avformat/http: return EINVAL if ff_http_do_new_request is called with non-http URLContext
[ffmpeg.git] / libavformat / spdifdec.c
index b0e9afb..21bfce4 100644 (file)
  * @author Anssi Hannula
  */
 
+#include "libavutil/bswap.h"
+
+#include "libavcodec/ac3.h"
+#include "libavcodec/adts_parser.h"
+
 #include "avformat.h"
 #include "spdif.h"
-#include "libavcodec/ac3.h"
-#include "libavcodec/aacadtsdec.h"
 
 static int spdif_get_offset_and_codec(AVFormatContext *s,
                                       enum IEC61937DataType data_type,
                                       const char *buf, int *offset,
-                                      enum CodecID *codec)
+                                      enum AVCodecID *codec)
 {
-    AACADTSHeaderInfo aac_hdr;
-    GetBitContext gbc;
+    uint32_t samples;
+    uint8_t frames;
+    int ret;
 
     switch (data_type & 0xff) {
     case IEC61937_AC3:
         *offset = AC3_FRAME_SIZE << 2;
-        *codec = CODEC_ID_AC3;
+        *codec = AV_CODEC_ID_AC3;
         break;
     case IEC61937_MPEG1_LAYER1:
         *offset = spdif_mpeg_pkt_offset[1][0];
-        *codec = CODEC_ID_MP1;
+        *codec = AV_CODEC_ID_MP1;
         break;
     case IEC61937_MPEG1_LAYER23:
         *offset = spdif_mpeg_pkt_offset[1][0];
-        *codec = CODEC_ID_MP3;
+        *codec = AV_CODEC_ID_MP3;
         break;
     case IEC61937_MPEG2_EXT:
         *offset = 4608;
-        *codec = CODEC_ID_MP3;
+        *codec = AV_CODEC_ID_MP3;
         break;
     case IEC61937_MPEG2_AAC:
-        init_get_bits(&gbc, buf, AAC_ADTS_HEADER_SIZE * 8);
-        if (avpriv_aac_parse_header(&gbc, &aac_hdr)) {
+        ret = av_adts_header_parse(buf, &samples, &frames);
+        if (ret < 0) {
             if (s) /* be silent during a probe */
                 av_log(s, AV_LOG_ERROR, "Invalid AAC packet in IEC 61937\n");
-            return AVERROR_INVALIDDATA;
+            return ret;
         }
-        *offset = aac_hdr.samples << 2;
-        *codec = CODEC_ID_AAC;
+        *offset = samples << 2;
+        *codec = AV_CODEC_ID_AAC;
         break;
     case IEC61937_MPEG2_LAYER1_LSF:
         *offset = spdif_mpeg_pkt_offset[0][0];
-        *codec = CODEC_ID_MP1;
+        *codec = AV_CODEC_ID_MP1;
         break;
     case IEC61937_MPEG2_LAYER2_LSF:
         *offset = spdif_mpeg_pkt_offset[0][1];
-        *codec = CODEC_ID_MP2;
+        *codec = AV_CODEC_ID_MP2;
         break;
     case IEC61937_MPEG2_LAYER3_LSF:
         *offset = spdif_mpeg_pkt_offset[0][2];
-        *codec = CODEC_ID_MP3;
+        *codec = AV_CODEC_ID_MP3;
         break;
     case IEC61937_DTS1:
         *offset = 2048;
-        *codec = CODEC_ID_DTS;
+        *codec = AV_CODEC_ID_DTS;
         break;
     case IEC61937_DTS2:
         *offset = 4096;
-        *codec = CODEC_ID_DTS;
+        *codec = AV_CODEC_ID_DTS;
         break;
     case IEC61937_DTS3:
         *offset = 8192;
-        *codec = CODEC_ID_DTS;
+        *codec = AV_CODEC_ID_DTS;
         break;
     default:
         if (s) { /* be silent during a probe */
-            av_log(s, AV_LOG_WARNING, "Data type 0x%04x", data_type);
-            av_log_missing_feature(s, " in IEC 61937 is", 1);
+            avpriv_request_sample(s, "Data type 0x%04x in IEC 61937",
+                                  data_type);
         }
         return AVERROR_PATCHWELCOME;
     }
@@ -100,19 +104,24 @@ static int spdif_get_offset_and_codec(AVFormatContext *s,
 }
 
 /* Largest offset between bursts we currently handle, i.e. AAC with
-   aac_hdr.samples = 4096 */
+   samples = 4096 */
 #define SPDIF_MAX_OFFSET 16384
 
 static int spdif_probe(AVProbeData *p)
 {
-    const uint8_t *buf = p->buf;
-    const uint8_t *probe_end = p->buf + FFMIN(2 * SPDIF_MAX_OFFSET, p->buf_size - 1);
+    enum AVCodecID codec;
+    return ff_spdif_probe (p->buf, p->buf_size, &codec);
+}
+
+int ff_spdif_probe(const uint8_t *p_buf, int buf_size, enum AVCodecID *codec)
+{
+    const uint8_t *buf = p_buf;
+    const uint8_t *probe_end = p_buf + FFMIN(2 * SPDIF_MAX_OFFSET, buf_size - 1);
     const uint8_t *expected_code = buf + 7;
     uint32_t state = 0;
     int sync_codes = 0;
     int consecutive_codes = 0;
     int offset;
-    enum CodecID codec;
 
     for (; buf < probe_end; buf++) {
         state = (state << 8) | *buf;
@@ -127,16 +136,16 @@ static int spdif_probe(AVProbeData *p)
             } else
                 consecutive_codes = 0;
 
