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ext/theora/theoradec.c: Calculate buffer duration correctly to generate a perfect stream (#433888).

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Original commit message from CVS:
2007-04-27  Julien MOUTTE  <julien@moutte.net>

* ext/theora/theoradec.c: (_theora_granule_time),
(theora_dec_push_forward), (theora_handle_data_packet),
(theora_dec_decode_buffer): Calculate buffer duration correctly
to generate a perfect stream (#433888).
* gst/audioresample/gstaudioresample.c:
(audioresample_check_discont): Glib provides ABS.
This commit is contained in:
Julien Moutte 2007-04-27 15:33:46 +00:00
parent f23356bd8f
commit d299d1c063
3 changed files with 28 additions and 9 deletions
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9
ChangeLog
View file

@ -1,3 +1,12 @@
2007-04-27 Julien MOUTTE <julien@moutte.net>
* ext/theora/theoradec.c: (_theora_granule_time),
(theora_dec_push_forward), (theora_handle_data_packet),
(theora_dec_decode_buffer): Calculate buffer duration correctly
to generate a perfect stream (#433888).
* gst/audioresample/gstaudioresample.c:
(audioresample_check_discont): Glib provides ABS.
2007-04-27 Wim Taymans <wim@fluendo.com>
* gst-libs/gst/rtp/gstrtcpbuffer.c: (gst_rtcp_packet_get_rb),

18
ext/theora/theoradec.c
View file

@ -230,7 +230,7 @@ _theora_granule_frame (GstTheoraDec * dec, gint64 granulepos)
static GstClockTime
_theora_granule_time (GstTheoraDec * dec, gint64 granulepos)
{
gint framecount;
gint64 framecount;
/* invalid granule results in invalid time */
if (granulepos == -1)
@ -936,6 +936,10 @@ theora_dec_push_forward (GstTheoraDec * dec, GstBuffer * buf)
GST_DEBUG_OBJECT (dec, "patch buffer %lld %lld", size, time);
GST_BUFFER_TIMESTAMP (buffer) = time;
/* Next timestamp - this one is duration */
GST_BUFFER_DURATION (buffer) =
(outtime - gst_util_uint64_scale_int ((size - 1) * GST_SECOND,
dec->info.fps_denominator, dec->info.fps_numerator)) - time;
if (dec->discont) {
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
@ -1103,9 +1107,16 @@ theora_handle_data_packet (GstTheoraDec * dec, ogg_packet * packet,
if (dec->frame_nr != -1)
dec->frame_nr++;
GST_BUFFER_OFFSET_END (out) = dec->frame_nr;
if (dec->granulepos != -1) {
gint64 cf = _theora_granule_frame (dec, dec->granulepos) + 1;
GST_BUFFER_DURATION (out) = gst_util_uint64_scale_int (cf * GST_SECOND,
dec->info.fps_denominator, dec->info.fps_numerator) - outtime;
} else {
GST_BUFFER_DURATION (out) =
gst_util_uint64_scale_int (GST_SECOND, dec->info.fps_denominator,
dec->info.fps_numerator);
}
GST_BUFFER_TIMESTAMP (out) = outtime;
if (dec->segment.rate >= 0.0)
@ -1190,8 +1201,9 @@ theora_dec_decode_buffer (GstTheoraDec * dec, GstBuffer * buf)
dec->last_timestamp = -1;
}
GST_DEBUG_OBJECT (dec, "header=%02x packetno=%lld, outtime=%" GST_TIME_FORMAT,
packet.bytes ? packet.packet[0] : -1, packet.packetno,
GST_DEBUG_OBJECT (dec, "header=%02x packetno=%lld, granule pos=%"
G_GINT64_FORMAT ", outtime=%" GST_TIME_FORMAT,
packet.bytes ? packet.packet[0] : -1, packet.packetno, packet.granulepos,
GST_TIME_ARGS (dec->last_timestamp));
/* switch depending on packet type. A zero byte packet is always a data

4
gst/audioresample/gstaudioresample.c
View file

@ -575,8 +575,6 @@ audioresample_do_output (GstAudioresample * audioresample, GstBuffer * outbuf)
return GST_FLOW_OK;
}
/* llabs() is C99, so we might not have it; just use a simple macro... */
#define LLABS(x) ((x>0)?x:-x)
static gboolean
audioresample_check_discont (GstAudioresample * audioresample,
GstClockTime timestamp)
@ -592,7 +590,7 @@ audioresample_check_discont (GstAudioresample * audioresample,
GstClockTimeDiff diff = timestamp -
(audioresample->prev_ts + audioresample->prev_duration);
if (LLABS (diff) > GST_SECOND / audioresample->i_rate) {
if (ABS (diff) > GST_SECOND / audioresample->i_rate) {
GST_WARNING_OBJECT (audioresample,
"encountered timestamp discontinuity of %" G_GINT64_FORMAT, diff);
return TRUE;