mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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vtenc: apply DTS offset to ensure DTS <= PTS
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4282>
This commit is contained in:
Andoni Morales Alastruey
GStreamer Marge Bot
parent
93db77ea3a
commit
23812bbc92
13 changed files with 157 additions and 30 deletions
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@ -16,12 +16,14 @@ applemedia_args = [
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'-Dgst_core_media_buffer_get_type=gst_core_media_buffer_priv_get_type',
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'-Dgst_core_media_buffer_get_pixel_buffer=gst_core_media_buffer_priv_get_pixel_buffer',
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'-Dgst_core_video_buffer_new=gst_core_video_buffer_priv_new',
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'-Dgst_core_video_buffer_get_type=gst_core_video_buffer_priv_get_type'
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'-Dgst_core_video_buffer_get_type=gst_core_video_buffer_priv_get_type',
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'-DGST_USE_UNSTABLE_API'
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]
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applemedia_objc_args = []
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applemedia_option = get_option('applemedia')
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if not ['darwin', 'ios'].contains(host_system) or applemedia_option.disabled()
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applemedia_found_deps = false
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subdir_done()
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endif
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@ -30,7 +30,6 @@
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#if defined(APPLEMEDIA_MOLTENVK)
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#include <gst/vulkan/vulkan.h>
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#endif
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#define GST_USE_UNSTABLE_API
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#include <gst/codecparsers/gsth264parser.h>
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G_BEGIN_DECLS
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@ -87,6 +87,8 @@ GST_DEBUG_CATEGORY (gst_vtenc_debug);
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#define GST_VTENC_CODEC_DETAILS_QDATA \
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g_quark_from_static_string ("vtenc-codec-details")
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#define CMTIME_TO_GST_CLOCK_TIME(time) time.value / (time.timescale / GST_SECOND)
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/* define EnableHardwareAcceleratedVideoEncoder 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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@ -241,7 +243,7 @@ gst_vtenc_base_init (GstVTEncClass * klass)
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if (__builtin_available (macOS 13.0, *)) {
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/* Can't negate a __builtin_available check */
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} else {
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/* Disable ARGB64/RGBA64 if we're on M1 Pro/Max and macOS < 13.0
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/* Disable ARGB64/RGBA64 if we're on M1 Pro/Max and macOS < 13.0
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* due to a bug within VideoToolbox which causes encoding to fail. */
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retval = sysctlbyname ("machdep.cpu.brand_string", &cpu_name, &cpu_len,
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NULL, 0);
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@ -714,6 +716,9 @@ gst_vtenc_start (GstVideoEncoder * enc)
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{
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GstVTEnc *self = GST_VTENC_CAST (enc);
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/* DTS can be negative if b-frames are enabled */
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gst_video_encoder_set_min_pts (enc, GST_SECOND * 60 * 60 * 1000);
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self->cur_outframes = g_async_queue_new ();
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return TRUE;
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@ -751,13 +756,12 @@ gst_vtenc_stop (GstVideoEncoder * enc)
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return TRUE;
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}
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static CFStringRef
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gst_vtenc_h264_profile_level_key (GstVTEnc * self, const gchar * profile,
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static gboolean
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gst_vtenc_h264_parse_profile_level_key (GstVTEnc * self, const gchar * profile,
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const gchar * level_arg)
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{
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char level[64];
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gchar *key = NULL;
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CFStringRef ret = NULL;
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if (profile == NULL)
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profile = "main";
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@ -768,13 +772,16 @@ gst_vtenc_h264_profile_level_key (GstVTEnc * self, const gchar * profile,
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if (!strcmp (profile, "constrained-baseline") ||
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!strcmp (profile, "baseline")) {
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profile = "Baseline";
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self->h264_profile = GST_H264_PROFILE_BASELINE;
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} else if (g_str_has_prefix (profile, "high")) {
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profile = "High";
