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encoder: h264: track encoder config changes.

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Track and report when encoder configuration changed. For now, this covers
resolution, profile/level and bitrate changes.
This commit is contained in:
Gwenole Beauchesne 2014-06-27 18:43:27 +02:00
parent a12662fd3e
commit 0d971bce26
1 changed files with 31 additions and 6 deletions
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37
gst-libs/gst/vaapi/gstvaapiencoder_h264.c
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@ -738,6 +738,7 @@ struct _GstVaapiEncoderH264
gboolean use_cabac;
gboolean use_dct8x8;
GstClockTime cts_offset;
gboolean config_changed;
/* frame, poc */
guint32 max_frame_num;
@ -2087,15 +2088,21 @@ ensure_bitrate_hrd (GstVaapiEncoderH264 * encoder)
/* Round down bitrate. This is a hard limit mandated by the user */
g_assert (SX_BITRATE >= 6);
bitrate = (base_encoder->bitrate * 1000) & ~((1U << SX_BITRATE) - 1);
GST_DEBUG ("HRD bitrate: %u bits/sec", bitrate);
encoder->bitrate_bits = bitrate;
if (bitrate != encoder->bitrate_bits) {
GST_DEBUG ("HRD bitrate: %u bits/sec", bitrate);
encoder->bitrate_bits = bitrate;
encoder->config_changed = TRUE;
}
/* Round up CPB size. This is an HRD compliance detail */
g_assert (SX_CPB_SIZE >= 4);
cpb_size = gst_util_uint64_scale (bitrate, encoder->cpb_length, 1000) &
~((1U << SX_CPB_SIZE) - 1);
GST_DEBUG ("HRD CPB size: %u bits", cpb_size);
encoder->cpb_length_bits = cpb_size;
if (cpb_size != encoder->cpb_length_bits) {
GST_DEBUG ("HRD CPB size: %u bits", cpb_size);
encoder->cpb_length_bits = cpb_size;
encoder->config_changed = TRUE;
}
}
/* Estimates a good enough bitrate if none was supplied */
@ -2138,6 +2145,9 @@ ensure_bitrate (GstVaapiEncoderH264 * encoder)
static GstVaapiEncoderStatus
ensure_profile_and_level (GstVaapiEncoderH264 * encoder)
{
const GstVaapiProfile profile = encoder->profile;
const GstVaapiLevelH264 level = encoder->level;
ensure_tuning (encoder);
if (!ensure_profile (encoder) || !ensure_profile_limits (encoder))
@ -2153,6 +2163,13 @@ ensure_profile_and_level (GstVaapiEncoderH264 * encoder)
ensure_bitrate (encoder);
if (!ensure_level (encoder))
return GST_VAAPI_ENCODER_STATUS_ERROR_OPERATION_FAILED;
if (encoder->profile != profile || encoder->level != level) {
GST_DEBUG ("selected %s profile at level %s",
gst_vaapi_utils_h264_get_profile_string (encoder->profile),
gst_vaapi_utils_h264_get_level_string (encoder->level));
encoder->config_changed = TRUE;
}
return GST_VAAPI_ENCODER_STATUS_SUCCESS;
}
@ -2525,9 +2542,17 @@ gst_vaapi_encoder_h264_reconfigure (GstVaapiEncoder * base_encoder)
GstVaapiEncoderH264 *const encoder =
GST_VAAPI_ENCODER_H264_CAST (base_encoder);
GstVaapiEncoderStatus status;
guint mb_width, mb_height;
encoder->mb_width = (GST_VAAPI_ENCODER_WIDTH (encoder) + 15) / 16;
encoder->mb_height = (GST_VAAPI_ENCODER_HEIGHT (encoder) + 15) / 16;
mb_width = (GST_VAAPI_ENCODER_WIDTH (encoder) + 15) / 16;
mb_height = (GST_VAAPI_ENCODER_HEIGHT (encoder) + 15) / 16;
if (mb_width != encoder->mb_width || mb_height != encoder->mb_height) {
GST_DEBUG ("resolution: %dx%d", GST_VAAPI_ENCODER_WIDTH (encoder),
GST_VAAPI_ENCODER_HEIGHT (encoder));
encoder->mb_width = mb_width;
encoder->mb_height = mb_height;
encoder->config_changed = TRUE;
}
status = ensure_profile_and_level (encoder);
if (status != GST_VAAPI_ENCODER_STATUS_SUCCESS)