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libeplayer3-arm: insert original blank lines from exteplayer3.git, for better merge

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max_10
2018-04-10 11:31:57 +02:00
committed by Thilo Graf
parent d00c87b361
commit 704bcc5a21
79 changed files with 2070 additions and 117 deletions
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25
libeplayer3-arm/external/ffmpeg/src/latmenc.c vendored
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@@ -38,9 +38,11 @@
#define latmenc_err(fmt, x...)
#endif
int latmenc_decode_extradata(LATMContext *ctx, uint8_t *buf, int size)
{
MPEG4AudioConfig m4ac;
if (size > MAX_EXTRADATA_SIZE)
{
latmenc_err("Extradata is larger than currently supported.\n");
@@ -49,6 +51,7 @@ int latmenc_decode_extradata(LATMContext *ctx, uint8_t *buf, int size)
ctx->off = avpriv_mpeg4audio_get_config(&m4ac, buf, size * 8, 1);
if (ctx->off < 0)
return ctx->off;
if (ctx->object_type == AOT_ALS && (ctx->off & 7))
{
// as long as avpriv_mpeg4audio_get_config works correctly this is impossible
@@ -56,6 +59,7 @@ int latmenc_decode_extradata(LATMContext *ctx, uint8_t *buf, int size)
return AVERROR_INVALIDDATA;
}
/* FIXME: are any formats not allowed in LATM? */
if (m4ac.object_type > AOT_SBR && m4ac.object_type != AOT_ALS)
{
latmenc_err("Muxing MPEG-4 AOT %d in LATM is not supported\n", m4ac.object_type);
@@ -63,14 +67,17 @@ int latmenc_decode_extradata(LATMContext *ctx, uint8_t *buf, int size)
}
ctx->channel_conf = m4ac.chan_config;
ctx->object_type = m4ac.object_type;
return 0;
}
static void latmenc_write_frame_header(LATMContext *ctx, uint8_t *extradata, int extradata_size, PutBitContext *bs)
{
int header_size;
/* AudioMuxElement */
put_bits(bs, 1, !!ctx->counter);
if (!ctx->counter)
{
/* StreamMuxConfig */
@@ -79,6 +86,7 @@ static void latmenc_write_frame_header(LATMContext *ctx, uint8_t *extradata, int
put_bits(bs, 6, 0); /* numSubFrames */
put_bits(bs, 4, 0); /* numProgram */
put_bits(bs, 3, 0); /* numLayer */
/* AudioSpecificConfig */
if (ctx->object_type == AOT_ALS)
{
@@ -90,6 +98,7 @@ static void latmenc_write_frame_header(LATMContext *ctx, uint8_t *extradata, int
// + 3 assumes not scalable and dependsOnCoreCoder == 0,
// see decode_ga_specific_config in libavcodec/aacdec.c
avpriv_copy_bits(bs, extradata, ctx->off + 3);
if (!ctx->channel_conf)
{
GetBitContext gb;
@@ -99,11 +108,14 @@ static void latmenc_write_frame_header(LATMContext *ctx, uint8_t *extradata, int
avpriv_copy_pce_data(bs, &gb);
}
}
put_bits(bs, 3, 0); /* frameLengthType */
put_bits(bs, 8, 0xff); /* latmBufferFullness */
put_bits(bs, 1, 0); /* otherDataPresent */
put_bits(bs, 1, 0); /* crcCheckPresent */
}
ctx->counter++;
ctx->counter %= ctx->mod;
}
@@ -112,15 +124,22 @@ int latmenc_write_packet(LATMContext *ctx, uint8_t *data, int size, uint8_t *ext
{
PutBitContext bs;
int i, len;
if (size > 0x1fff)
goto too_large;
init_put_bits(&bs, ctx->buffer, size + 1024 + MAX_EXTRADATA_SIZE);
latmenc_write_frame_header(ctx, extradata, extradata_size, &bs);
/* PayloadLengthInfo() */
for (i = 0; i <= size - 255; i += 255)
put_bits(&bs, 8, 255);
put_bits(&bs, 8, size - i);
/* The LATM payload is written unaligned */
/* PayloadMux() */
if (size && (data[0] & 0xe1) == 0x81)
{
@@ -137,17 +156,23 @@ int latmenc_write_packet(LATMContext *ctx, uint8_t *data, int size, uint8_t *ext
}
else
avpriv_copy_bits(&bs, data, 8 * size);
avpriv_align_put_bits(&bs);
flush_put_bits(&bs);
len = put_bits_count(&bs) >> 3;
if (len > 0x1fff)
goto too_large;
memcpy(ctx->loas_header, "\x56\xe0\x00", 3);
ctx->loas_header[1] |= (len >> 8) & 0x1f;
ctx->loas_header[2] |= len & 0xff;
ctx->len = len;
return 0;
too_large:
latmenc_err("LATM packet size larger than maximum size 0x1fff\n");
return AVERROR_INVALIDDATA;
}