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self->h264_profile = GST_H264_PROFILE_HIGH;
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} else if (!strcmp (profile, "main")) {
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profile = "Main";
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self->h264_profile = GST_H264_PROFILE_MAIN;
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} else {
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GST_ERROR_OBJECT (self, "invalid profile: %s", profile);
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return ret;
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return FALSE;
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}
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if (strlen (level) == 1) {
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@ -785,22 +792,21 @@ gst_vtenc_h264_profile_level_key (GstVTEnc * self, const gchar * profile,
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}
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key = g_strdup_printf ("H264_%s_%s", profile, level);
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ret = CFStringCreateWithBytes (NULL, (const guint8 *) key, strlen (key),
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self->profile_level =
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CFStringCreateWithBytes (NULL, (const guint8 *) key, strlen (key),
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kCFStringEncodingASCII, 0);
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GST_INFO_OBJECT (self, "negotiated profile and level %s", key);
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g_free (key);
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return ret;
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return TRUE;
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}
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static CFStringRef
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gst_vtenc_hevc_profile_level_key (GstVTEnc * self, const gchar * profile,
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static gboolean
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gst_vtenc_hevc_parse_profile_level_key (GstVTEnc * self, const gchar * profile,
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const gchar * level_arg)
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{
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gchar *key = NULL;
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CFStringRef ret = NULL;
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if (profile == NULL || !strcmp (profile, "main"))
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profile = "Main";
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@ -812,18 +818,18 @@ gst_vtenc_hevc_profile_level_key (GstVTEnc * self, const gchar * profile,
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profile = "Main42210";
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else {
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GST_ERROR_OBJECT (self, "invalid profile: %s", profile);
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return ret;
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return FALSE;
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}
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/* VT does not support specific levels for HEVC */
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key = g_strdup_printf ("HEVC_%s_AutoLevel", profile);
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ret = CFStringCreateWithBytes (NULL, (const guint8 *) key, strlen (key),
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self->profile_level =
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CFStringCreateWithBytes (NULL, (const guint8 *) key, strlen (key),
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kCFStringEncodingASCII, 0);
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GST_INFO_OBJECT (self, "negotiated profile and level %s", key);
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g_free (key);
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return ret;
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return TRUE;
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}
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static gboolean
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@ -835,20 +841,11 @@ gst_vtenc_negotiate_profile_and_level (GstVTEnc * self, GstStructure * s)
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if (self->profile_level)
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CFRelease (self->profile_level);
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if (self->specific_format_id == kCMVideoCodecType_HEVC)
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self->profile_level =
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gst_vtenc_hevc_profile_level_key (self, profile, level);
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else
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self->profile_level =
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gst_vtenc_h264_profile_level_key (self, profile, level);
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if (self->profile_level == NULL) {
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GST_ERROR_OBJECT (self, "unsupported profile '%s' or level '%s'",
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profile, level);
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return FALSE;
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if (self->specific_format_id == kCMVideoCodecType_HEVC) {
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return gst_vtenc_hevc_parse_profile_level_key (self, profile, level);
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} else {
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return gst_vtenc_h264_parse_profile_level_key (self, profile, level);
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}
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return TRUE;
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}
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static gboolean
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@ -1226,6 +1223,43 @@ gst_vtenc_set_colorimetry (GstVTEnc * self, VTCompressionSessionRef session)
