libvpxenc: support vpxencs command line options.

This simplifies useage for users who are used to vpxenc.
We continue to support the previous options with the exception of the flags
for which it would be slightly messy.

libavcodec/libvpxenc.c

@@ -58,19 +58,14 @@ typedef struct VP8EncoderContext {
     struct FrameListData *coded_frame_list;
 
     int cpu_used;
-
-    /**
-     * VP8 specific flags, see VP8F_* below.
-     */
-    int flags;
-#define VP8F_ERROR_RESILIENT 0x00000001 ///< Enable measures appropriate for streaming over lossy links
-#define VP8F_AUTO_ALT_REF    0x00000002 ///< Enable automatic alternate reference frame generation
+    int auto_alt_ref;
 
     int arnr_max_frames;
     int arnr_strength;
     int arnr_type;
 
     int lag_in_frames;
+    int error_resilient;
     int crf;
 } VP8Context;
 
@@ -333,7 +328,7 @@ static av_cold int vp8_init(AVCodecContext *avctx)
    if (avctx->profile != FF_PROFILE_UNKNOWN)
        enccfg.g_profile = avctx->profile;
 
-    enccfg.g_error_resilient = ctx->flags & VP8F_ERROR_RESILIENT;
+    enccfg.g_error_resilient = ctx->error_resilient;
 
     dump_enc_cfg(avctx, &enccfg);
     /* Construct Encoder Context */
@@ -345,11 +340,16 @@ static av_cold int vp8_init(AVCodecContext *avctx)
 
     //codec control failures are currently treated only as warnings
     av_log(avctx, AV_LOG_DEBUG, "vpx_codec_control\n");
-    codecctl_int(avctx, VP8E_SET_CPUUSED,           ctx->cpu_used);
-    codecctl_int(avctx, VP8E_SET_ENABLEAUTOALTREF,  !!(ctx->flags & VP8F_AUTO_ALT_REF));
-    codecctl_int(avctx, VP8E_SET_ARNR_MAXFRAMES,    ctx->arnr_max_frames);
-    codecctl_int(avctx, VP8E_SET_ARNR_STRENGTH,     ctx->arnr_strength);
-    codecctl_int(avctx, VP8E_SET_ARNR_TYPE,         ctx->arnr_type);
+    if (ctx->cpu_used != INT_MIN)
+        codecctl_int(avctx, VP8E_SET_CPUUSED,          ctx->cpu_used);
+    if (ctx->auto_alt_ref >= 0)
+        codecctl_int(avctx, VP8E_SET_ENABLEAUTOALTREF, ctx->auto_alt_ref);
+    if (ctx->arnr_max_frames >= 0)
+        codecctl_int(avctx, VP8E_SET_ARNR_MAXFRAMES,   ctx->arnr_max_frames);
+    if (ctx->arnr_strength >= 0)
+        codecctl_int(avctx, VP8E_SET_ARNR_STRENGTH,    ctx->arnr_strength);
+    if (ctx->arnr_type >= 0)
+        codecctl_int(avctx, VP8E_SET_ARNR_TYPE,        ctx->arnr_type);
     codecctl_int(avctx, VP8E_SET_NOISE_SENSITIVITY, avctx->noise_reduction);
     codecctl_int(avctx, VP8E_SET_TOKEN_PARTITIONS,  av_log2(avctx->slices));
     codecctl_int(avctx, VP8E_SET_STATIC_THRESHOLD,  avctx->mb_threshold);
@@ -545,17 +545,38 @@ static int vp8_encode(AVCodecContext *avctx, uint8_t *buf, int buf_size,
     return coded_size;
 }
 
+#define OFFSET(x) offsetof(VP8Context, x)
 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
 
