ImageDescription *
image_description_from_codec_data (GstBuffer * buf, guint32 codectype)
{
ImageDescription *desc = NULL;
GST_LOG ("codectype:%" GST_FOURCC_FORMAT " buf:%p",
GST_FOURCC_ARGS (codectype), buf);
if ((GST_BUFFER_SIZE (buf) == GST_READ_UINT32_BE (GST_BUFFER_DATA (buf))) &&
(QT_MAKE_FOURCC_LE ('s', 't', 's',
'd') == GST_READ_UINT32_BE (GST_BUFFER_DATA (buf) + 4))) {
/* We have the full stsd (ImageDescription) in our codec_data */
desc = image_description_from_stsd_buffer (buf);
} else {
switch (codectype) {
case QT_MAKE_FOURCC_LE ('m', 'p', '4', 'v'):
desc = image_description_for_mp4v (buf);
break;
case QT_MAKE_FOURCC_LE ('a', 'v', 'c', '1'):
desc = image_description_for_avc1 (buf);
break;
default:
GST_WARNING ("Format not handled !");
}
}
return desc;
}
static gboolean
write_one (GstPluginLoader * l)
{
guint8 *out;
guint32 to_write, magic;
int res;
if (l->tx_buf_read + HEADER_SIZE > l->tx_buf_write)
return FALSE;
out = l->tx_buf + l->tx_buf_read;
magic = GST_READ_UINT32_BE (out + 8);
if (magic != HEADER_MAGIC) {
GST_ERROR ("Packet magic number is missing. Memory corruption detected");
goto fail_and_cleanup;
}
to_write = GST_READ_UINT32_BE (out + 4) + HEADER_SIZE;
/* Check that the magic is intact, and the size is sensible */
if (to_write > l->tx_buf_size) {
GST_ERROR ("Indicated packet size is too large. Corruption detected");
goto fail_and_cleanup;
}
l->tx_buf_read += to_write;
GST_LOG ("Writing packet of size %d bytes to fd %d", to_write, l->fd_w.fd);
do {
res = write (l->fd_w.fd, out, to_write);
if (G_UNLIKELY (res < 0)) {
if (errno == EAGAIN || errno == EINTR)
continue;
/* Failed to write -> child died */
goto fail_and_cleanup;
}
to_write -= res;
out += res;
} while (to_write > 0);
if (l->tx_buf_read == l->tx_buf_write) {
gst_poll_fd_ctl_write (l->fdset, &l->fd_w, FALSE);
l->tx_buf_read = l->tx_buf_write = 0;
}
return TRUE;
fail_and_cleanup:
plugin_loader_cleanup_child (l);
return FALSE;
}
static GstBuffer *
create_overlay_buffer (void)
{
GZlibDecompressor *decompress;
GConverterResult decomp_res;
guchar *gzipped_pixdata, *pixdata;
gsize gzipped_size, bytes_read, pixdata_size;
GstBuffer *logo_pixels;
guint w, h, stride;
gzipped_pixdata = g_base64_decode (gzipped_pixdata_base64, &gzipped_size);
g_assert (gzipped_pixdata != NULL);
pixdata = g_malloc (64 * 1024);
decompress = g_zlib_decompressor_new (G_ZLIB_COMPRESSOR_FORMAT_GZIP);
decomp_res = g_converter_convert (G_CONVERTER (decompress),
gzipped_pixdata, gzipped_size, pixdata, 64 * 1024,
G_CONVERTER_INPUT_AT_END, &bytes_read, &pixdata_size, NULL);
g_assert (decomp_res == G_CONVERTER_FINISHED);
g_assert (bytes_read == gzipped_size);
g_free (gzipped_pixdata);
g_object_unref (decompress);
/* 0: Pixbuf magic (0x47646b50) */
g_assert (GST_READ_UINT32_BE (pixdata) == 0x47646b50);
/* 4: length incl. header */
/* 8: pixdata_type */
/* 12: rowstride (900) */
stride = GST_READ_UINT32_BE (pixdata + 12);
/* 16: width (225) */
w = GST_READ_UINT32_BE (pixdata + 16);
/* 20: height (57) */
h = GST_READ_UINT32_BE (pixdata + 20);
/* 24: pixel_data */
GST_LOG ("%dx%d @ %d", w, h, stride);
/* we assume that the last line also has padding at the end */
g_assert (pixdata_size - 24 >= h * stride);
logo_pixels = gst_buffer_new_and_alloc (h * stride);
gst_buffer_fill (logo_pixels, 0, pixdata + 24, h * stride);
gst_buffer_add_video_meta (logo_pixels, GST_VIDEO_FRAME_FLAG_NONE,
GST_VIDEO_OVERLAY_COMPOSITION_FORMAT_RGB, w, h);
g_free (pixdata);
return logo_pixels;
}
static ImageDescription *
image_description_from_stsd_buffer (GstBuffer * buf)
{
ImageDescription *desc = NULL;
guint8 *content;
guint size;
gint imds;
GST_LOG ("buffer %p, size:%u", buf, GST_BUFFER_SIZE (buf));
/* The buffer contains a full atom, we only need the contents */
/* This buffer has data in big-endian, we need to read it as such.
