qsv: Load the hw hevc plugin by default on Linux

[ffmpeg] / libavcodec / mpegaudiodec_template.c

diff --git a/libavcodec/mpegaudiodec_template.c b/libavcodec/mpegaudiodec_template.c
index 293316b9441bcb2e96bb8c7ec988a27f38886231..e9ea65eed17b7a8d8420870714f7cff2815404e5 100644 (file)
--- a/libavcodec/mpegaudiodec_template.c
+++ b/libavcodec/mpegaudiodec_template.c
@@ -70,6 +70,7 @@ typedef struct MPADecodeContext {
     MPA_DECODE_HEADER
     uint8_t last_buf[LAST_BUF_SIZE];
     int last_buf_size;
+    int extrasize;
     /* next header (used in free format parsing) */
     uint32_t free_format_next_header;
     GetBitContext gb;
@@ -273,7 +274,7 @@ static av_cold void decode_init_static(void)
         scale_factor_mult[i][0] = MULLx(norm, FIXR(1.0          * 2.0), FRAC_BITS);
         scale_factor_mult[i][1] = MULLx(norm, FIXR(0.7937005259 * 2.0), FRAC_BITS);
         scale_factor_mult[i][2] = MULLx(norm, FIXR(0.6299605249 * 2.0), FRAC_BITS);
-        ff_dlog(NULL, "%d: norm=%x s=%x %x %x\n", i, norm,
+        ff_dlog(NULL, "%d: norm=%x s=%"PRIx32" %"PRIx32" %"PRIx32"\n", i, norm,
                 scale_factor_mult[i][0],
                 scale_factor_mult[i][1],
                 scale_factor_mult[i][2]);
@@ -412,7 +413,7 @@ static av_cold int decode_init(AVCodecContext * avctx)
 
     s->avctx = avctx;
 
-    avpriv_float_dsp_init(&s->fdsp, avctx->flags & CODEC_FLAG_BITEXACT);
+    avpriv_float_dsp_init(&s->fdsp, avctx->flags & AV_CODEC_FLAG_BITEXACT);
     ff_mpadsp_init(&s->mpadsp);
 
     if (avctx->request_sample_fmt == OUT_FMT &&
@@ -795,19 +796,13 @@ static void exponents_from_scale_factors(MPADecodeContext *s, GranuleDef *g,
     }
 }
 
-/* handle n = 0 too */
-static inline int get_bitsz(GetBitContext *s, int n)
-{
-    return n ? get_bits(s, n) : 0;
-}
-
-
 static void switch_buffer(MPADecodeContext *s, int *pos, int *end_pos,
                           int *end_pos2)
 {
-    if (s->in_gb.buffer && *pos >= s->gb.size_in_bits) {
+    if (s->in_gb.buffer && *pos >= s->gb.size_in_bits - s->extrasize * 8) {
         s->gb           = s->in_gb;
         s->in_gb.buffer = NULL;
+        s->extrasize    = 0;
         assert((get_bits_count(&s->gb) & 7) == 0);
         skip_bits_long(&s->gb, *pos - *end_pos);
         *end_pos2 =
@@ -839,7 +834,7 @@ static int huffman_decode(MPADecodeContext *s, GranuleDef *g,
     int i;
     int last_pos, bits_left;
     VLC *vlc;
-    int end_pos = FFMIN(end_pos2, s->gb.size_in_bits);
+    int end_pos = FFMIN(end_pos2, s->gb.size_in_bits - s->extrasize * 8);
 
     /* low frequencies (called big values) */
     s_index = 0;
@@ -882,8 +877,8 @@ static int huffman_decode(MPADecodeContext *s, GranuleDef *g,
 
             exponent= exponents[s_index];
 
-            ff_dlog(s->avctx, "region=%d n=%d x=%d y=%d exp=%d\n",
-                    i, g->region_size[i] - j, x, y, exponent);
+            ff_dlog(s->avctx, "region=%d n=%d y=%d exp=%d\n",
+                    i, g->region_size[i] - j, y, exponent);
             if (y & 16) {
                 x = y >> 5;
                 y = y & 0x0f;
@@ -1361,19 +1356,16 @@ static int mp_decode_layer3(MPADecodeContext *s)
     if (!s->adu_mode) {
         int skip;
         const uint8_t *ptr = s->gb.buffer + (get_bits_count(&s->gb)>>3);
-        int extrasize = av_clip(get_bits_left(&s->gb) >> 3, 0,
-                                FFMAX(0, LAST_BUF_SIZE - s->last_buf_size));
+        s->extrasize = av_clip((get_bits_left(&s->gb) >> 3) - s->extrasize, 0,
+                               FFMAX(0, LAST_BUF_SIZE - s->last_buf_size));
         assert((get_bits_count(&s->gb) & 7) == 0);
         /* now we get bits from the main_data_begin offset */
         ff_dlog(s->avctx, "seekback:%d, lastbuf:%d\n",
                 main_data_begin, s->last_buf_size);
 