 static const AVOption options[]={
+    { "cpu-used",        "Quality/Speed ratio modifier",           OFFSET(cpu_used),        FF_OPT_TYPE_INT, {INT_MIN}, INT_MIN, INT_MAX, VE},
+    { "auto-alt-ref",    "Enable use of alternate reference "
+                         "frames (2-pass only)",                   OFFSET(auto_alt_ref),    FF_OPT_TYPE_INT, {-1},      -1,      1,       VE},
+    { "lag-in-frames",   "Number of frames to look ahead for "
+                         "alternate reference frame selection",    OFFSET(lag_in_frames),   FF_OPT_TYPE_INT, {-1},      -1,      INT_MAX, VE},
+    { "arnr-maxframes",  "altref noise reduction max frame count", OFFSET(arnr_max_frames), FF_OPT_TYPE_INT, {-1},      -1,      INT_MAX, VE},
+    { "arnr-strength",   "altref noise reduction filter strength", OFFSET(arnr_strength),   FF_OPT_TYPE_INT, {-1},      -1,      INT_MAX, VE},
+    { "arnr-type",       "altref noise reduction filter type",     OFFSET(arnr_type),       FF_OPT_TYPE_INT, {-1},      -1,      INT_MAX, VE, "arnr_type"},
+    { "backward",        NULL, 0, FF_OPT_TYPE_CONST, {1}, 0, 0, VE, "arnr_type" },
+    { "forward",         NULL, 0, FF_OPT_TYPE_CONST, {2}, 0, 0, VE, "arnr_type" },
+    { "centered",        NULL, 0, FF_OPT_TYPE_CONST, {3}, 0, 0, VE, "arnr_type" },
+    { "deadline",        "Time to spend encoding, in microseconds.", OFFSET(deadline),      FF_OPT_TYPE_INT, {VPX_DL_GOOD_QUALITY}, INT_MIN, INT_MAX, VE, "quality"},
+    { "best",            NULL, 0, FF_OPT_TYPE_CONST, {VPX_DL_BEST_QUALITY}, 0, 0, VE, "quality"},
+    { "good",            NULL, 0, FF_OPT_TYPE_CONST, {VPX_DL_GOOD_QUALITY}, 0, 0, VE, "quality"},
+    { "realtime",        NULL, 0, FF_OPT_TYPE_CONST, {VPX_DL_REALTIME},     0, 0, VE, "quality"},
+    { "error-resilient", "Error resilience configuration", OFFSET(error_resilient), FF_OPT_TYPE_FLAGS, {0}, INT_MIN, INT_MAX, VE, "er"},
+#ifdef VPX_ERROR_RESILIENT_DEFAULT
+    { "default",         "Improve resiliency against losses of whole frames", 0, FF_OPT_TYPE_CONST, {VPX_ERROR_RESILIENT_DEFAULT}, 0, 0, VE, "er"},
+    { "partitions",      "The frame partitions are independently decodable "
+                         "by the bool decoder, meaning that partitions can be decoded even "
+                         "though earlier partitions have been lost. Note that intra predicition"
+                         " is still done over the partition boundary.",       0, FF_OPT_TYPE_CONST, {VPX_ERROR_RESILIENT_PARTITIONS}, 0, 0, VE, "er"},
+#endif
 {"speed", "", offsetof(VP8Context, cpu_used), FF_OPT_TYPE_INT, {.dbl = 3}, -16, 16, VE},
 {"quality", "", offsetof(VP8Context, deadline), FF_OPT_TYPE_INT, {.dbl = VPX_DL_GOOD_QUALITY}, INT_MIN, INT_MAX, VE, "quality"},
 {"best", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = VPX_DL_BEST_QUALITY}, INT_MIN, INT_MAX, VE, "quality"},
 {"good", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = VPX_DL_GOOD_QUALITY}, INT_MIN, INT_MAX, VE, "quality"},
 {"realtime", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = VPX_DL_REALTIME}, INT_MIN, INT_MAX, VE, "quality"},
-{"vp8flags", "", offsetof(VP8Context, flags), FF_OPT_TYPE_FLAGS, {.dbl = 0}, 0, UINT_MAX, VE, "flags"},
-{"error_resilient", "enable error resilience", 0, FF_OPT_TYPE_CONST, {.dbl = VP8F_ERROR_RESILIENT}, INT_MIN, INT_MAX, VE, "flags"},
-{"altref", "enable use of alternate reference frames (VP8/2-pass only)", 0, FF_OPT_TYPE_CONST, {.dbl = VP8F_AUTO_ALT_REF}, INT_MIN, INT_MAX, VE, "flags"},
 {"arnr_max_frames", "altref noise reduction max frame count", offsetof(VP8Context, arnr_max_frames), FF_OPT_TYPE_INT, {.dbl = 0}, 0, 15, VE},
 {"arnr_strength", "altref noise reduction filter strength", offsetof(VP8Context, arnr_strength), FF_OPT_TYPE_INT, {.dbl = 3}, 0, 6, VE},
 {"arnr_type", "altref noise reduction filter type", offsetof(VP8Context, arnr_type), FF_OPT_TYPE_INT, {.dbl = 3}, 1, 3, VE},