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dvdlpcmdec: port to 0.11

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This commit is contained in:
Wim Taymans 2011-09-27 20:32:46 +02:00
parent f068674a4d
commit 43a6c74eca
2 changed files with 143 additions and 131 deletions
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267
gst/dvdlpcmdec/gstdvdlpcmdec.c
View file

@ -49,12 +49,10 @@ static GstStaticPadTemplate gst_dvdlpcmdec_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-int, "
"width = (int) { 16, 24 }, "
GST_STATIC_CAPS ("audio/x-raw, "
"format = (string) { S16BE, S24BE }, "
"rate = (int) { 32000, 44100, 48000, 96000 }, "
"channels = (int) [ 1, 8 ], "
"endianness = (int) { BIG_ENDIAN }, "
"depth = (int) { 16, 24 }, " "signed = (boolean) { true }")
"channels = (int) [ 1, 8 ]")
);
/* DvdLpcmDec signals and args */
@ -141,10 +139,7 @@ gst_dvdlpcmdec_class_init (GstDvdLpcmDecClass * klass)
static void
gst_dvdlpcm_reset (GstDvdLpcmDec * dvdlpcmdec)
{
dvdlpcmdec->rate = 0;
dvdlpcmdec->channels = 0;
dvdlpcmdec->width = 0;
dvdlpcmdec->out_width = 0;
gst_audio_info_init (&dvdlpcmdec->info);
dvdlpcmdec->dynamic_range = 0;
dvdlpcmdec->emphasis = FALSE;
dvdlpcmdec->mute = FALSE;
@ -160,7 +155,6 @@ gst_dvdlpcmdec_init (GstDvdLpcmDec * dvdlpcmdec)
{
dvdlpcmdec->sinkpad =
gst_pad_new_from_static_template (&gst_dvdlpcmdec_sink_template, "sink");
gst_pad_set_setcaps_function (dvdlpcmdec->sinkpad, gst_dvdlpcmdec_setcaps);
gst_pad_set_event_function (dvdlpcmdec->sinkpad, dvdlpcmdec_sink_event);
gst_element_add_pad (GST_ELEMENT (dvdlpcmdec), dvdlpcmdec->sinkpad);
@ -175,7 +169,7 @@ gst_dvdlpcmdec_init (GstDvdLpcmDec * dvdlpcmdec)
static GstAudioChannelPosition *
get_audio_channel_positions (GstDvdLpcmDec * dvdlpcmdec)
{
gint n_channels = dvdlpcmdec->channels;
gint n_channels = GST_AUDIO_INFO_CHANNELS (&dvdlpcmdec->info);
GstAudioChannelPosition *ret = g_new (GstAudioChannelPosition, n_channels);
/* FIXME: The channel layouts for 5.1 and 7.1 are just guesses, I can't
@ -217,8 +211,13 @@ static void
gst_dvdlpcmdec_send_tags (GstDvdLpcmDec * dvdlpcmdec)
{
GstTagList *taglist;
guint bitrate = dvdlpcmdec->channels * dvdlpcmdec->out_width *
dvdlpcmdec->rate;
guint bitrate;
gint bpf, rate;
bpf = GST_AUDIO_INFO_BPF (&dvdlpcmdec->info);
rate = GST_AUDIO_INFO_RATE (&dvdlpcmdec->info);
bitrate = bpf * 8 * rate;
taglist = gst_tag_list_new ();
@ -237,13 +236,7 @@ gst_dvdlpcmdec_set_outcaps (GstDvdLpcmDec * dvdlpcmdec)
GstAudioChannelPosition *pos;
/* Build caps to set on the src pad, which we know from the incoming caps */
src_caps = gst_caps_new_simple ("audio/x-raw-int",
"rate", G_TYPE_INT, dvdlpcmdec->rate,
"channels", G_TYPE_INT, dvdlpcmdec->channels,
"endianness", G_TYPE_INT, G_BIG_ENDIAN,
"depth", G_TYPE_INT, dvdlpcmdec->out_width,
"width", G_TYPE_INT, dvdlpcmdec->out_width,
"signed", G_TYPE_BOOLEAN, TRUE, NULL);
