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ext/ffmpeg/gstffmpegdec.c: Add padding to input data before feeding it to ffmpeg. Also add option to disable this (al...

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Original commit message from CVS:
* ext/ffmpeg/gstffmpegdec.c: (gst_ffmpegdec_class_init),
(gst_ffmpegdec_init), (get_output_buffer), (gst_ffmpegdec_chain),
(gst_ffmpegdec_change_state), (gst_ffmpegdec_set_property),
(gst_ffmpegdec_get_property):
Add padding to input data before feeding it to ffmpeg. Also add option
to disable this (although it does not seem to cause slowdown).
This commit is contained in:
Wim Taymans 2008-01-23 18:23:37 +00:00
parent e57ac5b514
commit 2e73ff53f0
2 changed files with 49 additions and 4 deletions
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9
ChangeLog
View file

@ -1,3 +1,12 @@
2008-01-23 Wim Taymans <wim.taymans@collabora.co.uk>
* ext/ffmpeg/gstffmpegdec.c: (gst_ffmpegdec_class_init),
(gst_ffmpegdec_init), (get_output_buffer), (gst_ffmpegdec_chain),
(gst_ffmpegdec_change_state), (gst_ffmpegdec_set_property),
(gst_ffmpegdec_get_property):
Add padding to input data before feeding it to ffmpeg. Also add option
to disable this (although it does not seem to cause slowdown).
2008-01-23 Wim Taymans <wim.taymans@collabora.co.uk>
* ext/ffmpeg/gstffmpegdec.c: (gst_ffmpegdec_setcaps),

44
ext/ffmpeg/gstffmpegdec.c
View file

@ -77,6 +77,8 @@ struct _GstFFMpegDec
/* parsing */
AVCodecParserContext *pctx;
GstBuffer *pcache;
guint8 *padded;
guint padded_size;
GValue *par; /* pixel aspect ratio of incoming data */
gboolean current_dr; /* if direct rendering is enabled */
@ -86,6 +88,7 @@ struct _GstFFMpegDec
gint hurry_up;
gint lowres;
gboolean direct_rendering;
gboolean do_padding;
/* QoS stuff *//* with LOCK */
gdouble proportion;
@ -132,13 +135,15 @@ struct _GstFFMpegDecClassParams
#define DEFAULT_LOWRES 0
#define DEFAULT_SKIPFRAME 0
#define DEFAULT_DIRECT_RENDERING FALSE
#define DEFAULT_DO_PADDING TRUE
enum
{
PROP_0,
PROP_LOWRES,
PROP_SKIPFRAME,
PROP_DIRECT_RENDERING
PROP_DIRECT_RENDERING,
PROP_DO_PADDING
};
/* A number of function prototypes are given so we can refer to them later. */
@ -285,6 +290,10 @@ gst_ffmpegdec_class_init (GstFFMpegDecClass * klass)
g_param_spec_boolean ("direct-rendering", "Direct Rendering",
"Enable direct rendering",
DEFAULT_DIRECT_RENDERING, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, PROP_DO_PADDING,
g_param_spec_boolean ("do-padding", "Do Padding",
"Add 0 padding before decoding data",
DEFAULT_DO_PADDING, G_PARAM_READWRITE));
}
gstelement_class->change_state = gst_ffmpegdec_change_state;
@ -325,6 +334,7 @@ gst_ffmpegdec_init (GstFFMpegDec * ffmpegdec)
ffmpegdec->waiting_for_key = TRUE;
ffmpegdec->hurry_up = ffmpegdec->lowres = 0;
ffmpegdec->direct_rendering = DEFAULT_DIRECT_RENDERING;
ffmpegdec->do_padding = DEFAULT_DO_PADDING;
ffmpegdec->format.video.fps_n = -1;
ffmpegdec->format.video.old_fps_n = -1;
@ -1268,8 +1278,8 @@ get_output_buffer (GstFFMpegDec * ffmpegdec, GstBuffer ** outbuf)
if (ffmpegdec->picture->opaque != NULL) {
/* we allocated a picture already for ffmpeg to decode into, let's pick it
* up and use it now. */
GST_LOG_OBJECT (ffmpegdec, "using opaque buffer");
*outbuf = (GstBuffer *) ffmpegdec->picture->opaque;
GST_LOG_OBJECT (ffmpegdec, "using opaque buffer %p", *outbuf);
#ifndef EXTRA_REF
gst_buffer_ref (*outbuf);
#endif
@ -1986,7 +1996,7 @@ gst_ffmpegdec_chain (GstPad * pad, GstBuffer * inbuf)
{
GstFFMpegDec *ffmpegdec;
GstFFMpegDecClass *oclass;
guint8 *data, *bdata;
guint8 *data, *bdata, *pdata;
gint size, bsize, len, have_data;
GstFlowReturn ret = GST_FLOW_OK;
GstClockTime in_timestamp, in_duration;
@ -2108,9 +2118,26 @@ gst_ffmpegdec_chain (GstPad * pad, GstBuffer * inbuf)
ffmpegdec->in_ts = in_timestamp;
}
if (ffmpegdec->do_padding) {
/* add padding */
if (ffmpegdec->padded_size <= size + FF_INPUT_BUFFER_PADDING_SIZE) {
ffmpegdec->padded_size = size + FF_INPUT_BUFFER_PADDING_SIZE;
ffmpegdec->padded = g_realloc (ffmpegdec->padded, ffmpegdec->padded_size);
GST_LOG_OBJECT (ffmpegdec, "resized padding buffer to %d",
ffmpegdec->padded_size);
}
memcpy (ffmpegdec->padded, data, size);
memset (ffmpegdec->padded + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
pdata = ffmpegdec->padded;
}
else {
pdata = data;
}
/* decode a frame of audio/video now */
len =
gst_ffmpegdec_frame (ffmpegdec, data, size, &have_data, in_timestamp,
gst_ffmpegdec_frame (ffmpegdec, pdata, size, &have_data, in_timestamp,
in_duration, &ret);
if (ret != GST_FLOW_OK) {
@ -2214,6 +2241,9 @@ gst_ffmpegdec_change_state (GstElement * element, GstStateChange transition)
gst_ffmpegdec_close (ffmpegdec);
GST_OBJECT_UNLOCK (ffmpegdec);
clear_queued (ffmpegdec);
g_free (ffmpegdec->padded);
ffmpegdec->padded = NULL;
ffmpegdec->padded_size = 0;
break;
default:
break;
@ -2239,6 +2269,9 @@ gst_ffmpegdec_set_property (GObject * object,
case PROP_DIRECT_RENDERING:
ffmpegdec->direct_rendering = g_value_get_boolean (value);
break;
case PROP_DO_PADDING:
ffmpegdec->do_padding = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -2261,6 +2294,9 @@ gst_ffmpegdec_get_property (GObject * object,
case PROP_DIRECT_RENDERING:
g_value_set_boolean (value, ffmpegdec->direct_rendering);
break;
case PROP_DO_PADDING:
g_value_set_boolean (value, ffmpegdec->do_padding);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;