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author | Jonathan Matthew <jonathan@kaolin.wh9.net> | 2007-09-19 21:18:27 +0000 |
---|---|---|
committer | Wim Taymans <wim.taymans@gmail.com> | 2007-09-19 21:18:27 +0000 |
commit | b020c43021a1869e103ea4fc1ba6c322ca44515b (patch) | |
tree | 88435830cc62615aff80f08d4ea59b8b82fc5696 | |
parent | d785a925c1339a4783fdedccff42b2de5f4694d3 (diff) | |
download | gst-plugins-bad-b020c43021a1869e103ea4fc1ba6c322ca44515b.tar.gz gst-plugins-bad-b020c43021a1869e103ea4fc1ba6c322ca44515b.tar.bz2 gst-plugins-bad-b020c43021a1869e103ea4fc1ba6c322ca44515b.zip |
ext/faad/gstfaad.c: Don't set channel positions on regular mono and stereo cases.
Original commit message from CVS:
Patch by: Jonathan Matthew <jonathan at kaolin wh9 net>
* ext/faad/gstfaad.c: (gst_faad_chanpos_to_gst),
(gst_faad_srcgetcaps), (gst_faad_update_caps):
Don't set channel positions on regular mono and stereo cases.
Fixes #476370.
-rw-r--r-- | ChangeLog | 9 | ||||
-rw-r--r-- | ext/faad/gstfaad.c | 67 |
2 files changed, 54 insertions, 22 deletions
@@ -1,3 +1,12 @@ +2007-09-19 Wim Taymans <wim.taymans@gmail.com> + + Patch by: Jonathan Matthew <jonathan at kaolin wh9 net> + + * ext/faad/gstfaad.c: (gst_faad_chanpos_to_gst), + (gst_faad_srcgetcaps), (gst_faad_update_caps): + Don't set channel positions on regular mono and stereo cases. + Fixes #476370. + 2007-09-19 Thijs Vermeir <thijsvermeir@gmail.com> * gst/librfb/gstrfbsrc.c: diff --git a/ext/faad/gstfaad.c b/ext/faad/gstfaad.c index 7e719ec0..a2506ab8 100644 --- a/ext/faad/gstfaad.c +++ b/ext/faad/gstfaad.c @@ -440,14 +440,27 @@ gst_faad_chanpos_from_gst (GstAudioChannelPosition * pos, guint num) */ static GstAudioChannelPosition * -gst_faad_chanpos_to_gst (guchar * fpos, guint num) +gst_faad_chanpos_to_gst (GstFaad * faad, guchar * fpos, guint num, + GstAudioChannelPosition * channel_map_failed) { GstAudioChannelPosition *pos = g_new (GstAudioChannelPosition, num); guint n; gboolean unknown_channel = FALSE; + *channel_map_failed = FALSE; + + /* special handling for the common cases for mono and stereo */ + if (num == 1 && fpos[0] == FRONT_CHANNEL_CENTER) { + GST_DEBUG_OBJECT (faad, "mono common case; won't set channel positions"); + return NULL; + } else if (num == 2 && fpos[0] == FRONT_CHANNEL_LEFT + && fpos[1] == FRONT_CHANNEL_RIGHT) { + GST_DEBUG_OBJECT (faad, "stereo common case; won't set channel positions"); + return NULL; + } + for (n = 0; n < num; n++) { - GST_DEBUG ("faad channel %d as %d", n, fpos[n]); + GST_DEBUG_OBJECT (faad, "faad channel %d as %d", n, fpos[n]); switch (fpos[n]) { case FRONT_CHANNEL_LEFT: pos[n] = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT; @@ -481,29 +494,29 @@ gst_faad_chanpos_to_gst (guchar * fpos, guint num) pos[n] = GST_AUDIO_CHANNEL_POSITION_LFE; break; default: - GST_DEBUG ("unknown channel %d at %d", fpos[n], n); + GST_DEBUG_OBJECT (faad, "unknown channel %d at %d", fpos[n], n); unknown_channel = TRUE; break; } } if (unknown_channel) { + g_free (pos); + pos = NULL; switch (num) { case 1:{ - GST_DEBUG ("FAAD reports unknown 1 channel mapping. Forcing to mono"); - pos[0] = GST_AUDIO_CHANNEL_POSITION_FRONT_MONO; + GST_DEBUG_OBJECT (faad, + "FAAD reports unknown 1 channel mapping. Forcing to mono"); break; } case 2:{ - GST_DEBUG ("FAAD reports unknown 2 channel mapping. Forcing to stereo"); - pos[0] = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT; - pos[1] = GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT; + GST_DEBUG_OBJECT (faad, + "FAAD reports unknown 2 channel mapping. Forcing to stereo"); break; } default:{ GST_WARNING ("Unsupported FAAD channel position 0x%x encountered", fpos[n]); - g_free (pos); - pos = NULL; + *channel_map_failed = TRUE; break; } } @@ -523,12 +536,13 @@ gst_faad_srcgetcaps (GstPad * pad) if (!supported_positions) { guchar *supported_fpos = g_new0 (guchar, num_supported_positions); gint n; + gboolean map_failed; for (n = 0; n < num_supported_positions; n++) { supported_fpos[n] = n + FRONT_CHANNEL_CENTER; } - supported_positions = gst_faad_chanpos_to_gst (supported_fpos, - num_supported_positions); + supported_positions = gst_faad_chanpos_to_gst (faad, supported_fpos, + num_supported_positions, &map_failed); g_free (supported_fpos); } @@ -593,15 +607,18 @@ gst_faad_srcgetcaps (GstPad * pad) /* put channel information here */ if (faad->channel_positions) { GstAudioChannelPosition *pos; + gboolean map_failed; - pos = gst_faad_chanpos_to_gst (faad->channel_positions, - faad->channels); - if (!pos) { + pos = gst_faad_chanpos_to_gst (faad, faad->channel_positions, + faad->channels, &map_failed); + if (map_failed) { gst_structure_free (str); continue; } - gst_audio_set_channel_positions (str, pos); - g_free (pos); + if (pos) { + gst_audio_set_channel_positions (str, pos); + g_free (pos); + } } else { gst_audio_set_structure_channel_positions_list (str, supported_positions, num_supported_positions); @@ -1015,6 +1032,7 @@ gst_faad_update_caps (GstFaad * faad, faacDecFrameInfo * info) { GstAudioChannelPosition *pos; gboolean ret; + gboolean channel_map_failed; GstCaps *caps; /* store new negotiation information */ @@ -1033,16 +1051,21 @@ gst_faad_update_caps (GstFaad * faad, faacDecFrameInfo * info) faad->bps = 16 / 8; - pos = gst_faad_chanpos_to_gst (faad->channel_positions, faad->channels); - if (!pos) { + channel_map_failed = FALSE; + pos = + gst_faad_chanpos_to_gst (faad, faad->channel_positions, faad->channels, + &channel_map_failed); + if (channel_map_failed) { GST_DEBUG_OBJECT (faad, "Could not map channel positions"); gst_caps_unref (caps); return FALSE; } - gst_audio_set_channel_positions (gst_caps_get_structure (caps, 0), pos); - g_free (pos); + if (pos) { + gst_audio_set_channel_positions (gst_caps_get_structure (caps, 0), pos); + g_free (pos); + } - GST_DEBUG ("New output caps: %" GST_PTR_FORMAT, caps); + GST_DEBUG_OBJECT (faad, "New output caps: %" GST_PTR_FORMAT, caps); ret = gst_pad_set_caps (faad->srcpad, caps); gst_caps_unref (caps); |