mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-07-06 06:35:53 +00:00
vtdec: implement the GL texture upload meta
This commit is contained in:
Alessandro Decina
parent
cdfe90aaba
commit
d95a12e185
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@ -26,12 +26,11 @@
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#endif
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#include "corevideotexturecache.h"
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#include "coremediabuffer.h"
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#include "corevideobuffer.h"
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GstCoreVideoTextureCache *
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gst_core_video_texture_cache_new (GstGLContext * ctx)
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{
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CVReturn err;
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g_return_val_if_fail (ctx != NULL, NULL);
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GstCoreVideoTextureCache *cache = g_new0 (GstCoreVideoTextureCache, 1);
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@ -41,21 +40,21 @@ gst_core_video_texture_cache_new (GstGLContext * ctx)
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CGLPixelFormatAttribute attribs[1] = { 0 };
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int numPixelFormats;
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CGLPixelFormatObj pixelFormat;
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CGLChoosePixelFormat (attribs, &pixelFormat, &numPixelFormats); // 5
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NSOpenGLContext *platform_ctx = (NSOpenGLContext *) gst_gl_context_get_gl_context (ctx);
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err = CVOpenGLTextureCacheCreate (kCFAllocatorDefault, NULL,
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[platform_ctx CGLContextObj], pixelFormat,
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NULL, &cache->cache);
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CGLChoosePixelFormat (attribs, &pixelFormat, &numPixelFormats); // 5
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NSOpenGLContext *platform_ctx =
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(NSOpenGLContext *) gst_gl_context_get_gl_context (ctx);
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CVOpenGLTextureCacheCreate (kCFAllocatorDefault, NULL,
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[platform_ctx CGLContextObj], pixelFormat, NULL, &cache->cache);
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#else
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err = CVOpenGLESTextureCacheCreate (kCFAllocatorDefault, NULL,
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(CVEAGLContext) gst_gl_context_get_gl_context (ctx),
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NULL, &cache->cache);
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CVOpenGLESTextureCacheCreate (kCFAllocatorDefault, NULL,
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(CVEAGLContext) gst_gl_context_get_gl_context (ctx), NULL, &cache->cache);
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#endif
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return cache;
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}
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void gst_core_video_texture_cache_free (GstCoreVideoTextureCache * cache)
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void
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gst_core_video_texture_cache_free (GstCoreVideoTextureCache * cache)
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{
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g_return_if_fail (cache != NULL);
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@ -69,11 +68,13 @@ void gst_core_video_texture_cache_free (GstCoreVideoTextureCache * cache)
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}
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gboolean
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gst_core_video_texture_cache_upload (GstVideoGLTextureUploadMeta * meta, guint texture_id[4])
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gst_core_video_texture_cache_upload (GstVideoGLTextureUploadMeta * meta,
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guint texture_id[4])
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{
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g_return_val_if_fail (meta != NULL, FALSE);
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GstCoreVideoTextureCache *cache = (GstCoreVideoTextureCache *) meta->user_data;
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GstCoreVideoTextureCache *cache =
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(GstCoreVideoTextureCache *) meta->user_data;
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const GstGLFuncs *gl = cache->ctx->gl_vtable;
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#if !HAVE_IOS
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CVOpenGLTextureRef texture = NULL;
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@ -81,16 +82,25 @@ gst_core_video_texture_cache_upload (GstVideoGLTextureUploadMeta * meta, guint t
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CVOpenGLESTextureRef texture = NULL;
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#endif
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GstVideoMeta *video_meta = gst_buffer_get_video_meta (meta->buffer);
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GstCoreMediaMeta *cv_meta = (GstCoreMediaMeta *) gst_buffer_get_meta (meta->buffer,
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gst_core_media_meta_api_get_type ());
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GstCoreMediaMeta *cm_meta =
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(GstCoreMediaMeta *) gst_buffer_get_meta (meta->buffer,
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gst_core_media_meta_api_get_type ());
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GstCoreVideoMeta *cv_meta =
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(GstCoreVideoMeta *) gst_buffer_get_meta (meta->buffer,
