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Avoid partial header reads

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Use net_recv_all() to avoid partial reads for the "meta" header (this
would break the whole stream).
This commit is contained in:
Romain Vimont 2018-11-11 21:26:48 +01:00
parent ebe998cf78
commit e562837c0b
1 changed files with 5 additions and 2 deletions
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7
app/src/decoder.c
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@ -2,6 +2,7 @@
#include <libavformat/avformat.h>
#include <libavutil/time.h>
#include <SDL2/SDL_assert.h>
#include <SDL2/SDL_events.h>
#include <SDL2/SDL_mutex.h>
#include <SDL2/SDL_thread.h>
@ -30,11 +31,13 @@ static int read_packet(void *opaque, uint8_t *buf, int buf_size) {
// the previous PTS read is now for the current frame
decoder->pts = decoder->next_pts;
// FIXME what if only part of the header is available?
ret = net_recv(decoder->video_socket, header, HEADER_SIZE);
ret = net_recv_all(decoder->video_socket, header, HEADER_SIZE);
if (ret <= 0)
return ret;
// no partial read (net_recv_all())
SDL_assert_release(ret == HEADER_SIZE);
// read the PTS for the next frame
decoder->next_pts = buffer_read64be(header);
remaining = buffer_read32be(&header[8]);