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vtenc: Fix encoder to work on iOS

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iOS has special stride requirements that we don't know yet, so copy
input buffers into buffers allocated by iOS for now.

Later we should check the stride and probably provide a buffer pool for these
buffers so upstream can directly write in there.
This commit is contained in:
Sebastian Dröge 2014-09-19 14:36:39 +03:00
parent bee1477f08
commit 3c1ccb64eb
1 changed files with 65 additions and 1 deletions
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66
sys/applemedia/vtenc.c
View file

@ -17,10 +17,14 @@
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "vtenc.h"
#include "coremediabuffer.h"
#include "corevideobuffer.h"
#include "vtutil.h"
#define VTENC_DEFAULT_USAGE 6 /* Profile: Baseline Level: 2.1 */
@ -92,6 +96,7 @@ static void gst_vtenc_enqueue_buffer (void *outputCallbackRefCon,
static gboolean gst_vtenc_buffer_is_keyframe (GstVTEnc * self,
CMSampleBufferRef sbuf);
#ifndef HAVE_IOS
static GstVTEncFrame *gst_vtenc_frame_new (GstBuffer * buf,
GstVideoInfo * videoinfo);
static void gst_vtenc_frame_free (GstVTEncFrame * frame);
@ -99,6 +104,7 @@ static void gst_vtenc_frame_free (GstVTEncFrame * frame);
static void gst_pixel_buffer_release_cb (void *releaseRefCon,
const void *dataPtr, size_t dataSize, size_t numberOfPlanes,
const void *planeAddresses[]);
#endif
static GstStaticCaps sink_caps =
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("{ NV12, I420 }"));
@ -676,7 +682,63 @@ gst_vtenc_encode_frame (GstVTEnc * self, GstVideoCodecFrame * frame)
if (meta != NULL) {
pbuf = gst_core_media_buffer_get_pixel_buffer (frame->input_buffer);
}
#ifdef HAVE_IOS
if (pbuf == NULL) {
GstVideoFrame inframe, outframe;
GstBuffer *outbuf;
OSType pixel_format_type;
CVReturn cv_ret;
/* FIXME: iOS has special stride requirements that we don't know yet.
* Copy into a newly allocated pixelbuffer for now. Probably makes
* sense to create a buffer pool around these at some point.
*/
switch (GST_VIDEO_INFO_FORMAT (&self->video_info)) {
case GST_VIDEO_FORMAT_I420:
pixel_format_type = kCVPixelFormatType_420YpCbCr8Planar;
break;
case GST_VIDEO_FORMAT_NV12:
pixel_format_type = kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange;
break;
default:
goto cv_error;
}
if (!gst_video_frame_map (&inframe, &self->video_info, frame->input_buffer,
GST_MAP_READ))
goto cv_error;
cv_ret =
CVPixelBufferCreate (NULL, self->negotiated_width,
self->negotiated_height, pixel_format_type, NULL, &pbuf);
if (cv_ret != kCVReturnSuccess) {
gst_video_frame_unmap (&inframe);
goto cv_error;
}
outbuf = gst_core_video_buffer_new ((CVBufferRef) pbuf, &self->video_info);
if (!gst_video_frame_map (&outframe, &self->video_info, outbuf,
GST_MAP_WRITE)) {
gst_video_frame_unmap (&inframe);
gst_buffer_unref (outbuf);
CVPixelBufferRelease (pbuf);
goto cv_error;
}
if (!gst_video_frame_copy (&outframe, &inframe)) {
gst_video_frame_unmap (&inframe);
gst_buffer_unref (outbuf);
CVPixelBufferRelease (pbuf);
goto cv_error;
}
gst_buffer_unref (outbuf);
gst_video_frame_unmap (&inframe);
gst_video_frame_unmap (&outframe);
}
#else
if (pbuf == NULL) {
GstVTEncFrame *vframe;
CVReturn cv_ret;
@ -733,6 +795,7 @@ gst_vtenc_encode_frame (GstVTEnc * self, GstVideoCodecFrame * frame)
}
}
}
#endif
GST_OBJECT_LOCK (self);
@ -846,6 +909,7 @@ gst_vtenc_buffer_is_keyframe (GstVTEnc * self, CMSampleBufferRef sbuf)
return result;
}
#ifndef HAVE_IOS
static GstVTEncFrame *
gst_vtenc_frame_new (GstBuffer * buf, GstVideoInfo * video_info)
{
@ -875,9 +939,9 @@ gst_pixel_buffer_release_cb (void *releaseRefCon, const void *dataPtr,
size_t dataSize, size_t numberOfPlanes, const void *planeAddresses[])
{
GstVTEncFrame *frame = (GstVTEncFrame *) releaseRefCon;
gst_vtenc_frame_free (frame);
}
#endif
static void
gst_vtenc_register (GstPlugin * plugin,