avio: move init_put_byte() to a new private header and rename it

init_put_byte should never be used outside of lavf, since
sizeof(AVIOContext) isn't part of public ABI.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit e731b8d872)

libavformat/asfenc.c

@@ -22,6 +22,7 @@
 #include "metadata.h"
 #include "riff.h"
 #include "asf.h"
+#include "avio_internal.h"
 
 #undef NDEBUG
 #include <assert.h>
@@ -578,7 +579,7 @@ static int asf_write_header(AVFormatContext *s)
     asf->packet_nb_payloads = 0;
     asf->packet_timestamp_start = -1;
     asf->packet_timestamp_end = -1;
-    init_put_byte(&asf->pb, asf->packet_buf, s->packet_size, 1,
+    ffio_init_context(&asf->pb, asf->packet_buf, s->packet_size, 1,
                   NULL, NULL, NULL, NULL);
 
     return 0;
@@ -676,7 +677,7 @@ static void flush_packet(AVFormatContext *s)
     asf->packet_nb_payloads = 0;
     asf->packet_timestamp_start = -1;
     asf->packet_timestamp_end = -1;
-    init_put_byte(&asf->pb, asf->packet_buf, s->packet_size, 1,
+    ffio_init_context(&asf->pb, asf->packet_buf, s->packet_size, 1,
                   NULL, NULL, NULL, NULL);
 }
 

libavformat/avio.h

@@ -361,9 +361,8 @@ typedef struct {
 
 #if FF_API_OLD_AVIO
 typedef attribute_deprecated AVIOContext ByteIOContext;
-#endif
 
-int init_put_byte(AVIOContext *s,
+attribute_deprecated int init_put_byte(AVIOContext *s,
                   unsigned char *buffer,
                   int buffer_size,
                   int write_flag,
@@ -371,6 +370,7 @@ int init_put_byte(AVIOContext *s,
                   int (*read_packet)(void *opaque, uint8_t *buf, int buf_size),
                   int (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
                   int64_t (*seek)(void *opaque, int64_t offset, int whence));
+#endif
 AVIOContext *av_alloc_put_byte(
                   unsigned char *buffer,
                   int buffer_size,

libavformat/avio_internal.h

@@ -0,0 +1,35 @@
+/*
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVFORMAT_AVIO_INTERNAL_H
+#define AVFORMAT_AVIO_INTERNAL_H
+
+#include "avio.h"
+
+int ffio_init_context(AVIOContext *s,
+                  unsigned char *buffer,
+                  int buffer_size,
+                  int write_flag,
+                  void *opaque,
+                  int (*read_packet)(void *opaque, uint8_t *buf, int buf_size),
+                  int (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
+                  int64_t (*seek)(void *opaque, int64_t offset, int whence));
+
+
+#endif // AVFORMAT_AVIO_INTERNAL_H

libavformat/aviobuf.c

@@ -23,6 +23,7 @@
 #include "libavutil/intreadwrite.h"
 #include "avformat.h"
 #include "avio.h"
+#include "avio_internal.h"
 #include "internal.h"
 #include <stdarg.h>
 
@@ -40,7 +41,7 @@ static void fill_buffer(AVIOContext *s);
 static int url_resetbuf(AVIOContext *s, int flags);
 #endif
 
-int init_put_byte(AVIOContext *s,
+int ffio_init_context(AVIOContext *s,
                   unsigned char *buffer,
                   int buffer_size,
                   int write_flag,
@@ -73,6 +74,21 @@ int init_put_byte(AVIOContext *s,
     return 0;
 }
 
+#if FF_API_OLD_AVIO
+int init_put_byte(AVIOContext *s,
+                  unsigned char *buffer,
+                  int buffer_size,
+                  int write_flag,
+                  void *opaque,
+                  int (*read_packet)(void *opaque, uint8_t *buf, int buf_size),
+                  int (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
+                  int64_t (*seek)(void *opaque, int64_t offset, int whence))
+{
+    return ffio_init_context(s, buffer, buffer_size, write_flag, opaque,
+                                read_packet, write_packet, seek);
+}
+#endif
+
 AVIOContext *av_alloc_put_byte(
                   unsigned char *buffer,
                   int buffer_size,
@@ -83,7 +99,7 @@ AVIOContext *av_alloc_put_byte(
                   int64_t (*seek)(void *opaque, int64_t offset, int whence))
 {
     AVIOContext *s = av_mallocz(sizeof(AVIOContext));
-    init_put_byte(s, buffer, buffer_size, write_flag, opaque,
+    ffio_init_context(s, buffer, buffer_size, write_flag, opaque,
                   read_packet, write_packet, seek);
     return s;
 }
@@ -664,7 +680,7 @@ int url_fdopen(AVIOContext **s, URLContext *h)
         return AVERROR(ENOMEM);
     }
 
