2 * Copyright (C) 2011, Hewlett-Packard Development Company, L.P.
3 * Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>, Collabora Ltd.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation
8 * version 2.1 of the License.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
27 #include "gstomxaacenc.h"
29 GST_DEBUG_CATEGORY_STATIC (gst_omx_aac_enc_debug_category);
30 #define GST_CAT_DEFAULT gst_omx_aac_enc_debug_category
33 static void gst_omx_aac_enc_set_property (GObject * object, guint prop_id,
34 const GValue * value, GParamSpec * pspec);
35 static void gst_omx_aac_enc_get_property (GObject * object, guint prop_id,
36 GValue * value, GParamSpec * pspec);
37 static gboolean gst_omx_aac_enc_set_format (GstOMXAudioEnc * enc,
38 GstOMXPort * port, GstAudioInfo * info);
39 static GstCaps *gst_omx_aac_enc_get_caps (GstOMXAudioEnc * enc,
40 GstOMXPort * port, GstAudioInfo * info);
41 static guint gst_omx_aac_enc_get_num_samples (GstOMXAudioEnc * enc,
42 GstOMXPort * port, GstAudioInfo * info, GstOMXBuffer * buf);
49 PROP_AAC_ERROR_RESILIENCE_TOOLS
52 #define DEFAULT_BITRATE (128000)
53 #define DEFAULT_AAC_TOOLS (OMX_AUDIO_AACToolMS | OMX_AUDIO_AACToolIS | OMX_AUDIO_AACToolTNS | OMX_AUDIO_AACToolPNS | OMX_AUDIO_AACToolLTP)
54 #define DEFAULT_AAC_ER_TOOLS (OMX_AUDIO_AACERNone)
56 #define GST_TYPE_OMX_AAC_TOOLS (gst_omx_aac_tools_get_type ())
58 gst_omx_aac_tools_get_type (void)
61 static const GFlagsValue values[] = {
62 {OMX_AUDIO_AACToolMS, "Mid/side joint coding", "ms"},
63 {OMX_AUDIO_AACToolIS, "Intensity stereo", "is"},
64 {OMX_AUDIO_AACToolTNS, "Temporal noise shaping", "tns"},
65 {OMX_AUDIO_AACToolPNS, "Perceptual noise substitution", "pns"},
66 {OMX_AUDIO_AACToolLTP, "Long term prediction", "ltp"},
70 if (g_once_init_enter (&id)) {
71 GType tmp = g_flags_register_static ("GstOMXAACTools", values);
72 g_once_init_leave (&id, tmp);
78 #define GST_TYPE_OMX_AAC_ER_TOOLS (gst_omx_aac_er_tools_get_type ())
80 gst_omx_aac_er_tools_get_type (void)
83 static const GFlagsValue values[] = {
84 {OMX_AUDIO_AACERVCB11, "Virtual code books", "vcb11"},
85 {OMX_AUDIO_AACERRVLC, "Reversible variable length coding", "rvlc"},
86 {OMX_AUDIO_AACERHCR, "Huffman codeword reordering", "hcr"},
90 if (g_once_init_enter (&id)) {
91 GType tmp = g_flags_register_static ("GstOMXAACERTools", values);
92 g_once_init_leave (&id, tmp);
98 /* class initialization */
101 GST_DEBUG_CATEGORY_INIT (gst_omx_aac_enc_debug_category, "omxaacenc", 0, \
102 "debug category for gst-omx audio encoder base class");
104 G_DEFINE_TYPE_WITH_CODE (GstOMXAACEnc, gst_omx_aac_enc,
105 GST_TYPE_OMX_AUDIO_ENC, DEBUG_INIT);
109 gst_omx_aac_enc_class_init (GstOMXAACEncClass * klass)
111 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
112 GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
113 GstOMXAudioEncClass *audioenc_class = GST_OMX_AUDIO_ENC_CLASS (klass);
115 gobject_class->set_property = gst_omx_aac_enc_set_property;
116 gobject_class->get_property = gst_omx_aac_enc_get_property;
118 g_object_class_install_property (gobject_class, PROP_BITRATE,
119 g_param_spec_uint ("bitrate", "Bitrate",
121 0, G_MAXUINT, DEFAULT_BITRATE,
