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ext/ffmpeg/gstffmpegdec.c: Re-re-enable get_/release_buffer functions, removes a few more percent of our CPU usage (#...

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Original commit message from CVS:
Reviewed by:  Ronald S. Bultje  <rbultje@ronald.bitfreak.net>
* ext/ffmpeg/gstffmpegdec.c: (gst_ffmpegdec_init),
(gst_ffmpegdec_open), (gst_ffmpegdec_connect),
(gst_ffmpegdec_get_buffer), (gst_ffmpegdec_release_buffer),
(gst_ffmpegdec_frame), (gst_ffmpegdec_change_state):
Re-re-enable get_/release_buffer functions, removes a few more
percent of our CPU usage (#301783).
This commit is contained in:
Ronald S. Bultje 2005-05-06 07:47:50 +00:00
parent 1cf3d1b494
commit d840f938cd
2 changed files with 102 additions and 38 deletions
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11
ChangeLog
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@ -1,3 +1,14 @@
2005-05-06 Luca Ognibene <luogni@tin.it>
Reviewed by: Ronald S. Bultje <rbultje@ronald.bitfreak.net>
* ext/ffmpeg/gstffmpegdec.c: (gst_ffmpegdec_init),
(gst_ffmpegdec_open), (gst_ffmpegdec_connect),
(gst_ffmpegdec_get_buffer), (gst_ffmpegdec_release_buffer),
(gst_ffmpegdec_frame), (gst_ffmpegdec_change_state):
Re-re-enable get_/release_buffer functions, removes a few more
percent of our CPU usage (#301783).
2005-05-02 Luca Ognibene <luogni@tin.it>
Reviewed by: Ronald S. Bultje <rbultje@ronald.bitfreak.net>