-    if (init_put_byte(*s, buffer, buffer_size,
+    if (ffio_init_context(*s, buffer, buffer_size,
                       (h->flags & URL_WRONLY || h->flags & URL_RDWR), h,
                       url_read, url_write, url_seek) < 0) {
         av_free(buffer);
@@ -865,7 +881,7 @@ int url_open_buf(AVIOContext **s, uint8_t *buf, int buf_size, int flags)
     *s = av_mallocz(sizeof(AVIOContext));
     if(!*s)
         return AVERROR(ENOMEM);
-    ret = init_put_byte(*s, buf, buf_size,
+    ret = ffio_init_context(*s, buf, buf_size,
                         (flags & URL_WRONLY || flags & URL_RDWR),
                         NULL, NULL, NULL, NULL);
     if(ret != 0)
@@ -964,7 +980,7 @@ static int url_open_dyn_buf_internal(AVIOContext **s, int max_packet_size)
         return AVERROR(ENOMEM);
     }
     d->io_buffer_size = io_buffer_size;
-    ret = init_put_byte(*s, d->io_buffer, io_buffer_size,
+    ret = ffio_init_context(*s, d->io_buffer, io_buffer_size,
                         1, d, NULL,
                         max_packet_size ? dyn_packet_buf_write : dyn_buf_write,
                         max_packet_size ? NULL : dyn_buf_seek);

libavformat/id3v2.c

@@ -24,6 +24,7 @@
 #include "libavutil/avstring.h"
 #include "libavutil/intreadwrite.h"
 #include "metadata.h"
+#include "avio_internal.h"
 
 int ff_id3v2_match(const uint8_t *buf, const char * magic)
 {
@@ -216,7 +217,7 @@ static void ff_id3v2_parse(AVFormatContext *s, int len, uint8_t version, uint8_t
                         j--;
                     }
                 }
-                init_put_byte(&pb, buffer, j, 0, NULL, NULL, NULL, NULL);
+                ffio_init_context(&pb, buffer, j, 0, NULL, NULL, NULL, NULL);
                 read_ttag(s, &pb, j, tag);
             } else {
                 read_ttag(s, s->pb, tlen, tag);

libavformat/matroskadec.c

@@ -31,6 +31,7 @@
 #include <stdio.h>
 #include "avformat.h"
 #include "internal.h"
+#include "avio_internal.h"
 /* For ff_codec_get_id(). */
 #include "riff.h"
 #include "isom.h"
@@ -698,7 +699,7 @@ static int matroska_ebmlnum_uint(MatroskaDemuxContext *matroska,
                                  uint8_t *data, uint32_t size, uint64_t *num)
 {
     AVIOContext pb;
-    init_put_byte(&pb, data, size, 0, NULL, NULL, NULL, NULL);
+    ffio_init_context(&pb, data, size, 0, NULL, NULL, NULL, NULL);
     return ebml_read_num(matroska, &pb, FFMIN(size, 8), num);
 }
 
@@ -1328,7 +1329,7 @@ static int matroska_read_header(AVFormatContext *s, AVFormatParameters *ap)
         } else if (!strcmp(track->codec_id, "A_MS/ACM")
                    && track->codec_priv.size >= 14
                    && track->codec_priv.data != NULL) {
-            init_put_byte(&b, track->codec_priv.data, track->codec_priv.size,
+            ffio_init_context(&b, track->codec_priv.data, track->codec_priv.size,
                           URL_RDONLY, NULL, NULL, NULL, NULL);
             ff_get_wav_header(&b, st->codec, track->codec_priv.size);
             codec_id = st->codec->codec_id;
@@ -1373,7 +1374,7 @@ static int matroska_read_header(AVFormatContext *s, AVFormatParameters *ap)
             extradata = av_mallocz(extradata_size);
             if (extradata == NULL)
                 return AVERROR(ENOMEM);
-            init_put_byte(&b, extradata, extradata_size, 1,
+            ffio_init_context(&b, extradata, extradata_size, 1,
                           NULL, NULL, NULL, NULL);
             put_buffer(&b, "TTA1", 4);
             put_le16(&b, 1);
@@ -1390,7 +1391,7 @@ static int matroska_read_header(AVFormatContext *s, AVFormatParameters *ap)
         } else if (codec_id == CODEC_ID_RA_288 || codec_id == CODEC_ID_COOK ||
                    codec_id == CODEC_ID_ATRAC3 || codec_id == CODEC_ID_SIPR) {
             int flavor;
-            init_put_byte(&b, track->codec_priv.data,track->codec_priv.size,
+            ffio_init_context(&b, track->codec_priv.data,track->codec_priv.size,
                           0, NULL, NULL, NULL, NULL);
             url_fskip(&b, 22);
             flavor                       = get_be16(&b);

