From ec2e962323f5580ae10b18b53c67b5d8180a3731 Mon Sep 17 00:00:00 2001 From: Xavi Artigas Date: Fri, 27 Jul 2012 16:13:49 +0200 Subject: [PATCH] directsoundsink: Do not overwrite the DS buffer when testing for AC3 support https://bugzilla.gnome.org/show_bug.cgi?id=680706 Conflicts: sys/directsound/gstdirectsoundsink.c --- sys/directsound/gstdirectsoundsink.c | 95 +++++++++++++++++------------------- 1 file changed, 44 insertions(+), 51 deletions(-) diff --git a/sys/directsound/gstdirectsoundsink.c b/sys/directsound/gstdirectsoundsink.c index c575597..9e82bb0 100644 --- a/sys/directsound/gstdirectsoundsink.c +++ b/sys/directsound/gstdirectsoundsink.c @@ -93,7 +93,8 @@ static guint gst_directsound_sink_delay (GstAudioSink * asink); static void gst_directsound_sink_reset (GstAudioSink * asink); static GstCaps *gst_directsound_probe_supported_formats (GstDirectSoundSink * dsoundsink, const GstCaps * template_caps); -static gboolean gst_directsound_sink_query (GstBaseSink * pad, GstQuery * query); +static gboolean gst_directsound_sink_query (GstBaseSink * pad, + GstQuery * query); static void gst_directsound_sink_set_volume (GstDirectSoundSink * sink, gdouble volume, gboolean store); @@ -144,7 +145,8 @@ gst_directsound_sink_class_init (GstDirectSoundSinkClass * klass) GObjectClass *gobject_class = G_OBJECT_CLASS (klass); GstBaseSinkClass *gstbasesink_class = GST_BASE_SINK_CLASS (klass); GstAudioSinkClass *gstaudiosink_class = GST_AUDIO_SINK_CLASS (klass); - GstAudioBaseSinkClass *gstaudiobasesink_class = GST_AUDIO_BASE_SINK_CLASS (klass); + GstAudioBaseSinkClass *gstaudiobasesink_class = + GST_AUDIO_BASE_SINK_CLASS (klass); GstElementClass *element_class = GST_ELEMENT_CLASS (klass); GST_DEBUG_CATEGORY_INIT (directsoundsink_debug, "directsoundsink", 0, @@ -159,8 +161,7 @@ gst_directsound_sink_class_init (GstDirectSoundSinkClass * klass) gstbasesink_class->get_caps = GST_DEBUG_FUNCPTR (gst_directsound_sink_getcaps); - gstbasesink_class->query = - GST_DEBUG_FUNCPTR (gst_directsound_sink_query); + gstbasesink_class->query = GST_DEBUG_FUNCPTR (gst_directsound_sink_query); gstaudiobasesink_class->payload = GST_DEBUG_FUNCPTR (gst_directsound_sink_payload); @@ -312,8 +313,7 @@ gst_directsound_sink_acceptcaps (GstBaseSink * sink, GstQuery * query) if (pad_caps) { gboolean cret = gst_caps_can_intersect (pad_caps, caps); gst_caps_unref (pad_caps); - if (!cret) - { + if (!cret) { GST_DEBUG_OBJECT (dsink, "Can't intersect caps, not accepting caps"); goto done; } @@ -321,22 +321,19 @@ gst_directsound_sink_acceptcaps (GstBaseSink * sink, GstQuery * query) /* If we've not got fixed caps, creating a stream might fail, so let's just * return from here with default acceptcaps behaviour */ - if (!gst_caps_is_fixed (caps)) - { + if (!gst_caps_is_fixed (caps)) { GST_DEBUG_OBJECT (dsink, "Caps are not fixed, not accepting caps"); goto done; } spec.latency_time = GST_SECOND; - if (!gst_audio_ring_buffer_parse_caps (&spec, caps)) - { + if (!gst_audio_ring_buffer_parse_caps (&spec, caps)) { GST_DEBUG_OBJECT (dsink, "Failed to parse caps, not accepting"); goto done; } /* Make sure input is framed (one frame per buffer) and can be payloaded */ - switch (spec.type) - { + switch (spec.type) { case GST_AUDIO_RING_BUFFER_FORMAT_TYPE_AC3: case GST_AUDIO_RING_BUFFER_FORMAT_TYPE_DTS: { @@ -345,8 +342,7 @@ gst_directsound_sink_acceptcaps (GstBaseSink * sink, GstQuery * query) gst_structure_get_boolean (st, "framed", &framed); gst_structure_get_boolean (st, "parsed", &parsed); - if ((!framed && !parsed) || gst_audio_iec61937_frame_size (&spec) <= 0) - { + if ((!framed && !parsed) || gst_audio_iec61937_frame_size (&spec) <= 0) { GST_DEBUG_OBJECT (dsink, "Wrong AC3/DTS caps, not accepting"); goto done; } @@ -716,6 +712,7 @@ gst_directsound_probe_supported_formats (GstDirectSoundSink * dsoundsink, WAVEFORMATEX wfx; GstCaps *caps; GstCaps *tmp, *tmp2; + LPDIRECTSOUNDBUFFER tmpBuffer; caps = gst_caps_copy (template_caps); @@ -742,7 +739,7 @@ gst_directsound_probe_supported_formats (GstDirectSoundSink * dsoundsink, descSecondary.lpwfxFormat = &wfx; hRes = IDirectSound_CreateSoundBuffer (dsoundsink->pDS, &descSecondary, - &dsoundsink->pDSBSecondary, NULL); + &tmpBuffer, NULL); if (FAILED (hRes)) { GST_INFO_OBJECT (dsoundsink, "AC3 passthrough not supported " "(IDirectSound_CreateSoundBuffer returned: %s)\n", @@ -759,7 +756,7 @@ gst_directsound_probe_supported_formats (GstDirectSoundSink * dsoundsink, caps = tmp2; } else { GST_INFO_OBJECT (dsoundsink, "AC3 passthrough supported"); - hRes = IDirectSoundBuffer_Release (dsoundsink->pDSBSecondary); + hRes = IDirectSoundBuffer_Release (tmpBuffer); if (FAILED (hRes)) { GST_DEBUG_OBJECT (dsoundsink, "(IDirectSoundBuffer_Release returned: %s)\n", @@ -785,47 +782,43 @@ gst_directsound_probe_supported_formats (GstDirectSoundSink * dsoundsink, static GstBuffer * gst_directsound_sink_payload (GstAudioBaseSink * sink, GstBuffer * buf) { - if (gst_directsound_sink_is_spdif_format (&sink->ringbuffer->spec)) - { - gint framesize = gst_audio_iec61937_frame_size (&sink->ringbuffer->spec); - GstBuffer *out; - GstMapInfo infobuf, infoout; - gboolean success; + if (gst_directsound_sink_is_spdif_format (&sink->ringbuffer->spec)) { + gint framesize = gst_audio_iec61937_frame_size (&sink->ringbuffer->spec); + GstBuffer *out; + GstMapInfo infobuf, infoout; + gboolean success; - if (framesize <= 0) - return NULL; + if (framesize <= 0) + return NULL; - out = gst_buffer_new_and_alloc (framesize); - - if (!gst_buffer_map (buf, &infobuf, GST_MAP_READWRITE)) - { - gst_buffer_unref (out); - return NULL; - } - if (!gst_buffer_map (out, &infoout, GST_MAP_READWRITE)) - { - gst_buffer_unmap (buf, &infobuf); - gst_buffer_unref (out); - return NULL; - } - success = gst_audio_iec61937_payload (infobuf.data, infobuf.size, - infoout.data, infoout.size, &sink->ringbuffer->spec); - if (!success) { - gst_buffer_unmap (out, &infoout); - gst_buffer_unmap (buf, &infobuf); - gst_buffer_unref (out); - return NULL; - } + out = gst_buffer_new_and_alloc (framesize); - gst_buffer_copy_into (out, buf, GST_BUFFER_COPY_ALL, 0, -1); - /* Fix endianness */ - _swab ((gchar *) infoout.data, (gchar *) infoout.data, infobuf.size); + if (!gst_buffer_map (buf, &infobuf, GST_MAP_READWRITE)) { + gst_buffer_unref (out); + return NULL; + } + if (!gst_buffer_map (out, &infoout, GST_MAP_READWRITE)) { + gst_buffer_unmap (buf, &infobuf); + gst_buffer_unref (out); + return NULL; + } + success = gst_audio_iec61937_payload (infobuf.data, infobuf.size, + infoout.data, infoout.size, &sink->ringbuffer->spec); + if (!success) { gst_buffer_unmap (out, &infoout); gst_buffer_unmap (buf, &infobuf); - return out; + gst_buffer_unref (out); + return NULL; } - else - return gst_buffer_ref (buf); + + gst_buffer_copy_into (out, buf, GST_BUFFER_COPY_ALL, 0, -1); + /* Fix endianness */ + _swab ((gchar *) infoout.data, (gchar *) infoout.data, infobuf.size); + gst_buffer_unmap (out, &infoout); + gst_buffer_unmap (buf, &infobuf); + return out; + } else + return gst_buffer_ref (buf); } static void -- 2.7.4