77
ext/ffmpeg/gstffmpegdec.c
View file

@ -35,6 +35,8 @@
#include "gstffmpeg.h"
#include "gstffmpegcodecmap.h"
//#define FORCE_OUR_GET_BUFFER
typedef struct _GstFFMpegDec GstFFMpegDec;
struct _GstFFMpegDec
@ -64,6 +66,8 @@ struct _GstFFMpegDec
AVCodecParserContext *pctx;
GstBuffer *pcache;
GstBuffer *last_buffer;
GValue *par; /* pixel aspect ratio of incoming data */
gint hurry_up, lowres;
@ -128,13 +132,13 @@ static void gst_ffmpegdec_set_property (GObject * object,
static void gst_ffmpegdec_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec);
#if 0
static gboolean gst_ffmpegdec_negotiate (GstFFMpegDec * ffmpegdec);
/* some sort of bufferpool handling, but different */
static int gst_ffmpegdec_get_buffer (AVCodecContext * context,
AVFrame * picture);
static void gst_ffmpegdec_release_buffer (AVCodecContext * context,
AVFrame * picture);
#endif
static GstElementClass *parent_class = NULL;
@ -277,6 +281,8 @@ gst_ffmpegdec_init (GstFFMpegDec * ffmpegdec)
ffmpegdec->waiting_for_key = FALSE;
ffmpegdec->hurry_up = ffmpegdec->lowres = 0;
ffmpegdec->last_buffer = NULL;
GST_FLAG_SET (ffmpegdec, GST_ELEMENT_EVENT_AWARE);
}
@ -417,6 +423,8 @@ gst_ffmpegdec_open (GstFFMpegDec *ffmpegdec)
}
ffmpegdec->next_ts = 0;
ffmpegdec->last_buffer = NULL;
return TRUE;
}
@ -435,11 +443,9 @@ gst_ffmpegdec_connect (GstPad * pad, const GstCaps * caps)
/* set defaults */
avcodec_get_context_defaults (ffmpegdec->context);
#if 0
/* set buffer functions */
ffmpegdec->context->get_buffer = gst_ffmpegdec_get_buffer;
ffmpegdec->context->release_buffer = gst_ffmpegdec_release_buffer;
#endif
/* get size and so */
gst_ffmpeg_caps_with_codecid (oclass->in_plugin->id,
@ -478,18 +484,46 @@ gst_ffmpegdec_connect (GstPad * pad, const GstCaps * caps)
return GST_PAD_LINK_OK;
}
#if 0
static int
gst_ffmpegdec_get_buffer (AVCodecContext * context, AVFrame * picture)
{
GstBuffer *buf = NULL;
gulong bufsize = 0;
GstFFMpegDec *ffmpegdec = (GstFFMpegDec *) context->opaque;
int width = context->width;
int height = context->height;
switch (context->codec_type) {
case CODEC_TYPE_VIDEO:
avcodec_align_dimensions(context, &width, &height);
bufsize = avpicture_get_size (context->pix_fmt,
context->width, context->height);
buf = gst_buffer_new_and_alloc (bufsize);
width, height);
if((width != context->width) || (height != context->height)) {
#ifdef FORCE_OUR_GET_BUFFER
context->width = width;
context->height = height;
#else
/* revert to ffmpeg's default functions */
ffmpegdec->context->get_buffer = avcodec_default_get_buffer;
ffmpegdec->context->release_buffer = avcodec_default_release_buffer;
return avcodec_default_get_buffer(context, picture);
#endif
}
if (!gst_ffmpegdec_negotiate (ffmpegdec)) {
GST_ELEMENT_ERROR (ffmpegdec, CORE, NEGOTIATION, (NULL),
("Failed to link ffmpeg decoder to next element"));
return avcodec_default_get_buffer(context, picture);
}
buf = gst_pad_alloc_buffer (ffmpegdec->srcpad, GST_BUFFER_OFFSET_NONE, bufsize);
ffmpegdec->last_buffer = buf;
gst_ffmpeg_avpicture_fill ((AVPicture *) picture,
GST_BUFFER_DATA (buf),
context->pix_fmt, context->width, context->height);
@ -509,7 +543,7 @@ gst_ffmpegdec_get_buffer (AVCodecContext * context, AVFrame * picture)
* so that we don't need to copy data */
picture->type = FF_BUFFER_TYPE_USER;
picture->age = G_MAXINT;
picture->base[0] = (int8_t *) buf;
picture->opaque = buf;
gst_buffer_ref (buf);
return 0;
@ -519,8 +553,13 @@ static void
gst_ffmpegdec_release_buffer (AVCodecContext * context, AVFrame * picture)
{
gint i;
GstBuffer *buf = GST_BUFFER (picture->base[0]);
GstBuffer *buf = GST_BUFFER (picture->opaque);
GstFFMpegDec *ffmpegdec = (GstFFMpegDec *) context->opaque;
g_return_if_fail (buf != NULL);
g_return_if_fail (picture->type == FF_BUFFER_TYPE_USER);
ffmpegdec->last_buffer = NULL;
gst_buffer_unref (buf);
/* zero out the reference in ffmpeg */
@ -529,7 +568,6 @@ gst_ffmpegdec_release_buffer (AVCodecContext * context, AVFrame * picture)
picture->linesize[i] = 0;
}
}
#endif
static gboolean
gst_ffmpegdec_negotiate (GstFFMpegDec * ffmpegdec)
@ -628,6 +666,9 @@ gst_ffmpegdec_frame (GstFFMpegDec * ffmpegdec,
switch (oclass->in_plugin->type) {
case CODEC_TYPE_VIDEO:
ffmpegdec->picture->pict_type = -1; /* in case we skip frames */
ffmpegdec->context->opaque = ffmpegdec;
len = avcodec_decode_video (ffmpegdec->context,
ffmpegdec->picture, &have_data, data, size);
GST_DEBUG_OBJECT (ffmpegdec,
@ -640,12 +681,14 @@ gst_ffmpegdec_frame (GstFFMpegDec * ffmpegdec,
/* libavcodec constantly crashes on stupid buffer allocation
* errors inside. This drives me crazy, so we let it allocate
* it's own buffers and copy to our own buffer afterwards... */
if (ffmpegdec->picture->opaque != NULL) {
outbuf = (GstBuffer *) ffmpegdec->picture->opaque;
}else {
AVPicture pic;
gint fsize = gst_ffmpeg_avpicture_get_size (ffmpegdec->context->pix_fmt,
ffmpegdec->context->width, ffmpegdec->context->height);
ffmpegdec->waiting_for_key = FALSE;
if (!gst_ffmpegdec_negotiate (ffmpegdec))
return -1;
@ -665,6 +708,9 @@ gst_ffmpegdec_frame (GstFFMpegDec * ffmpegdec,
ffmpegdec->context->pix_fmt,
ffmpegdec->context->width,
ffmpegdec->context->height);
}
ffmpegdec->waiting_for_key = FALSE;
/* note that ffmpeg sometimes gets the FPS wrong.
* For B-frame containing movies, we get all pictures delayed
@ -763,6 +809,7 @@ gst_ffmpegdec_frame (GstFFMpegDec * ffmpegdec,
}
if (have_data) {
GST_DEBUG_OBJECT (ffmpegdec, "Decoded data, now pushing (%"
GST_TIME_FORMAT ")", GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (outbuf)));
@ -955,6 +1002,12 @@ gst_ffmpegdec_change_state (GstElement * element)
switch (transition) {
case GST_STATE_PAUSED_TO_READY:
if (ffmpegdec->last_buffer != NULL) {
gst_buffer_unref (ffmpegdec->last_buffer);
}
/* closing context.. unref buffers? */
gst_ffmpegdec_close (ffmpegdec);
break;
}