* except for the fourcc which are ALWAYS big-endian. */
content = GST_BUFFER_DATA (buf) + 16;
size = GST_BUFFER_SIZE (buf) - 16;
#if DEBUG_DUMP
GST_LOG ("incoming data in big-endian");
gst_util_dump_mem (content, size);
#endif
desc = g_malloc0 (size);
desc->idSize = size;
desc->cType = GST_READ_UINT32_BE (content + 4);
desc->version = QT_UINT16 (content + 16);
desc->revisionLevel = QT_UINT16 (content + 18);
desc->vendor = GST_READ_UINT32_BE (content + 20);
desc->temporalQuality = QT_UINT32 (content + 24);
desc->spatialQuality = QT_UINT32 (content + 24);
desc->dataSize = QT_UINT32 (content + 44);
desc->frameCount = QT_UINT16 (content + 48);
desc->depth = QT_UINT16 (content + 82);
desc->clutID = QT_UINT16 (content + 84);
imds = 86; /* sizeof (ImageDescription); */
if (desc->idSize > imds) {
GST_LOG ("Copying %d bytes from %p to %p",
size - imds, content + imds, desc + imds);
memcpy ((guint8 *) desc + imds, (guint8 *) content + imds, size - imds);
}
#if DEBUG_DUMP
GST_LOG ("outgoing data in machine-endian");
dump_image_description (desc);
#endif
return desc;
}
static gboolean
moov_recov_parse_tkhd (MoovRecovFile * moovrf, TrakRecovData * trakrd)
{
guint32 size;
guint32 fourcc;
guint8 data[4];
/* make sure we are on a tkhd atom */
if (!read_atom_header (moovrf->file, &fourcc, &size))
return FALSE;
if (fourcc != FOURCC_tkhd)
return FALSE;
trakrd->tkhd_file_offset = ftell (moovrf->file) - 8;
/* move 8 bytes forward to the trak_id pos */
if (fseek (moovrf->file, 12, SEEK_CUR) != 0)
return FALSE;
if (fread (data, 1, 4, moovrf->file) != 4)
return FALSE;
/* advance the rest of tkhd */
fseek (moovrf->file, 68, SEEK_CUR);
trakrd->trak_id = GST_READ_UINT32_BE (data);
return TRUE;
}
static gboolean
moov_recov_parse_mdhd (MoovRecovFile * moovrf, TrakRecovData * trakrd)
{
guint32 size;
guint32 fourcc;
guint8 data[4];
/* make sure we are on a tkhd atom */
if (!read_atom_header (moovrf->file, &fourcc, &size))
return FALSE;
if (fourcc != FOURCC_mdhd)
return FALSE;
trakrd->mdhd_file_offset = ftell (moovrf->file) - 8;
/* get the timescale */
if (fseek (moovrf->file, 12, SEEK_CUR) != 0)
return FALSE;
if (fread (data, 1, 4, moovrf->file) != 4)
return FALSE;
trakrd->timescale = GST_READ_UINT32_BE (data);
if (fseek (moovrf->file, 8, SEEK_CUR) != 0)
return FALSE;
return TRUE;
}
static gboolean
parse_exif_tag_header (GstByteReader * reader, gint byte_order,
GstExifTagData * _tagdata)
{
g_assert (_tagdata);
/* read the fields */
if (byte_order == G_LITTLE_ENDIAN) {
if (!gst_byte_reader_get_uint16_le (reader, &_tagdata->tag) ||
!gst_byte_reader_get_uint16_le (reader, &_tagdata->tag_type) ||
!gst_byte_reader_get_uint32_le (reader, &_tagdata->count) ||
!gst_byte_reader_get_data (reader, 4, &_tagdata->offset_as_data)) {
return FALSE;
}
_tagdata->offset = GST_READ_UINT32_LE (_tagdata->offset_as_data);
} else {
if (!gst_byte_reader_get_uint16_be (reader, &_tagdata->tag) ||
!gst_byte_reader_get_uint16_be (reader, &_tagdata->tag_type) ||
!gst_byte_reader_get_uint32_be (reader, &_tagdata->count) ||
!gst_byte_reader_get_data (reader, 4, &_tagdata->offset_as_data)) {
return FALSE;
}
