
gst_buffer_unref (buf);
return GST_FLOW_OK;
{
ret = GST_FLOW_OK;
goto done;
}
exit_error:
GST_ELEMENT_ERROR (mpeg2dec, STREAM, DECODE, (NULL), (NULL));
gst_buffer_unref (buf);
return GST_FLOW_ERROR;
{
GST_ELEMENT_ERROR (mpeg2dec, STREAM, DECODE, (NULL), (NULL));
ret = GST_FLOW_ERROR;
goto done;
}
}
static gboolean
gst_mpeg2dec_sink_event (GstPad * pad, GstEvent * event)
{
GstMpeg2dec *mpeg2dec = GST_MPEG2DEC (GST_PAD_PARENT (pad));
GstMpeg2dec *mpeg2dec;
gboolean ret = TRUE;
mpeg2dec = GST_MPEG2DEC (gst_pad_get_parent (pad));
GST_DEBUG_OBJECT (mpeg2dec, "Got %s event on sink pad",
GST_EVENT_TYPE_NAME (event));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_NEWSEGMENT:
{
mpeg2dec->next_time = -1;;
ret = gst_pad_event_default (pad, event);
gboolean update;
GstFormat format;
gdouble rate, arate;
gint64 start, stop, time;
gst_event_parse_new_segment_full (event, &update, &rate, &arate, &format,
&start, &stop, &time);
/* we need TIME and a positive rate */
if (format != GST_FORMAT_TIME)
goto newseg_wrong_format;
if (rate <= 0.0)
goto newseg_wrong_rate;
/* now configure the values */
gst_segment_set_newsegment_full (&mpeg2dec->segment, update,
rate, arate, format, start, stop, time);
ret = gst_pad_push_event (mpeg2dec->srcpad, event);
break;
}
case GST_EVENT_FLUSH_START:
ret = gst_pad_event_default (pad, event);
ret = gst_pad_push_event (mpeg2dec->srcpad, event);
break;
case GST_EVENT_FLUSH_STOP:
{
mpeg2dec->discont_state = MPEG2DEC_DISC_NEW_PICTURE;
mpeg2dec->next_time = -1;;
gst_mpeg2dec_qos_reset (mpeg2dec);
mpeg2_reset (mpeg2dec->decoder, 0);
ret = gst_pad_event_default (pad, event);
mpeg2_skip (mpeg2dec->decoder, 1);
ret = gst_pad_push_event (mpeg2dec->srcpad, event);
break;
}
case GST_EVENT_EOS:
if (mpeg2dec->index && mpeg2dec->closed) {
gst_index_commit (mpeg2dec->index, mpeg2dec->index_id);
}
ret = gst_pad_event_default (pad, event);
ret = gst_pad_push_event (mpeg2dec->srcpad, event);
break;
default:
ret = gst_pad_event_default (pad, event);
ret = gst_pad_push_event (mpeg2dec->srcpad, event);
break;
}
done:
gst_object_unref (mpeg2dec);
return ret;
}
static GstCaps *
gst_mpeg2dec_src_getcaps (GstPad * pad)
{
GstCaps *caps;
GST_OBJECT_LOCK (pad);
if (!(caps = GST_PAD_CAPS (pad)))
caps = (GstCaps *) gst_pad_get_pad_template_caps (pad);
caps = gst_caps_ref (caps);
GST_OBJECT_UNLOCK (pad);
return caps;
/* ERRORS */
newseg_wrong_format:
{
GST_DEBUG_OBJECT (mpeg2dec, "received non TIME newsegment");
gst_event_unref (event);
goto done;
}
newseg_wrong_rate:
{
GST_DEBUG_OBJECT (mpeg2dec, "negative rates not supported yet");
gst_event_unref (event);
goto done;
}
}
static gboolean
@ -1420,7 +1481,7 @@ gst_mpeg2dec_src_event (GstPad * pad, GstEvent * event)
/* the all-formats seek logic */
case GST_EVENT_SEEK:{
gst_event_ref (event);
if (!(res = gst_pad_event_default (pad, event))) {
if (!(res = gst_pad_push_event (mpeg2dec->sinkpad, event))) {
if (mpeg2dec->index)
res = index_seek (pad, event);
else
@ -1429,6 +1490,26 @@ gst_mpeg2dec_src_event (GstPad * pad, GstEvent * event)
gst_event_unref (event);
break;
}
case GST_EVENT_QOS:
{
gdouble proportion;
GstClockTimeDiff diff;
GstClockTime timestamp;
gst_event_parse_qos (event, &proportion, &diff, &timestamp);
GST_OBJECT_LOCK (mpeg2dec);
mpeg2dec->proportion = proportion;
mpeg2dec->earliest_time = timestamp + diff;
GST_OBJECT_UNLOCK (mpeg2dec);
GST_DEBUG_OBJECT (mpeg2dec,
"got QoS %" GST_TIME_FORMAT ", %" G_GINT64_FORMAT,
GST_TIME_ARGS (timestamp), diff);
res = gst_pad_push_event (mpeg2dec->sinkpad, event);
break;
}
case GST_EVENT_NAVIGATION:
/* Forward a navigation event unchanged */
default:
@ -1460,6 +1541,7 @@ gst_mpeg2dec_change_state (GstElement * element, GstStateChange transition)
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_mpeg2dec_reset (mpeg2dec);
gst_mpeg2dec_qos_reset (mpeg2dec);
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
default:
@ -1472,6 +1554,7 @@ gst_mpeg2dec_change_state (GstElement * element, GstStateChange transition)
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_mpeg2dec_qos_reset (mpeg2dec);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
if (mpeg2dec->decoder) {

27
ext/mpeg2dec/gstmpeg2dec.h
View file

@ -41,8 +41,6 @@ G_BEGIN_DECLS
#define MPEG_TIME_TO_GST_TIME(time) (((time) * (GST_MSECOND/10)) / 9LL)
#define GST_TIME_TO_MPEG_TIME(time) (((time) * 9LL) / (GST_MSECOND/10))
#define GST_MPEG2DEC_NUM_BUFS 6
typedef struct _GstMpeg2dec GstMpeg2dec;
typedef struct _GstMpeg2decClass GstMpeg2decClass;
@ -61,6 +59,11 @@ typedef enum
MPEG2DEC_DISC_NEW_KEYFRAME
} DiscontState;
typedef struct {
gint type;
GstBuffer *buffer;
} GstMpeg2Buf;
struct _GstMpeg2dec {
GstElement element;
@ -75,14 +78,16 @@ struct _GstMpeg2dec {
gboolean closed;
gboolean have_fbuf;
GstBuffer *buffers[GST_MPEG2DEC_NUM_BUFS];
/* buffer management */
guint ip_bufpos;
GstMpeg2Buf ip_buffers[4];
GstMpeg2Buf b_buffer;
DiscontState discont_state;
/* the timestamp of the next frame */
GstClockTime next_time;
gint64 segment_start;
gint64 segment_end;
GstSegment segment;
/* video state */
Mpeg2decFormat format;
@ -95,18 +100,26 @@ struct _GstMpeg2dec {
gint frame_rate_code;
gint64 total_frames;
gint64 frame_period;
gint size;
gint u_offs;
gint v_offs;
guint8 *dummybuf[3];
guint64 offset;
gint fps_n;
gint fps_d;
gboolean need_sequence;
GstEvent *pending_event;
GstIndex *index;
gint index_id;
gint error_count;
/* QoS stuff */ /* with LOCK*/
gdouble proportion;
GstClockTime earliest_time;
};
struct _GstMpeg2decClass {