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Add possibility to provide moov atom data as separate file.

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This will allow playback of MP4 files which are under download and
moov atom is located at the end of file.

Signed-off-by: max_10 <max_10@gmx.de>
This commit is contained in:
samsamsam
2018-04-07 12:47:45 +02:00
committed by Thilo Graf
parent 449438e144
commit f380103bfc
5 changed files with 198 additions and 53 deletions
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155
libeplayer3-arm/container/container_ffmpeg.c
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@@ -1353,40 +1353,142 @@ static int32_t interrupt_cb(void *ctx)
}
#ifdef SAM_CUSTOM_IO
typedef struct CustomIOCtx_t
{
FILE *pFile;
FILE *pMoovFile;
int64_t iOffset;
char *szFile;
uint64_t iFileSize;
char *szMoovAtomFile;
uint64_t iMoovAtomOffset;
} CustomIOCtx_t;
CustomIOCtx_t *custom_io_tab[IPTV_AV_CONTEXT_MAX_NUM] = {NULL, NULL};
int SAM_ReadFunc(void *ptr, uint8_t *buffer, int lSize)
{
size_t ret = fread((void *) buffer, (size_t) 1, (size_t) lSize, (FILE *)ptr);
return (int)ret;
CustomIOCtx_t *io = (CustomIOCtx_t *)ptr;
int ret = 0;
if (!io->pMoovFile)
{
ret = (int)fread((void *) buffer, (size_t) 1, (size_t) lSize, io->pFile);
}
else
{
if (io->iOffset < io->iMoovAtomOffset)
{
ret = (int)fread((void *) buffer, (size_t) 1, (size_t) lSize, io->pFile);
buffer += ret;
lSize -= ret;
}
if (io->iOffset + ret >= io->iMoovAtomOffset)
{
if (ret)
{
if (fseeko(io->pMoovFile, io->iOffset + ret - io->iMoovAtomOffset, SEEK_SET))
{
// something goes wrong
ffmpeg_err("fseeko on moov atom file fail \n");
lSize = 0;
}
}
ret += (int)fread((void *) buffer, (size_t) 1, (size_t) lSize, io->pMoovFile);
}
io->iOffset += ret;
}
return ret;
}
// whence: SEEK_SET, SEEK_CUR, SEEK_END (like fseek) and AVSEEK_SIZE
int64_t SAM_SeekFunc(void *ptr, int64_t pos, int whence)
{
if (AVSEEK_SIZE == whence)
CustomIOCtx_t *io = (CustomIOCtx_t *)ptr;
int64_t ret = -1;
if (!io->pMoovFile)
{
return -1;
if (AVSEEK_SIZE != whence)
{
ret = (int64_t)fseeko(io->pFile, (off_t)pos, whence);
if (0 == ret)
{
ret = (int64_t)ftello(io->pFile);
}
}
}
int ret = fseeko((FILE *)ptr, (off_t)pos, whence);
if (0 == ret)
else
{
return (off_t)ftello((FILE *)ptr);
switch (whence)
{
case SEEK_SET:
ret = pos;
break;
case SEEK_CUR:
ret += pos;
break;
case SEEK_END:
ret = io->iFileSize + pos;
break;
case AVSEEK_SIZE:
return io->iFileSize;
default:
return -1;
}
if (ret >= 0 && ret <= io->iFileSize)
{
if (ret < io->iMoovAtomOffset)
{
if (!fseeko(io->pFile, (off_t)ret, SEEK_SET))
io->iOffset = ret;
else
ret = -1;
}
else
{
if (!fseeko(io->pMoovFile, (off_t)(ret - io->iMoovAtomOffset), SEEK_SET))
io->iOffset = ret;
else
ret = -1;
}
}
else
{
ret = -1;
}
}
return ret;
}
AVIOContext *container_ffmpeg_get_avio_context(char *filename, size_t avio_ctx_buffer_size)
AVIOContext *container_ffmpeg_get_avio_context(CustomIOCtx_t *custom_io, size_t avio_ctx_buffer_size)
{
if (strstr(filename, "file://") == filename)
{
filename += 7;
}
if (strstr(custom_io->szFile, "file://") == custom_io->szFile)
custom_io->szFile += 7;
FILE *pFile = fopen(filename, "rb");