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}
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}
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static gboolean
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gst_vtenc_compute_dts_offset (GstVTEnc * self, gint fps_n, gint fps_d)
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{
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gint num_offset_frames;
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// kVTCompressionPropertyKey_AllowFrameReordering enables B-Frames
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if (!self->allow_frame_reordering ||
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(self->specific_format_id == kCMVideoCodecType_H264
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&& self->h264_profile == GST_H264_PROFILE_BASELINE)) {
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num_offset_frames = 0;
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} else {
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if (self->specific_format_id == kCMVideoCodecType_H264) {
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// H264 encoder always sets 2 max_num_ref_frames
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num_offset_frames = 1;
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} else {
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// HEVC encoder uses B-pyramid
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num_offset_frames = 2;
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}
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}
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if (fps_d == 0 && num_offset_frames != 0) {
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GST_ERROR_OBJECT (self,
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"Variable framerate is not supported with B-Frames");
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return FALSE;
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}
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self->dts_offset =
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gst_util_uint64_scale (num_offset_frames * GST_SECOND,
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self->video_info.fps_d, self->video_info.fps_n);
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GST_DEBUG_OBJECT (self, "DTS Offset:%" GST_TIME_FORMAT,
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GST_TIME_ARGS (self->dts_offset));
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return TRUE;
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}
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static VTCompressionSessionRef
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gst_vtenc_create_session (GstVTEnc * self)
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{
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@ -1271,6 +1305,13 @@ gst_vtenc_create_session (GstVTEnc * self)
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/* This was set in gst_vtenc_negotiate_specific_format_details() */
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g_assert_cmpint (self->specific_format_id, !=, 0);
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if (self->profile_level) {
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if (!gst_vtenc_compute_dts_offset (self, self->video_info.fps_d,
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self->video_info.fps_n)) {
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goto beach;
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}
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}
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status = VTCompressionSessionCreate (NULL,
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self->negotiated_width, self->negotiated_height,
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self->specific_format_id, encoder_spec, pb_attrs, NULL,
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@ -1587,6 +1628,18 @@ gst_vtenc_update_latency (GstVTEnc * self)
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CFRelease (value);
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}
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static void
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gst_vtenc_update_timestamps (GstVTEnc * self, GstVideoCodecFrame * frame,
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CMSampleBufferRef sample_buf)
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{
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CMTime pts = CMSampleBufferGetOutputPresentationTimeStamp (sample_buf);
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frame->pts = CMTIME_TO_GST_CLOCK_TIME (pts);
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CMTime dts = CMSampleBufferGetOutputDecodeTimeStamp (sample_buf);
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if (CMTIME_IS_VALID (dts)) {
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frame->dts = CMTIME_TO_GST_CLOCK_TIME (dts) - self->dts_offset;
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}
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}
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static GstFlowReturn
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gst_vtenc_encode_frame (GstVTEnc * self, GstVideoCodecFrame * frame)
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{
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@ -1848,6 +1901,8 @@ gst_vtenc_enqueue_buffer (void *outputCallbackRefCon,
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* to enable the use of the video meta API on the core media buffer */
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frame->output_buffer = gst_core_media_buffer_new (sampleBuffer, FALSE, NULL);
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gst_vtenc_update_timestamps (self, frame, sampleBuffer);
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beach:
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/* needed anyway so the frame will be released */
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if (frame)
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@ -21,6 +21,7 @@
