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ext/ffmpeg/gstffmpegenc.*: Instead of allocating 512KB buffers and then setting BUFFER_SIZE to what ffmpeg produced, ...

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Original commit message from CVS:
* ext/ffmpeg/gstffmpegenc.c: (ffmpegenc_setup_working_buf),
(gst_ffmpegenc_chain_video), (gst_ffmpegenc_flush_buffers),
(gst_ffmpegenc_change_state):
* ext/ffmpeg/gstffmpegenc.h:
Instead of allocating 512KB buffers and then setting BUFFER_SIZE
to what ffmpeg produced, we're better off by far to use a single
working buffer and copy data out into neat little buffers.
This prevents exhorbitant virtual memory wastage in the form
of allocated but untouched buffers.
This commit is contained in:
Jan Schmidt 2007-06-22 12:13:18 +00:00
parent d0920a38d7
commit b0aa56c796
4 changed files with 43 additions and 8 deletions
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13
ChangeLog
View file

@ -1,3 +1,16 @@
2007-06-22 Jan Schmidt <thaytan@mad.scientist.com>
* ext/ffmpeg/gstffmpegenc.c: (ffmpegenc_setup_working_buf),
(gst_ffmpegenc_chain_video), (gst_ffmpegenc_flush_buffers),
(gst_ffmpegenc_change_state):
* ext/ffmpeg/gstffmpegenc.h:
Instead of allocating 512KB buffers and then setting BUFFER_SIZE
to what ffmpeg produced, we're better off by far to use a single
working buffer and copy data out into neat little buffers.
This prevents exhorbitant virtual memory wastage in the form
of allocated but untouched buffers.
2007-06-20 Stefan Kost <ensonic@users.sf.net>
* ext/ffmpeg/gstffmpegcodecmap.c:

2
common

@ -1 +1 @@
Subproject commit 6cb0000a5a30d4fc580a06489106a637fca024c4
Subproject commit 14c5a68981278f642e4ca5fd5ca08554fc78b348

33
ext/ffmpeg/gstffmpegenc.c
View file

@ -567,6 +567,18 @@ gst_ffmpegenc_setcaps (GstPad * pad, GstCaps * caps)
return TRUE;
}
static void
ffmpegenc_setup_working_buf (GstFFMpegEnc *ffmpegenc)
{
if (ffmpegenc->working_buf == NULL ||
ffmpegenc->working_buf_size != ffmpegenc->buffer_size) {
if (ffmpegenc->working_buf)
g_free (ffmpegenc->working_buf);
ffmpegenc->working_buf_size = ffmpegenc->buffer_size;
ffmpegenc->working_buf = g_malloc (ffmpegenc->working_buf_size);
}
}
static GstFlowReturn
gst_ffmpegenc_chain_video (GstPad * pad, GstBuffer * inbuf)
{
@ -588,9 +600,11 @@ gst_ffmpegenc_chain_video (GstPad * pad, GstBuffer * inbuf)
gst_ffmpeg_time_gst_to_ff (GST_BUFFER_TIMESTAMP (inbuf),
ffmpegenc->context->time_base);
outbuf = gst_buffer_new_and_alloc (ffmpegenc->buffer_size);
ffmpegenc_setup_working_buf (ffmpegenc);
ret_size = avcodec_encode_video (ffmpegenc->context,
GST_BUFFER_DATA (outbuf), GST_BUFFER_SIZE (outbuf), ffmpegenc->picture);
ffmpegenc->working_buf, ffmpegenc->working_buf_size,
ffmpegenc->picture);
if (ret_size < 0) {
#ifndef GST_DISABLE_GST_DEBUG
@ -600,7 +614,6 @@ gst_ffmpegenc_chain_video (GstPad * pad, GstBuffer * inbuf)
"ffenc_%s: failed to encode buffer", oclass->in_plugin->name);
#endif /* GST_DISABLE_GST_DEBUG */
gst_buffer_unref (inbuf);
gst_buffer_unref (outbuf);
return GST_FLOW_OK;
}
@ -620,7 +633,7 @@ gst_ffmpegenc_chain_video (GstPad * pad, GstBuffer * inbuf)
(("Could not write to file \"%s\"."), ffmpegenc->filename),
GST_ERROR_SYSTEM);
GST_BUFFER_SIZE (outbuf) = ret_size;
outbuf = gst_buffer_new_and_alloc (ret_size);
GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (inbuf);
GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (inbuf);
if (!ffmpegenc->context->coded_frame->key_frame)
@ -739,9 +752,10 @@ gst_ffmpegenc_flush_buffers (GstFFMpegEnc * ffmpegenc, gboolean send)
while (!g_queue_is_empty (ffmpegenc->delay)) {
outbuf = gst_buffer_new_and_alloc (ffmpegenc->buffer_size);
ffmpegenc_setup_working_buf (ffmpegenc);
ret_size = avcodec_encode_video (ffmpegenc->context,
GST_BUFFER_DATA (outbuf), GST_BUFFER_SIZE (outbuf), NULL);
ffmpegenc->working_buf, ffmpegenc->working_buf_size, NULL);
if (ret_size < 0) { /* there should be something, notify and give up */
#ifndef GST_DISABLE_GST_DEBUG
@ -763,9 +777,10 @@ gst_ffmpegenc_flush_buffers (GstFFMpegEnc * ffmpegenc, gboolean send)
/* handle b-frame delay when no output, so we don't output empty frames */
inbuf = g_queue_pop_head (ffmpegenc->delay);
GST_BUFFER_SIZE (outbuf) = ret_size;
outbuf = gst_buffer_new_and_alloc (ret_size);
GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (inbuf);
GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (inbuf);
if (!ffmpegenc->context->coded_frame->key_frame)
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DELTA_UNIT);
gst_buffer_set_caps (outbuf, GST_PAD_CAPS (ffmpegenc->srcpad));
@ -898,6 +913,10 @@ gst_ffmpegenc_change_state (GstElement * element, GstStateChange transition)
fclose (ffmpegenc->file);
ffmpegenc->file = NULL;
}
if (ffmpegenc->working_buf) {
g_free (ffmpegenc->working_buf);
ffmpegenc->working_buf = NULL;
}
break;
default:
break;

3
ext/ffmpeg/gstffmpegenc.h
View file

@ -48,6 +48,9 @@ struct _GstFFMpegEnc
gulong buffer_size;
gulong rtp_payload_size;
guint8 *working_buf;
gulong working_buf_size;
/* settings with some special handling */
guint pass;
gfloat quantizer;