if (NULL == pFile)
custom_io->pFile = fopen(custom_io->szFile, "rb");
if (NULL == custom_io->pFile)
{
return NULL;
}
if (custom_io->szMoovAtomFile && custom_io->szMoovAtomFile[0] != '\0')
{
if (strstr(custom_io->szMoovAtomFile, "file://") == custom_io->szMoovAtomFile)
custom_io->szMoovAtomFile += 7;
custom_io->pMoovFile = fopen(custom_io->szMoovAtomFile, "rb");
if (NULL == custom_io->pMoovFile)
{
fclose(custom_io->pFile);
return NULL;
}
}
AVIOContext *avio_ctx = NULL;
uint8_t *avio_ctx_buffer = NULL;
@@ -1395,7 +1497,7 @@ AVIOContext *container_ffmpeg_get_avio_context(char *filename, size_t avio_ctx_b
{
return NULL;
}
avio_ctx = avio_alloc_context(avio_ctx_buffer, avio_ctx_buffer_size, 0, pFile, &SAM_ReadFunc, NULL, &SAM_SeekFunc);
avio_ctx = avio_alloc_context(avio_ctx_buffer, avio_ctx_buffer_size, 0, custom_io, &SAM_ReadFunc, NULL, &SAM_SeekFunc);
if (!avio_ctx)
{
return NULL;
@@ -1404,7 +1506,7 @@ AVIOContext *container_ffmpeg_get_avio_context(char *filename, size_t avio_ctx_b
}
#endif
int32_t container_ffmpeg_init_av_context(Context_t *context, char *filename, int32_t AVIdx)
int32_t container_ffmpeg_init_av_context(Context_t *context, char *filename, uint64_t fileSize, char *moovAtomFile, uint64_t moovAtomOffset, int32_t AVIdx)
{
int32_t err = 0;
AVInputFormat *fmt = NULL;
@@ -1416,7 +1518,16 @@ int32_t container_ffmpeg_init_av_context(Context_t *context, char *filename, int
if (0 == strstr(filename, "://") ||
0 == strncmp(filename, "file://", 7))
{
AVIOContext *avio_ctx = container_ffmpeg_get_avio_context(filename, 4096);
AVIOContext *avio_ctx = NULL;
custom_io_tab[AVIdx] = malloc(sizeof(CustomIOCtx_t));
sizeof(custom_io_tab[AVIdx], 0x00, sizeof(CustomIOCtx_t));
custom_io_tab[AVIdx]->szFile = filename;
custom_io_tab[AVIdx]->iFileSize = fileSize;
custom_io_tab[AVIdx]->szMoovAtomFile = moovAtomFile;
custom_io_tab[AVIdx]->iMoovAtomOffset = moovAtomOffset;
avio_ctx = container_ffmpeg_get_avio_context(custom_io_tab[AVIdx], 4096);
if (avio_ctx)
{
avContextTab[AVIdx]->pb = avio_ctx;
@@ -1424,6 +1535,8 @@ int32_t container_ffmpeg_init_av_context(Context_t *context, char *filename, int
}
else
{
free(custom_io_tab[AVIdx]);
custom_io_tab[AVIdx] = NULL;
return cERR_CONTAINER_FFMPEG_OPEN;
}
}
@@ -1782,15 +1895,17 @@ int32_t container_ffmpeg_init(Context_t *context, PlayFiles_t *playFilesNames)
av_log_set_callback(ffmpeg_silen_callback);
context->playback->abortRequested = 0;
int32_t res = container_ffmpeg_init_av_context(context, playFilesNames->szFirstFile, 0);
int32_t res = container_ffmpeg_init_av_context(context, playFilesNames->szFirstFile, playFilesNames->iFirstFileSize, \
playFilesNames->szFirstMoovAtomFile, playFilesNames->iFirstMoovAtomOffset, 0);
if (0 != res)
{
return res;
}
if (playFilesNames->szSecondFile)
if (playFilesNames->szSecondFile && playFilesNames->szSecondFile[0] != '\0')
{
res = container_ffmpeg_init_av_context(context, playFilesNames->szSecondFile, 1);
res = container_ffmpeg_init_av_context(context, playFilesNames->szSecondFile, playFilesNames->iSecondFileSize, \
playFilesNames->szSecondMoovAtomFile, playFilesNames->iSecondMoovAtomOffset, 1);
}
if (0 != res)