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@@ -201,6 +203,24 @@ static const struct bit_desc faststream_source_frequency_table[] = { { } }; +static const struct bit_desc opus_g_frequency_table[] = { + { 7, "48000" }, + { } +}; + +static const struct bit_desc opus_g_duration_table[] = { + { 3, "10 ms" }, + { 4, "20 ms" }, + { } +}; + +static const struct bit_desc opus_g_channels_table[] = { + { 0, "Mono" }, + { 1, "Stereo" }, + { 2, "Dual Mono" }, + { } +}; + static void print_value_bits(uint8_t indent, uint32_t value, const struct bit_desc *table) { @@ -244,6 +264,7 @@ static bool codec_vendor_aptx_ll_cfg(uint8_t losc, struct l2cap_frame *frame); static bool codec_vendor_aptx_hd_cap(uint8_t losc, struct l2cap_frame *frame); static bool codec_vendor_aptx_hd_cfg(uint8_t losc, struct l2cap_frame *frame); static bool codec_vendor_ldac(uint8_t losc, struct l2cap_frame *frame); +static bool codec_vendor_opus_g(uint8_t losc, struct l2cap_frame *frame); static const struct vndcodec vndcodecs[] = { { APTX_VENDOR_ID, APTX_CODEC_ID, "aptX", @@ -256,6 +277,8 @@ static const struct vndcodec vndcodecs[] = { codec_vendor_aptx_hd_cap, codec_vendor_aptx_hd_cfg }, { LDAC_VENDOR_ID, LDAC_CODEC_ID, "LDAC", codec_vendor_ldac, codec_vendor_ldac }, + { OPUS_G_VENDOR_ID, OPUS_G_CODEC_ID, "Opus (Google)", + codec_vendor_opus_g, codec_vendor_opus_g }, { } }; @@ -685,6 +708,27 @@ static bool codec_vendor_ldac(uint8_t losc, struct l2cap_frame *frame) return true; } +static bool codec_vendor_opus_g(uint8_t losc, struct l2cap_frame *frame) +{ + uint8_t cap = 0; + + if (losc != 1) + return false; + + l2cap_frame_get_u8(frame, &cap); + + print_field("%*cFrequency: 0x%02x", BASE_INDENT + 2, ' ', cap); + print_value_bits(BASE_INDENT + 2, cap, opus_g_frequency_table); + + print_field("%*cFrame Duration: 0x%02x", BASE_INDENT + 2, ' ', cap); + print_value_bits(BASE_INDENT + 2, cap, opus_g_duration_table); + + print_field("%*cChannel Mode: 0x%02x", BASE_INDENT + 2, ' ', cap); + print_value_bits(BASE_INDENT + 2, cap, opus_g_channels_table); + + return true; +} + static bool codec_vendor_cap(uint8_t losc, struct l2cap_frame *frame) { uint32_t vendor_id = 0; From patchwork Fri Feb 2 20:08:10 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pauli Virtanen X-Patchwork-Id: 13543351 Received: from lahtoruutu.iki.fi (lahtoruutu.iki.fi [185.185.170.37]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 556E180601 for ; 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s=lahtoruutu; d=iki.fi; t=1706904498; a=rsa-sha256; cv=none; b=a0UxoNPU7jR3J2Lld+N/tJgwXLiuiL59juNWYHcw1IwJtzibD0269CznW90KaTMsNvqQL4 gA2VgUPw3vXtJubZjPEMEvDPLyRJXQAVSgNjfT7uIUX8KCU/+ojkRQLEW8V2jxGXxENJ0M HqQC2wxG2GkNr368nULTFfTU7M64dEr3MnRQWbnmRhZfLtSQvB7BJJIUEUHmSRQWapTwdf 1GG4N33a4Hu5sczj7x9KAHd/R7zcIDyMYf0zuWvT7ZbclfQ+hUKdj2Bk3bsC/ht1eUN2+e vlftEnBnqKnHnEAuYeURoPbeR8AR6kbNEm+Yu3O0S7EEson9UFl5u0x9KnxSzw== ARC-Authentication-Results: i=1; ORIGINATING; auth=pass smtp.auth=pav smtp.mailfrom=pav@iki.fi From: Pauli Virtanen To: linux-bluetooth@vger.kernel.org Cc: Pauli Virtanen Subject: [PATCH BlueZ 2/2] client/player: parse Google's Opus A2DP vendor codec capabilities Date: Fri, 2 Feb 2024 22:08:10 +0200 Message-ID: <64ff76d1729e61b236fad667973f5f4d8f1268f3.1706904250.git.pav@iki.fi> X-Mailer: git-send-email 2.43.