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gst_core_video_meta_api_get_type ());
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CVPixelBufferRef pixel_buf;
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if (cm_meta)
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pixel_buf = cm_meta->pixel_buf;
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else
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pixel_buf = cv_meta->pixbuf;
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#if !HAVE_IOS
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CVOpenGLTextureCacheCreateTextureFromImage (kCFAllocatorDefault,
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cache->cache, cv_meta->pixel_buf, NULL, &texture);
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cache->cache, pixel_buf, NULL, &texture);
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#else
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CVOpenGLESTextureCacheCreateTextureFromImage (kCFAllocatorDefault,
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cache->cache, cv_meta->image_buf, NULL, GL_TEXTURE_2D,
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GL_RGBA, video_meta->width, video_meta->height, GL_RGBA, GL_UNSIGNED_BYTE,
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0, &texture);
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cache->cache, cm_meta->image_buf, NULL, GL_TEXTURE_2D,
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GL_RGBA, video_meta->width, video_meta->height, GL_RGBA, GL_UNSIGNED_BYTE,
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0, &texture);
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#endif
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GLuint fboId;
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gl->GenFramebuffers (1, &fboId);
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@ -98,13 +108,14 @@ gst_core_video_texture_cache_upload (GstVideoGLTextureUploadMeta * meta, guint t
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gl->FramebufferTexture2D (GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
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#if !HAVE_IOS
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CVOpenGLTextureGetTarget(texture), CVOpenGLTextureGetName(texture),
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CVOpenGLTextureGetTarget (texture), CVOpenGLTextureGetName (texture),
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#else
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CVOpenGLESTextureGetTarget(texture), CVOpenGLESTextureGetName(texture),
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CVOpenGLESTextureGetTarget (texture), CVOpenGLESTextureGetName (texture),
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#endif
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0);
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gl->BindTexture (GL_TEXTURE_2D, texture_id[0]);
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gl->CopyTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA8, 0, 0, video_meta->width, video_meta->height, 0);
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gl->CopyTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA8, 0, 0, video_meta->width,
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video_meta->height, 0);
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gl->BindTexture (GL_TEXTURE_2D, 0);
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gl->BindFramebuffer (GL_FRAMEBUFFER, 0);
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gl->DeleteFramebuffers (1, &fboId);
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@ -35,13 +35,15 @@
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#include "config.h"
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#endif
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#include <string.h>
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include <gst/video/gstvideodecoder.h>
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#include <gst/gl/gstglcontext.h>
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#include "vtdec.h"
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#include "vtutil.h"
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#include "corevideobuffer.h"
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#include <string.h>
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#include "coremediabuffer.h"
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GST_DEBUG_CATEGORY_STATIC (gst_vtdec_debug_category);
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#define GST_CAT_DEFAULT gst_vtdec_debug_category
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@ -50,6 +52,8 @@ static void gst_vtdec_finalize (GObject * object);
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static gboolean gst_vtdec_start (GstVideoDecoder * decoder);
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static gboolean gst_vtdec_stop (GstVideoDecoder * decoder);
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static gboolean gst_vtdec_decide_allocation (GstVideoDecoder * decoder,
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GstQuery * query);
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static gboolean gst_vtdec_set_format (GstVideoDecoder * decoder,
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GstVideoCodecState * state);
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static gboolean gst_vtdec_flush (GstVideoDecoder * decoder);
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@ -57,7 +61,8 @@ static GstFlowReturn gst_vtdec_finish (GstVideoDecoder * decoder);
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static GstFlowReturn gst_vtdec_handle_frame (GstVideoDecoder * decoder,
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GstVideoCodecFrame * frame);
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static gboolean gst_vtdec_create_session (GstVtdec * vtdec);
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static gboolean gst_vtdec_create_session (GstVtdec * vtdec,
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GstVideoFormat format);
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static void gst_vtdec_invalidate_session (GstVtdec * vtdec);
