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authorPhilip Gladstone <philipjsg@users.sourceforge.net>2002-09-12 02:31:11 +0000
committerPhilip Gladstone <philipjsg@users.sourceforge.net>2002-09-12 02:31:11 +0000
commita782f209df44c372545ecf8ef29d17fedaa8e75e (patch)
treeaa9119d2ef1fe88b1867f1936348916b82024f3d /ffserver.c
parent75bdb984c7f422232d963facaf4f96887d40530a (diff)
downloadffmpeg-a782f209df44c372545ecf8ef29d17fedaa8e75e.tar.gz
* Add code to pace sending a stream when it is being sent from a file.
We limit the datarate to twice the average datarate (however the first few seconds are sent flat out to help with prebuffering). * Add the initialization of the rc_eq fields and the like for VIDEO codecs. * Add the missing get_arg calls for VideoQxxxx Originally committed as revision 920 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'ffserver.c')
-rw-r--r--ffserver.c30
1 files changed, 29 insertions, 1 deletions
diff --git a/ffserver.c b/ffserver.c
index 0959273e57..448fb65794 100644
--- a/ffserver.c
+++ b/ffserver.c
@@ -325,6 +325,16 @@ static int compute_datarate(DataRateData *drd, INT64 count)
return ((count - drd->count1) * 1000) / (cur_time - drd->time1);
}
+static int get_longterm_datarate(DataRateData *drd, INT64 count)
+{
+ /* You get the first 3 seconds flat out */
+ if (cur_time - drd->time1 < 3000)
+ return 0;
+
+ return compute_datarate(drd, count);
+}
+
+
static void start_children(FFStream *feed)
{
if (no_launch)
@@ -1936,6 +1946,11 @@ int av_read_frame(AVFormatContext *s, AVPacket *pkt)
static int compute_send_delay(HTTPContext *c)
{
+ int datarate = 8 * get_longterm_datarate(&c->datarate, c->data_count);
+
+ if (datarate > c->bandwidth * 2000) {
+ return 1000;
+ }
return 0;
}
@@ -2010,7 +2025,7 @@ static int http_prepare_data(HTTPContext *c)
/* We have timed out */
c->state = HTTPSTATE_SEND_DATA_TRAILER;
} else {
- if (c->is_packetized) {
+ if (1 || c->is_packetized) {
if (compute_send_delay(c) > 0) {
c->state = HTTPSTATE_WAIT;
return 1; /* state changed */
@@ -3278,6 +3293,16 @@ void add_codec(FFStream *stream, AVCodecContext *av)
av->qcompress = 0.5;
av->qblur = 0.5;
+ if (!av->rc_eq)
+ av->rc_eq = "tex^qComp";
+ if (!av->i_quant_factor)
+ av->i_quant_factor = 0.8;
+ if (!av->b_quant_factor)
+ av->b_quant_factor = 1.25;
+ if (!av->b_quant_offset)
+ av->b_quant_offset = 1.25;
+
+
break;
default:
av_abort();
@@ -3705,6 +3730,7 @@ int parse_ffconfig(const char *filename)
video_enc.flags |= CODEC_FLAG_HQ;
}
} else if (!strcasecmp(cmd, "VideoQDiff")) {
+ get_arg(arg, sizeof(arg), &p);
if (stream) {
video_enc.max_qdiff = atoi(arg);
if (video_enc.max_qdiff < 1 || video_enc.max_qdiff > 31) {
@@ -3714,6 +3740,7 @@ int parse_ffconfig(const char *filename)
}
}
} else if (!strcasecmp(cmd, "VideoQMax")) {
+ get_arg(arg, sizeof(arg), &p);
if (stream) {
video_enc.qmax = atoi(arg);
if (video_enc.qmax < 1 || video_enc.qmax > 31) {
@@ -3723,6 +3750,7 @@ int parse_ffconfig(const char *filename)
}
}
} else if (!strcasecmp(cmd, "VideoQMin")) {
+ get_arg(arg, sizeof(arg), &p);
if (stream) {
video_enc.qmin = atoi(arg);
if (video_enc.qmin < 1 || video_enc.qmin > 31) {