On Mon, 23 Jul 2012, Kieran Kunhya wrote:

---
libavcodec/libfdk-aacenc.c |   15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/libavcodec/libfdk-aacenc.c b/libavcodec/libfdk-aacenc.c
index f2c3fbd..4d7aa7b 100644
--- a/libavcodec/libfdk-aacenc.c
+++ b/libavcodec/libfdk-aacenc.c
@@ -33,6 +33,8 @@ typedef struct AACContext {
    int afterburner;
    int eld_sbr;
    int signaling;
+    int latm;
+    int header_period;

    AudioFrameQueue afq;
} AACContext;
@@ -45,6 +47,8 @@ static const AVOption aac_enc_options[] = {
    { "implicit", "Implicit backwards compatible signaling", 0, AV_OPT_TYPE_CONST, { 0 }, 
0, 0, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, "signaling" },
    { "explicit_sbr", "Explicit SBR, implicit PS signaling", 0, AV_OPT_TYPE_CONST, { 1 }, 
0, 0, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, "signaling" },
    { "explicit_hierarchical", "Explicit hierarchical signaling", 0, AV_OPT_TYPE_CONST, { 
2 }, 0, 0, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, "signaling" },
+    { "latm", "Output LATM/LOAS encapsulated data", offsetof(AACContext, 
latm), AV_OPT_TYPE_INT, { 0 }, 0, 1, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM },
+    { "header_period", "StreamMuxConfig and PCE repetition period (in 
frames)", offsetof(AACContext, header_period), AV_OPT_TYPE_INT, { 0 }, 0, 0xffff, 
AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM },
    { NULL }
};

@@ -204,12 +208,21 @@ static av_cold int aac_encode_init(AVCodecContext *avctx)
    /* Choose bitstream format - if global header is requested, use
     * raw access units, otherwise use ADTS. */
    if ((err = aacEncoder_SetParam(s->handle, AACENC_TRANSMUX,
-                                   avctx->flags & CODEC_FLAG_GLOBAL_HEADER ? 0 
: 2)) != AACENC_OK) {
+                                   avctx->flags & CODEC_FLAG_GLOBAL_HEADER ? 0 : 
s->latm ? 10 : 2)) != AACENC_OK) {
        av_log(avctx, AV_LOG_ERROR, "Unable to set the transmux format: %s\n",
               aac_get_error(err));
        goto error;
    }

+    if (s->latm && s->header_period) {
+        if ((err = aacEncoder_SetParam(s->handle, AACENC_HEADER_PERIOD,
+                                       s->header_period)) != AACENC_OK) {
+             av_log(avctx, AV_LOG_ERROR, "Unable to set header period: %s\n",
+                    aac_get_error(err));
+             goto error;
+        }
+    }
+
    /* If no signaling mode is chosen, use explicit hierarchical signaling
     * if using mp4 mode (raw access units, with global header) and
     * implicit signaling if using ADTS. */
--
1.7.9.5

LGTM

// Martin
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