122 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
123 GST_PARAM_MUTABLE_READY));
125 g_object_class_install_property (gobject_class, PROP_AAC_TOOLS,
126 g_param_spec_flags ("aac-tools", "AAC Tools",
128 GST_TYPE_OMX_AAC_TOOLS,
130 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
131 GST_PARAM_MUTABLE_READY));
133 g_object_class_install_property (gobject_class,
134 PROP_AAC_ERROR_RESILIENCE_TOOLS,
135 g_param_spec_flags ("aac-error-resilience-tools",
136 "AAC Error Resilience Tools", "Allowed AAC error resilience tools",
137 GST_TYPE_OMX_AAC_ER_TOOLS, DEFAULT_AAC_ER_TOOLS,
138 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
139 GST_PARAM_MUTABLE_READY));
141 audioenc_class->set_format = GST_DEBUG_FUNCPTR (gst_omx_aac_enc_set_format);
142 audioenc_class->get_caps = GST_DEBUG_FUNCPTR (gst_omx_aac_enc_get_caps);
143 audioenc_class->get_num_samples =
144 GST_DEBUG_FUNCPTR (gst_omx_aac_enc_get_num_samples);
146 audioenc_class->cdata.default_src_template_caps = "audio/mpeg, "
147 "mpegversion=(int){2, 4}, "
148 "stream-format=(string){raw, adts, adif, loas, latm}";
151 gst_element_class_set_static_metadata (element_class,
152 "OpenMAX AAC Audio Encoder",
153 "Codec/Encoder/Audio/Hardware",
154 "Encode AAC audio streams",
155 "Sebastian Dröge <sebastian.droege@collabora.co.uk>");
157 gst_omx_set_default_role (&audioenc_class->cdata, "audio_encoder.aac");
161 gst_omx_aac_enc_init (GstOMXAACEnc * self)
163 self->bitrate = DEFAULT_BITRATE;
164 self->aac_tools = DEFAULT_AAC_TOOLS;
165 self->aac_er_tools = DEFAULT_AAC_ER_TOOLS;
169 gst_omx_aac_enc_set_property (GObject * object, guint prop_id,
170 const GValue * value, GParamSpec * pspec)
172 GstOMXAACEnc *self = GST_OMX_AAC_ENC (object);
176 self->bitrate = g_value_get_uint (value);
179 self->aac_tools = g_value_get_flags (value);
181 case PROP_AAC_ERROR_RESILIENCE_TOOLS:
182 self->aac_er_tools = g_value_get_flags (value);
185 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
191 gst_omx_aac_enc_get_property (GObject * object, guint prop_id, GValue * value,
194 GstOMXAACEnc *self = GST_OMX_AAC_ENC (object);
198 g_value_set_uint (value, self->bitrate);
201 g_value_set_flags (value, self->aac_tools);
203 case PROP_AAC_ERROR_RESILIENCE_TOOLS:
204 g_value_set_flags (value, self->aac_er_tools);
207 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
213 gst_omx_aac_enc_set_format (GstOMXAudioEnc * enc, GstOMXPort * port,
216 GstOMXAACEnc *self = GST_OMX_AAC_ENC (enc);
217 OMX_AUDIO_PARAM_AACPROFILETYPE aac_profile;
221 GST_OMX_INIT_STRUCT (&aac_profile);
222 aac_profile.nPortIndex = enc->enc_out_port->index;
225 gst_omx_component_get_parameter (enc->enc, OMX_IndexParamAudioAac,
227 if (err != OMX_ErrorNone) {
228 GST_ERROR_OBJECT (self,
229 "Failed to get AAC parameters from component: %s (0x%08x)",
230 gst_omx_error_to_string (err), err);
234 peercaps = gst_pad_peer_query_caps (GST_AUDIO_ENCODER_SRC_PAD (self),
235 gst_pad_get_pad_template_caps (GST_AUDIO_ENCODER_SRC_PAD (self)));
238 gint mpegversion = 0;
239 const gchar *profile_string, *stream_format_string;
241 if (gst_caps_is_empty (peercaps)) {
242 gst_caps_unref (peercaps);
243 GST_ERROR_OBJECT (self, "Empty caps");