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#define __GST_VTENC_H__
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#include <gst/gst.h>
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#include <gst/codecparsers/gsth264parser.h>
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#include <gst/video/video.h>
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#include <VideoToolbox/VideoToolbox.h>
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@ -60,6 +61,7 @@ struct _GstVTEnc
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CMVideoCodecType specific_format_id;
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CFStringRef profile_level;
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GstH264Profile h264_profile;
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guint bitrate;
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gboolean allow_frame_reordering;
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gboolean realtime;
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@ -81,6 +83,7 @@ struct _GstVTEnc
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GstVideoInfo video_info;
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VTCompressionSessionRef session;
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CFDictionaryRef keyframe_props;
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GstClockTime dts_offset;
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GAsyncQueue * cur_outframes;
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};
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@ -8,6 +8,10 @@ tests = [
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{'path': 'testsrcbin/caps_spec'},
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{'path': 'codectimestamper/h264_propagate_caps'},
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{'path': 'wpe/load_bytes_first', 'skip': not building_wpe},
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{'path': 'vtenc/vtenc_h264', 'skip': not applemedia_found_deps},
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{'path': 'vtenc/vtenc_h264_b_frames', 'skip': not applemedia_found_deps},
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{'path': 'vtenc/vtenc_h265', 'skip': not applemedia_found_deps},
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{'path': 'vtenc/vtenc_h265_b_frames', 'skip': not applemedia_found_deps},
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]
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env = environment()
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@ -0,0 +1,7 @@
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meta,
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args = {
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"videotestsrc num-buffers=5 ! video/x-raw,framerate=25/1,width=320,height=240 ! vtenc_h264 name=enc allow-frame-reordering=false ! fakesink",
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},
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configs = {
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"$(validateflow), pad=enc:src, record-buffers=true",
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}
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@ -0,0 +1,9 @@
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event stream-start: GstEventStreamStart, flags=(GstStreamFlags)GST_STREAM_FLAG_NONE, group-id=(uint)1;
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event caps: video/x-h264, alignment=(string)au, chroma-site=(string)jpeg, codec_data=(buffer)014d000dffe1000d274d000dab40a0fd350601060201000428ee3c80, colorimetry=(string)bt601, framerate=(fraction)25/1, height=(int)240, interlace-mode=(string)progressive, level=(string)1.3, multiview-flags=(GstVideoMultiviewFlagsSet)0:ffffffff:/right-view-first/left-flipped/left-flopped/right-flipped/right-flopped/half-aspect/mixed-mono, multiview-mode=(string)mono, pixel-aspect-ratio=(fraction)1/1, profile=(string)main, stream-format=(string)avc, width=(int)320;
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event segment: format=TIME, start=1000:00:00.000000000, offset=0:00:00.000000000, stop=none, time=0:00:00.000000000, base=0:00:00.000000000, position=1000:00:00.000000000
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buffer: dts=1000:00:00.000000000, pts=1000:00:00.000000000, dur=0:00:00.040000000, flags=discont marker tag-memory, meta=GstCoreMediaMeta
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buffer: dts=1000:00:00.040000000, pts=1000:00:00.040000000, dur=0:00:00.040000000, flags=marker delta-unit tag-memory, meta=GstCoreMediaMeta
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buffer: dts=1000:00:00.080000000, pts=1000:00:00.080000000, dur=0:00:00.040000000, flags=marker delta-unit tag-memory, meta=GstCoreMediaMeta
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buffer: dts=1000:00:00.120000000, pts=1000:00:00.120000000, dur=0:00:00.040000000, flags=marker delta-unit tag-memory, meta=GstCoreMediaMeta
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buffer: dts=1000:00:00.160000000, pts=1000:00:00.160000000, dur=0:00:00.040000000, flags=marker delta-unit tag-memory, meta=GstCoreMediaMeta
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event eos: (no structure)
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@ -0,0 +1,7 @@
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meta,
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args = {
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"videotestsrc num-buffers=5 ! video/x-raw,framerate=25/1,width=320,height=240 ! vtenc_h264 name=enc allow-frame-reordering=true ! fakesink",
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},
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configs = {
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"$(validateflow), pad=enc:src, record-buffers=true",
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}
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@ -0,0 +1,9 @@
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event stream-start: GstEventStreamStart, flags=(GstStreamFlags)GST_STREAM_FLAG_NONE, group-id=(uint)1;