src_caps = gst_audio_info_to_caps (&dvdlpcmdec->info);
pos = get_audio_channel_positions (dvdlpcmdec);
if (pos) {
@ -251,10 +244,6 @@ gst_dvdlpcmdec_set_outcaps (GstDvdLpcmDec * dvdlpcmdec)
g_free (pos);
}
GST_DEBUG_OBJECT (dvdlpcmdec, "Set rate %d, channels %d, width %d (out %d)",
dvdlpcmdec->rate, dvdlpcmdec->channels, dvdlpcmdec->width,
dvdlpcmdec->out_width);
res = gst_pad_set_caps (dvdlpcmdec->srcpad, src_caps);
if (res) {
GST_DEBUG_OBJECT (dvdlpcmdec, "Successfully set output caps: %"
@ -277,6 +266,8 @@ gst_dvdlpcmdec_setcaps (GstPad * pad, GstCaps * caps)
GstStructure *structure;
gboolean res = TRUE;
GstDvdLpcmDec *dvdlpcmdec;
GstAudioFormat format;
gint rate, channels, width;
g_return_val_if_fail (caps != NULL, FALSE);
g_return_val_if_fail (pad != NULL, FALSE);
@ -294,9 +285,9 @@ gst_dvdlpcmdec_setcaps (GstPad * pad, GstCaps * caps)
gst_pad_set_chain_function (dvdlpcmdec->sinkpad, gst_dvdlpcmdec_chain_raw);
res &= gst_structure_get_int (structure, "rate", &dvdlpcmdec->rate);
res &= gst_structure_get_int (structure, "channels", &dvdlpcmdec->channels);
res &= gst_structure_get_int (structure, "width", &dvdlpcmdec->width);
res &= gst_structure_get_int (structure, "rate", &rate);
res &= gst_structure_get_int (structure, "channels", &channels);
res &= gst_structure_get_int (structure, "width", &width);
res &= gst_structure_get_int (structure, "dynamic_range",
&dvdlpcmdec->dynamic_range);
res &= gst_structure_get_boolean (structure, "emphasis",
@ -306,11 +297,20 @@ gst_dvdlpcmdec_setcaps (GstPad * pad, GstCaps * caps)
if (!res)
goto caps_parse_error;
/* Output width is the input width rounded up to the nearest byte */
if (dvdlpcmdec->width == 20)
dvdlpcmdec->out_width = 24;
else
dvdlpcmdec->out_width = dvdlpcmdec->width;
switch (width) {
case 24:
case 20:
format = GST_AUDIO_FORMAT_S24BE;
break;
case 16:
format = GST_AUDIO_FORMAT_S16BE;
break;
default:
format = GST_AUDIO_FORMAT_UNKNOWN;
break;
}
gst_audio_info_set_format (&dvdlpcmdec->info, format, rate, channels);
dvdlpcmdec->width = width;
res = gst_dvdlpcmdec_set_outcaps (dvdlpcmdec);
@ -331,13 +331,15 @@ static void
update_timestamps (GstDvdLpcmDec * dvdlpcmdec, GstBuffer * buf, int samples)
{
gboolean take_buf_ts = FALSE;
gint rate;
GST_BUFFER_DURATION (buf) =
gst_util_uint64_scale (samples, GST_SECOND, dvdlpcmdec->rate);
rate = GST_AUDIO_INFO_RATE (&dvdlpcmdec->info);
GST_BUFFER_DURATION (buf) = gst_util_uint64_scale (samples, GST_SECOND, rate);
if (GST_BUFFER_TIMESTAMP_IS_VALID (buf)) {
if (GST_CLOCK_TIME_IS_VALID (dvdlpcmdec->timestamp)) {
GstClockTimeDiff one_sample = GST_SECOND / dvdlpcmdec->rate;
GstClockTimeDiff one_sample = GST_SECOND / rate;
GstClockTimeDiff diff = GST_CLOCK_DIFF (GST_BUFFER_TIMESTAMP (buf),
dvdlpcmdec->timestamp);
@ -366,6 +368,9 @@ update_timestamps (GstDvdLpcmDec * dvdlpcmdec, GstBuffer * buf, int samples)
static void
parse_header (GstDvdLpcmDec * dec, guint32 header)
{
