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ext/ffmpeg/: Do proper locking around avcodec_open() and avcodec_close()

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Original commit message from CVS:
* ext/ffmpeg/gstffmpeg.c: (gst_ffmpeg_avcodec_open),
(gst_ffmpeg_avcodec_close):
* ext/ffmpeg/gstffmpeg.h:
* ext/ffmpeg/gstffmpegdec.c: (gst_ffmpegdec_close),
(gst_ffmpegdec_open):
* ext/ffmpeg/gstffmpegenc.c: (gst_ffmpegenc_dispose),
(gst_ffmpegenc_getcaps), (gst_ffmpegenc_setcaps),
(gst_ffmpegenc_change_state):
Do proper locking around avcodec_open() and avcodec_close()
(fixes #322254, patch by: Sebastien Cote and Luca Ognibene).
This commit is contained in:
Sebastien Cote 2005-12-16 16:23:05 +00:00 committed by Tim-Philipp Müller
parent 83e9f5a5a0
commit 38dc71e266
5 changed files with 54 additions and 13 deletions
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13
ChangeLog
View file

@ -1,3 +1,16 @@
2005-12-16 Tim-Philipp Müller <tim at centricular dot net>
* ext/ffmpeg/gstffmpeg.c: (gst_ffmpeg_avcodec_open),
(gst_ffmpeg_avcodec_close):
* ext/ffmpeg/gstffmpeg.h:
* ext/ffmpeg/gstffmpegdec.c: (gst_ffmpegdec_close),
(gst_ffmpegdec_open):
* ext/ffmpeg/gstffmpegenc.c: (gst_ffmpegenc_dispose),
(gst_ffmpegenc_getcaps), (gst_ffmpegenc_setcaps),
(gst_ffmpegenc_change_state):
Do proper locking around avcodec_open() and avcodec_close()
(fixes #322254, patch by: Sebastien Cote and Luca Ognibene).
2005-12-10 Tim-Philipp Müller <tim at centricular dot net>
* gst-libs/ext/Makefile.am:

25
ext/ffmpeg/gstffmpeg.c
View file

@ -37,6 +37,31 @@
GST_DEBUG_CATEGORY (ffmpeg_debug);
static GStaticMutex gst_avcodec_mutex = G_STATIC_MUTEX_INIT;
int
gst_ffmpeg_avcodec_open (AVCodecContext *avctx, AVCodec *codec) {
int ret;
g_static_mutex_lock (&gst_avcodec_mutex);
ret = avcodec_open (avctx, codec);
g_static_mutex_unlock (&gst_avcodec_mutex);
return ret;
}
int
gst_ffmpeg_avcodec_close (AVCodecContext *avctx) {
int ret;
g_static_mutex_lock (&gst_avcodec_mutex);
ret = avcodec_close (avctx);
g_static_mutex_unlock (&gst_avcodec_mutex);
return ret;
}
#ifndef GST_DISABLE_GST_DEBUG
static void
gst_ffmpeg_log_callback (void * ptr, int level, const char * fmt, va_list vl)

3
ext/ffmpeg/gstffmpeg.h
View file

@ -51,6 +51,9 @@ extern gboolean gst_ffmpegcsp_register (GstPlugin * plugin);
extern gboolean gst_ffmpegscale_register (GstPlugin * plugin);
extern gboolean gst_ffmpegdeinterlace_register (GstPlugin * plugin);
int gst_ffmpeg_avcodec_open (AVCodecContext *avctx, AVCodec *codec);
int gst_ffmpeg_avcodec_close (AVCodecContext *avctx);
G_END_DECLS
extern URLProtocol gstreamer_protocol;

4
ext/ffmpeg/gstffmpegdec.c
View file

@ -384,7 +384,7 @@ gst_ffmpegdec_close (GstFFMpegDec * ffmpegdec)
}
if (ffmpegdec->context->priv_data)
avcodec_close (ffmpegdec->context);
gst_ffmpeg_avcodec_close (ffmpegdec->context);
ffmpegdec->opened = FALSE;
if (ffmpegdec->context->palctrl) {
@ -419,7 +419,7 @@ gst_ffmpegdec_open (GstFFMpegDec * ffmpegdec)
GstFFMpegDecClass *oclass =
(GstFFMpegDecClass *) (G_OBJECT_GET_CLASS (ffmpegdec));
if (avcodec_open (ffmpegdec->context, oclass->in_plugin) < 0)
if (gst_ffmpeg_avcodec_open (ffmpegdec->context, oclass->in_plugin) < 0)
goto could_not_open;
ffmpegdec->opened = TRUE;

