1 files changed, 109 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/bitstream_filters.c b/media/ffvpx/libavcodec/bitstream_filters.c
new file mode 100644
index 0000000000..e8216819ca
--- /dev/null
+++ b/media/ffvpx/libavcodec/bitstream_filters.c
@@ -0,0 +1,109 @@
+/*
+ * 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 <stdint.h>
+#include <string.h>
+
+#include "libavutil/log.h"
+
+#include "bsf.h"
+#include "bsf_internal.h"
+
+extern const FFBitStreamFilter ff_aac_adtstoasc_bsf;
+extern const FFBitStreamFilter ff_av1_frame_merge_bsf;
+extern const FFBitStreamFilter ff_av1_frame_split_bsf;
+extern const FFBitStreamFilter ff_av1_metadata_bsf;
+extern const FFBitStreamFilter ff_chomp_bsf;
+extern const FFBitStreamFilter ff_dump_extradata_bsf;
+extern const FFBitStreamFilter ff_dca_core_bsf;
+extern const FFBitStreamFilter ff_dts2pts_bsf;
+extern const FFBitStreamFilter ff_dv_error_marker_bsf;
+extern const FFBitStreamFilter ff_eac3_core_bsf;
+extern const FFBitStreamFilter ff_extract_extradata_bsf;
+extern const FFBitStreamFilter ff_filter_units_bsf;
+extern const FFBitStreamFilter ff_h264_metadata_bsf;
+extern const FFBitStreamFilter ff_h264_mp4toannexb_bsf;
+extern const FFBitStreamFilter ff_h264_redundant_pps_bsf;
+extern const FFBitStreamFilter ff_hapqa_extract_bsf;
+extern const FFBitStreamFilter ff_hevc_metadata_bsf;
+extern const FFBitStreamFilter ff_hevc_mp4toannexb_bsf;
+extern const FFBitStreamFilter ff_imx_dump_header_bsf;
+extern const FFBitStreamFilter ff_media100_to_mjpegb_bsf;
+extern const FFBitStreamFilter ff_mjpeg2jpeg_bsf;
+extern const FFBitStreamFilter ff_mjpega_dump_header_bsf;
+extern const FFBitStreamFilter ff_mp3_header_decompress_bsf;
+extern const FFBitStreamFilter ff_mpeg2_metadata_bsf;
+extern const FFBitStreamFilter ff_mpeg4_unpack_bframes_bsf;
+extern const FFBitStreamFilter ff_mov2textsub_bsf;
+extern const FFBitStreamFilter ff_noise_bsf;
+extern const FFBitStreamFilter ff_null_bsf;
+extern const FFBitStreamFilter ff_opus_metadata_bsf;
+extern const FFBitStreamFilter ff_pcm_rechunk_bsf;
+extern const FFBitStreamFilter ff_pgs_frame_merge_bsf;
+extern const FFBitStreamFilter ff_prores_metadata_bsf;
+extern const FFBitStreamFilter ff_remove_extradata_bsf;
+extern const FFBitStreamFilter ff_setts_bsf;
+extern const FFBitStreamFilter ff_text2movsub_bsf;
+extern const FFBitStreamFilter ff_trace_headers_bsf;
+extern const FFBitStreamFilter ff_truehd_core_bsf;
+extern const FFBitStreamFilter ff_vp9_metadata_bsf;
+extern const FFBitStreamFilter ff_vp9_raw_reorder_bsf;
+extern const FFBitStreamFilter ff_vp9_superframe_bsf;
+extern const FFBitStreamFilter ff_vp9_superframe_split_bsf;
+
+#include "libavcodec/bsf_list.c"
+
+const AVBitStreamFilter *av_bsf_iterate(void **opaque)
+{
+    uintptr_t i = (uintptr_t)*opaque;
+    const FFBitStreamFilter *f = bitstream_filters[i];
+
+    if (f) {
+        *opaque = (void*)(i + 1);
+        return &f->p;
+    }
+    return NULL;
+}
+
+const AVBitStreamFilter *av_bsf_get_by_name(const char *name)
+{
+    const AVBitStreamFilter *f = NULL;
+    void *i = 0;
+
+    if (!name)
+        return NULL;
+
+    while ((f = av_bsf_iterate(&i))) {
+        if (!strcmp(f->name, name))
+            return f;
+    }
+
+    return NULL;
+}
+
+const AVClass *ff_bsf_child_class_iterate(void **opaque)
+{
+    const AVBitStreamFilter *f;
+
+    /* find next filter with priv options */
+    while ((f = av_bsf_iterate(opaque))) {
+        if (f->priv_class)
+            return f->priv_class;
+    }
+    return NULL;
+}