libavformat/mmst.c

@@ -31,6 +31,7 @@
 #include "avformat.h"
 #include "mms.h"
 #include "internal.h"
+#include "avio_internal.h"
 #include "libavutil/intreadwrite.h"
 #include "libavcodec/bytestream.h"
 #include "network.h"
@@ -155,7 +156,7 @@ static void mms_put_utf16(MMSContext *mms, uint8_t *src)
     AVIOContext bic;
     int size = mms->write_out_ptr - mms->out_buffer;
     int len;
-    init_put_byte(&bic, mms->write_out_ptr,
+    ffio_init_context(&bic, mms->write_out_ptr,
             sizeof(mms->out_buffer) - size, 1, NULL, NULL, NULL, NULL);
 
     len = avio_put_str16le(&bic, src);

libavformat/mov.c

@@ -29,6 +29,7 @@
 #include "libavutil/intreadwrite.h"
 #include "libavutil/avstring.h"
 #include "avformat.h"
+#include "avio_internal.h"
 #include "riff.h"
 #include "isom.h"
 #include "libavcodec/get_bits.h"
@@ -2123,7 +2124,7 @@ static int mov_read_cmov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
     get_buffer(pb, cmov_data, cmov_len);
     if(uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
         goto free_and_return;
-    if(init_put_byte(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
+    if(ffio_init_context(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
         goto free_and_return;
     atom.type = MKTAG('m','o','o','v');
     atom.size = moov_len;

libavformat/mpegts.c

@@ -29,6 +29,7 @@
 #include "avformat.h"
 #include "mpegts.h"
 #include "internal.h"
+#include "avio_internal.h"
 #include "seek.h"
 #include "mpeg.h"
 #include "isom.h"
@@ -855,7 +856,7 @@ static int mp4_read_iods(AVFormatContext *s, const uint8_t *buf, unsigned size,
     int tag;
     unsigned len;
 
-    init_put_byte(&pb, buf, size, 0, NULL, NULL, NULL, NULL);
+    ffio_init_context(&pb, buf, size, 0, NULL, NULL, NULL, NULL);
 
     len = ff_mp4_read_descr(s, &pb, &tag);
     if (tag == MP4IODescrTag) {
@@ -914,7 +915,7 @@ int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type
         if (st->codec->codec_id == CODEC_ID_AAC_LATM &&
             mp4_dec_config_descr_len && mp4_es_id == pid) {
             AVIOContext pb;
-            init_put_byte(&pb, mp4_dec_config_descr,
+            ffio_init_context(&pb, mp4_dec_config_descr,
                           mp4_dec_config_descr_len, 0, NULL, NULL, NULL, NULL);
             ff_mp4_read_dec_config_descr(fc, st, &pb);
             if (st->codec->codec_id == CODEC_ID_AAC &&

libavformat/rdt.c

@@ -33,6 +33,7 @@
 #include "libavutil/md5.h"
 #include "rm.h"
 #include "internal.h"
+#include "avio_internal.h"
 #include "libavcodec/get_bits.h"
 
 struct RDTDemuxContext {
@@ -150,7 +151,7 @@ rdt_load_mdpr (PayloadContext *rdt, AVStream *st, int rule_nr)
      */
     if (!rdt->mlti_data)
         return -1;
-    init_put_byte(&pb, rdt->mlti_data, rdt->mlti_data_size, 0,
+    ffio_init_context(&pb, rdt->mlti_data, rdt->mlti_data_size, 0,
                   NULL, NULL, NULL, NULL);
     tag = get_le32(&pb);
     if (tag == MKTAG('M', 'L', 'T', 'I')) {
@@ -300,7 +301,7 @@ rdt_parse_packet (AVFormatContext *ctx, PayloadContext *rdt, AVStream *st,
     if (rdt->audio_pkt_cnt == 0) {
         int pos;
 