_tagdata->offset = GST_READ_UINT32_BE (_tagdata->offset_as_data);
}
return TRUE;
}
static gboolean
verify_buffer_packetized (buffer_verify_data_s * vdata, GstBuffer * buffer)
{
GstMapInfo map;
gst_buffer_map (buffer, &map, GST_MAP_READ);
fail_unless (map.size > 4);
fail_unless (GST_READ_UINT32_BE (map.data) == 0x01);
if (vdata->discard) {
/* check separate header NALs */
guint8 *data;
gint size;
if (vdata->buffer_counter == 0) {
data = h264_sps;
size = sizeof (h264_sps);
} else {
data = h264_pps;
size = sizeof (h264_pps);
}
fail_unless (map.size == size);
fail_unless (memcmp (map.data + 4, data + 4, size - 4) == 0);
} else {
fail_unless (map.size == vdata->data_to_verify_size);
fail_unless (memcmp (map.data + 4,
vdata->data_to_verify + 4, map.size - 4) == 0);
}
gst_buffer_unmap (buffer, &map);
return TRUE;
}
guint32
gst_rdt_packet_data_get_timestamp (GstRDTPacket * packet)
{
guint header;
gboolean length_included_flag;
guint8 *bufdata;
g_return_val_if_fail (packet != NULL, 0);
g_return_val_if_fail (GST_RDT_IS_DATA_TYPE (packet->type), 0);
bufdata = GST_BUFFER_DATA (packet->buffer);
header = packet->offset;
length_included_flag = (bufdata[header] & 0x80) == 0x80;
/* skip seq_no and header bits */
header += 3;
if (length_included_flag) {
/* skip length */
header += 2;
}
/* skip asm_rule_number */
header += 1;
/* get timestamp */
return GST_READ_UINT32_BE (&bufdata[header]);
}
static gboolean
verify_buffer_packetized (buffer_verify_data_s * vdata, GstBuffer * buffer)
{
fail_unless (GST_BUFFER_SIZE (buffer) > 4);
fail_unless (GST_READ_UINT32_BE (GST_BUFFER_DATA (buffer)) == 0x01);
if (vdata->discard) {
/* check separate header NALs */
guint8 *data;
gint size;
if (vdata->buffer_counter == 0) {
data = h264_sps;
size = sizeof (h264_sps);
} else {
data = h264_pps;
size = sizeof (h264_pps);
}
fail_unless (GST_BUFFER_SIZE (buffer) == size);
fail_unless (memcmp (GST_BUFFER_DATA (buffer) + 4, data + 4,
size - 4) == 0);
} else {
fail_unless (GST_BUFFER_SIZE (buffer) == vdata->data_to_verify_size);
fail_unless (memcmp (GST_BUFFER_DATA (buffer) + 4,
vdata->data_to_verify + 4, GST_BUFFER_SIZE (buffer) - 4) == 0);
}
return TRUE;
}
static gboolean
flv_script_data_read_string(FlvScriptDataReader* reader, gchar** dest, gboolean longString)
{
gsize length;
/* Read length of string */
if ((reader->position + (longString ? 4 : 2)) > reader->end)
return FALSE;
if (longString) {
length = GST_READ_UINT32_BE(reader->position);
reader->position += 4;
} else {
length = GST_READ_UINT16_BE(reader->position);
reader->position += 2;
}
/* Alloc buffer and copy string into it */
if ((reader->position + length) > reader->end)
return FALSE;
if (length >= G_MAXSIZE - 1)
return FALSE;
*dest = g_malloc(length + 1);
if (*dest == NULL)
return FALSE;
memcpy(*dest, reader->position, length);
(*dest)[length] = 0;
reader->position += length;
return TRUE;
}
static gboolean
check_protocol_version (GstPluginLoader * l, guint8 * payload,
guint payload_len)
{
guint32 got_version;
guint8 *binary_reg_ver;
if (payload_len < sizeof (guint32) + GST_MAGIC_BINARY_VERSION_LEN)
return FALSE;
got_version = GST_READ_UINT32_BE (payload);
