Update ffmpeg to 7.1.1

submodules/ffmpeg/Sources/FFMpeg/ffmpeg-7.1.1/libavformat/iamf.c

@@ -0,0 +1,125 @@
+/*
+ * Immersive Audio Model and Formats common helpers and structs
+ * Copyright (c) 2023 James Almer <jamrial@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/channel_layout.h"
+#include "libavutil/iamf.h"
+#include "libavutil/mem.h"
+#include "iamf.h"
+
+const AVChannelLayout ff_iamf_scalable_ch_layouts[10] = {
+    AV_CHANNEL_LAYOUT_MONO,
+    AV_CHANNEL_LAYOUT_STEREO,
+    // "Loudspeaker configuration for Sound System B"
+    AV_CHANNEL_LAYOUT_5POINT1_BACK,
+    // "Loudspeaker configuration for Sound System C"
+    AV_CHANNEL_LAYOUT_5POINT1POINT2_BACK,
+    // "Loudspeaker configuration for Sound System D"
+    AV_CHANNEL_LAYOUT_5POINT1POINT4_BACK,
+    // "Loudspeaker configuration for Sound System I"
+    AV_CHANNEL_LAYOUT_7POINT1,
+    // "Loudspeaker configuration for Sound System I" + Ltf + Rtf
+    AV_CHANNEL_LAYOUT_7POINT1POINT2,
+    // "Loudspeaker configuration for Sound System J"
+    AV_CHANNEL_LAYOUT_7POINT1POINT4_BACK,
+    // Front subset of "Loudspeaker configuration for Sound System J"
+    AV_CHANNEL_LAYOUT_3POINT1POINT2,
+    // Binaural
+    AV_CHANNEL_LAYOUT_STEREO,
+};
+
+const struct IAMFSoundSystemMap ff_iamf_sound_system_map[13] = {
+    { SOUND_SYSTEM_A_0_2_0, AV_CHANNEL_LAYOUT_STEREO },
+    { SOUND_SYSTEM_B_0_5_0, AV_CHANNEL_LAYOUT_5POINT1_BACK },
+    { SOUND_SYSTEM_C_2_5_0, AV_CHANNEL_LAYOUT_5POINT1POINT2_BACK },
+    { SOUND_SYSTEM_D_4_5_0, AV_CHANNEL_LAYOUT_5POINT1POINT4_BACK },
+    { SOUND_SYSTEM_E_4_5_1,
+        {
+            .nb_channels = 11,
+            .order       = AV_CHANNEL_ORDER_NATIVE,
+            .u.mask      = AV_CH_LAYOUT_5POINT1POINT4_BACK | AV_CH_BOTTOM_FRONT_CENTER,
+        },
+    },
+    { SOUND_SYSTEM_F_3_7_0,  AV_CHANNEL_LAYOUT_7POINT2POINT3 },
+    { SOUND_SYSTEM_G_4_9_0,  AV_CHANNEL_LAYOUT_9POINT1POINT4_BACK },
+    { SOUND_SYSTEM_H_9_10_3, AV_CHANNEL_LAYOUT_22POINT2 },
+    { SOUND_SYSTEM_I_0_7_0,  AV_CHANNEL_LAYOUT_7POINT1 },
+    { SOUND_SYSTEM_J_4_7_0,  AV_CHANNEL_LAYOUT_7POINT1POINT4_BACK },
+    { SOUND_SYSTEM_10_2_7_0, AV_CHANNEL_LAYOUT_7POINT1POINT2 },
+    { SOUND_SYSTEM_11_2_3_0, AV_CHANNEL_LAYOUT_3POINT1POINT2 },
+    { SOUND_SYSTEM_12_0_1_0, AV_CHANNEL_LAYOUT_MONO },
+};
+
+void ff_iamf_free_audio_element(IAMFAudioElement **paudio_element)
+{
+    IAMFAudioElement *audio_element = *paudio_element;
+
+    if (!audio_element)
+        return;
+
+    for (int i = 0; i < audio_element->nb_substreams; i++)
+        avcodec_parameters_free(&audio_element->substreams[i].codecpar);
+    av_free(audio_element->substreams);
+    av_free(audio_element->layers);
+    av_iamf_audio_element_free(&audio_element->element);
+    av_freep(paudio_element);
+}
+
+void ff_iamf_free_mix_presentation(IAMFMixPresentation **pmix_presentation)
+{
+    IAMFMixPresentation *mix_presentation = *pmix_presentation;
+
+    if (!mix_presentation)
+        return;
+
+    for (int i = 0; i < mix_presentation->count_label; i++)
+        av_free(mix_presentation->language_label[i]);
+    av_free(mix_presentation->language_label);
+    av_iamf_mix_presentation_free(&mix_presentation->mix);
+    av_freep(pmix_presentation);
+}
+
+void ff_iamf_uninit_context(IAMFContext *c)
+{
+    if (!c)
+        return;
+
+    for (int i = 0; i < c->nb_codec_configs; i++) {
+        av_free(c->codec_configs[i]->extradata);
+        av_free(c->codec_configs[i]);
+    }
+    av_freep(&c->codec_configs);
+    c->nb_codec_configs = 0;
+
+    for (int i = 0; i < c->nb_audio_elements; i++)
+        ff_iamf_free_audio_element(&c->audio_elements[i]);
+    av_freep(&c->audio_elements);
+    c->nb_audio_elements = 0;
+
+    for (int i = 0; i < c->nb_mix_presentations; i++)
+        ff_iamf_free_mix_presentation(&c->mix_presentations[i]);
+    av_freep(&c->mix_presentations);
+    c->nb_mix_presentations = 0;
+
+    for (int i = 0; i < c->nb_param_definitions; i++)
+        av_free(c->param_definitions[i]);
+    av_freep(&c->param_definitions);
+    c->nb_param_definitions = 0;
+}