247 s = gst_caps_get_structure (peercaps, 0);
249 if (gst_structure_get_int (s, "mpegversion", &mpegversion)) {
251 gst_structure_get_string (s,
252 ((mpegversion == 2) ? "profile" : "base-profile"));
254 if (profile_string) {
255 if (g_str_equal (profile_string, "main")) {
256 aac_profile.eAACProfile = OMX_AUDIO_AACObjectMain;
257 } else if (g_str_equal (profile_string, "lc")) {
258 aac_profile.eAACProfile = OMX_AUDIO_AACObjectLC;
259 } else if (g_str_equal (profile_string, "ssr")) {
260 aac_profile.eAACProfile = OMX_AUDIO_AACObjectSSR;
261 } else if (g_str_equal (profile_string, "ltp")) {
262 aac_profile.eAACProfile = OMX_AUDIO_AACObjectLTP;
264 GST_ERROR_OBJECT (self, "Unsupported profile '%s'", profile_string);
265 gst_caps_unref (peercaps);
271 stream_format_string = gst_structure_get_string (s, "stream-format");
272 if (stream_format_string) {
273 if (g_str_equal (stream_format_string, "raw")) {
274 aac_profile.eAACStreamFormat = OMX_AUDIO_AACStreamFormatRAW;
275 } else if (g_str_equal (stream_format_string, "adts")) {
276 if (mpegversion == 2) {
277 aac_profile.eAACStreamFormat = OMX_AUDIO_AACStreamFormatMP2ADTS;
279 aac_profile.eAACStreamFormat = OMX_AUDIO_AACStreamFormatMP4ADTS;
281 } else if (g_str_equal (stream_format_string, "loas")) {
282 aac_profile.eAACStreamFormat = OMX_AUDIO_AACStreamFormatMP4LOAS;
283 } else if (g_str_equal (stream_format_string, "latm")) {
284 aac_profile.eAACStreamFormat = OMX_AUDIO_AACStreamFormatMP4LATM;
285 } else if (g_str_equal (stream_format_string, "adif")) {
286 aac_profile.eAACStreamFormat = OMX_AUDIO_AACStreamFormatADIF;
288 GST_ERROR_OBJECT (self, "Unsupported stream-format '%s'",
289 stream_format_string);
290 gst_caps_unref (peercaps);
295 gst_caps_unref (peercaps);
297 aac_profile.nSampleRate = info->rate;
298 aac_profile.nChannels = info->channels;
301 aac_profile.nAACtools = self->aac_tools;
302 aac_profile.nAACERtools = self->aac_er_tools;
304 aac_profile.nBitRate = self->bitrate;
307 gst_omx_component_set_parameter (enc->enc, OMX_IndexParamAudioAac,
309 if (err != OMX_ErrorNone) {
310 GST_ERROR_OBJECT (self, "Error setting AAC parameters: %s (0x%08x)",
311 gst_omx_error_to_string (err), err);
318 typedef enum adts_sample_index__
320 ADTS_SAMPLE_INDEX_96000 = 0x0,
321 ADTS_SAMPLE_INDEX_88200,
322 ADTS_SAMPLE_INDEX_64000,
323 ADTS_SAMPLE_INDEX_48000,
324 ADTS_SAMPLE_INDEX_44100,
325 ADTS_SAMPLE_INDEX_32000,
326 ADTS_SAMPLE_INDEX_24000,
327 ADTS_SAMPLE_INDEX_22050,
328 ADTS_SAMPLE_INDEX_16000,
329 ADTS_SAMPLE_INDEX_12000,
330 ADTS_SAMPLE_INDEX_11025,
331 ADTS_SAMPLE_INDEX_8000,
332 ADTS_SAMPLE_INDEX_7350,
333 ADTS_SAMPLE_INDEX_MAX
336 static adts_sample_index
337 map_adts_sample_index (guint32 srate)
339 adts_sample_index ret;
344 ret = ADTS_SAMPLE_INDEX_96000;
347 ret = ADTS_SAMPLE_INDEX_88200;
350 ret = ADTS_SAMPLE_INDEX_64000;
353 ret = ADTS_SAMPLE_INDEX_48000;
356 ret = ADTS_SAMPLE_INDEX_44100;
359 ret = ADTS_SAMPLE_INDEX_32000;
362 ret = ADTS_SAMPLE_INDEX_24000;
365 ret = ADTS_SAMPLE_INDEX_22050;
368 ret = ADTS_SAMPLE_INDEX_16000;
371 ret = ADTS_SAMPLE_INDEX_12000;
374 ret = ADTS_SAMPLE_INDEX_11025;
377 ret = ADTS_SAMPLE_INDEX_8000;
380 ret = ADTS_SAMPLE_INDEX_7350;
