libvpxenc,vp9: add enable-tpl option

enables temporal dependency model

Signed-off-by: James Zern <jzern@google.com>

doc/encoders.texi

@@ -1692,6 +1692,8 @@ Corpus VBR mode is a variant of standard VBR where the complexity distribution
 midpoint is passed in rather than calculated for a specific clip or chunk.
 
 The valid range is [0, 10000]. 0 (default) uses standard VBR.
+@item enable-tpl @var{boolean}
+Enable temporal dependency model.
 @end table
 
 @end table

libavcodec/libvpxenc.c

@@ -111,6 +111,7 @@ typedef struct VPxEncoderContext {
     int row_mt;
     int tune_content;
     int corpus_complexity;
+    int tpl_model;
 } VPxContext;
 
 /** String mappings for enum vp8e_enc_control_id */
@@ -146,6 +147,9 @@ static const char *const ctlidstr[] = {
 #ifdef VPX_CTRL_VP9E_SET_TUNE_CONTENT
     [VP9E_SET_TUNE_CONTENT]            = "VP9E_SET_TUNE_CONTENT",
 #endif
+#ifdef VPX_CTRL_VP9E_SET_TPL
+    [VP9E_SET_TPL]                     = "VP9E_SET_TPL",
+#endif
 #endif
 };
 
@@ -716,6 +720,10 @@ FF_ENABLE_DEPRECATION_WARNINGS
 #ifdef VPX_CTRL_VP9E_SET_TUNE_CONTENT
         if (ctx->tune_content >= 0)
             codecctl_int(avctx, VP9E_SET_TUNE_CONTENT, ctx->tune_content);
+#endif
+#ifdef VPX_CTRL_VP9E_SET_TPL
+        if (ctx->tpl_model >= 0)
+            codecctl_int(avctx, VP9E_SET_TPL, ctx->tpl_model);
 #endif
     }
 #endif
@@ -1156,6 +1164,9 @@ static const AVOption vp9_options[] = {
 #endif
 #if VPX_ENCODER_ABI_VERSION >= 14
     { "corpus-complexity", "corpus vbr complexity midpoint", OFFSET(corpus_complexity), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 10000, VE },
+#endif
+#ifdef VPX_CTRL_VP9E_SET_TPL
+    { "enable-tpl",      "Enable temporal dependency model", OFFSET(tpl_model), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, VE },
 #endif
     LEGACY_OPTIONS
     { NULL }