avformat: Constify the API wrt AV(In|Out)putFormat

[ffmpeg] / libavformat / rtpenc_mpegts.c

diff --git a/libavformat/rtpenc_mpegts.c b/libavformat/rtpenc_mpegts.c
index 28522f89134e7477fcda0d8d48b05a70bfbe9a25..36c0979ca1e24aded7058083cb25c3b996e186dc 100644 (file)
--- a/libavformat/rtpenc_mpegts.c
+++ b/libavformat/rtpenc_mpegts.c
@@ -20,13 +20,17 @@
  */
 
 #include "libavutil/mathematics.h"
+#include "libavutil/opt.h"
 #include "avformat.h"
 #include "avio_internal.h"
 
 typedef struct MuxChain {
+    const AVClass *class;
     AVFormatContext *mpegts_ctx;
     AVFormatContext *rtp_ctx;
     AVPacket *pkt;
+    AVDictionary* mpegts_muxer_options;
+    AVDictionary* rtp_muxer_options;
 } MuxChain;
 
 static int rtp_mpegts_write_close(AVFormatContext *s)
@@ -52,10 +56,12 @@ static int rtp_mpegts_write_header(AVFormatContext *s)
 {
     MuxChain *chain = s->priv_data;
     AVFormatContext *mpegts_ctx = NULL, *rtp_ctx = NULL;
-    ff_const59 AVOutputFormat *mpegts_format = av_guess_format("mpegts", NULL, NULL);
-    ff_const59 AVOutputFormat *rtp_format    = av_guess_format("rtp", NULL, NULL);
+    const AVOutputFormat *mpegts_format = av_guess_format("mpegts", NULL, NULL);
+    const AVOutputFormat *rtp_format    = av_guess_format("rtp", NULL, NULL);
     int i, ret = AVERROR(ENOMEM);
     AVStream *st;
+    AVDictionary *mpegts_muxer_options = NULL;
+    AVDictionary *rtp_muxer_options = NULL;
 
     if (!mpegts_format || !rtp_format)
         return AVERROR(ENOSYS);
@@ -74,12 +80,19 @@ static int rtp_mpegts_write_header(AVFormatContext *s)
             goto fail;
         st->time_base           = s->streams[i]->time_base;
         st->sample_aspect_ratio = s->streams[i]->sample_aspect_ratio;
+        st->id                  = s->streams[i]->id;
         avcodec_parameters_copy(st->codecpar, s->streams[i]->codecpar);
     }
     if ((ret = avio_open_dyn_buf(&mpegts_ctx->pb)) < 0)
         goto fail;
-    if ((ret = avformat_write_header(mpegts_ctx, NULL)) < 0)
+
+    av_dict_copy(&mpegts_muxer_options, chain->mpegts_muxer_options, 0);
+
+    ret = avformat_write_header(mpegts_ctx, &mpegts_muxer_options);
+    av_dict_free(&mpegts_muxer_options);
+    if (ret < 0)
         goto fail;
+
     for (i = 0; i < s->nb_streams; i++)
         s->streams[i]->time_base = mpegts_ctx->streams[i]->time_base;
 
@@ -101,8 +114,12 @@ static int rtp_mpegts_write_header(AVFormatContext *s)
     st->time_base.den   = 90000;
     st->codecpar->codec_id = AV_CODEC_ID_MPEG2TS;
     rtp_ctx->pb = s->pb;
-    if ((ret = avformat_write_header(rtp_ctx, NULL)) < 0)
+    av_dict_copy(&rtp_muxer_options, chain->rtp_muxer_options, 0);
+    ret = avformat_write_header(rtp_ctx, &rtp_muxer_options);
+    av_dict_free(&rtp_muxer_options);
+    if (ret < 0)
         goto fail;
+
     chain->rtp_ctx = rtp_ctx;
 
     return 0;
@@ -155,6 +172,21 @@ static int rtp_mpegts_write_packet(AVFormatContext *s, AVPacket *pkt)
     return ret;
 }
 
+#define OFFSET(x) offsetof(MuxChain, x)
+#define E AV_OPT_FLAG_ENCODING_PARAM
+static const AVOption options[] = {
+    { "mpegts_muxer_options", "set list of options for the MPEG-TS muxer", OFFSET(mpegts_muxer_options), AV_OPT_TYPE_DICT, {.str = NULL}, 0, 0, E },
+    { "rtp_muxer_options",    "set list of options for the RTP muxer",     OFFSET(rtp_muxer_options),    AV_OPT_TYPE_DICT, {.str = NULL}, 0, 0, E },
+    { NULL },
+};
+
+static const AVClass rtp_mpegts_class = {
+    .class_name = "rtp_mpegts muxer",
+    .item_name  = av_default_item_name,
+    .option     = options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
 AVOutputFormat ff_rtp_mpegts_muxer = {
     .name              = "rtp_mpegts",
     .long_name         = NULL_IF_CONFIG_SMALL("RTP/mpegts output format"),
@@ -164,4 +196,5 @@ AVOutputFormat ff_rtp_mpegts_muxer = {
     .write_header      = rtp_mpegts_write_header,
     .write_packet      = rtp_mpegts_write_packet,
     .write_trailer     = rtp_mpegts_write_close,
+    .priv_class        = &rtp_mpegts_class,
 };