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event caps: video/x-h264, alignment=(string)au, chroma-site=(string)jpeg, codec_data=(buffer)014d000dffe1000d274d000dab60a0fd350601060201000428ee3c80, colorimetry=(string)bt601, framerate=(fraction)25/1, height=(int)240, interlace-mode=(string)progressive, level=(string)1.3, multiview-flags=(GstVideoMultiviewFlagsSet)0:ffffffff:/right-view-first/left-flipped/left-flopped/right-flipped/right-flopped/half-aspect/mixed-mono, multiview-mode=(string)mono, pixel-aspect-ratio=(fraction)1/1, profile=(string)main, stream-format=(string)avc, width=(int)320;
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event segment: format=TIME, start=1000:00:00.000000000, offset=0:00:00.000000000, stop=none, time=0:00:00.000000000, base=0:00:00.000000000, position=1000:00:00.000000000
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buffer: dts=999:59:59.960000000, pts=1000:00:00.000000000, dur=0:00:00.040000000, flags=discont marker tag-memory, meta=GstCoreMediaMeta
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buffer: dts=1000:00:00.000000000, pts=1000:00:00.080000000, dur=0:00:00.040000000, flags=marker delta-unit tag-memory, meta=GstCoreMediaMeta
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buffer: dts=1000:00:00.040000000, pts=1000:00:00.040000000, dur=0:00:00.040000000, flags=marker delta-unit tag-memory, meta=GstCoreMediaMeta
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buffer: dts=1000:00:00.080000000, pts=1000:00:00.160000000, dur=0:00:00.040000000, flags=marker delta-unit tag-memory, meta=GstCoreMediaMeta
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buffer: dts=1000:00:00.120000000, pts=1000:00:00.120000000, dur=0:00:00.040000000, flags=marker delta-unit tag-memory, meta=GstCoreMediaMeta
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event eos: (no structure)
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@ -0,0 +1,7 @@
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meta,
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args = {
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"videotestsrc num-buffers=5 ! video/x-raw,framerate=25/1,width=320,height=240 ! vtenc_h264 name=enc allow-frame-reordering=false ! fakesink",
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},
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configs = {
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"$(validateflow), pad=enc:src, record-buffers=true",
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}
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@ -0,0 +1,9 @@
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event stream-start: GstEventStreamStart, flags=(GstStreamFlags)GST_STREAM_FLAG_NONE, group-id=(uint)1;
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event caps: video/x-h264, alignment=(string)au, chroma-site=(string)jpeg, codec_data=(buffer)014d000dffe1000d274d000dab40a0fd350601060201000428ee3c80, colorimetry=(string)bt601, framerate=(fraction)25/1, height=(int)240, interlace-mode=(string)progressive, level=(string)1.3, multiview-flags=(GstVideoMultiviewFlagsSet)0:ffffffff:/right-view-first/left-flipped/left-flopped/right-flipped/right-flopped/half-aspect/mixed-mono, multiview-mode=(string)mono, pixel-aspect-ratio=(fraction)1/1, profile=(string)main, stream-format=(string)avc, width=(int)320;
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event segment: format=TIME, start=1000:00:00.000000000, offset=0:00:00.000000000, stop=none, time=0:00:00.000000000, base=0:00:00.000000000, position=1000:00:00.000000000
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buffer: dts=1000:00:00.000000000, pts=1000:00:00.000000000, dur=0:00:00.040000000, flags=discont marker tag-memory, meta=GstCoreMediaMeta
|
||||
buffer: dts=1000:00:00.040000000, pts=1000:00:00.040000000, dur=0:00:00.040000000, flags=marker delta-unit tag-memory, meta=GstCoreMediaMeta
|
||||
buffer: dts=1000:00:00.080000000, pts=1000:00:00.080000000, dur=0:00:00.040000000, flags=marker delta-unit tag-memory, meta=GstCoreMediaMeta
|
||||
buffer: dts=1000:00:00.120000000, pts=1000:00:00.120000000, dur=0:00:00.040000000, flags=marker delta-unit tag-memory, meta=GstCoreMediaMeta
|
||||
buffer: dts=1000:00:00.160000000, pts=1000:00:00.160000000, dur=0:00:00.040000000, flags=marker delta-unit tag-memory, meta=GstCoreMediaMeta
|
||||
event eos: (no structure)
|
||||
|
|
@ -0,0 +1,7 @@
|
|||
meta,
|
||||
args = {
|
||||
"videotestsrc num-buffers=5 ! video/x-raw,framerate=25/1,width=320,height=240 ! vtenc_h264 name=enc allow-frame-reordering=true ! fakesink",
|
||||
},
|
||||
configs = {
|
||||
"$(validateflow), pad=enc:src, record-buffers=true",
|
||||
}
|
||||
|
|
@ -0,0 +1,9 @@
|
|||
event stream-start: GstEventStreamStart, flags=(GstStreamFlags)GST_STREAM_FLAG_NONE, group-id=(uint)1;
|
||||
event caps: video/x-h264, alignment=(string)au, chroma-site=(string)jpeg, codec_data=(buffer)014d000dffe1000d274d000dab60a0fd350601060201000428ee3c80, colorimetry=(string)bt601, framerate=(fraction)25/1, height=(int)240, interlace-mode=(string)progressive, level=(string)1.3, multiview-flags=(GstVideoMultiviewFlagsSet)0:ffffffff:/right-view-first/left-flipped/left-flopped/right-flipped/right-flopped/half-aspect/mixed-mono, multiview-mode=(string)mono, pixel-aspect-ratio=(fraction)1/1, profile=(string)main, stream-format=(string)avc, width=(int)320;
|
||||
event segment: format=TIME, start=1000:00:00.000000000, offset=0:00:00.000000000, stop=none, time=0:00:00.000000000, base=0:00:00.000000000, position=1000:00:00.000000000
|
||||
buffer: dts=999:59:59.960000000, pts=1000:00:00.000000000, dur=0:00:00.040000000, flags=discont marker tag-memory, meta=GstCoreMediaMeta
|
||||
buffer: dts=1000:00:00.000000000, pts=1000:00:00.080000000, dur=0:00:00.040000000, flags=marker delta-unit tag-memory, meta=GstCoreMediaMeta
|
||||
buffer: dts=1000:00:00.040000000, pts=1000:00:00.040000000, dur=0:00:00.040000000, flags=marker delta-unit tag-memory, meta=GstCoreMediaMeta
|
||||
buffer: dts=1000:00:00.080000000, pts=1000:00:00.160000000, dur=0:00:00.040000000, flags=marker delta-unit tag-memory, meta=GstCoreMediaMeta
|
||||
buffer: dts=1000:00:00.120000000, pts=1000:00:00.120000000, dur=0:00:00.040000000, flags=marker delta-unit tag-memory, meta=GstCoreMediaMeta
|
||||
event eos: (no structure)
|
||||
Loading…
Reference in a new issue