GstAudioFormat format;
gint rate, channels;
/* We don't actually use 'dynamic range', 'mute', or 'emphasis' currently,
* but parse them out */
dec->dynamic_range = header & 0xff;
@ -376,37 +381,41 @@ parse_header (GstDvdLpcmDec * dec, guint32 header)
/* These two bits tell us the bit depth */
switch (header & 0xC000) {
case 0x8000:
dec->width = 24;
dec->out_width = 24;
/* 24 bits in 3 bytes */
format = GST_AUDIO_FORMAT_S24BE;
break;
case 0x4000:
dec->width = 20;
dec->out_width = 24;
/* 20 bits in 3 bytes */
format = GST_AUDIO_FORMAT_S24BE;
break;
default:
dec->width = 16;
dec->out_width = 16;
format = GST_AUDIO_FORMAT_S16BE;
break;
}
/* Only four sample rates supported */
switch (header & 0x3000) {
case 0x0000:
dec->rate = 48000;
rate = 48000;
break;
case 0x1000:
dec->rate = 96000;
rate = 96000;
break;
case 0x2000:
dec->rate = 44100;
rate = 44100;
break;
case 0x3000:
dec->rate = 32000;
rate = 32000;
break;
default:
rate = 0;
break;
}
/* And, of course, the number of channels (up to 8) */
dec->channels = ((header >> 8) & 0x7) + 1;
channels = ((header >> 8) & 0x7) + 1;
gst_audio_info_set_format (&dec->info, format, rate, channels);
}
static GstFlowReturn
@ -414,26 +423,20 @@ gst_dvdlpcmdec_chain_dvd (GstPad * pad, GstBuffer * buf)
{
GstDvdLpcmDec *dvdlpcmdec;
guint8 *data;
guint size;
gsize size;
guint first_access;
guint32 header;
GstBuffer *subbuf;
GstFlowReturn ret = GST_FLOW_OK;
gint off, len;
gint rate, channels;
dvdlpcmdec = GST_DVDLPCMDEC (gst_pad_get_parent (pad));
size = GST_BUFFER_SIZE (buf);
data = GST_BUFFER_DATA (buf);
data = gst_buffer_map (buf, &size, NULL, GST_MAP_READ);
if (size < 5) {
/* Buffer is too small */
GST_ELEMENT_WARNING (dvdlpcmdec, STREAM, DECODE,
("Invalid data found parsing LPCM packet"),
("LPCM packet was too small. Dropping"));
ret = GST_FLOW_OK;
goto done;
}
if (size < 5)
goto too_small;
/* We have a 5 byte header, now.
* The first two bytes are a (big endian) 16 bit offset into our buffer.
@ -443,13 +446,8 @@ gst_dvdlpcmdec_chain_dvd (GstPad * pad, GstBuffer * buf)
* encoded.
*/
first_access = (data[0] << 8) | data[1];
if (first_access > size) {
GST_ELEMENT_WARNING (dvdlpcmdec, STREAM, DECODE,
("Invalid data found parsing LPCM packet"),
("LPCM packet contained invalid first access. Dropping"));
ret = GST_FLOW_OK;
goto done;
}
if (first_access > size)
goto invalid_data;
/* Don't keep the 'frame number' low 5 bits of the first byte */
header = ((data[2] & 0xC0) << 16) | (data[3] << 8) | data[4];
@ -467,6 +465,9 @@ gst_dvdlpcmdec_chain_dvd (GstPad * pad, GstBuffer * buf)
GST_LOG_OBJECT (dvdlpcmdec, "first_access %d, buffer length %d", first_access,
size);
rate = GST_AUDIO_INFO_RATE (&dvdlpcmdec->info);
channels = GST_AUDIO_INFO_CHANNELS (&dvdlpcmdec->info);
/* After first_access, we have an additional 3 bytes of data we've parsed and
* don't want to handle; this is included within the value of first_access.