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static CMSampleBufferRef cm_sample_buffer_from_gst_buffer (GstVtdec * vtdec,
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GstBuffer * buf);
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@ -86,16 +91,6 @@ static GstStaticPadTemplate gst_vtdec_sink_template =
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"video/mpeg, mpegversion=2;" "image/jpeg")
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);
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#ifdef HAVE_IOS
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#define GST_VTDEC_VIDEO_FORMAT_STR "NV12"
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#define GST_VTDEC_VIDEO_FORMAT GST_VIDEO_FORMAT_NV12
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#define GST_VTDEC_CV_VIDEO_FORMAT kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange
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#else
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#define GST_VTDEC_VIDEO_FORMAT_STR "UYVY"
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#define GST_VTDEC_VIDEO_FORMAT GST_VIDEO_FORMAT_UYVY
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#define GST_VTDEC_CV_VIDEO_FORMAT kCVPixelFormatType_422YpCbCr8
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#endif
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/* define EnableHardwareAcceleratedVideoDecoder in < 10.9 */
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#if defined(MAC_OS_X_VERSION_MAX_ALLOWED) && MAC_OS_X_VERSION_MAX_ALLOWED < 1090
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const CFStringRef
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@ -103,8 +98,17 @@ const CFStringRef
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CFSTR ("EnableHardwareAcceleratedVideoDecoder");
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#endif
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#ifdef HAVE_IOS
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#define GST_VTDEC_VIDEO_FORMAT_STR "NV12"
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#else
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#define GST_VTDEC_VIDEO_FORMAT_STR "UYVY"
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#endif
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#define VIDEO_SRC_CAPS \
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GST_VIDEO_CAPS_MAKE("{" GST_VTDEC_VIDEO_FORMAT_STR "}")
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GST_VIDEO_CAPS_MAKE(GST_VTDEC_VIDEO_FORMAT_STR) ";" \
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GST_VIDEO_CAPS_MAKE_WITH_FEATURES \
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(GST_CAPS_FEATURE_META_GST_VIDEO_GL_TEXTURE_UPLOAD_META, \
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"RGBA") ";"
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G_DEFINE_TYPE_WITH_CODE (GstVtdec, gst_vtdec, GST_TYPE_VIDEO_DECODER,
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GST_DEBUG_CATEGORY_INIT (gst_vtdec_debug_category, "vtdec", 0,
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@ -134,6 +138,8 @@ gst_vtdec_class_init (GstVtdecClass * klass)
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gobject_class->finalize = gst_vtdec_finalize;
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video_decoder_class->start = GST_DEBUG_FUNCPTR (gst_vtdec_start);
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video_decoder_class->stop = GST_DEBUG_FUNCPTR (gst_vtdec_stop);
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video_decoder_class->decide_allocation =
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GST_DEBUG_FUNCPTR (gst_vtdec_decide_allocation);
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video_decoder_class->set_format = GST_DEBUG_FUNCPTR (gst_vtdec_set_format);
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video_decoder_class->flush = GST_DEBUG_FUNCPTR (gst_vtdec_flush);
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video_decoder_class->finish = GST_DEBUG_FUNCPTR (gst_vtdec_finish);
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@ -156,6 +162,7 @@ gst_vtdec_finalize (GObject * object)
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g_async_queue_unref (vtdec->reorder_queue);
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G_OBJECT_CLASS (gst_vtdec_parent_class)->finalize (object);
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}
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@ -177,11 +184,64 @@ gst_vtdec_stop (GstVideoDecoder * decoder)
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if (vtdec->session)
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gst_vtdec_invalidate_session (vtdec);
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if (vtdec->texture_cache)
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gst_core_video_texture_cache_free (vtdec->texture_cache);
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vtdec->texture_cache = NULL;
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GST_DEBUG_OBJECT (vtdec, "stop");
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return TRUE;
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}
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static gboolean
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gst_vtdec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query)
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{
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gboolean ret;
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GstVtdec *vtdec = GST_VTDEC (decoder);
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ret =
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GST_VIDEO_DECODER_CLASS (gst_vtdec_parent_class)->decide_allocation
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(decoder, query);
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if (ret) {
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guint idx;
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if (gst_query_find_allocation_meta (query,
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GST_VIDEO_GL_TEXTURE_UPLOAD_META_API_TYPE, &idx)) {
