From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mx1.redhat.com ([209.132.183.28]:25357 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757454Ab3APWL5 (ORCPT ); Wed, 16 Jan 2013 17:11:57 -0500 Date: Wed, 16 Jan 2013 20:11:13 -0200 From: Mauro Carvalho Chehab To: Manu Abraham Cc: Simon Farnsworth , Antti Palosaari , Linux Media Mailing List Subject: Re: [PATCH RFCv10 00/15] DVB QoS statistics API Message-ID: <20130116201113.5394cd14@redhat.com> In-Reply-To: References: <1358217061-14982-1-git-send-email-mchehab@redhat.com> <20130116152151.5461221c@redhat.com> <2817386.vHx2V41lNt@f17simon> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: Em Thu, 17 Jan 2013 03:07:21 +0530 Manu Abraham escreveu: > With ISDB-T, with the 3 layers, you have BER/UNC for each of the layers, though > the rate difference could be very little. Where? There's no way to report per-layer report with DVBv3. And no, the difference is not very little: $ dmesg|grep -e mb86a20s_get_main_CNR -e "bit error before" -e "bit count before" [12785.798746] i2c i2c-4: mb86a20s_get_ber_before_vterbi: bit error before Viterbi for layer A: 252. [12785.810743] i2c i2c-4: mb86a20s_get_ber_before_vterbi: bit count before Viterbi for layer A: 65535. [12785.856385] i2c i2c-4: mb86a20s_get_main_CNR: CNR is 24.4 dB (1285) [12786.399684] i2c i2c-4: mb86a20s_get_main_CNR: CNR is 24.4 dB (1285) [12786.410678] i2c i2c-4: mb86a20s_get_ber_before_vterbi: bit error before Viterbi for layer A: 248. [12786.422693] i2c i2c-4: mb86a20s_get_ber_before_vterbi: bit count before Viterbi for layer A: 65535. [12786.425547] i2c i2c-4: mb86a20s_get_ber_before_vterbi: bit error before Viterbi for layer B: 80209. [12786.437537] i2c i2c-4: mb86a20s_get_ber_before_vterbi: bit count before Viterbi for layer B: 8257536. [12786.919289] i2c i2c-4: mb86a20s_get_main_CNR: CNR is 24.4 dB (1285) [12786.930410] i2c i2c-4: mb86a20s_get_ber_before_vterbi: bit error before Viterbi for layer A: 213. [12786.942553] i2c i2c-4: mb86a20s_get_ber_before_vterbi: bit count before Viterbi for layer A: 65535. [12786.989127] i2c i2c-4: mb86a20s_get_main_CNR: CNR is 24.4 dB (1285) [12787.387172] i2c i2c-4: mb86a20s_get_main_CNR: CNR is 24.4 dB (1285) [12787.398062] i2c i2c-4: mb86a20s_get_ber_before_vterbi: bit error before Viterbi for layer A: 234. [12787.409657] i2c i2c-4: mb86a20s_get_ber_before_vterbi: bit count before Viterbi for layer A: 65535. [12787.412529] i2c i2c-4: mb86a20s_get_ber_before_vterbi: bit error before Viterbi for layer B: 83533. [12787.424293] i2c i2c-4: mb86a20s_get_ber_before_vterbi: bit count before Viterbi for layer B: 8257536. [12788.052702] i2c i2c-4: mb86a20s_get_main_CNR: CNR is 24.4 dB (1285) [12788.063443] i2c i2c-4: mb86a20s_get_ber_before_vterbi: bit error before Viterbi for layer A: 183. [12788.075438] i2c i2c-4: mb86a20s_get_ber_before_vterbi: bit count before Viterbi for layer A: 65535. [12788.078165] i2c i2c-4: mb86a20s_get_ber_before_vterbi: bit error before Viterbi for layer B: 91502. [12788.089946] i2c i2c-4: mb86a20s_get_ber_before_vterbi: bit count before Viterbi for layer B: 8257536. [12788.126411] i2c i2c-4: mb86a20s_get_main_CNR: CNR is 24.4 dB (1285) [12788.388646] i2c i2c-4: mb86a20s_get_main_CNR: CNR is 24.4 dB (1285) [12788.399268] i2c i2c-4: mb86a20s_get_ber_before_vterbi: bit error before Viterbi for layer A: 181. [12788.410887] i2c i2c-4: mb86a20s_get_ber_before_vterbi: bit count before Viterbi for layer A: 65535. [12789.189254] i2c i2c-4: mb86a20s_get_main_CNR: CNR is 24.4 dB (1285) [12789.200099] i2c i2c-4: mb86a20s_get_ber_before_vterbi: bit error before Viterbi for layer A: 191. [12789.211719] i2c i2c-4: mb86a20s_get_ber_before_vterbi: bit count before Viterbi for layer A: 65535. [12789.214465] i2c i2c-4: mb86a20s_get_ber_before_vterbi: bit error before Viterbi for layer B: 83536. [12789.226348] i2c i2c-4: mb86a20s_get_ber_before_vterbi: bit count before Viterbi for layer B: 8257536. -- Cheers, Mauro