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Support parsing Opus (Google) A2DP vendor codec capabilities. --- client/player.c | 32 ++++++++++++++++++++++++++++++++ profiles/audio/a2dp-codecs.h | 17 +++++++++++++++++ 2 files changed, 49 insertions(+) diff --git a/client/player.c b/client/player.c index 623519209..10a3d3f18 100644 --- a/client/player.c +++ b/client/player.c @@ -2462,6 +2462,36 @@ static void print_ldac(a2dp_ldac_t *ldac, uint8_t size) bt_shell_printf("\n"); } +static void print_opus_g(a2dp_opus_g_t *opus, uint8_t size) +{ + bt_shell_printf("\t\tVendor Specific Value (Opus [Google])"); + + if (size < sizeof(*opus)) { + bt_shell_printf(" (broken)\n"); + return; + } + + bt_shell_printf("\n\t\tFrequencies: "); + if (opus->data & OPUS_G_FREQUENCY_48000) + bt_shell_printf("48kHz "); + + bt_shell_printf("\n\t\tChannel modes: "); + if (opus->data & OPUS_G_CHANNELS_MONO) + bt_shell_printf("Mono "); + if (opus->data & OPUS_G_CHANNELS_STEREO) + bt_shell_printf("Stereo "); + if (opus->data & OPUS_G_CHANNELS_DUAL) + bt_shell_printf("Dual Mono "); + + bt_shell_printf("\n\t\tFrame durations: "); + if (opus->data & OPUS_G_DURATION_100) + bt_shell_printf("10 ms "); + if (opus->data & OPUS_G_DURATION_200) + bt_shell_printf("20 ms "); + + bt_shell_printf("\n"); +} + static void print_vendor(a2dp_vendor_codec_t *vendor, uint8_t size) { uint32_t vendor_id; @@ -2499,6 +2529,8 @@ static void print_vendor(a2dp_vendor_codec_t *vendor, uint8_t size) print_aptx_hd((void *) vendor, size); else if (vendor_id == LDAC_VENDOR_ID && codec_id == LDAC_CODEC_ID) print_ldac((void *) vendor, size); + else if (vendor_id == OPUS_G_VENDOR_ID && codec_id == OPUS_G_CODEC_ID) + print_opus_g((void *) vendor, size); } static void print_mpeg24(a2dp_aac_t *aac, uint8_t size) diff --git a/profiles/audio/a2dp-codecs.h b/profiles/audio/a2dp-codecs.h index 6f5670947..38b9038f8 100644 --- a/profiles/audio/a2dp-codecs.h +++ b/profiles/audio/a2dp-codecs.h @@ -250,6 +250,18 @@ #define LDAC_CHANNEL_MODE_DUAL 0x02 #define LDAC_CHANNEL_MODE_STEREO 0x01 +#define OPUS_G_VENDOR_ID 0x000000e0 +#define OPUS_G_CODEC_ID 0x0001 + +#define OPUS_G_FREQUENCY_48000 0x80 + +#define OPUS_G_DURATION_100 0x08 +#define OPUS_G_DURATION_200 0x10 + +#define OPUS_G_CHANNELS_MONO 0x01 +#define OPUS_G_CHANNELS_STEREO 0x02 +#define OPUS_G_CHANNELS_DUAL 0x04 + typedef struct { uint8_t vendor_id4; uint8_t vendor_id3; @@ -420,3 +432,8 @@ typedef struct { uint8_t reserved2; uint8_t reserved3; } __attribute__ ((packed)) a2dp_aptx_hd_t; + +typedef struct { + a2dp_vendor_codec_t info; + uint8_t data; +} __attribute__ ((packed)) a2dp_opus_g_t;