GST_LOG ("Got VERSION %u from child. Ours is %u", got_version,
loader_protocol_version);
if (got_version != loader_protocol_version)
return FALSE;
binary_reg_ver = payload + sizeof (guint32);
if (strcmp ((gchar *) binary_reg_ver, GST_MAGIC_BINARY_VERSION_STR)) {
GST_LOG ("Binary chunk format of child is different. Ours: %s, child %s\n",
GST_MAGIC_BINARY_VERSION_STR, binary_reg_ver);
return FALSE;
}
return TRUE;
};
gboolean
mxf_fraction_parse (MXFFraction * fraction, const guint8 * data, guint size)
{
g_return_val_if_fail (fraction != NULL, FALSE);
g_return_val_if_fail (data != NULL, FALSE);
memset (fraction, 0, sizeof (MXFFraction));
if (size < 8)
return FALSE;
fraction->n = GST_READ_UINT32_BE (data);
fraction->d = GST_READ_UINT32_BE (data + 4);
return TRUE;
}
guint32
gst_rdt_packet_data_get_timestamp (GstRDTPacket * packet)
{
GstMapInfo map;
guint header;
gboolean length_included_flag;
guint32 result;
g_return_val_if_fail (packet != NULL, 0);
g_return_val_if_fail (GST_RDT_IS_DATA_TYPE (packet->type), 0);
gst_buffer_map (packet->buffer, &map, GST_MAP_READ);
header = packet->offset;
length_included_flag = (map.data[header] & 0x80) == 0x80;
/* skip seq_no and header bits */
header += 3;
if (length_included_flag) {
/* skip length */
header += 2;
}
/* skip asm_rule_number */
header += 1;
/* get timestamp */
result = GST_READ_UINT32_BE (&map.data[header]);
gst_buffer_unmap (packet->buffer, &map);
return result;
}
static GstFlowReturn
gst_omx_h264_enc_handle_output_frame (GstOMXVideoEnc * self, GstOMXPort * port,
GstOMXBuffer * buf, GstVideoFrame * frame)
{
if (buf->omx_buf->nFlags & OMX_BUFFERFLAG_CODECCONFIG) {
/* The codec data is SPS/PPS with a startcode => bytestream stream format
* For bytestream stream format the SPS/PPS is only in-stream and not
* in the caps!
*/
if (buf->omx_buf->nFilledLen >= 4 &&
GST_READ_UINT32_BE (buf->omx_buf->pBuffer +
buf->omx_buf->nOffset) == 0x00000001) {
GstBuffer *hdrs;
GST_DEBUG_OBJECT (self, "got codecconfig in byte-stream format");
buf->omx_buf->nFlags &= ~OMX_BUFFERFLAG_CODECCONFIG;
hdrs = gst_buffer_new_and_alloc (buf->omx_buf->nFilledLen);
memcpy (GST_BUFFER_DATA (hdrs),
buf->omx_buf->pBuffer + buf->omx_buf->nOffset,
buf->omx_buf->nFilledLen);
gst_base_video_encoder_set_headers (GST_BASE_VIDEO_ENCODER (self), hdrs);
gst_buffer_unref (hdrs);
}
}
return GST_OMX_VIDEO_ENC_CLASS (parent_class)->handle_output_frame (self,
port, buf, frame);
}
static GstPadProbeReturn
drop_theora_config (GstPad *pad, GstPadProbeInfo *info, gpointer user_data)
{
GstBuffer *buffer = GST_PAD_PROBE_INFO_BUFFER (info);
GstRTPBuffer rtpbuffer = GST_RTP_BUFFER_INIT;
guint8 *payload;
guint32 header;
guchar TDT;
gst_rtp_buffer_map (buffer, GST_MAP_READ, &rtpbuffer);
payload = gst_rtp_buffer_get_payload (&rtpbuffer);
header = GST_READ_UINT32_BE (payload);
/*
* 0 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Ident | F |TDT|# pkts.|
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*
* F: Fragment type (0=none, 1=start, 2=cont, 3=end)
* TDT: Theora data type (0=theora, 1=config, 2=comment, 3=reserved)
* pkts: number of packets.
