mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-12-03 15:06:34 +00:00
Code Issues 1 Projects Releases Wiki Activity

vorbisenc, theoraenc: Ensure gp is computed consistently + clip to segment

Browse source 
With vorbisenc, compute the granulepos with running time and clip incoming
buffers to segment.
With theoraenc, drop out of segment buffers.
This commit is contained in:
Zaheer Merali 2009-05-06 13:19:34 +01:00
parent 02a7b31f0e
commit 1650272b84
2 changed files with 23 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
ext/theora/theoraenc.c
View file

@ -757,6 +757,12 @@ theora_enc_chain (GstPad * pad, GstBuffer * buffer)
running_time =
gst_segment_to_running_time (&enc->segment, GST_FORMAT_TIME, timestamp);
if ((gint64) running_time < 0) {
GST_DEBUG_OBJECT (enc, "Dropping buffer, timestamp: %" GST_TIME_FORMAT,
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)));
gst_buffer_unref (buffer);
return GST_FLOW_OK;
}
/* see if we need to schedule a keyframe */
GST_OBJECT_LOCK (enc);

24
ext/vorbis/vorbisenc.c
View file

@ -51,6 +51,7 @@
#include <gst/gsttagsetter.h>
#include <gst/tag/tag.h>
#include <gst/audio/multichannel.h>
#include <gst/audio/audio.h>
#include "gstvorbisenc.h"
GST_DEBUG_CATEGORY_EXTERN (vorbisenc_debug);
@ -893,7 +894,8 @@ gst_vorbis_enc_buffer_from_packet (GstVorbisEnc * vorbisenc,
/* update the next timestamp, taking granulepos_offset and subgranule offset
* into account */
vorbisenc->next_ts =
granulepos_to_timestamp_offset (vorbisenc, packet->granulepos);
granulepos_to_timestamp_offset (vorbisenc, packet->granulepos) +
vorbisenc->initial_ts;
GST_BUFFER_DURATION (outbuf) =
vorbisenc->next_ts - GST_BUFFER_TIMESTAMP (outbuf);
@ -1097,18 +1099,25 @@ gst_vorbis_enc_chain (GstPad * pad, GstBuffer * buffer)
GstBuffer *buf1, *buf2, *buf3;
gboolean first = FALSE;
GstClockTime timestamp = GST_CLOCK_TIME_NONE;
GstClockTime running_time = GST_CLOCK_TIME_NONE;
vorbisenc = GST_VORBISENC (GST_PAD_PARENT (pad));
if (!vorbisenc->setup)
goto not_setup;
timestamp =
buffer = gst_audio_buffer_clip (buffer, &vorbisenc->segment,
vorbisenc->frequency, 4 * vorbisenc->channels);
if (buffer == NULL) {
GST_DEBUG_OBJECT (vorbisenc, "Dropping buffer, out of segment");
return GST_FLOW_OK;
}
running_time =
gst_segment_to_running_time (&vorbisenc->segment, GST_FORMAT_TIME,
GST_BUFFER_TIMESTAMP (buffer)) + vorbisenc->initial_ts;
GST_BUFFER_TIMESTAMP (buffer));
timestamp = running_time + vorbisenc->initial_ts;
GST_DEBUG_OBJECT (vorbisenc, "Initial ts is %" GST_TIME_FORMAT,
GST_TIME_ARGS (vorbisenc->initial_ts));
if (!vorbisenc->header_sent) {
/* Vorbis streams begin with three headers; the initial header (with
most of the codec setup parameters) which is mandated by the Ogg
@ -1168,10 +1177,11 @@ gst_vorbis_enc_chain (GstPad * pad, GstBuffer * buffer)
vorbisenc->next_ts = timestamp;
vorbisenc->expected_ts = timestamp;
vorbisenc->granulepos_offset = gst_util_uint64_scale
(timestamp, vorbisenc->frequency, GST_SECOND);
(running_time, vorbisenc->frequency, GST_SECOND);
vorbisenc->subgranule_offset = 0;
vorbisenc->subgranule_offset =
vorbisenc->next_ts - granulepos_to_timestamp_offset (vorbisenc, 0);
(vorbisenc->next_ts - vorbisenc->initial_ts) -
granulepos_to_timestamp_offset (vorbisenc, 0);
vorbisenc->header_sent = TRUE;
first = TRUE;
@ -1221,7 +1231,7 @@ gst_vorbis_enc_chain (GstPad * pad, GstBuffer * buffer)
/* We need to round to the nearest whole number of samples, not just do
* a truncating division here */
vorbisenc->granulepos_offset = gst_util_uint64_scale
(timestamp + GST_SECOND / vorbisenc->frequency / 2
(running_time + GST_SECOND / vorbisenc->frequency / 2
- vorbisenc->subgranule_offset, vorbisenc->frequency, GST_SECOND);
vorbisenc->header_sent = TRUE;