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ffmpeg: Use stack-allocated channel positions array

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This commit is contained in:
Sebastian Dröge 2012-01-10 10:01:26 +01:00
parent d2702a091e
commit 42bc8f5ad7
2 changed files with 10 additions and 23 deletions
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32
ext/ffmpeg/gstffmpegcodecmap.c
View file

@ -102,11 +102,11 @@ static const struct
CH_STEREO_RIGHT, GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT} CH_STEREO_RIGHT, GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT}
}; };
static GstAudioChannelPosition * static gboolean
gst_ff_channel_layout_to_gst (guint64 channel_layout, guint channels) gst_ff_channel_layout_to_gst (guint64 channel_layout, guint channels,
GstAudioChannelPosition * pos)
{ {
guint nchannels = 0, i, j; guint nchannels = 0, i, j;
GstAudioChannelPosition *pos = NULL;
gboolean none_layout = FALSE; gboolean none_layout = FALSE;
for (i = 0; i < 64; i++) { for (i = 0; i < 64; i++) {
@ -123,11 +123,9 @@ gst_ff_channel_layout_to_gst (guint64 channel_layout, guint channels)
if (nchannels != channels) { if (nchannels != channels) {
GST_ERROR ("Number of channels is different (%u != %u)", channels, GST_ERROR ("Number of channels is different (%u != %u)", channels,
nchannels); nchannels);
return NULL; return FALSE;
} }
pos = g_new (GstAudioChannelPosition, nchannels);
for (i = 0, j = 0; i < G_N_ELEMENTS (_ff_to_gst_layout); i++) { for (i = 0, j = 0; i < G_N_ELEMENTS (_ff_to_gst_layout); i++) {
if ((channel_layout & _ff_to_gst_layout[i].ff) != 0) { if ((channel_layout & _ff_to_gst_layout[i].ff) != 0) {
pos[j++] = _ff_to_gst_layout[i].gst; pos[j++] = _ff_to_gst_layout[i].gst;
@ -156,21 +154,14 @@ gst_ff_channel_layout_to_gst (guint64 channel_layout, guint channels)
pos[0] = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT; pos[0] = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT;
pos[1] = GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT; pos[1] = GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT;
} else if (channel_layout == 0) { } else if (channel_layout == 0) {
g_free (pos); return FALSE;
pos = NULL;
} else { } else {
for (i = 0; i < nchannels; i++) for (i = 0; i < nchannels; i++)
pos[i] = GST_AUDIO_CHANNEL_POSITION_NONE; pos[i] = GST_AUDIO_CHANNEL_POSITION_NONE;
} }
} }
if (nchannels == 1 && pos[0] == GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER) { return TRUE;
GST_DEBUG ("mono common case; won't set channel positions");
g_free (pos);
pos = NULL;
}
return pos;
} }
/* this macro makes a caps width fixed or unfixed width/height /* this macro makes a caps width fixed or unfixed width/height
@ -305,10 +296,7 @@ gst_ff_vid_caps_new (AVCodecContext * context, enum CodecID codec_id,
* default unfixed setting */ * default unfixed setting */
if (!caps) { if (!caps) {
GST_DEBUG ("Creating default caps"); GST_DEBUG ("Creating default caps");
caps = gst_caps_new_simple (mimetype, caps = gst_caps_new_simple (mimetype, NULL, NULL, NULL);
"width", GST_TYPE_INT_RANGE, 16, 4096,
"height", GST_TYPE_INT_RANGE, 16, 4096,
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
} }
for (i = 0; i < gst_caps_get_size (caps); i++) { for (i = 0; i < gst_caps_get_size (caps); i++) {
@ -335,7 +323,7 @@ gst_ff_aud_caps_new (AVCodecContext * context, enum CodecID codec_id,
/* fixed, non-probing context */ /* fixed, non-probing context */
if (context != NULL && context->channels != -1) { if (context != NULL && context->channels != -1) {
GstAudioInfo info; GstAudioInfo info;
GstAudioChannelPosition *pos; GstAudioChannelPosition pos[64];
guint64 channel_layout = context->channel_layout; guint64 channel_layout = context->channel_layout;
gst_audio_info_init (&info); gst_audio_info_init (&info);
@ -364,15 +352,13 @@ gst_ff_aud_caps_new (AVCodecContext * context, enum CodecID codec_id,
"rate", G_TYPE_INT, context->sample_rate, "rate", G_TYPE_INT, context->sample_rate,
"channels", G_TYPE_INT, context->channels, NULL); "channels", G_TYPE_INT, context->channels, NULL);
pos = gst_ff_channel_layout_to_gst (channel_layout, context->channels); if (gst_ff_channel_layout_to_gst (channel_layout, context->channels, pos)) {
if (pos != NULL) {
guint64 mask; guint64 mask;
if (gst_audio_channel_positions_to_mask (pos, context->channels, &mask)) { if (gst_audio_channel_positions_to_mask (pos, context->channels, &mask)) {
gst_caps_set_simple (caps, "channel-mask", GST_TYPE_BITMASK, mask, gst_caps_set_simple (caps, "channel-mask", GST_TYPE_BITMASK, mask,
NULL); NULL);
} }
g_free (pos);
} }
} else { } else {
gint maxchannels = 2; gint maxchannels = 2;

1
ext/ffmpeg/gstffmpegdec.c
View file

@ -2226,6 +2226,7 @@ gst_ffmpegdec_audio_frame (GstFFMpegDec * ffmpegdec,
"Decode audio: len=%d, have_data=%d", len, have_data); "Decode audio: len=%d, have_data=%d", len, have_data);
if (len >= 0 && have_data > 0) { if (len >= 0 && have_data > 0) {
/* FIXME: Reorder here */
/* Buffer size */ /* Buffer size */
gst_buffer_unmap (*outbuf, odata, have_data); gst_buffer_unmap (*outbuf, odata, have_data);