Add missing #includes for *INT64_MAX and *INT64_C
[ffmpeg.git] / libavformat / oggenc.c
index c23a1ad..e96cde7 100644 (file)
@@ -19,6 +19,8 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#include <stdint.h>
+
 #include "libavutil/crc.h"
 #include "libavutil/mathematics.h"
 #include "libavutil/opt.h"
@@ -34,6 +36,7 @@
 #define MAX_PAGE_SIZE 65025
 
 typedef struct {
+    int64_t start_granule;
     int64_t granule;
     int stream_index;
     uint8_t flags;
@@ -67,14 +70,17 @@ typedef struct {
     const AVClass *class;
     OGGPageList *page_list;
     int pref_size; ///< preferred page size (0 => fill all segments)
+    int64_t pref_duration;      ///< preferred page duration (0 => fill all segments)
 } OGGContext;
 
 #define OFFSET(x) offsetof(OGGContext, x)
 #define PARAM AV_OPT_FLAG_ENCODING_PARAM
 
 static const AVOption options[] = {
-    { "pagesize", "preferred page size in bytes",
+    { "pagesize", "preferred page size in bytes (deprecated)",
         OFFSET(pref_size), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, MAX_PAGE_SIZE, PARAM },
+    { "page_duration", "preferred page duration, in microseconds",
+        OFFSET(pref_duration), AV_OPT_TYPE_INT, { .i64 = 1000000 }, 0, INT64_MAX, PARAM },
     { NULL },
 };
 
@@ -177,6 +183,7 @@ static int ogg_buffer_page(AVFormatContext *s, OGGStreamContext *oggstream)
         return AVERROR(ENOMEM);
     l->page = oggstream->page;
 
+    oggstream->page.start_granule = oggstream->page.granule;
     oggstream->page_count++;
     ogg_reset_cur_page(oggstream);
 
@@ -210,6 +217,12 @@ static int ogg_buffer_data(AVFormatContext *s, AVStream *st,
         flush = 1;
     }
 
+    // avoid a continued page
+    if (!header && oggstream->page.size > 0 &&
+        MAX_PAGE_SIZE - oggstream->page.size < size) {
+        ogg_buffer_page(s, oggstream);
+    }
+
     for (i = 0; i < total_segments; ) {
         OGGPage *page = &oggstream->page;
 
@@ -232,9 +245,19 @@ static int ogg_buffer_data(AVFormatContext *s, AVStream *st,
         if (i == total_segments)
             page->granule = granule;
 
-        if (!header && (page->segments_count == 255 ||
-            (ogg->pref_size > 0 && page->size >= ogg->pref_size))) {
-           ogg_buffer_page(s, oggstream);
+        if (!header) {
+            AVStream *st = s->streams[page->stream_index];
+
+            int64_t start = av_rescale_q(page->start_granule, st->time_base,
+                                         AV_TIME_BASE_Q);
+            int64_t next  = av_rescale_q(page->granule, st->time_base,
+                                         AV_TIME_BASE_Q);
+
+            if (page->segments_count == 255 ||
+                (ogg->pref_size     > 0 && page->size   >= ogg->pref_size) ||
+                (ogg->pref_duration > 0 && next - start >= ogg->pref_duration)) {
+                ogg_buffer_page(s, oggstream);
+            }
         }
     }
 
@@ -336,23 +359,61 @@ static int ogg_build_speex_headers(AVCodecContext *avctx,
     return 0;
 }
 
+#define OPUS_HEADER_SIZE 19
+
+static int ogg_build_opus_headers(AVCodecContext *avctx,
+                                  OGGStreamContext *oggstream, int bitexact,
+                                  AVDictionary **m)
+{
+    uint8_t *p;
+
+    if (avctx->extradata_size < OPUS_HEADER_SIZE)
+        return -1;
+
+    /* first packet: Opus header */
+    p = av_mallocz(avctx->extradata_size);
+    if (!p)
+        return AVERROR(ENOMEM);
+    oggstream->header[0] = p;
+    oggstream->header_len[0] = avctx->extradata_size;
+    bytestream_put_buffer(&p, avctx->extradata, avctx->extradata_size);
+
+    /* second packet: VorbisComment */
+    p = ogg_write_vorbiscomment(8, bitexact, &oggstream->header_len[1], m, 0);
+    if (!p)
+        return AVERROR(ENOMEM);
+    oggstream->header[1] = p;
+    bytestream_put_buffer(&p, "OpusTags", 8);
+
+    return 0;
+}
+
 static int ogg_write_header(AVFormatContext *s)
 {
+    OGGContext *ogg = s->priv_data;
     OGGStreamContext *oggstream;
     int i, j;
 
+    if (ogg->pref_size)
+        av_log(s, AV_LOG_WARNING, "The pagesize option is deprecated\n");
+
     for (i = 0; i < s->nb_streams; i++) {
         AVStream *st = s->streams[i];
         unsigned serial_num = i;
 