-        memcpy(s->last_buf + s->last_buf_size, ptr, extrasize);
+        memcpy(s->last_buf + s->last_buf_size, ptr, s->extrasize);
         s->in_gb = s->gb;
-        init_get_bits(&s->gb, s->last_buf, s->last_buf_size*8);
-#if !UNCHECKED_BITSTREAM_READER
-        s->gb.size_in_bits_plus8 += extrasize * 8;
-#endif
+        init_get_bits(&s->gb, s->last_buf, (s->last_buf_size + s->extrasize) * 8);
         s->last_buf_size <<= 3;
         for (gr = 0; gr < nb_granules && (s->last_buf_size >> 3) < main_data_begin; gr++) {
             for (ch = 0; ch < s->nb_channels; ch++) {
@@ -1384,15 +1376,17 @@ static int mp_decode_layer3(MPADecodeContext *s)
             }
         }
         skip = s->last_buf_size - 8 * main_data_begin;
-        if (skip >= s->gb.size_in_bits && s->in_gb.buffer) {
-            skip_bits_long(&s->in_gb, skip - s->gb.size_in_bits);
+        if (skip >= s->gb.size_in_bits - s->extrasize * 8 && s->in_gb.buffer) {
+            skip_bits_long(&s->in_gb, skip - s->gb.size_in_bits + s->extrasize * 8);
             s->gb           = s->in_gb;
             s->in_gb.buffer = NULL;
+            s->extrasize    = 0;
         } else {
             skip_bits_long(&s->gb, skip);
         }
     } else {
         gr = 0;
+        s->extrasize = 0;
     }
 
     for (; gr < nb_granules; gr++) {
@@ -1404,7 +1398,7 @@ static int mp_decode_layer3(MPADecodeContext *s)
                 uint8_t *sc;
                 int slen, slen1, slen2;
 
-                /* MPEG1 scale factors */
+                /* MPEG-1 scale factors */
                 slen1 = slen_table[0][g->scalefac_compress];
                 slen2 = slen_table[1][g->scalefac_compress];
                 ff_dlog(s->avctx, "slen1=%d slen2=%d\n", slen1, slen2);
@@ -1560,7 +1554,7 @@ static int mp_decode_frame(MPADecodeContext *s, OUT_INT **samples,
         s->last_buf_size=0;
         if (s->in_gb.buffer) {
             align_get_bits(&s->gb);
-            i = get_bits_left(&s->gb)>>3;
+            i = (get_bits_left(&s->gb) >> 3) - s->extrasize;
             if (i >= 0 && i <= BACKSTEP_SIZE) {
                 memmove(s->last_buf, s->gb.buffer + (get_bits_count(&s->gb)>>3), i);
                 s->last_buf_size=i;
@@ -1568,12 +1562,12 @@ static int mp_decode_frame(MPADecodeContext *s, OUT_INT **samples,
                 av_log(s->avctx, AV_LOG_ERROR, "invalid old backstep %d\n", i);
             s->gb           = s->in_gb;
             s->in_gb.buffer = NULL;
+            s->extrasize    = 0;
         }
 
         align_get_bits(&s->gb);
         assert((get_bits_count(&s->gb) & 7) == 0);
-        i = get_bits_left(&s->gb) >> 3;
-
+        i = (get_bits_left(&s->gb) >> 3) - s->extrasize;
         if (i < 0 || i > BACKSTEP_SIZE || nb_frames < 0) {
             if (i < 0)
                 av_log(s->avctx, AV_LOG_ERROR, "invalid new backstep %d\n", i);
@@ -1631,12 +1625,12 @@ static int decode_frame(AVCodecContext * avctx, void *data, int *got_frame_ptr,
         return AVERROR_INVALIDDATA;
 
     header = AV_RB32(buf);
-    if (ff_mpa_check_header(header) < 0) {
+
+    ret = avpriv_mpegaudio_decode_header((MPADecodeHeader *)s, header);
+    if (ret < 0) {
         av_log(avctx, AV_LOG_ERROR, "Header missing\n");
         return AVERROR_INVALIDDATA;
-    }
-
-    if (avpriv_mpegaudio_decode_header((MPADecodeHeader *)s, header) == 1) {
+    } else if (ret == 1) {
         /* free format: prepare to compute frame size */
         s->frame_size = -1;
         return AVERROR_INVALIDDATA;
@@ -1706,12 +1700,11 @@ static int decode_frame_adu(AVCodecContext *avctx, void *data,
     // Get header and restore sync word
     header = AV_RB32(buf) | 0xffe00000;
 
-    if (ff_mpa_check_header(header) < 0) { // Bad header, discard frame
+    ret = avpriv_mpegaudio_decode_header((MPADecodeHeader *)s, header);
+    if (ret < 0) {
         av_log(avctx, AV_LOG_ERROR, "Invalid frame header\n");
-        return AVERROR_INVALIDDATA;
+        return ret;
     }
-
-    avpriv_mpegaudio_decode_header((MPADecodeHeader *)s, header);
     /* update codec info */
     avctx->sample_rate = s->sample_rate;
     avctx->channels    = s->nb_channels;
@@ -1903,11 +1896,10 @@ static int decode_frame_mp3on4(AVCodecContext *avctx, void *data,
         }
         header = (AV_RB32(buf) & 0x000fffff) | s->syncword; // patch header
 
-        if (ff_mpa_check_header(header) < 0) // Bad header, discard block
+        ret = avpriv_mpegaudio_decode_header((MPADecodeHeader *)m, header);
+        if (ret < 0) // Bad header, discard block
             break;
 
-        avpriv_mpegaudio_decode_header((MPADecodeHeader *)m, header);
-
         if (ch + m->nb_channels > avctx->channels ||
             s->coff[fr] + m->nb_channels > avctx->channels) {
             av_log(avctx, AV_LOG_ERROR, "frame channel count exceeds codec "