* So a first_access value of between 1 and 3 is just broken, we treat that
@ -487,16 +488,10 @@ gst_dvdlpcmdec_chain_dvd (GstPad * pad, GstBuffer * buf)
off, len);
/* see if we need a subbuffer without timestamp */
if (off + len > size) {
GST_WARNING_OBJECT (pad, "Bad first_access parameter in buffer");
GST_ELEMENT_ERROR (dvdlpcmdec, STREAM, DECODE,
(NULL),
("first_access parameter out of range: bad buffer from demuxer"));
ret = GST_FLOW_ERROR;
goto done;
}
if (off + len > size)
goto bad_first_access;
subbuf = gst_buffer_create_sub (buf, off, len);
subbuf = gst_buffer_copy_region (buf, GST_BUFFER_COPY_ALL, off, len);
/* If we don't have a stored timestamp from the last packet,
* (it's straight after a new-segment, but we have one on the
@ -506,18 +501,18 @@ gst_dvdlpcmdec_chain_dvd (GstPad * pad, GstBuffer * buf)
GST_BUFFER_TIMESTAMP_IS_VALID (buf)) {
switch (dvdlpcmdec->width) {
case 16:
samples = len / dvdlpcmdec->channels / 2;
samples = len / channels / 2;
break;
case 20:
samples = (len / dvdlpcmdec->channels) * 2 / 5;
samples = (len / channels) * 2 / 5;
break;
case 24:
samples = len / dvdlpcmdec->channels / 3;
samples = len / channels / 3;
break;
}
}
if (samples != 0) {
ts = gst_util_uint64_scale (samples, GST_SECOND, dvdlpcmdec->rate);
ts = gst_util_uint64_scale (samples, GST_SECOND, rate);
if (ts < GST_BUFFER_TIMESTAMP (buf))
GST_BUFFER_TIMESTAMP (subbuf) = GST_BUFFER_TIMESTAMP (buf) - ts;
else
@ -538,7 +533,7 @@ gst_dvdlpcmdec_chain_dvd (GstPad * pad, GstBuffer * buf)
len);
if (len > 0) {
subbuf = gst_buffer_create_sub (buf, off, len);
subbuf = gst_buffer_copy_region (buf, GST_BUFFER_COPY_ALL, off, len);
GST_BUFFER_TIMESTAMP (subbuf) = GST_BUFFER_TIMESTAMP (buf);
ret = gst_dvdlpcmdec_chain_raw (pad, subbuf);
@ -546,18 +541,36 @@ gst_dvdlpcmdec_chain_dvd (GstPad * pad, GstBuffer * buf)
} else {
GST_LOG_OBJECT (dvdlpcmdec, "Creating single sub-buffer off %d, len %d",
off, size - off);
subbuf = gst_buffer_create_sub (buf, off, size - off);
subbuf = gst_buffer_copy_region (buf, GST_BUFFER_COPY_ALL, off, size - off);
GST_BUFFER_TIMESTAMP (subbuf) = GST_BUFFER_TIMESTAMP (buf);
ret = gst_dvdlpcmdec_chain_raw (pad, subbuf);
}
done:
gst_buffer_unmap (buf, data, size);
gst_buffer_unref (buf);
gst_object_unref (dvdlpcmdec);
return ret;
/* ERRORS */
too_small:
{
/* Buffer is too small */
GST_ELEMENT_WARNING (dvdlpcmdec, STREAM, DECODE,
("Invalid data found parsing LPCM packet"),
("LPCM packet was too small. Dropping"));
ret = GST_FLOW_OK;
goto done;
}
invalid_data:
{
GST_ELEMENT_WARNING (dvdlpcmdec, STREAM, DECODE,
("Invalid data found parsing LPCM packet"),
("LPCM packet contained invalid first access. Dropping"));
ret = GST_FLOW_OK;
goto done;
}
negotiation_failed:
{
GST_ELEMENT_ERROR (dvdlpcmdec, STREAM, FORMAT, (NULL),
@ -565,27 +578,38 @@ negotiation_failed:
ret = GST_FLOW_NOT_NEGOTIATED;
goto done;
}
bad_first_access:
{
GST_WARNING_OBJECT (pad, "Bad first_access parameter in buffer");
GST_ELEMENT_ERROR (dvdlpcmdec, STREAM, DECODE,
(NULL),
("first_access parameter out of range: bad buffer from demuxer"));
ret = GST_FLOW_ERROR;
goto done;
}
}
static GstFlowReturn
gst_dvdlpcmdec_chain_raw (GstPad * pad, GstBuffer * buf)
{
GstDvdLpcmDec *dvdlpcmdec;
guint8 *data;
guint size;
gsize size;
GstFlowReturn ret;
guint samples = 0;
gint rate, channels;
dvdlpcmdec = GST_DVDLPCMDEC (gst_pad_get_parent (pad));
size = GST_BUFFER_SIZE (buf);
data = GST_BUFFER_DATA (buf);
size = gst_buffer_get_size (buf);
GST_LOG_OBJECT (dvdlpcmdec,
"got buffer %p of size %d with ts %" GST_TIME_FORMAT,
buf, size, GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
if (dvdlpcmdec->rate == 0)
rate = GST_AUDIO_INFO_RATE (&dvdlpcmdec->info);
channels = GST_AUDIO_INFO_CHANNELS (&dvdlpcmdec->info);
if (rate == 0)
goto not_negotiated;
if (GST_BUFFER_TIMESTAMP_IS_VALID (buf))
@ -598,10 +622,10 @@ gst_dvdlpcmdec_chain_raw (GstPad * pad, GstBuffer * buf)
{
/* We can just pass 16-bits straight through intact, once we set
* appropriate things on the buffer */
samples = size / dvdlpcmdec->channels / 2;
samples = size / channels / 2;
if (samples < 1)
goto drop;
buf = gst_buffer_make_metadata_writable (buf);
buf = gst_buffer_make_writable (buf);
break;
}
case 20:
@ -610,27 +634,21 @@ gst_dvdlpcmdec_chain_raw (GstPad * pad, GstBuffer * buf)
gint64 samples = size * 8 / 20;
gint64 count = size / 10;
gint64 i;
guint8 *src;
guint8 *dest;
guint8 *src, *osrc;
guint8 *dest, *odest;
GstBuffer *outbuf;
GstCaps *bufcaps = GST_PAD_CAPS (dvdlpcmdec->srcpad);
if (samples < 1)
goto drop;
ret = gst_pad_alloc_buffer_and_set_caps (dvdlpcmdec->srcpad, 0,
samples * 3, bufcaps, &outbuf);
if (ret != GST_FLOW_OK)
goto buffer_alloc_failed;
gst_buffer_copy_metadata (outbuf, buf, GST_BUFFER_COPY_TIMESTAMPS);
outbuf = gst_buffer_new_allocate (NULL, samples * 3, 0);
gst_buffer_copy_into (outbuf, buf, GST_BUFFER_COPY_TIMESTAMPS, 0, -1);
/* adjust samples so we can calc the new timestamp */
samples = samples / dvdlpcmdec->channels;
samples = samples / channels;
src = data;
dest = GST_BUFFER_DATA (outbuf);
src = osrc = gst_buffer_map (buf, NULL, NULL, GST_MAP_READ);
dest = odest = gst_buffer_map (outbuf, NULL, NULL, GST_MAP_WRITE);
/* Copy 20-bit LPCM format to 24-bit buffers, with 0x00 in the lowest
* nibble. Note that the first 2 bytes are already correct */
@ -651,7 +669,8 @@ gst_dvdlpcmdec_chain_raw (GstPad * pad, GstBuffer * buf)
src += 10;
dest += 12;
}
gst_buffer_unmap (outbuf, odest, -1);
gst_buffer_unmap (buf, osrc, -1);
gst_buffer_unref (buf);
buf = outbuf;
break;
@ -662,9 +681,9 @@ gst_dvdlpcmdec_chain_raw (GstPad * pad, GstBuffer * buf)
* and last byte are already correct */
