X-Git-Url: https://granicus.if.org/sourcecode?a=blobdiff_plain;f=examples%2Ftwopass_encoder.c;h=15a6617cd4f282a09ea046e652ac868ceff5c1b3;hb=656f9c41260c376a6e34e6fef6d586f8ebeae325;hp=0ec83ddccdfd11a08d146d882bf129610ec7094f;hpb=3be948d84b48c92386887aea0bd7ddb931ee03b4;p=libvpx

diff --git a/examples/twopass_encoder.c b/examples/twopass_encoder.c
index 0ec83ddcc..15a6617cd 100644
--- a/examples/twopass_encoder.c
+++ b/examples/twopass_encoder.c
@@ -58,8 +58,10 @@
 
 static const char *exec_name;
 
-void usage_exit() {
-  fprintf(stderr, "Usage: %s <codec> <width> <height> <infile> <outfile>\n",
+void usage_exit(void) {
+  fprintf(stderr,
+          "Usage: %s <codec> <width> <height> <infile> <outfile> "
+              "<frame limit>\n",
           exec_name);
   exit(EXIT_FAILURE);
 }
@@ -129,7 +131,8 @@ static int encode_frame(vpx_codec_ctx_t *ctx,
 static vpx_fixed_buf_t pass0(vpx_image_t *raw,
                              FILE *infile,
                              const VpxInterface *encoder,
-                             const vpx_codec_enc_cfg_t *cfg) {
+                             const vpx_codec_enc_cfg_t *cfg,
+                             int max_frames) {
   vpx_codec_ctx_t codec;
   int frame_count = 0;
   vpx_fixed_buf_t stats = {NULL, 0};
@@ -142,6 +145,8 @@ static vpx_fixed_buf_t pass0(vpx_image_t *raw,
     ++frame_count;
     get_frame_stats(&codec, raw, frame_count, 1, 0, VPX_DL_GOOD_QUALITY,
                     &stats);
+    if (max_frames > 0 && frame_count >= max_frames)
+      break;
   }
 
   // Flush encoder.
@@ -159,7 +164,8 @@ static void pass1(vpx_image_t *raw,
                   FILE *infile,
                   const char *outfile_name,
                   const VpxInterface *encoder,
-                  const vpx_codec_enc_cfg_t *cfg) {
+                  const vpx_codec_enc_cfg_t *cfg,
+                  int max_frames) {
   VpxVideoInfo info = {
     encoder->fourcc,
     cfg->g_w,
@@ -181,6 +187,9 @@ static void pass1(vpx_image_t *raw,
   while (vpx_img_read(raw, infile)) {
     ++frame_count;
     encode_frame(&codec, raw, frame_count, 1, 0, VPX_DL_GOOD_QUALITY, writer);
+
+    if (max_frames > 0 && frame_count >= max_frames)
+      break;
   }
 
   // Flush encoder.
@@ -213,11 +222,14 @@ int main(int argc, char **argv) {
   const char *const height_arg = argv[3];
   const char *const infile_arg = argv[4];
   const char *const outfile_arg = argv[5];
+  int max_frames = 0;
   exec_name = argv[0];
 
-  if (argc != 6)
+  if (argc != 7)
     die("Invalid number of arguments.");
 
+  max_frames = strtol(argv[6], NULL, 0);
+
   encoder = get_vpx_encoder_by_name(codec_arg);
   if (!encoder)
     die("Unsupported codec.");
@@ -249,13 +261,13 @@ int main(int argc, char **argv) {
 
   // Pass 0
   cfg.g_pass = VPX_RC_FIRST_PASS;
-  stats = pass0(&raw, infile, encoder, &cfg);
+  stats = pass0(&raw, infile, encoder, &cfg, max_frames);
 
   // Pass 1
   rewind(infile);
   cfg.g_pass = VPX_RC_LAST_PASS;
   cfg.rc_twopass_stats_in = stats;
-  pass1(&raw, infile, outfile_arg, encoder, &cfg);
+  pass1(&raw, infile, outfile_arg, encoder, &cfg, max_frames);
   free(stats.buf);
 
   vpx_img_free(&raw);