383 ret = ADTS_SAMPLE_INDEX_44100;
390 gst_omx_aac_enc_get_caps (GstOMXAudioEnc * enc, GstOMXPort * port,
395 OMX_AUDIO_PARAM_AACPROFILETYPE aac_profile;
396 gint mpegversion = 4;
397 const gchar *stream_format = NULL, *profile = NULL;
399 GST_OMX_INIT_STRUCT (&aac_profile);
400 aac_profile.nPortIndex = enc->enc_out_port->index;
403 gst_omx_component_get_parameter (enc->enc, OMX_IndexParamAudioAac,
405 if (err != OMX_ErrorNone) {
406 GST_ERROR_OBJECT (enc,
407 "Failed to get AAC parameters from component: %s (0x%08x)",
408 gst_omx_error_to_string (err), err);
412 switch (aac_profile.eAACProfile) {
413 case OMX_AUDIO_AACObjectMain:
416 case OMX_AUDIO_AACObjectLC:
419 case OMX_AUDIO_AACObjectSSR:
422 case OMX_AUDIO_AACObjectLTP:
425 case OMX_AUDIO_AACObjectHE:
426 case OMX_AUDIO_AACObjectScalable:
427 case OMX_AUDIO_AACObjectERLC:
428 case OMX_AUDIO_AACObjectLD:
429 case OMX_AUDIO_AACObjectHE_PS:
431 GST_ERROR_OBJECT (enc, "Unsupported profile %d", aac_profile.eAACProfile);
435 switch (aac_profile.eAACStreamFormat) {
436 case OMX_AUDIO_AACStreamFormatMP2ADTS:
438 stream_format = "adts";
440 case OMX_AUDIO_AACStreamFormatMP4ADTS:
442 stream_format = "adts";
444 case OMX_AUDIO_AACStreamFormatMP4LOAS:
446 stream_format = "loas";
448 case OMX_AUDIO_AACStreamFormatMP4LATM:
450 stream_format = "latm";
452 case OMX_AUDIO_AACStreamFormatADIF:
454 stream_format = "adif";
456 case OMX_AUDIO_AACStreamFormatRAW:
458 stream_format = "raw";
460 case OMX_AUDIO_AACStreamFormatMP4FF:
462 GST_ERROR_OBJECT (enc, "Unsupported stream-format %u",
463 aac_profile.eAACStreamFormat);
467 caps = gst_caps_new_empty_simple ("audio/mpeg");
469 if (mpegversion != 0)
470 gst_caps_set_simple (caps, "mpegversion", G_TYPE_INT, mpegversion,
471 "stream-format", G_TYPE_STRING, stream_format, NULL);
472 if (profile != NULL && (mpegversion == 2 || mpegversion == 4))
473 gst_caps_set_simple (caps, "profile", G_TYPE_STRING, profile, NULL);
474 if (profile != NULL && mpegversion == 4)
475 gst_caps_set_simple (caps, "base-profile", G_TYPE_STRING, profile, NULL);
476 if (aac_profile.nChannels != 0)
477 gst_caps_set_simple (caps, "channels", G_TYPE_INT, aac_profile.nChannels,
479 if (aac_profile.nSampleRate != 0)
480 gst_caps_set_simple (caps, "rate", G_TYPE_INT, aac_profile.nSampleRate,
483 if (aac_profile.eAACStreamFormat == OMX_AUDIO_AACStreamFormatRAW) {
484 GstBuffer *codec_data;
485 adts_sample_index sr_idx;
486 GstMapInfo map = GST_MAP_INFO_INIT;
488 codec_data = gst_buffer_new_and_alloc (2);
489 gst_buffer_map (codec_data, &map, GST_MAP_WRITE);
490 sr_idx = map_adts_sample_index (aac_profile.nSampleRate);
491 map.data[0] = ((aac_profile.eAACProfile & 0x1F) << 3) |
492 ((sr_idx & 0xE) >> 1);
493 map.data[1] = ((sr_idx & 0x1) << 7) | ((aac_profile.nChannels & 0xF) << 3);
494 gst_buffer_unmap (codec_data, &map);
496 GST_DEBUG_OBJECT (enc, "setting new codec_data");
497 gst_caps_set_simple (caps, "codec_data", GST_TYPE_BUFFER, codec_data, NULL);
499 gst_buffer_unref (codec_data);
506 gst_omx_aac_enc_get_num_samples (GstOMXAudioEnc * enc, GstOMXPort * port,
507 GstAudioInfo * info, GstOMXBuffer * buf)
509 /* FIXME: Depends on the profile at least */