guint count = size / 12;
gint i;
guint8 *src;
guint8 *src, *osrc;
samples = size / dvdlpcmdec->channels / 3;
samples = size / channels / 3;
if (samples < 1)
goto drop;
@ -672,7 +691,8 @@ gst_dvdlpcmdec_chain_raw (GstPad * pad, GstBuffer * buf)
/* Ensure our output buffer is writable */
buf = gst_buffer_make_writable (buf);
src = GST_BUFFER_DATA (buf);
src = osrc = gst_buffer_map (buf, NULL, NULL, GST_MAP_READWRITE);
for (i = 0; i < count; i++) {
guint8 tmp;
@ -689,14 +709,13 @@ gst_dvdlpcmdec_chain_raw (GstPad * pad, GstBuffer * buf)
src += 12;
}
gst_buffer_unmap (buf, osrc, -1);
break;
}
default:
goto invalid_width;
}
/* Set appropriate caps on it to pass downstream */
gst_buffer_set_caps (buf, GST_PAD_CAPS (dvdlpcmdec->srcpad));
update_timestamps (dvdlpcmdec, buf, samples);
ret = gst_pad_push (dvdlpcmdec->srcpad, buf);
@ -710,7 +729,7 @@ done:
drop:
{
GST_DEBUG_OBJECT (dvdlpcmdec, "Buffer of size %u is too small. Dropping",
GST_BUFFER_SIZE (buf));
size);
gst_buffer_unref (buf);
ret = GST_FLOW_OK;
goto done;
@ -723,13 +742,6 @@ not_negotiated:
ret = GST_FLOW_NOT_NEGOTIATED;
goto done;
}
buffer_alloc_failed:
{
GST_ELEMENT_ERROR (dvdlpcmdec, RESOURCE, FAILED, (NULL),
("Buffer allocation failed"));
gst_buffer_unref (buf);
goto done;
}
invalid_width:
{
GST_ELEMENT_ERROR (dvdlpcmdec, STREAM, WRONG_TYPE, (NULL),
@ -749,25 +761,26 @@ dvdlpcmdec_sink_event (GstPad * pad, GstEvent * event)
dvdlpcmdec = GST_DVDLPCMDEC (GST_PAD_PARENT (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_NEWSEGMENT:
case GST_EVENT_CAPS:
{
gdouble rate, arate;
GstFormat format;
gboolean update;
gint64 start, stop, pos;
GstCaps *caps;
gst_event_parse_new_segment_full (event, &update, &rate, &arate,
&format, &start, &stop, &pos);
gst_event_parse_caps (event, &caps);
res = gst_dvdlpcmdec_setcaps (pad, caps);
gst_event_unref (event);
break;
}
case GST_EVENT_SEGMENT:
{
GstSegment seg;
GST_DEBUG_OBJECT (dvdlpcmdec,
"new segment, format=%d, start = %" G_GINT64_FORMAT
", stop = %" G_GINT64_FORMAT ", position %" G_GINT64_FORMAT,
format, start, stop, pos);
gst_event_copy_segment (event, &seg);
gst_segment_set_newsegment_full (&dvdlpcmdec->segment, update,
rate, arate, format, start, stop, pos);
GST_DEBUG_OBJECT (dvdlpcmdec, "segment %" GST_SEGMENT_FORMAT, &seg);
if (format == GST_FORMAT_TIME) {
dvdlpcmdec->segment = seg;
if (seg.format == GST_FORMAT_TIME) {
dvdlpcmdec->timestamp = GST_CLOCK_TIME_NONE;
} else {
dvdlpcmdec->timestamp = 0;

7
gst/dvdlpcmdec/gstdvdlpcmdec.h
View file

@ -22,6 +22,7 @@
#define __GST_DVDLPCMDEC_H__
#include <gst/gst.h>
#include <gst/audio/audio.h>
G_BEGIN_DECLS
@ -46,14 +47,12 @@ struct _GstDvdLpcmDec {
guint32 header;
gint rate;
gint channels;
GstAudioInfo info;
gint width;
gint out_width;
gint dynamic_range;
gint emphasis;
gint mute;
GstClockTime timestamp;
GstSegment segment;
};