*/
TDT = (header & 0x30) >> 4;
gst_rtp_buffer_unmap (&rtpbuffer);
if (TDT == 1)
return GST_PAD_PROBE_DROP;
else
return GST_PAD_PROBE_OK;
}
static int
_parse_u32 (AmfParser * parser)
{
int x;
x = GST_READ_UINT32_BE (parser->data + parser->offset);
parser->offset += 4;
return x;
}
static gboolean
verify_buffer (buffer_verify_data_s * vdata, GstBuffer * buffer)
{
if (vdata->discard) {
/* check separate header NALs */
gint i = vdata->buffer_counter;
fail_unless (i <= 1);
fail_unless (GST_BUFFER_SIZE (buffer) == ctx_headers[i].size);
fail_unless (memcmp (GST_BUFFER_DATA (buffer), ctx_headers[i].data,
GST_BUFFER_SIZE (buffer)) == 0);
} else {
fail_unless (GST_BUFFER_SIZE (buffer) > 4);
/* only need to check avc output case */
if (GST_READ_UINT32_BE (GST_BUFFER_DATA (buffer)) == 0x01)
return FALSE;
/* header is merged in initial frame */
if (vdata->buffer_counter == 0) {
guint8 *data = GST_BUFFER_DATA (buffer);
fail_unless (GST_BUFFER_SIZE (buffer) == vdata->data_to_verify_size +
ctx_headers[0].size + ctx_headers[1].size);
fail_unless (GST_READ_UINT32_BE (data) == ctx_headers[0].size - 4);
fail_unless (memcmp (data + 4, ctx_headers[0].data + 4,
ctx_headers[0].size - 4) == 0);
data += ctx_headers[0].size;
fail_unless (GST_READ_UINT32_BE (data) == ctx_headers[1].size - 4);
fail_unless (memcmp (data + 4, ctx_headers[1].data + 4,
ctx_headers[1].size - 4) == 0);
data += ctx_headers[1].size;
fail_unless (GST_READ_UINT32_BE (data) == vdata->data_to_verify_size - 4);
fail_unless (memcmp (data + 4, vdata->data_to_verify + 4,
vdata->data_to_verify_size - 4) == 0);
} else {
fail_unless (GST_READ_UINT32_BE (GST_BUFFER_DATA (buffer)) ==
GST_BUFFER_SIZE (buffer) - 4);
fail_unless (GST_BUFFER_SIZE (buffer) == vdata->data_to_verify_size);
fail_unless (memcmp (GST_BUFFER_DATA (buffer) + 4,
vdata->data_to_verify + 4, GST_BUFFER_SIZE (buffer) - 4) == 0);
}
return TRUE;
}
return FALSE;
}
static gboolean
moov_recov_parse_moov_timescale (MoovRecovFile * moovrf)
{
guint8 ts[4];
if (fread (ts, 1, 4, moovrf->file) != 4)
return FALSE;
moovrf->timescale = GST_READ_UINT32_BE (ts);
return TRUE;
}
static gboolean
moov_recov_parse_num_traks (MoovRecovFile * moovrf)
{
guint8 traks[4];
if (fread (traks, 1, 4, moovrf->file) != 4)
return FALSE;
moovrf->num_traks = GST_READ_UINT32_BE (traks);
return TRUE;
}
/**
* gst_audio_format_fill_silence:
* @info: a #GstAudioFormatInfo
* @dest: (array length=length) (element-type guint8): a destination
* to fill
* @length: the length to fill
*
* Fill @length bytes in @dest with silence samples for @info.