22
ext/ffmpeg/gstffmpegenc.c
View file

@ -283,7 +283,7 @@ gst_ffmpegenc_dispose (GObject * object)
/* close old session */
if (ffmpegenc->opened) {
avcodec_close (ffmpegenc->context);
gst_ffmpeg_avcodec_close (ffmpegenc->context);
ffmpegenc->opened = FALSE;
}
@ -338,17 +338,17 @@ gst_ffmpegenc_getcaps (GstPad * pad)
_shut_up_I_am_probing = TRUE;
for (pixfmt = 0; pixfmt < PIX_FMT_NB; pixfmt++) {
ctx->pix_fmt = pixfmt;
if (avcodec_open (ctx, oclass->in_plugin) >= 0 &&
if (gst_ffmpeg_avcodec_open (ctx, oclass->in_plugin) >= 0 &&
ctx->pix_fmt == pixfmt) {
ctx->width = -1;
if (!caps)
caps = gst_caps_new_empty ();
gst_caps_append (caps,
gst_ffmpeg_codectype_to_caps (oclass->in_plugin->type, ctx));
avcodec_close (ctx);
gst_ffmpeg_avcodec_close (ctx);
}
if (ctx->priv_data)
avcodec_close (ctx);
gst_ffmpeg_avcodec_close (ctx);
}
av_free (ctx);
_shut_up_I_am_probing = FALSE;
@ -376,7 +376,7 @@ gst_ffmpegenc_setcaps (GstPad * pad, GstCaps * caps)
/* close old session */
if (ffmpegenc->opened) {
avcodec_close (ffmpegenc->context);
gst_ffmpeg_avcodec_close (ffmpegenc->context);
ffmpegenc->opened = FALSE;
}
@ -417,9 +417,9 @@ gst_ffmpegenc_setcaps (GstPad * pad, GstCaps * caps)
pix_fmt = ffmpegenc->context->pix_fmt;
/* open codec */
if (avcodec_open (ffmpegenc->context, oclass->in_plugin) < 0) {
if (gst_ffmpeg_avcodec_open (ffmpegenc->context, oclass->in_plugin) < 0) {
if (ffmpegenc->context->priv_data)
avcodec_close (ffmpegenc->context);
gst_ffmpeg_avcodec_close (ffmpegenc->context);
GST_DEBUG ("ffenc_%s: Failed to open FFMPEG codec",
oclass->in_plugin->name);
return FALSE;
@ -427,7 +427,7 @@ gst_ffmpegenc_setcaps (GstPad * pad, GstCaps * caps)
/* is the colourspace correct? */
if (pix_fmt != ffmpegenc->context->pix_fmt) {
avcodec_close (ffmpegenc->context);
gst_ffmpeg_avcodec_close (ffmpegenc->context);
GST_DEBUG ("ffenc_%s: AV wants different colourspace (%d given, %d wanted)",
oclass->in_plugin->name, pix_fmt, ffmpegenc->context->pix_fmt);
return FALSE;
@ -452,7 +452,7 @@ gst_ffmpegenc_setcaps (GstPad * pad, GstCaps * caps)
ffmpegenc->context, TRUE);
if (!other_caps) {
avcodec_close (ffmpegenc->context);
gst_ffmpeg_avcodec_close (ffmpegenc->context);
GST_DEBUG ("Unsupported codec - no caps found");
return FALSE;
}
@ -476,7 +476,7 @@ gst_ffmpegenc_setcaps (GstPad * pad, GstCaps * caps)
}
if (!gst_pad_set_caps (ffmpegenc->srcpad, icaps)) {
avcodec_close (ffmpegenc->context);
gst_ffmpeg_avcodec_close (ffmpegenc->context);
gst_caps_unref (icaps);
return FALSE;
}
@ -711,7 +711,7 @@ gst_ffmpegenc_change_state (GstElement * element, GstStateChange transition)
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
if (ffmpegenc->opened) {
avcodec_close (ffmpegenc->context);
gst_ffmpeg_avcodec_close (ffmpegenc->context);
ffmpegenc->opened = FALSE;
}
if (ffmpegenc->cache) {