Merge remote-tracking branch 'qatar/master'

[ffmpeg] / libavcodec / libx264.c

diff --git a/libavcodec/libx264.c b/libavcodec/libx264.c
index 8765e56d023ceb495e38e6e48b8d2093e3486c61..2e0404d490f2bf5cc5e3457591b31c213b36f4b8 100644 (file)
--- a/libavcodec/libx264.c
+++ b/libavcodec/libx264.c
@@ -73,6 +73,7 @@ typedef struct X264Context {
     int slice_max_size;
     char *stats;
     int nal_hrd;
+    char *x264_params;
 } X264Context;
 
 static void X264_log(void *p, int level, const char *fmt, va_list args)
@@ -335,7 +336,7 @@ static av_cold int X264_init(AVCodecContext *avctx)
             x4->params.rc.f_rf_constant_max = x4->crf_max;
     }
 
-    if (avctx->rc_buffer_size && avctx->rc_initial_buffer_occupancy &&
+    if (avctx->rc_buffer_size && avctx->rc_initial_buffer_occupancy > 0 &&
         (avctx->rc_initial_buffer_occupancy <= avctx->rc_buffer_size)) {
         x4->params.rc.f_vbv_buffer_init =
             (float)avctx->rc_initial_buffer_occupancy / avctx->rc_buffer_size;
@@ -522,6 +523,22 @@ static av_cold int X264_init(AVCodecContext *avctx)
     if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER)
         x4->params.b_repeat_headers = 0;
 
+    if (x4->x264_params) {
+        AVDictionary *dict    = NULL;
+        AVDictionaryEntry *en = NULL;
+
+        if (!av_dict_parse_string(&dict, x4->x264_params, "=", ":", 0)) {
+            while ((en = av_dict_get(dict, "", en, AV_DICT_IGNORE_SUFFIX))) {
+                if (x264_param_parse(&x4->params, en->key, en->value) < 0)
+                    av_log(avctx, AV_LOG_WARNING,
+                           "Error parsing option '%s = %s'.\n",
+                            en->key, en->value);
+            }
+
+            av_dict_free(&dict);
+        }
+    }
+
     // update AVCodecContext with x264 parameters
     avctx->has_b_frames = x4->params.i_bframe ?
         x4->params.i_bframe_pyramid ? 2 : 1 : 0;
@@ -653,6 +670,7 @@ static const AVOption options[] = {
     { "none",          NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_NONE}, INT_MIN, INT_MAX, VE, "nal-hrd" },
     { "vbr",           NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_VBR},  INT_MIN, INT_MAX, VE, "nal-hrd" },
     { "cbr",           NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_CBR},  INT_MIN, INT_MAX, VE, "nal-hrd" },
+    { "x264-params",  "Override the x264 configuration using a :-separated list of key=value parameters", OFFSET(x264_params), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
     { NULL },
 };
 
@@ -695,6 +713,7 @@ static const AVCodecDefault x264_defaults[] = {
     { "threads",          AV_STRINGIFY(X264_THREADS_AUTO) },
     { "thread_type",      "0" },
     { "flags",            "+cgop" },
+    { "rc_init_occupancy","-1" },
     { NULL },
 };