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GstGLContext *context;
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const GstStructure *upload_meta_params;
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gst_query_parse_nth_allocation_meta (query, idx, &upload_meta_params);
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if (gst_structure_get (upload_meta_params, "gst.gl.GstGLContext",
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GST_GL_TYPE_CONTEXT, &context, NULL) && context) {
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vtdec->texture_cache = gst_core_video_texture_cache_new (context);
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gst_object_unref (context);
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}
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}
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}
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return ret;
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}
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static GstVideoFormat
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gst_vtdec_negotiate_output_format (GstVtdec * vtdec)
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{
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GstCaps *caps = NULL;
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GstVideoFormat format;
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GstStructure *structure;
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const gchar *s;
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caps = gst_pad_get_allowed_caps (GST_VIDEO_DECODER_SRC_PAD (vtdec));
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if (!caps)
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caps = gst_pad_query_caps (GST_VIDEO_DECODER_SRC_PAD (vtdec), NULL);
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caps = gst_caps_truncate (caps);
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structure = gst_caps_get_structure (caps, 0);
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s = gst_structure_get_string (structure, "format");
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format = gst_video_format_from_string (s);
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gst_caps_unref (caps);
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return format;
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}
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static gboolean
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gst_vtdec_set_format (GstVideoDecoder * decoder, GstVideoCodecState * state)
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{
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@ -190,6 +250,8 @@ gst_vtdec_set_format (GstVideoDecoder * decoder, GstVideoCodecState * state)
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CMFormatDescriptionRef format_description = NULL;
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const char *caps_name;
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GstVtdec *vtdec = GST_VTDEC (decoder);
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GstVideoFormat output_format;
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GstVideoCodecState *output_state;
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GST_DEBUG_OBJECT (vtdec, "set_format");
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@ -229,12 +291,19 @@ gst_vtdec_set_format (GstVideoDecoder * decoder, GstVideoCodecState * state)
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CFRelease (vtdec->format_description);
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vtdec->format_description = format_description;
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if (!gst_vtdec_create_session (vtdec))
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output_format = gst_vtdec_negotiate_output_format (vtdec);
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if (!gst_vtdec_create_session (vtdec, output_format))
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return FALSE;
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gst_video_decoder_set_output_state (decoder,
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GST_VTDEC_VIDEO_FORMAT, vtdec->video_info.width, vtdec->video_info.height,
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state);
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output_state = gst_video_decoder_set_output_state (decoder,
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output_format, vtdec->video_info.width, vtdec->video_info.height, state);
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output_state->caps = gst_video_info_to_caps (&output_state->info);
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if (output_state->info.finfo->format == GST_VIDEO_FORMAT_RGBA) {
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gst_caps_set_features (output_state->caps, 0,
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gst_caps_features_new
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(GST_CAPS_FEATURE_META_GST_VIDEO_GL_TEXTURE_UPLOAD_META, NULL));
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}
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return TRUE;
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}
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@ -312,12 +381,28 @@ error:
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}
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static gboolean
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gst_vtdec_create_session (GstVtdec * vtdec)
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gst_vtdec_create_session (GstVtdec * vtdec, GstVideoFormat format)
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{
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CFMutableDictionaryRef output_image_buffer_attrs;
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VTDecompressionOutputCallbackRecord callback;
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CFMutableDictionaryRef videoDecoderSpecification;
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OSStatus status;
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guint32 cv_format;
