shithub: libopusenc

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Implement ope_flush_header()

--- a/include/opusenc.h

+++ b/include/opusenc.h

@@ -53,6 +53,7 @@

 #define OPE_UNIMPLEMENTED -11

 #define OPE_BAD_ARG -12

 #define OPE_INTERNAL_ERROR -13

+#define OPE_TOO_LATE -14

 /* These are the "raw" request values -- they should usually not be used. */

 #define OPE_SET_DECISION_DELAY_REQUEST 14000

@@ -122,6 +123,9 @@

 /** Sets the Opus comment vendor string (optional, defaults to library info). */

 OPE_EXPORT int ope_set_vendor_string(OggOpusEnc *enc, const char *vendor);

+

+/** Write out the header now rather than wait for audio to begin. */

+OPE_EXPORT int ope_flush_header(OggOpusEnc *enc);

 /** Goes straight to the libopus ctl() functions. */

 OPE_EXPORT int ope_encoder_ctl(OggOpusEnc *enc, int request, ...);

--- a/src/opusenc.c

+++ b/src/opusenc.c

@@ -452,6 +452,7 @@

 /* Add a comment to the file (can only be called before encoding samples). */

 int ope_add_comment(OggOpusEnc *enc, const char *tag, const char *val) {

+  if (enc->stream_is_init) return OPE_TOO_LATE;

   if (comment_add(&enc->comment, &enc->comment_length, tag, val)) return OPE_INTERNAL_ERROR;

   return OPE_OK;

 }

@@ -459,6 +460,7 @@

 int ope_add_picture(OggOpusEnc *enc, const char *spec) {

   const char *error_message;

   char *picture_data;

+  if (enc->stream_is_init) return OPE_TOO_LATE;

   picture_data = parse_picture_specification(spec, &error_message, &enc->seen_file_icons);

   if(picture_data==NULL){

     /* FIXME: return proper errors rather than printing a message. */

@@ -472,9 +474,15 @@

 /* Sets the Opus comment vendor string (optional, defaults to library info). */

 int ope_set_vendor_string(OggOpusEnc *enc, const char *vendor) {

+  if (enc->stream_is_init) return OPE_TOO_LATE;

   (void)enc;

   (void)vendor;

   return OPE_UNIMPLEMENTED;

+}

+

+int ope_flush_header(OggOpusEnc *enc) {

+  if (enc->stream_is_init) return OPE_TOO_LATE;

+  else init_stream(enc);

 }

 /* Goes straight to the libopus ctl() functions. */