-        init_put_byte(&pb, buf, len, 0, NULL, NULL, NULL, NULL);
+        ffio_init_context(&pb, buf, len, 0, NULL, NULL, NULL, NULL);
         flags = (flags & RTP_FLAG_KEY) ? 2 : 0;
         res = ff_rm_parse_packet (rdt->rmctx, &pb, st, rdt->rmst[st->index], len, pkt,
                                   &seq, flags, *timestamp);

libavformat/rtpdec_asf.c

@@ -32,6 +32,7 @@
 #include "rtpdec_formats.h"
 #include "rtsp.h"
 #include "asf.h"
+#include "avio_internal.h"
 
 /**
  * From MSDN 2.2.1.4, we learn that ASF data packets over RTP should not
@@ -84,7 +85,7 @@ static int packetizer_read(void *opaque, uint8_t *buf, int buf_size)
 
 static void init_packetizer(AVIOContext *pb, uint8_t *buf, int len)
 {
-    init_put_byte(pb, buf, len, 0, NULL, packetizer_read, NULL, NULL);
+    ffio_init_context(pb, buf, len, 0, NULL, packetizer_read, NULL, NULL);
 
     /* this "fills" the buffer with its current content */
     pb->pos     = len;
@@ -176,7 +177,7 @@ static int asfrtp_parse_packet(AVFormatContext *s, PayloadContext *asf,
 
         av_freep(&asf->buf);
 
-        init_put_byte(pb, buf, len, 0, NULL, NULL, NULL, NULL);
+        ffio_init_context(pb, buf, len, 0, NULL, NULL, NULL, NULL);
 
         while (url_ftell(pb) + 4 < len) {
             int start_off = url_ftell(pb);

libavformat/rtpdec_qt.c

@@ -26,6 +26,7 @@
  */
 
 #include "avformat.h"
+#include "avio_internal.h"
 #include "rtp.h"
 #include "rtpdec.h"
 #include "isom.h"
@@ -69,7 +70,7 @@ static int qt_rtp_parse_packet(AVFormatContext *s, PayloadContext *qt,
      * http://developer.apple.com/quicktime/icefloe/dispatch026.html
      */
     init_get_bits(&gb, buf, len << 3);
-    init_put_byte(&pb, buf, len, 0, NULL, NULL, NULL, NULL);
+    ffio_init_context(&pb, buf, len, 0, NULL, NULL, NULL, NULL);
 
     if (len < 4)
         return AVERROR_INVALIDDATA;

libavformat/rtsp.c

@@ -25,6 +25,7 @@
 #include "libavutil/parseutils.h"
 #include "libavutil/random_seed.h"
 #include "avformat.h"
+#include "avio_internal.h"
 
 #include <sys/time.h>
 #if HAVE_POLL_H
@@ -1913,7 +1914,7 @@ static int rtp_read_header(AVFormatContext *s,
              port, payload_type);
     av_log(s, AV_LOG_VERBOSE, "SDP:\n%s\n", sdp);
 
-    init_put_byte(&pb, sdp, strlen(sdp), 0, NULL, NULL, NULL, NULL);
+    ffio_init_context(&pb, sdp, strlen(sdp), 0, NULL, NULL, NULL, NULL);
     s->pb = &pb;
 
     /* sdp_read_header initializes this again */

libavformat/sapdec.c

@@ -25,6 +25,7 @@
 #include "network.h"
 #include "os_support.h"
 #include "internal.h"
+#include "avio_internal.h"
 #if HAVE_POLL_H
 #include <poll.h>
 #endif
@@ -142,7 +143,7 @@ static int sap_read_header(AVFormatContext *s,
     }
 
     av_log(s, AV_LOG_VERBOSE, "SDP:\n%s\n", sap->sdp);
-    init_put_byte(&sap->sdp_pb, sap->sdp, strlen(sap->sdp), 0, NULL, NULL,
+    ffio_init_context(&sap->sdp_pb, sap->sdp, strlen(sap->sdp), 0, NULL, NULL,
                   NULL, NULL);
 
     infmt = av_find_input_format("sdp");