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switch (format) {
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case GST_VIDEO_FORMAT_NV12:
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cv_format = kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange;
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break;
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case GST_VIDEO_FORMAT_UYVY:
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cv_format = kCVPixelFormatType_422YpCbCr8;
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break;
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case GST_VIDEO_FORMAT_RGBA:
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cv_format = kCVPixelFormatType_32BGRA;
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break;
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default:
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g_warn_if_reached ();
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break;
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}
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videoDecoderSpecification =
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CFDictionaryCreateMutable (NULL, 0, &kCFTypeDictionaryKeyCallBacks,
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@ -333,7 +418,7 @@ gst_vtdec_create_session (GstVtdec * vtdec)
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CFDictionaryCreateMutable (NULL, 0, &kCFTypeDictionaryKeyCallBacks,
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&kCFTypeDictionaryValueCallBacks);
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gst_vtutil_dict_set_i32 (output_image_buffer_attrs,
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kCVPixelBufferPixelFormatTypeKey, GST_VTDEC_CV_VIDEO_FORMAT);
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kCVPixelBufferPixelFormatTypeKey, cv_format);
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gst_vtutil_dict_set_i32 (output_image_buffer_attrs, kCVPixelBufferWidthKey,
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vtdec->video_info.width);
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gst_vtutil_dict_set_i32 (output_image_buffer_attrs, kCVPixelBufferHeightKey,
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@ -557,13 +642,12 @@ gst_vtdec_session_output_callback (void *decompression_output_ref_con,
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}
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buf = gst_core_video_buffer_new (image_buffer, &state->info);
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gst_video_codec_state_unref (state);
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frame->output_buffer = buf;
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gst_buffer_copy_into (buf, frame->input_buffer,
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GST_BUFFER_COPY_METADATA | GST_BUFFER_COPY_FLAGS, 0, -1);
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GST_BUFFER_PTS (buf) = pts.value;
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GST_BUFFER_DURATION (buf) = duration.value;
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frame->output_buffer = buf;
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g_async_queue_push_sorted (vtdec->reorder_queue, frame,
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sort_frames_by_pts, NULL);
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@ -590,6 +674,11 @@ gst_vtdec_push_frames_if_needed (GstVtdec * vtdec, gboolean drain,
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GstFlowReturn ret = GST_FLOW_OK;
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GstVideoDecoder *decoder = GST_VIDEO_DECODER (vtdec);
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/* negotiate now so that we know whether we need to use the GL upload meta or
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* not */
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if (gst_pad_check_reconfigure (decoder->srcpad))
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gst_video_decoder_negotiate (decoder);
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if (drain)
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VTDecompressionSessionWaitForAsynchronousFrames (vtdec->session);
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@ -599,6 +688,15 @@ gst_vtdec_push_frames_if_needed (GstVtdec * vtdec, gboolean drain,
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while ((g_async_queue_length (vtdec->reorder_queue) >=
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vtdec->reorder_queue_length) || drain || flush) {
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frame = (GstVideoCodecFrame *) g_async_queue_try_pop (vtdec->reorder_queue);
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if (vtdec->texture_cache != NULL) {
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GstVideoGLTextureType texture_types[4] =
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{ GST_VIDEO_GL_TEXTURE_TYPE_RGBA, 0 };
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gst_buffer_add_video_gl_texture_upload_meta (frame->output_buffer,
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GST_VIDEO_GL_TEXTURE_ORIENTATION_X_NORMAL_Y_NORMAL, 1, texture_types,
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gst_core_video_texture_cache_upload, vtdec->texture_cache, NULL,
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NULL);
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}
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/* we need to check this in case reorder_queue_length=0 (jpeg for
|
||||
* example) or we're draining/flushing
|
||||
*/
|
||||
|
|
|
|||
|
|
@ -25,6 +25,7 @@
|
|||
#include <gst/video/gstvideodecoder.h>
|
||||
#include <CoreMedia/CoreMedia.h>
|
||||
#include <VideoToolbox/VideoToolbox.h>
|
||||
#include "corevideotexturecache.h"
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
|
|
@ -45,6 +46,7 @@ struct _GstVtdec
|
|||
VTDecompressionSessionRef session;
|
||||
GAsyncQueue *reorder_queue;
|
||||
gint reorder_queue_length;
|
||||
GstCoreVideoTextureCache *texture_cache;
|
||||
};
|
||||
|
||||
struct _GstVtdecClass
|
||||
|
|
|
|||
Loading…
Reference in a new issue