-            if (buf + 4 + AAC_ADTS_HEADER_SIZE > p->buf + p->buf_size)
+            if (buf + 4 + AV_AAC_ADTS_HEADER_SIZE > p_buf + buf_size)
                 break;
 
             /* continue probing to find more sync codes */
-            probe_end = FFMIN(buf + SPDIF_MAX_OFFSET, p->buf + p->buf_size - 1);
+            probe_end = FFMIN(buf + SPDIF_MAX_OFFSET, p_buf + buf_size - 1);
 
             /* skip directly to the next sync code */
             if (!spdif_get_offset_and_codec(NULL, (buf[2] << 8) | buf[1],
-                                            &buf[5], &offset, &codec)) {
-                if (buf + offset >= p->buf + p->buf_size)
+                                            &buf[5], &offset, codec)) {
+                if (buf + offset >= p_buf + buf_size)
                     break;
                 expected_code = buf + offset;
                 buf = expected_code - 7;
@@ -149,29 +158,29 @@ static int spdif_probe(AVProbeData *p)
 
     if (sync_codes >= 6)
         /* good amount of sync codes but with unexpected offsets */
-        return AVPROBE_SCORE_MAX / 2;
+        return AVPROBE_SCORE_EXTENSION;
 
     /* some sync codes were found */
-    return AVPROBE_SCORE_MAX / 8;
+    return AVPROBE_SCORE_EXTENSION / 4;
 }
 
-static int spdif_read_header(AVFormatContext *s, AVFormatParameters *ap)
+static int spdif_read_header(AVFormatContext *s)
 {
     s->ctx_flags |= AVFMTCTX_NOHEADER;
     return 0;
 }
 
-static int spdif_read_packet(AVFormatContext *s, AVPacket *pkt)
+int ff_spdif_read_packet(AVFormatContext *s, AVPacket *pkt)
 {
     AVIOContext *pb = s->pb;
     enum IEC61937DataType data_type;
-    enum CodecID codec_id;
+    enum AVCodecID codec_id;
     uint32_t state = 0;
     int pkt_size_bits, offset, ret;
 
     while (state != (AV_BSWAP16C(SYNCWORD1) << 16 | AV_BSWAP16C(SYNCWORD2))) {
         state = (state << 8) | avio_r8(pb);
-        if (url_feof(pb))
+        if (avio_feof(pb))
             return AVERROR_EOF;
     }
 
@@ -179,7 +188,7 @@ static int spdif_read_packet(AVFormatContext *s, AVPacket *pkt)
     pkt_size_bits = avio_rl16(pb);
 
     if (pkt_size_bits % 16)
-        av_log_ask_for_sample(s, "Packet does not end to a 16-bit boundary.");
+        avpriv_request_sample(s, "Packet not ending at a 16-bit boundary");
 
     ret = av_new_packet(pkt, FFALIGN(pkt_size_bits, 16) >> 3);
     if (ret)
@@ -188,7 +197,7 @@ static int spdif_read_packet(AVFormatContext *s, AVPacket *pkt)
     pkt->pos = avio_tell(pb) - BURST_HEADER_SIZE;
 
     if (avio_read(pb, pkt->data, pkt->size) < pkt->size) {
-        av_free_packet(pkt);
+        av_packet_unref(pkt);
         return AVERROR_EOF;
     }
     ff_spdif_bswap_buf16((uint16_t *)pkt->data, (uint16_t *)pkt->data, pkt->size >> 1);
@@ -196,7 +205,7 @@ static int spdif_read_packet(AVFormatContext *s, AVPacket *pkt)
     ret = spdif_get_offset_and_codec(s, data_type, pkt->data,
                                      &offset, &codec_id);
     if (ret) {
-        av_free_packet(pkt);
+        av_packet_unref(pkt);
         return ret;
     }
 
@@ -207,20 +216,20 @@ static int spdif_read_packet(AVFormatContext *s, AVPacket *pkt)
         /* first packet, create a stream */
         AVStream *st = avformat_new_stream(s, NULL);
         if (!st) {
-            av_free_packet(pkt);
+            av_packet_unref(pkt);
             return AVERROR(ENOMEM);
         }
-        st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
-        st->codec->codec_id = codec_id;
-    } else if (codec_id != s->streams[0]->codec->codec_id) {
-        av_log_missing_feature(s, "codec change in IEC 61937", 0);
+        st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
+        st->codecpar->codec_id = codec_id;
+    } else if (codec_id != s->streams[0]->codecpar->codec_id) {
+        avpriv_report_missing_feature(s, "Codec change in IEC 61937");
         return AVERROR_PATCHWELCOME;
     }
 
-    if (!s->bit_rate && s->streams[0]->codec->sample_rate)
+    if (!s->bit_rate && s->streams[0]->codecpar->sample_rate)
         /* stream bitrate matches 16-bit stereo PCM bitrate for currently
            supported codecs */
-        s->bit_rate = 2 * 16 * s->streams[0]->codec->sample_rate;
+        s->bit_rate = 2 * 16 * s->streams[0]->codecpar->sample_rate;
 
     return 0;
 }
@@ -230,6 +239,6 @@ AVInputFormat ff_spdif_demuxer = {
     .long_name      = NULL_IF_CONFIG_SMALL("IEC 61937 (compressed data in S/PDIF)"),
     .read_probe     = spdif_probe,
     .read_header    = spdif_read_header,
-    .read_packet    = spdif_read_packet,
-    .flags = AVFMT_GENERIC_INDEX,
+    .read_packet    = ff_spdif_read_packet,
+    .flags          = AVFMT_GENERIC_INDEX,
 };