         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
-            avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
+            if (st->codec->codec_id == AV_CODEC_ID_OPUS)
+                /* Opus requires a fixed 48kHz clock */
+                avpriv_set_pts_info(st, 64, 1, 48000);
+            else
+                avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
         else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
             avpriv_set_pts_info(st, 64, st->codec->time_base.num, st->codec->time_base.den);
         if (st->codec->codec_id != AV_CODEC_ID_VORBIS &&
             st->codec->codec_id != AV_CODEC_ID_THEORA &&
             st->codec->codec_id != AV_CODEC_ID_SPEEX  &&
-            st->codec->codec_id != AV_CODEC_ID_FLAC) {
+            st->codec->codec_id != AV_CODEC_ID_FLAC   &&
+            st->codec->codec_id != AV_CODEC_ID_OPUS) {
             av_log(s, AV_LOG_ERROR, "Unsupported codec id in stream %d\n", i);
             return -1;
         }
@@ -394,6 +455,15 @@ static int ogg_write_header(AVFormatContext *s)
                 av_freep(&st->priv_data);
                 return err;
             }
+        } else if (st->codec->codec_id == AV_CODEC_ID_OPUS) {
+            int err = ogg_build_opus_headers(st->codec, oggstream,
+                                             st->codec->flags & CODEC_FLAG_BITEXACT,
+                                             &s->metadata);
+            if (err) {
+                av_log(s, AV_LOG_ERROR, "Error writing Opus headers\n");
+                av_freep(&st->priv_data);
+                return err;
+            }
         } else {
             uint8_t *p;
             const char *cstr = st->codec->codec_id == AV_CODEC_ID_VORBIS ? "vorbis" : "theora";
@@ -446,6 +516,9 @@ static int ogg_write_header(AVFormatContext *s)
         }
         ogg_buffer_page(s, oggstream);
     }
+
+    oggstream->page.start_granule = AV_NOPTS_VALUE;
+
     return 0;
 }
 
@@ -490,9 +563,14 @@ static int ogg_write_packet(AVFormatContext *s, AVPacket *pkt)
             pframe_count = 0;
         }
         granule = (oggstream->last_kf_pts<<oggstream->kfgshift) | pframe_count;
-    } else
+    } else if (st->codec->codec_id == AV_CODEC_ID_OPUS)
+        granule = pkt->pts + pkt->duration + av_rescale_q(st->codec->delay, (AVRational){ 1, st->codec->sample_rate }, st->time_base);
+    else
         granule = pkt->pts + pkt->duration;
 
+    if (oggstream->page.start_granule == AV_NOPTS_VALUE)
+        oggstream->page.start_granule = pkt->pts;
+
     ret = ogg_buffer_data(s, st, pkt->data, pkt->size, granule, 0);
     if (ret < 0)
         return ret;
@@ -508,9 +586,13 @@ static int ogg_write_trailer(AVFormatContext *s)
 {
     int i;
 
-    /* flush current page */
-    for (i = 0; i < s->nb_streams; i++)
-        ogg_buffer_page(s, s->streams[i]->priv_data);
+    /* flush current page if needed */
+    for (i = 0; i < s->nb_streams; i++) {
+        OGGStreamContext *oggstream = s->streams[i]->priv_data;
+
+        if (oggstream->page.size > 0)
+            ogg_buffer_page(s, oggstream);
+    }
 
     ogg_write_pages(s, 1);
 
@@ -518,7 +600,8 @@ static int ogg_write_trailer(AVFormatContext *s)
         AVStream *st = s->streams[i];
         OGGStreamContext *oggstream = st->priv_data;
         if (st->codec->codec_id == AV_CODEC_ID_FLAC ||
-            st->codec->codec_id == AV_CODEC_ID_SPEEX) {
+            st->codec->codec_id == AV_CODEC_ID_SPEEX ||
+            st->codec->codec_id == AV_CODEC_ID_OPUS) {
             av_free(oggstream->header[0]);
         }
         av_freep(&oggstream->header[1]);
@@ -531,12 +614,13 @@ AVOutputFormat ff_ogg_muxer = {
     .name              = "ogg",
     .long_name         = NULL_IF_CONFIG_SMALL("Ogg"),
     .mime_type         = "application/ogg",
-    .extensions        = "ogg,ogv,spx",
+    .extensions        = "ogg,ogv,spx,opus",
     .priv_data_size    = sizeof(OGGContext),
     .audio_codec       = AV_CODEC_ID_FLAC,
     .video_codec       = AV_CODEC_ID_THEORA,
     .write_header      = ogg_write_header,
     .write_packet      = ogg_write_packet,
     .write_trailer     = ogg_write_trailer,
+    .flags             = AVFMT_TS_NEGATIVE,
     .priv_class        = &ogg_muxer_class,
 };