*/
void
gst_audio_format_fill_silence (const GstAudioFormatInfo * info,
gpointer dest, gsize length)
{
guint8 *dptr = dest;
g_return_if_fail (info != NULL);
g_return_if_fail (dest != NULL);
if (info->flags & GST_AUDIO_FORMAT_FLAG_FLOAT ||
info->flags & GST_AUDIO_FORMAT_FLAG_SIGNED) {
/* float or signed always 0 */
orc_memset (dest, 0, length);
} else {
gint i, j, bps = info->width >> 3;
switch (bps) {
case 1:
orc_memset (dest, info->silence[0], length);
break;
case 2:{
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
guint16 silence = GST_READ_UINT16_LE (info->silence);
#else
guint16 silence = GST_READ_UINT16_BE (info->silence);
#endif
audio_orc_splat_u16 (dest, silence, length / bps);
break;
}
case 4:{
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
guint32 silence = GST_READ_UINT32_LE (info->silence);
#else
guint32 silence = GST_READ_UINT32_BE (info->silence);
#endif
audio_orc_splat_u32 (dest, silence, length / bps);
break;
}
case 8:{
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
guint64 silence = GST_READ_UINT64_LE (info->silence);
#else
guint64 silence = GST_READ_UINT64_BE (info->silence);
#endif
audio_orc_splat_u64 (dest, silence, length / bps);
break;
}
default:
for (i = 0; i < length; i += bps) {
for (j = 0; j < bps; j++)
*dptr++ = info->silence[j];
}
break;
}
}
}
static gboolean
flv_script_data_read_ui32(FlvScriptDataReader* reader, guint32* dest)
{
if (reader->position + 4 > reader->end) {
return FALSE;
}
*dest = GST_READ_UINT32_BE(reader->position);
reader->position+=4;
return TRUE;
}
static gboolean
gst_dirac_parse_frame_header (GstDiracParse * diracparse,
GstBuffer * buffer, guint * framesize)
{
int next_header;
next_header = GST_READ_UINT32_BE (GST_BUFFER_DATA (buffer) + 5);
*framesize = next_header;
return TRUE;
}
static gboolean
read_atom_header (FILE * f, guint32 * fourcc, guint32 * size)
{
guint8 aux[8];
if (fread (aux, 1, 8, f) != 8)
return FALSE;
*size = GST_READ_UINT32_BE (aux);
*fourcc = GST_READ_UINT32_LE (aux + 4);
return TRUE;
}
static gboolean
moov_recov_parse_buffer_entry (MoovRecovFile * moovrf, TrakBufferEntryInfo * b)
{
guint8 data[TRAK_BUFFER_ENTRY_INFO_SIZE];
gint read;
read = fread (data, 1, TRAK_BUFFER_ENTRY_INFO_SIZE, moovrf->file);
if (read != TRAK_BUFFER_ENTRY_INFO_SIZE)
return FALSE;
b->track_id = GST_READ_UINT32_BE (data);
b->nsamples = GST_READ_UINT32_BE (data + 4);
b->delta = GST_READ_UINT32_BE (data + 8);
b->size = GST_READ_UINT32_BE (data + 12);
b->chunk_offset = GST_READ_UINT64_BE (data + 16);
b->sync = data[24] != 0;
b->do_pts = data[25] != 0;
b->pts_offset = GST_READ_UINT64_BE (data + 26);
return TRUE;
}
/**
* gst_rtp_buffer_get_csrc:
* @buffer: the buffer
* @idx: the index of the CSRC to get
*
* Get the CSRC at index @idx in @buffer.
*
* Returns: the CSRC at index @idx in host order.
