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faac: refactor encoder library setup

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This commit is contained in:
Mark Nauwelaerts 2011-12-22 17:14:09 +01:00
parent cec45d6328
commit f76b7c9527
1 changed files with 50 additions and 29 deletions
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79
ext/faac/gstfaac.c
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@ -379,9 +379,8 @@ static gboolean
gst_faac_set_format (GstAudioEncoder * enc, GstAudioInfo * info)
{
GstFaac *faac = GST_FAAC (enc);
faacEncHandle *handle;
gint channels, samplerate, width;
gulong samples, bytes, fmt = 0, bps = 0;
gulong fmt = 0, bps = 0;
gboolean result = FALSE;
/* base class takes care */
@ -408,41 +407,24 @@ gst_faac_set_format (GstAudioEncoder * enc, GstAudioInfo * info)
bps = 4;
}
/* clean up in case of re-configure */
gst_faac_close_encoder (faac);
if (!(handle = faacEncOpen (samplerate, channels, &samples, &bytes)))
goto setup_failed;
/* mind channel count */
samples /= channels;
/* ok, record and set up */
faac->format = fmt;
faac->bps = bps;
faac->handle = handle;
faac->bytes = bytes;
faac->samples = samples;
faac->channels = channels;
faac->samplerate = samplerate;
/* finish up */
result = gst_faac_configure_source_pad (faac);
if (!result)
goto done;
/* report needs to base class */
gst_audio_encoder_set_frame_samples_min (enc, samples);
gst_audio_encoder_set_frame_samples_max (enc, samples);
gst_audio_encoder_set_frame_samples_min (enc, faac->samples);
gst_audio_encoder_set_frame_samples_max (enc, faac->samples);
gst_audio_encoder_set_frame_max (enc, 1);
done:
return result;
/* ERRORS */
setup_failed:
{
GST_ELEMENT_ERROR (faac, LIBRARY, SETTINGS, (NULL), (NULL));
goto done;
}
}
/* check downstream caps to configure format */
@ -504,15 +486,32 @@ gst_faac_negotiate (GstFaac * faac)
}
static gboolean
gst_faac_configure_source_pad (GstFaac * faac)
gst_faac_open_encoder (GstFaac * faac)
{
GstCaps *srccaps;
gboolean ret = FALSE;
faacEncHandle *handle;
faacEncConfiguration *conf;
guint maxbitrate;
gulong samples, bytes;
/* negotiate stream format */
gst_faac_negotiate (faac);
g_return_val_if_fail (faac->samplerate != 0 && faac->channels != 0, FALSE);
/* clean up in case of re-configure */
gst_faac_close_encoder (faac);
if (!(handle = faacEncOpen (faac->samplerate, faac->channels,
&samples, &bytes)))
goto setup_failed;
/* mind channel count */
samples /= faac->channels;
/* record */
faac->handle = handle;
faac->samples = samples;
faac->bytes = bytes;
GST_DEBUG_OBJECT (faac, "faac needs samples %d, output size %d",
faac->samples, faac->bytes);
/* we negotiated caps update current configuration */
conf = faacEncGetCurrentConfiguration (faac->handle);
@ -549,7 +548,7 @@ gst_faac_configure_source_pad (GstFaac * faac)
conf->bandWidth = 0;
if (!faacEncSetConfiguration (faac->handle, conf))
goto set_failed;
goto setup_failed;
/* let's see what really happened,
* note that this may not really match desired rate */
@ -558,6 +557,28 @@ gst_faac_configure_source_pad (GstFaac * faac)
GST_DEBUG_OBJECT (faac, "quantization quality: %ld", conf->quantqual);
GST_DEBUG_OBJECT (faac, "bandwidth: %d Hz", conf->bandWidth);
return TRUE;
/* ERRORS */
setup_failed:
{
GST_ELEMENT_ERROR (faac, LIBRARY, SETTINGS, (NULL), (NULL));
return FALSE;
}
}
static gboolean
gst_faac_configure_source_pad (GstFaac * faac)
{
GstCaps *srccaps;
gboolean ret;
/* negotiate stream format */
gst_faac_negotiate (faac);
if (!gst_faac_open_encoder (faac))
goto set_failed;
/* now create a caps for it all */
srccaps = gst_caps_new_simple ("audio/mpeg",
"mpegversion", G_TYPE_INT, faac->mpegversion,