*/
guint32
gst_rtp_buffer_get_csrc (GstBuffer * buffer, guint8 idx)
{
guint8 *data;
data = GST_BUFFER_DATA (buffer);
g_return_val_if_fail (idx < GST_RTP_HEADER_CSRC_COUNT (data), 0);
return GST_READ_UINT32_BE (GST_RTP_HEADER_CSRC_LIST_OFFSET (data, idx));
}
EXPORT_C
#endif
guint32
gst_rtp_buffer_get_csrc (GstBuffer * buffer, guint8 idx)
{
g_return_val_if_fail (GST_IS_BUFFER (buffer), 0);
g_return_val_if_fail (GST_BUFFER_DATA (buffer) != NULL, 0);
g_return_val_if_fail (idx < GST_RTP_HEADER_CSRC_COUNT (buffer), 0);
return GST_READ_UINT32_BE (GST_RTP_HEADER_CSRC_LIST_OFFSET (buffer, idx));
}
static void
check_rgb_buf (const guint8 * pixels, guint32 r_mask, guint32 g_mask,
guint32 b_mask, guint32 a_mask, guint8 r_expected, guint8 g_expected,
guint8 b_expected, guint bpp, guint depth)
{
guint32 pixel, red, green, blue, alpha;
switch (bpp) {
case 32:
pixel = GST_READ_UINT32_BE (pixels);
break;
case 24:
pixel = (GST_READ_UINT8 (pixels) << 16) |
(GST_READ_UINT8 (pixels + 1) << 8) |
(GST_READ_UINT8 (pixels + 2) << 0);
break;
case 16:
if (G_BYTE_ORDER == G_LITTLE_ENDIAN)
pixel = GST_READ_UINT16_LE (pixels);
else
pixel = GST_READ_UINT16_BE (pixels);
break;
default:
g_return_if_reached ();
}
red = right_shift_colour (r_mask, pixel);
green = right_shift_colour (g_mask, pixel);
blue = right_shift_colour (b_mask, pixel);
alpha = right_shift_colour (a_mask, pixel);
/* can't enable this by default, valgrind will complain about accessing
* uninitialised memory for the depth=24,bpp=32 formats ... */
/* GST_LOG ("pixels: 0x%02x 0x%02x 0x%02x 0x%02x => pixel = 0x%08x",
pixels[0], (guint) pixels[1], pixels[2], pixels[3], pixel); */
/* fix up the mask (for rgb15/16) */
if (bpp == 16) {
r_expected = fix_expected_colour (r_mask, r_expected);
g_expected = fix_expected_colour (g_mask, g_expected);
b_expected = fix_expected_colour (b_mask, b_expected);
}
fail_unless (red == r_expected, "RED: expected 0x%02x, found 0x%02x",
r_expected, red);
fail_unless (green == g_expected, "GREEN: expected 0x%02x, found 0x%02x",
g_expected, green);
fail_unless (blue == b_expected, "BLUE: expected 0x%02x, found 0x%02x",
b_expected, blue);
fail_unless (a_mask == 0 || alpha != 0); /* better than nothing */
}
static int
scan_fast (guint8 * data, guint32 pattern, guint32 mask, int n)
{
int i;
pattern &= mask;
for (i = 0; i < n; i++) {
if ((GST_READ_UINT32_BE (data + i) & mask) == pattern) {
return i;
}
}
return n;
}
static GstFlowReturn
mq_dummypad_chain (GstPad * sinkpad, GstObject * parent, GstBuffer * buf)
{
guint32 cur_id;
struct PadData *pad_data;
GstMapInfo info;
pad_data = gst_pad_get_element_private (sinkpad);
g_mutex_lock (&_check_lock);
fail_if (pad_data == NULL);
/* Read an ID from the first 4 bytes of the buffer data and check it's
* what we expect */
fail_unless (gst_buffer_map (buf, &info, GST_MAP_READ));
fail_unless (info.size >= 4);
g_mutex_unlock (&_check_lock);
cur_id = GST_READ_UINT32_BE (info.data);
gst_buffer_unmap (buf, &info);
g_mutex_lock (pad_data->mutex);
/* For not-linked pads, ensure that we're not running ahead of the 'linked'
* pads. The first buffer is allowed to get ahead, because otherwise things can't
* always pre-roll correctly */
if (!pad_data->is_linked) {
/* If there are no linked pads, we can't track a max_id for them :) */
if (pad_data->n_linked > 0 && !pad_data->first_buf) {
g_mutex_lock (&_check_lock);
fail_unless (cur_id <= *(pad_data->max_linked_id_ptr) + 1,
"Got buffer %u on pad %u before buffer %u was seen on a "
"linked pad (max: %u)", cur_id, pad_data->pad_num, cur_id - 1,
*(pad_data->max_linked_id_ptr));
g_mutex_unlock (&_check_lock);
}
} else {
/* Update the max_id value */
if (cur_id > *(pad_data->max_linked_id_ptr))
*(pad_data->max_linked_id_ptr) = cur_id;
}
pad_data->first_buf = FALSE;
g_mutex_unlock (pad_data->mutex);
/* Unref the buffer */
gst_buffer_unref (buf);
/* Return OK or not-linked as indicated */
return pad_data->is_linked ? GST_FLOW_OK : GST_FLOW_NOT_LINKED;
}